GENERAL EMBRYOLOGICAL INFORMATION SERVICE Issued by the Hubrecht Laboratory on behalf of the General Embryological Information Service Foundation VOLUME 14 data collected during 1971 Utrecht - Netherlands Edited by Dr. J. Faber, Deputy Director of the Hubrecht Laboratory Managing Editor: B. Z. Salome Hubrecht Laboratory Uppsalalaan 1 Universiteitscentrum 'De Uithof UTRECHT, Netherlands Printed in the Netherlands, 1972 GENERAL EMBRYOLOGICAL INFORMATION SERVICE Marine Biological L?bor: tory" LIBRA*?*' MAYS 1972 Woods Hole, iviass. VOLUME 14 data collected during 1971 Utrecht-Netherlands CONTENTS Introduction p. 5 Directory of Names and Addresses, with subjects of research (alphabetical order) p. 7 Directory of Institutes, with members engaged in developmental biology (geographical order) p. 200 Africa p. 200 N. America Canada p. 201 United States p. 202 Mexico p. 215 S. America p. 215 Asia p. 216 Australia Australia p. 220 New Zealand p. 221 Europe p. 221 Subject Index (alphabetical order) p. 241 Communications from the Hubrecht Laboratory p. 317 Communications of the "International Society of Developmental Biologists" p. 318 Book notices p. 323 INTRODUCTION To enhance the informational value of the General Embryological Information Service, and to avoid a considerable increase of its size, some changes in the presentation of the data have been made. In the Directory of Names and Addresses, which now contains close to 3000 names, fewer names without research subjects are listed, as these entries contain incomplete and partially obsolete information (see explanation on p. 7). The number of complete entries has increased by about 10 %. To save space the wording of the research subjects was shortened as much as possible. As in previous volumes the wording used on the data sheets by the investigators themselves was generally retained. Repetitions of words, and parts of entries giving too much detail were omitted; phrases such as: "research on . . ." and "studies of . . ." were cancelled; often methods were put in brackets at the end of the entry. Inevitably these condensations have caused a certain loss of in- formation, but we feel that clarity is not seriously impaired. Much attention was devoted to the names of experimental organisms. With only a few exceptions, for the higher animal taxa the following books have been consulted: L. A. Borradaile and F. A. Potts, The Invertebrata (4th ed., 1963) and J. Z. Young, The life of vertebrates (2nd ed., 1962). Lord Roth- schild, A classification of living animals (2nd ed., 1965) was also of much use. Generally the highest taxon given at the end of the entry is the class, but in Mammalia, Reptilia, Amphibia, and Insecta it is the order, while in Crustacea and Arachnida in addition to the class the name of the order is also given. The Book Notices section has ondergone some important changes, which be- came necessary in view of the much greater number of books received. A smaller type was used. New subdivisions into subject categories and types of books were made, and the titles and other bibliographical data are presented in a new format. The number of institutes listed has remained fairly constant. No new coun- tries are listed; Jamaica and Zambia no longer appear in the list. J. FABER B. Z. SALOMfi DIRECTORY OF NAMES AND ADDRESSES with Subjects of Research (alphabetical order) Unless stated otherwise, information in this directory is based upon data sheets which were sent to the institutes listed in the Directory of Institutes, and returned to the editors before October 1971. Scientists were asked to state their name, degree (s), address, and research subjects in so far as recent, unpublished work in developmental biology was concerned. 1. Complete entries (with research subjects) are entirely based on the data sheets. Subjects identical to those in vol. 13 were confirmed by the scientists still to be correct. 2. Entries without research subjects a. Persons listed on the sheets as being engaged in research in develop- mental biology, without further specification of subjects. b. Persons with a complete entry in vol. 13 who have not returned their sheets. Names, degrees, and addresses were reprinted unchanged from vol. 13 and may be partially out of date. c. Emeritus professors no longer active in research. d. Some persons who have not returned data sheets for two or more volumes have been listed nevertheless; cases in point are several I.S.D.B. members ( marked • ) . e. Persons listed in vol. 13 whose death has come to our attention (marked f). 3. Persons listed in vol. 13 but not in vol. 14 a. Persons who had research subjects in vol. 13 but are no longer engaged in research in developmental biology. b. Persons who had no research subjects in vol. 13 and have not returned the sheets for both vol. 13 and 14. ABBOTT, Miss U. Ph.D., Prof. - Developm. Biol. Program, Natl. Sci. Found., WASHING- TON, D.C. 20550, U.S.A. • ABEL, W. Dr. ~ Bot. Inst., Univ. Heidelberg, Hofmeisterweg 4, 69 HEIDELBERG, W. Ger- many a Differentiation and genetic regulation of development. Sphaecocarpus donelli (Hepaticae) , Nicotiana tabacum (Angiospermae) ABELOOS, M. Prof. - Lab. de Biol. Gen., Fac. des Sci., Place Victor Hugo, MARSEILLE, France ABERCROMBIE, M. Prof. - Dept. of Zool. and Comp. Anat., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England • a Cell relations in tissue culture. Gallus gallus (Aves), Mus musculus (Rodentia) (with J. E. M. HEAYSMAN and S. M. PEGRUM) ABRAMOVICI, A. Dr.es Sci. — Dept. of Embryol. and Teratol., Med. School, Tel-Aviv Univ., TEL-AVIV, Israel ABRO, A. — Inst, of Anat., Univ. of Bergen, Arstadvollen, 5000 BERGEN, Norway a Embryology of the testis. Erinaceus spec, Sorex spec, Neomys spec. (Insectivoca) ACHTELIK, W. Ph.D. — Dept. of Gen. Biol., Silesian Acad, of Med., K.Marksa 19, Rokitnica, ZABRZE 8, Poland ACKERMAN, G. A. M.D., Ph.D., Prof. ~ Dept. of Anat., Ohio State Univ., 333 W.lOth Ave., COLUMBUS, Ohio 43210, U.S.A. a Morphology and histochemistry of the hemopoietic system in embryonic and adult condition. Homo sapiens and other spp. (Mammalia) ACTON, A. B. D.Phil., Prof. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a Electron microscopy of the developing male accessory glands. Drosophila melanogaster (Diptera) b Study by laser microbeam of the new spacial patterns generated by irradiation of the cytoplasm and developing cell wall. Micrastecias rotata, M. denticulata, M. radiata (Des~ midiales) (with Th. C. LACALLI) c Possible mathematical models for generating very non-random arrays of microscopic particles; experimental testing of the models with pore bodies in the cell wall. Same species as b (with Th. C. LACALLI) ADAMS, C. E. Ph.D. — A.R.C. Unit of Reprod. Physiol, and Biochem., 307 Huntingdon Rd., CAMBRIDGE, CB3 OJQ, England a Development of ova (preimplantation stages) with special reference to the maternal environment using the egg transfer technique. Oryctolagus cuniculus (Lagomorpha) b Sperm transport and quantitative aspects of fertilization. Oryctolagus cuniculus (Lago- morpha) c Delayed implantation. Meriones unguiculatus (Rodentia) , Mustela vison (Carnivora) ADAMS, T. S. Ph.D. — USDA Metab. & Radiat. Research Lab., State Univ. Station, FARGO, N.D. 58103, U.S.A. a Endocrine regulation of ovary maturation. Musca domestica (Diptera) b Use of endocrines to disrupt morphogenesis. Musca domestica (Diptera) ADAMS SMITH, W. N. D.Phil., M.D., Prof. ~ Dept. of Anat., Med. Univ. of South Carolina, 80 Barre St., CHARLESTON, S.C. 29401, U.S.A. a Teratogenic influences of a variety of known teratogens upon heart development. Rattus norvegicus (Rodentia) b Influence of sex hormones upon sexual maturation of the developing brain. Rattus norvegicus (Rodentia) ADELMANN, H. B. Dr., Prof.(Emer.) *- Div. of Biol. Sci., Cornell Univ., Stimson Hall, ITHACA, N.Y. 14850, U.S.A. • ADINOLFI, M. M.D., Ph.D. ~ Paediat. Research Unit, Guy's Hosp. Med. School, LONDON S.E.I, England a Ontogenesis of components of complement and lysozyme, using in vitro cultures of foetal tissues and analysis of the newly synthesized proteins by means of autoradiography of immunoelectrophoretic plates. Homo sapiens (Primates) b The development of the histocompatibility antigens during life in u t e r o, using extracts from foetal tissues and the inhibition of cytotoxic antibodies. Same species as a ADLER, R. M.D. — Inst, de Anat. Gen. y Embriol., Fac. de Medicina, Paraguay 2155, BUENOS AIRES, Argentina a Experimental neuroembryology. Gallus domesticus (Aves) b Electron microscopy of developing nervous system. Same species as a c Dis- and reaggregation studies of neural tube development. Same species as a d Neural differentiation in vitro. Same species as a AESCHLIMANN, A. Dr.phil.II, Prof. — Inst, de Biol. Anim., Univ. de Fribourg, 1700 FRIBOURG, Switzerland AFZAL, Miss Z. Dr.d'Etat, Dr. de spec. — - Lab. de Bot, Univ. de Provence, Centre St. Charles, Place Victor Hugo, 13 MARSEILLE 3, France a Effect of leaf primordia, lateral inflorescence primordia and apical meristem on flowering. Pisum sativum (Leguminosae) (with P. A. J. NEVILLE) b Determination of flower bilaterality (microsurgical method). Pisum sativum (Leguminosae) (with P. A. J. NEVILLE) AFZELIUS, B. A. Fil.Dr. ~- Wenner-Gren Inst., Norrtullsgatan 16, S-113 45 STOCKHOLM, Sweden a Fine structure of germ cells. (Invertebcata; Vettebrata) AGARWAL, L. P. Prof. — Dr. Rajendra Prasad Center for Ophthalmol. Sci., All India Inst. of Med. Sci., NEW DELHI- 16, India AGGARWAL, S. K. Ph.D., Prof. ~- Dept. of Zool., Michigan State Univ., 220 Nat. Sci. Bldg., EAST LANSING, Mich. 48823, U.S.A. a Histochemistry and electron microscopy of vitellogenesis. Tenebrio molitor (Coleoptera) b Endocrine control of development. (Insecta) AGRELL, I. P. S. Fil.Dr., Prof. — Zoophysiol. Inst., Univ. of Lund, Helgonavagen 3, 223 62 LUND, Sweden • AISENSTADT, T. B. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Effect of gonadotropins and changes in the germinal vesicle and in the oocyte cytoplasm during maturation. (Acipenseridae, Chondrostei; Amphibia) (with T. A. DETTLAFF and S. I. DAVIDOVA) AKETA, K. D.Sc. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, Japan • AKHABADZE, L. V. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Regeneration of myocardium. Rattus norvegicus, Canis familiaris, Felis domestica, Orycto- lagus cuniculus (Mammalia) ALBANESE (CARMIGNANI), Mrs. M. P. ~ 1st. di Zool. e di Anat. Comp., Univ. di Messina, Via dei Verdi 75, 98100 MESSINA, Italy ALBERT, J. Dr.Biol.Anim. — Lab. de Biol. Anim. A, Univ. Bordeaux I, Av. des Facultes, 33 TALENCE, France a Morphogenese de l'appareil digestif. (Anura) b Developpement des glandes digestives. (Anura) c Ultrastructure des cellules du tube digestif chez l'embryo et la larve. (Anura) d Endoderme et derives. Rana dalmatina, Bufo bufo (Anura) ALBRIGHT, J. F. Ph.D. — Dept. of Life Sci., Indiana State Univ., TERRE HAUTE, Ind. 47809, U.S.A. • a Ontogeny of the immune system. Gallus gallus (Aves), Mus musculus (Rodentia) b Differentiation of erythrocytic system during ontogeny. Same species as a c Development and aging of the lung. Oryctolagus cuniculus (Lagomorpha), Rattus spec. (Rodentia) ALEXANDER, G. D.Agr.Sc. — Div. of Anim. Physiol., C.S.I.R.O., Ian Clunies Ross Anim. Res. Lab., P.O. Box 144, PARRAMATTA, N.S.W. 2150, Australia a Investigations of the physical and physiological relations between maternal and embryonic tissues. Ovis spec. (Artiodactyla) ALEXANDRE, H. L. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des Chevaux, 1640 RHODE-ST-GEN£SE, Belgium a Sensitivity to X-rays during early embryonic stages (electron microscopy, biochemistry). Pleurodeles waltlii (Urodela) ALEXANDRE, J.-H. ~ Lab. d'Anat, Univ. Paris V ~ Rene Descartes, 45 rue des Saints Peres, 75 PARIS Vie, France a Organogenesis and morphogenesis of the metanephros. Homo sapiens (Primates) ALEXANDRU (HORVAT), Mrs. C. Dr.med. — Lab. de Embriol. Norm. si Patol., Acad, de Stiin^e Med., Centr. de Cere. Med., Bui. M. Viteazul 24, TIMI§OARA, Rumania a Experimental teratology of the central nervous system. Gallus domesticus (Aves) ALLEAUME (BORDES), Mrs. N. Dr. Biol.anim. ~ Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facultes, 33 TALENCE, France a Experiments sur la determination des caracteres larvaires et imaginaux. Calliphora spec, Drosophila spec. (Dipteta) ALLEN. E. R. ~- Dept. of Anat., Med. Center, Louisiana State Univ., 1542 Tulane Ave., NEW ORLEANS, La. 70112, U.S.A. a Immunochemical studies of actin and myosin synthesis in somites. Gallus domesticus (Aves) b Morphological (ultrastructural) organization of contractile protein in myogenic tissue into functional sarcomeres. Gallus domesticus (Aves), Sus scrofa (Artiodactyla) c Control of ribosomal synthesis in oocytes. Acheta domesticus (Orthoptera) ALLEN, R. D. Ph.D., Prof. ~ Dept. of Biol. Sci., State Univ. of New York. 1400 Washing- ton Ave., ALBANY, N.Y. 12203, U.S.A. • a Cell division and motility of unicellular organisms and of tissue cells in vivo and i n vitro. (Sarcodina; Metazoa) ALLISON, J. E. Ph.D., Prof. — Dept. of Anat. Sci., Univ. of Oklahoma Med. Center, 801 NE 13th St., OKLAHOMA-City, Okla. 73104, U.S.A. a Genital and urinary anomalies with emphasis on hermaphroditic alterations. Rattus rattus Rodentia) ALLISTON, C. W. Ph.D., Prof. ~ Herrick Labs., Dept. of Anim. Sci., School of Agric, Purdue Univ., LAFAYETTE, Ind. 47907, U.S.A. ALONSO, C. B.Sc. ~ Zool. Lab., Dept. of Cell Biol., Univ. of Nijmegen, Driehuizerweg 200, NIJMEGEN, Netherlands a Hormone controlled changes in nuclear RNA metabolism of salivary gland cells. Drosophila spec. (Dipteta) ALTMAN, J. Prof. - Dept. of Biol. Sci., Purdue Univ., LAFAYETTE, Ind. 47907, U.S.A. a Development of the brain. Rattus norvegicus (Rodentia), Felis domestica (Carnivora) b Effect of x-irradiation, undernutrition and hormonal treatments on brain development. Rattus spec. (Rodentia) c Effect of retardation of cerebellar maturation on development of motor skills. Same species as b ALVES, M. A. R. Dr.phil. — Dept. of Biol., Fac. Filos. Cienc. e Let. de Ribeirao Preto U.S.P., C.P. 759, RIBEIRAO PRfiTO, S.P., Brazil AMADO, P. O. M.D. ~- Inst, de Histol. e Embriol., Fac. de Med., Av. Prof. Egas Moniz, LISBOA 4, Portugal a Cytology, histochemistry and organ culture of the mesonephros. Gallus domesticus (Aves) AMANO, H. D.Sc, Prof. ~ Biol. Lab., Doshisha Univ., Kamikyo-ku, Karasuma Imadegawa, KYOTO, Japan a Developmental mechanism of the heart and the limb. Triturus pyrrhogaster (Urodela) AMANUMA, A. D.Sc. - Lab. of Biol, Gifu Coll. of Dent., 1851 Takano, Hozumi-cho, Motosu-gun, GIFU-ken, Japan a Electron microscopy and experiments on differentiation of embryonic gonads. Gallus domesticus (Aves) AMES, I. H. Ph.D. — Dept. of Anat., Upstate Med. Centre, State Univ. of New York, 766 Irving Ave., SYRACUSE, N.Y. 13210, U.S.A. a Genetic tumor induction and development. Nicotians spec. (Solanaceae) b Fine structure of genetic tumor cells. Nicotiana spec. (Solanaceae) AMONS, F. M.Sc. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTER- DAM-O., Netherlands a Development of pineal gland. Gallus domesticus (Aves) b Influence of heavy metals on lymphosarcoma cell proliferation and behaviour in tissue culture. Mus musculus (Rodentia) c Pineal body in tissue culture. Gallus domesticus (Aves) AMOROSO, E. C. F.R.S., Prof. ~- Agric. Res. Counc, Inst, of Anim. Physiol., Brabaham, CAMBRIDGE, England • AMPRINO, R. M. M.D., Prof. — Inst, of Human Anat., Fac. of Med., Univ. of Bari, Policlinico, 70124 BARI, Italy • a Relations between ectoderm and mesoderm in the morphogenesis of the wing. Gallus domesticus (Aves) b Regulative capacities of the wing anlage. Gallus domesticus (Aves) AMY, R. L. Ph.D., Prof. — Dept. of Biol., Southwestern at Memphis, 2000 North Parkway, MEMPHIS, Tenn. 38112, U.S.A. a Ultraviolet microbeam irradiation and ruby laser microirradiation of the developing embryo. Habrobracon juglandis (= Bracon hebetov) (Hymenoptera) b Analysis of radiation-induced embryonic death. Same species as a ANDERSEN, H. A. Ph.D. — Biol. Inst., Carlsberg Found., 16 Tagensvej, DK 2200 COPEN- HAGEN N, Denmark a Replication of DNA after synchronization of the cell division with heat shocks. Tetrahy- mena pyriformis (Ciliata) ANDERSEN, O. F. B.A. — Dept. of Exper. Biol., Merck Inst, for Therap. Research, RAH- WAY, N.J. 07065, U.S.A. a Studies on fertilization. Mesocricetus auratus (Rodentia) ANDERSON, D. T. D.Sc. ~ School of Biol. Sci., Zool. Bldg., Univ. of Sydney, SYDNEY, N.S.W. 2006, Australia a Embryology. Notoplana australis (Polycladida, Turbetlaria) ANDERSON, E. Prof. ~ Dept. of Zool., Univ. of Massachusetts, AMHERST, Mass. 01002, U.S.A. • ANDERSON, J. E. M.D., Prof. — Dept. of Anat., Fac. of Med., McMaster Univ., HAMIL- TON, Ont., Canada a Postnatal growth and development of bone. Homo sapiens (Primates) ANDERSON, J. J. Ph.D. ~ Dept. of Biol. Sci., Dartmouth Coll., HANOVER, N.H. 03755, U.S.A. a Metabolism of transfer RNA, function and control of aminoacyl-transfer RNA synthetases in early embryogenesis. Strong ylocentrotus purpuratus, Lytechinus pictus (Echinoidea) b In situ localization of rapidly labeled ribonucleic acid in embryos (autoradiography). Sabellaria spec. (Polychaeta) , Ilyanassa obsoleta (Gastropoda) ANDERSON, J. W. Ph.D. ~ Dept. of Anat., Bardeen Med. Labs., Univ. of Wisconsin, MADISON, Wis. 53706, U.S.A. a Perinatal transfer of antibodies via placenta, fetal membranes, mammary gland, gut. Rattus nocvegicus (Rodentia) b Histophysiology of ovulation. Mesocricetus auratus (Rodentia) ANDERSON, M. J. B.A. - Leland Stanford Jr. Univ., STANFORD, Calif. 94305, U.S.A. ANDERSON, P. N. M.D. - Lab. of Biol., Natl. Cane. Inst., N.I.H., Bldg. 8, Rm B-18, BETHESDA, Md. 20014, U.S.A. ANDRES, G. Dr., Prof. — Inst, fur Allgem. Zool. der Johannes Gutenberg Univ., Saarstr. 21, 65 MAINZ, W.Germany • a Interspecific transplantation of neural plate material (presumptive midbrain and medulla oblongata) ; development of the transplant and its influence on larval behaviour. Xenopus laevis, Hymenochirus boettgeri (Anura) ANDREW, Miss A. Ph.D. — Dept. of Anat, Med. School, Univ. of the Witwatersrand, Hospital St., Hillbrow, JOHANNESBURG, S.Africa a Autoradiography of the relation between histones, hormones, RNA synthesis, and protein synthesis in cultured neural crest cells. Xenopus laevis (Anura) (with V. GABIE, Dept. of Zool.) ANGRA, S. K. M.S. — Dr. Rajendra Prasad Center for Ophthalmol. Sci., All India Inst, of Med. Sci., NEW DELHI-16, India ANSEVIN (DABROWSKA), Mrs. K. Ph.D., Prof. - Dept. of Biol., Rice Univ., HOUSTON, Tex. 77001, U.S.A. a Determination in embryonic cells. Rana pipiens (Anura) 10 b The effect of the central nervous system on regeneration. Dugesia dorotocephala (Turbel- laria) c The influence of "artificial stroma" on reconstructive histogenesis by fetal organ cells. Gallus domesticus (Aves) ANTEUNIS, Miss A. H. J. D.Sc. — Centre de Physiol, et d'Immunol. Cell., Hopital Saint Antoine, 75 PARIS Xlle, France ANTON, H. J. Dr.phil., Prof. — Zool. Inst, der Univ., Weyertal 119, 5 K5LN 41, W.Germany a Protein metabolism during regeneration processes. (Amphibia) b Amino acid metabolism in regenerating tissues. (Amphibia) c DNA synthesis and cell cycle determination in regenerating systems. (Amphibia) AOTO, T. D.Sc, Prof. — Zool. Inst., Fac. of Sci., Hokkaido Univ., North 10, West 8, SAP- PORO, 060 Japan a Morphology and physiology of neurosecretion. (Crustacea; Pisces; Amphibia) b Regeneration and cytodifferentiation. Hydra magnipapillata (Hydrozoa) c Morphogenesis of the nauplius-eye. Palaemon paucidens (Decapoda, Crustacea) d Morphogenesis of the pineal organ. Xenopus laevis (Anura) APEKIN, V. S. — Azov Black Sea Res. Inst, of Marine Fish. Management and Oceano- graphy, Lab. of Physiol, of Fishes, Sverdlov St. 2, KERCH, Crimean Region, 334500 U.S.S.R. a Experimental and immunological study of maturation processes. Gobius melanostomus, G. batrachocephalus (Teleostei) ARGYRIS (FRANKENHUIS), Mrs. B. Ph.D., Prof. - Dept. Urol., Upstate Med. Center, State Univ. of New York, SYRACUSE, N.Y. 13210, U.S.A. a Maturation of immunological capacity; comparative study: 1. immunological tolerance; 2. role of macrophages in antibody synthesis and immunological maturation. Mus musculus (Rodentia) b Cellular interaction during immune response. Mus musculus (Rodentia) ARGYRIS, Th. S. Ph.D., Prof. - Dept. of Biol., Syracuse Univ., 130 College Place, SYRA- CUSE, N.Y. 13210, U.S.A. • a Regeneration and the control of growth of adult organs: 1. mechanism of hair growth stimulation in wound healing; 2. mechanism of cellular proliferation produced by damage in adult liver and kidney. (Mammalia) b Functional hypertrophy and the control of growth of adult organs: 1. mechanism of kidney growth following unilateral nephrectomy; 2. role of plasma proteins in liver growth. (Mammalia) c Stimulation of adult organs and tissues by tumors; growth promoting effects of Ehrlich ascites tumor, S-180, on skin, mammary gland, liver, and kidney (Mammalia) d Induction of drug metabolizing enzymes and liver growth by phenobarbital and 3-methyl- cholanthrene. Mus musculus, Rattus norvegicus (Rodentia) ARIENS KAPPERS, J. M.D., Prof. — Netherl. Centr. Inst, for Brain Research, IJdijk 28, AMSTERDAM-O., Netherlands • ARIMA, Sh. D.Agr., Prof. — Lab. of Anim. Morphol., Biol. Inst, Nara Women's Univ., Kitauoya-Nishi-Machi, NARA, Japan a Studies on the end-products of metabolism in the embryo and the tadpole. Rhacophorus schlegelii var. arborea (Anura) b Effects of mammalian prolactin on the growth and the nitrogenous excretion of tadpoles. Same species as a ARKING, R. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Production and analysis of chemically induced conditional lethal mutations affecting metamorphic processes, i.e., both neuroendocrine system and reacting systems. Drosophila melanogaster (Diptera) b Effects of the eyeless-Dominant mutant on the neuroendocrine system and the eye imaginal discs during early larval development. Same species as a ARMSTRONG, Ph. B. M.D., Prof. ~ Dept. of Anat.. Upstate Med. Centre, State Univ. of New York, 766 Irving Ave., SYRACUSE, N.Y. 13210, U.S.A. a Behavioral responses in developing embryos. Ameiurus nebulosus (Teleostei) , Amby stoma punctatum (Urodela) b Embryonic physiological encephalization and its neuroanatomical correlates. Ictalurus nebulosus, Opsanus tau (Teleostei) ARNOLD, J. M. Ph.D., Prof. ~ Kewalo Lab., Pacific Biomed. Research Center, Univ. of Hawaii, 2538 The Mall, HONOLULU. Hawaii 96822, U.S.A. a Studies on the egg cortex (histochemistry, electron microscopy, centrifugation). Loligo pealii (Decapoda), Octopus spec. (Octopoda, Cephalopoda) b Studies on the developmental fine structure of the eye-lens. Same species as a c Studies on the formation of the blastoderm and cleavage. (Cephalopoda) ARNOLD, Miss J. M. M.Sc. ~ Zool. Dept.. Univ. of W.Australia. NEDLANDS, W. Austra- lia 6009, Australia ARNOLDS, W. J. A. M.Sc. - Zool. Lab., State Univ. of Utrecht, Janskerkhof 3. UTRECHT. Netherlands 11 a Investigation of albumen uptake in embryos by means of immunofluorescent tracing of albumen proteins. Lymnaea stagnalis (Gastropoda) ARONSSON, St. B. Cand.phil. — Inst, of Zool., Univ. of Gothenburg, Facie, S-400 33 GOTHENBURG 33, Sweden a Ontogenetic appearance of the monoaminergic nerves in the median eminence. Rana temporaria (Anura) ARORA, H. L. Ph.D. — Inst, of Biol, and Zool., Univ. of Sassari, SASSARI, Sardegna, Italy • ARRU, Miss A. Dr. -— 1st. di Zool., Univ. di Sassari, Via Murroni 25, 07100 SASSARI, Italy a Gonadogenesis. Ccenilabrus spec. (Labridae), Syngnathus spec. (Syngnathilormes, Te- leostei) ARVIDSSON-FERNHOLM, Mrs. E. M. I. Fil.mag. — Inst, of Zool., Univ. of Gothenburg, Fack, S-400 33 GOTHENBURG 33, Sweden a Appearance of monoamines in the embryonic sympathetic chain, adrenal medulla, and organ of Zuckerkandl (formaldehyd fluorescence). Mus musculus (Rodentia) ASAKURA, K. ~ Biol. Inst., Fac. of Sci., Univ. of Kanazawa, Marunouchi-1, KANAZAWA, Japan a Development and regeneration of scales. Oryzias latipes, Carassius auratus and other spp. (Teleostei) ASAMI, K. Ph.D. — Div. of Biol., Natl. Inst, of Radiol. Sci., 9-1, 4-chome, Anagawa, CHIBA, 280 Japan a Changes in egg energy metabolism at fertilization. Anthocidaris crassispina, Hemicentrotus pulcherrimus (Echinoidea) b Cytochromes in the liver during development. Rattus norvegicus (Rodentia) ASAYAMA, S. Prof.(Emer.) — Lab. of Embryol., Fac. of Sci., Osaka City Univ., 459 Sugimoto-cho, Sumiyoshi-ku, OSAKA, Japan a Sex development. (Vertebrata) ASHBY, K. R. Ph.D. ~- Dept. of Zool., Univ. of Durham, South Rd., DURHAM, England a The development of the reproductive system, and the modifications induced by treatment with steroid hormones during the course of sexual differentiation. Salmo irideus, S. trutta (Teleostei) ASHHURST, Miss D. E. D.Phil. — Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a Development of connective tissue in the pupa: site of polymerization of collagen molecules (using labelled proline) . Gatleria mellonella ( Lepidoptera) b Autoradiography of collagen synthesis. Locusta migratoria (Orthoptera) ASHWORTH, J. M. Dr. — Dept. of Biochem., Leicester Univ., LEICESTER LE 7RH, Eng- land • ASLING, C. W. M.D., Ph.D., Prof. — Dept. of Anat., Sch. of Med., Univ. of California, SAN FRANCISCO, Calif. 94122, U.S.A. ASNANI, Miss M. M.Sc. — Dept. of Zool., Fac. of Sci., Univ. of Baroda, BARODA-2, India a Liver, spleen and lymph gland regeneration. (Reptilia; Aves) ASTAUROV, B. L. Dr.biol.sci., Prof. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. • a Artificial parthenogenesis and experimental polyploidy. Bombyx mod (Lepidoptera) b Overcoming male sterility in the allotetraploid bisexual strain. Bombyx movi, B. mandarina (Lepidoptera) c Genetic variability in the ability to complete artificial parthenogenesis and selection by this character. Same species as b ATHERTON R. W. Ph.D. — Dept. of Zool.-Physiol., Univ. of Wyoming, Univ. Station Box 3166, LARAMIE, Wyo. 82070, U.S.A. a Developmental enzymology of erythrocytes and serum. Gallus domesticus (Aves), Mus musculus (Rodentia) b Embryonic and adult hemoglobin synthesis. Gallus domesticus (Aves), Mus musculus (Rodentia) c Isozyme fractionation and characterization of multiple forms of proteins during develop- ment (cholinesterase). Gallus domesticus (Aves), Mus musculus (Rodentia) AUCLAIR, W. Ph.D., Prof. — Dept. of Biol., Rensselaer Polytechn. Inst., TROY, NY. 12181, U.S.A. AUERBACH, R. Ph.D., Prof. — Dept. of Zool., Univ. of Wisconsin, 1117 West Johnson St., MADISON, Wis. 53706, U.S.A. • AUERSPERG, N. M.D., Ph.D., Prof. ~ Dept. of Zool., Univ. of British Columbia, VAN- COUVER 8, B.C., Canada a Interaction of cellular and environmental factors in tumor histogenesis in vitro. Homo sapiens (Primates) AUGSTEN, H. Dr.habil., Prof. — Sekt. Biol.-Pflanzenphysiol., Friedrich-Schiller Univ., von- Hase-Weg 3, 69 JENA, East.Germany AUGUSTI (TOCCO), Mrs. G. Dr. ~- Lab. di Embriol. Molec, Via Toiano 2. 80072 ARCO FELICE, Napoli, Italy • 12 AUROUX, M. Dr.en Med. ~ Lab. d'Histol.-Embryol. A, Fac. de Med., 45 rue des Sts. Peres, 75 PARIS Vie. France . a Developpement normal et anormal de l'encephale. Rattus rattus (Rodentia), Homo sapiens (Primates) b Perturbations tardives du systeme nerveux central compatibles avec la vie (baisse de la capacite d'apprentissage). Rattus norvegicus (Rodentia) c Influence de la nutrition de la mere sur le developpement du systeme nerveux central de la progeniture; amelioration de la capacite d' apprentissage de la progeniture. Rattus rattus (Rodentia) AUSTIN, C. R. D.Sc. — Marshall Lab., Dept. of Physiol., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3EG, England • a Investigations on gametes, fertilization and early development. Rattus spec, Mus musculus, Mesocricetus auratus (Rodentia), Oryctolagus cuniculus (Lagomorpha) b Induced and spontaneous anomalies of development. Same species as a AVIVI, Y. M.S. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL-AVIV, Israel a Transformation of histones to protamines during spermatogenesis. Tilapia spec. (Cichlidae, Teleostei) AXELROD, L. R. Ph.D. — Div. of Biol., Growth, and Developm., Southwest Found, for Res. and Educ, P.O.Box 28147, SAN ANTONIO, Tex. 78228, U.S.A. AYKAC, I. D.V.M., Prof. — Inst, of Histol. and Embryol., Med. Fac, Ataturk Univ., ERZU- RUM, Turkey (no embryological work in progress) AZAR (GEALIJA), Mrs. I. M.Sc ~ Dept. of Zool., Hebrew Univ. of Jerusalem, JERU- SALEM, Israel a Autoradiography of cell migrations between epiblast and hypoblast, and their possible role in embryonic differentiation. (Aves) AZOUBEL, R. M.D., Ph.D. ~ Dept. de Morfol. Hum. Funct. e Aplic, Univ. de Sao Paulo, C.P. 301, RIBEIRAO PRfiTO, S.P., Brazil BABA, S. D.Sc ~ Dept. of Bot, Fac of Sci., Kyoto Univ., KYOTO, Japan 606 a Pre-pattern phenomenon of localization of enzymatic activity prior to the formation of wound vessel member. Coleus blumei (Labiatae) (with L. W. ROBERTS) b Effect of environment on morphogenesis of vascular elements. Coleus blumei (Labiatae) (with L. W. ROBERTS) BABAYEVA, Mrs. A. G. Dr.med.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a The immunological mechanisms controlling the processes of compensatory hypertrophy and regeneration of parenchymal organs. Mus musculus, Rattus norvegicus (Rodentia) BACHOP, W. E. Ph.D. — Dept. of Zool., Clemson Univ., CLEMSON, S.C. 29631, U.S.A. a Histochemistry of giant nuclei in yolk sac syncytium. Esox lucius (Teleostei) b Biochemical and ultrastructural parameters of mitochondrial differentiation in respiratory- deficient mutants. Sacchacomyces cerevisiae (Saccharomycetales) BACKHOUSE, K. M. VRD — Royal Coll. of Surgeons of England, Lincoln's Inn Fields, LONDON WC2A 3PN, England a Gubernaculum testis and testicular descent. Hapale jacchus, Macaca mulatta, Homo sapiens (Primates) BACKHOUSE, Miss M. B.Sc ~ Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England a Cell junctions in the embryo. Gallus domesticus (Aves) b Cell migration in the embryo. Gallus domesticus (Aves) (with M. R. BELLAIRS) BACKSTROM, S. A. A. Fil.Dr. ~ Wenner-Gren Inst., Norrtullsgatan 16, S-113 45 STOCK- HOLM, Sweden a Basic proteins during oogenesis and early development (biochemistry, histochemistry, autoradiography). Paracentrotus lividus, Psammechinus miliaris (Echinoidea) BADRAN, A. F. M.D. ~ Inst, de Embriol., Biol, e Histol., Fac. de Cienc. Med., Univ. Nac de La Plata, 60 y 120, LA PLATA, Argentina a Analysis of growth control (tissue and humoral factors) of liver tissue in ontogenetic, regenerative, and neoplastic growth. Mus musculus (Rodentia) b Ultrastructure of the pars distalis of the hypophysis in animals bearing hepatomas. Mus musculus (Rodentia) BAEVSKY, J. B. Cand.biol.sci. ~ Inst, of Anim. Evolut. Morphol. and Ecol., Acad, of Sci. of the U.S.S.R., Lenin Ave. 33, MOSCOW W-71, U.S.S.R. a Cytology of embryonic retardation and activation. (Carnivora, Insectivora, Rodentia) b State of maternal endocrine glands during embryonic diapause and activation. (Carnivora, Insectivora, Rodentia) BAFFONI, G. M. Dr.Biol.Sci., Prof. — 1st. di Anat. Comp., Univ. di Modena, Via Berengario 14, 41100 MODENA, Italy a Growth and differentiation of the nervous cell. (Cyclostomata; Teleostei; Amphibia; Aves; Mammalia) b Localisation of mitoses in the central nervous system: numerical variations of ventricular 13 and extraventricular mitoses in the normal development, regenerating nervous tissue and in thyroxinated tadpoles. Xenopus spec, Bufo spec. (Anura), Triturus spec. (Urodela) c Regeneration of nerve fibres during larval life. (Urodela) d Differentiation of epidermal and intestinal epithelia. (Annelida; Crustacea) BAGlfiSKI, S. M.D., Prof. (Emer.) — Narutowicza 94-9, EODz, Poland BAGLIONI, C. M.D., Prof. — Dept. of Biol., Massachusetts Inst, of Technol., CAMBRIDGE, Mass. 02139, U.S.A. • BAGNARA, J. T. Ph.D., Prof. — Dept. of Biol. Sci., Univ. of Arizona, TUCSON, Arizona 85721, U.S.A. • a Various aspects of the development and endocrinology of pigmentation. Many spp. (Amphibia) b Ultrastructure of chromatophores. Many spp. (Amphibia) c Developmental physiology of xanthophores, erythrophores, and iridophores. Many spp. (Amphibia) d Neural crest: pattern formation on dorsal surface. (Anura) BAKER, G. T. Ph.D. — Dept. of Physiol., Univ. of Miami Med. School, P.O. Box 875, Biscayne Annex, MIAMI, Florida 33152, U.S.A. a Age-dependent changes in enzymatic activities correlated with morphological and physio- logical manifestations of aging flight muscle. Musca domestica (Diptera) BAKER, J. R. Ph.D., Prof. — Dept. of Zool. and Entomol., Iowa State Univ., AMES, Iowa 50010, U.S.A. a Incorporation and transport of labeled metabolites by early stage blastoderms in vitro. Gallus domesticus (Galliformes) , Pygoscelis adelie (Spheniscidae, Aves) b Incubination physiology and growth rate of early embryonic stages. Pygoscelis adelie (Aves) c Comparative studies of yolk ultrastructure. Various spp. (Aves) BAKER, Mrs. P. C. Ph.D. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, U.S.A. a The ultrastructural morphology and histochemistry of cells undergoing morphogenetic movement. Hyla regilla, Rana pipiens, Xenopus laevis (Anura) b The ultrastructure of wound healing. Same species as a c Ultrastructure of skeletal myoblasts. Gallus domesticus (Aves) BAKER, R. F. Ph.D. — Dept. of Biol. Sci., Univ. of Southern California, University Park, LOS ANGELES, Calif. 90007, U.S.A. a Developmental genetics and regulation of macromolecular synthesis. (Echinoidea) BAKER, T. G. Ph.D. — Hormone Lab., Dept. of Obstet. and Gynaecol., Univ. of Edinburgh, Chalmers St., EDINBURGH 3, Scotland, U.K. a Oogenesis. (Primates) b The effects of X-rays on female germ cells. (Rodentia; Primates) c The fine structure and metabolic activity of oogonia and oocytes. (Rodentia; Primates) d Cytology and endocrinology of ovulation, fertilization, and early development in vitro. Rattus norvegicus, Mus musculus (Rodentia), Homo sapiens and other Primates e Structure and hormonal control of the placenta in organ culture. Homo sapiens (Primates) BAKER, W. K. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637, U.S.A. BAL, A. K. D.Phil. — Dept. of Biol., Memorial Univ. of Newfoundland, ST. JOHN'S, Nfld., Canada a Ultrastructure of cells in bulb root meristem: changes during differentiation, H3-thymidine autoradiography. Allium cepa (Liliaceae) b Oogenesis. Strong ylocentrotus drobachiensis (Echinoidea) BALAKRISHNAN, S. F.R.C.P., Prof. ~- Dept. of Anat., Jawaharlal Inst, of Postgrad. Med. Educ. and Research, PONDICHERRY-6, India a Assessment of gestational age of the new-born. Homo sapiens (Primates) BALINSKY, B. I. Dr.Biol.Sci., Prof. — Dept. of Zool., Univ. of the Witwatersrand, Milner Park, JOHANNESBURG, S.Africa • a Cytoplasmic control of differentiation. Bufo spec. (Anura) BALLARD, W. W. Ph.D., Prof. — Dept. of Biol. Sci., Dartmouth Coll., HANOVER, N.H. 03755, U.S.A. • a Morphogenetic movements in embryos. (Teleostei) b Monograph on developmental anatomy. Amby stoma spec. (Urodela) BALLS, M. D.Phil. — School of Biol. Sci., Univ. of East Anglia, University Plain, NOR- WICH, NOR 88C, England a Neoplasms particularly of lymphoid tissue. Xenopus laevis (Anura) b Control of cell division. Xenopus laevis (Anura), Amphiuma means, Triturus cristatus (Urodela) BALON, E. K. Ph.D. - Lab. of Fish. Res., Zelezna Studienka 806, BRATISLAVA, Czechoslo- BALTUS, Miss E. J. D.Sc. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des Chevaux, 1640 RHODE-ST-GENfiSE, Belgium • a Studies on DNA synthesis during oogenesis. (Amphibia) 14 b Evolution of cytoplasmic DNA during embryonic development. (Amphibia) BALTZER, F. Dr., Prof.(Emer.) — Zool. Inst., Univ. Bern, Sahlistr. 8, 3012 BERN, Switzerland • BAND, R. N. Ph.D., Prof. i- Dept. of Zool., Coll. of Nat. Sci., Michigan State Univ., EAST LANSING, Mich. 48823, U.S.A. a Mechanism of cell-to-cell adhesion. Acanthamoeba (— Mayoretla) palestinensis (Rhizopo* da) b Induction of amitosis in uninucleate cells leading to daughters with varying portions of the original nucleolus. Acanthamoeba (= Hartmannella) rhysodes (Rhizopoda) BANERJEE, B. Ph.D. ~ Dept. of Entomol., Tea Research Assoc, Tocklai Exper. Station, JORHAT-8, Assam, India a Caste development. Odontotermes redemanni (Isoptera) b Rhythmicity in development and role of extraneous factors on development. (Diplopoda) BARABANOV, V. M. Cand.biol.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Immunochemistry of eye lens, retina, and iris development. Gallus domesticus (Aves) BARASA, A. 1st. di Istol. ed Embriol. Gener., Via Nizza 52, 10126 TORINO, Italy a Morphogenetic processes of the wing following removal of some parts. Gallus domesticus (Aves) b Effect of subnormal temperatures on mitosis of cells cultured in vitro. (Aves) c Mitoses of binucleate cells. (Aves) d Effect of mitostatic agents on nerve fibres growing in vitro. (Aves) BARBAGALLO (PATTI), Mrs. J. Dr. ~- 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 CATANIA, Italy a Physiological and experimental embryology of the earliest developmental stages. Porcellio laevis (Isopoda) BARBIERI, F. D. Dr.Biochem., Prof. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S. M. de TUCUMAN, Argentina a Chemical factors involved in fertilization: jelly coats and diffusible factor. Bufo avenarum (Anura) BARBOSA AYUCAR, E. Dr. en Med. — Serv. de Embriol. Exper., Cat. de Anat, Univ. de Valladolid, VALLADOLID, Spain a Effect of puromycin on morphogenesis. Gallus domesticus (Aves) BARCH, Mrs. S. H. Ph.D. — Zool. Dept., Biol. Research Center, Michigan State Univ., EAST LANSING, Mich. 48823, U.S.A. a Interaction of sperm and egg substances. Rana pipiens (Anua) b Nature of antibody effects on fertilization. Rana pipiens (Anura) BARGMAN, G. M.D. — Central Lab. for Human Embryol., Dept. of Pediat., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Electron transport enzyme system in developing embryos and achondroplastic cartilage, b Karyotyping of defects. Homo sapiens (Primates) BARIGOZZI, C. Dr.Sci., Prof. - 1st. di Genet., Univ. di Milano, Via Celoria 10, 20133 MILANO, Italy • a DNA replication in cells cultured in vitro. Drosophila melanogaster (Diptera) b Biology of established cell lines. Drosophila spec. (Diptera) BARNARD, P. B. T. Fil.Dr. - Wenner-Gren Inst., Norrtullsgatan 16, S-113 45 STOCK- HOLM, Sweden a Ultrastructural and chemical differentiation of brown adipose tissue in pre- and neonatal animals, especially mitochondrial changes. Rattus norvegicus (Rodentia) BARR. H. J. Ph.D. — Dept. of Anat., Bardeen Med. Labs., Univ. of Wisconsin, MADISON, Wis. 53706, U.S.A. • a Developmental and cytogenetics including nucleolar cytology, chromosome replication patterns, quinacrine staining and position effect variegation. Drosophila spec. (Diptera) BARSACCHI, Miss G. Dr.Biol.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, Italy a In vitro induction of oocyte maturation by hormones. Triturus spp. (Utodela) b RNA/DNA cytological hybridization on lampbrush chromosomes. Same species as a BARSON, A. J. M.D. — Dept. of Pathol., Univ. of Manchester, Williamson Bldg., Bruns- wick St., MANCHESTER M13 9PL, England a Craniospinal dysraphia produced by rabbit antibodies to chick nervous tissue. Gallus domesticus (Aves) b Postnatal segmental growth rates of spinal cord and vertebral column relative to each other. Homo sapiens (Primates) BART, A. — Serv. de Biol. Anim., Univ. des Sci. et Techn. de Lille, B.P. 36, 59 VILLENEU- VE-D'ASCQ, France • a Morphogenesis and regeneration. Carausius morosus (Phasmida) BARTELS, P. G. Prof. ~ Dept. of Biol. Sci., Univ. of Arizona, TUCSON, Ariz. 85721, U.S.A. • BARTH, L. G. Ph.D., Prof. — Marine Biol. Lab., Box 27, WOODS HOLE, Mass. 02543, U.S.A. • 15 BARTH, Mrs. L. J. Ph.D. - Marine Biol. Lab., Box 27, WOODS HOLE, Mass. 02543, U.S.A. • BARTH, R. H., Jr. Ph.D. — Dept. of Zool., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. a Physiology of reproduction: role of corpora allata and neurosecretory system in control of reproductive behavior and physiology, and regulation of the reproductive cycle of the female. Byrsotria fumigata, Leucophaea maderae, Nauphoeta cinerea and other spp. (Blattariae) BARTKE, A. Ph.D. — Worcester Found, for Exper. Biol., 222 Maple Ave., SHREWSBURY, Mass. 01545, U.S.A. BARTOS, F. RNDr., C.Sc, Prof. — Dept. of Biol., Charles Univ., Simkova 870, HRADEC KRALOVE, Czechoslovakia BATTLE, Miss H. I. Ph.D., Prof. *- Dept. of Zool., Coll. of Sci., Univ. of W.Ontario, LON- DON 72, Ont., Canada BAUR, R. Dr. — Abt. Anat., Med. Fak., Rhein.-Westf. Techn. Hochschule, Alter Maastrichter Weg 1, 51 AACHEN, W.Germany a Morphometry of placenta; comparison of placental villous surface with volume of fetus and placenta during pregnancy. Felis domesticus, Sus domesticus, Bos taurus. Homo sapiens and other species (Mammalia) BAUTZ (PORTMANN), Mrs. A.-M. Lic.es Sci. — Lab. de Zool. 2e cycle, Boulevard des Aiguillettes, 54 NANCY, France a Les cellules larvaires et imaginales dans le developpement de l'abdomen. Calliphora ery- throcephala. (Diptera) b Effet des rayons X sur la regeneration. Nereis diversicolor (Polychaeta) BAVEJA, Miss R. M.S. — Dept. of Obstet. and Gynecol., M.L.N. Med. Coll., Univ. of Alla- habad, ALLAHABAD- 1, India a Role of endometrium and extraplacental membranes in the fetomaternal exchange process (histo- and cytochemistry). Homo sapiens (Primates) (with H. C. VARMA) BAXTER, E. W. Ph.D. ~- Biol. Dept., Guy's Hosp. Med. School, LONDON S.E.I, England a Biology, including development and metamorphosis. Petromyzon spec. (Cyclostomata) b Food changes during larval period of growth. Ammocoetes (Cyclostomata) c Uptake and fate of thorotrast. Ammocoetes (Cyclostomata) BEAMS, H. W. Ph.D., Prof. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA- CITY, Iowa 52240, U.S.A. a Synthesis and deposition of yolk. Salmo gairdneri (Teleostei) b Electron microscopy of spermiogenesis. Rhabditis pellio (Nematoda) c The effects of ultracentrifugation in dividing cells. BEATTY, R. A. Ph.D., F.R.S.E. ~ Dept. of Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. • a Breeding of genetically tagged strains for use in developmental biology. Oryctolagus cuniculus (Lagomorpha) b Developmental biology and genetics of gametes. Drosophila spp. (Diptera), Mus musculus (Rodentia) , Oryctolagus cuniculus (Lagomorpha), Homo sapiens (Primates) BEAUMONT, A. Dr.es Sci., Prof. — Lab. d'Anat. Comp., Fac. des Sci. d'Orsay, Univ. de Paris, Bailment 441, 91 ORSAY, France BEAUMONT, Miss H. M. Ph.D. ~ Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15, 2TJ, England a Spontaneous and radiation-induced atresia of oocytes, especially developmental capacity of oocytes from aged, superovulated and irradiated animals. (Rodentia) BEAUPAIN (CREPY) , Mrs. D. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Localisation et apparition de la hypoxanthine deshydrogenase dans differents organs de l'embryon. Gallus domesticus (Aves) b La differenciation chimique du pancreas de l'embryon. Gallus domesticus (Aves) (avec F. DIETERLEN) BEAUPAIN, R. Drs. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Effets des rayons X sur la survie et sur la synthese d'ADN des nodules cancereux en culture organotypique de longue duree. Homo sapiens (Primates) BEBBINGTON, A. M.Sc, M.I.Biol. — Dept. of Zool., Univ. of Bristol, BRISTOL BS8 1UG, England BECK, F. M.D., Prof. - Dept. of Anat., London Hosp. Med. Coll., Turner St., LONDON E.l, England • a The effect of trypan blue on development. Rattus spec. (Rodentia), Mustela putorius furo (Carnivora) b Embryonic nutrition. Same species as a c The postnatal maturation of intestinal epithelium. Rattus spec, Cavia cobaya (Rodentia), Oryctolagus cuniculus (Lagomorpha) , Mustela putorius {uro (Carnivora) BECKER, H. J. Ph.D., Prof. -Zool. Inst, der Univ., Luisenstr. 14, 8000 MUNCHEN 2. W.Germany • 16 BECKER, V. Dr.med., Prof. — Pathol. Inst, der Freien Univ. Berlin, Klin. Westend, Span- dauer Damm 130, 1 BERLIN 19, W.Germany a General and special pathology of placenta. (Mammalia) BEERMANN, W. Dr.rer.nat, Prof. — Max Planck Inst, fur Biol., Spemannstr. 34, 74 TU- BINGEN, W.Germany BEETSCHEN, J. C. Dr.es Sci., Prof. — Lab. de Biol. Gener., Univ. Paul-Sabatier, 118 Route de Narbonne, 31 TOULOUSE 04, France • a Experiments on the differentiation of cultured embryonic cells. (Urodela) (with A M DUPRAT) b The recessive semi-lethal factor ac: temperature-sensitivity of homozygous mutants; maternal effect in the progeny of mutant females. Pleurodeles waltlii (Urodela) c Genetical aspects of protein differentiation in embryonic stages. Same species as b (with F. GASSER) BEHRMAN, S. J. M.D., Prof. — Dept. of Obstet. and Gynecol., Center for Research in Reprod. Biol., Univ. of Michigan Med. School, 202 Women's Hosp., ANN ARBOR, Mich. 48104, U.S.A. a Antigenicity of the trophoblast. Oryctolagus cuniculus (Lagomorpha) , Mus musculus (Rodentia) , (Primates) b Sperm antibodies. Homo sapiens (Primates) BEIDERBECK, R. Dr. — Bot. Inst., Univ. Heidelberg, Hofmeisterweg 4, 69 HEIDELBERG, W.Germany a Crown gall induction; tumor-inducing-principle. Bryophyllum daigremontianum, and other species ( Angiospermae) BEIER, H. M. Dr.rer.nat. — Anat. Inst., Univ. Marburg, Robert-Koch-Str. 6, 355 MARBURG/ Lahn, W.Germany a Experimental developmental morphology of preimplantation stages, postimplantation stages and their endocrinological developmental control. Oryctolagus cuniculus (Lagomorpha), Cavia porcellus, Rattus spec. (Rodentia) b Specific uterine proteins (e.g. uteroglobin) and their hormonal controlled interference with blastocyst development. Oryctolagus cuniculus (Lagomorpha), Homo sapiens (Primates) BEINBRECH, G. Dr. — Inst, fur Zellphysiol., Abt. fiir Biol., Ruhr Univ., Buscheystr., Post- fach 2148, 463 BOCHUM. W.Germany a Development of muscles during metamorphosis: formation of the myofibrils and of the sarcotubular system. Phormia regina (Diptera) b Formation of contractile myofibrils in asynchronous indirect flight muscles during meta- morphosis. Phormia terrae-novae (Diptera) BELKA (GRZYBEK) , Mrs. A. Ph.D. — Dept. of Gen. Biol., Silesian Acad, of Med., K.Marksa 19, Rokitnica, ZABRZE 8, Poland BELL, E. Ph.D., Prof. — Dept. of Biol., Massachusetts Inst, of Technol., 77 Massachusetts Ave., CAMBRIDGE, Mass. 02139, U.S.A. • a Information transfer and regulation between nucleus and cytoplasm in differentiating cells. Gallus domesticus (Aves), Mus musculus (Rodentia) b Regulation of macromolecular synthesis in the developing lens. Gallus domesticus (Aves) BELL, L. G. E. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON S09 5NH, England a Membrane mediated control of cell behaviour, especially movement. (Amoeba proteus) (Rhizopoda) b The changing relationship between nucleus and cytoplasm during the cell cycle. (Amoeba proteus) (Rhizopoda) BELLAIRS, A. d'A. D.Sc, Prof. — Dept. of Anat., St. Mary's Hosp. Med. School, Padding- ton, LONDON W.2, England a Morphogenesis of skeleton. (Reptilia; Aves; Mammalia) b Embryonic membranes. (Reptilia) c Regeneration. (Reptilia) BELLAIRS, Mrs. M. R. Ph.D. ~- Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England • a Electron microscopy and histochemistry of yolk formation. Gallus domesticus (Aves) (with M. A. ENGLAND, Royal Free Hosp.) b Cell migration within the embryo. Gallus domesticus (Aves) (with M. BACKHOUSE) BELL WARE, F. T. B.Sc. - Dept. of Zool., Coll. of Sci., Univ. of W.Ontario, LONDON 72, Ont, Canada BELOUSOV, L. V. Cand.biol.sci. — Chair of Embryol., Biol. Fac, State Univ. of Moscow, Lenin Hills, MOSCOW B-234, U.S.S.R. a Spatial distribution and physical nature of the forces involved in shaping of epithelial layers. Obelia spec, Dynamena spec. (Hydvozoa; Amphibia) b Metabolic gradients, their physico-chemical nature and interrelations with morphogenetic processes (development of planula, budding). Obelia spec, Hydra spec. (Hydrozoa; Echinodermata) BENAZZI (LENTATI), Mrs. G. Prof. ~- 1st. di Zool. e Anat. comp. dell'Univ., Via A. Volta 4, 56100 PISA, Italy 17 a Chromosome cycles in amphigonic and pseudogamous biotypes: determinism of pseudo- gamy and polyploidy. (Tricladidea, Turbellaria) «,«« BENAZZI, M. Prof. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, a Asexual reproduction, pseudogamy, polyploidy and heredity. (Tricladidea, Turbellaria) BENDER, H. A. Ph.D., Prof. — Dept. of Biol., Univ. of Notre Dame, NOTRE DAME, Ind. " 46556,' U.S.A. a Phenogenetic studies of the ovarian tissue of female-sterile mutants. Drosophila melano- gaster (Diptera) b Physiological genetics. Drosophila melanog aster (Diptera) c Genetics. Coelopa frigida (Diptera) BENESCH, R. Dr.rer.nat. — I. Zool. Inst., Friedrich-Alexander Univ., Universitatsstr. iy, " 852 ERLANGEN, W.Germany a Development. Triops cancciformis (Notostraca, Crustacea) BENIRSCHKE, K. M.D., Prof. — Dept. of Obstet. and Gynecol., Univ. of California San " Diego, LA JOLLA, Calif. 92037, U.S.A. BENNETT, D. Dr., Prof. — Dept. of Anat., Med. Coll., Cornell Univ., 1300 York Ave., NEW " YORK.N.Y. 10021, U.S.A. a Effects of mutant genes on embryonic development. Mus musculus (Rodentia) b Cell surface antigens in spermatogenesis and embryonic development. Mus musculus (Ro- BENOIT, J. A. A. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Etude in vitro de l'embryon. Mus musculus (Rodentia) b Etude experimentale in vitro de la gastrula. Mus musculus (Rodentia) ■ BENTYN K. M.D. — Lab. of Embryol., Dept. of Obstet. and Gynecol. II, Med. School, " ul.Karowa 2, WARSZAWA 40, Poland a Nutrition mechanisms of preimplantation stages; the concentration of free amino acids in uterine secretion, blastocyst fluid, and blood serum; effect of steroid hormones on bio- chemical composition of uterine secretion. Rattus spec. (Rodentia), Oryctolagus cuniculus (Lagomorpha) BENZIE (BURROWS), Mrs. V. L. Dr.phil. — Dept. of Zool., Univ. of Canterbury, Private Bag, CHRISTCHURCH, New Zealand a Descriptive embryology. Galaxias spp. (Teleostei) BENZO C A. Ph.D. — Dept. of Anat., Upstate Med. Centre, State Univ. of New York, 766 Irving Ave., SYRACUSE, N.Y. 13210 U.S.A. a Development and control of glycogen metabolism in embryonic and neonatal liver. Callus domesticus (Aves) b The role of hormones in the ultrastructural and biochemical development of embryonic liver in organ culture. Gallus domesticus (Aves) BER A M D., M.V.D., Prof. — Endocrinol. Unit of the Rogoff- Wellcome Med. Research Inst, Beilinson Hosp., PETAH-TIKVA, Israel a Development of eye reaction to vitamin Bl. Hyla spec, Bufo spec, Pelobates spec. (Anura) b Histone content of developing ovaries. Bos taurus (Artiodactyla) BEREITER-HAHN, J. Dr.phil.nat. — Inst, fur Kinemat. Zellforsch. der Univ., Senckenberg- anlage 27, 6000 FRANKFURT/M., W.Germany a Variation of dry mass/water ratio in different parts of the egg from fertilization through first cleavage (interference microscopy). Psammechinus miliaris (Echinoidea) b Electron microscopy of pigment granule formation in melanophores. Pterophyllum scalare (Cichlidae) , Lebistes reticulatus (Poeciliidae, Teleostei) c Hormonal induction of keratinization in epidermal cells in tissues culture (time-lapse cinemicrography, histochemistry, electron microscopy). Same species as b d Effects of cytochalasin B on motility and structure of tonofilaments in epidermal cells in tissue culture. Same species as b BERENDES, H. D. Dr., Prof. — Zool. Lab., Dept. of Cell Biol., Univ. van Nijmegen, Drie- huizerweg 200, NIJMEGEN, Netherlands • a Induction and repression of puff activity in polytene chromosomes. Drosophila spp. (Dip- tera) b Gene function and differentiation in salivary gland cells. Dcosophila spp. (Diptera) c Hormonal regulation of postembryonic development. (Diptera) BERENDSEN, W. Ph.D. — Biol. Ultrastruct. Res. Unit, State Univ. of Utrecht, Sorbonne- laan 4, Universiteitscentrum "De Uithof", UTRECHT, Netherlands BERESFORD, W. A. D.Phil., Prof. — Dept. of Anat., Med. Center, West Virginia Univ., MORGANTOWN, WVa. 26506, U.S.A. a The influence of hypervitaminosis A on the developing temporo-mandibular joint. Rattus norvegicus (Rodentia) b Fracture healing in the os priapi and mandible, and its response to castration or the administration of anabolic androgenic hormone. Same species as a BERG W. E. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, U.S.A. • 18 BERGER, J. D. Ph.D. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a Nuclear differentiation, RNA synthesis and gene expression. Paramaecium aurelia (Ciliata) BERGERARD, J. Dr.es Sci., Prof. ~- Lab. de Zool., Centre d'Orsay, Univ. Paris-Sud 91 ORSAY, France a Effects of thermal stress on sexual differentiation. Carausius morosus (Phasmida) b Effects of thermal stress and supernumerary chromosomes on development. Locusta migra- toria (Orthoptera) BERGQUIST, H. Ph.D. — Inst, of Zool., Univ. of Gothenburg, Fack, S-400 33 GOTHEN- BURG 33, Sweden . a Electron microscopy of neural tube. Gallus domesticus (Aves) b Experimental ontogenesis of the central nervous system. Same species as a BERLYN, G. P. Ph.D., Prof. - Sch. of Forest., Yale Univ., 205 Prospect St., NEW HAVEN Conn. 06511, U.S.A. BERNARD, C. Lic.es Sci., M.A. — Lab. de Physiol. Anim., Fac. des Sci., 40 av. du Recteur Pineau, 86 POITIERS, France a Electrophysiology of the embryonic heart. Rattus norvegicus, Cavia porcellus (Rodentia) BERNARD, F. Lic.es Sci. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med de Grenoble, Cedex 53, 38 GRENOBLE, France a Histogenesis and morphogenesis of the digestive tract. (Teleostei) BERNDORFER, A. Dr.med.habil. — Childrens Hosp. "Paul Heim", Dept. for Congenital Malformations, Olloi ut 86, BUDAPEST VIII, Hungary ^- Private address: Benczur utca 39/a, BUDAPEST VI, Hungary a Clinical embryopathology. b Intrauterine regenerations of congenital malformations, c Biological study of malformations, d Etiology of malformations from clinical viewpoints. BERNFIELD, M. R. M.D., Prof. ~ Dept. of Pediat, Stanford Univ., 300 Pasteur Drive, STANFORD, Calif. 94305, U.S.A. a Embryonic epithelia: synthesis of macromolecules (collagen, mucopolysaccharide, RNA, enzymes) during inductive interactions in vitro. Mus musculus (Rodentia) b Morphogenetic role of extracellular materials (collagen, mucopolysaccharide) during in vitro development of salivary submandibular epithelia. Same species as a c Translation level controls (tRNA, ribosomes) during embryonic and hormonal-induced development. Gallus domesticus (Aves) BERNS, M. W. Ph.D. ~ Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Intercellular communication in embryonic and adult heart cells in tissue culture: mitochondria are altered by laser microbeam and functional cell responses are studied. Rattus spec. (Rodentia) BERREUR (BONNENFANT) , Mrs. J. Dr.es Sci. ~ Lab. de Genet. Evol. et de Biomet., C.N.R.S., 91 GIF-sur-YVETTE, France BERRILL, N. J. Ph.D. — 410 Swarthmore Ave., SWARTHMORE, Pa. 19081, U.S.A. • a Regeneration; metamorphosis; asexual reproduction (histogenesis). Campanularia [lexuosa, Obelia geniculata (Campanulacidae, Hydrozoa), Branchiomma (— Dasychone) nigroma- culata, Sabella melanostigma (Sabellidae, Polychaeta) BERRY, M. Ph.D. — Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a Effects of X-irradiation on central nervous development. Rattus spec. (Rodentia) b Development of cerebral and cerebellar cortex. Rattus spec. (Rodentia) BERRY, S. J. Ph.D. — Dept. of Biol., Wesleyan Univ., MIDDLETOWN, Conn. 06457, U.S.A. a Nucleic acid metabolism during differentiation (ultracentrifugation, gradient centrifugation, autoradiography, chromatography). Hyalophora cecvopia (Lepidoptera) b Endocrine control of differentiation (light and electron microscopy, autoradiography, organ culture) . (Saturniidae, Lepidoptera) c RNA synthesis during oogenesis (autoradiography, electron microscopy, gradient centri- fugation) . Various spp. (Lepidoptera) d Protein synthesis in specialized organs (autoradiography, electron microscopy, gradient centrifugation) . Hyalophora cecvopia (Lepidoptera) BERTALANFFY, F. D. Ph.D., Prof. ~~ Dept. of Anat., Univ. of Manitoba, 750 Bannatyne Ave., WINNIPEG 3, Man., Canada a Rates of cell division of neoplastic populations. Rattus rattus, Mus musculus (Rodentia) b Mitotic rates of regenerating liver parenchyma. Rattus rattus (Rodentia) c Cell renewal and cytodynamics of normal cell populations. Rattus rattus (Rodentia) d Effects of cytosine arabinoside on cell development and proliferation. Rattus rattus (Ro' dentia) BERTMAR, G. Ph.D. — Sect, of Ecol. Zool., Dept. of Biol., Univ. of Umea, 90187 UMEA, Sweden a Experimental developmental morphology of the olfactory organ. Salmo spec. (Teleostei) 19 b Developmental morphology of the epibranchial organs. Coregonus spec. (Coregonidae) Clupea spec. (Clupeidae), Citharinus spec. (Characidae, Teleostei) BERTOLANI, R. Dr.Biol.Sci. — 1st. di Anat. Comp., Univ. di Modena, Via Berengario 14, 41100 MODENA, Italy a Sex ratio and karyology in parthenogenetic and amphigonic species. Maccobiotus richtersi, M. hufelandii, M. aureolatus (Tardigrada) BERTOLINI, B. Dr.Biol.Sci. — 1st. di Anat. Comp. "Battista Grassi", Univ. di Roma, Via A. Borelli 50, 00161 ROMA, Italy a Fibrous protein structures in developing nerve fibres. Lampetra spec. (Cyclostomata), Gallus domesticus (Aves) BERTON (PECHEUX), Mrs. F. Doct. 3eme cycle — Centre de Biol., Fond. Hersent- Luzarche, Univ. de Tours, 36 AZAY-LE-FERRON, France a Enzymology of fetal kidney after unilateral nephrectomy. Cavia porcellas (Rodentia) BERTON, J. P. Dr. — Centre de Biol., Fond. Hersent-Luzarche, Univ. de Tours, 36 AZAY- LE-FERRON, France — Centre de Rech. Vet. et Zootechn., Lab. de Physiol, de la Reprod., (INRA), 37 NOUZILLY, France a Role of mesonephros and metanephros in composition of amniotic and allantoic fluids (vascular anatomy and intra-uterine surgery). Ovis aries, Sus scrofa (Artiodactyla), Oryctolagus cuniculus (Lagomorpha) b Chorio-allantoic cell structure. Same species as a c Hypertrophic compensatory response of fetal kidney to unilateral nephrectomy in vivo. Same species as a d Development of fetal lung after tracheal ligation or nephrectomy in vivo. Same species as a e Effects of bilateral nephrectomy (oligohydramnios, survival etc.). Same species as a f Upper digestive tract as a source of amniotic fluid. Ovis aries (Artiodactyla), Oryctolagus cuniculus (Lagomorpha) g Hydric metabolism of the fetus and corticosteroid placental transfer. Same species as f h Declenchement de la mise bas. Orn's aries, Sus scrofa (Artiodactyla) BETCHAKU, T. D.Sc. ~ Dept. of Biol., Osborn Memorial Labs, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. a Cellular mechanism of formation of the regeneration blastema (tissue culture, time-lapse cinematography, autoradiography, electron microscopy, cytochemistry). (Planariidae, Turbellaria) b Mechanism of epiboly (ultrastructure, cytochemistry, time-lapse cinematography). Fundulus heteroclitus (Teleostei) (with J. P. TRINKAUS) BETTANIN (BELGRANO), Mrs. S. Dr.Nat.Sci. — 1st. di Zool., Univ. di Genova, Via Balbi 5, 16126 GENOVA, Italy a Embryo development of a parthenogenetic marine form. Penilia avirostris (Cladocera, Crustacea) (with N. DELLA CROCE) b Growth of the embryo. Penilia avirostris (Cladocera, Crustacea) (with N. DELLA CROCE) c Formation of resting eggs. Penilia avirostris (Cladocera, Crustacea) (with N. DELLA CROCE) BETZ, T. W. Ph.D., Prof. — Dept. of Biol., Fac. of Sci., Carleton Univ., OTTAWA 1, Ont., Canada a Hormonal control of the functional differentiation of the duodenum, spleen, and retina in the embryo. Gallus domesticus (Aves) b Hormonal and dietary control of embryonic growth. Same species as a BEYNON, A. D. G B.D.S. — Dept. of Oral Anat., Dental School, Northumberland Rd., NEWCASTLE upon Tyne NE1 8TA, England a Development of the root and periodontal ligament of the molar teeth. (Rodentia) b Histochemistry of enamel maturation. (Rodentia) BEZEM, J. J. Ir. ~ Zool. Lab., State Univ. of Utrecht, Teelingstr. 2, UTRECHT, Nether- lands a Computer simulation of embryonic development, (with Chr. P. RAVEN) BHARGAVA, I. D.Sc, Prof. — Dept. of Anat., Jawaharlal Inst, of Postgrad. Med. Educ. & Research, PONDICHERRY-6, India a Anatomy of fetal blood vessels on the chorial surface of the placenta in abnormal states of pregnancy. Homo sapiens (Primates) b Morphometry and stereology of fetal blood vessels of the placenta. Same species as a c Recessive inheritance of nondisjunction. Same species as a d Cytogenetic studies in developmental defects. Same species as a BIAGIONI, Mrs. M. Dott.Sci.Nat. — 1st. di Biol. Gener., Univ. di Perugia, Via del Giochetto, 06100 PERUGIA, Italy a Influenza dei sali di cobalto sull'eritropoiesi. Oryctolagus cuniculus (Lagomorpha) BIEBER, S. Ph.D. — Office of the Provost, Fairleigh Dickinson Univ., 1000 River Rd., TEANECK, N.J. 07666, U.S.A. • 20 BIELAfiSKA (OSUCHOWSKA), Mrs. Z. Dr., Prof. — Dept. of Histol. and Embryol., Warsaw Agric. Univ., ul. Grochowska 272, WARSZAWA, Poland a Histochemistry of gonad differentiation. Sus domesticus (Artiodactyla) and other spp. (Vertebrata) BIERNE, J. Dr.es Sci. — Lab. de Biol. Cell., Fac. des Sci., B.P. 347, 51 REIMS, France a Endocrine and genetic factors in sex differentiation and maturation. (Nemertea) b Origin of regeneration cells. (Nemertea) c Morphogenesis in regeneration. (Nemertea) d Immunological consequences of auto-, homo- and heteroplastic grafts. (Nemertea) BIGGELAAR, J. A. M. v.d. Ph.D. ~ Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands a RNA synthesis in early stages. Lymnaea stagnalis (Gastropoda) b Relation between division chronology and early differentiation. Same species as a BIGGERS, J. D. D.Sc, Ph.D., Prof. — Dept. of Popul. Dynamics, Sch. of Hyg. and Publ. Health, Johns Hopkins Univ., 615 N. Wolfe St., BALTIMORE, Md. 21205, U.S.A. a Organ culture of fallopian tubes and ovaries. (Mammalia) b Culture and metabolism of eggs. (Mammalia) c Oocyte maturation. (Asteroidea), Homo sapiens and other spp. (Mammalia) d Reproduction and embryology of wild animals. (Mammalia) BIJTEL, Miss J. H. D.Sc, M.D. ~ De Boelelaan 275, "Zuidwende", AMSTERDAM-Buiten- veldert, Netherlands • BILLETT, F. S. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON S09 5NH, England a Differentiation of embryonic epidermis. Xenopus laevis (Anura), Amby stoma mexicanum (Urodela) b Fine structure of early oocytes, pre-vitellogenic phase. Xenopus laevis (Anura), Ambystoma mexicanum (Urodela) BILLINGTON, W. D. Ph.D. ~ Dept. of Zool., Univ. of Oxford, South Parks Rd., OXFORD OX1 3PS, England a Development of the embryo. (Mammalia) b Biology of the trophoblast. Mus musculus (Rodentia) c Immunological aspects of pregnancy. (Mammalia) BILO, Mrs. A. — Inst, fur Genet., Univ. des Saarlandes, 66 SAARBROCKEN 11, W.Germany a Juvenile hormone, inorganic ions and puffing patterns in giant chromosomes. Chironomus thummi (Diptera) BILQEES, Mrs. F. M. Ph.D. — Dept. of Zool., School of Parasitol., Univ. of Karachi, KARACHI 32, W.Pakistan a Segmentation ( = fragmentation) , asexual multiplication, and regeneration in adults. Cameronia gen. nov., Segmentatum gen. nov. (Stomachicolinae, Hemiuridae, Trematoda) b Experiments on the life cycle and pathology. Clinostomum spp., Euclinostomum spp. (Trematoda) BINNS, W. Dr. — Anim. Dis. and Parasite Res. Div., Agric. Res. Serv., 1150 E. 14th N., LOGAN, Utah 84321, U.S.A. a Experimental teratology, (with M. M. BRYDEN, Sydney and H. EVANS, Ithaca, N.Y.) BIRCH-ANDERSEN, A. - State Serum Inst., Amagerboulevard 80, COPENHAGEN S, Denmark a The ultrastructure of normal and pathological sperm. Bos taurus (Artiodactyla) (with E. BLOM, State Vet. Serum Lab.) BIRGE, W. J. Ph.D., Prof. — Dept. of Zool., Univ. of Kentucky, Funkhouser Bldg., LEXING- TON, Ky. 40506, U.S.A. • BIRKY, C. W., Jr. Ph.D. — Fac. of Genet., Ohio State Univ., 1735 Neil Ave., COLUMBUS, Ohio 43210, U.S.A. • BIRNSTIEL, M. L. Dr.Sc.nat. — Dept. of Anim. Genet., Univ. of Edingburgh, King's Buildings, EDINBURGH EH9 3JN, Scotland, U.K. • a Characterization of ribosomal DNA. Xenopus laevis (Anura) b Characterization of 9s pulse-labelled messenger RNA. (Echinoidea) BISHOP, D. W. Ph.D., Prof. — Dept. of Physiol., Med. Coll. of Ohio at Toledo, P.O.Box 6190, TOLEDO, Ohio 43614, U.S.A. • a Contractile protein and contractile mechanisms of spermatozoa. (Mammalia) b Testicular enzymology. (Mammalia) c Immunologic impairment of spermatogenesis. Cavia spec. (Rodentia) d Metabolic controls in germ-cell differentiation. (Mammalia) BISHOP. M. W. H. Ph.D. — Dept. of Anim. Husbandry, School of Vet. Sci., Univ. of Bristol, Langford House, Langford, BRISTOL BS18 7DU, England a Gametogenesis. (Mammalia) b Congenital abnormalities, especially embryonic death and intersexuality. (Mammalia) BISHOP (CALAME), Mrs. S. M. Lic.es Sci. — Dept. of Poultry Husbandry, Univ. of Calif., DAVIS, Calif. 95616, U.S.A. • BJERRE, B. M.D. ~- Tornblad-Inst. for Comp. Embryol.. Biskopsgatan 7, S-223 62 LUND, Sweden 21 a Effect of nerve growth factor on early development. Gallus domesticus (Aves) BLACK, R. E. Ph.D., Prof. — Dept. of Biol., Coll. of William and Mary, WILLIAMSBURG, Va. 23185, U.S.A. • a Tracer studies of metabolic pathways in embryos. Chrysaora quinquecirrha (Scyphozoa), Arbacia punctulata (Echinoidea) b Development of enzymes in embryos. Same species as a BLACKLER, A. W. Ph.D., Prof. — Sect, of Genet., Developm., and Physiol., Div. of Biol. Sci., Emerson Hall, ITHACA, N.Y. 14850, U.S.A. • a Nucleolar repression and gametogenesis in natural and "transmission" (via germ cell grafts) hybrids. Xenopus mulled, X. laevis (Anuca) BLAKE, J. A. Ph.D. — Pacific Marine Station, Univ. of the Pacific, DILLON BEACH, Calif. 94929, U.S.A. a Reproduction and larval development under laboratory conditions from egg through metamorphosis. Anaitides williamsi, Polydora spec, nov., Boccardia columbiana, Pseudo- polydora kempi, P. paucibranchiata (Polychaeta) , Ceratostoma foliatum (Prosobranchi- ata), Cadlina limbaughi, Acanthodoris spec, Triopha carpenteri, Coryphella trilineata (Opisthobranchiata, Gastropoda) , Paguvus setosus (Decapoda, Crustacea) BLANCHET, J. P. Dr.Spec. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Evolution des deshydrogenases lactiques au cours de l'erythropoiese embryonnaire. Gallus domesticus (Aves) BLECHSCHMIDT, E. Dr.med., o.o.Prof. ~ Anat. Inst, der Univ., Kreuzbergring 36, 34 GOT- TINGEN, W.Germany a Ultrastruktur von Embryonen. Homo sapiens (Primates) BLOCH, D. P. Ph.D., Prof. — Bot. Dept. and Cell Research Inst., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. • BLOM, E. Dr.med. vet. — State Vet. Serum Lab., Bulowsvej 27, 1870 COPENHAGEN V, Denmark a Pathological conditions in the testis, epididymis and accessory sex glands. Bos taurus ( Attiodactyla) b The ultrastructure of normal and pathological sperm. Bos taurus (Artiodactyla) (with A. BIRCH-ANDERSEN, State Serum Inst.) BLONDHEIM, Mrs. S. A. M.Sc. — Dept. of Entomol. and Venomous Anim., The Hebrew Univ., JERUSALEM, Israel a Percentage hatch and viability of hybrid embryos. Acvotylus insubcicus x A. patrucki, Dociostauvus genei x D. curvicercus (Acrididae, Otthoptera) BLOOM, S. E. Ph.D. — Dept. of Poultry Sci., N.Y.State Coll. of Agric. at Cornell Univ., 210 Rice Hall, ITHACA, N.Y. 14850, U.S.A. a The morphology, cytology and etiology of haploid, triploid, trisomic, and tetraploid em- bryos, especially determination if production of chromosomal abnormalities is under genetic control. Gallus domesticus (Aves) b Cytology, development, and reproductive performance of mitotic mutants, especially the effects of age and sex on the development of binucleated erythrocytes. Meleagris gallopavo (Aves) BLOSS (JABLONOWSKI), Mrs. W. Dr.med. — Abt. fur Neuroanat., Anat. Inst, der Univ., Martinistr. 52, 2 HAMBURG 20, W.Germany a The differentiation of cortical layers (autoradiography). (Mammalia) BLOUNT, R. F. Ph.D., Prof. — Dept. of Anat., Med. Branch, Univ. of Texas, GALVESTON, Tex. 77550, U.S.A. • a Morphological changes in kidney during development and changes with age. Mus musculus (Rodentia) BLUEMINK, J. G. Ph.D. ^ Hubrecht Lab. (Internat. Embryol. Inst.), Uppsalalaan 1, Uni- versiteitscentrum "De Uithof", UTRECHT, Netherlands a Electron microscopy and electron physiology of the effect of cytochalasin B on the mechanism of first cleavage. Xenopus laevis (Anuva) (with S. W. de LAAT) b Electron microscopy and experimental study of cell-to-cell junction formation and cell aggregation between median superficial neuroectoderm cells during the closure of the neural tube. Xenopus laevis, Ambystoma mexicanum (Amphibia) c Subcellular aspects of functional differentiation in the parotid gland. Rattus rattus (Roden- tia) d The origin of the dorso-ventral polarity of the egg (electron microscopy). (Amphibia) (with P. D. NIEUWKOOP) BLUNT, M. H. Ph.D., M.R.CV.S. ~ Dept. of Med. Research, Veterans Adm. Hosp., AUGUSTA, Ga. 30904, U.S.A. a Development of haemoglobins in the embryo. (Caprinae, Artiodactyla) BLUNT, M. J. Ph.D., Prof. ~ Sch. of Anat., Univ. of N.South Wales, P.O.Box 1, KENSING- TON, N.S.W. 2033, Australia BLUZAT, R. R. Dr.3eme cycle — Lab. de Zool., Centre d'Orsay, Univ. Paris-Sud, 91 ORSAY, France 22 a Structure and ultrastructure of germinal determinant in the egg. Leptinotarsa decemlineata (Coleoptera) b Effect of ionizing radiations in early embryogenesis. Same species as a BOCZKOWSKA, Mrs. J. B.Sc. ~ Dept. of Histol. and Embryol., Acad, of Med., ul. Naru- towicza 60, ]Z,ODz, Poland a Histochemistry of distribution and activity of acid phosphatase and beta-glucuronidase in the lung and the liver during embryogenesis. Xenopus laevis (Anura), Rattus norvegicus, Cavia porcellus (Rodentia) BODE, H. R. Ph.D. — Dept. of Developm. and Cell Biol., Univ. of California, IRVINE Calif. 92664, U.S.A. a Regulation of interstitial cell differentiation into the four types of nematocytes. Hydra spec. (Hydrozoa) BODELET, B. — Lab. d'Embryol., Univ. de Nancy I, 31 rue Lionnois, 54 NANCY, France a Morphogenese pathologique et teratogenese. Homo sapiens (Primates) b Action de certains antimitotiques sur les lignees hematopoietiques embryonnaires. Gallus g alius (Aves) BODEMER, C. W. Ph.D. — Dept. of Biomed. Hist., School of Med., Univ. of Washinqton, SEATTLE, Wash. 98105, U.S.A. • a History of embryology, 1600- 1900 BODENSTEIN, D. Ph.D., Prof. ~ Dept. of Biol., Univ. of Virginia, Gilmer Hall, CHAR- LOTTESVILLE, Va. 22903, U.S.A. • a Intergeneric grafts of organ discs. (Diptera) b The role of the prothoracic gland in postembryonic development. Periplaneta americana (Blattariae) BODMAN, Sister M. C. Ph.D., Prof. ~- Dept. of Oral Pathol., Loyola Univ., 1757 W. Har- rison St., CHICAGO, 111. 60612, U.S.A. BOELL, E. J. Ph.D., D.Sc, Prof. ~ Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. • a Changes in enzymatic activity and morphology of embryonic tissues during growth and differentiation. (Amphibia; Aves) b Effects of hormones on enzyme synthesis in specific target tissues of the developing embryo during tissue differentiation and regression. (Amphibia; Aves) BOHN, H. Dr.rer.nat. ~ Zool. Inst, der Univ., Luisenstr. 14, 8000 MUNCHEN 2, W.Germany a Regeneration and transplantation of limbs; polarity and gradient systems. Leucophaea maderae, Gromphadorhina portentosa (Blattariae) BOILLY. B. Dr.es Sci. ~ Lab. de Biol. Anim., Univ. des Sci. et Techn., B.P. 36, 59-VILLE- NEUVE D'ASCQ, France • a Morphogenesis in regeneration. (Polychaeta) b Origin of regeneration cells. (Polychaeta) c Evolution of regeneration cells, determinism of this evolution. (Annelida) d Factors of regenerative morphogenesis, especially nervous system. (Annelida) BOLETZKY, S. von Ph.D. - Lab. Arago, 66 BANYULS-sur-Mer, France a Embryonic and postembryonic development. Octopus vulgaris, Eledone cirrosa, Loligo vulgaris, Sepiola spp., Sepietta spp., Rossia macrosoma (Cephalopoda) b Ultrastructure of the embryonic ciliary apparatus, which is characterized by gradual beat reversal. (Cephalopoda) BOLLUM. F. J. Dr.,Prof. ~ Dept. of Biochem., Med. Center, Univ. of Kentucky, LEXING- TON, Ky. 40506, U.S.A. a Analysis of the physico-chemical properties of DNA in differentiating cells. Triturus viridescens (Urodela), Gallus domesticus (Aves), Mus musculus, Rattus rattus (Rodentia) , Homo sapiens (Primates) (with S. P. MODAK) b Progressive accumulation of single strand breaks in the nuclear DNA during lens fiber cell differentiation. Gallus domesticus (Aves) (with S. P. MODAK) BOLOGNANI (FANTIN), Mrs. A. M. Prof. — Inst, of Comp. Anat, Univ. of Pavia, Piazza Botta 10, 27100 PAVIA, Italy a The integument of foot and mantle (histochemistry, biochemistry). (Polyplacophora; Scaphopoda; Gastropoda; Lamellibranchia) b The glands associated with the reproductive tract (histochemistry). Lymnaea stagnalis (Gastropoda) c The salivary glands. Lampreda zanandcei (Cyclostomata) BOLOGNARI. A. Prof. — 1st. di Zool. e di Anat. Comp., Univ. di Messina, Via dei Verdi 75, 98100 MESSINA, Italy a Nucleolus of the oocyte. (Teleostei) BOLS, N. C. B.S. - Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a Histone transition in spermiogenesis. Drosophila melanogaster (Diptera), Xenopus laevis (Anura) (with H. E. KASINSKY) BONDI. C. Dott, Prof. — 1st. di Anat. Comp., Univ. di Perugia, Via A. Pascoli, 06100 PERUGIA, Italy 23 a The action of magnetic field on nervous system development. Rana esculenta, Bufo vulgaris (Anura) b Electron microscopy of vitellogenesis. Branchiobdetla pentodonta (Oligochaeta) BONNER, J. T. Ph.D., Prof. - Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540, U.S.A. • a Problems of morphogenetic movements and differentiation. (Acrasiales) BONNY PILO, Dr. — Dept. of Zool., Fac. of Sci., M.S. Univ. of Baroda, BARODA-2, India a Liver, spleen and lymph gland regeneration. (Reptilia; Aves) BONS, J. Dr.es Sci. — Lab. de Zool. II, (Morphol. et Ecol.), Univ. des Sci. et Techn. du Languedoc, Place Eugene Bataillon, 34 MONTPELLIER, France a Embryonic development. Agama bibroni (Lacertilia) BONTING, S. L. Ph.D., Prof. — Dept. of Biochem., Univ. of Nijmegen, Geert Grote Plein N. 21, NIJMEGEN, Netherlands a Development of the rhodopsin cycle; rhodopsin, electroretinogram and morphology from birth till maturity. Canis domesticus (Carnivora) (with F. J. M. DAEMEN) BOON (NIERMEYER), Mrs. E. K. M.Sc. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands a Influence of puromycin on early cleavage cycles; significance for morphogenesis. Lymnaea stagnalis (Gastropoda) b Origin of morphogenetic disturbances by heat-shock or lithium treatment at cleavage stages. Same species as a BOONE, M. A. Ph.D., Prof. — Poultry Sci. Dept., Coll. of Agric, Clemson Univ., CLEM- SON, S.C. 29631, U.S.A. a Ultrastructure of spermatozoa. Gallus domesticus, Meleagris gallopavo (Aves) b Effect of high ambient temperature on semen and egg production. Gallus domesticus (Aves) c Development of drug bio-assay system by growing embryos in beakers. Gallus domesticus (Aves) BOPP, M. Dr.rer.nat, Prof. — Bot. Inst., Univ. Heidelberg, Hofmeisterweg 4, 69 HEIDEL- BERG, W.Germany a Crown-gall development and initiation. Bryophyllum daigremontianum (Crassulaceae) b Development; morphogenesis of protonema. Funaria hygrometrica (Bryophyta) c Shoot growth and DNA synthesis. Sinapis spec, Cucucbita spec, Beta spec. (Angiosper- mae) BORGHESE, E. M.D., Dr.Biol.Sd., Prof. — 1st. di Anat. Umana Norm. II Cattedra, Univ. di Napoli, Via L. Armanni 5, 80138 NAPOLI, Italy • BORISOV, I. N. Cand.biol.sci. — Chair of Histol. and Embryol., Archangelsk State Med. Inst., Av. P. Vinogradow 51, ARCHANGELSK, U.S.S.R. BOROJEVIC, R. D.E.S. — Lab. de Biol. Invert. Marins, Museum Natl. d'Hist. Nat. Paris, 57 rue Cuvier, 75 PARIS Ve, France BORSTEL, R. C. von Ph.D. ~ Biol. Div., Oak Ridge Natl. Lab., P.O. Box Y, OAK RIDGE, Tenn. 37830, U.S.A. BOSSHARD. N. U. Dipl.Natw. — Inst, fur Genet., Univ. des Saarlandes, 66 SAAR- BRUCKEN 11, W.Germany a Influence of chemical stimuli on gene activity. Gallecia mellonella (Lepidoptera) BOSSY, J. G. M. M.D., Prof. — Dept. of Anat., Univ. of Montpellier, 2 rue Ecole de Mede- cine, 34 MONTPELLIER, France a Development of neuroblasts grafted in the adult spinal cord. Rattus norvegicus (Rodentia) b Anencephaly and similar defects. Homo sapiens (Primates) BOTERENBROOD, Miss E. C. Ph.D. ~ Hubrecht Lab. (Intern. Embryol. Inst.), Uppsala- laan 1, Universiteitscentrum "De Uithof", UTRECHT, Netherlands a Pattern formation in the prosencephalic part of the neural plate. Triturus alpestris (Urodela) b Analysis of dorso-ventral polarity in mesoderm induction and endoderm differentiation. Ambystoma mexicanum (Urodela) (with P. D. NIEUWKOOP) c Cinematography of normal cleavage pattern and gastrulation movement. Ambystoma mexicanum (Urodela) , Xenopus laevis (Anura) (with K. HARA) BOTH, N. J. de Ph.D. ~ Dept. of Cell Biol., Med. Fac, ROTTERDAM, Netherlands a Microchemical analysis of differentiation in the intestinal epithelium. Rattus spec. (Roden- tia) BOULEKBACHE, H. Lic.es Sci., D.E.A. ~- Lab. dAnat. Comp., Univ. Paris VII, 2 Place Jussieu, 75 PARIS Ve, France a The relationship between glycolytic enzymes and respiration in early development. Salmo irideus (Teleostei) b Qualitative changes in the isoenzymes of L.D.H., aldolase and glucose-6-phosphate dehydrogenase during development. Same species as a c Electron microscopy of mitochondria and yolk platelets in early development. Same species as a d Effect of D.D.T. and parathion on early development. Same species as a 24 BOURSNELL, J. C. Dr. ~ A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. Station, 307 Huntingdon Rd., CAMBRIDGE CB3 OJQ, England a Seminal plasma proteins. (Mammalia) BOUVET, J. L. Dr.Spec. — Lab. de Zool.. Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Experiments on the development of the paired fins. Salmo trutta fario (Teleostei) BOVBJERG (BLANCHARD), Mrs. A. M. Ph.D. ~ Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA-City, Iowa 52240, U.S.A. a Factors affecting skin graft rejection and the nature of the immune reaction. Rana pipiens, R. catesbeiana (Anura) b Development of skin, in larvae metamorphosing normally and with exogenous thyroid hormone. Rana pipiens (Anura) BOVING, B. G. M.D. — Dept. of Anat, Wayne State Univ., 540 E. Canfield, DETROIT, Mich. 48201, U.S.A. • a Blastocyst spacing, orientation and implantation mechanisms. Oryctolagus cuniculus (Lagomorpha) b Relation of trophoblast invasion to blood vessels underlying uterine epithelium, and the anatomical, mechanical, and chemical basis for it. Same species as a c Identification and function of non-cellular blastocyst coverings. Same species as a d Structure and function of trophoblast knobs. Same species as a BOWEN, Mrs. S. T. Ph.D., Prof. — Dept. of Cell and Molec. Biol., School of Nat. Sci.. San Francisco State Coll., SAN FRANCISCO, Calif. 94132, U.S.A. a Changes in hemoglobin composition in development: effect of environment on hemoglobin induction in a clone of genetically identical parthenogenetic females. Avtemia salina (Anostraca, Crustacea) BRACHET, J. L. A. M.D., D.Sc, Prof. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des Chevaux, 1640 RHODE-ST-GENESE, Belgium • a Effect of a-amanitin, rifampicin and bromodeoxyuridine (BUDR) on development (RNA polymerase, mitochondrial polymerase; morphogenesis). Pleurodeles waltlii (Urodela), Xenopus laevis (Anura) b Origin, nature and role of cytoplasmic DNA. Xenopus laevis (Anura) c DNA synthesis during maturation. (Echinoidea; Amphibia) d Effects of cortical lesions on DNA, RNA and protein synthesis. Xenopus laevis, Rana temporaria (Anura) e Effects of "conditioned medium" from dissociated morulae on development and nucleic acid synthesis. Paracentrotus lividus (Echinoidea) BRADEN, A. W. H. Ph.D. ,- Div. of Anim. Physiol., C.S.I.R.O.. Ian Clunies Ross Anim. Res. Lab., P.O. Box 144, PARRAMATTA, N.S.W. 2150, Australia BRADLEY, M O. B.A. - Dept. of Biol. Sci., Stanford Univ., STANFORD, Calif. 94305, U.S.A. BRAHMA, S. K. D.Phil., Ph.D. — Dept. of Anat. and Embryol., State Univ. of Utrecht, Janskerkhof 3A. UTRECHT, Netherlands • BRAMBELL, F. W. R. | Ph.D., D.Sc, Prof. ~ Univ. Coll. of North Wales, BANGOR, Wales, U.K. BRANDLE, K. A. Dr.rer.nat. ~ Zool. Inst, der Univ., Siesmayerstr. 70, 6 FRANKFURT/M.. W.Germany a Preparation and rearing of animals with six or more limbs for research on modes of loco- motion. Ambystoma spec. (Urodela) b Preparation and rearing of animals with two heads connected in series (tandem heads) for study of relations between central nervous system and doubled sense organs. Ambystoma mexicanum (Urodela) c Implantation and rearing of isolated limb regions of embryos under the skin of a host for study of movement coordination of these isolated pairs of limbs. Same species as b BRANDT, W. H. Ph.D., Prof. — Dept. of Bot. and Plant Pathol., Oregon State Univ., CORVALLIS, Ore. 97331, U.S.A. a Physiology of development of microsclerotia. Verticillium albo-atrum (Fungi) BRAUCKMANN, Miss E. S. Biochem. — Inst, de Biol., Univ. Nac de Tucuman, Chacabuco 461, S. M. de TUCUMAN, Argentina a Morphogenesis of neural tube. Bufo arenarum (Anura) BRAUM. E. Dr. — Inst, fur Hydrobiol. und Fisch.wiss., Univ. Hamburg, Olbersweg 24, 2 HAMBURG-Altona 1, W.Germany a The influence of temperature, oxygen pressure and water flow on eggs and larvae. Esox lucius, Coregonus spp. (Teleostei) b The relation of external oxygen deficiency and embryogenesis. Clupea harengus (Tele- ostei) BRAUN. A. C. Ph.D., Prof. — Lab. of Plant Biol., Rockefeller Univ., 66th St. & York Ave., NEW YORK. N.Y. 10021, U.S.A. • BRAVERMAN, M. H. Ph.D. — Cell and Radiat. Biol. Labs., Allegheny Gen. Hosp.. 320 East North Ave., PITTSBURGH, Pa. 15212, U.S.A. 25 a Systems analysis of colony pattern and computer simulation of colony growth. Podocoryne carnea (Hydrozoa) b Macromolecular control of the initiation of lens morphogenesis and lens protein synthesis in vitro. Gallus domesticus (Aves) c Cell movements and their significance to colony growth and morphogenesis. Podocoryne carnea (Hydrozoa) BRAY, D. Ph.D. — Lab. of Molec. Biol., Med. Res. Council, Hills Rd., CAMBRIDGE CB2 2QH, England a Biochemistry of outgrowth processes from sympathetic neurons in tissue culture. Callus domesticus (Aves) BREIPOHL, W. Dr.med. ~- Inst, fur Anat. der Ruhr-Univ. Bochum, Postfach 2148, 463 BOCHUM, W. Germany a Ontogenesis of neurons in bulbus olfactorius, cerebral cortex, cerebellar cortex, mucosa olfactoria, sense organs, and receptors (electron microscopy, autoradiography, tissue culture, cinematography) BRENNER, S. D.Phil. — Lab. of Molec. Biol., Med. Research Council, Hills Rd., CAM- BRIDGE CB2 2QH, England a Developmental genetics of the nervous system. Caenorhabditis elegans (Nematoda) BREUCKER, Miss H. Dr. ~ Anat. Inst, der Univ. Hamburg, Martinistr. 52, 2000 HAMBURG- Eppendorf , W.Germany a Electron microscopy of spermatozoa and spermatogenesis. Ornithodorus moubata (Argasi- dae, Acarina), Geophilus linearis (Chilopoda) BREUGEL, F. M. A. van Dr. — Dept. of Genet., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Netherlands a Cytological differentiation and somatic crossing-over in white-mottled mutants. Drosophila melanogaster, D. hydei (Dipteca) b X-Y exchanges in males. Drosophila hydei (Diptera) BRICHOVA (MULLEROVA), Mrs. H. M. M.D. — Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4, PRAGUE 2, Czechoslovakia a Electron microscopy of microglial cells during postnatal development. Rattus rattus (Rodentia) BRICK, I. Ph.D., Prof. — Dept. of Biol., Washington Square Coll., New York Univ., Washington Square, NEW YORK, N.Y. 10003, U.S.A. a Tissue affinities in developing melanophores studied by time-lapse photography. Am- bystoma mexicanum (Urodela) b Genetic control of cell surfaces in the development of pigment pattern. Ambystoma mexicanum (Urodela) c Analysis of melanophore determination at the molecular level. Ambystoma mexicanum (Urodela) d Development of the eye, optic nerve, and optic tectum in reciprocal transplants of eye rudiments between embryos of varieties with and without eyes. Astyanax mexicanus (syn. Anoptichthyes jordani) (Teleostei) e The surface of cells in different presumptive regions during gastrulation (cell electro- phoresis) . Rana pipiens (Anura) BRIDE, Miss J. Lic.es Sci. ~ Lab. de Zool., Fac. des Sci., Place Marechal Leclerc, 25 BESAN- CON, France a Developpement embryonnaire de la glande uropygienne. (Aves) (avec L. GOMOT) BRIDE (VUILLET), Mrs. M. Lic.es Sci. — Lab. de Zool., Fac. des Sci., Place Marechal Leclerq, 25 BESANgON, France a Le developpement in vivo et in vitro du coeur. Rana temporaria, Xenopus laevis (Anura) (avec L. GOMOT) BRIEGLEB, W. Dr.rer.nat. ~ Inst, fur Flugmedizin der DFVLR, Kolner Str. 70, 532 BAD GODESBERG, W.Germany a Einfluss von Licht und hoher Temperatur auf die Ontogenese einer neotenen Art aus einem Hohlenbiotop. Proteus anguinus (Urodela) b The influence of simulated weightlessness on development. Tribolium castaneum (Coleop- tera) c The influence of simulated weightlessness by rotation on the early development (polariza- tion). Ascaris (Nematoda), (Anura) (with G. TEUCHERT) d The influence of simulated weightlessness (by submersion) on metamorphosis. (Anura) (with G. TEUCHERT) BRIEN, P. L. Dr.Sc.Zool., Prof.Hon. — Inst, de Zool. Torley-Rousseau, Univ. Libre de Bruxelles, 50 Av. F. D. Roosevelt, BRUXELLES, Belgium • BRIGGS, R. W. Ph.D., Prof. - Dept. of Zool., Indiana Univ., BLOOMINGTON, Ind. 47401, U.S.A. • BRINCK-JOHNSEN, T Ph.D. - Dept. of Pathol., Dartmouth Med. School, HANOVER, N.H. 03755, U.S.A. a Placental and fetal steroidogenesis. Dasypus novemcinctus (Edentata) b Estrogens in pregnancy. Felis catus (Carnivora) 26 BRINSTER, R. L. V.M.D., Ph.D., Prof. — Lab. of Reprod. Physiol., School of Vet. Med., Univ. of Pennsylvania, 530 Lippincott Bldg., 25th & Locust Sts., PHILADELPHIA, Pa. 19103, U.S.A. a Differentiation in early embryos. Mus musculus and other spp. (Mammalia) BRODY, S. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O. Box 109, LA JOL- LA, Calif. 92037, U.S.A. a Developmental genetics. Neurospora crassa (Ascomycetes) b Biochemical mechanisms in morphogenesis. Neurospora crassa (Ascomycetes) BR0NDSTED, H. V. — Dr.Phil., Prof.(Emer.) — Stockholmsgade 23, 2100 COPENHAGEN 0, Denmark • a Physiology and regeneration. (Porifera; Turbellaria) b Embryology. BROOKBANK, J. W. Ph.D., Prof. — Dept. of Zool., Univ. of Florida, GAINESVILLE, Fla. 32601, U.S.A. a Cytophotometry of DNA and RNA during development of interordinal hybrids. Strong- ylocentrotus purpuratus, Dendraster excentricus (Echinoidea) b Electron microscopy of "ribosomal vesicles" (nuclear) of unfertilized and freshly fertilized eggs. Lytechinus variegatus, Arbacia punctulata (Echinoidea) BROOKS, Miss M. A. Ph.D., Prof. — Dept. of Entomol., Fish, and Wildlife, Univ. of Min- nesota, ST. PAUL, Minn. 55101, U.S.A. a Tissue differentiation, studied in cell culture, with respect to developmental potential as correlated with stages in the life cycle. Malacosoma disstria (Lepidoptera) b The effect of intracellular symbiotic microorganisms on vitellogenesis and embryonic development. Blattella germanica, Periplaneta americana (Blattariae) c Growth and differentiation of cells in vitro modified by infection with intracellular microorganisms. Blattella germanica (Blattariae) BROSEMER, R. W. Ph.D., Prof. — Dept. of Chem., Washington State Univ., PULLMAN, Wash. 99163, U.S.A. BROWDER, L. Ph.D. ~- Dept. of Biol., Univ. of Calgary, CALGARY 44, Alta., Canada a Biochemistry of melanogenesis. Rana pipiens (Anura) b Developmental genetics of neural crest. Rana pipiens (Anura) BROWN, D. D. M.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. ' • ~ Dept. of Biol., Johns Hopkins Univ., Charles 6 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Biochemistry of early development. Rana pipiens, Xenopus laevis (Anura), Bombyx mori and other spp. (Lepidoptera) (with A. E. CLASON, P. M. LIZARDI, K. SUGIMOTO and Y. SUZUKI) b Silk gland development and differentiation, esp. silk fibroin synthesis, fibroin message synthesis, and isolation of the fibroin gene. Bombyx mori (Lepidoptera) (with Y. SUZUKI and L. P. GAGE) BROWN, E. H. Ph.D. - Dept. of Zool, Univ. of Illinois, URBANA, 111. 61801, U.S.A. a Genetic and cytological aspects of oogenesis. Drosophila melanogaster (Diptera) BRUCE, L. Fil.Kand. ~ Zoophysiol. Inst, Univ. of Lund, Helgonavagen 3, 223 62 LUND, Sweden BRUEL. Mrs. M. Th. Lic.es Sci. — Lab. de Biol. Anim., Univ. de Clermont, B.P. 45, 63 AUBIfiRE, France a Action des pesticides sur le developpement de l'embryon. (Aves) BRUGAL, G. J. Y. Dr.spec. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Autoradiography of the effect of differentiation on mitotic cycle duration and cell proliferation during embryonic development. Pleurodeles waltlii (Urodela) BRUMMETT, Miss A. R. Ph.D. - Dept. of Biol., Oberlin Coll., OBERLIN, Ohio 44074, U.S.A. BRUN, J. L. Dr.es Sci. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Adaptation aux temperatures elevees. Caenorhabditis elegans (Nematoda) b Genetic determination and development of dwarf mutants. Caenorhabditis elegans (Nema~ toda) BRUNA, R. Dr. — Inst, of Biochem., Univ. of Turin, Via Giolitti 34, 10123 TORINO, Italy BRUNST, V. V. Dr.biol.sci. ~ Roswell Park Mem. Inst., 666 Elm St., BUFFALO, N.Y. 14203, U.S.A. BRUST, R. A. Ph.D., Prof. — Dept. of Entomol., Fac. of Agric, Univ. of Manitoba, WIN- NIPEG 19, Man., Canada a The influence of thermal stress on development. Aedes spp. (Culicidae, Diptera) b Survey on the occurrence of autogeny in subarctic species (field and laboratory observa- tions) . Aedes spp. (Culicidae, Diptera) c Effect of mermithid parasitism on larval development. Aedes spp. (Culicidae, Diptera) d Effect of photoperiod and temperature on the induction and termination of diapause in larvae and embryos. Wyeomyia smithii, Aedes atropalpus (Culicidae, Diptera) 27 BRUSTIS, J. J. M.es Sci. — Lab. de Bioi. Anim. A, Univ. Bordeaux I, Av. des Facultes, 33 TALENCE. France a Etude descriptive et experimental de la formation et de la differentiation des somites. Rana dalmatina. Bufo bnfo, Discoglossus pictus (Anura) b Regeneration de la queue au cours du developpement precoce. Rana dalmatina, Bufo bufo (Anura) BRYAN, J. H. D. Ph.D., Prof. ~ Dept. of Zool., Univ. of Georgia, ATHENS, Ga. 30601, U.S.A. a Cytochemistry of gamete formation. Mus musculus (Rodentia) b Nucleic acid-protein ratios during growth and differentiation. Same species as a c Cytochemistry of nuclear proteins in differentiating and adult tissues. Same species as a d Differentiation of spermatozoa in mutants (light- and electron microscopy). Same species as a BRYAN, J. K. Ph.D., Prof. - Dept. of Biol., Syracuse Univ., 130 College Place, SYRACUSE, N.Y. 13210, U.S.A. a The mechanism of action of natural amino acids in the control of growth and development, especially inhibition of growth by lysine and threonine and its prevention by methionine. Marchantia polymorpha (Hepaticae) BRYANT, P. J. Ph.D. ~ Developm. Biol. Lab. and Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Regeneration and duplication following in situ operations on imaginal discs. Drosophila melanogaster (Diptera) b Collection of non-autonomous lethals. Same species as a c Examination of embryonic lethals for effects on prepatterns. Same species as a d Collection of mutants. Oncopeltus fasciatus (Hemiptera) e Attemps to obtain multiple regeneration. Same species as d f Assay of substances for effects on pattern formation. Same species as d BRYANT (POYNTZ), Mrs. S. V. Ph.D. — Dept. of Developm. and Cell Biol., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Regulation, determination, and redifferentiation within young blastemas. Triturus virides- cens (Urodela) b Polarity in tail regeneration. Anolis carolinensis (Lacertilia) BRYANT, T. R. Ph.D. — Dept. of Bot, Univ. of Georgia, ATHENS, Ga. 30601, U.S.A. a Activation in germinating seeds: 1. cytochemistry, especially synthesis of macromolecules; 2. physiology, especially appearance and development of circadian rythm and periodicity of function. Allium cepa (Liliaceae) BRYDEN, M. M. Ph.D., D.V.M. ~ Dept. of Vet. Anat., Univ. of Sydney, SYDNEY, N.S.W. 2006, Australia a Prenatal and postnatal development. Mirounga leonina (Pinnipedia) b General embryology. Ovis aries (Artiodactyla) c Embryo removal and replacement. Same species as b d Experimental teratology, (with H. EVANS, Ithaca, N.Y. and W. BINNS. Logan, Utah) BUDEGUER de ATENOR, Mrs. M. S. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S. M. de TUCUMAN, Argentina a Chemical factors involved in fertilization: oviducal origin of the diffusible factor. Bufo arenavum (Anura) BUEHR. M. L. Ph.D. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Regulation in the development of chimaeras. Mus musculus (Rodentia) b Invitro culture of embryos. Same species as a BUGGE, J. M.Sc. — Dept. of Anat., Royal Dent. Coll., Vennelyst Blvd., 8000 ARHUS C, Denmark a Development of the cerebral periventricular vasculature. Mus muscitlns (Rodentia) b Malformations of the vascular system of brain and head. Mus musculus, Rattus norvegicus (Rodentia) (with P. A. KNUDSEN) BUKULYA. B. — Inst, of Exper. Med. of the Hung. Acad, of Sci., Morphol. Dept., Szigony u 43, BUDAPEST VIII, Hungary a Fine structure and hormonal activity of intact and cultured embryonic adrenal cells of different species BULLIERE, D. Dr.es Sci. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Cellular determination in regenerating appendages: relations between regeneration and hormones. Blabera craniifer (Blattariae) b Myogenesis and myofibrillogenesis during regeneration of appendages. Same species as a BULLIERE (CHALLANDE). Mrs. F. Dr.spec. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Morphology and ultrastructure of organogenesis (in vitro culture, autoradiography). Blabera craniifer (Blattariae) b Relations between differentiation and hormones in embryos. Same species as a 28 BULMER, D. M.D., D.Sc, Prof. .- Chair of Human Morphol., Univ. of Southampton Med. School, Highfield, SOUTHAMPTON S09 5NH, England a Cytochemistry of developing female genital tract. Various spp. (Mammalia) b Cytochemistry of placenta. (Rodentia) BULSIEWICZ, Miss H. M.A. ~ Dept. of Gen. Biol., Silesian Acad, of Med., K. Marksa 19, Rokitnica, ZABRZE 8, Poland BURCHILL, B. R. Ph.D. ~- Dept. of Physiol, and Cell Biol., Univ. of Kansas, LAWRENCE, Kansas 66044, U.S.A. a Molecular control mechanisms of oral differentiation: possible involvement of information from the mitochondrial genome, effects of ultraviolet light on this involvement, and the functions of microtubules in differentiation (enzyme labeled antibody cytochemistry, electron microscopy) . Stentor coeruleus (Ciliata) b Sexual reproduction: mating types and the environmental conditions requisite for conjuga- tion. Stentor coeruleus (Ciliata) BURDA (WILSON), Mrs. D. J. Ph.D. — Biol. Dept., Univ. of California, San Dieqo, P.O. Box 109, LA JOLLA, Calif. 92037, U.S.A. a Development and experimental modification of cerebrovascular system. Gallus domesticus (Aves) b Early growth and differentiation of brain. Same species as a BURDI, A. R. Ph.D., Prof. — Dept. of Anat, Med. School, Univ. of Michigan, Med. Sci. Bldg. II, ANN ARBOR, Mich. 48104, U.S.A. a Variabilities and polymorphisms in prenatal dental development. Homo sapiens (Primates) b Sexual dimorphisms in facial embryogenesis. Homo sapiens (Primates) c Prenatal growth patterns of head and face. Homo sapiens (Primates) d Effects of hypoxia on facial development. (Mammalia) e Tissue interactions during early development of the skull. Gallus domesticus (Aves) BURDICK, M. L. Ph.D. ~ Dept. of Biol. Sci., Florida State Univ., TALLAHASSEE, Fla. 32306, U.S.A. a Study of the cellular specificities responsible for controlling morphogenetic movements, using reaggregation of dissociated cells as a test system. Gallus domesticus (Aves), Mus musculus (Rodentia) BURDON-JONES, C. Ph.D., Prof. ,- Depts. of Marine Sci., Botany and Zool., James Cook Univ. of North Queensland, P.O.Box 999, TOWNSVILLE, Qld. 4810, Australia • a Development and regeneration. Rhabdopleura normani, Cephalodiscus spec, and other spp. (Ptecobranchiata, Hemichordata) BURGER, Mrs. E. H. Drs. — Lab. for Cell Biol, and Histol., State Univ., Rijnsburqerweq 10, LEIDEN, Netherlands a The morphological and histochemical effect of parathyroid extract on the development of joints in embryonic toes in tissue culture. Mus musculus (Rodentia) BURGESS, Miss A. M. C. Ph.D. .- Dept. of Anat., London Hosp. Med. Coll., Turner St., LONDON E.1, England a RNA synthesis in dedifferentiating and redifferentiating regenerating tissues. Xenopus laevis, Ambystoma spec. (Amphibia) b Somite morphogenesis. Xenopus laevis (Anuva) c Myogenesis. Xenopus laevis (Anura) BURIGHEL, P. Dr.biol.sci. ~ 1st. di Biol. Anim., Univ. di Padova, Via Loredan 10, 35100 PADOVA, Italy a Differentiation of digestive tract. Botcyllus schlosseri, Botrylloides leachi (Ascidiacea) b Stages of the metamorphosis. Botryllus schlosseri (Ascidiacea) BURKART, T Dipl.Natw. ~ Inst, fur Genet., Univ. des Saarlandes, 66 SAARBRUCKEN 11, W^.Germany a Role of electrolytes in limb regeneration and metamorphosis. Triturus cristatus (Uvodela) , Xenopus laevis (Anura) BURNS, R. K. Ph.D. — Bridgewater Coll., BRIDGEWATER, Va. 22812, U.S.A. © BURNSIDE, Miss M. B. Ph.D. — Dept. of Anat., Harvard Med. School, BOSTON, Mass. 02115, U.S.A. a Investigation of the role of microtubules in the maintenance and production of cell shape in embryonic columnar epithelia. Tacicha torosa (Ucodela), Gallus domesticus (Aves) BURTON, A. L. M.D., Prof. — Dept. of Anat., Univ. of Texas Med. School at San Antonio, 7703 Floyd Curl Drive, SAN ANTONIO, Tex. 78229, U.S.A. a Development of mast cells in embryonic skin. Rattus norvegicus (Rodentia) BUSS, E. G. Ph.D., Prof. — Dept. of Poultry Sci., Pennsylvania State Univ., 203 Anim. Industries Bldg., UNIVERSITY PARK, Pa. 16802, U.S.A. a Characteristics of parthenogenetic development. Meleagris gallopavo (Aves) b Aneuploidy and polyploidy in embryonic development. Gallus domesticus (Aves) c Hormonal influence on development of binucleated red blood cells. Same species as a d Role of the posterior pituitary in development of diabetes insipidus. Same species as b BUTCHER, D. N. Ph.D. — ARC Unit of Developm. Plant Physiol, and Pathol., c/o Botany School, Downing St., CAMBRIDGE, England • 29 BUTLER, E. G. Ph.D., D.Sc, Prof.(Emer.) — Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540, U.S.A. • a The mechanics of the formation of the regeneration blastema; the influence of nerves on blastema formation; regression in nerveless non-regenerating limbs. Ambystoma punctatum, A. opacum (Urodela) b Effects of ultraviolet radiation on limb development and supernumerary limb regeneration. (Urodela) c Problems of polarity in the limb; regeneration after reversal of the proximo-distal axis. (Urodela) d Epidermal hyperplasia. (Urodela; Mammalia) e Spinal cord reconstitution after ablation. (Urodela) BUTLER, H. M.D., B.Chir. — Dept. of Anat, Univ. of Saskatchewan, SASKATOON, Sask., Canada a Reproductive cycle, implantation, placentation and early embryology. Galago senegalensis senegalensis (Lemuroidea, Primates) BUTLER, W.L. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O. Box 109, LA JOLLA, Calif. 92037, U.S.A. a Mechanism of phytochrome action in development. (Spermatophyta) b Photosynthesis and the development of the photosynthetic apparatus. (Spermatophyta) c Photocontrol mechanisms of cellular metabolism and development. (Bacteria; Plantae; Animalia) BUTROS, J. M. Ph.D., Prof. — Biol. Dept., American Univ. of Beirut, BEIRUT, Lebanon • a Action of stimulants and depressants on development of the heart primordium in vitro. G alius domesticus (Aves) b Action of spermine on early differentiation and morphogenesis, in vitro and in vivo. Gallus domesticus (Aves) BUTTERWORTH, F. M. Ph.D., Prof. — Dept. of Biol. Sci., Oakland Univ., ROCHESTER, Mich. 48063, U.S.A. a The hormonal and genetic control of development and reproduction of the adipose tissue on the cellular and biochemical level (microsurgery, transplantation, cytology, bio- chemistry) . Drosophila melanogastec (Dipteva) b The role of the internal environment and of development of lysosomes on cell death of the larval fat body. Drosophila spec. (Diptera) BUTZEL, H. M., Jr. Ph.D., Prof. — Dept. of Biol. Sci., Union College, SCHENECTADY, N.Y. 12308, U.S.A. a Developmental genetics of mating type. Paramaecium aurelia (Ciliata) b Organelle development: study of the role of organelles in teratogenesis of single and double cells. Paramaecium aurelia (Ciliata) BUZNIKOV, G. A. Dr.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a The role of neurotransmitters (acetylcholine, serotonin, catecholamines) in early embryo- genesis. Strong ylocentrotus drobachiensis, S. nudus, S. intermedius, Paracentrotus lividus, Arbacia lixula, Sphaerechinus granularis (Echinoidea), Rana temporaria, Bufo bufo (Anuva) (with L. N. MARKOVA) BYCZKOWSKA (SMYK), Mrs. W. Dr. — Dept. of Comp. Anat., Jagellonian Univ., ul.Krupnicza 50, KRAKOW, Poland BYLINA (KUfiSKA) , Mrs. A. mgr. Sci. — Dept. of Histol. and Embryol., Warsaw Agric. Univ., ul.Grochowska 272, WARSZAWA, Poland a Histochemistry of metanephros differentiation. Sus domesticus (Artiodactyla) BYRD, E. W., Jr. M.A. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a Histone synthesis during cleavage. Xenopus laevis (Anura) (with H. E. KASINSKY) b Patterns of basic ribosomal protein and histone synthesis during development. Drosophila melanogastev (Diptera) (with H. E. KASINSKY) BYSKOV (SJOLTE), Mrs. A. G. — Finsen Lab., Finsen Inst., 49 Strandboulevarden, 2100 COPENHAGEN, Denmark a Development of ovaries (electron microscopy, autoradiography, cell dynamics of atresia). (Rodentia) BYTINSKY-SALZ, H. Ph.D., Prof. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL- AVIV, Israel a Hormonal influences on melanophore behavior in tadpoles. Rana spec, Pelobates spec. (Anura) b Species specificity of different larvae tested by xenoplastic transplantation of hypophysis. Pelobates spec, Xenopus spec, Bufo spec, Rana spec, Bombina spec, Hyla spec. (Anura), Pleurodeles spec, Triton spec, Ambystoma spec. (Urodela) c Cytology of the larval skin. (Amphibia) CABADA, M. O. Biochem. — Inst, de Biol, Univ. Nac de Tucuman, Chacabuco 461, S. M. de TUCUMAN, Argentina a Chemical factors involved in fertilization: testicular factors, jelly coats. Bufo arenarum (Anura) 30 CAHN, R. D. Dr. — Dept. of Zool., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. • CAIRNS, J. M. Ph.D. — Springville Labs., Roswell Park Mem. Inst., SPRINGVILLE, N.Y. 14141, U.S.A. • a Mechanisms controlling growth in wing buds. Gallus domesticus, Coturnix c. japonica, Cairina moschata (Aves) b Changes in cell cycle, size, motility, and adhesivity in wing mesoderm responding to the ectodermal ridge factor. Same species as a CALARCO (GILLAM), Mrs. P. D. Ph.D. — Dept. of Zool., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Mechanisms of meiotic maturation: nuclear envelope breakdown, spindle formation, polar body formation, chromosome mechanics (cytology and electron microscopy). Mus mus~ cuius (Rodentia), Homo sapiens (Primates) b Blastocoel formation. Mus musculus (Rodentia) CALLEBAUT, M. E. M.D. — Lab. of Anat. and Embryol., State Univ. Center, Groenen- borgerlaan 171, 2020 ANTWERPEN, Belgium a Eearly development. Gallus domesticus, Coturnix coturnix (Aves) b 3H-uridine and 3H-thymidine incorporation in germ cells. Coturnix coturnix (Aves) CAMBAR, R. Dr., Prof. — Lab. de Biol. Anim. A, Univ. Bordeaux I, Av. des Facultes, 33 TALENCE, France • a Etude descriptive et experimentale de la morphogenese du mesonephros. Rana spec, Alytes spec, Discoglossus spec, Xenopus spec. (Anura) b Etude experimentale de la morphogenese du tube digestif et des glandes annexes. (Anura) c Involution ou transformation de l'appareil excreteur pendant la metamorphose. (Anura) d Rapports entre l'appareil genital et l'appareil excreteur. (Anura) e Ultrastructure du pronephros et du mesonephros. (Anura) f Differenciation sexuelle (Anura) g Infrastructure des cellules germinales. (Anura) CAMENZIND, R. Dr.scnat. — Dept. of Zool., Swiss Fed. Inst, of Technol., Universitatstr. 2, 8006 ZURICH, Switzerland a Morphology, physiology, and cytology of paedogenetic-bisexual reproduction cycle. Heteropeza pygmaea (= Oligarces paradoxus), Tekomyia populi, Mycophila speyeti, Miastor castaneae (Cecidomyiidae, Dipt era) b Time-lapse cinematography of embryonic development in vitro and chromosome elimination in early cleavage. Heteropeza pygmaea (Cecidomyiidae, Diptera) CAMERON, I. L. Ph.D., Prof. — Dept. of Anat., Univ. of Texas Med. School at San Antonio, 7703 Floyd Curl Drive, SAN ANTONIO, Tex. 78229, U.S.A. a Synchronous cell differentiation. Tetrahymena vorax (Ciliata) b Cell proliferation and differentiation. Gallus gallus (Aves) c Cell homing. Gallus gallus (Aves) d Patterns in development. Gallus gallus (Aves) CAMOSSO, Miss M. E. Sc.D. — Inst, of Human Anat., Fac of Med., Univ. of Bari, Policlinico, 70124 BARI, Italy a Analysis of the morphogenesis of the wing. Gallus domesticus (Aves) b Nerve patterns in experimentally duplicated limbs. Gallus domesticus (Aves) CAMPANTICO, E. Dr. — Inst, of Exper. Embryol., Univ. of Turin, Via Giolitti 34, 10123 TORINO, Italy CAMPBELL (GIBSON), Mrs. J. A. B.Sc(Hons.) -, Dept. of Cell Biol., Univ. of Glasgow, GLASGOW W.2, Scotland, U.K. CAMPBELL, J. C. Ph.D. — M.R.C. Epigenet. Research Group, Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Antigenic studies of lens regeneration. Xenopus laevis, Triturus alpestris (Amphibia) (with D. E. S. TRUMAN) b Regulatory mechanisms in lens regeneration. Xenopus laevis (Anura) c Metabolism (immunochemistry) and regulatory mechanisms in lens development. Xenopus laevis (Anura), Gallus domesticus (Aves) (with R. M. CLAYTON and D. E. S. TRU- MAN) d Mutants affecting the eye and lens. Mus musculus (Rodentia) (with R. M. CLAYTON) e Immunochemistry of retina and eye-cup. (Amphibia) (with R. M. CLAYTON) CAMPBELL, R. D. Ph.D., Prof. — Dept. of Developm. and Cell Biol., Univ. of Calif., IRVINE, Calif. 92664, U.S.A. a Morphogenesis: relations between movements, adhesions, and shapes of epithelial cells, and the animal shapes they produce. Hydra littoralis (Hydrozoa) b Cell cycle kinetics: determination of the durations of cell cycles, DNA synthesis, Gl- and G2-phases, and relating these to cell turnover rates during normal growth. Hydra attenuata (Hydrozoa) CAMPENHOUT, E. van f . Dr., Prof. — Univ. de Louvain, LOUVAIN, Belgium CANNATA, F. — Catt. di Istol. ed Embriol., Univ. di Messina, Via dei Verdi 75, 98100 MESSINA, Italy 31 CANNON, M. S. Ph.D. — Dept. of Anat, Ohio State Univ., 333 W. 10th Ave., COLUM- BUS, Ohio 43210, U.S.A. a Morphology and histology of the male and female adrenal gland from implantation to sexual maturity; histochemistry and electron microscopy of the cortical transient zone. Meriones unguiculatus (Rodentia) _._,_,„ XT _ , CANTELL, C.-E. Fil.lic. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Larval development. (Heteronemertini, Nemertea) CANTINO, D. M.D. — Dept. of Anat., Univ. of Turin, Corso M. d'Azeglio 52, 10126 TORINO, Italy CANTINO E C. Ph.D. — Dept. of Botany and Plant Pathol., Michigan State Univ. 166 Plant Biol. Bldg., EAST LANSING, Mich. 48823, U.S.A. • a Relation between biochemical and morphological differentiation. Blastocladiella emecsonn, B. britannica (Fungi) b Relation between changes in fine structure and germination in motile cells and associated biochemical differentiation. Same species as a CAPANNA, E. Dott.Sci.Nat. — 1st. di Anat. Comp. "Battista Grassi", Univ. di Roma, Via A. Borelli 50, 00161 ROMA, Italy a Histogenesis of the telencephalic neurons. Rana esculenta, Xenopus laevis, Bufo bufo CAPESIUS, Miss I. Dr. — Bot. Inst., Univ. Heidelberg, Hofmeisterweg 4, 69 HEIDEL- BERG, W.Germany a Synthesis of DNA and RNA in developing organs and tissues of seedlings and in callus cultures. Sinapis alba (Cruciferae) , Petroselinum (Umbelliferae) CAPURON, A. P. Dr.es Sci., Prof. — Lab. d'Embryol, Univ. des Sci. et Techn. de Lille, B.P. 36, 59 VILLENEUVE D'ASCQ, France a Origine, migration et differenciation des cellules germinales primordiales (cultures embryon- naires). Pleurodeles waltlii (Urodela) b Induction et organogenese de la bouche et des dents in vivo et in vitro. Same species as a CARELL, E. F. Ph.D. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, U.S.A. a Effect of light and chemicals on chloroplast development. Euglena gracilis (Eulenophyceae) CARINCI, P. M.D., Prof. — Inst, of Histol. and Gen. Embryol., Univ. of Perugia, Via del Giochetto, 06100 PERUGIA, Italy a Biochemical and histochemical analysis of embryonic fluids (albumen, yolk, and serum). Gallus domesticus (Aves) b Epithelio-mesenchymal interactions during lung and skin morphogenesis in vitro. Same species as a CARLSON, B. M. M.D., Ph.D. — . Dept. of Anat., Med. School, Univ. of Michigan, 4725 Med. Sci. Bldg. II, ANN ARBOR, Mich. 48104, U.S.A. a Supernumerary limb formation. Triturus viridescens (Urodela) b Minced muscle regeneration. Ambystoma mexicanum (Urodela), Rana spec. (Anura), Rattus nocvegicus (Rodentia) c Muscle and limb morphogenesis in regenerates. Ambystoma mexicanum, Triturus virides- cens (Urodela) d Inhibition of limb regeneration. Triturus viridescens (Urodela) CARMONA de UZCATEGUI, Mrs. M. L. Dr. Bio. — Cat. de Embriol., Fac. de Med., Univ de Los Andes, MfiRIDA, Venezuela a Development of the vascular system especially of the skin and its orifices (injection- preparations). Sus domesticus (Artiodactyla), Canis familiaris (Carnivora) , Homo sapiens (Primates) b Developmental pathology of the skeletal system. Homo sapiens (Primates) CARPENTER, S. J. Ph.D. — Dept. of Anat., Dartmouth Med. School. HANOVER, N.H. 03755, U.S.A. a Early histogenesis of placental ultrastructure. Mesocricetus auratus (Rodentia) b Teratogenic effects of heavy metals and viruses, electron microscopy, Mesocricetus auratus (Rodentia) CARR, D. H. Ph.D., Prof. — Dept. of Anat., Fac. of Med., McMaster Univ., HAMILTON, Ont., Canada a Chromosome abnormalities and development. Homo sapiens (Primates) CASPARI. E. W. Ph.D., Prof. — Dept. of Biol., Coll. of Arts and Sci., Univ. of Rochester, ROCHESTER, N.Y. 14627, U.S.A. • a Variegation in x-autosome translocations. Mus musculus (Rodentia) b Development of proteins. Anagersta (— Ephestia) kuhniella (Lepidoptera) CASSAGNE-MEJEAN, Mrs. F. Dr.es Sci. — Lab. de Zool. II, (Morphol. et Ecol.). Univ. des Sci. et Techn. du Languedoc, Place Eugene Bataillon, 34 MONTPELLIER, France a Embryonic and post-embryonic development and metamorphosis. Arrenurus spec. (Hy~ drachnellae, Acarina, Arachnida) 32 CASSIDY, J. D., O.P. Ph.D. — Dept. of Biol., Univ. of Notre Dame, NOTRE DAME, Ind. 46556, U.S.A. a Molecular cytology of oogenesis and embryogenesis. Habrobracon juglandis (Hyme- noptera) , Artemia salina (Anostcaca, Crustacea) b Developmental genetics, cytology, and physiology of malignant tumors in childhood. Homo sapiens (Primates) CASTIGLI (PITTOTTI), Mrs. M. Dott., Prof. — 1st. di Zool. Gen., Fac. di Sci. Aqraria Univ. di Perugia S.Pietro, PERUGIA, Italy CASTON, J. D. Ph.D. — Dept. of Anat., Developm. Biol. Center, Western Reserve Univ. 2119 Abington Rd., CLEVELAND, Ohio 44106, U.S.A. CATHER, J. N. Ph.D., Prof. — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich 48104, U.S.A. a The differentiation o7 the shell gland. Ilyanassa obsoleta and other spp. (Gastropoda; Lamellibranchia) b Cellular interactions. (Annelida, Mollusca and other Spiralia) CAUNA, N. M.D., D.Sc, Prof. — Dept. of Anat. and Cell Biol., Univ. of Pittsburq, 3550 Terrace St., PITTSBURG, Pa. 15213, U.S.A. a Development of peripheral receptor organs (neurohistology, histochemistry, electron microscopy). Homo sapiens and other spp. (Mammalia) CAUNTER (DEVIS), Mrs. R. J. M.Sc. — Dept. of Zool., Univ. of the Witwatersrand, Milner Park, JOHANNESBURG, S.Africa a Electron microscopy of development. (Ascidiacea) b Ectoderm development. Bufo spp. (Anura) CAVALLIN (THOMAS), Mrs. M. Dr.Biol.anim. — Lab. de Zool. Exper., Univ. de Bor- deaux I, Av. des Facultes, 33 TALENCE, France a Recherches descriptives et experimentales sur la morphogenese de l'appareil genital. Carausius spec. (Phasmida) CAVE, M. D. Ph.D. — Dept. of Anat. and Cell Biol., Univ. of Pittsburgh, 3550 Terrace St., PITTSBURGH, Pa. 15213, U.S.A. a The origin and function of extrachromosal deoxyribonucleic acid during oogenesis and early stages of embryogenesis. Various spp. (Gcyllidae, Orthoptera) CAZAUX, CI. Dr.es Sci. — Inst, de Biol. Marine, Univ. Bordeaux I, 2 rue du Prof. Tolvet, 33 ARCACHON, France a Larval development from egg (artificial fertilization, rearing in the laboratory). (Polychae- ta) CEBRA, J. J. Ph.D., Prof. — Dept. of Biol., Johns Hopkins Univ., Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Differentiation of lymphoid cells with respect to variety of their immunoglobulin product (polymorphic form of immunoglobulin and specificity of antibody). Oryctolagus cuniculus ( Lagomorpha) , Cavia porceltus (Rodentia), Homo sapiens (Primates) CECCARINI. C. Ph.D. — Dept. of Biol. Sci., Hunter Coll., City Univ. of N.York, 695 Park Ave., NEW YORK, N.Y."10021, U.S.A. CEDARD (WILLSTAETTER), Mrs. L. M.D., Ph.D. — Lab. de Chimie Hormonale, Maternite de Port-Royal, 121 Bd. de Port-Royal, 75 PARIS XlVe, France a Action of gonadotropins on steroidogenesis and glycogenolysis in placenta perfused i n vitro; demonstration of the role of cyclic 3'5AMP as intercellular mediator. Homo sapiens (Primates) b Biosynthesis of steroids and cholesterol in organ cultures of immature gonads; influence of HCG on steroidogenesis. Gallus domesticus (Aves) CENTER, Mrs. E. M. Ph.D. — Dept. of Biol., Stanford Univ., STANFORD, Calif. 94305, ^ U.S.A. CERBELLE, J. C. — Lab. de Physiol. Gen., Fac. des Sci. de Bordeaux, Av. des Facultes, 33 TALENCE, France CERIMELE, D. M.D. — Dept. of Dermatol., Univ. of Pavia, Policlinico S.Matteo, 27100 PAVIA, Italy a Quantitative and qualitative histochemical changes in skin during fetal life. Homo sapiens (Primates) CHAKRAVARTI, Mrs. A. M.R.C.O.G. — Dept. of Anat., Jawaharlal Inst, of Postqrad. Med. Educ. and Research, PONDICHERRY-6, India a Fetal blood vessels of the placenta in anaemias of pregnancy. Homo sapiens (Primates) CHALLICE, C. E. Ph.D., Prof. — Dept. of Physics, Fac. of Arts & Sci., Univ. of Calqary, CALGARY 44, Alta., Canada a Electron microscopy of the heart in development. Mus musculus (Rodentia), Oryctolagus cuniculus (Lagomorpha) CHALLIER, J.-C. Dr.3e Cycle — Inst. Natl, de la Sante et de la Rech. Med., Unite de Physiol, placentaire, Hopital Saint- Antoine, 184 rue du Faubourg Saint-Antoine, 75 PARIS Xlle, France CHALLONER, Miss S. B.A. — Anat. Dept., Med. School, University Walk, BRISTOL BS8 1TD, England 33 a The effect of various intra-uterine devices (I.U.D.'s) upon embryonic survival and dcciduoma formation. Rattus norvegicus, Mesocricetus auratus (Rodentia) CHAMBERLAIN, J. G. Ph.D. — Dept. of Anat., Sch. of Med., Univ. of California, SAN FRANCISCO, Calif. 94122, U.S.A. a Pathogenesis of experimentally induced congenital hydrocephalus: 6-aminonicotinamide injected during pregnancy. Rattus rattus (Rodentia) b Intraamniotic injections of metabolites and antimetabolites as replacement therapy during teratogenesis. Same species as a c Effects of hormones and hormone antibodies on fetal development and postnatal growth. Same species as a d Transfer of blastocysts to drug treated and non-treated recipients. Same species as a CHAMBOLLE, P. Dr.es Sci. — Lab. de Biol. Anim. A, Univ. Bordeaux I, Av. des Facultes, 33 TALENCE, France a Experiments sur la gestation. Gambusia spec. (Teleostei), Salamandra spec. (Urodela) b Developpement in vitro. Gambusia spec. (Teleostei) c L'ultrastructure des oeufs. Same species as b CHANCONIE (MAURY), Mrs. M. Dr.3e Cycle — Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 75 PARIS Ve, France a Respiration during early stages of egg development, especially relation with oxidative phosphorylations as shown by the action of 2,4-dinitrophenol and some inhibitors of respiration. Salmo irideus, S. fario (Teleostei) (with Ch. DEVILLERS) b Descriptive study of the developing nuclei in the prosencephalon. Salmo irideus (Teleostei) c Teratogenesis in the prosencephalon after treatment of the blastula with 2,4-dinitrophenol. Same species as b (with P. CLAIRAMBAULT) CHANDEBOIS, Miss R. Dr., Prof. — Lab. de Morphogenet. Anim., Centre Saint-Charles, Univ. de Provence, Place Victor Hugo, 13 MARSEILLE 3e, France a Activity of the undifferentiated material in normal and regenerating animals (electron microscopy, tissue culture, irradiation). Dugesia subtentaculata, D. gonocephala (Turbel~ laria) b Equilibria between the two cell types of the undifferentiated tissue and equilibria between this undifferentiated tissue and the differentiated cells. Same species as a CHANG. C. Y. Ph. D. — Inst, of Zool., Acad. Sinica, Haitien, PEKING (53) People's Rep. of China • CHANTURISHVILI, P. S. Dr.biol.sci., Prof. — Dept. of Anim. Embryol., Inst, of Zool., Acad, of Sci. of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. a Reactivity of embryonic intestine to antigens. Gallus domesticus (Aves) CHARNIAUX (COTTON), Mrs. H. Dr.es Sci., Prof. — Lab. d'Evol., Fac. des Sci. de Paris, 105 Bd. Raspail, 75 PARIS Vie, France • — Lab. de Genet. Evol. et de Biometrie, C.N.R.S., 91 GIF-sur-YVETTE, France CHASE, H. B. Ph.D., Prof. — Div. of Biol, and Med. Sci., Brown Univ., PROVIDENCE, R.I. 02912, U.S.A. • a Developmental genetics of hair growth phases, using mutants hairless (hr), Rex (Re), and satin (sa). Mus musculus (Rodentia) b Hereditary anophthalmia as influenced by teratogens. Mus musculus (Rodentia) c Development and regeneration of wool follicles. Ovis aries (Artiodactyla) CHAUDRY, H. S. D.Phil., Prof. — Dept. of Zool., Univ. of Gorakhpur, GORAKHPUR, (UP.), India CHAYTOR, D. E. B. Ph.D., Prof. — Dept. of Zool., Njala Univ. Coll., Private Mail Bag, FREETOWN, Sierra Leone, W.Africa CHEN, P. S. Dr.phil., Prof. — Zool.-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, 8006 ZURICH, Switzerland • CHENEY, R. H. Sc.D., Prof.(Emer.) — Brooklyn Botanic Garden, 1000 Washington Ave., NEW YORK, Brooklyn, N.Y. 11225, U.S.A. a Retardation effect of dimethylated xanthines on development. Arbacia punctulata (Echinoidea) b Theophylline, theobromine, and caffeine effects on fecundity and development. Rattus norvegicus (Rodentia) c Effect of di- and trimethylated xanthines on root tip growth. Allium spec. (Liliaceae) d Effect of methylated xanthines on the oxygen consumption of the fertilized egg and early embryology. Arbacia punctulata (Echinoidea) e Effect of x-ray and ultra-violet irradiation on development of methylated xanthine- treated eggs. Arbacia punctulata (Echinoidea) f Effect of caffeine on development. Rana pipiens (Anura) g Developmental effects of chemical inhibitors of protein synthesis. Arbacia punctulata (Echinoidea) CHENG, Th. C. Ph.D., Prof. — Dept. of Biol., Lehigh Univ., BETHLEHEM, Pa. 18015, U.S.A. a Embryology and differentiation. Fasciola hepatica. Schistosoma mansoni, S. haematobium (Trematoda) , H ymenolepis diminuta, H. nana (Cestoda) b Developmental pathology: genetic basis of abnormal growth, cellular differentiation and 34 reaction to foreign bodies. Crassostrea virginica (Lamellibranchia) , Helisoma trivolvis, H. ducyi normale, Biomphalaria glabrata, Bulinus spp. (Gastropoda) c Transplantation biology. Same species as b CHEVALLIER, A. D. Dr.Spec. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Radioautography of differentiation, localization, and migration of neural crest cells. Gallus domesticus (Aves) b The early differentiation of the suprarenal gland in chorioallantoic grafts. Same species as a CHEVREAU, J. P. Dr.en Med., Prof. — Dept. d'Histol.-Embryol., Fac. de Med., 6 rue du General Sarrail, 94 CRETEIL, France a Myelinization of brain. Oryctolagus cuniculus (Lagomorpha) b Histogenesis and differentiation of the central nervous system. Rattus spec. (Rodentia) CHIARODO, A. J. Ph.D., Prof. — Dept. of Biol., Georgetown Univ., 37th & O. St. N.W., WASHINGTON, D.C. 20007, U.S.A. a Neuroembryology (experimental morphology). Sarcophaga bullata (Diptera) CHIBON, P. Dr.es Sci. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Nuclear labelling of embryonic cells (autoradiography). Pleurodeles waltlii, Trituvus alpestris (Ucodela) b Morphogenetic abilities and differentiation of neural crest cells. Same species as a c Origin and differentiation of teeth. (Amphibia) d Genetic and embryonic effects of high nuclear labelling. (Amphibia) e Cellular proliferation in the embryo: kinetics and differentiation. (Amphibia) CHIEFFI, G. M.D., Prof. — Lab. di Anat. Comp., 1st. di Istol. ed Embriol., Univ. di Napoli, Via Mezzocannone 8, 80134 NAPOLI, Italy • CHITNIS, P. S. Ph.D. — Cell Research Lab., Dept. of Zool., Nowrosjee Wadia Coll., POONA-1, India CHOROSZEWSKA-LELICIfiSKA, Mrs. A. Dr.biol. — , Lab. of Embryol., Dept. of Obstet. and Gynecol. II, Med. School, ul.Karowa 2, WARSZAWA 40, Poland a Nutrition mechanisms of preimplantation stages; the concentration of free amino acids in uterine secretion, blastocyst fluid, and blood serum; effect of steroid hormones on biochemical composition of uterine secretion. Rattus spec. (Rodentia), Oryctolagus cuniculus (Lagomorpha) CHOUARD, C. H. — Lab. d'Anat., Univ. Paris V - Rene Descartes, 45 rue des Saints Peres, 75 PARIS Vie, France a Brain stem and acoustic tracts CHRISPEELS, M. J. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O. Box 109, LA JOLLA, Calif. 92037, U.S.A. a Biochemical processes in development: mechanism of protein secretion and cell wall formation in phloem explants and cell culture. Nicotiana tabacum (Solanaceae), Daucus carota (Umbelliferae) CHRIST, B. Dr.med. — Inst, fur Anat. der Ruhr-Univ. Bochum, Postfach 2148, 463 BOCHUM, W.Germany a Development of vertebral column. Gallus domesticus (Aves) b Differentiation of somites. Gallus domesticus (Aves) CHUANG HSIAO HUI Dr.rer.nat.habil. — Lab. of Developm. Physiol., Inst, for Exper. Biol., Acad. Sinica, 320 Yo Yang Rd., SHANGHAI, People's Republ. of China • CHURCH, N. S. Ph.D. — Research Station, Res. Branch, Canada Agric. Univ. Campus, SASKATOON, Sask., Canada CHURCH, R. B. Ph.D.,' Prof. — Div. of Med. Biochem., Fac. of Med., Univ. of Calgary, CALGARY 44, Alta., Canada a Study of messenger RNA synthesis by RNA/DNA molecular hybridization in developing mouse embryo. Mus musculus (Rodentia) b Analysis of RNA transcription by repetitive and non-repetitive DNA in developing neural tissue. Mus musculus (Rodentia), Oryctolagus cuniculus (Lagomorpha) CIHAK, R. MUDr. — Dept. of Anat., Charles Univ., U nemocnice 3, PRAHA 2, Czechoslo- vakia a Prenatal development of muscles. Homo sapiens (Primates) CLAIRAMBAULT, P. Dr.es Sci. — Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 75 PARIS Ve, France a Morphological and experimental studies of brain development. Discoglossus pictus, Rana pipiens, Bufo regularis, Rhacophorus spec, Nectophrynoides occidentalis (Anura), Pleurodeles waltlii (Urodela) b Teratogenesis in the prosencephalon after treatment of the blastula with 2,4-dinitrophenol. Salmo irideus (Teleostei) (with M. CHANCONIE) CLARK (LATTO), Mrs. J. C. B.Sc. — Dept. of Zool., The Univ., GLASGOW W.2, Scotland, U.K. CLASON, A. E. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. 35 a Biochemistry of early development. Rana pipiens, Xenopus laevis (Anura), Bombyx mori and other spp. (Lepidoptera) (with D. D. BROWN, P. M. LIZARDI, K. SUGIMOTO and Y. SUZUKI) CLAVERT, J. M. J. Dr.es Sci., Prof. — Inst. d'Embryol., Fac. de Med., 1 1 rue Humann, 67 STRASBOURG, France • a Le determinisme de la symetrie bilaterale. (Pisces; Reptilia; Aves) b Chimioteratogenese (cortisone, antimitotiques). (Aves; Mammalia) CLAYTON (FREEDMAN), Mrs. R. M. M.A. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. • a Metabolism and immunochemistry of regulation and structure of lens proteins and lens development. Xenopus laevis (Anura), Gallus domesticus (Aves) (with J. C. CAMPBELL and D. E. S. TRUMAN) b Immunochemistry of retina and eye cup. Xenopus laevis (Anura) (with J. C. CAMP- BELL) c Mutants affecting the eye and lens. Mus musculus (Rodentia) (with J. C. CAMPBELL) CLAXTON, J. H. Ph.D. — Dept. of Agric. Biol., Univ. of New England, ARMIDALE, N.S.W. 2351, Australia CLEFFMANN, G. Dr., Prof. — II. Zool. Inst, der Univ., Wartweg 95, 63 GIESSEN, W^Germany a Synthesis of macromolecules in relation to the cell cycle. Tetrahymena pyri[ormis (Ciliata) CLEGG, E. J. M.D., Ph.D. — , Dept. of Human Biol, and Anat., Univ. of Sheffield, Western Bank, SHEFFIELD 10, England (no embryological work in progress) CLEGG, J. S. Ph.D., Prof. — Dept. of Biol., Univ. of Miami, CORAL GABLES, Fla. 33124, U.S.A. a Biochemistry and physiology of cryptobiosis in the embryo (major emphasis on metabolism of trehalose, glycerol, and other carbohydrates). Artemia salina (Anostraca, Crustacea) b Protein and nucleic acid metabolism during embryonic development (major emphasis on in vitro protein synthesizing system, analysis of polysome formation and breakdown, and synthesis of various RNA species). Same species as a CLEMENT, A. C. Ph.D., Prof. — Dept. of Biol., Emory Univ., ATLANTA, Ga. 30322, U.S.A. - • a Experimental analysis of early embryonic determination. Ilyanassa obsoleta (Gastropoda) b Cytochemistry and physiology of early development. Same species as a CLERMONT, Y. Ph.D., Prof. — Dept. of Anat., Med. School, McGill Univ., MONTREAL 2, Que., Canada a Growth and renewal of the spermatogonial population in prepuberal animals. Rattus norvegicus (Rodentia) CLEVER, U. Dr. — Dept. of Biol, Purdue Univ., LAFAYETTE, Ind. 47907, U.S.A. • CLEWE, Th. H. M.D. — Dept. of Reprod. Physiol., Delta Region. Primate Research Center, Tulane Univ., COVINGTON, La. 70433, U.S.A. a Physiology of gamete and zygote transport in the female. Oryctolagus cuniculus ( Lagomorpha) , (Primates) CLUTTER (SUSSEX), Mrs. M. E. Ph.D. — Dept. of Biol., Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. a Experimental embryogenesis including fine structural changes of cell surfaces, structural and functional aspects of polytene chromosomes. Phaseolus coccineus (Papilionaceae) COALSON, R. E. Ph.D., Prof. — Dept. of Anat. Sci., Univ. of Oklahoma Med. Center, 801 NE 13th St., OKLAHOMA-City, Okla. 73104, U.S.A. a Studies on insulin in the developing pancreas. Gallus domesticus, Columba livia (Aves), Rattus norvegicus, Cavia porcellus (Rodentia) COCK, A. G. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON S09 5NH, England a Developmental genetics of body shape and size. Artemia salina (Anostraca, Crustacea), Gallus gallus (Aves) COGNETTI, G. — 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALER- MO, Italy a Histones and other nuclear proteins in oocytes and during embryology. Paracentrotus lividus (Echinoidea) b Biosynthesis of ribosomal proteins during oogenesis. Paracentrotus lividus (Echinoidea) COHEN. B. B. B.Sc, Ph.D. _ M.R.C. Clin, and Popul. Cytogenet. Unit, Western Gen. Hosp., Crewe Rd., EDINBURGH, Scotland, U.K. COHEN, M. H. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicaqo, CHICAGO, 111. 60637, U.S.A. COHEN, Ph. P. Ph.D., M.D., Prof. — Dept. of Physiol. Chem., Univ. of Wisconsin, 1215 Linden Drive, MADISON, Wis. 53706, U.S.A. a Biochemical aspects of differentiation in liver during metamorphosis (enzyme changes and induction; RNA, DNA and histone changes; biochemical mechanism of thyroxine action as an inducer) . Rana catesbeiana (Anura) 36 COHEN, S. Ph.D., Prof. — Dept. of Biochem., Sch. of Med., Vanderbilt Univ., NASH- VILLE, Tenn. 37203, U.S.A. • COHN, S. A. Ph.D., Prof. — Dept. of Anat, Med. Units, Univ. of Tennessee, 800 Madison Ave., MEMPHIS, Tenn. 38103, U.S.A. a Histology of the developing periodontium. (Primates) COLE, M. B., Jr. Ph.D. — Dept. of Biol. Sci., Oakland Univ., ROCHESTER, Mich. 48063, U.S.A. a Oogenesis, especially nucleocytoplasmic interactions in primary oocytes (cytochemistry, electron microscopy, autoradiography) . Rana pipiens (Anura) b The effects of electromagnetic radiation on mitosis of neuroblasts, (organ culture, auto- radiography, metabolic inhibitors). Chortophaga viridifasciata (Orthoptera) COLE, R. J. Ph.D. — Sch. of Biol. Sci., Univ. of Sussex, Falmer, BRIGHTON BN1 9QG, England a Physiology, biochemistry, and cell kinetics of the development of erythropoietic systems, both normal and mutant. Mus musculus (Rodentia) b Regulation of cytodif ferentiation during in vitro myogenesis COLEMAN. J. R. Ph.D., Prof. — Div. of Biol, and Med. Sci., Brown Univ., PROVIDENCE, R.I. 02912, U.S.A. • a Differentiation of embryo cells in culture, particularly skeletal muscle, cartilage and retinal pigment cells: synthesis of specific proteins (myosin, collagen), glycosaminoglycans (chondroitin sulfate), synthesis and processing of RNA, and the effects of nucleoside analogs on cellular differentiation. Gallus domesticus (Aves) COLEMAN, R. D. D.D.S., Prof. — Dept. of Dental Anat., School of Dent., Univ. of California Med. Center, 3rd & Parnassus Aves., SAN FRANCISCO, Calif. 94122, U.S.A. a The possible role of sulfated mucopolysaccharides in normal and cleft palate development by employing radioactive sulfur (palatal defects induced by a transitory maternal deficiency of folic acid) . Rattus norvegicus (Rodentia) b Uptake of tritiated thymidine in normal and cleft palate development (palatal defects induced by a transitory maternal deficiency of folic acid). Same species as a c Oro-facial abnormalities induced by the folinic acid antagonist pyrimethamine. Mammalia) COLLENOT, A. Dr.es Sci., Prof. — Lab. d'Embryol., Univ. de Paris VI, 9 quai St.Bernard, 75 PARIS Ve, France • COLLIER, J. R. Ph.D., Prof. — Dept. of Biol., Brooklyn Coll., Bedford Ave. & Ave. H, NEW YORK, Brooklyn, N.Y. 11210, U.S.A. • a Nucleic acid and protein synthesis especially transcription and regulation of the genome during embryogenesis: 1. RNA and protein synthesis during early development; 2. the role of DNA-dependent RNA synthesis in embryogenesis. Ilyanassa obsoleta (Gastropoda) COLLIN, J. -P. Dr.es Sci. — Lab. de Biol. Anim., Univ. Clermont-Ferrand, Complexe Sci. Cezeaux, 24 Av. des Landais, 63 AUBIfiRE, France a Development of the pineal gland (electron microscopy). (Cyclostomata; Reptilia; Aves; Mammalia) b Embryogenesis and phylogenesis of the pineal gland. (Vevtebrata) c Proteins in the embryonic pineal gland (autoradiography and electron microscopy). (Vevtebrata) d Indolamines and catecholamines in the embryonic pineal gland. (Vertebrata) COLLIN. W. K. Ph.D. — Dept. of Med. Microbiol, and Immunol., School of Med., Univ. of California, LOS ANGELES, Calif. 90024, U.S.A. a Electron microscopy of developmental stages. Hymenolepis citelli (Cestoda), Brugia pahangi (Nematoda) b Morphology of third larval stage. Brugia pahangi (Nematoda) COLLINS, M. F. Ph.D. — Dept. of Anat., Health Center, The Univ. of Connecticut, HART- FORD, Conn. 06105, U.S.A. a Cellular surface properties and morphogenetic movements. Gallus domesticus (Aves), Mus musculus (Rodentia) COLLN, Kl. Dr.rer.nat. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W.Germany a Hormonale Steuerung des Proteinstoffwechsels in der Metamorphose. Ephestia kuhniella (Lepidoptera) COLOMBERA, — 1st. di Biol. Anim., Univ. di Padova, Via Loredan 10, 35100 PADOVA, Italy a Comparative spermatogenesis. (Enterogona, Ascidiacea) (with M. SALA) COLOMBO, G. Dr.biol., Prof. — 1st. di Zool., Univ. di Ferrara, Via Previati 24, 44100 FERRARA, Italy • COLOMBO, L. Dr.biol.sci. — 1st. di Biol. Anim., Univ. di Padova, Via Loredan 10, 35100 PADOVA, Italy (no embryological work in progress) COLWIN, A. L. Ph.D., Prof. — Dept. of Biol., Queens Coll. of the City Univ. of New York, NEW YORK, Flushing, N.Y. 11367, U.S.A. • a Fertilization: sperm-egg association and zygote formation; cell contact and adhesion; fusion of plasma membranes; egg envelopes; lytic changes; cortical changes; sperm- 37 blastomere association (living material and electron microscopy) . ( Enteropneusta; Echinodermata; Annelida, etc.) (with L. H. COLWIN) COLWIN, Mrs. L. HUNTER Ph.D., Prof. — Dept. of Biol., Queens Coll. of the City Univ. of New York, NEW YORK, Flushing, N.Y. 11367, U.S.A. • a Fertilization: sperm-egg association and zygote formation; cell contact and adhesion; fusion of plasma membranes; egg envelopes; lytic changes; cortical changes; sperm-blastomere association (living material and electron microscopy) (Enteropneusta; Echinodermata; Annelida, etc.) (with A. L. COLWIN) COMOGLIO, P. M. M.D. — Cell and Molecular Biol. Lab., Dept. of Anat., Univ. of Torino, Corso M. D'Azeglio 52, 10126 TORINO, Italy a Cell membrane differentiation; immunochemistry of surface macromolecules. Mus musculus (Rodentia) CONAN, G. Y. Lic.es Sci. — Lab. de Biol. Invert. Marins, Museum Natl. d'Hist. Nat. Paris, 57 rue Cuvier, 75 PARIS Ve, France CONNELLY, T. G. Ph.D. — Biol. Div., Oak Ridge Natl. Lab., P.O.Box Y, OAK RIDGE, Tenn. 37830, U.S.A. a Influence of the pituitary on lens regeneration in the adult in vivo and in vitro. Notophthalmus (Triturus) viridescens (Urodela) CONTE, G. M.D. — 1st. di Anat. e Istoembriol., Univ. di Pisa, Via Roma 55, 56100 PISA, Italy CONTI, G. M.D., Prof. — Inst, of Histol. and Gen. Embryol., Univ. de Fribourg, 1 rue Gockel, 1700 FRIBOURG, Switzerland COOKE, J. Ph.D. — Sch. of Biol. Sci., Univ. of Sussex, Palmer, BRIGHTON BN1 9QG, England a Dynamic properties of the fields of information in very early stages, and leading to the initial formation of patterns of cellular differentiation; methods: transplantations e.g. of organisers and rhythmical electrical stimulation by electrodes. Xenopus laevis and other spp. (Amphibia) b The behaviour of growth cones of neurons studied in long term culture of embryonic brain and retina. Xenopus laevis (Anura) CORLISS, C. E. Ph.D., Prof. — Dept. of Anat., Med. Units, Univ. of Tennessee, 800 Madison Ave., MEMPHIS, Tenn. 38103, U.S.A. • a Radioautography of nuclear migration in neural epithelium of normal and teratogen- treated embryos. Gallus domesticus (Aves) CORNEC, J. P. Dr.spec. — Lab. de Morphogenet. Anim., Centre Saint Charles, Univ. de Provence, Place Victor Hugo, 13 MARSEILLE 3e, France a Les facteurs qui determinent l'absence de regeneration. (Hirudinea) CORNER, G. W. M.D., D.Sc, Prof. (Emer.) — American Philosoph. Soc, 104 South 5th St., PHILADELPHIA, Pa. 19106, U.S.A. • CORNER, M. A. Ph.D. — Netherl. Centr. Inst, for Brain Research, IJdijk 28, AMSTER- DAM-O., Netherlands a Development of central nervous system function (electrophysiology) : 1. Electroencephalogram and its relation to embryonic behaviour and neuronal activity patterns; 2. Chemical energy production and utilization during critical periods of functional development in the embryo; 3. Neurological bases for the maturation of spontaneous and reflex patterns of movement (brain stimulation and lesion studies; electrical activity in explants) . Gallus domesticus (Aves) b Role of neural function in the embryonic development of the central nervous system (electrophysiology and neurohistology). Xenopus laevis (Anura), Gallus domesticus (Aves) CORNUZ, Mrs. R. — Dept. de Biol. Molec, Inst. Suisse de Rech. Experim. sur le Cancer, rue Bugnon 21, 1011 LAUSANNE, Switzerland a Red cell differentiation in erythroblastosis virus-induced anaemia. Gallus domesticus (Aves) (with S. P. MODAK and K. SCHERRER) CORSIN. Miss J. Dr.es Sci. — Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 75 PARIS Ve, France a Experiments on cartilage and bone development in the skull. Pleurodeles waltlii (Urodela) COSTA, M. M.D. — Dept. of Anat., Univ. of Turin, Corso M.d'Azeglio 52, 10126 TORINO, Italy COSTANZO, G. — 1st. Idrobiol. e Pescicolt, Univ. di Messina, Via dei Verdi 75, 98100 MESSINA, Italy a Ciclo vitale. Lichomolgus spp. (Cyclopoida, Copepoda, Crustacea) b Larval development in laboratory culture. Modiolicola insignis (Cyclopoida, Copepoda, COSTELLO, D. P. Ph.D.. Prof. — Dept. of Zool., Univ. of North Carolina, CHAPEL HILL, N.C. 27514, U.S.A. • COULOMB (GAY), Mrs. R. Lic.es Sc. — . Lab. de Morphogenet. Anim., Centre Saint Charles, Univ. de Provence, Place Victor Hugo, 13 MARSEILLE 3e, France a Variations des potentialites de regeneration et hemiheteromorphoses. Eiseniella tetraedra (Oligochaeta) 38 b Influence de l'ablation des ganglions cerebroids sur la regeneration posterieure. Same species as a COULOMBRE, A. J. Ph.D. — Lab. of Vision Research, Natl. Eye Inst., Natl. Inst, of Health, BETHESDA, Md. 20014, U.S.A. • a Development of the eye: 1. Growth and morphogenesis; 2. Role of embryonic collagen; 3. Establishment of retinotectal connections. Gallus domesticus (Aves) (with J. L. COU- LOMBRE) b Development of ocular skeleton. Gallus domesticus (Aves) (with J. L. COULOMBRE) COULOMBRE (LACY), Mrs. J. L. B.S. — Lab. of Vision Research, Natl. Eye Inst., Natl. Inst, of Health, BETHESDA, Md. 20014, U.S.A. a Development of the eye: 1. Growth and morphogenesis; 2. Role of embryonic collagen; 3. Establishment of retinotectal connections. Gallus domesticus (Aves) (with A. J. COU- LOMBRE) b Development of ocular skeleton. Gallus domesticus (Aves) (with A. J. COULOMBRE) COULON (BUBLEX), Mrs. M. — Lab. de Biometrie, Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Etude de la restauration apres irradiation X dans ses rapports avec le determinisme de la mue. Bombyx mori (Lepidoptera) COULSON, Mrs. P. B. Ph.D. — Dept. of Zool. and Entomol., Univ. of Tennessee, KNOX- VILLE, Tenn. 37916, U.S.A. a Primary interactions and essential steps in sperm capacitation and egg fertilization reactions. Rana pipiens (Anuva) COUNCE (NICKLAS), Mrs. S. J. Ph.D. — Dept. of Zool., Duke Univ., DURHAM, N.C. 27706, U.S.A. a Embryo culture in vitro; experimental analysis of embryogenesis; developmental gene- tics and physiology; cytogenetics, including puffing patterns at various developmental stages in different tissues. Miastor spec. (Cecidomyiidae, Diptera) b Genetics of egg structure (inheritance of egg pattern in different strains and species). Drosophila hydei and relatives, D. melanogaster (Diptera) c Morphological and physiological effects of female-sterility genes. Same species as b COUPE, R. J. F. Lic.es Sci. — Lab. dAnat. Comp., Fac. des Sci., 7 quai St. Bernard, 75 PARIS Ve, France COUSINEAU, G. H. Ph.D. — Lab. de Biol. Molec, Dept. de Biol., Univ. de Montreal, C.P. 6128, MONTREAL 3, Que., Canada a Measurement of the amount of translatable RNA in the presence of bentonite, and characterization of the proteins produced in vitro. Arbacia punctulata, Strongy- locentcotus purpuvatus, Lytechinus pictus (Echinoidea) COWAN, W. M. Ph.D., Prof. — Dept. of Anat, Sch. of Med., Washington Univ., ST. LOUIS, Mo. 63110, U.S.A. COWARD, S. J. Ph.D., Prof. — Dept. of Anat., Harvard Med. Sch., 25 Shattuck St., BOSTON, Mass. 02115, U.S.A. CO WE. R. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Computer simulation of biological patterns, (with C. H. WADDINGTON) CRACIUN, Mrs. O. L.Sc. — Cat. de Biol.-Histol., Inst, de Med. s,i Farmacie, St. Pasteur 6, CLUJ, Rumania a Affrontation d'organes embryonnaires in vitro. Rattus rattus (Rodentia) b Effets des hepatectomies sous-totales repetees. Rattus spec. (Rodentia) CRAGG, B. G. Ph.D. — Dept. of Physiol., Monash Univ., CLAYTON, Vict. 3168, Australia a Development of synapses in visual cortex. Felis domestica (Carnivora) CRAIG, D. A. Ph.D. — Dept. of Entomol., Univ. of Alberta, EDMONTON, Alta., Canada a Descriptive embryology. Anopheles stephensi, Gymnopais spec, Neocurupira chiltoni, Simulium venustum, Prosimilium susanae (Nematocera, Diptera) CRAIG, G. B. Dr. — Dept. of Biol., Univ. of Notre Dame, NOTRE DAME, Ind. 46556, U.S.A. CRAWFORD, R. B. Ph.D., Prof. — Dept. of Biol., Trinity Coll., HARTFORD, Conn. 06106, U.S.A. a The relationship of the synthetic pathways of adenosine triphosphate to morphogenesis and differentiation. Fundulus heteroclitus (Teleostei) , Amby stoma maculatum (Utodela) b The kinetics of RNA synthesis during early embryogenesis, especially in relation to energetics metabolism. Same species as a c Activation of hexokinase activity in embryos. Ambystoma maculatum (Uvodela) d Relationship of free amino acid pool to protein synthesis in embryos. Same species as a CRICK, F. H. C. Ph.D. — Lab. of Molec. Biol., Med. Res. Council, Hills Rd., CAMBRIDGE CB2 2QH, England a Positional information. Rhodnius prolixus (Hemiptera) b Fibrillar proteins in the cytoplasm, c Proteins in or near cell membranes. CRIPPA, M. M.D. — Lab. of Molec. Embryol., C.N.R., Via Toiano 2, 80072 ARCO FELICE (Napoli), Italy • a Control of transcription. Xenopus laevis (Anura) 39 CRISP, D. J. Sc.D., F.R.S., Prof. — Marine Sci. Labs., Univ. Coll. of N.Wales, MENAI BRIDGE, Anglesey, Wales, U.K. a Developmental biology. (Cirripedia. Crustacea) CRISTEA, Miss M. M.D. — Cat. de Biol.-Histol., Inst, de Med. s,i Farmacie, St. Pasteur 6, CLUJ, Rumania a Influence d'alcool etylique sur le developpement du foie embryonnaire (histochimie et biochimie) Rattus spec. (Rodentia) CROISILLE, Y. Dr. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Developmental, kinetic and immunological studies of enzymes (lactic dehydrogenases, hypoxanthine dehydrogenase, esterases) in different tissues. Gallus gallus (Aves) b Immunohistological studies of the first appearance of organ-specific proteins during kidney differentiation. Same species as a c Organogenesis of the mesonephros. Same species as a (with M. GUMPEL and C. S. MARTIN) d Purification of factors stimulating growth of malignant tumours in in vitro culture. Homo sapiens (Primates) (with Et. WOLFF, Em. WOLFF, and J. SMITH) CROIZAT, B. Dr.es Sci. — Inst, de Biol. Moleo, Fac. des Sci., Tour 43, 9 quai St.Bernard, 75 PARIS Ve, France a Expression of differentiation in liver cells in culture: aldolase isozymic transition, plasma protein secretion and bile acids conjugation; hormone action on liver cells in culture. Rattus spec. (Rodentia) CROSS, M. H. Ph.D. — Lab. of Reprod. Physiol., Dept. of Anim. Biol.. School of Vet. Med., Univ. of Pennsylvania, 530 Lippincott Bldg., 25th & Locust Sts. PHILADELPHIA, Pa 19103, U.S.A. a Short-circuit current versus net ionic flux across the 6-day trophoblast membrane in order to identify the specific ions actively transported across the blastocoele wall. Rattus spec. (Rodentia) b Relationship between active ionic transport and fluid accumulation in the expanding blastocyst. Rattus spec. (Rodentia) CROSS (FIRMIN) Mrs. P. C. Ph.D. — Lab. of Reprod. Physiol., Dept. of Anim. Biol., School of Vet. Med., Univ. of Pennsylvania, 530 Lippincott Bldg., 25th & Locust Sts. PHILADELPHIA, Pa. 19103, U.S.A. a Oocyte maturation: improvement of culture media; changes in oocyte metabolism (RNA, protein, energy) studied by isotope methods. Mus musculus, domestic animals, Homo sapiens (Mammalia) b Factors responsible for successful fertilization in vitro. Same species as a CROWELL, P. S. Ph.D., Prof. — Dept. of Zool., Indiana Univ., BLOOMINGTON, Ind. 47401, U.S.A. • CRUZ, A. R. M.D., Ph.D. — Dept. de Morfol. Hum. Func. e Aplic, Univ. de Sao Paulo, C.P. 301, RIBEIRAO PRETO, S.P., Brazil CSABA, G. M.D., Prof. — Inst, of Histol. and Embryol., Med. Univ., Tiizolto u. 58, BUDA- PEST IX, Hungary a Experimental and physiological embryology; teratogenesis. Rattus rattus (Rodentia) b Developmental genetics. Same species as a c Molecular biology of mast cell formation. Same species as a CSILLIK, B. M.D., Prof. — Dept. of Anat, Univ.Med.School, Kossuth L.sgt. 40, SZEGED, Hungary a Developmental histochemistry of the archicerebellar cortex. Rattus rattus (Rodentia) (with P. KASA) b Developmental histochemistry and electron microscopy of the vegetative ground plexus. Rattus rattus (Rodentia) (with E. KNYIHAR) c Development of the adrenergic inhibitory terminals in autonomic ganglia: fluorescence microscopy and electron microscopy. Rattus rattus (Rodentia) (with K. KALMAN and E. KNYIHAR) CUMINGE, Miss D. Lic.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Organogenese sexuelle precoce de 1'embryon. Gallus gallus (Aves) (with R. DUBOIS) CURTIS, A. S. G. Ph.D., Prof. — Dept. of Cell Biol., Univ. of Glasgow, GLASGOW W.2, Scotland. U.K. • a Structure and physical chemistry of embryonic cell surfaces. (Vertebrata) b Segregation mechanisms in reaggregates of embryonic cells. (Vertebrata) c Differentiation of cells in culture. (Vertebrata) d Adhesion mechanisms in embryonic cells. (Porifera; Vertebrata) CURY. G. Agr.Phil., Lic.es Sci — Lab. d'Embryol., Univ. de Nancy I, 31 rue Lionnois, 54 NANCY, France a La cytodifferenciation sanguine in vitro. Gallus domesticus (Aves) CUSIMANO (CAROLLO), Mrs. T. D.Sc, Prof. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18. 90123 PALERMO, Italy a The causal development of the mouth. Discoglossus pictus (Anura) 40 CZAPLICKI, J. M.D. — Dept. of Gen. Biol., Silesian Acad, of Med., K. Marksa 19, Rokitnica, ZABRZE 8, Poland CZAPSKA (DZIEKANOWSKA), Mrs. D. Ph.D. — Dept. of Gen. Biol., Silesian Acad, of Med., K.Marksa 19, Rokitnica, ZABRZE 8, Poland CZIHAK, G. Dr.phil., Prof. — Lehrkanzel fur Genet, und Entw.biol. der Univ. Salzburg, Porsche Str. 8, A-5020 SALZBURG, Austria a Molecular biology of early development. Paracentrotus lividus, Psammechinus miliaris (Echinoidea) b Cleavage pattern. Same species as a c Regulation of mitosis. Same species as a d Parthenogenetic activation of development. ((Echinoidea; Teleostei) CZOEOWSKA, Miss R. K. Dr. — Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Krakowskie Przedmies'cie 26/28, WARSZAWA 64, Poland a Cytochemical electron microscopy of germinal cytoplasm. Xenopus laevis (Anura) b Nuclear transplantation. Same species as a CZYZEWSKA-LIEBHART, Mrs. M. M.D. — Lab. of Pathol. Anat., Dept. of Obstet. and Gynecol. II, Med. School, ul.Karowa 2, WARSZAWA 40, Poland a Developmental stages and morphology of the placenta in pathological pregnancies (histology, histochemistry, immunofluorescence, electron microscopy). Homo sapiens (Primates) b Developmental morphology of foetal organs in connection with foetal pathology (histology, histochemistry) . Same species as a DABAGIAN (ERAMICHEVA), Mrs. N. V. Cand.biol.sci. — Chair of Embryol., Biol. Fac, State Univ. of Moscow, Lenin Hills, MOSCOW B-234. U.S.S.R. a Autoradiography of cell populations in regeneration of the retina. Rana temporaria (Anura) DADOUNE, J. P. Dr.en Med. — Lab. d'Histol.-Embryol. B, Fac. de Med., 45 rue des Sts. Peres, 75 PARIS Vie, France DAEMEN, F. J. M. Ph.D. — Dept. of Biochem., Univ. of Nijmegen, Geert Grote Plein N. 21, NIJMEGEN, Netherlands a Development of the rhodopsin cycle; rhodopsin, electroretinogram and morphology from birth till maturity. Canis domesticus (Carnivora) (with S. L. BONTING) DAIKOKU, Sh. M.D., Ph.D., Prof. — Dept. of Anat., Tokushima Univ., 3 chome, Kuramoto- cho, TOKUSHIMA, Japan a Experimental embryology of the endocrine organs. Rattus rattus (Rodentia) b Embryology of the motor and sensory nerve terminals. Homo sapiens (Primates) c Functional development of the hypothalamo-hypophysial system. Rattus rattus (Rodentia) d Functional development of the intestinal tubes. Homo sapiens Primates) DAILLIE, J. Dr.es Sci. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Cytological and physiological differentiation of the silk gland. Bombyx mori (Lepidoptera) DAIMON, T. M.Agric. — Dept. of Anat., School of Med., Tokyo Med. and Dental Univ. 1-5-45, Yushima, Bunkyo-ku, TOKYO, 113 Japan a Effects of hormones on morphogenesis of bone in vivo and in vitro. Gallus domesticus (Aves) b Transplantation of liver. Rana catesbeiana (Anura) DALCQ, A. M. M.D., Prof. — U.R.E.D., Univ. libre de Bruxelles, 97 rue aux Laines, 1000 BRUXELLES, Belgium • a Detection of various phosphatases and dehydrogenases in testicular tissue. (Mammalia) b Enzymatic equipment of eggs during tubal period of development. (Rodentia) DALLMAN, P. R. M.D. -, Dept. of Pediat, Univ. of California, SAN FRANCISCO, Calif. 94122, U.S.A. DALTON, H. C. Ph.D., Prof. — Dept. of Biol., Coll. of Sci., Pennsylvania State Univ., 208 Life Sciences I, UNIVERSITY PARK, Pa. 16802, U.S.A. • a Gene control of chromatophore development. Ambystoma mexicanum (Urodela) D'AMELIO, V. Ph.D., Prof. — 1st. di Istol. ed Embriol. Univ. di Palermo. Via Archirafi 20, 90123 PALERMO, Italy • a Formation and structure of hemoglobin. Gallus spec. (Aves) b Antigenic differentiation of red blood cell membrane. Gallus spec. (Aves) DAMERON, Miss F. Dr.es Sci. — Inst. d'Embryol. Exper. du Coll. de France et du C.N.R.S., 11 Place M. Berthelot, 75 PARIS Ve, France • a Morphogenese du poumon: 1. determinisme de la maturation des structures specifiques de l'epithelium (ultrastructure) ; 2. evolution du metabolisme du tissu pulmonaire (biosyn- these des lipides, activite enzymatique) ; 3. influence de mesenchymes heterologues sur revolution ultrastructurale de l'epithelium. Gallus gallus (Aves) (avec L. MARIN) DAMJANOV, I. — Inst, of Biol., Univ. of Zagreb, §alata 3, 41001 ZAGREB, Yugoslavia a Preimplantation and early postimplantation stages; autoradiography, histochemistry, electron microscopy. Rattus norvegicus, Mus musculus (Rodentia) (with N. SKREB and D. SOLTER) b Differentiation of early postimplantation stages under the kidney capsule, teratocarcino- genesis, nature of embryonic carcinoma cells; transplantation, electron microscopy. Mus musculus (Rodentia) (with N. SKREB and D. SOLTER) 41 c Urethan teratogenesis in early embryos (histochemistry, electron microscopy). Same species as b (with D. SOLTER) DAN, Mrs. J. C. Ph.D. — Embryol. Sect., Dept. of Biol., Ochanomizu Univ., 2-1-1 Otsuka, Bunkyo-ku, TOKYO, 112 Japan • a Acrosome formation; chemical characterization of acrosomal components; role of Golgi apparatus during spermiogenesis. Mytilus edulis (Lamellibranchia) , (Echinoidea,Asteroidea, Ophiuroidea) , Oryzias latipes (Teleostei) b Mechanism of initiation of acrosome reaction. Mytilus edulis (Lamellibranchia), (Echinoi- dea) DAN, K. Ph.D., Prof. — Tokyo Metropolitan Univ., 1-1 chome, Yakumo-machi, Meguro-ku, TOKYO, Japan • DAN (SOHKAWA), Mrs. M. D.Sc. — Lab. of Embryol., Fac. of ScL, Osaka City Univ., 459 Sugimoto-cho, Sumiyoshi-ku, OSAKA, Japan a Mechanism of hemoglobin switch. Rana catesbeiana (Anura) D'ANCONA (LUNETTA), Mrs. G. Ph.D. — 1st. di Istol. ed Embryol., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, Italy a Sulphatases during embryonic development. Ciona intestinalis (Ascidiacea) b Analysis of the ovular mucin. Physa acuta (Gastropoda) DANDRIEU, M. R. Drs. — Lab. of Anat. and Embryol., Free Univ., v.d. Boechorststr. 7, AMSTERDAM, Buitenveldert, Netherlands a Innervation of the capsula articularis coxae in fetuses. Homo sapiens (Primates) b The influence of high titers of antibodies against lens protein fractions in females before mating on fetal lens formation. Oryctolaqus cuniculus (Lagomorpha) DANEHOLT, B. Med.kand. -, Dept. of Histol., Karolinska Inst., S-104 01 STOCKHOLM 60, Sweden DANIEL, J. C, Jr. Ph.D., Prof. — Dept. of Molec, Cell, and Developm. Biol., Univ. of Colorado, BOULDER, Colo. 80302, U.S.A. • DANIELI, G. A. Dr. biol.sci. — 1st. di Biol. Anim., Univ. di Padova, Via Loredan 10, 35100 PADOVA, Italy a Differentiation of salivary glands during larval development. Drosophila hydei (Diptera) DANILOVA, L. V. — Lab. of Developm. Cytogenet., Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Electron microscopy of normal and abnormal spermatogenesis of diploid and polyploid strains. Bombyx mori, B. mandarina (Lepidopteva) (with V. N. VEREISKAYA) DANKMEIJER, J. Med.Dr., Prof. — Anat.-Embryol. Lab., State Univ. of Leiden, Wasse- naarseweg 62, LEIDEN, Netherlands • D'ANNA, T. Dr.nat.sci. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 PALER- MO, Italy a Enzyme activity in embryonic development. (Ascidiacea) b The respiratory metabolism during embryonic development. (Ascidiacea) c Cytoplasmic DNA in eggs. (Ascidiacea) DAS, G. D. Ph.D., Prof. — Dept. of Biol. Sci., Purdue Univ., LAFAYETTE, Ind. 47907, U.S.A. a Proliferation, migration, and differentiation of transplanted neuron precursors and un- differentiated neurons of the brain. (Mammalia) b Neuroembryogenesis and morphogenesis of the cerebellum. Rattus spec. (Rodentia) c Influences of transplanted pia mater on the proliferating and differentiating systems of the developing brain. (Mammalia) d Projections of various neural structures on the spinal cord (neuroembryological and Gud- den's techniques) . (Mammalia) e Electron microscopy of the differentiation and synaptogenesis of the interstitial nerve cells in the pyramidal and infra-pyramidal regions. (Mammalia) D'ASARO, C. N. Ph.D., Prof. — Fac. of Biol., Univ. of West Florida, PENSACOLA, Fla. 32504, U.S.A. a Embryogenesis and organogenesis through metamorphosis. Bittium vatium (Gastropoda), Codakia orbicularis (Lamellibranchia) , Clypeaster rosaceus (Echinoidea) b Spawning and larval development. (Prosobranchia, Gastropoda) DASGUPTA, B. Ph.D., Prof. — Dept. of Zool., Darjeeling Governm. Coll., North Bengal Univ., P. O. DARJEELING, W.Bengal, India DAUGERAS, Miss N. — Lab. d'Anat. Comp., Fac. des Sci. d'Orsay, Batiment 441, 91 ORSAY, France DAUWALDER (RICHARDS), Mrs. M. Ph.D. -, Cell Res. Inst., B.L.220, Univ. of Texas, AUSTIN, Tex. 78712. U.S.A. DAVENPORT, R. Ph.D. — Dept. of Zool., Univ. of Illinois, URBANA, 111. 61801, U.S.A. a Biochemistry of cellular interactions during oogenesis. Oncopeltus fasciatus (Hemiptera) b Gene transcription during pre-larval development. Ascidia nigra (Ascidiacea) DAVID (BOGLI), Mrs. D. Dr.es Sci. — Lab. de Biol. Anim., Univ. de Clermont, B.P. 45, 63 AUBffiRE, France a Organogenese de l'estomac embryonnaire. Oryctolagus cuniculus (Lagomorpha) 42 DAVID, G. Dr.en Med., Prof. — Lab. d'Histol.-Embryol. A, Fac. de Med., 45 rue des Sts. Peres. 75 PARIS Vie, France DAVIDOVA, S. I. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Effect of gonadotropins and changes in the germinal vesicle and in the oocyte cytoplasm during maturation. (Acipenseridae, Chondrostei; Amphibia) (with T. A. DETTLAFF and T. B. AISENSTADT) DAVIDSON, E. H. Ph.D., Prof. — Div. of Biol., Calif. Inst, of Technol., PASADENA, Calif. 91109, U.S.A. a Molecular biology of oogenesis and early development, particularly gene activation. Ilyanassa obsoleta (Gastropoda) , Strong ylocentrotus purpuratus (Echinoidea), Engysto~ mops pustulosus, Xenopus laevis (Anura) DAVIES, D. V. f D.Sc, Prof. — St. Thomas's Hosp. Med. School, LONDON S.E.I, England DAVIS, Ch. C. Ph.D., Prof. — Dept. of Biol., Mem. Univ. of Newfoundland, ST. JOHN'S, Nfld., Canada a Hatching mechanisms in aquatic species. Invevtebrata DAVIS, G. R. F. Ph.D. — Research Station, Res. Branch, Canada Agric, Univ. Campus, SASKATOON, Sask., Canada DAWES, C. M. Ph.D. — Dept. of Physiol, and Chem., Royal Vet. Coll., Royal College Street, LONDON N.W.I, England a Respiration and acid-base regulation. Gallus domesticus (Aves) DAWID, I. Ph.D. — , Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. • a Regulation of synthesis of nuclear and cytoplasmic mitochondrial nucleic acids during early development. Rana pipiens, Xenopus laevis (Anura) (with I. HORAK and G.-J. WU) DBAL?, J. MUDr. — Dept. of Anat., Div. of Appl. and Topogr. Anat., Univ. of Bern. 26 Buehlstr., CH-3012 BERN, Switzerland a Development of coronary arteries under normal and experimental conditions. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) b Heart morphometry. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) DEAN, D. Ph.D., Prof. — Dept. of Oceanography, Ira C. Darling Center for Research, Teaching, and Service, (Marine Lab.), Univ. of Maine, WALPOLE, Me. 04573, U.S.A. a Reproductive biology. Ophioglycera gigantea (Errantia, Polychaeta) DEARDEN, M. B.Sc. — Didsbury Coll. of Educ, Wilmslow Rd., MANCHESTER 20, England a Development of behaviour during ontogeny, and its relation to growth of sense organs, especially behaviour dependent on visual stimuli. Drosophila spec. (Diptera) DE BAVAY, J. M. F. X. B.Sc. — Dept. of Zool., Fac. of Sci., Univ. of New England, ARMIDALE, N.S.W. 2351, Australia DE BEER, Sir G R. Prof. — La Colline, 1880 BEX, Switzerland • DECK, J. D. Ph.D., Prof. — Dept. of Anat., Med. School, Univ. of Virginia, CHARLOT- TESVILLE, Va. 22901, U.S.A. a Cytological changes in regenerating epithelium. Mus musculus (Rodentia) b Cytological changes in muscle after injury. Diemictylus viridescens (Urodela) c Origin and development of cell surface coats. Perophoca viridis (Ascidiacea) DECKER, J. D. Ph.D., Prof. — Dept. of Anat., Coll. of Med., Univ. of Missouri, COLUM- BIA, Mo. 65201, U.S.A. a Neurogenesis and the development of behavior. (Reptilia, Aves, Mammalia) b An atlas of development. Homo sapiens (Primates) DECROLY (BRIERS), Mrs. M. D.Sci.Chim. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des Chevaux, 1640 RHODE-ST-GENESE, Belgium • a Metabolisme des acides nucleiques au cours du developpement embryonnaire. Xenopus laevis (Anura) b Dissociating factor of ribosomes and mechanism of initiation of protein synthesis during development. Xenopus laevis (Anura) c Mesure de la capacite template des acides ribonucleiques au cours du developpement embryonnaire, dans un systeme heterologue et un systeme homologue. Xenopus laevis (Anura) DE FABRO, Miss S. P. Ph.D., Prof. — Inst, de Biol. Celular, Univ. Nac. de Cordoba, Casilla Postal 362, CORDOBA, Argentina a Sorbitoldehydrogenase in the embryo: spectrophotometry, histochemistry, electrophoresis. Gallus gallus (Aves) DE FEO, V. }. Ph.D., Prof. — Dept. of Anat., Univ. of Hawaii, 1960 East- West Rd., HONOLULU, Hawaii 96822, U.S.A. a Blastocyst-endometrial relationship. (Rodentia) b Decidualization. (Rodentia) DE FOSSARD, R. A. Ph.D. — Dept. of Bot, Univ. of New England, ARMIDALE, N.S.W. 2351, Australia 43 DEGENHARDT, K.-H. Dr.med., Prof. — Inst, fur Humangenet. und vergl. Erbpathol. der Univ.. Paul-Ehrlich Str. 41, 6 FRANKFURT/Main. W.Germany DeHAAN, R. L. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W. University Parkway, BALTIMORE, Md. 21210, U.S.A. • — Dept. of Biol., Johns Hopkins Univ., Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Morphogenetic movements and cell migration associated with embryonic heart formation (microsurgery, cinematography, autoradiography). Gallus gallus (Aves) b Pacemaker formation and the initiation of the heartbeat; developmental electrophysiology and spontaneous activity of embryonic heart cells in tissue culture. Same species as a DE HOYOS, E. — Dept. of Pathol, Dartmouth Med. School, HANOVER, N.H. 03755, U.S.A. a Electron microscopy of developing islets of Langerhans. Mus musculus (Rodentia) DEKKER, R. A. F. Drs. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Univer- siteitscentrum "De Uithof", UTRECHT, Netherlands a Electron microscopy and experimental study of the cell surface and the cortical cytoplasm of the presumptive neuro-ectodermal layers of blastulae and young gastrulae. Xenopus laevis (Anura) DE LEO, G. Dr.nat.sci. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18. 90123 PALER- MO. Italy a Embryonic development. Sepiola rondeletii (Cephalopoda) b Ultrastructure of eggs. Sabellaria (Polychaeta) , Bolina (Mollusca) DELLA CROCE. N. Dr.Nat.Sci., Prof. — 1st. di Zool., Univ. di Genova, Via Balbi 5, 16126 GENOVA, Italy a Embryonic development of a parthenogenetic marine form. Penilia avirostris (Cladocera, Crustacea) (with S. BETTANIN) b Growth of the embryo. Penilia avirostris (Cladocera, Crustacea) (with S. BETTANIN) c Formation of resting eggs. Penilia avirostris (Cladocera, Crustacea) (with S. BETTA- NIN) DELMAS, A. Prof. — Lab. d'Anat., Univ. Paris V — , Rene Descartes, 45 rue des Saints Peres. 75 PARIS Vie, France a Organogenesis and morphogenesis of central nervous system and cerebral cortex. DeLONG, G. R. M.D. — Dept. of Neurol., Massachusetts Gen. Hosp., BOSTON, Mass. 02015, U.S.A. a Experimental morphogenesis of cerebral cortex and hippocampus, and its genetic control, using cell reaggregation and neurological mutants. Mus musculus (Rodentia) b Embryonic development of retino-tectal connections. Gallus domesticus (Aves) DEL RiO. A. G. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S. M. de TUCU- MAN, Argentina a Intermediate metabolism during early development: glycolysis. Bufo arenarum (Anura) DE LUCA, V. M.D., Prof. — 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 CATA- NIA, Italy a Physiological and experimental embryology of the earliest developmental stages. Porcellio laevis (Isopoda), Eyprepocnemis plorans (Orthoptera) DE MAEYER (CRIEL), Mrs. G. Lic.Sc. — Lab. of Anat, Univ. of Gent, Ledeganckstr. 35. 9000 GENT. Belgium a Ultrastructure of shell glands and egg shells. Artemia salina (Anostraca, Crustacea) DeMAGGIO, A. E. Ph.D. — Dept. of Biol. Sci.. Dartmouth Coll., HANOVER. N.H. 03755, U.S.A. a Experimental developmental morphology. (Pteridophyta. Spermatophuta) DENIS, H. A. Dr.es Sci. — Lab. de Biochim., Univ. de Liege, 17 Place Delcour, B-4000 LIEGE, Belgium • a Mecanismes biochimiques de l'oogenese. Xenopus laevis (Anura) DENKER. H.-W. Dr.rer.nat, Dr.med. — . Arbeitsgr. Prof. G. H. M. Gottschewski am Max- Planck-Inst. fur Immunbiol., Stefan-Meier-Str. 8, 78 FREIBURG i.Br.. W.Germany a Histochemistry of acid muco substances and enzymes in early stages (fertilization up to implantation). Oryctolagus cuniculus (Lagomorpha), Mus musculus, Rattus norvegicus, Mesocricetus aucatus, Cavia cobaya (Rodentia) b Development and check of enzymes in early stages. (Mammalia) DENNE, M. P. Ph.D. — Forest Dept., Univ. Coll. of North Wales, BANGOR, Caerns., Wales, U.K. a Environmental control of xylem development. Pinus sylvestris, Picea sitchensis (Gym- nospermae) DENT. Miss J. Ph.D. — Dept. of Anat., Royal Vet. Coll., LONDON NW1 0TU, England a Developmental pathology of hybrid placentae (ultrastructure). Capra hirctts x Ovis aries (Artiodactyla) DENT. J. N. Ph.D., Prof. — Dept. of Biol., Univ. of Virginia, Gilmer Hall, CHARLOTTES- VILLE, Va. 22903, U.S.A. a Metamorphic patterns. Various species (Amphibia) b Induction of regeneration. (Anura) 44 DENUCE, J. M. Dr., Prof. — Dept. of Zool., Univ. of Niimegen, Driehuizerweg 200, NIJMEGEN, Netherlands a Morphology, physiology, and biochemistry of the hatching glands. Ocyzias latipes, Brachydanio ren'o (Teleostei) , Xenopus laevis (Anura) b Changes in protein pattern during development. Ocyzias latipes, Brachydanio rerio (Teleostei) c Histochemical characterization of primordial germ cells. Gallus domesticus (Aves), Mus musculus (Rodentia) DEOL, M. S. Ph.D. — Dept. of Anim. Genet., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England a Developmental genetics of mutants with abnormalities of the inner ear. Mus musculus (Rodentia) b Developmental genetics of mutants with abnormalities of pigmentation. Mus musculus (Rodentia) DEPARIS, P. Dr.Biol. — Lab. de Biol. Gener., Univ. Paul-Sabatier, 118 Route de Narbonne, 31 TOULOUSE 04, France a Hematopoiesis. (Urodela) b Tissue transplantation. Pleurodeles waltlii (Urodela) DEPECHE, J. — Lab. d'Evol. des Etres Organises, Fac. des Sci., 105 Bd. Raspail, 75 PARIS Vie, France a Physiology of embryos of viviparous species developing in vitro. Lebistes reticulatus, Xiphophorus helleri, Gambusia affinis, Heterandria formosa (Poeciliidae, Teleostei) DERAY, A. Lic.es Sci., Doct.3e Cycle — Lab. de Zool., Fac. des Sci., Place Marechal Leclerc, 25 BESANgON, France a Differenciation sexuelle des hybrides. (Aves) (avec L. GOMOT) DERBY, A. A. Ph.D. — Biol. Dept., Univ. of Missouri-St. Louis, 8001 Nat.Bridqe Rd., ST. LOUIS, Mo. 63121, U.S.A. a I n v i v o and in vitro study of tail resorption: biochemical changes and the role of thyroxine and prolactin. Rana pipiens (Anura) b Qualitative and quantitative changes in pituitary gland activity during life cycle and identification of its hormones during metamorphosis. Rana pipiens (Anura) DE REGGI, L. M. Dr.Spec. *-, Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Variations morphologiques et physiologiques dans le developpement, sous Taction de divers facteurs. (Phytophthires, Hemipteta) DEROM, R. M. J. M.D., Ph.D. — Dept. of Obstet. and Gynecol., Univ. of Ghent, Aan de Bocht 6, GENT, Belgium DE SILVA, K. H. G. M. B.Sc. — Inst, of Anim. Genet., Univ. of Edinburqh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Uitrastructure and cytochemistry of the surface coat in early embryos. Xenopus laevis (Anura), Triturus alpestris (Urodela) b Electron microscopy and cytochemistry of developing oocytes, especially nucleoli and nucleo-cytoplasmic relationships. Xenopus laevis (Anura) DESVEAUX (CHABROL), Mrs. J. Lic.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Radioactive precursors incorporation in some embryonic tissues. Gallus domesticus (Aves) b mRNA synthesis at the polysomal level in embryonic tissues; base composition of mRNA and rRNA. Same species as a (with L. I. SORIANO) DE TERRA (WHITTAKER), Mrs. N. Ph.D. — Inst, for Cancer Research, 7701 Burholme Ave., PHILADELPHIA, Pa. 19111, U.S.A. a Morphogenesis and nucleo-cytoplasmic interactions (microsurgery, histochemistry, auto- radiography) . Stentor coeruleus (Ciliata) DE TOMA, F. J. Ph.D. — Dept. of Biol. Sci., Clapp Lab., Mount Holyoke Coll., SOUTH HADLEY, Mass. 01075, U.S.A. a Possible stimulation of the synthesis of developmental enzymes by cyclic AMP. Dictyostelium discoideum (Actasiales) DETTLAFF, Mrs. T. A. Dr.biol.sci., Prof. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. • a Regularities of the maturation process. (Acipensevidae, Chondrostei; Amphibia) (with S. I. DAVIDOVA and T B. AISENSTADT) b Regularities of transformation of the mitotic cycle during cleavage. (Acipensevidae, Chon- drostei; Amphibia) (with G. GOLISHEVA) c Relative duration of development. Xenopus laevis (Anura) (with T. RUDNEVA) DE TURENNE, Miss M. Dr.Spec. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Control of DNA synthesis in the silk gland during the fifth larval instar. Bombyx mori (Lepidopteva) DEUCHAR, Miss E. M. Ph.D. — Anat. Dept., Med. School, University Walk, BRISTOL BS8 1TD, England a Processes of neural induction and early differentiation (tissue culture, biochemistry). Xenopus laevis (Anura) 45 1) Morphogcnctic movements and tissue differentiation in primitive streak to somite stages (cinematography and operations in embryo culture). Rattus norvegicus (Rodentia) c Development of intraembryonic and intrauterine organ grafts. Same species as b d Effects of maternal immune sera and lymphocytes on embryonic tissues in vivo and in vitro. Mus musculus, Ratttts norvegicus (Rodentia) (with M. STANISSTREET, Liverpool) DEVILLERS, Ch. Dr.es Sci., Prof. — Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 75 PARIS Ve, France • a Respiration during early stages of egg development, especially relation with oxidative phosphorylations as shown by the action of 2,4-dinitrophenol and some inhibitors of respiration. Salmo IHdetu, S. farto (Tcleostei) (with Mrs. M. CHANCONIE-MAURY) DE VINCENTIIS, M. Prof. , Il.Chair of Histol. and Embryo!., Univ. of Napoli, Via Mezzocannone 8, 80134 NAPOLI, Italy • DEWES, E. Dr.rer.nat — Inst, fur Entw.physiol., Univ. zu Koln, Gyrhofstr. 17, 5 KOLN 41, W.Germany a Experimented Untcrsuchungen zur postembryonal Differenzierung und Regulations- fahigkeit der mannliehen Genitalimaginalanlagen. Ephcstia kuhniclla (Lepidoptcra) DIIA1NAUT, A. — Serv. de Biol. Anim., Univ. des Sci. et Techn. de Lille, B.P. 36, 59 VILLENEUVE-DASCQ, France a Electron microscopy and autoradiography of oogenesis. Nereis divcrsicolor, (Polychaeta) b Oogenesis in the absence of brain hormone. (Ncreidac, Poli/chacta) DHOUAILLY, Miss D. Dr.spec. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Analysis of the differentiation of supernumerary limb; study of the plumage that develops thereon. Gnlltts domesticus, Anas boschas (Avcs) b Experiments on the differentiation of the cutaneous appendages in chimacric combinations between different species. (Aves, Mammalia) DIAMOND, M. Ph.D., Prof. — Dept. of Anat., Univ. of Hawaii, 1960 East-West Rd., HONOLULU, Hawaii 96822, U.S.A. a Sexual differentiation and masculinization. Cauia porcellus, Rattus norvegicus (Rodentia), Homo sapiens (Primates) b Pseudopregnancy. Cavia porcellus, Mcsocricetus aurat'ts (Rodentia), Oryctolagus cuniculus (Lagomorpha) , Homo sapiens (Primates) c Sexual behavior and reproduction. Cavia porcellus, Rattus norvegicus, Mesocricetus aurattu (Rodentia), Homo sapiens (Primates) DiBERARDINO, Miss M. A. Ph.D., Prof. — Dept. of Anat., Med. Coll. of Pennsylvania, 3300 Henry Ave., PHILADELPHIA, Pa. 19129, U.S.A. • a Nuclear, chromosomal, and cytoplasmic changes during development. Rana pipiens (Anura) DICK, D. A. T. D.Phil., Prof. — Dept. of Anat. Univ. of Dundee, DUNDEE DD1 4HN, Scotland, U.K. a .Study of water and ion fluxes in oocytes. Bufo bufo (Anura) DICKINSON, W. J. Ph.D. — Biol. Dept., The Reed College, PORTLAND, Ore. 97202, U.S.A. a Genetic regulation of enzymes during development, especially genes controlling the differentiated tissue distribution of aldehyde oxidase. Dcosophila melanogastcc (Dipfera) DICKSON, A. D. M.D., Prof. — Div. of Morphol. Sci., Fac. of Med., Univ. of Calgary, CALGARY 44, Alta., Canada a Control and significance of trophoblastic giant cell transformation of the blastocyst. Mus musculus (Rodentia) b Hormonal secretion by unimplanted blastocysts. Mus musculus (Rodentia) DICKSON, D. H. M.Sc. — Dept. of Anat., Univ. of W.Ontario, LONDON, Ont., Canada DICKSON, D. ROSS Ph.D., Prof. — , Dept. of Anat., Cleft Palate Center, Univ. of Pitts- burgh, 320 Salk Hall, PITTSBURGH, Pa. 15213, U.S.A. a Morphology of the cartilages, ligaments, joints and muscles of the larynx from the end of the second fetal month to adulthood. Homo sapiens (Primates) DI DINO, Miss G. Dr.rer.nat. — 1st. di Anat. Umana Norm., 2a Catt, Univ. di Catania, Via Biblioteca 4, 95124 CATANIA, Italy a The ciliary ganglion in anencephaly. Homo sapiens (Primates) DIEHL, F. A. Ph.D. — Dept. of Biol., Univ. of Virginia, Gilmer Hall, CHARLOTTES- VILLE. Va. 22903, U.S.A. a Problems of development: cell and tissue migrations; the roles of individual cell types during morphogenesis; the synthesis of extracellular mesoglea and perisarc and their role in development. Cordt/lophora caspia (Hijdrozoa) DIETERLEN (LIEVRE), Mrs. F. Dr.es Sci. — Inst. d'Embryol. Exper. du Coll. de France et du C.N.R.S., 1 1 Place M. Berthelot, 75 PARIS Ve, France • a Formation of abnormal hepatic tubules after association to bird embryonic liver of mouse embryonic organs developing as coclomic graft. Gallus gallus, Coturnix japonica (Aves), Mus musculus (Rodentia) b La differenciation chimique du pancreas de l'embryon. Gallus domesticus (Aves) (avec D. BEAUPAIN) 46 DI GRANDE, Miss F. Dr. — Inst, of Zool., Fac. of Sci., Univ. of Boloqna, Via S. Giacomo 9, 40126 BOLOGNA, Italy a X-ray destruction of germ cells, sterile gonad development and sex differentiation. Bufo bufo, Rana dalmatina (Anura) b Descriptive and experimental study of development and sex differentiation of genital apparatus. Sepia officinalis (Cephalopoda) DIJK, Miss J. G. van Drs. — Lab. for Cell Biol, and Histol., State Univ., Rijnsburqerwea 10 LEIDEN, Netherlands a The influence of parathyroid hormone on the morphology of embryonic and adult mam- mary glands in vitro, on the Ca-concentration of the gland in different stages, and on the milk. Mus musculus (Rodentia) DILLARD, W. L. Ph.D. — Dept. of Zool., Univ. of Oklahoma, 730 Van Vleet Oval, Rm. 222, NORMAN, Okla. 73069, U.S.A. a RNA biosynthesis in nucleate and anucleate cells. Acetabularia mediterranea, A. crenulata, Acicularia schenki (Chlorophyta) b Macromolecular changes during microstome-macrostome transformation. Tetuahymena vorax, T. pycifocmis (Ciliata) DI MARCOTULLIO, A. D.Sci. — Inst, of Zool. and Comp. Anat., Univ. of Trieste, Via A. Valerio 32, 34127 TRIESTE, Italy a Regeneration and germ cell differentiation. (Planariidae, Turbellaria) DIMOND, Sister M. T. Ph.D., Prof. — Dept. of Biol., Trinity Coll., WASHINGTON, D.C. 20017, U.S.A. a Histogenesis and interrelations of endocrines: the hypophysis under normal conditions and after treatment with goitrogens; the developmental sequence of organic iodine compounds in the thyroid; ultimobranchial body and calcitonin in bone development. Chelydca serpen- tina serp. and other spp. (Chelonia) DINSMORE, Ch. E. A.B. — Div. of Biol, and Med. Sci., Brown Univ., PROVIDENCE, R.I. 02912, U.S.A. a The possible directive influences of the transplanted carpal blastema over subjacent minced limb muscle fragments implanted in the orbit. Ambystoma mexicanum (Ucodela) b Electron microscopy of the relative ratios of satellite cells in regenerating and non- regenerating limb musculature. (Amphibia; Mammalia) DI STEFANO, L. Ph.D. — , 1st. di Istol. ed Embriol., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, Italy a Reticulocyte maturation in the embryo. Gallus spec. (Aves) DOANE, Mrs. W. W. Ph.D. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. a Developmental and physiological genetics of isoamylases: analysis of genetic regulatory mechanisms in cellular differentiation as revealed through the combined techniques of biochemistry, genetics and cytogenetics. Dcosophila melanogaster, D. hydei and other spp. (Dipteva) b Developmental and experimental analysis of mutants characterized by abnormalities in lipid and carbohydrate metabolism, as well as in endocrine and reproductive physiology. Dcosophila melanogaster (Diptera) DOBKIN, Sh. Ph.D., Prof. — Dept. of Biol. Sci., Florida Atlantic Univ., BOCA RATON, Fla. 33432, U.S.A. a Description of larval stages. Macrobcachium otfecsi (Decapoda, Crustacea) DOBROWOLSKI, J. M.Sc. — Dept. of Zool., Wyzsza Szkofa Pedagogiczna, ul. Pod- brzezie 3, KRAK6W, Poland DODSON, J. W. Ph.D. — Dept. of Zool., Univ. of Bristol, BRISTOL BS8 1UG, England DOHERTY, R. A. M.D. — Dept. of Pediat, Genet., Radiat. Biol, and Biophys., Univ. of Rochester, 260 Crittenden Blvd., ROCHESTER. N.Y. 14620, U.S.A. a Temporal aspects of genetic expression in early embryos. Mus musculus (Rodentia) b Prenatal diagnosis of biochemical and cytogenetic abnormalities. Homo sapiens (Primates) DOHLE, W. Dr.rer.nat. — I. Zool. Inst, der Freien Univ., Kon.-Luise Str. 1-3, 1 BERLIN 33, W.Germany DOLFINI, Miss S. D.Sc. — 1st. di Genet., Univ. di Milano, Via Celoria 10, 20133 MILANO, Italy a Development and cytology of cultured cells. Dcosophila melanogastec (Dipteca) DOLLANDER, A. Dr.en Med., Prof. — Lab. d'Embryol., Univ. de Nancy I, 31 rue Lionnois, 54 NANCY, France • a Ultrastructure du developpement de la glande surrenale. Gallus domesticus (Aves) b Ultrastructure du cortex de 1'oeuf. Tcitucus spec. (Ucodela) DOMAC (TESAR), Mrs. B. M.D., Sc.M.D. — Inst, of Histol. and Embryol., Fac. of Med., P.O.Box 166, Salata 3, 41001 ZAGREB, Yugoslavia a Selective inhibitory effects of the hypophysis upon growth and differentiation of the adrenal glands in the fetus. Rattus nocvegicus (Rodentia) b Teratogenic effect of some tranquilizers on neural plate and tube derivatives (in vivo injection and histochemistry). Ocyctolagus cunicutus (Lagomocpha), Rattus spec. (Roden- tia) 47 DOMINICI, C. M.D. — i Inst, of Histol. and Gen. Embryol., Univ. of Perugia, Via del Giochetto, 06100 PERUGIA, Italy a Histochemical analysis of morphogenesis in vitro compared with that in vivo. Galhis domesticus (Aves) DONALDSON, W. E. Ph.D., Prof. — Poultry Sci. Dept., School of Agric. and Life Scis., North Carolina State Univ., Box 5307, RALEIGH, N.C. 27607, U.S.A. a The effects of maternal diet on embryonic fat metabolism (fatty acid biosynthesis, oxidation, and interconversion) . Gallus domesticus, Coturnix c. japonica (Aves) DONATO (CELI), Mrs. A. — 1st. di Zool. e di Anat. Comp., Univ. di Messina, Via dei Verdi 75, 98100 MESSINA, Italy a Vitellogenesis. (Teleostei) DONGEN, C. A. M. van M.Sc. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands a Biochemistry of protein synthesis during early development (radio-isotopes, disc-electro- phoresis). Lymnaea stagnalis (Gastropoda) b Cell-lineage of normal and lobeless embryos. Dentaliwn spec. (Scaphopoda) DONNELLY, Miss G. — Depts. of Microbiol, and Biochem., Med. Center, Univ. of Kentucky, LEXINGTON, Ky. 40506, U.S.A. a Analysis of the physico-chemical properties of DNA in differentiating cells. Triturus viridescens (Urodela), Gallus domesticus (Aves), Mus musculus, Rattus rattus (Rodentia) , Homo sapiens (Primates) (with S. P. MODAK) DOORENMAALEN, W. J. van M.D., Prof. — Dept. of Med. Anat. and Embryol., State Univ. of Utrecht, Janskerkhof 3A, UTRECHT, Netherlands • a Immunological and immunochemical investigations on lens proteins in induction and differentiation. (Aves), Homo sapiens (Primates) DORFMAN, A. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637, U.S.A. DORGAN, W. J. Ph.D. — Dept. of Zool.-Entomol., Montana State Univ., BOZEMAN, Mont. 59715, U.S.A. a Age-related changes in placental giant cells in tissue culture. Rattus norvegicus (Rodentia) DORR, H. — Inst, fur Genet., Univ. des Saarlandes, 66 SAARBRUCKEN 11, W.Germany a Effects and mode of action of temperature on puffing patterns in giant chromosomes. Chironomus thummi (Diptera) DOSKOCIL, M. MUDr. D.Sc, Prof. — Dept. of Anat., Charles Univ., U nemocnice 3. PRAHA 2, Czechoslovakia a Experimental embryology of the hyoophysis. Gallus domesticus (Aves) DOSSEL, W. E. Ph.D., Prof. — Electr. Micr. Lab., Dept. of Anat., Creighton Univ., 657 North 27th St., OMAHA, Nebr. 68131, U.S.A. a The fine structure of endocrine organs of normal and hypophysectomized embryos. Gallus domesticus (Aves) b The fine structure of embryonic organs (descriptive). Same species as a c Development of function and fine structure of mesonephric and metanephric kidneys, liver, and pancreas. Same species as a DOSTAL, M. MUDr. — Lab. of Plastic Surg., Dept. of Exper. Teratol., Czechoslov. Acad, of Sci., Legerova 61, PRAHA 2, Czechoslovakia a Development of the secondary palate under normal and experimental conditions. Mus musculus, Rattus norvegicus (Rodentia) b Elaboration of an appropriate method for testing the teratogenic activity of drugs. Same species as a DOTT, H. M. Ph.D. — A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. Station. 307 Huntingdon Rd., CAMBRIDGE CB3 0JQ, England a Effect of irradiation of spermatozoa in vitro under various conditions on the development of eggs exposed to them. Oryctolagus cuniculus (Lagomorpha) b Lysosomal enzymes and spermatozoa. (Mammalia) DOUCET (DE BRUiNE), Mrs. M. H. M. M.Sc. — Hubrecht Lab. (Intern. Embryol. Inst), Uppsalalaan 1, Universiteitscentrum "De Uithof", UTRECHT, Netherlands a Induction of gastrulation. Ambystoma mexicanum (Urodela) DOURNON, C. A. E. M.es Sci. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Autoradiography of cellular proliferation and differentiation before and during meta- morphosis. Rana temporaria, R. esculenta, Bufo bufo (Anura) DOWNIE, J. R. B.Sc. — Dept. of Zool., Univ. of Glasgow, GLASGOW W.2, Scotland, U.K. a Cell behaviour, mainly epithelial cells, in the expansion of the blastoderm. Gallus gallus (Aves) b Development of specialised cell contacts in the early blastoderm. Gallus gallus (Aves) DRACHMAN, D. B. M.D., Prof. — . Dept. of Neurol., Johns Hopkins Hosp., 601 North Broadway, BALTIMORE, Md. 21205, U.S.A. • a Development of joints and joint malformations. Gallus domesticus (Aves) 48 b Development of muscle and neuromuscular connections. Gallus domesticus (Aves), (Mam- malia) c Developmental neuropharmacology (transmitter substances). Gallus domesticus (Aves) d Trophic influence of motor neurons in developing muscle. Gallus domesticus (Aves), (Mammalia) DRAGOMIROV, N. I. Dr.biol.sci., Prof. — Inst, of Anim. Evolut. Morphol. and Ecol Acad of Sci. of the U.S.S.R., Lenin Ave. 33, MOSCOW W-71, U.S.S.R. • a The organogenesis gradients in the hyoideo-mandibular section of the lateral sensory system. Acipenser guldenstadtii, A. vuthenus (Chondrostei) DREYER, Miss M. V. M.Sc. — Dept. of Zool., Univ. of the O.F.S., BLOEMFONTEIN, S.Africa a The application of different stains (with differences of the pH) to detect the Nissl bodies in embryonic and adult neurons. Gallus domesticus (Aves), Oryctolagus cuniculus (Lago- morpha) DRUGA (PUSZTASZERI), Mrs. A. M.D. — Inst, of Histol. and Embryo!., Med. Univ., Tiizolto u. 58, BUDAPEST IX, Hungary a Teratogenetic effect of chemicals, especially drugs containing the piperazin ring. Rattus rattus (Rodentia) b The importance of the praedifferentional stage in teratogenesis. Same species as a DRUKKER, J. Ph.D. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AM- STERDAM-O., Netherlands a Descriptive and experimental studies of the developing central nervous system. Gallus domesticus (Aves) b Histochemical characteristics of developing chemoreceptor organs. Oryctolagus cuniculus (Lagomorpha), Mus musculus, Rattus norvegicus (Rodentia) c Embryology of the endocrine cells of the pancreas. Same species as a DUBENDORFER, A. Dipl.phil.il — Zool.-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, CH-8006 ZURICH, Switzerland a Determination and cell lineage in imaginal discs. Musca domestica (Diptera) DUBEY, P. N. M.Sc, Prof. — Dept. of Anat., Med. Coll., NAGPUR-3, M.S., India a Regeneration of the apical ectodermal ridge; its influence on individuation of distal limb elements (histology). Gallus domesticus (Aves) (with S. S. NAVAGIRI and T. L. PATIL) b Morphology and histochemistry of metanephros development to stage 40. Same species as a (with A. QUADEER) c Effect of removal of the optic vesicle on histogenesis of the optic lobe. Same species as a (with V. M. SALTHE) DUBEY (TIWARI), Mrs. R. M.Sc. — Dept. of Biochem., Fac. of Sci., Allahabad Univ., ALLAHABAD-2, U.P., India a Cuticle proteins in egg shell, larva, and pupa (electrophoresis). Philosamia ricini (Lepidoptera) (with R. PANT) DUBOIS, R. Dr. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Lignee germinale et morphogenese sexuelle. Gallus gallus (Aves) (avec D. CUMINGE) DUERKSEN, J. D. Ph.D., Prof. — Dept. of Biol., Univ. of Calgary, CALGARY 44, Alta., Canada a Genetic expression and its regulation in eucaryotic and procaryotic cells. Mus musculus (Rodentia) DUKE, E. J. Ph.D. — Zool. Dept., Univ. Coll., Stillorgan Rd., DUBLIN 4, Ireland DUKE, K. L. Ph.D., Prof. — Dept. of Anat., Med. Center, Duke Univ., DURHAM, N.C. 27710, U.S.A. a Comparative histology of the ovary (including developmental stages and history of germ cells). (Mammalia) DUMONT, J. N. Ph.D. — Biol. Div., Oak Ridge Natl. Lab., P.O.Box Y, OAK RIDGE, Tenn. 37830, U.S.A. a Cytology of the oocyte, especially development and vitellogenesis. Xenopus laevis (Anura) b Electron microscopy of Wolffian lens regeneration. (Urodela) DUNCAN, D. Ph.D., Prof. (Emer.) — Dept. of Anat., Med. Branch, Univ. of Texas, GALVESTON, Tex. 77550, U.S.A. DUNCAN, J. T. Ph.D., Prof. — Dept. of Cell and Molec. Biol., School of Nat. Sci., San Francisco State Coll., SAN FRANCISCO, Calif. 94132, U.S.A. a Pigment cell migration and differentiation; developmental control of migration and pattern formation; developmental behavior of chromatophores and their immunological inter- actions in mixed populations of pigment cells from different species or from animals with different pigment pattern genotypes. Taricha torosa, Amby stoma mexicanum (Urodela) b Heart determination and differentiation; temporal and spatial patterns of control of heart development; isolation and characterization of intracellular materials controlling heart development. Taricha torosa, Ambystoma tigvinum (Urodela) DUNG, H. C. Ph.D. — Dept. of Anat., Univ. of Texas Med. School at San Antonio, 7703 Floyd Curl Drive, SAN ANTONIO, Tex. 78229, U.S.A. a Etiology of the developmental abnormalities in the "torpid" mutant. Mus musculus (Rodentia) 49 DUPRAT (ESCUDIE), Mrs. A.-M. Dr.es Sci. — Lab. de Biol. Gener., Univ. Paul-Sabatier, 118 Route de Narbonne, 31 TOULOUSE 04, France a Experiments on the differentiation of cultured embryonic cells. (Urodela) (with J. C. BEETSCHEN) DURAN de LOPEZ, Mrs. L. M.D. — Cat. de Embriol., Fac. de Med., Univ. de Los Andes, MERIDA, Venezuela a Developmental pathology, especially rachischisis, sympodia, anomalies of the urogenital system etc. Homo sapiens (Primates) b Developmental and functional anatomy of the mammary gland in relation with hormonal control especially of the placenta and the gonads. ( Rodent ia), Homo sapiens (Primates) c Histo- and toxoplasmosis as teratogenic factors. Homo sapiens (Primates) (with E. KLEISS) DURAND, J. P. — Lab. Souterrain du C.N.R.S., 09 MOULIS, France a Experiments on ontogenesis and eye degeneration. Proteus anguinus (Urodela) b Reproduction and development. Hydromantes italicus (Urodela) DURANTE, Miss M. C. D.Sci., Prof. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 PALERMO, Italy a The biochemistry of regeneration. (Annelida) DURCHON, M. Prof. — Lab. de Zool., Univ. des Sci. et Techn. de Lille, B.P. 36, 59 VILLENEUVE-DASCQ, France • DURST (2IVKOVIC), Mrs. B. M.D., D.Sc. — Inst, of Histol. and Embryol., Univ. of Zagreb, Salata 3, P.O.Box 166, 41001 ZAGREB, Yugoslavia a Differentiation of the stroma of chorionic villi. Homo sapiens (Primates) DURSTON, A. J. Dr.phil. — Sch. of Biol. Sci., Univ. of Sussex, Falmer, BRIGHTON BN1 9QG, England a Chemotactic signalling and pattern formation. Dictyostelium discoideum (Acrasiales) DUSPIVA, F. Dr., Prof. — Zool. Inst, der Univ., Physiol. Lehrstuhl, Berlinerstr. 15, 6900 HEIDELBERG, W.Germany • a Localization of enzymes within the embryo and in subcellular fractions. (Insecta; (Amphibia) b Protein differentiation, ontogeny of enzyme patterns. (Insecta; Amphibia) c Energy metabolism and metabolism of nucleic acids, nucleotides, cofactors during development. (Teleostei; Amphibia) d Cell-physiological mechanisms of malformation in early development. (Amphibia) DUTRIEU, Miss J. Dr.es Sci. ■ — Lab. de Physiol. Gen., Fac. des Sci. de Bordeaux, Av. des Facultes, 33 TALENCE, France DUTTON, R. W. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Development of immune system; in vitro differentiation of immunogenic response. Mus musculus (Rodentia) DUVAL-BEAUPERE, Mrs. G. — Lab. d'Anat, Univ. Paris V — Rene Descartes, 45 rue des Saints Peres, 75 PARIS Vie, France a Growth data of limbs and spinal column. Homo sapiens (Primates) DWORKIN, M. Ph.D., Prof. — Dept. of Microbiol., Med. School, Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. a Developmental biology of fruiting. M yxococcus xanthus (Myxobacteria) 1. Role and nature of a stable m-RNA required for microcyst germination. 2. Regulation of macromolecular synthesis during development. 3. Nature of proteins synthesized during germination. 4. Mechanism of induction of microcyst formation. 5. Nature of intercellular associations, b Relationship of developmental cycle and ecology. Myxococcus xanthus, Stigmatella auran- tiaca (Myxobacteria) DYER, H. McM. B.Sc, M.B., Ch.B. — Dept. of Developm. Biol., Marischal Coll., Univ. of Aberdeen, ABERDEEN AB9 IAS, Scotland, U.K. a The effects of hyperglycaemia and insulin on embryonic tissues grown in vitro. Gallus g alius (Aves) b Growth of heart muscle in vitro. Same species as a DYLEVSKf, I. MUDr. — Dept. of Anat., Charles Univ., U nemocnice 3, PRAHA 2, Czechoslovakia a Prenatal development of muscles. Homo sapiens (Primates) DYSON (DEPLEDGE), Mrs. M. Ph.D. — Dept. of Anat., Guy's Hosp. Med. School, LONDON S.E.I, England a Mechanism and effect of ultrasonically induced red cell stasis on development. Gallus domesticus (Aves) b Stimulation of tissue regeneration by ultrasound: 1. the effects of ultrasonically induced anaerobiosis on granulation tissue and blastemata; 2. protein synthesis; 3. cell mobility. Oryctolagus cuniculus ( Lagomorpha) , Mus musculus (Rodentia) DZIUBA, P. — Dept. of Gen. Biol., Silesian Acad, of Med., K.Marksa 19, Rokitnica, ZABRZE 8, Poland 50 EAKIN, R. M. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, U.S.A. • a Electron microscopy of induction systems. Hyla regilla (Anura) b Development of photoreceptors. Helix aspersa (Gastropoda) (and other Invertebrata) EAYRS, J. T. Ph.D., D.Sc, Prof. — Dept. of Anat, Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a Effects of hormones on central nervous development. Rodentia EBERT, J. D. Ph.D., Prof. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. • — Dept. of Biol., Johns Hopkins Univ., Charles & 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Animal viruses (esp. tumor viruses) as tools in studying embryonic development. Gallus gallus (Aves) (with C. W. ORR, and J. RASH) ECHAVE LLANOS, J. M. M.D., Prof. — Inst, de Embriol., Biol, e Histol., Fac. de Cienc. Med., Univ. Nac. de La Plata, 60 y 120, LA PLATA, Argentina a Analysis of growth control (tissue and humoral factors) of liver tissue in ontogenetic, regenerative and neoplastic growth; circadian rhythms of growth variables. Mus musculus (Rodentia) b Ultrastructure of the pars distalis of the hypophysis in growth situations (ontogenesis, liver regeneration, and hepatomas). Mus musculus (Rodentia) ECKSTEIN, P. M.D., D.Sc, Prof. — Dept. of Anat, Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a Mode of action of intra-uterine devices: 1. hormone concentrations in blood at critical stages of primate cycle; 2. composition of tubo-uterine secretions; 3. tissue reactions to intra-uterine materials. Rattus rattus (Rodentia), Macaca mulatta, Papio papio (Primates) EDDS (LUCKENBILL), Mrs. L. M. Ph.D. — Dept. of Biol. Sci., Smith Coll., NORTH- AMPTON, Mass. 01060, U.S.A. EDDS, M. V., Jr. Ph.D., Prof. — Div. of Biol, and Med. Sci., Brown Univ., PROVIDENCE, R.I. 02912, U.S.A. • EDE, D. A. Ph.D. — Embryol. Sect., A.R.C. Poultry Research Centre, King's Buildings, West Mains Rd., EDINBURGH 9, Scotland, U.K. a The action of inherited abnormalities and lethal genes in development. Gallus gallus (Aves) b Experimental studies on limb bud development. Gallus gallus (Aves) c Cell adhesion and movement, and cell death and degeneration in normal and mutant embryos. Gallus gallus (Aves) EDIDIN, M. A. Ph.D. — Dept. of Biol., Johns Hopkins Univ., Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Development of transplantation antigens. Mus musculus (Rodentia) b Expression of histocompatibility antigens in the early embryo. Mus musculus (Rodentia) c Relationship between tumor cell surface antigens and embryo cell surface antigens. Mas musculus (Rodentia) EDSTROM, J.-E. — Dept. of Histol., Karolinska Inst., S-140 01 STOCKHOLM 60, Sweden EDWARDS, J. G. Ph.D. — Dept. of Cell Biol., Univ. of Glasgow, GLASGOW W.2, Scotland, U.K. a Formation of adhesions in reaggregating cells: embryonic cells, Gallus domesticus (Aves), cultured cell lines, various species EDWARDS, R. G. D.Sc. — Marshall Lab., Dept. of Physiol., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3EG, England a Genetics and embryology of pre-implantation stages. Homo sapiens (Primates) and other Mammalia b Immunology of reproduction. Homo sapiens (Primates) and other Mammalia EFREMOVA, Mrs. S. M. Cand.biol.sci. — Dept. of Embryol., Leningrad State Univ., Mendeleevsky St. 5, LENINGRAD V-164, U.S.S.R. a Morphology and biochemistry of somatic embryogenesis (microcinematography, histology, autoradiography). Ephydatia [luviatilis, Spongilla lacustris, Hippospongia communis, Agelas oroides, Hamigeca hamigera (Porifera) EGAMI, N. Ph.D., Prof. — Zool. Inst., Univ. of Tokyo, Hongo 7-3, Bunkyo-ku, TOKYO, 113 Japan a Change in radiation-sensitivity during embryonic development. Oryzias latipes (Teleostei) b Embryology of endocrine organs. Same species as a EGELHAAF, A. Dr.rer.nat, Prof. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W.Germany • a Genetische Grundlagen der Differenzierung von Augenpigmenten. Ephestia kuhniella (Lepidoptera) b Morphogenetische Genwirkungen. Ephestia kuhniella (Lepidoptera), Drosophila melano- gaster (Diptera) c Genetik und Physiologie der Blutproteine im Entwicklungsverlauf. (Insecta) EGLI-CONSCIENCE, Mrs. M. Dipl.natw. — Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonneggstr. 5, 8006 ZURICH, Switzerland a Enzyme histochemistry of tissues. Drosophila melanogaster (Diptera) 51 EGUCHI, G. Ph.D., Prof. - Lab. of Cell Sci., Inst, of Biophys. and Molcc. Biol.. Fac. of Sci., Univ. of Kyoto, Sakyo-ku, KYOTO, Japan • a Molecular and cellular events in Wolffian lens regeneration. Triturus pyrrhogastet (Urodela) b Stability in the differentiation of chondrocytes and lens epithelial cells in clonal cell culture. Gallus gallus (Aves), Mus bactrianus (Rodentia) (with T. S. OKADA and M. TAKEICHI) EHN, J. A. Fil.Dr. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Effects of sulphydryl-blocking and other substances on development of the embryo. Agelena labyrinthica (Arachnoidea) b Animalization and vegetalization of the embryo by means of chemical agents. Same species as a EICHER, Miss E. M. Ph.D. — Dept. of Biol., Coll. of Arts & Sci.. Univ. of Rochester, ROCHESTER, N.Y. 14627, U.S.A. EISENBERG (ZALIK), Mrs. S. Ph.D. — Dept. of Zool., Fac. of Sci., Univ. of Alberta, EDMONTON 7, Alta., Canada a The cell surface during morphogenetic movements in the embryo: 1. isolation of cell populations by density gradient centrifugation; 2. Cell electrophoresis; 3. Isolation of cell membrane. Xenopus laevis (Anura), Gallus gallus (Aves) b Lens regeneration: 1. clonal cell culture; 2. transplantation of individual cells; 3. Morphogenetic potentials of the cell population in the dorsal iris. Triturus viridescens, Taricha granulosa (Urodela) , Xenopus laevis (Anura) ELBERS, P. F. Ph.D. — Biol. Ultrastruct. Res. Unit, State Univ. of Utrecht, Sorbonnelaan 4, Universiteitscentrum "De Uithof", UTRECHT, Netherlands ELGER, W. M.D. — Inst, fur Endokrinpharmakol., Schering A.G., Miillerstr. 172, 1 BERLIN 65, W.Germany a Experiments on sex differentiation, using androgens and antiandrogens; the possible occurrence of two sex inductors. Oryctolagus cuniculus (Lagomorpha), Mus musculus, Rattus norvegicus (Rodentia) b Immunology of embryonic gonads. Same species as a ELIAS, S. Dr.chem.Sci. — Lab. de Embriol. Norm, si Parol.. Acad, de Stiinjje Med., Centr. de Cere. Med., Bui. M. Viteazul 24, TIMI§OARA, Rumania a Biophysical (osmotic, thermic, densitometric) and biochemical (protides, water, minerals) aspects of the effects of exogenous noxae on the embryonic liquid. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) b Embryocybernetics: quantitative characterisation of the stability of embryonic structures by means of controlled destructive procedures. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) ELIASSON (KLEIN), Mrs. E. Fil.Dr. — Wenner-Gren Inst., Norrtullsgatan 16, S-113 45 STOCKHOLM, Sweden a Enzyme induction and repression, particularly arginase. Gallus spec. (Aves) b Induction and repression of enzyme synthesis in cells in tissue culture. Homo sapiens (Primates) ELLGAARD, E. G. Ph.D. — Dept. of Biol., Tulane Univ., NEW ORLEANS, La. 70118, U.S.A. a RNA and protein metabolism in salivary glands during development. Drosophila melano- gaster (Diptera) ELLIOTT, D. S. Ph.D. — Natl. Inst, of Environm. Health Sci., P.O.Box 12233, RESEARCH TRIANGLE PARK, N.C. 27709, U.S.A. a Microenvironment of the early cleavage stages: characterization and effect of changes on embryonic development. Mus musculus, Rattus spec. (Rodentia) , Oryctolagus cuniculus (Lagomorpha) b Methods of storage for unfertilized eggs and embryos (progesterone, low temperature), and viability tests by transfer to recipients. Same species as a ELLIS, C. H., Jr. Ph.D. — Dept. of Biol., Amherst Coll., AMHERST, Mass. 01002, U.S.A. ELMER, W. A. Ph.D. — Dept. of Biol., Emory Univ., ATLANTA, Ga. 30322, U.S.A. a Differentiation of eye lens fiber cells: 1. stability increase of the proteins which control the turning on of macromolecular synthesis. 2. control of various RNA species by the different regulator molecules. Bos taurus (Artiodactyla) b Genetic control of chondrogenesis on the macromolecular level in the creeper mutation (cell cycle times of genotypically different chondrocytes). Gallus domesticus (Aves) ELSDALE, T. R. Ph.D. — Clin, and Popul. Cytogenet. Res. Unit, Western Gen. Hosp., EDINBURGH, Scotland, U.K. a Morphogenesis in cell cultures. Homo sapiens (Primates) EMANUELSSON, H. Fil.Dr. — Zoophysiol. Inst., Univ. of Lund, Helgonavagen 3, 223 62 LUND. Sweden EMELIANOV, S. V. Dr.biol.sci., Prof. — Inst, of Anim. Evolut. Morphol. and Ecol., Acad. of Sci. of the U.S.S.R.. Lenin Ave. 33, MOSCOW W-71, U.S.S.R. a Heterochrony in appearance and rate of development of dorsal and anal fin elements (radialia, musculature, fin rays, fin folds). Salmo salar, Esox lucius, Tetragonopterus 52 rubcopictus, Rutilus rutilus, Callichthys fasciatus, Haplochilus pleferi, Perca fluviatilis, Atherina hepsetus (Teleostei) b Early postembryonic development and individual variability. Acipenser guldenstadtii, A. stellatus, A. nudiventris, Huso huso (Chondrostei) EMERIT, M. Dr.es Sci. — Lab. de Zool. II, (Morphol. et Ecol.), Univ. des Sci. et Techn. du Languedoc, Place Eugene Bataillon, 34 MONTPELLIER, France a Embryonic and post-embryonic development. Gasteracantha spec, Isoxya spec, Acro- somoides spec. (Gasteracanthinae, Araneida, Arachnida) EMMERICH, H. Dr. — Zool. Lab., Dept. of Cell Biol., Univ. of Nijmegen, Driehuizerweq 200, NIJMEGEN, Netherlands a Steroid hormone metabolism, especially hormone binding in cytoplasm and nuclei of salivary gland cells. Drosophila hydei (Diptera) EMMERT, W. Dr.rer.nat. — Zool. Inst, der Univ., Rontgenring 10, 87 WURZBURG, W.Germany a Postembryonic development and metamorphosis. Calliphora erythrocephala (Diptera) ENDO, A. M.D. — Dept. of Hygiene and Prev. Med., School of Med., Niigata Univ., Asahimachi, NIIGATA-City, 951 Japan a Chromosomal studies of early embryos, especially electron microscopy. Mus musculus, Rattus spec, Mesocricetus auratus (Rodentia) ENDO, Y. D.Sc — Dept. of Biol., Keio Univ., YOKOHAMA-Hiyoshi, Japan a Fertilization and development. (Echinoidea) b Electron microscopy of oogenesis. (Echinoidea) ENEMAR, E. A. W. Prof. -, Inst, of Zool., Univ. of Gothenburg, Fack, S-400 33 GOTHEN- BURG 33, Sweden a Development of hypothalamo-hypophysial connections. Rana temporaria (Anura) ENGELS, W. Dr.rer.nat. — Zool. Inst, der Univ., Badestr. 9, 44 MUNSTER/Westf., W.Germany a Speed of yolk formation: composition of reserve proteins (radio-isotopical methods). Apis mellifeca (Hymenoptera) b Regulation and enzymatic conditions of glycogen synthesis in oogenesis (radio-isotopical methods). Musca domestica (Diptera) ENGLAND, Mrs. M. A. BA. — Dept. of Anat, Royal Free Hosp., Sch. of Med., Hunter Street, LONDON W.C.I, England a Primary neural induction. Gallus domesticus (Aves) b Electron microscopy and histochemistry of yolk formation. Gallus domesticus (Aves) (with M. R. BELLAIRS) ENGLANDER, H. Dr.med., Dr.rer.nat., Prof. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W.Germany • a Regionalspezifische Induktion. (Urodela) b Die Wirkung von Lithium auf die Differenzierungsleistung des Ektoderms. (Urodela) c Disaggregation und Reaggregation von fruhembryonalem Gewebe. (Urodela) EPEL. D. Ph.D., Prof. — Marine Biol. Research Div., Scripps Inst, of Oceanography, Univ. of Calif., San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Biochemistry and physiology of fertilization, especially chemistry of cortical granules and cortical reactions, block to polyspermy, and activation of enzymes. Strong y~ locentrotus puvputatus and other marine spp. (Invertebrata) b Control of enzyme synthesis during development. Strong y locentrotus purpuratus, Dend- raster excenfricus (Echinoidea) EPPENBERGER, H. M. Ph.D. — Lab. for Developm. Biol., Swiss Fed. Inst, of Techno!., Sonneggstr. 5, 8006 ZURICH, Switzerland a Phylogeny and ontogeny of phosphagen kinases. (Insecta; Pisces; Aves) ERHART, E. A. M.D., Ph.D., Prof. — Sect, of Neuroanat, Dept. of Anat., Univ. de Sao Paulo, Caixa Postal 2921, SAO PAULO, Brazil a Degeneration and regeneration of peripheral nerve fibres. Gallus domesticus (Aves), Canis familiaris (Carnivoca) ERIKSSON, Miss M. M.D. — Lab. of Teratol., Karolinska Inst., S-104 01 STOCKHOLM 60, Sweden a Induced fetal damage late in pregnancy of special interest for animal tests of new drugs. Mus musculus (Rodentia) ESCHENBERG, Miss K. M. Ph.D., Prof. — Dept. of Biol. Sci., Clapp Lab., Mount Holyoke Coll., SOUTH HADLEY, Mass. 01075, U.S.A. a Cytology and developmental physiology of the ovary (histochemistry, autoradiography). Gecris remigis, Belostoma flumineum, Ranatra fusca (Hemipteta) ESHEL, Mrs. Sh. M.Sc — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSALEM, Israel. ETHERIDGE. A. L. Ph.D., Prof. — Dept. of Biol., Univ. of Arkansas, Monticello, COL- LEGE HEIGHTS, Ark. 71655, U.S.A. a Determination and morphogenesis of the pronephros, nephric duct, and mesonephros. Ambystoma tigvinum (Urodela) 53 ETKIN, W. Ph.D., Prof. — Dept. of Anat., Albert Einstein Coll. of Med., Yeshiva Univ., 1300 Eastchester Rd. and Morris Park Ave., NEW YORK. Bronx, N.Y. 10461, U.S.A. • a Development of sensitivity to thyroxine in larval tissues. Rana pipiens, Rana catesbeiana (Anura) b Endocrine control of metamorphosis. Rana pipiens, Rana catesbeiana (Anura) ETOH, H. Dr.Agric. — Div. of Biol., Natl. Inst, of Radiol. Sci., 9-1, 4-chome, CHIBA, 280 Japan a Long term effects of low doses of ionizing radiation on various embryonic stages. Oryzias latipes (Teleostei) EURENIUS-PERSON, Mrs. L. Fil.lic. — Inst, of Zool., Univ. of Gothenburg, Fack, S-400 33 GOTHENBURG 33, Sweden a Fine structure of the development of the median eminence, neural lobe, and adeno- hypophysis (from 14-day embryo to adult). Mus musculus (Rodentia) (with R. J. JARSKAR) b Uptake and distribution of monoamines and/or their precursors in the developing median eminence (electron microscopical autoradiography). Mus musculus (Rodentia) (with R. J. JARSKAR) EVANS, H. E. Ph.D., Prof. — Dept. of Anat., Vet. Coll., Cornell Univ., ITHACA, N.Y. 14850, U.S.A. a Study of skeletal development in regard to inter-litter variation and position in the uterus, utilizing cesarian removals. Canis familiaris (Carnivora) b Veratrum induced cyclopia. Ovis aries (Artiodactyla) c Serial sections of embryos at spaced ages, available for inspection. Canis familiaris, Felis catus (Carnivora), Bos taurus, Ovis aries (Artiodactyla), and other Mammalia EVANS, M. J. M.A. — Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England EWEN, AL. B. Ph.D. — Research Station, Research Branch, Canada Agric, Univ. Campus, SASKATOON, Sask., Canada a Physiology and functional morphology of reproduction with special emphasis on the endocrinology of reproduction in males. Melanoplus sanguinipes (Orthoptera) b Histology and histochemistry of neurosecretory cells and their cycles of activity. Melanoplus sanguinipes (Orthoptera) c Insect hormones and analogues: effects on embryogenesis; possible uses as insecticides. Melanoplus sanguinipes (Orthoptera) EYAL (GILADI), Mrs. H. Ph.D. — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSA- LEM, Israel • a Differentiation potencies of the uterine embryo and its ultrastructure. Gallus domesticus (Aves) EYRIES, Ch. Dr.en Med. — Dept. of Anat., Univ. Paris V — . Rene Descartes, 45 rue des Saints Peres, 75 PARIS Vie, France a Sensory neurons and sensory pathways cf cochlear nucleus. Homo sapiens (Primates) FABER, J. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Universiteits- centrum "De Uithof", UTRECHT, Netherlands • FABIAN, B. C. Ph.D. — Zool. Dept., Univ. of the Witwatersrand, Milner Park, JOHAN- NESBURG, S.Africa a Isolation and assay of intercellular messages during development. Bufo regularis (Anura), Gallus domesticus (Aves) b 5-Bromodeoxyuridine inhibition of differentiation in vivo and in vitro. Same species as a FACCHINI, Miss L. Dr. — 1st. di Anat. Comp., Univ. di Perugia, Via A. Pascoli, 06100 PERUGIA, Italy a Descriptive embryology. Dugesia lugubris (Turbellaria) b Electron microscopy of vitellogenesis. Branchiobdella pentodonta (Oligochaeta) FACHBACH, G. Dr.phil. — Zool. Inst, der Univ., Universitatsplatz 2, A 8010 GRAZ, Austria a Vergleichende Entwicklungsgeschichte. Salamandra salamandra subspp. (Urodela) FAINSTAIN, (HAMERMAN), Mrs. N. M.Sc. — Dept. of Zool., Hebrew Univ. of Jerusa- lem, JERUSALEM, Israel a Ultrastructural changes in the egg from ovulation through fertilization and cleavage. Gallus domesticus (Aves) FALEEVA, Miss T. I. — Biol. Inst., Leningrad State Univ., LENINGRAD B-164, U.S.S.R. a Maturation of eggs, atresia of ovarian follicles, and regulation of these processes. Acipenser ruthenus, A. stellatus (Chondrostei) , Rutilus rutilus, Pelecus cultratus (Cyprini- formes), Acerina cernua, Macropodus opercularis, Hemichromis bimaculatus (Perciformes, Teleostei) FALIN, L. I. M.D., Prof. — Dept. of Histol. and Embryol., Moscow Stomatol. Inst., Kaljaevskaiia 18, MOSCOW, U.S.S.R. FALLIERI, L. A. B.Sc. — Dept. of Gen. Biol., Inst, of Biol. Sci.. Fed. Univ. of Minas Gerais, Rua Carangola 288 - 4°andar, C.P. 253, BELO HORIZONTE, M.G., Brazil a DNA and nuclear size during postembryonic development of liver, salivary glands, and 54 prostata. Biomphalaria ( = Australorbis) glabrata and other spp. (Pulmonata, Gastro- poda) FALLON, J. F. Ph.D. — , Dept. of Anat, Bardeen Med. Labs., Univ. of Wisconsin, MADISON, Wis. 53706, U.S.A. • a Cell death during limb morphogenesis. Gallus domesticus (Aves), Mesocricetus auratus (Rodentia) , Homo sapiens (Primates) b Ultrastructure of the gametes before and during interaction. Nereis limbata (Potychaeta) FAMBROUGH, D. M., Jr. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washinqton, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. a Ontogeny of nerve-muscle interactions. Rattus norvegicus (Rodentia) FANGHANEL, J. Dr.med. — Anat. Inst., Med. Bereich, Univ. Rostock, Gertrudenstr. 9, 25 ROSTOCK 1, East.Germany a Experimentelle Untersuchungen zur Frage von Organ- und Schadelveranderungen auf Grund statischer Veranderungen in der Postnatalperiode (Amputation der Vorderextremi- taten). Rattus norvegicus (Rodentia) b Untersuchungen des postnatalen Schadel- und Organwachstums nach pranatalem Einfluss peristatischer Faktoren (akustische und optische Reize, diatetische Einfliisse). Rattus norvegicus (Rodentia), Oryctolagus cuniculus (Lagomorpha) FANKHAUSER, G. Ph.D., Prof.(Emer.) — Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540, U.S.A. • a Metamorphosis. (Urodela) b History of experimental embryology and cytology. FANTEL, A. M.Sc. — Central Lab. for Human Embryol., Dept. of Pediat., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Morphology and development of the placenta. (Mammalia) FANTONI, A. M.D. — Lab. di Radiobiol. Anim., C.S.N.-Casaccia, C.P. 2400, 00100 ROMA, Italy FARGEIX, N. Dr.es Sci. — Lab. de Biol. Anim., 1 Av. Vercingetorix, 63 CLERMONT- FERRAND, France FARINELLA (FERRUZZA), Mrs. N. D.Sc. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 PALERMO, Italy FASANELLO DE BUSTOS, Mrs. L. M.D. — Sect, of Exper. Neurol., Inst, of Neurol., Hosp. de Clinicas, Piso 2, MONTEVIDEO, Uruguay a Development of sleep-wakefulness cycle in the newborn. Cavia porcellus (Rodentia) FAUCOUNAU, Mrs. N. Lic.es Sci. — Lab. de Biol, et d'Histol., Univ. de Bordeaux II, Place de la Victoire, 33 BORDEAUX, France a Le role teratogene des hormones thyroidiennes. (Aves) FAULHABER, Miss I. E. W. Ph.D. — . Inst, fur Biochem. und Molek. Biol., Fachbereich I ( Vorklinik) , Freie Univ. Berlin, Arnimallee 22, 1 BERLIN 33, W.Germany a Isolation and biochemical characterization of the primary induction factor in the gastrula. Xenopus laevis (Anuva) b Protein and nucleic acid metabolism during the process of differentiation. Xenopus laevis (Anura), Triturus alpestris, Amby stoma mexicanum (Urodela) FAULKNER, Ch. S. M.D. — Dept. of Pathol., Dartmouth Med. School, HANOVER, N.H. 03755, U.S.A. a Electron microscopy of lung development. Didelphys americanus (Marsupialia), Felis domestica (Carnivora) FAURfi-FREMIET, E. Dr., Prof.hon. — Lab. d'Embryol. Exper. du Coll. de France, Place M. Berthelot, 75 PARIS Ve, France • FAUTREZ, J. C. M.D., Prof. — Lab. of Anat., Univ. of Gent, Ledeganckstr. 35, 9000 GENT, Belgium • a Mechanism of maturation and segmentation divisions. Actemia salina (Anostcaca, FAUTREZ (FIRLEFYN), Mrs. N. J. — Lab. of Anat., Univ. of Gent, Ledeganckstraat 35, 9000 GENT, Belgium a Mechanism of maturation and segmentation divisions. Avtemia salina (Anostraca, FEDECKA (BRUNER), Mrs. B. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Enzyme synthesis during development. Strong ylocentrot us purpuratus, Allocentcotus fragilis (Echinoidea), Gallus gallus (Aves) FEDINEC, A. A. Ph.D., Prof. — Dept. of Anat., Med. Units, Univ. of Tennessee, 800 Madison Ave., MEMPHIS, Tenn. 38103, U.S.A. a The effect of bacterial toxins and pathogenic bacteria on the fetus; relation between infection routes and barrier properties of placenta and fetal membranes. Rattus norvegicus (Rodentia) FEDOROFF, S. Ph.D., Prof. — Dept. of Anat., Coll. of Med., Univ. of Saskatchewan, SASKATOON, Sask., Canada a Development of cell surface antigens and the surveillance mechanism. Mus musculus (Rodentia) 55 FEIERTAG (KOPPEN), Mrs. C. C. M. Drs. — Genet. Inst., Univ. van Groningen, Biol. Centrum. Vleugel A, Kerklaan 30, HAREN (Gr.), Netherlands a Oogenesis and fertilization; parthenogenesis. Tetranychus urticae (Acari) FELDMAN, Miss J. D. B.Ch. — Developm. Biol. Div., Natl. Inst, for Med. Research, Mill Hill, LONDON N.W.7, England a Origin of polarity in the eye and morphological development of the optic tectum. Xenopus laevis (Anura) b Formation of specific connections between retina and optic tectum. Same species as a FELDMAN, M. Ph.D. — Dept. of Cell Biol., Weizman Inst, of Sci., REHOVOTH, Israel • FELDMAN, M. L. Ph.D. — Dept. of Anat., Boston Univ., 80 E.Concord St., BOSTON, Mass. 02118, U.S.A. a The cochlear nucleus and superior olive of newborn and young animals: 1. Nerve cell development, especially dendritic morphology (light microscopy); 2. Development of synapses (electron microscopy). Rattus norvegicus (Rodentia) FELIX, J.-M. D.E.S. — Lab. de Physiol. Anim., Fac. des Sci., B.P. 347, 51 REIMS, France a Endocrine function of the foetal pancreas; insulin blood levels in the foetus and in the mother. Rattus norvegicus (Rodentia) (with R. L. JACQUOT, B. C. J. SUTTER and ^ Mrs. M. T. SUTTER) FELL, Dame Honor B. Dr., Prof. — Strangeways Res. Lab., Wort's Causeway, CAM- BRIDGE, England • FELTS, W. Ph.D., Prof. — Dept. of Anat. Sci., Univ. of Oklahoma Med. Center, 801 NE 13th St., OKLAHOMA-City, Okla. 73104, U.S.A. a Biomechanics of bone including developmental changes. (Socicidae, Insectivora), Mus musculus, Rattus spec. (Rodentia) , (Cetacea), Homo sapiens (Primates) b Gravity effects on bone development. Mus musculus (Rodentia) FERM, V. H. M.D., Ph.D., Prof. — Dept. of Anat., Dartmouth Med. School, HANOVER, N.H. 03755, U.S.A. a Teratogenic effects of heavy metals. Mesocricetus auratus (Rodentia) b Experimentally induced twinning. Mesocricetus auratus (Rodentia) FERNANDEZ, Miss S. N. Pharm.M. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S.M.de TUCUMAN, Argentina a Intermediate metabolism during early development. Bufo arenarum (Anura) b Mitochondria during embryogenesis. Same species as a FERRIER, V. Lic.es Sci. — Lab. de Biol. Gen., Univ. Paul-Sabatier, 118 Route de Nar- bonne, 31 TOULOUSE 04, France a Hybridation intergenerique. (Urodela) b Gynogenese. Pleurodeles waltlii (Urodela) FERRIS, W. R. Dr. — Dept. of Biol. Sci., Univ. of Arizona, TUCSON, Ariz. 85721, U.S.A. • FICQ, Mrs. A. A. D.Sc, Prof. — Lab. de Cytol. et d'Embryol. Molec, Univ. libre de Bruxelles, 67 rue des Chevaux, 1640 RHODE-ST-GEN£SE, Belgium • a Etude autoradiographique du metabolisme au cours de l'oogenese. Asterias spec. (Asteroidea), Rana spec. (Anura) b Observations autoradiographiques sur l'oogenese et la morphogenese. Pleurodeles spec, Triturus spec. (Urodela), Rana fusca (Anura) c Studies on metabolism during maturation. Asterias rubens, Arbacia lixula, Paracentrotus lividus (Echinodermata) , Pleurodeles waltlii (Urodela) d Effects of actinomycin D and histones on early differentiation of oocytes. Xenopus laevis (Anura) e DNA synthesis during early oogenesis. Xenopus laevis (Anura) f Template activities of chromatin in meiotic cells. Xenopus laevis (Anura) g Protein metabolism in early oogenesis. Xenopus laevis (Anura), Amby stoma mexicanum (Urodela) FILOGAMO, G. M.D., Prof. — , Dept. of Human Anat., Univ. of Torino, Corso M.D'Azeq- lio 52, 10126 TORINO, Italy • a Trophic influences of glossopharyngeal nerve on the development of foliate papillae. Oryctolagus cuniculus (Lagomorpha) b Neuronal cell membrane differentiation at molecular level. Mus musculus (Rodentia) FILONI, S. Dr.Biol.Sci. — 1st. di Anat. Comp. "Battista Grassi", Univ. di Roma, Via A. Borelli 50, 00161 ROMA, Italy a Influence of metamorphosis on regeneration power of the central nervous system; effects of thyroxin, thiouracil, and hypophysectomy. Xenopus laevis (Anura) b Stimulation of central nervous system regeneration power by transplantation of neuro- blasts into the ventricular cavities. (Amphibia) FILOSA, M. F. Ph.D., Prof. — Dept. of Zool., Scarborough Coll., Univ. of Toronto, WEST HILL Ont., Canada FINGER, I. Ph.D., Prof. — Dept. of Biol., Haverford Coll., HAVERFORD, Pa. 19041, U.S.A. FINNEGAN. C. V. Ph.D., Prof. — Dept. of Zool., Univ. of British Columbia, VAN- COUVER 8, B.C., Canada • 56 a Analysis of postgastrula axial mesoderm differentiation in vitro. Taricha tocosa, Amby stoma gracile (Urodela), Galtus domesticus (Aves) b Cytochemical and electron microscopic examination of myoblast, endo- and ectome- senchymal differentiation. Taricha torosa, Ambystoma gracile (Urodela) c Molecular and cellular aspects of arm formation in larvae. Strong ylocentrot us droebachien- sis, S. purpuratus, S. franciscanus (Echinoidea) (with D. H. LARRIVEE) d In vitro differentiation of 6-day lens epithelium: biochemical (protein synthesis) and ultrastructural analysis. Gallus domesticus (Aves) (with B. G. McLEAN) e The effect of transplanted epidermis from the hind limb field on regeneration of the forelimb: structure of muscle, cartilage and bone. Tritmus viridescens (Urodela) (with E. F. M. GARROD) FIORONI. P. P.D., Dr.phil. — Zool. Anstalt der Univ., Rheinsprung 9, 4051 BASEL, Swit- zerland a Development of integument (chromatophores, shell), nervous system, coelom and yolk sac (including electron microscopy). Loligo spec, Alloteuthis spec, Sepiola spec, Sepietta spec, Sepia spec. (Decapoda), Eledone spec, Octopus spec. (Octopoda, Cephalopoda), and others b Morphology of embryonic nutrition (yolk, albumine, food eggs) and transitory larval organs. (Gastropoda; Malacostcaca, Crustacea) c Histological normal tables of development. (Cephalopoda; Gastropoda; Crustacea) FISCHBERG, M. Dr.phil., Prof. — Station de Zool. Exper., Univ. de Geneve, Route de Malagnou 154, CHfiNE-BOUGERIES, Geneve. Switzerland • FISCHER, A. Dr.rer.nat. — Zool. Inst, der Univ.. Weyertal 119, 5 KOLN 41, W.Germany a Maternal effect on the eye colour in juvenile or/or-mutants; oocyte genetic activity with respect to or-gene product. Platynereis dumerilii (Poluchaeta) FISCHMAN. D. A. M.D., Prof. — Dept. of Biol., Univ. of Chicago, 1101 East 57th St., CHICAGO, 111. 60637, U.S.A. a Intercellular junctions in cardiac morphogenesis. Gallus domesticus (Aves) b Ultrastructure of skeletal muscle development. Same species as a c Myofibrillar assembly in embryonic heart muscle. Same species as a FITCH, F. W. Prof. — Dept. of Biol., Div. of Biol. Sci.. Univ. of Chicago, CHICAGO, 111. 60637, U.S.A. FITZGERALD, L. R. Ph.D., Prof. — Dept. of Anat.. Med. Units. Univ. of Tennessee, 800 Madison Ave., MEMPHIS, Tenn. 38103, U.S.A. a Effects of environmental factors and antibiotics on development of teeth, and control mechanisms of tooth formation. Mus musculus (Rodentia) b Development of incisor teeth and significance of the various types of dentin seen in early stages. Mus musculus (Rodentia) FLAMM. H. M.D.. Prof. — Hygiene Inst., Med. Fac, Univ. of Wien, Kinderspitalgasse 15, Postfach 23, A-1095. WIEN, Austria a Infections of the blastocyst by viruses: fate of tht blastocyst and embryo, duration of presence of the virus in the blastocyst. Oryctolagus cuniculus (Lagomorpha) b Infections of fetus and placenta. Homo sapiens (Primates) FLEISCHHAUER. K. Dr.med.. Prof. — Anat. Inst, der Univ. Bonn. Abt. fur Neuroanat., Nussallee 10, 53 BONN, W.Germany FLICKINGER, C. J. M.D., Prof. — Dept. of Anat.. Med. School, Univ. of Virginia, CHARLOTTESVILLE, Va. 22901, U.S.A. a Postnatal development of the prostate (electron microscopy). Rattus rattus (Rodentia) b Development and adult structure of the bulbo-urethral glands (light and electron microsco- py) . Same species as a FLICKINGER, R. A. Ph.D.. Prof. — Dept. of Biol., State Univ. of New York, 102 Health Sci. Bldg., BUFFALO, N.Y. 14214, U.S.A. • FLINT, O. P. B.A. — Embryol. Sect., A.R.C. Poultry Research Centre. King's Buildings, West Mains Rd., EDINBURGH 9, Scotland, U.K. a Behaviour and differentiation of normal and mutant limb mesenchyme cells in vitro. Gallus gallus (Aves) FLYNN, t. THOMSON D.Sc, Prof. — Address unknown • FOOTE. Mrs. F. MARTINDALE Ph.D. — Dept. of Physiol.. Southern Illinois Univ., CARBONDALE, 111. 62901, U.S.A. • a Growth and maintenance of gonads on synthetic media, and on standard media composed of chick embryo extract and agar. Xenopus laevis (Anttra) b Growth of avian thymus in vitro. Gallus domesticus (Aves) c Effects of lithium and mercury compounds on embryonic development in vitro and i n vivo. Gallus domesticus (Aves) FORD, P. Ph.D., Prof. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a Developmental histochemistry. Raja binoculata (Selachii) b Microspectro-photometry of enzyme concentrations in development. Same species as a FORD. P. J. D.Phil. — Dept. of Anim. Genet., Univ. of Edinburgh, King's Buildings, EDINBURGH EH9 3JN, Scotland, U.K. a The synthesis of proteins by ovary in organ culture. Xenopus laevis (Anura) 57 b The structure and function of ribosomes during cell differentiation. Xenopus laevis (Anura) c Control of nucleic acid synthesis in oogenesis, especially 5s RNA. Xenopus laevis (Anura) d Synthesis and assembly of ribosomes during oogenesis, especially 5s RNA and associated proteins. Xenopus laevis (Anura) FORET, J. E. Ph.D. — Dept. of Zool., Univ. of New Hampshire, DURHAM, N.H. 03824, U.S.A. a Biochemical regulation of limb regeneration. Ambystoma spec, Notophthalmus viridescens (llrodela) b In vitro cultivation of larval and adult tissues and regeneration blastema. Ambystoma spec. (Ucodela) c Migration of cardiac primordia. Gallus domesticus (Aves) FORMAN, M. Ph.D. — Dept. of Biol. Sci., Purdue Univ., LAFAYETTE, Ind. 47907, U.S.A. a Synthesis of regulatory macromolecules during embryo development. Fucus furcatus (Phaeophyta) b Control and synthesis of cell walls. Same species as a FORREST, H. S. Ph.D., D.Sc, Prof. — Dept. of Zool., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. a RNA synthesis in very early development of eggs and at later stages; examination of the products of RNA polymerase activity by competition-hybridization techniques. Oncopeltus fasciatus (Hemipteca) b The role of dAT (deoxyadenine-thymidine) in embryogenesis. Drosophila melanogastev (Dipteva) c Effects of long wave length UV on development. Same species as b FORSBERG, J.-G. Prof. — Inst, of Anat, Univ. of Bergen, Arstadvollen, 5000 BERGEN, Norway a Regulative mechanisms behind epithelial differentiations in the genital region. Mus musculus, Rattus spec. (Rodentia) b Antigen content of the Miillerian epithelium. Mus musculus (Rodentia) c Influence of antiandrogenic substances on the differentiation of the male genital tract. Rattus spec. (Rodentia) d Heterologous transplantation. (Mammalia) FORTAK, W. M.D. — Dept. of Histol. and Embryol., Acad, of Med., ul. Narutowicza 60, EODz, Poland a Comparative morphochemistry of the development of the adrenal gland. Xenopus laevis (Anura), Rattus norvegicus (Rodentia) b The distribution and activity of some hydrolytic enzymes in lysosomes and of oxido- reducing enzymes in mitochondria, in various tissues and organs during metamorphosis and embryogenesis. Xenopus laevis (Anura), Gallus domesticus (Aves), Rattus norvegicus, Cavia porcellus (Rodentia) c Histology and histochemistry of adrenal gland regeneration. Rattus norvegicus (Rodentia) FORTI, G Prof. — 1st. Botanico, Univ. di Bari, BARI, Italy • FOSKET (BAKER), Mrs. E. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Cytology: endomitosis, ultrastructure. Drosophila melanogaster (Dipteva) FOSSE, G. Dr.odont, Prof. — Anat. Inst., Univ. of Bergen, Arstadvollen, 5000 BERGEN, Norway a Reconstructions of tooth-germs in pouch-youngs. Isoodon obesulus, I. macrourus, Pecameles gunnii (Marsupialia) b Odontogenesis. Gadus callarias, Esox lucius (Teleostei) c Epithelial-mesenchymal interactions in odontogenesis. Rattus norvegicus (Rodentia) FOURCHE, J. Dr.es Sci. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Le metabolisme respiratoire au cours du developpement. Drosophila melanogaster (Diptera), Bombyx mori (Lepidopteca) FOURNIER, B. Dr.Biol.anim. — Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facul- tes, 33 TALENCE, France a Recherches descriptives et experimentales sur la morphogenese embryonnaire des appendi- ces. Carausius spec. (Phasmida) FOWLER, J. A. Ph.D. — Dept. of Biol., State Univ. of New York at Stony Brook, STONY BROOK, N.Y. 11790, U.S.A. a Development of hybrids. Rana pipiens (Anura) b Developmental controls (genetic, environmental). Oryzias latipes (Teleostei) FOX, D. I. Ph.D. — , Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonneggstr. 5, 8006 ZURICH, Switzerland a Developmental enzymology. Drosophila melanogaster (Diptera) FOX, H. Ph.D., D.Sc. — Dept. of Zool. and Comp. Anat., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England a Growth and degeneration of the pronephric system (electron microscopy). (Anura) b Grafting of pronephros and mesonephros in larvae under hypo- and hyperthyroid condi- tions. Rana temporaria (Anura) 58 c Haploid and diploid tissues (electron microscopy). Xenopus laevis (Anura) (with L. HAMILTON, Middlesex Hosp.) d Tail degeneration (electron microscopy). Same species as b e Ultrastructure of larval tissues. Same species as c FRAGATA, M. Ph.D. — Dept. of Plant Sci., Fac. of Agric, Univ. of Manitoba, WINNIPEG 19, Man., Canada FRANCHI, L. L. Ph.D. — Dept. of Anat, Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a Fine structure of normal and irradiated male and female germ cells. (Rodentia; Primates) b Structure and function of chromosomes in oocytes in relation to radiosensitivity. (Mam- malia) FRANCIS, D. W. Ph.D. — Dept. of Biol. Sci., Univ. of Delaware, NEWARK, Del. 19711, U.S.A. a Study of the overall character of the sequence of gene controlled processes during cell differentiation, using the enzyme complement of developmental mutants. (Acrasiales) FRANCOEUR, R. T. Ph.D., Prof. — Dept. of Biol., Fairleigh Dickinson Univ., 285 Madison Ave., MADISON, N.J. 07940, U.S.A. a Teratogenic effects of vinblastine (VLB, Velban) on embryogenesis. Dugesia tigrina (Turbellaria), Blatta orientalis, Periplaneta spec. (Blattaciae), Dcosophila melanogastet (Dipteta), Oryzias latipes (Teleostei) b New techniques in reproduction from theoretical and social viewpoint: artificial insemina- tion, in vitro gestation, prenatal monitoring, in vitro fertilization, etc. Homo sapiens (Primates) FRANCOIS, Y. Dr.es Sci., Prof. — Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 75 PARIS Ve, France a Development of paired fins. (Teleostei) b Development of vertebrae. Polypterus spec. (Dipnoi), (Teleostei) c Growth of embryo. (Teleostei) d Evolution of bone structures. (Osteichthyes) FRANK, G. H. D.Sc. — Dept. of Zool., Univ. of Durban- Westville, Private Bag 4001, DURBAN, S.Africa a Development of the chondrocranium and osteocranium, especially morphology of the sound conducting apparatus. (Amphibia), Crocodilus niloticus (Ccocodilia and other Reptilia) FRANKEL, J. Ph.D., Prof. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA- City, Iowa 52240, U.S.A. a Morphogenesis. Tetvahymena spec. (Ciliata) b Developmental genetics: analysis of the cortical pattern. Tetrahymena pyriformis, Euplotes minuta (Ciliata) FRANKLIN, L. E. Ph.D. — Dept. of Reprod. Physiol., Delta Region. Primate Research Center, Tulane Univ., COVINGTON, La. 70433, U.S.A. • a Electron microscopy of gametes and fertilization. (Annelida; Echinodermata; Mammalia) b Mechanisms of fertilization in vitro. Cricetus auratus (Rodentia), Macaca mulatta (Primates) c Fine structure of the morphogenesis of sperm organelles which play crucial roles in fertilization. Cricetus auratus (Rodentia), Macaca mulatta, Pan troglodytes (Primates) FRANZSN, A. S. Fil.Dr. -, Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Comparative study of the spermatozoon and spermatogenesis. (Invertebrata) b Larval development. ( Brachiopoda; Entoprocta) FRASCHINI, Miss A. Ph.D., Prof. — Dept. of Histol. and Embryol., Univ. of Pavia, Piazza Botta 10, 27100 PAVIA, Italy a Histochemical analysis of catecholamines and 5-HT (5-hydroxytryptamine) during the development of central nervous system. Rattus novvegicus (Rodentia) b Histophotometric quantitative determination of nuclear DNA (Feulgen reaction) during the development of central nervous system. Same species as a FRASER. F. C. Ph.D., M.D., F.R.S.C, Prof. — Dept. of Biol., McGill Univ., MONTREAL 110, Que.. Canada a Maternal and environmental factors (e.g. diet) influencing the frequency of cleft lip. Mus musculus (Rodentia) b Effect of oligohydramnios on fetal lung development. Mus musculus (Rodentia) FRASER, I. H. M.Sc. — Biochem. Dept.. Med. School, Dalhousie Univ., Sir Charles Tupper Bldg., HALIFAX, N.S., Canada a Kinetics of synthesis of globin and incorporation of iron into hemoglobin in blood islands of blastodiscs between the primitive streak and 12-somite stages. Gallus gallus (Aves) FRASER. R. C. Ph.D., Prof. — Dept. of Zool. and Entomol.. Univ. of Tenessee, KNOX- VILLE, Tenn. 37916, U.S.A. a Biosynthesis of hemoglobins in the embryo and characteristics of embryonic erythroid cells. Gallus domesticus (Aves) 59 FRATELLO, B. D.Sc. — 1st. di Anat. Comp., Univ. di Modena, Via Bcrengario 14, 41100 MODENA, Italy a Cellular growth and mitotic ratio in peripheral nervous system. (Amphibia) b Proteolytic pattern in the developing digestive apparatus. Rana spec. (Anura), Triturus spec. (Urodela), Gallus domesticus, Columba spec. (Aves) FREED, J. J. Ph.D. — Inst, for Cancer Research, 7701 Burholme Ave., PHILADELPHIA, Pa. 19111, U.S.A. a Genetics of haploid embryo cell lines including analysis by nuclear transfer. Rana pipiens (Anura) (with L. MEZGER-FREED) b Motility and ultrastructure of cultured cells. Rana pipiens (Anura), Triturus viridescens (Urodela) FREEMAN, G. Ph.D. — Dept. of Biol., Univ. of California San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. FRENKEL, G. M.S. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL-AVIV, Israel a The metabolism of spermatozoa. Homo sapiens (Primates) FRETTER, Miss V. Ph.D., D.Sc. — Dept. of Zool., Reading Univ., Whiteknights Park, READING RG6 2AJ, England a Veliger larvae of coastal waters: structure, feeding, food requirements, digestion, structural changes at metamorphosis. Many spp. (Prosobranchia, Gastropoda) FREUND (BRANDT), Mrs. E. Dr.agr. — Anat. Inst., Med. Bereich, Univ. Rostock, Gertru- denstr. 9, 25 ROSTOCK 1, East.Germany a Kraniogenese und Osteogenese. Larus ridibundus (Aves) FRIANT, Mrs. M. Dr.es Sci., Dr.en Med., Prof. — Ecole dAnthropologie, 1 Place d'lena, 75 PARIS XVIe, France a Development of the skeleton. (Reptilia; Aves; Mammalia) b Development of the teeth. (Mammalia) c Development of the brain. (Mammalia) d Development of pterylosis. (Aves) e Development of cartilage, bone, and horn. (Vertebrata) f Development of Meckel's cartilage. (Mammalia), Homo sapiens (Primates) FRIED (MONTAUFIER), Mrs. M. C. D.E.S. — Lab. de Genet. Evol. et de Biometrie, C.N.R.S., 91 GIF-sur-YVETTE, France FRIEDKIN, M. E. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O. Box 109, LA JOLLA, Calif. 92037, U.S.A. a Biochemistry of microtubular systems in relation to development of nerve tissues FRIEDLANDER, M. Ph.D. — Lab. of Genet., Inst, of Life Sci., Hebrew Univ., JERUSA- LEM, Israel • a Differentiation and function of the apyrene sperm; histochemistry and electron microscopy of testes and genitalia of the inseminated female. Bombyx movi (Lepidoptera) FRIEDMAN, H. P. Ph.D. — Univ. of Missouri-St.Louis, 8001 Natural Bridge Road, ST. LOUIS, Mo. 63121 U.S.A. a Effect of hormones on accumulation of brain-specific proteins in embryos. Gallus domesticus (Aves) b Teratology of nervous system induced by anti-brain antibodies. Gallus domesticus (Aves) c Correlation of changes in brain proteins with neurological mutants. Gallus domesticus (Aves) FRISTROM, Mrs. D. Ph.D. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, U.S.A. a Fine structure of imaginal discs. Dcosophila melanogaster (Diptera) FRITTS (WILLIAMS), Mrs. M. L. Ph.D. — Dept. of Anat., Wayne State Univ., 540 E. Canfield, DETROIT, Mich. 48201, U.S.A. a Interactions during gonadal development in tissue culture. Gallus domesticus (Aves) b Teratology of limb bud development. Mus musculus (Rodentia) FRITZ, H. I. Ph.D., Prof. — Dept. of Biol. Sci., Div. of Sci. and Engin.. Wright State Univ., Col.Glenn Highway, DAYTON, Ohio 45431, U.S.A. a The role of the egg white in the development of the embryo. Gallus domesticus (Aves) b Embryonic nutrition. (Chelonia), Gallus domesticus (Aves), Didelphis marsupialis, Caluromys derbiana, Marmosa spec. (Marsupialia) c Experimental teratogenesis. Gallus domesticus (Aves), (Marsupialia: Placentalia) FROMSON, D. R. Ph.D. — Dept. of Biol.. McGill Univ., MONTREAL 110, Que., Canada a RNA synthesis during embryological development; qualitative and quantitative aspects. Ciona intestinalis (Ascidiacea) b Assessment of gene activity during development; inactive and active regions of the genome. Lufechinus pictus, Strong ylocentrotus purpuratus, Arbacia punctulata (Echinoidea) FRYE. B. E. ' Ph.D., Prof. — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Prolactin, somatotropin and thyroxine interactions during development, growth, and metamorphosis. Rana pipiens (Anura), Ambystoma mexicanum (Urodela), Gallus domesti- cus (Aves) 60 b Endocrine regulation of carbohydrate metabolism, esp. changing patterns of control during metamorphosis. Rana pipiens (Anura), Amby stoma mexicanum, A. tigrinum (Urodela) FUJII. R. Ph.D., Prof. — . Dept. of Biol., Sapporo Med. Coll., SAPPORO, Hokkaido, 060 Japan (no embryological work in progress) FUJII, T. Ph.D., Prof.(Emer.) — Zool. Inst., Univ. of Tokyo, Honqo 7-3, Bunkvo-ku TOKYO, 113 Japan y .' a The mechanism of chemical carcinogenesis. Rattus norvegicus (Rodentia) FUJISAWA, H. M.Sc. — Lab. of Cell Sci., Inst, of Biophys. and Molec. Biol., Fac. of Sci., Univ. of Kyoto, Sakyo-ku, KYOTO, Japan a Analysis of the factors affecting cell aggregation and cell contact. Gallus gallus (Aves) (with T. S. OKADA and K. TAKAHASHI) b Mechanisms of tissue reconstitution from dissociated retinal cells. Gallus gallus (Aves) FUKE, M. D.Sc. — Biol. Inst, Fac. of Sci., Univ. of Kanazawa, Marunouchi-1, KANAZA- WA, Japan a Reaggregation of dissociated cells. Callyspongia elongata (Porifera) b Cytological properties of polar lobe. Osrrea gigas (Lamellibranchia) FUKUDA, S. D.Sc, Prof. — Biol. Inst, of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, Japan FUKUMITSU, S. B.V.M. — Natl. Inst, of Anim. Industry, CHIBA-shi, 280 Japan a Transfer of fertilized eggs by non-surgical techniques. Bos taurus, Capra hircus (Artio- dactyla) FULLER, M. S. Ph.D., Prof. — Dept. of Botany, Univ. of Georgia, ATHENS, Ga. 30601, U.S.A. a Development of motile cells in aquatic species. Allomyces cystogenes (Blastocladiales, Phycomycetes) b Mitosis. (Fungi) FULLILOVE, Miss S. L. Ph.D. — Dept. of Zool., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. a Developmental aspects of embryonic lethals. Drosophila spec. (Diptera) b Patterning of morphogenetic information during oogenesis (ovary transplantation, isotopic labeling of developing oocytes). Same species as a c T n vitro interactions between inducing and responding tissues in heart development. Taricha torosa (Urodela) FULTON, CM. Ph.D. — Dept. of Biol., Brandeis Univ., WALTHAM, Mass. 02154, U.S.A. • a Cell differentiation during ameba-to-flagellate transformation, with emphasis on the initiation of transformation and the morphogenesis of new organelles, especially flagella and basal bodies. Naegleria gruberi (Protozoa) FURUSAWA, M. D.Sc. — Lab. of Embryol., Fac. of Sci., Osaka City Univ., 459 Sugimoto- cho, Sumiyoshi-ku, OSAKA, Japan a Immunological analysis of the structural molecules of the erythrocyte membrane. Mus musculus (Rodentia) b Erythroid differentiation of Friend virus-induced tumor cell. Same species as a FURUYA, M. Prof. — 7-3-1 Hongo, Bunkyo-ku, TOKYO, Japan • GABAJEVA, Mrs. N.S. Cand.biol.sci. — Dept. of Embryol., Leningrad Univ., Mendeleevsky St. 5, LENINGRAD B-164, U.S.S.R. GABELLA, G. M.D. — Dept. of Anat, Univ. of Turin, Corso M.dAzeglio 52, 10126 TORINO, Italy GABIE (GUBBAY), Mrs. V. Ph.D. — Dept. of Zool., Univ. of the Witwatersrand, Milner Park, JOHANNESBURG, S.Africa a Neural crest cells in vitro: 1. effect of thyroxine on differentiation of pigment cells; 2. autoradiography of the relation between histones and RNA synthesis. Xenopus laevis (Anura) (with A. ANDREW, Dept. of Anat.) GABRIEL, M. L. Ph.D., Prof. — Biol. Dept., Brooklyn Coll., NEW YORK, Brooklyn, NY. 11210, U.S.A. a Development of vertebrae; meristic variation. (Teleostei) GABRIEL-ROBEZ (KREMER). Mrs. O. Dr.en Med. — Inst, d Embryol., Fac. de Med.. Rue Kirschleger, 67 STRASBOURG, France a Chimioteratogenese. (Aves; Mammalia) GAGE, L. P. Ph.D. -, Dept. of Cell Biol., Roche Inst, of Molec. Biol., NUTLEY, N.J. 07110, U.S.A. a Silk gland development and differentiation, especially silk fibroin synthesis, fibroin message synthesis, and isolation of the fibroin gene. Bombyx mori (Lepidoptera) (with Y. SUZUKI and D. D. BROWN) GAGINSKAYA, Mrs. E. R. — Biol. Inst., Leningrad State Univ., LENINGRAD B-164, U.S.S.R. a Morphology, cytochemistry, and autoradiography of oogenesis, especially nuclear apparatus behavior during oocyte growth. (Teleostei), (Fringillidae, Passeriformes, Aves) 61 GAILLARD, J. A. M.D. — Dept. of Pathol., Central Lab., Centre Hospitalier Region., rue Saint-Louis, 27 EVREUX, France a Embryonic tumors; germ cell tumors; dysembryomas of ovary and testis; blastemal tumors. Homo sapiens (Primates) b Comparative developmental morphology of embryoids and first stages of normal ova. Homo sapiens (Primates) c Extra-embryonic structures in embryomas. Homo sapiens (Primates) GAILLARD, P. J. M.D., Prof. — . Lab. for Cell Biol, and Histol., State Univ., Rijnsburger- weg 10, LEIDEN, Netherlands • a Hormones and bone development (organ culture, enzyme chemistry, isotope techniques). Mus musculus (Rodentia) b Imidazol and its derivates and bone development (organ culture). Same species as a GAINO, Miss E. Dr.Biol.Sci. — 1st. di Zool., Univ. di Genova, Via Balbi 5, 16126 GENOVA, Italy a Sexual dimorphism in the embryos of a parthenogenetic form. Penilia avirostris (Cladocera, GALAND, G. D.E.S. — Lab. de Physiol. Anim., Fac. des Sci., B.P. 347, 51 REIMS, France a Functional development of small intestine. Rattus norvegicus (Rodentia) GALL, J. G. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. • GALLENI, L. Dr.Biol.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, Italy a Lampbrush chromosomes. (Anuca) GALLERA, J. D.Sc. — Lab. d'Embryol. Exper., Inst. d'Histol., Univ. de Geneve, 20 rue de l'Ecole de Medecine, 1211 GENEVE 4, Switzerland • a Mechanisms involved in the induction process. Gallus domesticus (Aves) b Comparison between the inductive capacities of the presumptive endoblast and mesoblast cells located in the primitive streak. Same species as a c Meaning of the period of latency inserted between the induction time and the beginning of neurulation. Same species as a d Subcellular changes during early morphogenesis (electron microscopy). (Aves) (with G. NICOLET) GALLIEN, L. Dr.es Sci., Prof. — Lab. d'Embryol., Univ. de Paris VI, 9 quai St.Bernai d, 75 PARIS Ve, France • GALSTON, A. W. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. a Analysis of molecular basis for the developmental roles of hormones such as indole-3- acetic acid and of light (absorbed by phytochrome) . Pisum sativum (Papilionaceae) b Plant protoplasts: preparation by the use of cell-wall digesting enzymes; culture; cell wall regeneration; attempts to achieve fusion. Pisum sativum (Papilionaceae); Avena sativa (Gramineae) ; Nicotiana tabacum (Solanaceae) GALUN, E. Ph.D. — Dept. of Plant Genet., The Weizmann Inst, of Sci., REHOVOTH, Israel a Determination of sex expression: genetic and hormonal factors. Cucumis spec. (Cucur- bitaceae) b Photo-induced changes in differentiation: structural, biochemical & genetic aspects. Trichoderma spec. (Fungi imperfecti) GAMBLE, H. J. Ph.D. — Dept. of Anat., St. Thomas's Hosp. Med. School, LONDON S.E.I, England a Development of peripheral nervous tissues in the foetus. Homo sapiens (Primates) b Development of spinal cord in the foetus (electron microscopy). Homo sapiens (Primates) GARBER (BILSKY), Mrs. B. B. Ph.D. — , Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637, U.S.A. GARCIA AUSTT, E. M.D., Prof. — Sect, of Exper. Neurol., Inst, of Neurol., Hosp. de Clinicas, Piso 2, MONTEVIDEO, Uruguay a Influence of uterine contractions on fetal EEG. Homo sapiens (Primates) GARCIA-BELLIDO, A. Ph.D. — Sect. Developm. Genet., Inst, of Genet, and Anthropol., Velazquez 144, MADRID 6, Spain a Developmental genetic analysis of the wing imaginal disc; development in situ and in culture. Drosophila melanogastec (Diptera) b Nature of the specificity of cell recognition in cell aggregates of imaginal discs; cell affinities of normal versus mutant genotypes. Drosophila melanogastec (Diptera) GARDENGHI, G. Dr. — Inst, of Zool., Univ. of Bologna, Via S.Giacomo 9, 40126 BOLOGNA, Italy a In vitro culture of larval gonads. Bufo bufo (Anura) b Hormonic regulation of ovarian and Bidder's organ oogenesis. Same species as a GARDNER, R. L. Ph.D. — Marshall Lab., Dept. of Physiol., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3EG, England a Differentiation, determination, and interaction between trophoblast and inner cell mass in the blastocyst (microsurgery, microinjection) . Mus musculus (Rodentia) 62 b Interaction of normal and mutant genotypes in development of chimaeras produced by microsurgery and microinjection. Mus musculus (Rodentia) c Investigation of X-chromosome markers by transfer of single cells from early female embryos heterozygous for X-linked genes to host blastocysts of a distinct genotype. Mus musculus (Rodentia) GARGOUiL, Y. M. Dr.es Sci., Prof. — Lab. de Physiol. Anim., Fac. des Sci., Univ. de Poitiers, 40 av. du Recteur Pineau, 86 POITIERS, France a Electrophysiology of embryonic heart and muscles; study of the development of membrane properties. Ambystoma tigrinum (Urodela), Cavia porcellus, Rattus norvegicus (Rodentia) b Histology and electron microscopy of the embryonic heart. Rattus norvegicus (Rodentia) GARROD, D. R. Ph.D. — Dept. of Biochem., Univ. of Leicester, LEICESTER LEI 7RH, England a Morphogenetic movement and cell adhesion. Dictyostelium discoideum (Acrasiales) GARROD, Mrs. E. M. F. — Dept. of Zool., University of British Columbia, VANCOUVER 8, B.C., Canada a The effect of transplanted epidermis from the hind limb field on regeneration of the fore- limb: structure of muscle, cartilage, and bone. Triturus viridescens (Urodela) (with C. V. FINNEGAN) GARWEG, G. Dr.med. — Anat. Inst, der Univ., Abt. fur Neuroanat, Nussallee 10, 53 BONN, W.Germany GASC, J. M. Lic.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a X-ray damages on embryonic intestine at biochemical level. Gallus domesticus (Aves) b Incorporation of tritiated thymidine in gonads in organ culture of normal animals and after treatment with x-rays or steroid hormones. Gallus domesticus. Anas platyrhynchos (Aves) GASSER, F. Dr.Biol. — Lab. de Biol. Gener., Univ. Paul-Sabatier, 118 Route de Narbonne, 31 TOULOUSE 04, France a Genetical aspects of protein differentiation in embryonic stages. Pleurodeles waltlii (Urodela) (with J. C. BEETSCHEN) GASSER, R. F. Ph.D., Prof. — Dept. of Anat., Med. Center, Louisiana State Univ., 1542 Tulane Ave., NEW ORLEANS, La. 70112, U.S.A. a Tongue development. Mus musculus, Rattus spec. (Rodentia), Homo sapiens (Primates) b Atlas of developmental stages. Homo sapiens (Primates) GASTON, J. D. Ph.D., Prof. — Dept. of Anat., Developm. Biol. Center, Western Reserve Univ. School of Med., 2119 Abington Rd., CLEVELAND, Ohio 44106, U.S.A. a Nucleic acids and protein synthesis during development (ribosomes). Rana pipiens, Xenopus laevis (Anuca) GATEFF (ZOLLIKOFER) , Mrs. E. A. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Normal and abnormal (neoplastic) development of the nervous system and the imaginal discs (tissue culture) . Dcosophila melanogaster (Dipteca) b Analysis of genetical controlled neoplasms. Same species as a GATES, A. H. Ph.D. — Div. of Genet., Univ. of Rochester, 260 Crittenden Blvd., ROCHES- TER, N.Y. 14620, U.S.A. a Physiological and genetical mechanisms regulating egg and embryo development. Mus musculus (Rodentia) GAUTHIER, Miss G. F. Dr. — Lab. of Cell Biol., Dept. of Biol. Sci., Wellesley Coll., WELLESLEY, Mass. 02181, U.S.A. GAY, Miss H. Ph.D., Prof. — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Molecular structure of chromosomes during genetic activity, especially nucleic acids and proteins of heterochromatin and euchromatin (electron microscopy, cytochemistry, auto- radiography, biochemistry) . Drosophila melanogaster (Diptera) GAYER, J. Dr. — Dept. of Biol., Charles Univ., §imkova 870, HRADEC KRALOVfi, Czechoslovakia GAZE, R. M. Ph.D. — Developm. Biol. Div., Natl. Inst, for Med. Research, Mill Hill, LONDON N.W.7, England a Functional aspects of regeneration of the optic nerve. Xenopus laevis, Rana temporaria (Anura) b Cellular changes in tectum and eye after optic nerve section. Triturus cristatus (Urodela) c Functional results of tectal grafting. Carassius auratus (Teleostei) d Development of visual connections in embryos. Xenopus laevis (Anura) GEBHARDT, D. O. E. Ph.D. — Dept. of Obstet. and Gynecol., Academic Hospital, LEI- DEN, Netherlands a Neonatal respiration and metabolism. Ovis aries (Artiodactyta), Homo sapiens (Primates) b Amniotic fluid analysis. Homo sapiens (Primates) GEHRING, W. J. Ph.D., Prof. — , Dept. of Anat., Yale Univ., NEW HAVEN, Conn. 06510, U.S.A. 63 GEIGY, R. Dr., Prof. — Schweiz. Tropeninst., Socinstr. 57, 4051 BASEL, Switzerland — Zool. Anstalt der Univ., Rheinsprung 9, 4000 BASEL, Switzerland GEILENKIRCHEN, W. L. M. Ph.D. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands a Metabolism and respiration of egg and embryo. Lymnaea stagnalis (Gastropoda) b Influence of various kations on development. Same species as a c Mechanisms of cytodifferentiation in cleaving eggs. Same species as a d Germinal localization in eggs. Dentalium spec. (Scaphopoda) ; Patella spec. (Gastropoda) GENIS-GALVEZ, J. M. Med.Dr., Ph.D., Prof. — Dept. of Anat., Fac. of Med., Univ. of Granada, GRANADA, Spain GEORGE, J. C. Ph.D., Prof. — Dept. of Zool., Univ. of Guelph, GUELPH, Ont., Canada GEORGES, Miss D. Dr.spec — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Development of the gonads: role of the neural complex and other factors in sperma- togenesis and oogenesis. Ciona intestinalis (Ascidiacea) b Development and cyclic changes in the neural gland; morphology, physiology, and ultra- structure. Same species as a GEORGIEV, G. P. Dr. — Inst, of Molec. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 32, MOSCOW B-312, U.S.S.R. GERHARDT, Mrs. S. — Arbeitsgr. Prof. G. H. M. Gottschewski am Max-Planck-Inst. fur Immunbiol., Stefan-Meier-Str. 8, 7& FREIBURG i.Br., W.Germany a Differentiation of primordia analysed by the use of actinomycin, applicated in early cleavage stages. Oryctolagus cuniculus (Lagomorpha) GERISCH, G. Dr.rer.nat. — Friedrich-Miescher Lab. der Max-Planck Gesellschaft, Spemann- str. 37-39, Postfach 2109, 74 TUBINGEN, W.Germany a Differentiation of cell membranes. Dictyostelium discoideum (Acrasiales) b Immunochemical studies on cell differentiation Same species as a c Developmental effects and chemistry of an inhibitor of cyclic AMP-phosphodiesterase. Same species as a GERLINGER, P. Dr.en Med. — Inst. d'Embryol., Fac. de Med., 11 rue Humann, 67 STRAS- BOURG, France a Etude de la formation des constituants de l'oeuf. Gallus domesticus (Aves) b The possible role of liver tRNAser isoacceptors and seryltRNA synthetase in phosvitin synthesis. Gallus domesticus (Aves) GERZELI, G. Prof. — Inst, of Comp. Anat., Univ. of Pavia, Piazza Botta 10, 27100 PAVIA, Italy a Egg-shell formation and vitellin cells (histochemistry, histomorphology, biochemistry). (Platyhelminthes) b Allantois and urinary bladder (histochemistry, histomorphology) . (Chelonia) GETTMANN, W. W. — Inst, fur Genet., Univ. des Saarlandes, 66 SAARBRUCKEN 11, W.Germany a Influence of inorganic ions on DNA synthesis and other events of the cell cycle. Locusta spec, Schistocerca spec. (Orthoptera), Chironomus spec. (Dipteva) GEUSKENS, M. D.Sc. Zool. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67 rue des Chevaux, 1640 RHODE-ST-GENESE, Belgium a Etude par microscopie electronique et autoradiographic a haute resolution, de l'influence des constituants cytoplasmiques sur la transcription des genes au cours du developpement embryonnaire. Xenopus laevis (Anura), Pleucodeles waltlii (Urodela), Ilyanassa obsoleta (Gastropoda) GEZELIUS, N. G. B. Fil.lic — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Studies with labelled precursors of the correlations between protein synthesis and morphol- ogical development and of the interactions between nucleus and cytoplasm. Paracentrotus lividus, Psammechinus miliaris (Echinoidea) GHIRARDELLI, E. Prof. — Inst, of Zool. and Comp. Anat., Univ. of Trieste, Via A. Valerio 32, 34127 TRIESTE, Italy a Germ cell differentiation. (Planariidae, Turbellaria) b Germ cell differentiation. (Bidder's organ differentiation). Bufo bufo (Anura) c Germ cell determinant. Spadella cephaloptera (Chaetognatha) GIACOBINI, G. M.D. — Dept. of Human Anat., Univ. of Torino, Corso M. DAzeglio 52, 10126 TORINO, Italy a Development of neuro-muscular correlations in the embryo; choline acetyltransferase (ChAc) and acetylcholinesterase (AChE) activity. Gallus domesticus (Aves) b Developmental changes of enzymes involved in the metabolism of transmitters in spinal and sympathetic ganglia of the embryo. Same species as a GIANNETTI, A. M.D. — Dept. of Dermatol., Univ. of Pavia, Policlinico S.Matteo, 27100 PAVIA, Italy a Mucoproteins in fetal skin. Homo sapiens (Primates) b Developmental changes of glycosaminoglycan content in fetal epidermis. Homo sapiens (Primates) 64 GIANNINI (FORLI), Mrs. E. Dr.Biol.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, Italy a Development and cytology. (Tricladidea, Turbellaria) GIBBONS, A. F. E. Ph.D. — Worcester Found, for Exper. Biol., 222 Maple Ave., SHREWSBURY, Mass. 01545, U.S.A. a Influence of altering the uterine environment by X-irradiation during the preimplantation phase of pregnancy on implantation and fetal development. Rattus norvegicus (Rodentia) GIBLEY, C. W., Jr. Ph.D. — Pennsylvania Coll. of Podiat. Med., 804 Pine St., PHILA- DELPHIA, Pa. 19107, U.S.A. a Histochemistry and fine structure of the developing excretory system. Rana pipiens (Anuva), Gallus domesticus (Aves), Mus musculus (Rodentia) b Histochemistry and electron microscopy of differentiating experimentally induced renal carcinomas. Mesocricetus auratus (Rodentia) GIBSON, I. Ph.D. — School of Biol. Sci., Univ. of East Anglia, University Plain, NOR- WICH, NOR 88C, England a Nuclear-cytoplasmic interaction in single cells. Paramecium aurelia (Ciliata) b Function and origin of B-chromosome DNA during development. M yrmeleotettix maculatus. (Acrididae, Orthopteca) GIDHOLM, L. Fil.Dr. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Larval development. (Syllidae, Polychaeta) GIHR, Miss M. Dr.phil. — Brain Anat. Inst., Untere Zollgasse 71, (Waldau), 3072 OSTERMUNDIGEN-BE, Switzerland a Ontogenesis of the brain. (Cetacea) GILANI, S. H. Ph.D. — Dept. of Anat., Coll. of Med. and Dent., 100 Bergen St., NEWARK, N.J. 07103, U.S.A. a Mechanism of heart morphogenesis (morphology and cytology), and teratogenic action of nicotine, lead, and other substances. Gallus domesticus (Aves) GILBERT, P. W. Ph.D., Prof. — Div. of Biol. Sci., Cornell Univ., ITHACA, N.Y. 14850, U.S.A. • GILBERTSON, D. E. Ph.D. — Dept. of Zool., Coll. of Biol. Sci., Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. a Metabolism of nucleic acids and proteins in larvae. (Schistosoma mansoni (Trematoda) GILES, E. T. Ph.D., D.I.C. — Dept. of Zool., Fac. of Sci., Univ. of New England, ARMI- DALE, N.S.W. 2351, Australia GILLOT (PERDRIX), Mrs. S. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Etude autoradiographique du metabolisme des acides nucleiques dans les noyaux endo- polyploides. Drosophila melanogaster (Diptera), Bombyx mori, Galleria mellonella (Lepidopteva) GINSBURG, Mrs. A. S. Dr.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Cytological, electron microscopical, and experimental investigations of the fertilization process. Spisula sachalinensis, Mactra sulcataria (Lamellibranchia) , Amby stoma mexica- num (Urodela) GINSBURGER-VOGEL, T. Agr. — Lab. de Genet. Evol. et de Biometrie, C.N.R.S., 91 GIF-sur-YVETTE, France GINTER, E. K. Dr. — Lab. of Radiobiol., Inst, of Med. Radiol., OBNINSK, Kaluga Distr., U.S.S.R. a Determination of imaginal disc cells in normal and mutant stocks. Drosophila melano- gaster (Diptera) GIORGI, F. Dr.Biol.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, Italy a Structure and function of lampbrush chromosomes. (Anura) b Molecular hybridization in embryo, larva, and adult. (Amphibia) GIOVANNINI, E. Dott.Sci.Biol. — 1st. di Biol. Gener., Univ. di Perugia, Via del Giochetto, 06100 PERUGIA, Italy a Sviluppo dei meccanismi eritropoietici durante la vita neonatale. Oryctolagus cunicutus (Lagomorpha) b Sviluppo del sistema neurosecretorio in embrioni. Allolobophora caliginosa (Oligochaeta) GIPOULOUX, J.-D. Dr.es Sci. — Lab. de Biol. Anim. A, Univ. Bordeaux I, Av. des Facultes, 33 TALENCE, France a Etude experimentale de la morphogenese de l'appareil genital. (Anura) b Evolution des cellules germinales. (Anura) c Etude de 1'ultrastructure embryonnaire. (Anura) d Etude experimentale des facteurs de la migration des cellules du blasteme de l'uretere primaire. Rana spec, Bufo bufo, Discoglossus spec, Xenopus spec. (Anura) e Etude descriptive et experimentale de la formation et de la differentiation des somites. Same species as d 65 GIRARD (DECHAMBE), Mrs. C. Dr.Biol.Anim. — Lab. de Biol. Anim. A, Univ. Bordeaux I, Av. des Facultes, 33 TALENCE, France a Modalites et facteurs de formation de l'ostium et de l'oviducte. (Anura) b Modalites de la metamorphose de lappareil excreteur. Rana dalmatina, Bufo bulo (Anura) c Modalite de formation des glandes epidermiques in vivo et in vitro durant la metamorphose. Alytes obstetricans (Anura) GIRARD, H. Dr.es Sci. — Dept. of Anat.. McMaster Univ., HAMILTON, Ont, Canada a Physiologie embryonnaire: catheterisme de fins vaisseaux, injections vasculaires, pression arterielle, action d'adrenaline et noradrenaline, pH et gaz du sang. Gallus domesticus (Aves) GIROUD. A. Prof. — Lab. d'Histol.-Embryol. B, Fac. de Med., 45 rue des Sts. Peres, 75 PARIS Vie, France • a L'influence teratogene des infections Rickettsiennes. Rattus rattus, Mus musculus (Rodentia) b Mecanismes des abnormalites diverses, specialement du systeme nerveux. Same species as a c Teratogenic action of vitamin deficiency. Mus musculus, Mesocricetus auratus (Rodentia) d Late influences on the developing nervous system. Rattus spec. (Rodentia) GITLIN, G. Ph.D., Prof. — Dept. of Anat., The Hebrew Univ., Hadassah Med. Sch., P.O. Box 1172, JERUSALEM, Israel GIUDICE, G. M.D., Prof. — 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, Italy • a Protein synthesis during early development. Paracentrotus lividus (Echinoidea) b Aggregation of cells isolated from embryos. Paracentrotus lividus (Echinoidea) c RNA synthesis during early development. Paracentrotus lividus (Echinoidea) GIUNTA, C Dr. — , Inst, of Biochem., Univ. of Turin, Via Giolitti 34, 10123 TORINO, Italy GLADE, R. W. Ph.D., Prof. — Dept. of Zool., Marsh Life Sci. Bldg., Univ. of Vermont, BURLINGTON, Vt. 05401, U.S.A. • GLAS, P. M.Sc. — Dept. of Anat. and Embryol., State Univ. of Groningen, Oostersingel 69, GRONINGEN, Netherlands a The early development of the commissures in the medial telencephalic area. Mus musculus (Rodentia) GLASS, Miss L. E. Ph.D. — Dept. of Anat., Sch. of Med., Univ. of California, SAN FRAN- CISCO, Calif. 94122, U.S.A. a Maternal macromolecules transferred to developing ovarian oocytes and oviductal or uterine embryos; interrelationships with macromolecules synthesized by the oocyte or embryo itself. Mus musculus (Rodentia), Lepus spec. (Lagomorpha) GLATZER, K. H. Dr.rer.nat. — Inst, fur Allgem. Biol., Univ. Dusseldorf, Mettmanner Str. 16-18, 4000 DUSSELDORF, W.Germany a Egg and embryo development, especially electron microscopy concerning vitellogenesis. Corydendrium parasiticum (Hydrozoa) b Gene physiology, Y chromosome. Drosophila spp. (Diptera) c Genetic regulation of differentiation; male germ line cells. Drosophila spp. (Diptera) GLENISTER, T. W. D.Sc, Ph.D., Prof. — Dept. of Anat. Charing Cross Hosp. Med. School, 62-65 Chandos Place, LONDON W.C.2, England • a Reaction of genital tract tissues to hormones in vitro. (Mammalia) b Blastocyst implantation in vitro. (Mammalia) c Behaviour of trophoblast in vitro. (Mammalia) d Development of embryos in vitro. (Mammalia) e Ultrastructure of embryo-maternal relationships during implantation. (Mammalia) GLOBERSON, A. Dr. — Dept. of Cell Biol., Weizman Inst, of Sci., REHOVOTH, Israel • GLOOR, H. J. Ph.D., Prof. — Stat, de Zool. Exper., Univ. de Geneve, 154 Route de Malagnou. 1224 CHENE BOUGERIES, Switzerland GODET (NONNENMACHER), Mrs. J. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a La differenciation cellulaire dans le tissu sanguin et les diverses formes d'hemoglobine. Gallus domesticus (Aves) GOEDBLOED, J. F. M.D. — . Anat.-Embryol. Lab., State Univ. of Leiden, Wassenaarseweg 62, LEIDEN, Netherlands GOETINCK, P. F. Ph.D. — Dept. of Anim. Genet., Storrs Agric. Exper. Station, Univ. of Connecticut, STORRS, Conn. 06268, U.S.A. • a Mesoderm-ectoderm interaction in differentiation (limb, scales, and feathers) . Gallus domesticus (Aves) b Chondroitin sulfate and collagen metabolism in micromelic mutants. Same species as a GOETZER, A. M.Sc. — Univ. of Zululand, Private Bag, Kwa-Dlangezwa, EMPANGENI, Natal, S.Africa a Ontogenesis of the chondrocranium, especially the homologies of the elements of the viscerocranium. Barbus holubi (Cyprinidae, Teleostei) GOFF, R. A. Ph.D., Prof. — Dept. of Zool., Univ. of Oklahoma, 730 Van Vleet Oval, Rm. 222, NORMAN, Okla. 73069, U.S.A. 66 a Analysis of the development of the appendicular skeleton by means of x-rays. Gallus domesticus (Aves) b Histochemical analysis of morphogenesis. Gallus domesticus (Aves) GOLDBERG, S. M.D. — Dept. of Ophthalmol., New York Med. Coll., Flower and 5th Ave. Hospitals, NEW YORK, N.Y. 10029, U.S.A. a Development of the retina and visual pathways. Gallus domesticus (Aves) b Neural regeneration in the retina and visual pathways. Rana catesbeiana (Anura), Gallus domesticus (Aves), Rattus rattus (Rodentia) GOLDHOR, Miss S. Ph.D. — Biol. Inst., Hacettepe Univ., ANKARA, Turkey • GOLDIE, M. Ph.D. — Dept. of Biol., Loyola Univ., 6525 N. Sheridan Rd., CHICAGO, 111. 60626, U.S.A. a Morphogenesis of the tail. Gallus domesticus (Aves) b Site of action of factors inducing the rumpless phenocopy. Same species as a c Effects of excess nutrients on early development in o v o and in vitro. Sames species as a d Effect of cytochalasin on the embryo. Same species as a GOLDSMITH, Miss M. Ph.D. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, USA. a The role of cytolysosomes in cell death and the hormonal control of cellular events during metamorphosis (electron microscopy, histo- and cytochemistry). Rhodnius prolixus (Hemiptera) , Rana pipiens (Anura) b Epidermal-mesodermal relationships during cell death and cell differentiation in the integument during larval stages and metamorphic climax, studied at the level of cellular ultrastructural changes, in vivo and in vitro. Rana pipiens (Anura) GOLDWASSER, E. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637, U.S.A. • GOLISHEVA, Miss G. -^ Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Regularities of transformation of the mitotic cycle during cleavage. ( Acipenseridae, Chondrostei; Amphibia) (with T. A. DETTLAFF) GOMEZ DUMM, C. L. M.D., Prof. — Inst, de Embriol., Biol, e Histol., Fac. de Cienc. Med., Univ. Nac. de La Plata, 60 y 120, LA PLATA, Argentina a Ultrastructure of the pars distalis of the hypophysis in growth situations. Mus musculus (Rodentia) GOMOT, L. Dr.es Sci., Prof. — Lab. de Zool., Fac. des Sci., Place Marechal Leclerc, 25 BESANCON, France a Developpement embryonnaire de la glande uropygienne. (Aves) (avec J. BRIDE) b Differenciation sexuelle des hybrides. (Aves) (avec A. DERAY) c Organogenese de la glande mammaire. Oryctolagus cuniculus (Lagomorpha) (avec A. PROPPER) d La differenciation de la glande hermaphrodite. Helix aspersa (Pulmonata, Gastropoda) (avec A. GUYARD) e Le developpement in vivo et in vitro du coeur. Rana temporaria, Xenopus laevis (Anura) (avec M. BRIDE-VUILLET) f Evolution histophysiologique de l'appareil reproducteur au cours de l'ontogenese chez des hybrides steriles. Cairina moschata x Anas platyrhynchos (Aves) (avec C. R. MAR- CHAND) g Determinisme de la sexualite. Paludina vivipara (Prosobranchia, Gastropoda) (avec B. GRIFFOND) GONA, A. G. Ph.D. — Dept. of Anat, Coll. of Med. and Dent., 100 Bergen St., NEWARK, N.J. 07103, U.S.A. a Origin of collagen in the basement lamella of the tail fin during prolactin-induced growth and regeneration. Triturus (Diemictylus) viridescens (Urodela), Rana pipiens, R. cates- beiana (Anura) b Prolactin-thyroid interaction during metamorphosis. Triturus (Diemictylus) viridescens (Urodela) GONDOS, B. M.D. — Dept. of Pathol., Harbor Gen. Hosp., 1000 W.Carson St., TORRAN- CE, Calif. 90509, U.S.A. a Ultrastructure of ovarian and testicular germ cell development. (Oryctolagus cuniculus (Lagomorpha), Homo sapiens (Primates) b Ultrastructure of fertilization and cleavage. Oryctolagus cuniculus (Lagomorpha) GONTCHAROFF, Miss M. Prof. — Lab. de Biol. Cell., Fac. des Sci., B.P. 347, 51 REIMS, France a Regeneration. Lineus ruber (Anopla, Nemertea) b Analogues of DNA in embryonic development. Strong ylocentrotus purpuratus (Echinoidea) c Regulation of cell division. Physarum polycephalum (Eumycetozoina) GONZALEZ-SANTANDER, R. Dr.med. — Inst. Cajal, Velazquez 144, MADRID 6, Spain a Citodiferenciacion de los gonocitos b Ultraestructura de la cresta neural. Gallus domesticus (Aves) c Ultraestructura de los ovocitos. Homo sapiens (Primates) 67 GOODWIN, B. C. Ph.D. — School of Biol. Sci., Univ. of Sussex, Falmer, BRIGHTON, BN1 9QG, England a Control of regeneration by local electrical and biochemical stimulation. Hydra littoralis (Coelenterata) b Analysis of field phenomena in early gastrulae by grafting techniques, temperature perturbation, and electrical stimulation. Xenopus laeuis (Anuta) c Morphogenetic movements during gastrulation and neurulation. Xenopus laevis (Anuva) GOPALAN, H. N. B. — Inst, fur Genet., Univ. des Saarlandes, 66 SAARBRGCKEN 11, W.Germany a Influence of organic ions on puffing patterns in giant chromosomes. Chironomus thummi (Diptera) b Cytology and cytogenetics. Dacus cucucbitae (Diptera) GOPINATH, G. M. M.Sc. — Dept. of Zool., Fac. of Sci., M.S. Univ. of Baroda, BARODA- 2, India a Development of integument and plumage. (Aves) GORDON, H. P. Ph.D. — , Dept. of Oral Biol., School of Dent., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Developmental phenomena associated with myocardial cell interactions in vitro. Gallus domesticus (Aves) b Onset of protein synthesis and its control in parotid gland: epithelial-mesenchymal inter- action leading to biochemical differentiation and exogenous agents affecting control of secretory events in vitro including synthesis, storage, and expulsion of proteins. Rattus rattus (Rodentia) GOSHCHETELIANI, I. S. Cand.biol.sci. — Lab. of Developm. Biol, of the Poultry, Peda- gogical Inst., KUTAISI, Georgian S.S.R., U.S.S.R. a Influence of albumen of different breeds on embryonic and postembryonic development. Gallus domesticus (Aves) GOSS, R. J. Ph.D., Prof. — Div. of Biol, and Med. Sci., Brown Univ., PROVIDENCE, R.I. 02912, U.S.A. • a Compensatory renal hypertrophy. Rattus rattus (Rodentia) b Atrophy of auxiliary heart grafts. Same species as a c Regeneration and wound healing in ear, Oryctolagus cuniculus (Lagomorpha) and wing (C/ziroprera) GOSSWALD, K. Dr.phil., Prof. — Inst, fur Angew. Zool., Univ. Wiirzburg, Rontgenring 10, 87 WURZBURG, W.Germany a Development. (Formicinae, esp. Formica cufa group, Hymenoptera) GOTTING, K. J. Dr.rer.nat, Prof. — I. Zool. Inst., Naturw. Fak., Univ. Giessen, Stephan- str. 24, D-63 GIESSEN, W.Germany a Electron microscopy of oogenesis in marine forms. (Teleostei) b Viviparity. Zoarces viviparus (Teleostei) GOTTLIEB, F. J. Ph.D., Prof. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, U.S.A. a The development and differentiation of the wing imaginal disc. Drosophila melanogaster (Diptera), Ephestia kiihniella (Lepidoptera) b Genetic control and ultrastructure of development of pigmentation in the eye and testis. Ephestia kiihniella (Lepidoptera) c Genetic control and ultrastructure of the effects of female sterile mutants. Drosophila melanogaster (Diptera) GOTTLIEB, G. Ph.D. — Psychol. Lab., Dorothea Dix Hosp., RALEIGH, N.C. 27611, U.S.A. a Behavioral development of foetuses and embryos. Anas platyrhynchos, Gallus gallus (Aves) GOTTSCHEWSKI, G. H. M. Dr.phil.habil., Prof. — Max-Planck-Inst. fur Immunbiol., Stefan-Meier-Str. 8, 78 FREIBURG i.Br., W.Germany a Teratogenic influence of maternal metabolic status on the embryo. Oryctolagus cuniculus (Lagomorpha), Mus musculus (Rodentia) b Determination and differentiation of organ primordia. Oryctolagus cuniculus (Lago- morpha), Mus musculus (Rodentia) c Effects of agents after application in the early cleavage stage. (Mammalia) GOTTSCHLING, H. Dr. — Inst, fur Biochem. und Molek. Biol., Freie Univ. Berlin, Arnim- allee 22, 1 BERLIN 33, W.Germany a Isolation, characterization, and function of tRNAs and aminoacyl-tRNA-synthetases from embryos. Gallus domesticus (Aves) b Isolation, structure, and function of ribosomes and protein synthesis in vivo and i n vitro in the embryo. Same species as a GOTZOS-CAPPELLI, Mrs. B. Dr.Biol. — Inst. d'Histol. et d'Embryol. Gen., Univ. de Fribourg, 1 rue Gockel, 1700 FRIBOURG, Switzerland a Culture of embryonic arteries. Gallus domesticus (Aves) GOTZOS, V. Dr. Vet. — Inst. d'Histol. et d'Embryol. Gen., Univ. de Fribourg, 1 rue Gockel, 1700 FRIBOURG, Switzerland a Culture of embryonic fibroblasts. Gallus domesticus (Aves) 68 GOUIN, F. J. Dr.es Sci. — Musee Zool. de l'Univ. et de la Ville, 29 Bd. de la Victoire 67 STRASBOURG, France victoire, o/ a Descriptive and comparative embryology and postembryonic morphogenesis. (Myriapoda; Insecta) b Review of all work in descriptive, comparative and/or experimental embryology and post- embryonic morphogenesis. (Myriapoda; Onychophora; Insecta) GOURDOUX (DESTRADE), Mrs. L. — Lab. de Physiol. Gen., Fac. des Sci. de Bordeaux Av. des Facultes, 33 TALENCE, France GRABOWSKI, C. T. Ph.D., Prof. — Dept. of Biol., Univ. of Miami, CORAL GABLES Fla. 33124, U.S.A. .' a Teratological effects of hypoxia and their morphogenetic and biochemical analysis. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) b Physiology of fluid and electrolyte balance in the early embryo and its relation to teratogenesis. Gallus domesticus (Aves), Rattus norvegicus, Oryctolagus cuniculus (Mammalia) c Blood chemistry of the young embryo. Same species as a d Serum potassium in development. Rattus spec. (Rodentia) GRAHAM, D. E. — Biol. Div., Oak Ridge Natl. Lab., P.O.Box Y, OAK RIDGE Tenn 37830, U.S.A. a Functions of satellite DNA's and macromolecular metabolism in regenerating tissues. Gecarcinus lateralis (Decapoda, Crustacea) (with D. M. SKINNER) GRAHN. I. — Zoophysiol. Inst., Univ. of Lund, Helgonavagen 3, 223 62 LUND, Sweden GRANGER (PARSONS), Mrs. N. Ph.D. — Dept. of Developm. and Cell Biol., Univ. of Calif., IRVINE, Calif. 92664, U.S.A. a Biochemistry and morphology of an isolated subcellular fraction of blastulae supporting a significant level of protein synthesis; mechanism of synthesis and the nature of the polypeptide products. Rana pipiens (Anura) b The feasibility of attaching aminoacyl-TRNA synthetases obtained from embryonic material to artificial matrices. Same species as a GRANGER, R. E. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Mode and time of action of insect hormones primarily ecdysones and juvenile hormone: cell cycles and determination; correlation of morphological changes with both quantitative and qualitative differences in RNA population (sucrose gradient centrifugation, acrylamide gel electrophoresis, DNA RNA hybridization). Gallevia mellonella (Lepidoptera) GRANT, Ph. Ph.D. — Dept. of Biol., Univ. of Oregon, EUGENE, Ore. 97403, U.S.A. • GRASSO, J. A. Ph.D., Prof. — Dept. of Anat., Boston Univ., 80 E.Concord St., BOSTON, Mass. 02118, U.S.A. a The relationship between various RNA species and the onset of hemoglobin synthesis. Triturus cristatus carntfex (Ucodela) b Red blood cell development in anaemic animals. Triturus spec. (Urodela) GRASSO, M. Dr., Prof. — Inst, of Zool., Univ. of Bologna, Via S.Giacomo 9, 40126 BOLOGNA, Italy a Role of neurosecretion in the regeneration and in the differentiation and ripening of the genital apparatus. Dugesia lugubris, Polycelis nigra (Turbellaria), Fasciola hepatica (Trematoda) b Descriptive and experimental study of development and sex differentiation of genital apparatus. Sepia officinalis (Cephalopoda) GRAVER, H.T. B.S. — Dept. of Biol., Grad. School of Arts & Sci.. Univ. of Pennsylvania, PHILADELPHIA, Pa. 19104, U.S.A. a Effects of operations on formation of dental lamina in the regenerating mandible. Triturus viridescens (Urodela) GRAY, D. J. Ph.D. — Dept. of Anat., Sch. of Med., Stanford Univ., STANFORD, Calif. 94305, U.S.A. GRAY, Miss F. H. Ph.D. — Dept. of Zool. and Entomol., The Ohio State Univ., 1735 Neil Ave., COLUMBUS, Ohio, 43210, U.S.A. a Hormonal control of metachemogenesis; post-emergence maturation of insects. Apis mellifera (Hymenopteca), Musca domestica (Diptera) GRAZIOSI, G. D.Sc. — Inst, of Zool. and Comp. Anat., Univ. of Trieste, Via A. Valerio 32, 34127 TRIESTE, Italy a Determination of the biological activity of the polar granules (irradiation, microinjection, removal of the polar cytoplasm). Drosophila melanogastec, D. hudei (Diptera) GREEN, Mrs. M. C. Ph.D. — The Jackson Lab., BAR HARBOR, Me. 04609, U.S.A. a Developmental genetics. Mus musculus (Rodentia) GREEN, P. B. Ph.D., Prof. — Dept. of Biol.. Univ. of Pennsylvania, PHILADELPHIA. Pa. 19104, U.S.A. • GREENGARD, O. Ph.D. — Dept. of Biol. Chem., Cane. Res. Inst., New England Deaconess Hosp., 185 Pilgrim Rd., BOSTON, Mass. 02215, U.S.A. GREENWOOD, M. S. Ph.D. — Biol. Dept, Middlebury College, 3rd Floor Science Center, MIDDLEBURY, Vt. 05743, U.S.A. 69 a Origin and physiology of roots regenerated by hypocotyl slices from dormant, mature embryos. Pinus lambertiana (Gymnospermae) b The cause of enhancement of auxin transport by pretreatment of embryos with auxin. Pinus lambertiana (Gymnospermae) GREGG, J. H. Ph.D., Prof. — Dept. of Zool., Univ. of Florida, GAINESVILLE, Fla. 32601, U.S.A. • a Developmental physiology (Acrasiales) GREGG, J. R. Ph.D., Prof. -*, Dept. of Zool., Duke Univ., DURHAM, N.C. 27706, U.S.A. • (no embryological work in progress) GREMIGNI, V. Dr.Biol.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, Italy a Cytochemistry and electron microscopy of oogenesis. (Tricladidea, Turbellaria) GRIFFOND (ROGNON), Mrs. B. Lic.es Sci. — Lab. de Zool., Fac. des Sci., Place Mare- chal Leclerc, 25 BESANgON, France a Determinisme de la sexualite. Paludina vivipara (Pcosobranchia, Gastropoda) (avec L. GOMOT) GRIGNON, G. Prof. — Lab. de Biol. Med., Univ. de Nancy I, 30 rue Lionnois, 54 NANCY, France a Ultrastructure du developpement du complexe hypothalamo-hypophysaire et de la glande surrenale. Gallus domesticus (Aves) GRILLO, H. C. M.D., Prof. — Dept. of Surgery, Massachusetts Gen. Hosp., BOSTON, Mass. 02114, U.S.A. a Biological characteristics and function of native tissue collagenases in wounds; partial purification and characterization. (Mammalia) b Tissue resorption in healing wounds. Oryctolagus cuniculus (Lagomorpha) GRILLO, T. A. I. Prof. — Dept. of Anat., Univ. of Ibadan, IBADAN, Nigeria • GRIM, M. MUDr. — Dept. of Anat., Charles Univ., U nemocnice 3, PRAHA 2, Czecho- slovakia a Prenatal development of muscles. Gallus domesticus (Aves), Homo sapiens (Primates) GROBSTEIN, C. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. • GRODZIfiSKI, Z. D.Sc, Prof.(Emer.) — Dept. of Comp. Anat., Jagellonian Univ., ul. Krupnicza 50, KRAKOW, Poland • a Yolk from the ripe egg; influence of hypo- and hypertonic NaCl solutions; supravital basic and acidic dyes; electron microscopy. Myxine spec. (Cyclostomata) b Structure of yolk platelets. Polypterus spec. (Chondrostei), Hydrolagus spec. (Holoceph- ali) , Latimeria spec. (Crossopterygii) c Thermal tolerance of larvae. Macropodus opercularis, Salmo tvutta, Perca fluviatilis (Teleostei) GROENENDIJK (HUIJBERS), Mrs. M. M. M.D., D.Sc. — Dept. of Med. Anat. and Embryol., State Univ. of Utrecht, Janskerkhof 3A, UTRECHT, Netherlands a Interrelation of embryonic gonads, thyroids, pituitaries and oviducts; mechanism of oviduct regression in male and female, and of right ovary regression in female (hemicastra- tion, castration, implantation of endocrine glands, administration of gonadal and other hormones) . Gallus domesticus (Aves) b Hormonal dependency of down feather pigmentation (castration, pituitary implantation, modification of thyroid hormone levels, administration of drugs (a -MSH etc.)). Same species as a GROS, D. Dr.3e Cycle — Lab. de Physiol. Anim., Univ. de Poitiers, 40 av. du Recteur Pineau, 86 POITIERS, France a Electron microscopy and electrophysiology of the heart before and after metamorphosis. Ambystoma tigrinum (Urodela) GROSCH, D. S. Ph.D. — Dept. of Genet., North Carolina State Univ., Gardner Hall, RALEIGH, N.C. 27607, U.S.A. a Egg production and survival of embryos after mother has ingested, or been injected with, chemical agents; without and with irradiation. Habrobracon spec. (Hymenoptera) b The effects of space flight on reproductive performance (weightlessness, dynamic factors of launching and recovery, and radiation effects). (Insecta) GROSS, J. M.D., Prof. — Developm. Biol. Lab., Massachusetts Gen. Hosp., BOSTON, Mass. 02114, U.S.A. • GROSS, P. R. — Dept. of Biol., Massachusetts Inst, of Technol., CAMBRIDGE, Mass. 02139, U.S.A. • GROTE, W. Dr.med. — Inst, fur Humangenet. und Anthropol., Univ. Diisseldorf, Ulenberg- str. 127, 4000 DUSSELDORF, W.Germany GRUFFYDD, LI. D. Ph.D. — Marine Sci. Labs., Univ. Coll. of N.Wales, MENAI BRIDGE, Anglesey, Wales, U.K. a Developmental biology. (Lamellibranchia) GRUNEBERG, H. Ph.D., M.D., D.Sc, F.R.S., Prof. — Dept. of Anim. Genet., Univ. Coll. London, Wolfson House, 4 Stephenson Way, LONDON NW1 2HE, England • a Developmental genetics. Mus musculus (Rodentia) 70 GRUNZ, H. Dr.rer.nat. — Inst, fur Biochem. und Molek. Biol., Fachbereich I (Vorklinik) Freie Univ. Berlin, Arnimallee 22, 1 BERLIN 33, W.Germany a RNA and protein synthesis with regard to aggregation of dissociated embryonic cells. (Amphibia) b Changes of cell affinity during morphogenesis. (Amphibia) c Competency in early development. Triturus alpestris, Ambystoma mexicanum (Urodela) GUARDABASSI, Miss A. Dr.nat.sci., Prof. — Inst, of Exper. Embryol., Univ. of Turin Via Giolitti 34, 10123 TORINO, Italy GUEDENET, J. C. Ing. — Lab. de Biol. Med., Univ. de Nancy I, 30 rue Lionnois, 54 NANCY, France a Ultrastructure du developpement du complexe hypothalamo-hypophysaire. Gallus domesti- cus (Aves) GUERRIER, P. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 1 1 Novembre 1918, 69 VILLEURBANNE, France a Etude microcinematographique du developpement. (Nematoda; Spiralis) GUICHARD (CHAVENAT), Mrs. A. M.es sci.biol.anim. — Lab. de Chim. Horm., Maternite de Port-Royal, 121 Bd. de Port-Royal, 75 PARIS XlVe, France a Biosynthesis of steroids and sterols in organ culture of immature gonads; influence of HCG on steroidogenesis. Gallus domesticus (Aves) b Cholesterol synthesis from acetate- 14C and utilization of endogenous cholesterol for progesteron synthesis in placenta perfused in vitro; influence of chorionic gonadotropin and LH. Homo sapiens (Primates) GUICHARD (CHAIX). Mrs. M. T. D.E.A. — Lab. de Physiol, des Insectes — Batiment A, Univ. de Paris VI, 1 1 quai Saint-Bernard, 75 PARIS Ve, France a Recherches descriptives et experimentales sur le developpement. Culex pipiens (Diptera) GUIRAO-PEREZ. M. Med.Dr., Prof. — Inst. F. Oloriz, Fac. of Med., Univ. of Granada, GRANADA, Spain GULAMHUSEIN, A. P. B.Sc. — Wellcome Inst, of Comp. Physiol., Zool. Soc. of London, Regent's Park, LONDON NW1 4RY, England a Reproduction, especially delayed implantation: 1. light - ultrastructural studies of the blastocyst and uterine epithelium; 2. histochemistry of the reproductive tract. Mustela erminea (Carnivora) b Light and electron microscopy of pre and post implantation changes in the uterus and the development of endotheliochorial placenta. Mustela putorius (Carnivora) GULLUNI (CUOMO), Mrs. M. Dr. — 1st. di Biol. Gen., Fac. di Med., Univ. di Roma, Policlinico Umberto I, 00100 ROMA, Italy a Effects of gravity acceleration during growth of primary root. Vicia faba (Papilionaceae) b Effects of 1-asparaginase during rejection of embryonic and larval transplants. Rana esculenta (Anuva), Triturus taeniatus (Urodela) GULYAS, B. J. Ph.D. — Dept. of Anat, Georgetown Univ., 3900 Reservoir Rd. N.W., WASHINGTON, D.C. 20007, U.S.A. a Delayed implantation: DNA, RNA, and protein synthesis in blastocysts (autoradiography, scintillation counting, etc.). Dasypus spec. (Edentata), Oryctolagus cuniculus (Lago- morpha) , Rattus spec, Mus musculus (Rodentia), Mustela vison (Carnivora) b Biochemistry and ultrastructure of formation and fate of annulate lamellae, nucleolar function, and blastocyst formation. Oryctolagus cuniculus ( Lagomorpha) , Rattus spec. (Rodentia) GUMBRECK, L. Ph.D., Prof. — Dept. of Anat. Sci., Univ. of Oklahoma Med. Center, 801 NE 13th St., OKLAHOMA-City, Okla. 73104, U.S.A. a Development of genital, ophthalmic and urinary anomalies as related to genes, with emphasis on hermaphroditic alterations. Rattus rattus (Rodentia) GUMPEL (PINOT), Mrs. M. Dr.es Sci. — Inst. dEmbryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a La croissance et la differenciation du bourgeon de membre in vitro. Gallus gallus (Aves) b Rapports mesenchyme axial - mesenchyme lateral dans l'organogenese du membre. Same species as a c Organogenese du mesonephros. Gallus gallus, Coturnix japonica (Aves) (avec Y. CROISILLE et C. S. MARTIN) GUNBERG, D. L. Ph.D., Prof. — Anat. Dept., Univ. of Oregon Med. School, 3181 S.W. Sam Jackson Park Rd., PORTLAND, Ore. 97201, U.S.A. a In vitro investigations of the metabolic requirements of early post-implantation embryos. Rattus norvegicus (Rodentia) b An investigation of the effects of teratogens on 6-30 somite embryos cultured in serum. Rattus norvegicus (Rodentia) wm ,-»«% t .. GUPTA, P. C. Ph.D. — Dept. of Zool., Univ. of Gorakhpur, GORAKHPUR, (U.P.), India GURAYA, S. S. Ph.D., D.Sc, Prof. — Dept. of Zool., Punjab Agric. Univ., LUDHIANA, Punjab, India , ... a Cytology and histochemistry of oogenesis. Herdmania pallida (Tunicata), (belachu), 71 Anolis carolinensis (Lacertilia), Bungarus coeculeus, Naja n. naja (Ophidia), Mesocricetus aucatus (Rodentia) b Cytology and histochemistry of spermatogenesis. Bubalus bubalis (Artiodactyla), Oedipomides oedipus. Pan troglodytes (Primates) GURDON, J. B. D.Phil. — Dept. of Zool., Univ. of Oxford. South Parks Rd., OXFORD OX1 3PF, England • GUSTAFSON, T. Fil.Dr., Prof. — Wenner-Gren Inst., Norrtullsgatan 16, S-113 45, STOCKHOLM, Sweden • a Morphogenetic movements and cell contacts. (Echinoidea) b Enzyme induction and repression in cell cultures GUYARD, A. Lic.es Sci. — Lab. de Zool., Fac. des Sci., Place Marechal Leclerc, 25 BESANCON, France a La differenciation de la glande hermaphrodite. Helix aspersa (Pulmonata, Gastropoda) (avec L. GOMOT) GWATKIN, R. B. L. Ph.D. — Dept. of Exper. Biol., Merck Inst, for Therap. Research, RAHWAY, N.J. 07065, U.S.A. a Studies on fertilization, implantation and early development. Mesocricetus auratus, Mus musculus (Rodentia) GYEVAI (T6TH), Mrs. A. T. Inst, of Exper. Med. of the Hung. Acad, of Sci., Morphol. Dept., Szigony u. 43, P.O.B. 67, BUDAPEST VIII, Hungary a Fine structure and hormonal activity of intact and cultured embryonic adrenal cells of different species HACCIUS, Miss B. Dr., Prof. — Inst, fur spez. Bot., Johannes-Gutenberg Univ., 65 MAINZ, W.Germany a Beeinflussung der Entwicklung von Embryonen durch Chemikalien (Wachstumsregulatoren; Phytokinine). Eranthis hiemalis (Ranunculaceae) b In vi t r o culture of callus cells with free tubular connections between the single cells. Cannabis sativa (Cannabinaceae) c I n v i t r o Kultur von Embryonen. Tulipa spec. (Liliaceae) d I n v i t r o Kultur von Geweben. Nicotiana spec. (Solanaceae) HACH. P. M.D. — Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4, PRAGUE 2, Czechoslovakia a Histogenesis of the hypophysis (comparative studies on the submicroscopic structure and enzyme histochemistry). Rattus rattus (Rodentia), Homo sapiens (Primates) b Peri- and postnatal differentiation of rough endoplasmic reticulum in acinar pancreatic cells (ratio free:bounded ribosomes). Rattus rattus (Rodentia) HADFIELD, M. G. Ph.D. — Kewalo Lab., Pacific Biomed. Research Center, Univ. of Hawaii, 2538 The Mall, HONOLULU, Hawaii 96822, U.S.A. a Sources of yolk and causative factors in the non-development of nurse eggs (cytochemistry, electron, phase-contrast, and interference-contrast microscopy). (Vermetidae, Gastropoda) b Externally induced metamorphosis and settling in marine larvae. (Gastropoda) HADJIISKI, P. Dr. — Lab. d'Histol., Fac. de Med. de Paris, 45 rue des Sts. Peres, 75 PARIS Vie, France a Development of the ovary. (Mammalia) HADORN, E. Dr.Phil., Prof. — Zool.-Vergl. Anat. Inst., Univ. Zurich, Kunstlergasse 16, CH-8006 ZURICH, Switzerland • a Determination, transdetermination and differentiation in cells of imaginal discs. Drosophila melanogaster (Diptera) HAGBERG, S. M.Sc. — Sect, of Ecol. Zool., Dept. of Biol., Univ. of Umea, 90187 UMEA, Sweden a Development of the olfactory organ (morphogenesis, histogenesis). Salmo trutta (Teleostei) HAGEDORN, H. H. Ph.D. — Inst, of Cell. Biol., Univ. of Connecticut, U-125, STORRS, Conn. 06268, U.S.A. a Yolk protein synthesis by the fat body. Aedes aegypti (Diptera) b Developmental patterns of protein synthesis by the fat body. Rhynchosciara hollaenderi (Diptera) HAGET, A. Dr.es Sci., Prof. — Lab. de Zool. Exper.. Univ. de Bordeaux I, Av. des Facultes, 33 TALENCE, France • a Activation du systeme ovulaire. Leptinotarsa spec. (Coleoptera) b Recherches sur l'edification de la blastule et de la gastrule. Same species as a c Segregation et migration des initiales germinales. Same species as a HAGIWARA, A. D.Sc. — Lab. of Developm. Biol., Zool. Inst., Fac. of Sci., Univ. of Kyoto, Kitashirakawa, Sakyo-ku, KYOTO, Japan a Lymphoid cell differentiation with respect to y-globulins synthesis. Mus spec. (Rodentia) HAGLUND, Miss B. M. Fil.lic. — Dept. of Zoophysiol., Univ. of Umea, S 901 87 UMEA, Sweden a Permeability and osmoregulation. Xenopus laevis, Rana spp. (Anura), Siredon mexicanum (Urodela) HAIDER, M. H. M.Sc. — Dept. of Zool., Univ. of Gorakhpur, GORAKHPUR, (U.P.), India 72 HAKANSSON, L. M.D. — Tornblad-Inst for Comp. Embryol., Biskopsgatan 7, S 223 62 LUND, Sweden a Chromosome biochemistry during development. Homo sapiens (Primates) HALBA, R. M.Sc. — Dept. of Vert. Zool., Univ. of Warsaw, Krakowskie Przedmiescie 26/28, WARSZAWA 64, Poland a Ossification of the skull. (Charadriidae, Aves) HALEY, L. E. Ph.D. — Dept. of Biol., Dalhousie Univ., HALIFAX, N.S., Canada a The time of activation of genes controlling some enzymes in development. Cotucnix coturnix japonica, Coturnix c. japonica x Gallus domesticus (Aves) HALEY, S. R. Ph.D. — Dept. of Zool., Univ. of Hawaii, 2538 The Mall, HONOLULU Hawaii 96822, U.S.A. a Origin of germ line, prelarval development, reproductive cycling, and developmental adaptations to the terrestrial environment. Ocypode cecatophthalmus, O. laevis (Brachyura, Crustacea) HALFER, Miss C. — 1st. di Genet, Univ. di Milano, Via Celoria 10, 20133 MILANO, Italy a DNA replication in cells cultured in vitro. Drosophila melanogaster (Diptera) b Biology of established cell lines. Drosophila spec. (Diptera) HALL, B. K. Ph.D. — Dept. of Biol., Dalhousie Univ., HALIFAX, N.S., Canada a The orgin of cartilage and bone from common germinal cells. Gallus domesticus (Aves) b Control of organ size, especially the adrenal gland. Gallus domesticus (Aves) c Ontogeny of the pituitary-adrenal axis. Gallus domesticus (Aves) HAMA, T. D.Sc, Prof. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, Japan • HAMBURGER, K. Cand.mag. — Biol. Inst, Carlsberg Found., 16 Tagensvej, DK 2200 COPENHAGEN N, Denmark a Respiratory metabolism during early development (gradient diver technique). Rana oxyrrhinus, R. platyrrhinus (Anura) HAMBURGER, V. Ph.D., Prof.(Emer.) — Dept. of Biol., Washington Univ., Skinker and Lindell Ave., ST. LOUIS, Mo. 63130, U.S.A. • a Neuro-embryology. Gallus domesticus (Aves) b Embryology of behavior. Gallus domesticus (Aves), Rattus domesticus (Rodentia) HAMBURGH, M. Prof. — Dept. of Biol., City Coll., Univ. of New York, Convent Ave. and 139th St., NEW YORK, N.Y. 10031, U.S.A. — Dept. of Anat, Albert Einstein Coll. of Med., Eastchester Rd. 6 Morris Park Ave., NEW YORK, Bronx, N.Y. 10461, U.S.A. HAMILTON, H. L. Ph.D., Prof. — Dept. of Biol., Univ. of Virginia, Gilmer Hall, CHAR- LOTTESVILLE, Va. 22903, U.S.A. • a Organogenesis. Gallus domesticus (Aves) HAMILTON, Miss L. Ph.D. — Dept. of Biol, as Appl. to Med., Middlesex Hosp. Med. Sch., LONDON W1P 6DB, England a Haploid syndrome. Xenopus spp. (Anura) b Radiation sensitivity of haploid and diploid embryos. Xenopus laevis (Anura) c Haploid and diploid tissues (electron microscopy). Same species as b (with H. FOX, Dept. of Zool.) HAMILTON, T. H. Ph.D., Prof. — Dept. of Zool., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. HAMILTON, W. J. Prof. — Dept. of Anat., Charing Cross Hosp. Med. Sch., 62 Chandos Place, LONDON W.C.2, England • HAMMERLING, J. Dr.phil., Prof. — Max-Planck-Inst. fur Zellbiol., Abt Schweiger, Anton Dohrn-Weg, Postfach 1009, 294 WILHELMSHAVEN, W.Germany • a Nucleo-cytoplasmic relationships. Acetabularia spec, and other spp. (Algae) HAMMOND, W. S. Ph.D. Prof. — Dept. of Anat., Upstate Med. Centre, State Univ. of New York, 766 Irving Ave., SYRACUSE, N.Y. 13210, U.S.A. • a Hypophyseal development in the embryo. Gallus domesticus (Aves) HAMNER, Ch. E. D.V.M., Ph.D. — Dept of Obstet. and Gynecol., Div. of Reprod. Biol., Univ. of Virginia Med. School, Box 179, CHARLOTTESVILLE, Va. 22903. U.S.A. a The composition of oviduct secretions of ovariectomized females with and without estrogen and progesterone injections and the effects of these secretions on sperm metabolism, fertilizing ability and blastocyst development. Oryctolagus cuniculus (Lagomorpha) b The role of steroids in capacitation of sperm in the female reproductive tract. (Mammalia) c Reproductive physiology; artificial insemination technique, sperm characterization, seminal plasma constituents, in vitro fertilization. Felis catus (Carnivora) HANAOKA, Y. M.Sc. — Dept. of Comp. Endocrinol., Inst of Endocrinol.. Gunma Univ., Showa-machi, MAEBASHI, Japan a Endocrinology of metamorphosis. Xenopus laevis, Rana japonica (Anura) b Action of hormones on oogenesis and ovulation. Xenopus laevis, Rana japonica (Anura) HANCOCK, J. L. Ph.D., Prof. — Dept. of Anat., Royal Vet. Coll., LONDON NW1 0TU, England a Intergeneric hybrids. Capra hircus x Ovis aries (Artiodactyla) b Fertilization (experimental studies). Sus scrofa, Ovis aries (Artiodactyla) 73 c Developmental pathology of hybrid placenta. Capra hircus x Ovis aries (Artiodactyla) d Immunological aspects of foetal-maternal relationships exemplified by hybrid gestation. Capra hircus x Ovis aries (Artiodactyla) (with P. T. McGOVERN) HANCOCK, R. L. M.D., Prof. — Div. of Med. Biochem., Fac. of Med., Univ. of Calgary, CALGARY 44, Alta., Canada a Methylation of tRNA in liver development. Rattus norvegicus (Rodentia) HANKE, W. Dr., Prof. — Zool. Inst, der Univ., Siesmayerstr. 70, 6000 FRANKFURT a.M., W.Germany a Influence of hormones on skin. Rana temporaria (Anuca), Mus musculus (Rodentia) b Effects of adrenocortical hormones. Anguilla anguilla (Teleostei), Amby stoma spec. (Urodela) , Rana temporaria, Xenopus laevis (Anura) c Development of endocrine tissue. Amby stoma spec. (Urodela), Xenopus laevis (Anura) HANOCQ, Miss F. A. Lic.Sci.Zool. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67 rue des Chevaux, 1640 RHODE-ST-GENESE, Belgium a Nucleic acid metabolism (chiefly DNA) during maturation of oocytes (autoradiography, biochemistry). (Amphibia) b Characterization of oocyte DNA ("vitelline" DNA). (Amphibia) HANOCQ (QUERTIER), Mrs. J. A. Dr.en Sci.Biol. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67 rue des Chevaux, 1640 RHODE-ST-GENESE, Belgium • a Studies on DNA synthesis during oogenesis. (Amphibia) b Localization of cytoplasmic DNA during embryonic development. (Amphibia) HANSBOROUGH, L. A. Ph.D., Prof. — Dept. of Anim. Genet., Storrs Agric. Exper. Station, Univ. of Connecticut, STORRS, Conn. 06268, U.S.A. a Differentiation of transplanted mouse limb-buds in the 3-day chick embryo and the immune responses of the host. Gallus domesticus (Aves), Mus musculus (Rodentia) HANSEN-DELKESKAMP, Mrs. E. Dr. — Zool. Inst, der Univ., Physiol. Lehrstuhl, Berliner- str. 15, 6900 HEIDELBERG, W.Germany a Metabolism of eggs and embryos. Gryllus domesticus (Octhoptera) HANSON, E. D. Ph.D., Prof. — Dept. of Biol., Wesleyan Univ., MIDDLETOWN, Conn. 06457, U.S.A. a Developmental genetics of oral structures (techniques: UV microbeam, nucleic acid anti- metabolites) . Paramecium aurelia, P. trichium (Ciliata) HANSSON MILD, K. Fil.lic. — Dept. of Zoophysiol., Univ. of Umea. S 901 87 UMEA, Sweden a Permeation, diffusion of water and osmoregulation. Rana spp. (Anura) b Cortical tension. Rana spp. (Anura) HANSSON, L. E. M.Sci. — Sect, of Ecol. Zool., Dept. of Biol., Univ. of Umea, 90187 UMEA, Sweden a Development of the olfactory organ. Salmo tvutta (Teleostei) HANZELY, L. Ph.D. — Dept. of Biol. Sci., Northern Illinois Univ., DeKALB, 111. 60115, U.S.A. a Development of the digitonin-induced cell wall system in dividing meristematic root tip cells (electron microscopy). Allium sativum (Liliaceae) b Effects of morphactins on vegetative growth and propagation (electron microscopy). Bryophyllum daigremontianum (Crassulaceae) HARA, K. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Universiteits- centrum "De Uithof", UTRECHT, Netherlands a Temporal aspects in the process of neural induction by the young head process. Gallus domesticus (Aves) b Cinematography of cleavage pattern and gastrulation movement. Ambystoma mexicanum (Urodela), Xenopus laevis (Anura) (with E. C. BOTERENBROOD) c The origin of the dorso-ventral polarity of the egg (microcinematography) . (Amphibia) (with P. D. NIEUWKOOP) HARPER, M. J. K. Ph.D. — Worcester Found, for Exper. Biol., 222 Maple Ave., SHREWS- BURY, Mass. 01545, U.S.A. a Ovum transport through the reproductive tract. Oryctolagus cuniculus (Lagomorpha), Rattus rattus (Rodentia) b Ovum development and implantation. Mesocricetus auratus, Rattus rattus (Rodentia), Oryctolagus cuniculus (Lagomorpha) c Effects of chemical compounds on pregnancy. Oryctolagus cuniculus (Lagomorpha), Rattus rattus, Mus musculus, Mesocricetus auratus (Rodentia) d Fertilization. Oryctolagus cuniculus (Lagomorpha) HARREBOMEE, Mrs. A. E. Med.drs. — Div. of Exper. Morphol., Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., Netherlands a Regeneration blastemata induced in heterotopic positions and their development. Ambystoma mexicanum (Urodela) b Differentiation and de-differentiation during regeneration. Same species as a HARRIS, J. W. S. Ph.D. — Dept. of Anat, Royal Free Hosp. Med. School, 8 Hunter St., LONDON WC1N IBP, England • 74 a Morphogenesis of nose and palate. Mus musculus, Rattus spec, Mesocricetus auratus (Rodentia), Homo sapiens (Primates) b Effect of trophoblast on uteroplacental blood vessels. Mesocricetus auratus (Rodentia), Homo sapiens (Primates) HARRIS. M. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY, Calif 94720 U.S.A. a Somatic cell hybridization: mechanisms of cell fusion and phenotypic expression of characters in hybrids. Mesocricetus auratus (Rodentia) HARRIS (FELDMAN), Mrs. P. J. Ph.D., Prof. — Dept. of Zool., Oregon State Univ CORVALLIS, Ore. 97331, U.S.A. a Localization of "maternal" messenger RNA in eggs; isolation of "heavy bodies" and characterization of their RNA (biochemistry, electron microscopy). Strong ylocentrotus purpuratus (Echinoidea) b Centriole replication and separation, using mercaptoethanol to induce direct divisions from one to four cells (electron microscopy). Strong ylocentrotus purpuratus, Dendraster ex- centricus (Echinoidea) HARRISON, J. R. Ph.D., Prof. — Dept. of Zool., State Univ. Coll., OSWEGO, N.Y. 13126 U.S.A. a I n v i t r o studies on the growth and differentiation of the retinal pigment in the embryonic eye: analysis of developmental factors contained in the yolk-albumen of the egg. Gallus domesticus (Aves) b Uptake of glucose by early primitive streak to early somite embryos (isotope techniques). Same species as a HARRISON, R. G. D.M., Prof. — Dept. of Anat, Univ. of Liverpool, P.O.Box 147, LIVER- POOL L69 3BX, England a Factors influencing the process of spermatogenesis. (Mammalia) HARRISON, R. J. M.D., D.Sc, Prof. — Anat. School, Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3DY, England a Reproduction, gonads, placenta, endocrine organs. Phoca spec, Lobodon spec. (Pinnipedia) , Tursiops spec, Delphinus spec. (Cetacea) HARTE. Miss C. Dr., Prof. — Inst, fur Entw.physiol., Univ. zu Koln, Gyrhofstr. 17, 5 KOLN 41, W.Germany a Interactions between genes and environment in controlling morphogenesis of leaves. Antirrhinum majus (Scrophulariaceae) b Growth of callus, and differentiation in tissue cultures of different mutants. Oenothera hooked (Onagraceae), Antirrhinum majus (Scrophulariaceae) HARTFREE, E. F. Dr. — A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. Station, 307 Huntingdon Rd., CAMBRIDGE CB3 OJQ, England a Biochemistry of spermatozoa. (Mammalia) HARTH, M. S. Ph.D. — Div. of Research, North Carolina Dept. of Mental Health, Dorothea Dix Hosp., Box 7532, RALEIGH, N.C. 27611, U.S.A. a Descriptive comparative analysis of embryonic behavioral development in altricial and precocial species. Columba liuia, Gallus gallus (Aves) b Brain development and behavioral function correlation in the embryo. Columba liuia (Aves) HARTMAN, W. — Vet. Anat. and Embryol. Inst., Univ. of Utrecht, Bekkerstr. 141, UTRECHT, Netherlands a Derivatives of the sphincter cloacae. Capra hircus (Artiodactyla) HARTMANN, R. Dr.rer.nat. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W. Germany a Light and electron microscopy of spermatheca development in connection with endocrine ablations. Gomphocerus rufus, Syrbula [uscovittata (Acridinae, Orthoptera) HARTWIG, H. Dr.phil., Doz. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W. Germany a Wirkungsmechanismus von Schilddriisenhormonen (Amphibia) b Epithelcysten (Amphibia) c Geweihbildung. Capreolus capreolus (Artiodactyla) HASEGAWA, M. D.Sc, Prof. — Lab. of Biol., Women's Coll. of Tokai-Gakuen, Tenpaku- cho, Shyowa-ku, NAGOYA, Japan a Restitution of the eye. (Teleostei; Amphibia) b Morphogenesis of the retinal pigment cell. Same species as a HASEK, M. M.D. — Dept. of Exper. Biol, and Genet., Inst, of Biol., Czechosl. Acad, of Sci., Flemmingovo nam. 2, PRAHA 6, Czechoslovakia • HASELKORN, R. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637. U.S.A. HASHIMOTO, K. M.D., Prof. — Dept. of Med., Div. of Dermatol, Univ. of Tennessee, Vet. Adm. Hosp., 1030 Jefferson Ave., MEMPHIS, Tenn. 38104, U.S.A. a Embryogenesis of cutaneous fine structures. Homo sapiens (Primates) HASHIMOTO. K. D.Sc. — Biol. Lab., Kozu High School. Tennoji-ku. OSAKA. Japan a Relationships between encystment and morphogenesis. (Colpodidae, Ciliata) HATAE. T. Dr.med. — Dept. of Anat., Fac of Med., Kyushu Univ., FUKUOKA, 812 Japan 75 HATIER (AUTELIN), Mrs. R. Lic.es Sci. — Lab. de Biol. Med., Univ. de Nancy I, 30 rue Lionnois, 54 NANCY, France a infrastructure du developpement de la glande surrenale. Gallus domesticus (Aves) b Ultrastructure du cortex de l'oeuf. Triturus spec. (Urodela) HAUENSCHILD, C. Dr.rer.nat, Prof. — Zool. Inst, der Techn. Univ. Pockelsstr. 10a, 3300 BRAUNSCHWEIG, W.Germany a Reproduction, sex differentiation, endocrinology and periodicity. Platynereis, Ophcyotrocha and other spp. (Polychaeta) HAUSER, R. F. Ph.D. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8, CH-3012 BERN, Switzerland a The role of the subcommissural organ in normal development and regeneration of axial structures. Xenopus laevis (Anura) b I n v i t r o culture of larval tissues. Xenopus laevis (Anura) HAY, Miss E. D. M.D., Prof. — . Dept. of Anat., Harvard Med. School, 25 Shattuck St., BOSTON, Mass. 02115, U.S.A. • a Regeneration cells, and localization of RNA turnover (electron microscopic autoradio- graphy). Planaria spec. (Turbellaria) , Triturus viridescens (Urodela) b Fine structure of the developing cornea, and localization and identification of proteins secreted by the epithelium (autoradiography and chromatography). Gallus domesticus (Aves) c Ribosomal and glycogen configurations in oocytes and embryos (electron histochemistry). Xenopus spec. (Anura) d Secretion of collagen by neural tube and other embryonic epithelia; its role in tissue interaction. Same species as b HAY, Miss M. F. Ph.D. — A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. Station, 307 Huntingdon Rd., CAMBRIDGE CB3 0JQ, England a Relationship between embryo and corpus luteum. Ovis aries (Artiodactyla) HAY, R. J. Ph.D. — Dept. of Biol. Sci., Wright State Univ., Col.Glenn Highway, DAYTON, Ohio 45431, U.S. A. a Tissue regression in development and ageing; diploid cell degeneration in vitro. Gallus gallus (Aves). Mus musculus, Cricetulus gciseus (Rodentia) , Homo sapiens (Primates) HAYASHI, Y. Ph.D., Prof. — Inst, of Zool., Tokyo Kyoiku Univ., Otsuka 3-29-1, Bunkyo- ku, TOKYO, Japan • a Epithelio-mesenchymal interactions in beak formation. Gallus domesticus (Aves) b Biochemistry and immunochemistry of muscle differentiation. Rana nigromaculata (Anura), Gallus domesticus (Aves) (with T. HIRABAYASHI) c Cytochemical studies on primary induction. Triturus pyrrhogaster (Urodela) HAYASHI, Y. M.D. — Research Inst, of Environm. Med., Nagoya Univ., Furo-cho, Chikusa-ku, NAGOYA, 464 Japan a Electron microscopy of experimentally induced malformations of the central nervous system. Mus musculus, Rattus norvegicus (Rodentia) b Development of the vascular system in the central nervous system. Mus musculus, Rattus norvegicus (Rodentia) c Morphogenesis of malformations in the auditory system induced by excess vitamin A given to the mother. Mus musculus (Rodentia) HAYNES, J. F. Ph.D. — Dept. of Zool., Univ. of Maine, ORONO, Me. 04473, U.S.A. HEARSON, L. L. Ph.D., Prof. — Dept. of Biol., Wabash Coll., CRAWFORDSVILLE, Ind. 47933, U.S.A. a Proliferation, DNA synthesis and nerve fiber patterns in forelimb blastemata. Ambystoma mexicanum (Urodela) b Cytochemistry of dedifferentiation and redifferentiation in denervated limbs. Ambystoma maculatum, A. opacum (Urodela) c Investigation of proliferation patterns in aneurogenic forelimb blastemata. Ambystoma maculatum, A. opacum (Urodela) HEATH. H. D Ph.D., Prof. — Dept. of Biol. Sci., Calif. State Coll., HAYWARD, Calif. 94542, U.S.A. HEAYSMAN (WAKELING), Mrs. J. E. M. Ph.D. — Dept. of Zool. and Comp. Anat., Univ. Coll. London, Gower St., LONDON WC1E 6BT. England a Cell relations in tissue culture. Gallus gallus (Aves), Mus musculus (Rodentia) (with M. ABERCROMBIE and S. M. PEGRUM) HEBY, O. — . Zoophysiol. Inst., Univ. of Lund, Helgonavagen 3, 223 62 LUND, Sweden HEERSCHE, J. N. M. Dr. — Lab. for Cell Biol, and Histol., State Univ., Rijnsburgerweg 10, LEIDEN, Netherlands a Fluctuation in cyclic 3'5'AMP levels in embryonic bone after prolonged exposure to parathyroid hormone (radioimmunoassay). Rattus spec, Mus musculus (Rodentia) b Hormonal regulation of calcium transport in the shell gland. Gallus domesticus, Coturnix coturnix japonica (Aves) HEIM, W. G. Ph.D., Prof. — Dept. of Biol., The Colorado Coll., COLORADO SPRINGS, Colo. 80903, U.S.A. • a Serum proteins during ontogeny. Gallus domesticus (Aves), Rattus rattus (Rodentia) 76 b Alpha-2 macroglobulin during development, regeneration and various physiological states. Rattus rattus (Rodentia) HEIN, Miss R. R. Ph.D., Prof. — Biol. Dept., Upsala College, Prospect St., EAST ORANGE, N.J. 07019, U.S.A. a Effect of chemical agents (usually metals) on development and possible correlation with the effect of selected enzyme systems present in developing and regenerating tissues. Dugesia dorotocephala (Tucbellaria), ( Echinodermata) HEIZMANN, P. Dr.Ing. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 1918, 69 VILLEURBANNE, France a Metabolisme des acides nucleiques. Euglena gracilis (Euglenophyceae) HELFENBEIN, L. L. B.Sc. — Dept. of Biol., Kharkov State Univ., Dzerjinsky Square 4, KHARKOV, U.S.S.R. a Investigations on the history of embryology, (particularly Invertebrata) HELMSING, P. J. Dr. — Zool. Lab., Dept. of Cell Biol., Univ. of Nijmegen, Driehuizerweg 200, NIJMEGEN, Netherlands a Changes in nuclear protein patterns related with gene activation. Drosophila spec. (Diptera) HEMING, B. S. Ph.D. — Dept. of Entomol., Univ. of Alberta, EDMONTON, Alta., Canada a Metamorphosis. Frankliniella fusca, Haplothrips verbasci and other spp. (Thysanoptera) b Parthenogenesis. Various spp. (Thysanoptera) HEMMINGS, W. A. D.Sc. — Dept. of Zool., Univ. Coll. of North Wales, BANGOR, Caern., Wales, U.K. • HENDELBERG, J. Fil.Dr. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Spermiogenesis. (Platyhelminthes) HENDRICKX, A. G. Ph.D. — ■ Div. of Biol. Growth and Developm., Southwest Found, for Res. and Educ, P.O.Box 28147, SAN ANTONIO, Tex. 78228, U.S.A. HENLEY, Miss C. Ph.D. — Dept. of Zool., Univ. of North Carolina, CHAPEL HILL, N.C. 27515, U.S.A. HENNEN, Miss S. Ph.D. — Dept. of Biol., Marquette Univ., 530 N. 15th St., MIL- WAUKEE, Wis. 53233, U.S.A. • a Nucleo-cytoplasmic interactions in development. (Amphibia) HENNIG, W. Dr.rer.nat. — Max-Planck Inst, fur Biol., Abt. Beermann, Spemannstr. 34, 74 TUBINGEN, W.Germany HERBERT, C. F. Ph.D. — Dept. of Biol. Sci., Portsmouth Polytechnic, Park Rd., PORTS- MOUTH, England a Development of the supraorbital glands. Pygoscelis adeliae (Aves) b H3-thymidine studies of the developing neural crest. Xenopus laevis (Anura) c Electron microscopy of the developing pituitary and median eminence in larvae. Same species as b HERLANT (MEEWIS), Mrs. H. Dr.en Sci.Zool., Prof. — Lab. de Biol. Anim. et Histol. Comp., Univ. Libre de Bruxelles, Av. F.-D. Roosevelt 50, 1050 BRUXELLES, Belgium HERMAN, L. Ph.D., Prof. — Dept. of Pathol., Downstate Med. Center, State Univ. of New York, 450 Clarkson Ave., NEW YORK, Brooklyn, N.Y. 11203, U.S.A. a Electron microscopy of normal and urethane induced changes in embryonic neural tube cells and lung tissue cells. Mus musculus (Rodentia) HERNANDEZ de BARRIOS, Mrs. C. E. M.D. — Cat. de Embriol., Fac. de Med., Univ. de Los Andes, MfiRIDA, Venezuela a Histochemistry of the developing placenta. (Artiodactyla) , Homo sapiens (Primates) HERNANDEZ (VERDUN), Mrs. D. F. Dr.3e Cycle — Inst. Natl, de la Sante et de la Rech. Med., Unite de Physiol, placent., Hop. Saint-Antoine, 184 rue du Faubourg Saint- Antoine, 75 PARIS Xlle, France HEROLD, R. C. Ph.D., Prof. — Dept. of Histol. and Embryol., School of Dental Med., Univ. of Pennsylvania, 40th and Spruce Sts., PHILADELPHIA, Pa. 19104, U.S.A. a Relation of dentinogenesis and dermal bone formation. Squalus acanthias (Selachii; Teleostei) , Amby stoma spec. (Urodela) b Development of embryonic fine structure, mitochondria, and cell membrane; effect of chemical treatments. Echinarachnius parma (Echinoidea) c Comparative development and ultrastructure of dentines (osteodentine and vasodentine). Esox lucius, Gadus callarias (Teleostei) d Development of embryonic skeletal structure; normal ultrastructure and effect of sodium fluoride. Same species as b HERRMANN, H. M.D., Prof. — Biol. Sci. Group, Genet, and Cell Biol. Sect., Univ. of Connecticut, STORRS, Conn. 06268, U.S.A. • a Protein synthesis in muscle of developing embryo. Gallus domesticus (Aves) HESS, O. Dr.rer.nat., Prof. — Inst, fur Allgem. Biol., Univ. Diisseldorf, Mettmanner Str. 16-18, 4000 DUSSELDORF, W.Germany • a Experimental embryology. (Mollusca) b Gene physiology, Y chromosome. Drosophila spp. (Diptera) c Genetic regulation of differentiation; male germ line cells. Drosophila spp. (Diptera) 77 HEWITT, W. M.B., B.S. — Dept. of Anat, St. Thomas's Hosp. Med. School, LONDON S.E.I, England a Development of the brain. Homo sapiens and other spp. (Mammalia) HEYN, A. N. J. Prof. — Dept. of Biol. Sci., Louisiana State Univ., Lake Front, NEW ORLEANS, La. 70122, U.S.A. a Egg shell formation and structure. Gallus domesticus (Aves) b Ultrastructure of cell wall in relation to development. Avena sativa (Gramineae) c Action of plant growth hormones. HIBBARD, E. Ph.D., Prof. — Dept. of Biol., Coll. of Sci., Pennsylvania State Univ., 208 Life Sciences I, UNIVERSITY PARK, Pa. 16802, U.S.A. a Effects of polarity on differentiation of sensory structures and outgrowth of nerve fibres. Xenopus laevis and other spp. (Amphibia) HICKEY, Miss E. D. Ph.D. — Dept. of Anim. Genet., Storrs Agric. Exper. Station, Univ. of Connecticut, STORRS, Conn. 06268, U.S.A. a Effects of protein starvation on subcellular RNA and protein degradation in regions of the explanted early embryo. Gallus spec. (Aves) (with N. W. KLEIN) b Role of acid hydrolases in the regional specificity of macromolecular breakdown in explanted early embryos under protein starvation. Same species as a (with N. W. KLEIN) HIDIROGLOU, M. D.V.M. — Anim. Research Inst., Central Experiment Farm, OTTAWA, Ont, Canada a Phytyl chain of tocopherol transfer from mother to fetus. Ovis aries (Artiodactyla) HILD, W. J. M.D., Prof. — Dept. of Anat., Med. Branch, Univ. of Texas, GALVESTON, Tex. 77550, U.S.A. a In vitro development of retinal explants; differentiation of sensory cells and synaptic complexes. Rattus norvegicus (Rodentia), Felis domestica (Camivora) HILFER, S. R. Ph.D., Prof. — Dept. of Biol., Temple Univ., Broad & Berks St., PHILA- DELPHIA, Pa. 19122, U.S.A. • HINDMAN, J. L. Ph.D., Prof. — Program in Gener. Biol., Washington State Univ., PULL- MAN, Wash. 99163, U.S.A. a Factors affecting formation of callus from floral apices and the subsequent differentiation of the callus tissue into organized buds. Nicotiana tabacum (Solanaceae), Aquilegia spec. (Ranunculaceae) HINDS, J. W. Ph.D. — Dept. of Anat., Boston Univ., 80 E.Concord St., BOSTON, Mass. 02118, U.S.A. a Golgi impregnation and electron microscopic study of neurogenesis and gliogenesis in the olfactory bulb. Mus musculus (Rodentia) b Early neurogenesis in spinal cord and cerebral cortex (electron microscopy, Golgi impregnation) . Mus musculus (Rodentia) HINRICHSEN, K. Dr.med., Prof. — Inst, fur Anat. der Ruhr-Univ. Bochum, Postfach 2148, 463 BOCHUM, W.Germany a Thymus and lymphatic system, cell regeneration and migration. Mus musculus (Rodentia) b Morphogenesis of epitheliogenic organs. Mus musculus (Rodentia), Homo sapiens (Primates) HINSCH, Miss G. W. Ph.D., Prof. — Inst, of Molec. Evol., Univ. of Miami, 521 Anastasia Ave., CORAL GABLES, Fla. 33134, U.S.A. • HIRABAYASHI, T. Ph.D. — Inst, of Zool., Tokyo Kyoiku Univ., Otsuka 3-29-1, Bunkyo-ku, TOKYO, Japan a Immunochemistry of muscle differentiation. Rana nigromaculata (Anura), Gallus domesticus (Aves) HIRADHAR, P. M.Sc. — Dept. of Zool., Fac. of Sci., M.S. Univ. of Baroda, BARODA-2, India a Tail regeneration in the adult. Hemidactylus flaviviridis (Lacertilia) HIRAMOTO, Y. D.Sc, Prof. — Misaki Marine Biol. Station, Univ. of Tokyo, MISAK1 Kanagawa-ken, Japan • a Cell division. (Echinoidea) b Physical properties of eggs. (Echinoidea) c Physiology of fertilization. (Echinoidea) HIRN, M. Dipl.d'Etud.Approf. — Lab. de Morphogenet. Anim., Centre Saint Charles, Univ. de Provence, Place Victor Hugo, 13 MARSEILLE 3e, France a Regeneration. Cercyra hastata (Turbellaria) HOADLEY, L. Ph.D., Prof.(Emer.) — Biol. Labs., Harvard Univ., 16 Divinity Ave., CAMBRIDGE, Mass. 02138, U.S.A. • HOAR, R. M. Ph.D. — Teratol. Sect., Dept. of Exper. Pathol, and Toxicol., Research Div., Hoffman-La Roche Inc., NUTLEY, N.J. 07110, U.S.A. a The relationship between hyperadrenal conditions and birth defects, in particular placental endocrine activity and the adrenal activity of embryos exposed to maternal hyper- adrenocorticalism. Cavia porcellus (Rodentia) b The relationship between hypoadrenal conditions and birth defects, in particular functional defects of the central nervous system of fetuses exposed to maternal hypoadrenocorticalism. Cavia porcellus (Rodentia) 78 HOAR All, F. Dr.spec. — Lab. de Morphogenet. Anim., Centre Saint Charles, Univ. de Provence, Place Victor Hugo, 13 MARSEILLE 3e, France a Analyse des territoires de regeneration. Helleria brevicornis (Isopoda, Crustacea) HOBBS, M. J. Ph.D. _ Dept. of Anat. and Embryol., Univ. Coll. London Gower St LONDON WC IE 6BT, England ' a Differentiation in colonial forms. Pleodorina spp. (Volvocales, Chlorophyceae) HODGETTS, R. B. Ph.D. — Dept. of Genet., Univ. of Alberta, EDMONTON 7, Alta., Canada a Cytology and histochemistry of oogenesis in females bearing sex-limited mutant genes which affect normal egg production. Drosophila melanogaster (Dipteca) b The role of cytoplasmic differentiation in the determination of the early cleavage nuclei. Drosophila melanogaster (Diptera) c Correlation between puffing patterns and specific enzyme induction in the epidermal cells. Sarcophaga bullata (Diptera) HOFMAN, Miss Lj. D.Sc. — Inst, of Biol., Univ. of Zagreb, Salata 3, 41001 ZAGREB, Yugoslavia a Regulation of compensatory growth. Rattus norvegicus (Rodentia) HOFMANN, D. K. Dr.rer.nat. — Inst, fur Entw. physiol., Univ. zu Koln, Gyrhofstr. 17. 5 KOLN 41, W.Germany a Experimental studies on the endocrine control of caudal regeneration. Platynereis dumerilii (Polychaeta) b Neurosecretory phenomena in the central nervous system of specimens of different sexual development stage. Eunice viridis (Polychaeta) c General and experimental investigations on reproduction and development. Eunice siciliensis (Polychaeta) HOGLUND, L. R. Fil. kand. — Dept. of Zoophysiol., Univ. of Umea, S 901 87 UMEA, Sweden a Polysaccharide metabolism, especially glycoproteins and mucopolysaccharides. Rana spp. (Anuva) HOHL, H. R. Dr.sc.nat., Prof. — Cytol. Lab., Inst, of Gen. Bot, Univ. of Zurich, Birchstr. 95, 8050 ZURICH, Switzerland a Submicroscopic morphogenesis. Dictyostelium discoideum and other spp. (Acrasiales), Phytophthora parasitica and other spp. (Phycomycetes) HOLAK, H. Dept. of Gen. Biol., Silesian Acad, of Med., K.Marksa 19, Rokitnica, ZABRZE 8, Poland HOLLAND, J. J. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Action of viruses on development. (Mammalia) b Translational factors in cellular differentiation. (Mammalia) HOLLINSHEAD, Mrs. M. B. Ph.D., Prof. — Dept. of Anat, Coll. of Med. and Dent., 100 Bergen St., NEWARK, N.J. 07103, U.S.A. a Embryology of grey lethals showing osteopetrosis and eruption failure of molars (light and electron microscopy) . Mus musculus (Rodentia) b Embryonic development of skeletal muscle (electron microscopy) . Homo sapiens (Primates) HOLLYFIELD, J. G. Ph.D. — Dept. of Ophthalmol.. Coll. of Phys. and Surg., Columbia Univ., 630W. 168th St., NEW YORK, N.Y. 10032, U.S.A. a Retinal changes at metamorphosis. Rana pipiens, Xenopus laevis (Anura) b Growth of the visual system. Xenopus laevis (Anura) c Retinal differentiation and histogenesis. Fundulus heteroclitus (Teleostei) HOLM, K. A. Fil.Dr. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Experimental investigation of the embryo (determination, prospective significance of embryonic areas). (Araneae, Arachnoidea) HOLMBAKKEN, N. -^ Anat. Inst., Univ. of Bergen, Arstadvollen 19, 5000 BERGEN, Norway a Odontogenesis. Gadus callarias, Esox lucius (Teleostei) HOLOWINSKY, A. W. Ph.D., Prof. — Div. of Biol, and Med. Sci., Brown Univ., PRO- VIDENCE, R.I. 02912, U.S.A. a Early events in light induced chloroplast development: membrane biogenesis and structural protein synthesis. Euglena gracilis (Euglenophyceae) b Biogenesis of chloroplast membranes. Phaseolus vulgaris (Papilionaceae) HOLSTEIN, A.-F. Dr.med. — Anat. Inst, der Univ. Hamburg, Martinistr. 52, 2-HAMBURG 20, W.Germany a Histologische und Elektronenmikroskopische Untersuchungen zur Entwicklung der ablei- tenden Samenwege. Homo sapiens (Primates) b Fluoreszenzmikroskopische Untersuchungen der Spermatozoen. Oryctolagus cuniculus (Lagomorpha) c Entwicklung des Hodens. Homo sapiens (Primates) 79 HOLT (SULEY), Mrs. A. C. E. Ph.D. — Dept. of Zool., Reading Univ., Whiteknights Park, READING RG6 2AJ, England a Developmental genetics, especially of variegated phenotypes. Mesocricetus auratus (Rodentia) HOLT, Th. K. H. Drs. — Zool. Lab., Dept. of Cell Biol., Univ. of Nijmegen, Driehuizerweg 200, NIJMEGEN, Netherlands a Structural changes in chromosome loci following gene activation. Drosophila spec, Chironomus spec. (Diptera) HOLTER, H. Ph.D. — Physiol. Dept, Carlsberg Lab., 10 Gl.Carlsbergvej, 2500 COPEN- HAGEN, Valby, Dennmark • HOLTFRETER, J. K. F. Ph.D., Prof. — Dept. of Biol., Univ. of Rochester, ROCHESTER, N.Y. 14627, U.S.A. • a Cell physiology: amoeboid motility and locomotion; protoplasmic streaming; cellular fusion and fission; membrane formation; food preferences; digestive enzymes; phago-pinocytosis; cytotaxis. Amoeba spec. (Rhizopoda), Physarum spec, Fuligo spec. (Eumycetozoina) HOMANN, H. A. Dr.rer.nat. — I. Physik. Inst., Univ. Gottingen, Bunsenstr. 9, 34 GOT- TINGEN, W.Germany a Eye development. Zora (Zoridae; Philodromidae, Araneida) HONJO, T. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Park- way, BALTIMORE, Md. 21210, U.S.A. a Regulation of nucleic acid synthesis in early development. Xenopus laevis (Anura) (with R. H. REEDER) HOPERSKAYA, Mrs. O. A. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Transfilter induction of lenses, neural and retinal tissues by eye rudiments in gastrula ectoderm and the dependence of their appearance of the duration of induction. Rana temporaria (Anura) b Inductive interactions of the cells of differentiating retina by means of combinations of cells of the eye rudiment and gastrula ectoderm. Rana temporaria (Anura), Gallus domesti- cus (Aves) (with G. V. LOPASHOV) c Conditions of the initiation of development and the positioning of axial rudiment in the early blastoderm. Leuciscus bergi (Cyprinidae), Epiplatys shaped (Cyprinidontidae, Teleostei) HOPPE, P. C. Ph.D. -, The Jackson Lab., BAR HARBOR, Me. 04609, U.S.A. a Studies on ova in vivo and in vitro, especially in vitro fertilization, energy requirements for first cleavage, and fusing ova with embryoid bodies and their subsequent fetal development. Mus musculus (Rodentia) HORAK, I. — Dept. of Embyol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. a Regulation of synthesis of nuclear and cytoplasmic mitochondrial nucleic acids during early development. Rana pipiens, Xenopus laevis (Anura) (with I. DAWID and G.-J. WU) HORI, R. D.Sc — Biol. Inst., Fac of Lit. and Sci., Toyama Univ., Gofuku 3190, TOYAMA, 930 Japan a Sodium and potassium content, ionic permeability, water soluble proteins, and fertilization phenomena (radioisotopes, thin-layer chromatography, electrophoresis). Hemicentrotus pulchercimus (Echinoidea), Oryzias latipes (Teleostei) HORNBLAD, P. Y. M.D. — Lab. of Teratol., Karolinska Inst., S-104 01 STOCKHOLM 60, Sweden a Experimental studies on closure of the ductus arteriosus and causes of its patency. Oryctolagus cuniculus (Lagomorpha), Mus musculus, Rattus norvegicus, Cavia porcellus (Rodentia), Sus domesticus, Ovis aries (Artiodactyla) HORNBY, Miss J. E. B.Sc — Dept. of Zool., Univ. of Reading, Whiteknights Park, READING RG6 2AJ, England a Adhesion of embryonic cells. Gallus domesticus (Aves) b Tissue interaction in differentiation of skin and hair. Mesocricetus auratus (Rodentia) HORSFALL, W. R. Ph.D., Prof. — Dept. of Entomol., Univ. of Illinois, 320 Morrill Hall, URBANA, 111. 61801, U.S.A. a Imaginal teratogenesis by thermal stress (morphological and histological changes; sensitive period). Aedes sierrensis, A. punctor, A. communis, A. stimulans, A. dianteus, A. cataphylla, A. excrucians, A. barri et al. (Culicidae, Diptera) HORSTADIUS, S. Fil.Dr., Prof.(Emer.) — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden • a Determination in the egg; analysis of the gradients and the processes behind them. (Echinoidea) b The effect of various antimetabolites on embryonic development. (Echinoidea) HORSTMANN, E. Dr.med. et phil., Prof. — Anat. Inst, der Univ. Hamburg, Martinistr. 52, 2000 HAMBURG-Eppendorf, W.Germany a Spermatozoen und ductus epididymidis. Oryctolagus cuniculus, Canis familiaris. Homo sapiens (Mammalia) 80 b Electron microscopy of spermatozoa and spermatogenesis. Ornithodorus moubata (Argasi- dae, Acacina), Geophilus linearis (Chilopoda). c Tissue culture of testis. Homo sapiens (Primates) HORTON, K. M. A.B. — Biol. Dept., Mount Holyoke Coll., SOUTH HADLEY, Mass. U1U/D, U..o./\. a Hormonal interactions and protein synthesis in mature oocytes. Xenopus laevis (Anwa) b Ultrastructure of oocytes, ova, and early embryos. Xenopus laevis (Anura), Ambystoma maculatum (Urodela) HORVATH, Miss C. M.D. — Inst, of Histol. and Embryol., Med Univ. Tuzolto u 58 BUDAPEST IX, Hungary °" a Teratogenesis. Gallus domesticus (Aves), Rattus rattus, Mus musculus, Mesocricetus auratus (Rodentia) b Effect of teratogens on chromosomes. Rattus rattus (Rodentia) HOSHINO, K. M.D., Dr.Med.Sc, Prof. — . Dept. of Anat., Univ. of Manitoba, 750 Bannatvne Ave., WINNIPEG 3, Man., Canada Y a Development and growth of mammary glands after prenatal exposure to hormones and carcinogen. Mus musculus (Rodentia) b Influences of hormones and carcinogen upon mammary growth of male and female immature animals. Same species as a c Regeneration of transplanted mammary and salivary glands. Same species as a HOSHINO, K. M.D. — Research Inst, of Environm. Med., Naqoya Univ., Furo-cho Chikusa-ku, NAGOYA, 464 Japan a Effects of some chemical substances upon the embryo. Mus musculus, Rattus norveaicus (Rodentia) (with Y. KAMEYAMA) b Morphogenesis of spina bifida and its allied conditions. Rattus norveaicus (Rodentia) (with U. MURAKAMI) ' c Morphogenesis of genetic microphthalmia. Mus musculus (Rodentia) (with Y. KA- MEYAMA) d Autoradiography of the generation cycle in the neural cells of the embryonic brain. Mus musculus (Rodentia) HOSTETLER, J. R. Ph.D. — Dept. of Anat., Ohio State Univ., 410 W. 10th Ave., COLUMBUS, Ohio 43210, U.S.A. a Effect of i n vivo administration of phytohemagglutinin on fetal hemopoietic organs (light and electron microscopy) . Oryctolagus cuniculus (Lagomorpha) b Light and electron microscopic histochemical analysis of supporting tissues in areas of hemopoiesis in embryos. (Aves; Mammalia) HOTTA, Y. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. • a Regulation of DNA synthesis during meiotic development. Trillium erectum, Lilium longiflorum, Tulipa gesneriana, Vicia faba, Bellevalia romana ( Angiospermae) HOUGH (RAYMOND), Mrs. B. Ph.D. — Div. of Biol., Calif. Inst, of Technol., PASA- DENA, Calif. 91109, U.S.A. a Molecular biology of oogenesis and early development, particularly gene activation. llyanassa obsoleta (Gastropoda), Strong ylocentrotus purpuratus (Echinoidea) , Engysto- mops pustulosus, Xenopus laevis (Anura) HOUILLON, Ch. Dr.es Sci., Prof. — Lab. de Biol. Anim. (2e sect.), Univ. de Paris, 12 rue Cuvier, 75 PARIS Ve, France • HOURDRY, J. — Lab. d'Anat. Comp., Fac. des Sci. d'Orsay, Batiment 441, 91 ORSAY, France HOUSSAINT, Miss E. — Lab. d'Embryol., Univ. de Nantes, 38 Bd. Michelet, B.P. 1044, 44 NANTES, France a Differentiation biochimique des hepatocytes. Gallus gallus (Aves) b Etude experimentale du developpement du foie. Gallus gallus (Aves), Mus musculus (Rodentia) HOUTHOFF, H. J. Med.Drs. — Dept. of Pathol., Univ. of Groningen, Oostersingel 93, GRONINGEN, Netherlands HOWELL, M. J. Ph.D. — , Dept. of Zool., Austr. Natl. Univ., P.O.Box 4, CANBERRA, A.C.T., 2600 Australia a Development of sporocysts in vitro. Philophthalmus burrili (Trematoda) b Development of metacercariae in vitro. Stictodora lari (Trematoda) HRABE, V. RNDr., CSc. — Dept. of Morphol., Inst, of Vertebr. Zool., Czechoslov. Acad. of Sci., Kvetna 8, BRNO, Czechoslovakia a Developmental morphology of male sex organs. (Microtidae; Muridae; Sciuridae; Gliridae, Rodentia) HROCH, M. Dr. — Dept. of Biol., Charles Univ., Simkova 870, HRADEC KRALOVfi, Czechoslovakia HSU (LIANG), Mrs. C. Y. Ph.D., Prof. — Dept. of Biomorphics, Natl. Defense Med. Center, P.O.Box 7432, TAIPEI 107, Taiwan, Republ. of China a Experimental sex reversal with high temperature. Rana spp. (Anura) 81 HUANG, Ru Chih C. Ph.D. — Dept. of Biol., Johns Hopkins Univ., Charles 6 34th St., BALTIMORE, Md. 21218, U.S.A. HUBBY, J. L. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637. U.S.A. HUBER, W. D.Sc, Prof. — Naturhist. Museum, Bernastr. 15, CH-3000 BERN, Switzerland a Biometrie des Schadels. Canis familiaris (Carnivora) , Capreolus capreolus, Rupicapra rupicapra (Artiodactyla) b Postembryonales Wachstum. Canis familiaris (Carnivora) c Geschlechtszyklus. Rupicapra rupicapra (Artiodactyla) d Fortpflanzung und Geschlechtszyklus. Sciurus vulgaris (Rodentia) e Fortpflanzung und Reproduktionsleistung. Lepus europaeus (Lagomorpha) HUBERT, J. Dr.es Sci. — Lab. de Biol. Anim., Univ. de Clermont, B.P. 45, 63 AUBIERE, France a Lignee germinale chez l'embryon, le jeune et l'adulte; etude descriptive et experimentale, ultrastructure. Lacerta vivipara, Anguis fragilis ( Lacertilia) , Vipera aspis (Ophidia) HUBSCHMAN, J. H. Ph.D., Prof. — Dept. of Biol. Sci., Div. of Sci. and Engin., Wright State Univ., Col.Glenn Highway, DAYTON, Ohio 45431, U.S.A. a Endocrine control of growth and development (metamorphosis) in larvae. Palaemonetes spp. (Decapoda, Crustacea) HUCKINS, Miss C. Ph.D. — Dept. of Anat., Tufts Univ., Boston, Mass., U.S.A. a The morphology of the spermatogonial population in growing animals as visualized on segments of seminiferous tubules mounted in t o t o. Rattus norvegicus (Rodentia) b The cell cycle times of the spermatogonial population in prepuberal animals using whole mount radioautography. Rattus norvegicus (Rodentia) HUET, C. — Lab. de Biol. Anim., Fac. des Sci., Univ. Paris Sud, 91 ORSAY, France a Developpement de l'appareil genital masculin et feminin de la larve. Tenebrio molitor (Coleopteta) HUET, M. Lab. de Biol. Anim., Fac. des Sci., Univ. Paris Sud, 91 ORSAY, France a Regeneration (influence des rayons X, du systeme nerveux). Asterina gibbosa (Asteroidea) HUGHES, A. F. W., Ph.D., Prof. — Dept. of Anat., Developm. Biol. Center, Western Reserve Univ., 2119 Abington Rd., CLEVELAND, Ohio 44106, U.S.A. a Development of spinal cord and ganglia. Didelphis virginiana (Marsupialia), Homo sapiens (Primates) HULTIN, J. M. T. Fil.Dr. — Wenner-Gren Inst., Norrtullsgatan 16, S-113 45 STOCK- HOLM, Sweden • a Protein and nucleic acid metabolism in early development. Actemia salina (Anostraca, Crustacea) , (Echinoidea) HUMEAU, C. Lab. d'Histol, Fac. de Med., 2 rue Ecole de Medecine, 34 MONTPELLIER, France HUMWSKI, S. Dr.hab. — Chair of Zool., Coll. of Agric, Cybulskiego 20, WROCLAW, Poland a Influence of food, light, temperature, and hormones on the male sexual apparatus during the resting period. Miccotus arvalis, M. agrestis (Microtidae, Rodentia), Apodemus agrarius, A. flavicollis, Mus musculus (Muridae, Rodentia) HUMMEL, Miss K. P. Ph.D. (Emer.) — The Jackson Lab., BAR HARBOR, Me. 04609, U.S.A. a Developmental anatomy and genetics. Mus musculus (Rodentia) HUMPHREY, R. R. Ph.D., Prof. (Emer.) — Dept. of Zool., Indiana Univ., BLOOMING- TON, Ind. 47401, U.S.A. • HUMPHREY, Miss T. M.D., Ph.D., Prof. — Dept. of Anat., Univ. of Alabama Med. Center, 1919 Seventh Ave. South, BIRMINGHAM, Ala. 35233, U.S.A. • HUMPHREYS, T. D. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. • a RNA and protein synthesis in embryos. Strong ylocentrotus purpuratus, Lythechinus pictus (Echinoidea) b Characterization of aggregation factor. Microciona prolifera, M. parthena, Haliclona occulata (Porifera) , teratoma cells, Mus musculus (Rodentia) c Relationship of cell contacts to growth control, as expressed in nucleic acid synthesis regulation, in embryonic skin fibroblasts. Gallus domesticus (Aves) HUMPHREYS, W. J. Ph.D., Prof. — Dept. of Zool., Div. of Biol. Sci., Univ. of Georgia, Barrow Hall, ATHENS, Ga. 30601, U.S.A. a Ultrastructure of blastomeres in mosaic eggs. Mytilus edulis (Lamellibranchia) b Desiccated cytoplasm of viable, encysted embryos is studied by transmission electron microscopy of thin sections, replicas of frozen-fractured preparations, and by scanning electron microscopy. Artemia salina (Anostraca, Crustacea) c Macromolecular structures in extracellular coats of unfertilized and fertilized eggs are compared by electron microscopy of replicas of frozen-etched preparations. Strongylo- centrotus purpuratus (Echinoidea) 82 HUMPHRIES, A. A., Jr. Ph.D., Prof. — Dept. of Biol., Emory Univ., ATLANTA, Ga. 30322, U.S.A. a Oogenesis and maturation. (Amphibia) b Chemistry and physiology of egg jelly. (Amphibia) c Ultrastructure of oocytes. (Amphibia) d Fertilization (Amphibia) HUNT, Miss D. M. A.B. — Worcester Found, for Exp. Biol., 222 Maple Ave., SHREWS- BURY, Mass. 01545, U.S.A. a Fertilization in vivo and in vitro, gonadogenesis, and irradiational effects on early embryonic stages (morphology and physiology). Oryctolagus cuniculus, Lepus americanus, Sylvilagus transitionalis (Lagomorpha), Cavia porcellus, Mus musculus, Rattus rattus, Mystromys albicaudatus, Mesocricetus auvatus (Rodentia), Mustela furio (Carni- voca) HUNT, E. L. Ph.D., D.Sc, Prof. — Dept. of Biol., Emory Univ., ATLANTA, Ga. 30322, U.S.A. a Estrus cycle and gestation in alloxan-diabetic animals. Rattus norvegicus (Rodentia) b Developmental pathology of the endocrine pancreas. Gallus domesticus (Aues) HUNTER, R. M. B.S. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada HUREAU, J. Prof. — Lab. d'Anat, Univ. Paris V - Rene Descartes, 45 rue des Saints Peres, 75 PARIS Vie, France a Organogenesis and morphogenesis of blood supply development in metanephros HURLIMANN, R. dipl.phil.il — Zool.-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, 8006 ZURICH, Switzerland HUSON, A. M.D. — Anat.-Embryol. Lab., State Univ. of Leiden, Wassenaarseweg 62, LEIDEN, Netherlands HUVER, C. W. Ph.D., Prof. — Dept. of Zool., Coll. of Biol. Sci., Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. HYODO (TAGUCHI), Mrs. Y. D.Sc. — Div. of Biol., Natl. Inst, of Radiol. Sci., 9-1, 4-chome, Anagawa, CHIBA, 280 Japan a Change in radiosensitivity of germ cells during embryonic development. Oryzias latipes (Teleostei) b Embryology of reproductive organs. Oryzias latipes (Teleostei) ICHIKAWA, M. f D.Sc, Prof. (Emer.) — Konan Univ., KOBE, Japan IFFT, J. D. Ph.D., Prof. — ■ Dept. of Anat., Boston Univ., 80 E.Concord St., BOSTON, Mass. 02118, U.S.A. a Autoradiographic studies of hypothalamus development. Rattus domesticus (Rodentia) IGNATJEVA, Mrs. G. M. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Relative duration of embryonic periods in connection with the morphogenetic function of nuclei and yolk. Misgurnus fossilis, Esox lucius, Carassius carassius and other spp. (Teleostei), Amby stoma mexicanum (Urodela) IKEDA, Miss M. Ph.D. — Embryol. Sect., Dept. of Biol., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa-machi, Setagaya-ku, TOKYO 158, Japan a UV-irradiation and SH radicals in eggs. Hemicentrotus pulcherrimus (Echinoidea) b Protein synthesis in synchronized cultures. Tetvahymena spec. (Holotricha, Ciliata) c Protein synthesis in eggs. Hemicentrotus pulcherrimus (Echinoidea) d Formation of microtubular structure in axoneme. Echinosphaerium nucleofilum (Heliozoa) IKONICOFF (KAPLAN), Mrs. L. Dr.en Med., Dr.3e Cycle — Lab. de Chim. Horm., Mater- nite de Port-Royal, 121 Bd. de Port-Royal, 75 PARIS XI Ve, France a Immuno-histochemical localization of HCG and A5-3j8-hydroxysteroid dehydrogenases in normal and pathological placentas. Homo sapiens (Primates) b Histochemistry of placental ions (x-ray micro-analysis, optic and electron microscopy). Same species as a IKUSHIMA, N. D.Sc. — Biol. Lab., Kansai Med. School, HIRAKATA, Osaka Pref., Japan a Aggregation pattern of cells of early embryos. Triturus pyrrhogaster (Urodela) ILIES, A. Dr.Biol.Sci. — Lab. de Embriol. Norm, sj Parol., Acad, de Stiin|e Med., Centr. de Cere. Med., Bui. M. Viteazul 24, TIMI§OARA, Rumania a Normal and pathological necrotic areas in embryonic development. Homo sapiens (Primates) b Normal and pathological development of the embryo. Homo sapiens (Primates) IMAHORI, K. D.Sc, Prof. — Dept. of Biol., Coll. of Gen. Educ, Osaka Univ., Toyonaka, OSAKA, 560 Japan a Morphogenesis, especially of sporelings. (Characeae) IMBERSKI, R. B. Ph.D. — Dept. of Zool., Univ. of Maryland, COLLEGE PARK, Md. 20742, U.S.A. a Stage-specific and tissue-specific occurrence of proteins during development. Drosophua spp. (Diptera), Ephestia kuhniella (Lepidoptera) b Regulation of gene expression during development. Drosophila spp. (Diptera), Ephestia kuhniella (Lepidoptera) 83 i Developmental enzymology Droaophlta spp (Dtptera), Tiphexfin kiilmiclhi (f.epidoptccn) [MMERS, I Fll.Di vVenner-Gren Inst, Nontullsgatan ir,, sili 45 STOCKHOLM, Sweden ,i Biochemical factor i hi embryonli and larval development, particularly tin- role of nun i »| .< .1 y laccharldci Paracentrotut llvldun ( l:< hint >ide/t) i> Changei In Interaction between protelni and nuclei* acids In f i k- course ol early develop* mi- ii I /' a !■ • nli ••hi I if flu .. I' ..mi me i 1 1 ii ii r. intli.it i\ ( I'.tltmt >t t ) Interaction ol animal vegetal morphogenei with retpeel to double gradleni concepl (I: hlnoldaa) INFANTE, a a Ph.D. I j.j.i ..I Biol., Wttleyan Univ., Mini^i.KTOWN, Conn 06457, ii '.a .i Control "I protein and inn lil' .ii nl -y mI lii •:.!-. during embryonic development (density gradient CCntrlfugatlon, In vivo ;ind In vitro protein ■ . / 1 1 1 1 1 • ■ . ) ■ . , elei Irophoreti, separations] Strongylocantrotut purpuratua, Lyiechtntu pictut (Bchinoidta) INGRAM, V. M Ph.D., D.Si . Prof. Dept. oi Biol., Massachusetts Inat. oi TechnoL, 77 Mass* i,n, >tts Ave., CAMBRIDGE, Maai. 021 19, U.S.A. ,i \'\i y 1 1 1 1 1 i|ioii--.i\ in embryos, particularly organ and call culture. (1/illus ilmni-Jntr. (Ai>es) i> Erythropoiesis during metamorphosis (In vivo, biochemistry, Immunology). Rana < flti hft.ilt.i ( Aunt ,i ) I N< >l II •'.. M B.Sc. Research Inst oi Environm. Med., Nagoya Univ., Furo-cho, Chikuse-ku, NAGOYA, 464 Japan ,i I'ci.il I > j .ii,, lesions caused l»y maternal administration "I monosodium glutamate and allied chemical substances Mvu muscultu (Rodent la) (with U. MURAKAMI) INOUE, S I'l, I* Lab. dc Biol Mol*i . Dept, de Biol., Univ. de Montreal, C.P. 6128, MONTREAL l.Que., Canada ,i Morpiioii ,ui< .ii .mil biochemical studies ol the fertilization membrane, treatment of the Isolated membrane with enzymes .,ni Female germ cells, Mtrtontt nut huh-:. (Rodentla) b Fine structure ol developing kidney. Marlona$ lib y cm (Rodtntla) IK-IK. R. M.S. Natl, in .i .of Am. ,i Industry, CHIBA-shl, 280 Japan .i l IV resistance ol transforming UNA iii germinating spores, Bacllltu tubtUU (Bacteria) b ( termination Induced < hanqe in the state ,>l I )NA in spores, Same species as a ISHIDA, I D.Sc, Prof, Dept. ol Biochem., Fa< . «»l Sd. and I-Lngin., Saitama Univ., Shimo- Okubo 255, IIPAWA City, fapan • isiiikawa, M. S.Sc. Marine Biol, Station, Nagoya Univ., Sugaehima, TOBA-thi, Mic- ken, 517 lapan • a Physiology ol fertilization and artificial parthenogenesis. Hi-miccritrotn.s f>tiUlicrrimns, Paeudocentrotui depreaatu (Behlnoldaa) (with M. SUGIYAMA) ISIIIKAWA, T. Dr. Vet. Med.. Prof. Depl. ol Vet. ()|.:;lel.. I'.ic. of Vel. Med., Hokkaido Univ., n 18, W 9, SAPPORi >, 060 fapan .i < lytogenesis oi congenital anomalies, Bos taurut (Artlodactyla) [SHIZAKI, II. D.Sc. Lab. de Developm. Biol., Zool. Inst., Fac. of Sd., Univ. of Kyoto, Kii.i'.im.ii cawa, Sakyo ku, KY< >T( >, fapan a Regulation ol ecdysone secretion by cultured prothoracic gland. Humhi/x tm>ri ([.cpuloptc- ta) b Mode oi action ol juvenile hormone on Incorporation of Female speclfii protein by ovaries in organ culture, Bomby mori (Ltptdoptera) i Purification <>i brain hormone. (Intacta) d I'l,, lion i , 1 1 < rosiopy ol the prothoracic glands, llombt/x mori. S.tmi.i Cynthia ricini. Papillo xiiihtts (Ltpidopttra) ISONO, N. Ph.D. . Embryol, Sect., Biol. Dept., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa tnachl, Setagaya ku, TOKYO 158, fapan a Ai id soluble nucleotides of eggs and sperm. Hemlctntrotus pulchcrrimus (Ilchinoidcn) b Effects ol chlorinated hydrocarbons and other Industrial products upon the embryonic development, Hemlcantrottu pulchtrrlmua, Anthocldarla craaataplna (Bchlnoldaa) [TO, R, M.S. Dept. ol An.it., FaC, Of Med., Tokyo Med. ,ind Dental Univ., 1-5-45, Yushima, Bunkyo ku, TOKYO, 11 I fapan a Mechanism <>i resorption <>i collagen Fibres la the metamorphosing tadpole tail. Rana cataabatana, R, japonica, Bufo vulgarU (Amtrn) IUCIF, S i'l, D D.-pt. de Morfol. Hum. Func. e Apllc, Univ. de Sao Paulo, C.P. 301, RIBEIRAO PRETO, S.P., Brazil IVANOFF, Miss A. Lab, d'Embryol., Univ, de Nancy I. ?l rue Lionnois, 54 NANCY. Prance 84 Apparition ri attribution des neurons et fibres aminergigue-; dans (hypothalamus au court de ]'<-iri\,r/r,'ri<-i, <■-.<■ < i.ilhr, rh,m<-:l i> ir. < Aves) IVANOVA (KA'iAS), Mr; O. M Dr.bioLscL, Prof Depl of Embryol Leduarad State Univ., M<-r,•/ St 'J. I.HNINOIMI ) V- 104. U.', ', P a Gomparative embryology, (fnvertebtata) b Asexual reprodiw Hon (InvcrU-brata) [VEMARK, B. f. M.D.. Prr.f. - Dept. of Pediat. Pathol., Kardinaka sjukhuvt 104 01 STOCKHOLM 00, Sweden ■ Anatomy and pathology of the placenta (mlcro-angiography) riomo tapitiu (Prim b Lipid histochemistry of die placenta in pathologic pregnane y. Same ipecA i as a c Fetal and neonatal immunity ai reflected in the thymoi and ipleen (immundhiorescence) S;ime species an a IVERSON, R. M. Ph.D. Prof. Depl of Biol Umv of Miami, CORAL GABLES Fla 33124, U.S.A. a Nucleic ,-jr id" during development, f.i/fcrfiiriu; vacierjultr; (li'ilnnuidi-a) b Development of the mitotk apparatus and protein synthesis in egg-; and embryos (flchinoidea) fWAMATSU. T. Ph.D, Biol Lab., AichUCyofka Umv. KARIYA-Clty, Aichi, lapao IWASA, K. D.Sc. — Dept of Biol., Goll of Gen Ed ca Univ., Toyonaka, OSAKA 560 Japan a Intercellular material of yelly-coat m growth and development (biochemistry, theology, cytology;. lJhae id a . (]',peprAa J IZZARD, C. S. Ph.D. — Dept. of Bid Sci.. State Univ. of New York, MOO Wi Ave.. ALBANY, N.Y. 12203, U.S.A. a Asexual reproduction, especially morphogenesis and infrastructure Botrylltl* schlossrri (A -.chdiacea) b Origin of germ cells, especially in asexual reproduction. Same species as a c Mobility in fibroblast-Bke cells and its role ..-.. 'hniques). XenopttS taevit (Anura), Gallus domestical (Aves) JAASKELAINEN (KARKINEN), Mrs. M. M.D. HI. Dee Pathol.. Univ. of Hebmka Haartmaoinkata 3. HELSI1 aland a Virus-induced cataract. Gallus gallus (Aves) (with I, O SAX fACOB, ff J. Dr.med. — Inst, fiir Anat. der Puhr-Univ. Bochum. P 2148. 403 f'/XdlUM, W.Germany a Development of notochord GaUtU domettictU (A b Diffe : of endoderm. Gallus domesticus (Aves) fACOB, J. Ph.D. — M.R.C Epigenef fye-. Group b ' Univ of Edinburgh, I Mains Rd.. EDINBURGH EH9 3JN, Scotland. U K a U." ' ;ral and functional aspects of nucleolus in larval gland eel patihenogenetica (Chironomidae, Diptera), and in developing oocytes. Xenoj ( Anura) b Ultrastructural changes and patterns of RNA as studied by E. M tgraphy. TrUotm alpestris (Urodela), Xenopus laevis (Amir.-,) c Synthesis and transformations of cellular membranes: nuclear membranes in Hela cells; endoplasmic reticulum in cement gland cells of embryo. Xenopus laevis (Anura) (with C. H. WADDINGTON and M. M. PERRY) d Nature of involvement of nucleolus in virus induced Lucke tumour cells. Rana pipiens (Anura) JACOB (LOES), Mrs. M. Dr.med. — Inst, fur Anat. der Ruhr-Univ. Bochum, Postfach 2148, 463 BOCHUM, W.Germany a Development of primitive streak and Hensen's node. Gallus domesticus (Aves) JACOBS, R. M. Ph.D., Prof. — Dept. of Oral Biol., Coll. of Dent., Univ. of Iowa, IOWA CITY, Iowa 52240, U.S.A. a Placental transmission of muscle relaxants and their teratogenic effects. Mus musculus (Rodentia) b Composition of glycosaminoglycans in embryonic palate: micro assay and effects of teratogenic agents. Mus musculus (Rodentia) JACOBS, W. P. Ph.D. — Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540, U.S.A. a Experimental developmental morphology, using controlled environment chambers, electronic computer processing of data, and studies of hormonal effects on organ and cell differentia- tion. Caulerpa prolifera (Siphonales, Algae), Coleus blumei (Labiatae), Xanthium pensylvanicum (Compositae) JACOBSON, A. G. Ph.D., Prof. — Dept. of Zool., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. • a Induction and positioning of the nose, lens, and ear. Taricha torosa (Urodela) b Factors controlling the segregation of the optic vesicle into pigmented retinal epithelium and sensory retina. Same species as a c Characterization of the endodermal substance that induces heart development. Same species as a d Experimental analysis and computer simulation of the shaping of the neural plate. Same species as a e Ultrastructural and experimental analysis of early development. Drosophila montana (Dip- tera) JACOBSON, D. C. O. Fil.Dr., Prof. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden • a Determination of the central nervous system. Ambystoma spec. (Urodela) b Experiments on fiber pattern formation in the medulla oblongata. Same species as a c The mechanism of neurulation. Ciona intestinalis (Ascidiacea), Ambystoma spec. (Uro- dela), Gallus domesticus (Aves) d Cytoplasmic control of DNA synthesis in neurons. Mus musculus ) Rodentia) JACOBSON, M. Ph.D. — Dept. of Biophys., The Johns Hopkins Univ., BALTIMORE, Md. 21218, U.S.A. JACOBSSON, A. Fil.lic. — Inst, of Zool., Univ. of Gothenburg, Fack, S-400 33 GOTHEN- BURG 33, Sweden a Ontogenesis of mesencephalic nuclei. Gallus domesticus (Aves) JACQUES, Miss S. Y. B.A. — Dept. of Zool., Coll. of Sci., Univ. of W.Ontario, LONDON, Ont, Canada JACQUOT, R. L. D.Sc, Prof. — Lab. de Physiol. Anim., Fac. des Sci., B.P. 347, 51 REIMS, France a Pre- and postnatal changes in glucose and glycogen metabolism of the liver cell; eventually assays on isolated cultured hepatocytes; electron microscopy. Rattus norvegicus (Roden- tia) (with C. PLAS) b Hemopoietic function of the foetal liver; factors controlling its progressive disappearance. Rattus norvegicus (Rodentia) (with J. NAGEL) c Endocrine function of the foetal pancreas; insulin blood levels in the foetus and in the mother. Rattus norvegicus (Rodentia) (with J. M. FELIX, B.C.J. SUTTER and Mrs. M. T. SUTTER) JAFFE, L. F. Ph.D., Prof. — Dept. of Biol. Sci., Purdue Univ., LAFAYETTE, Ind. 47907, U.S.A. • a Transcellular developmental currents and proton fluxes through developing cells (vibrating probe detecting nanovolt differences). Fucus furcatus, Pelvetia fastigiata (Phaeophyta) b Ionic changes during development (atomic absorption photometry, tracers, ion specific electrodes) . Same species as a JAGERSTEN, K. G. M. Fil.Dr., Prof.(Emer.) — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Larval development. (Pogonophora) b Comparative study of larval development. (Invertebrata) JALOUZOT, R. — Lab. de Biol. Cell., Fac. des Sci., B.P. 347, 51 REIMS, France a Nucleic acids and protein metabolism during initiation of adventitious roots. Cicer arietinum (P apilionaceae) b Stimulation of RNA synthesis and cellular activation. Same species as as JAMES, B. L. Ph.D. — Dept. of Zool., Univ. Coll. of Swansea, Singleton Park., SWANSEA, Glamorgan, Wales, U.K. 86 a Development of larvae and adults in vivo and in vitro. Microphallus pygmaeus, M. similis, Meigymnophallus minutus (Digenea, Trematoda) JAMES, D. A. D.Phil. — Dept. of Biol., Univ. of Saskatchewan, SASKATOON, Sask., Canada JAMES, D. W. B.S., Prof. — Dept. of Anat. and Embryol., Univ. Coll. London Gower St LONDON WC1E 6BT, England ' a In vitro studies of the central nervous system. Gallus domesticus (Aves) JANDIERI, Miss K. M. — Dept. of Biophys., Inst, of Exper. Morphol., Acad, of Sci of the Georgian SSR., 51 Kamo St., TBILISI 2, U.S.S.R. a Participation of nuclear and cytoplasmic substances in control of state of DNA in chromatin. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) JANS, D. E. Drs. — Muse. Dystrophy Res. Labs., Newcastle Gen. Hosp., NEWCASTLE upon Tyne NE4 6BE, England a Measurement of the total nucleolar material (by interference microscopy) and the nucleolar RNA (by scanning microdensitometry) in cultured normally differentiating myoblasts and in myoblasts cultured from dystrophic muscle. Gallus domesticus (Aves), Mus musculus (Rodentia), Homo sapiens (Primates) (with K. F. A. ROSS) JANSEN, J. M.D., Prof.(Emer.) — Anat. Inst., Univ. of Oslo, Karl Johansgate 47, OSLO 1, Norway • (no embryological work in progress) JANSSENS, P. A. Ph.D. — Dept. of Zool., School of Gen. Studies, Australian Nat. Univ., P.O.Box 4, CANBERRA, A.C.T. 2600, Australia a Development of enzyme systems specially those concerned in nitrogen metabolism. Xenopus laevis (Anura) JANTOSOVICOVA, Mrs. J. M.V.Dr. — Anat. Inst., Vet.-Med. Fak., Komenskeho 71, KOSICE, Czechoslovakia a Morphogenesis of the testis. Ovis aries (Artiodactyla) JANTZEN (WILKENS), Mrs. H. L. M. Dr. — Zool. Inst, der Univ., Berlinerstr. 15, 6900 HEIDELBERG, W.Germany a Ribonucleic acid populations of embryos during differentiation. Xenopus laevis (Anura) b Synthesis of new RNA populations needed for encystment. Acanthamoeba spec. (Rhizopo- da) JARSKAR, R. J. Dr. — Inst, of Zool., Univ. of Gothenburg, Fack, S-400 33 GOTHEN- BURG 33, Sweden a Electron microscopy of the development of the median eminence, neural lobe, and adenohypophysis (from 14-day embryo to adult). Mus musculus (Rodentia) (with L. EURENIUS) b Electron microscopy of the uptake mechanisms of monoamines and/or their precursors during different stages of the development of the median eminence. Mus musculus (Rodentia) (with L. EURENIUS) JAYLET, A. Lic.es Sci. —> Lab. de Biol. Gener., Univ. Paul-Sabatier, 118 Route de Nar- bonne, 31 TOULOUSE 04, France a Effets des rayons X sur la descendance d'animaux irradies; etude des anomalies chromosomiques; mode de transmission des chromosomes remanies; creation de lignes homozygotes pour des chromosomes marqueurs. Pleurodeles waltlii (Urodela) b Tetraploidie experimentale. (Urodela) JEL1NEK, R. MUDr., CSc. — Lab. of Plastic Surg.. Dept. of Exper. Teratol., Czechoslov. Acad, of Sci., Legerova 61, PRAHA 2, Czechoslovakia a Quantitative changes of tissue, cellular and subcellular structure in normal and pathological ontogenesis of the central nervous system. (Vertebrata) b Secondary development of axial structures (origin of neural tube and somites from the tail bud, localization of proliferation centers). Gallus domesticus (Aves) c Elaboration of an appropriate method for testing the teratogenic activity of drugs. Gallus domesticus (Aves), Rattus norvegicus, Mus musculus (Rodentia) JENKINSON, E. J. B.Sc. — Dept. Zool., Univ. Coll. of N. Wales, BANGOR, Caerns., Wales, U.K. a Experimental embryology and embryo culture in vitro. Mus musculus (Rodentia) JENSH, R. P. Ph.D. — Stein Research Center, Thomas Jefferson Univ., 920 Chancellor St., PHILADELPHIA, Pa. 19107, U.S.A. a Effect of combined injections of 2 different teratogenic antisera. Rattus norvegicus (Rodentia) b Effect and localization of trypan blue administered in the latter half of gestation; with or without teratogenic antisera. Rattus norvegicus (Rodentia) c Effects of x-irradiation on postnatal lifespan (leukemic effects). Mus musculus, Rattus norvegicus (Rodentia) --«« JINNEROT, D. P. A. Fil.mag. — Inst, of Zool., Univ. of Uppsala, Box 561, S-75122 UPP- SALA 1, Sweden a Ultrastructure of neural crest cells in different developmental stages. Ambystoma spec. (Urodela), Gallus domesticus (Aves) JIRSOVA, Miss Z. M.D. — Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4, PRAGUE 2, Czechoslovakia 87 a Egg transplantation (electron microscopic and cytochemical studies of egg transport and implantation in experimental conditions). (Mammalia) b Electron microscopy and cytochemistry of tubal epithelium differentiation. (Rodentia; Cacnivoca) , Homo sapiens (Primates) JIT, I. Ph.D., Prof. — Dept. of Anat., Postgrad. Inst, of Med. Educ. and Res., CHANDI- GARH-12, India a Ages of ossification of various bones in children and adults. Homo sapiens (Primates) b Structure and development of anal sphincters. Same species as a JOHANSSON, K. B. G. Fil. lie. — Wenner-Gren Inst., Norrtullsgatan 16, S-113 45 STOCK- HOLM, Sweden a Regulation of enzyme synthesis in cells in tissue culture. Homo sapiens (Primates) JOHN. H. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Biosynthesis of contractile proteins during myogenesis in vitro. Mus musculus, Rattus spec. (Rodentia), Homo sapiens (Primates) JOHNEN, Miss A. G. Dr.phil., Prof. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W.Germany • a Die Wirkungsspezifitat abnormer Induktoren in der Entwicklung. (Amphibia) b Die Bedeutung des Zeitfaktors beim Induktionsvorgang. Ambystoma spec, Triturus spec. (Ucodela) c Untersuchungen iiber die Kompetenzverhaltnisse beim Ektoderm. (Urodela) JOHNSON, D. R. Ph.D. — . Dept. of Anim. Genet., Univ. Coll. London, Wolfson House, 4 Stephenson Way, LONDON NW1 2HE, England a Electron microscopy of abnormal tissues, brain biochemistry and neuroendocrinology of animals carrying mutant genes. Mus musculus (Rodentia) JOHNSON, E. M. Ph.D., Prof. — Dept. of Human Morphol., Coll. of Med., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Effects of teratogenic agents on components of inductive-responsive systems in vitro. Gallus domesticus (Aves), Rattus spec. (Rodentia) b Nuclear-cytoplasmic interactions during synthesis of specific protein molecules. Acetabularia spec. (Chlorophyceae) c Ontogeny of isoenzymes in early embryos. Homo sapiens (Primates) JOHNSON, K. E. Ph.D. — Dept. of Anat., Duke Univ., DURHAM, N.C. 27706, U.S.A. a The role of changes in cell contact behavior and cell surface properties in gastrulation. Rana pipiens, Rana pipiens x R. catesbeiana and other hybrids (Anuca) b Timing of gene expression in early development (starch gel electrophoresis, enzyme polymorphisms, enzyme histochemistry). Xenopus laevis, Rana pipiens x R. sylvatica, R. pipiens x R. palustris (Anura) JOHNSTON, M. C. Ph.D. — Natl. Inst, of Dent. Research, N.I.H., BETHESDA, Md. 20014, U.S. A. a Normal development of craniofacial structures, emphasizing the contributions of neural crest and other primordia to the development of various facial components. Ambystoma maculatum (Urodela), Gallus domesticus (Aves), (Rodentia), Homo sapiens (Primates) b Abnormal embryonic development of the face with particular emphasis on cleft lip and palate: nature of the genetic predisposition; influence of environmental factors. (Rodentia), Homo sapiens (Primates) JOLLIE, M. T. Ph.D., Prof. — Dept. of Biol. Sci., Northern Illinois Univ., DeKALB, 111. 60115, U.S. A. a Development of the bony systems of the head. Amia spec, Lepisosteus spec (Holostei), Acipenser spec. (Chondrostei), Squalus spec. (Elasmobranchi) and other Vertebcata JONEJA, M. G. Ph.D., Prof. — Dept. of Anat., Queen's Univ., KINGSTON, Ont., Canada a Teratogenetic effects of mitotic inhibitors: podophyllia induces growth retardations only; vinblastine and vincristine induce a variety of malformations. Mus musculus (Rodentia) JONES (HOLT), Mrs. E. C. Ph.D. — Dept. of Anat, Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a The effect of maternal age on morphology and development of fertilized eggs. Mus musculus (Rodentia) JONES, G E. B.Sc — Dept. of Cell Biol., Univ. of Glasgow, GLASGOW W.2, Scotland, U.K. a Effect of dielectric constant on the adhesion of embryonic cells. Gallus gallus (Aves) JONES, K. W. Ph.D. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Location and function of reiterated DNA sequences in nuclei and chromosomes studied by in situ hybridization of complementary RNA. (Metazoa) b Ultrastructure, biochemistry, and differentiation of myogenic cells, especially processes of transcription and translation JONES, O. P. Ph.D., M.D., Prof. — Dept. of Anat., State Univ. of New York at Buffalo, 318 Capen Hall, BUFFALO. N.Y. 14214, U.S.A. a Embryonic blood cells in the yolk sac. Rattus spec. (Rodentia) b Electron microscopy of hepatic hematopoiesis. Rattus spec (Rodentia), Homo sapiens (Primates) 88 TONES, R. F. Ph.D. — Dept. of Biol. Sci., State Univ. of New York at Stony Brook, STONY BROOK, N.Y. 11790, U.S.A. a Physiology and biochemistry of development and differentiation during vegetative growth, asexual reproduction and gametogenesis. Chlamydomonas reinhacdtii (Volvocales, Chtoro- phyceae) b Control of vegetative and reproductive development. Marchantia polymorpha (Hepaticae) JONES, R. W. Ph.D., Prof. — Dept. of Zool., Oklahoma State Univ., STILLWATER, Okla. 74074, U.S.A. JONES, W. E. Ph.D. — Marine Sci. Labs., Univ. Coll. of N.Wales, MENAI BRIDGE, Anglesey, Wales, U.K. a Spore development. (Rhodophyta and other Algae) JONGH, H. J. de D.Sc. — Dept. of Anat. and Embryol., Univ. of Groningen, Oostersingel 69, GRONINGEN, Netherlands a Functional morphology of the head with special reference to larval life and metamorphosis. (Anura) b Allometric growth of the eye. Rana pipiens (Anura) c Development of the dentition. (Blenniidae, Teleostei) JONGKIND, J. F. Ph.D. — Netherl. Centr. Inst, for Brain Research, IJdijk 28, AMSTER- DAM-O., Netherlands a Energy utilization in cerebral hemispheres during embryonic development, using the techniques of Lowry c.s. Gallus domesticus (Aves) JONSSON, B. G. Fil.lic. — Zool Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a The effect of various drugs (a.o. thalidomide) on embryonic development. Amby stoma spec. (Urodela), Rattus spec. (Rodentia), Oryctolagus spec. (Lagomorpha) JOSEPH, J. D.Sc, M.D., Prof. — Dept. of Anat., Guy's Hosp. Med. School, LONDON S.E.I, England a Regeneration: 1. epithelium; 2. whole tickness of adult ear; 3. effects of steroids and drugs. Oryctolagus cuniculus (Lagomorpha) JOSEPHSEN, K. D.D.S. — Dept. of Anat., Royal Dent. Coll., Vennelyst Blvd., 8000 ARHUS C, Denmark a Morphological and histological development of maxillary incisors. Mus musculus (Rodentia) JOSHI, P. V. Ph.D. — Cell Research Lab., Dept. of Zool., N.Wadia Coll., POONA-1, India a Histochemistry of larva, pupa, and adult. Apis dorsata (Hymenoptera) JOST, A. D. D.Sc, M.D., Prof. — Lab. de Physiol. Comp., Univ. de Paris, 9 quai St.Ber- nard, 75 PARIS Ve. France • JUBERTHIE, C. J. -, Lab. Souterrain du C.N.R.S., 09 MOULIS, France a Ontogenesis of nervous system; ultrastructure. Cynorta cubana, Pachylus quinamavidensis (Phalangida, Arachnida) b Development. Cunocta cubana (Phalangida, Arachnida) JUBERTHIE (JUPEAU), Mrs. L. — Lab. de Souterrain du C.N.R.S., 09 MOULIS, France a Action de la temperature sur le developpement embryonnaire et postembryonnaire com- pare. Glomeris spec, Loboglomeris spec, Protoglomeris spec, Spelaeoglomeris spec. Glomeridella spec. (Diplopoda) b Biologie du developpement. Troglocharis spec. (Decapoda, Crustacea) JUNG E. Dr.rer.nat. — Zool. Inst, der Univ., Rontgenring 10, 87 WURZBURG, W.Germany a Experiments to determine the ooplasmic reaction system. Bruchidius (= Acanthoscelides) obtectus (Coleoptera) JURA, Cz. D.Sc. — Zool. Dept., Jagellonian Univ., ul.Krupnicza 50. KRAK6W, Poland a Early developmental stages. Tetrodontophora bielanensis (Collembola) b Role of cleavage cavity in embryogenesis (studies with UV micro-beam). Succinea putris (Gastropoda) JURAND, A. Ph.D. — Inst, of Anim. Genet., Univ. of Edinburgh. West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Developmental changes in the notochord. Mus musculus (Rodentia) b Formation of various cell organelles during the fission cycle. Paramecium aurelia (Ciltata) c Partial neoteny. Xenopus laevis (Anura) d Activity of cytochalasin B on cell fission. Same species as b JUSZCZYK, W. Dr. — Dept. of Zool., Wyzsza Szkoia Pedagogiczna, ul. Podbrzezie 3. KRAK6W. Poland _ , . , KACZANOWSKA (DOBRZAfiSKA). Mrs. J. Dr.es Sci. — Lab. of Protozool., Inst, of Zool., Warsaw Univ.. Krakowskie Przedmiescie 26/28, WARSZAWA. Poland a Effects of actinomycin D on divisional morphogenesis. Paramecium aurelia (Ciltata) b Effects of Ba++ and Ba++ + Ca++ on morphogenesis. Same species as a KACZANOWSKI, A. Dr.es Sci. — Lab. of Protozool.. Inst, of Zool., Warsaw Univ., Krakowskie Przedmies'cie 26/28. WARSZAWA 64, Poland a Morphology and hypothesis of growth of trophonts: 1. growth as a function ot synthesis of microtubular fibrils; 2. growth abnormalities. Opalina ranacum (Zoomastigina) b Experiments on life cycle and development: 1. in tadpoles under normal and abnormal conditions of temperature and nutrition; 2. cell differentiation and polyploidy. Upalina ranarum (Zoomastigina), host: Rana temporacia (Anura) KAHN, A. J. Ph.D., Prof. — Dept. of Anat., Washington Univ., 660 S. Euclid Ave., ST. LOUIS, Mo. 63110, U.S.A. KAIGHN, M. E. Ph.D. — Dept. of Virol., New York Blood Center, 310 E. 67th St., NEW YORK, N.Y. 10021, U.S.A. a Developmental changes in plasma protein synthesis in clonally-derived liver cells in vitro as revealed by radioimmunochemical techniques. Rattus rattus (Rodentia), Homo sapiens (Primates) KAITILA, I. — Lab. of Exper. Embryol., III. Dept. of Pathol., Univ. of Helsinki, Haart- maninkatu 3, HELSINKI 29, Finland a Drug-induced teratogenesis in vitro. Mus musculus (Rodentia) (with L. O. SAXEN and A. LAHTI) KAJI, S. D.Sc, Prof. — Dept. of Biol., Konan Univ., Okamoto, Motoyama-cho, Higashinada- ku, KOBE, Japan KAJII, T. M.D. — Lab. of Embryol. and Cytogenet., Univ. Clinic of Gynecol, and Obstet., Geneva Univ., 20 rue Alcide-Jentzer, 1211 GENEVE, Switzerland a Congenital malformations and cytogenetics. Homo sapiens (Primates) b Cytogenetics of aborted fetuses. Homo sapiens (Primates) KAJITA, A. M.D. — Dept. of Biochem., Nippon Med. School, 1-1-5 Sendagi, Bunkyo-ku, TOKYO, Japan a Genetic control of hemoglobin switch during metamorphosis. Rana catesbeiana (Anura) (with K. TORII and R. SHUKUYA) b Change of isozyme patterns during metamorphosis. Rana catesbeiana (Anura) (with R. SHUKUYA) KALLEN, A. J. B. M.D., Prof. — Tornblad-Inst. for Comp. Embryol, Biskopsgatan 7, S-223 62 LUND, Sweden • a Epidemiologic studies on teratology. Homo sapiens (Primates) KALLIO, P. Dr.Phil. — Dept. of Bot, Univ. of Turku, 20500 TURKU 50, Finland • a Changes of ultrastructure after denucleation. Micrasterias torreyi and other spp. (Desmi- diaceae) b The "after effect" of genetic information in denucleated cells. Micrasterias torreyi, M. thomasiana (Desmidiaceae) KALMAN, G. Ph.M. — Dept. of Anat., Univ.Med.School, Kossuth L.sgt. 40, SZEGED, Hungary a Development of the adrenergic inhibitory terminals in autonomic ganglia; fluorescence microscopy and electron microscopy. Rattus rattus (Rodentia) (with B. CSILLIK and E. KNYIHAR) KALTENBACH, Mrs. J. COUFFER Ph.D., Prof. — Dept. of Biol. Set, Clapp Lab., Mount Holyoke Coll., SOUTH HADLEY, Mass. 01075, U.S.A. a Local action of thyroxine on metamorphosis: histology and histochemistry. Rana pipiens (Anura) b Histochemistry of lysosomal enzymes in the metamorphosing tail. Same species as a KALTER, H. Ph.D., Prof. — Children's Hosp. Research Found., Div. of Teratol., Elland . and Bethesda Aves., CINCINNATI, Ohio 45229, U.S.A. a The relation between spontaneous cleft lip and parity, litter size, uterine position, fetal sex and weight, etc. Mus musculus (Rodentia) b The relation between teratogenesis and transplacental oncogenesis. Same species as a KALTHOFF, K. Dr.rer.nat. — Biol. Inst. I (Zool.) der Univ., Katharinenstr. 20, 78 FREI- BURG, W.Germany a Embryonic determination. Smittia spec. (Chironomidae, Diptera) KAMAR, G. A. R. Ph.D., Prof. — Anim. Prod. Dept., Fac. of Agric, Cairo Univ., GIZA, Egypt, U.A.R. a Factors influencing reproduction and production as far as the endocrines and gonads are concerned. (Aves) b Growth and factors affecting especially the endocrines. (Aves) c Factors influencing production and reproduction as far as the environmental conditions are concerned. (Aves) KAMAT, D. N. Ph.D. — Dept. of Zool., Shivaji Univ., Vidyanagar, KOLHAPUR-4, M.S., India KAMEYAMA, Y. M.D., D.Med.Sc. — Research Inst, of Environm. Med., Nagoya Univ., Furo-cho, Chikusa-ku, NAGOYA, 464 Japan a Effects of ionizing radiations upon the embryo. Mus musculus, Rattus norvegicus (Rodentia) b Effects of some chemical substances upon the embryo. Mus musculus, Rattus norvegicus (Rodentia) (with K. HOSHINO) c Mechanism responsible for malformations of the extremity in the embryo. Mus musculus, Rattus norvegicus (Rodentia) d Development of the vascular system in the central nervous system. Rattus norvegicus, Mus musculus (Rodentia) (with Y. HAYASHI) e Morphogenesis of genetic microphthalmia. Mus musculus (Rodentia) (with K. HOSHINO) 90 KANATANI, H. D.Sc, Prof. — Lab. of Physiol., Ocean Research Inst., Univ. of Tokvo Minamidai 1-15, Nakano-ku, TOKYO, 164 Japan •' a Mechanism of spawning. Asterias amurensis, Asterina pectinifera (Asteroidea) b Mode of action of 1-methyladenine on oocyte maturation. (Asteroidea) c Mechanism of oocyte maturation. Same species as a KANE, R. E. Ph.D., Prof. — Kewalo Lab., Pacific Biomed. Research Center, Univ of Hawaii, 2538 The Mall, HONOLULU, Hawaii 96822, U.S.A. a Role of cortical granules in formation of hyaline and fertilization membrane. (Echinoder- mata) b Mechanism of cell division, studied by means of the isolated mitotic apparatus. ( Echinodermata) KANKAVA, Mrs. B. Z. Cand.biol.sci. — Dept. of Anim. Embryol., Inst, of Zool., Acad, of Sci. of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. a Reactivity of embryonic testis to antigens. (Aves) KANKI, T. — Embryol. Sect., Dept. of Biol., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa-machi, Setagaya-ku, TOKYO, 158 Japan a RNA synthesis during cleavage. Hemicentrotus spec, Anthocidacis spec, Pseudocentrotus spec. (Echinoidea) KANOH, Y. D.Sc, Prof. — Akkeshi Marine Biol. Stat., Hokkaido Univ., AKKESHI, Hokkaido, Japan • KANTOROVA, Mrs. V. I. Cand.biol.sci. — Inst, of Developm. Biol.. Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Regeneration of cranium bones. Canis familiaris (Carnivora) KAPLAN, N. O. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Action of pyridine nucleotides in development and differentiation KAPLAN, S. Ph.D. — Dept. of Anat., Med. Coll. of Wisconsin, 561 N. 15th St., MIL- WAUKEE, Wis. 53233, U.S.A. a Investigations into the mechanisms underlying congenital malformations; bio-energetics of development and the influence of teratogens thereon. Gallus domesticus (Aves) KARASAKI, S. Ph.D., Prof. — Research Labs., Montreal Cane Inst., Notre-Dame Hosp., 1560 Sherbrooke E., MONTREAL 133, Que., Canada • a Yolk platelets. Xenopus laevis (Anura) b Ultrastructural aspects of cytodifferentiation in neoplastic development. Rattus ratfus (Rodentia) c Analysis of the physico-chemical properties of DNA in differentiating cells. Triturus viridescens (Urodela), Gallus domesticus (Aves), Mus musculus, Rattus rattus (Rodentia), Homo sapiens (Primates) (with S. P. MODAK) KARKOLA, K. M.D. — Dept. of Forensic Med., Univ. of Turku, Kiinamyllynkatu 10, 20520 TURKU 52, Finland a Enzyme histochemistry of liver wounds. Rattus spec. (Rodentia) KARLIN, Miss D. B.Sc — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSALEM, Israel a The ultrastructural changes which occur in blastoderm cells as they differentiate into either epi- or hypoblastic cells. Gallus domesticus (Aves) KARLSSON, B. Fil.Dr. — Zoophysiol. Inst., Univ. of Lund, Helgonavagen 3, 223 62 LUND, Sweden KASA, P. M.D. — Dept. of Anat., Univ. Med. School, Kossuth L.sgt. 40, SZEGED, Hungary a Developmental histochemistry of the archicerebellar cortex. Rattus rattus (Rodentia) (with B. CSILLIK) KASINSKY, H. E. Ph.D. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a Histone synthesis during cleavage. Xenopus laevis (Anura) b Patterns of basic ribosomal protein and histone synthesis during development. Drosophila melanogaster (Diptera) c Histone transition in spermiogenesis. Drosophila melanogaster (Diptera), Xenopus laevis (Anura) (with N.C. BOLS) KASPI (VISHNIVETSKI), Mrs. Th. M.S. — Dept. of Embryol. and Teratol., Tel-Has- homer Hosp., Tel- Aviv Univ., TEL-AVIV, Israel KASYANOV, V. L. Cand.biol.sci. — Inst, of Marine Biol., VLADIVOSTOK 22, U.S.S.R. a Promorphology of zygotes, (marine Invertebrata) b Reproductive cycles, (marine Invertebrata) KATAGIRI, Ch. D.Sc. — Zool. Inst., Fac of Sci., Hokkaido Univ., North 10, West 8, SAPPORO, 060 Japan a Fertilization and cleavage. Rana spec, Bufo spec. (Anura) b Characterization and development of hatching enzyme. Same species as a KATAKURA, Y. D.Sc. -^ Dept. of Biol., Keio Univ., YOKOHAMA-Hiyoshi, Japan a Development of the sex characters. Armadillidium vulgare (Isopoda, Crustacea) KATASHIMA, R. D.Sc. — Lab. of Amphib. Biol., Fac. of Sci., Hiroshima Univ., Higashisen- da-cho, HIROSHIMA, Japan a Breeding system. Euplotes spec. (Ciliata) 91 KATO, K.-I. Ph.D. — Dept. of Biol., Osaka Kyoiku Univ., Tennoji-ku, OSAKA, 543 Japan a Histochemical properties of developing embryos. Triturus pycrhogastec (Urodela), Xenopus laevis (Anura) b Strobilation. Aurelia aurita (Scyphozoa) KATO, M. B.S. — Dept. of Anat., Tokyo Med. and Dental Univ., 1-5-45, Yushima, Bunkyo- ku, TOKYO, 113 Japan a Experiments on lens regeneration. Triturus pyrrhogaster, Hynobius tokyoensis (Urodela) b Tissue culture studies on the development of the mammary gland. Rattus noruegicus. Homo sapiens (Mammalia) c Collagenogenesis. Rana japonica, Bufo vulgaris (Anura), Hynobius tokyoensis, Triturus pyrrhogaster (Urodela) d Hetero- and xenoplastic transplantation of tail. Rana japonica, Bufo vulgaris, Rhacophorus schlegelii (Anura) KATOH, A. K. Ph.D. — Div. of Radiotherapy, Oncology Lab., Mercy Hosp., 1400 Locust St., PITTSBURGH, Pa. 15219, U.S.A. a Differentiation of the embryonic lens in vitro. Gallus domesticus (Aves) KAUFFMAN, Miss S. M.D., Prof. — Dept. of Pathol., Downstate Med. Center, State Univ. of New York. 450 Clarkson Ave., NEW YORK, Brooklyn, N.Y. 1 1203, U.S.A. a The effects of urethane on embryogenesis of neural tube cells and lung cells. Mus musculus (Rodentia) b Lung development, and tumor induction in fetal lung. KAUFMAN, P. B. Ph.D., Prof. — Dept. of Botany, Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Ultrastructural development of stomata, cork-silica cell pairs, and trichomes. Avena sativa (Gramineae) b Electron microprobe analysis of silicification. Equisetum spec. (Equisetinae), Cyperus alternifolius (Cyperaceae; Gramineae) c Cellular differentiation during intercalary growth, especially regulation by hormones (GA3, kinetin, IAA). (Gramineae) d Regulation of invertase turnover by GA3 and kinetin; hormonal interactions in growth regulation; control points in carbohydrate metabolism regulated by GA3 and kinetin; rapid responses to hormone treatment (e.g. gibberellic acid). Avena sativa (Gramineae) KAUFMANN, B. P. Ph.D., Prof.(Emer.) — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Changing patterns of chromosome fine structure and function during development. Drosophila melanogaster and interspecific hybrids (Diptera) KAUFMANN, P. Dr.med. — Anat. Inst., Abt. fur Neuroanat., Univ. Krankenhaus Eppen- dorf, Martinistr. 52, 2 HAMBURG 20, W.Germany a Development and chemodifferentiation of the placenta (electron microscopy, enzyme histochemistry) . Homo sapiens (Primates) b Development and chemodifferentiation of the cortex cerebri (light microscopy, electron microscopy, enzyme histochemistry) . Mus musculus, Rattus norvegicus (Rodentia) KAWAKAMI, I. D.Sc, Prof. — Dept. of Biol., Fac. of Sci., Kyushu Univ., Hakozaki-cho, FUKUOKA, 812 Japan • a Lens fiber differentiation from lens epithelium in vitro. Gallus domesticus (Aves) b Primary induction: inductive capacity of lysozyme; cell division and induction. Triturus pyrrhogaster (Urodela) KAWAMURA, T. D.Sc, Prof. -. Lab. of Amphib. Biol., Fac. of Sci., Hiroshima Univ., Higashisenda-cho, HIROSHIMA, Japan a Hybridization between European and Japanese forms. (Ranidae, Anura) b Synthesis of amphidiploids. (Ranidae, Anura) c Synthesis of nucleo-cytoplasmic hybrids between different species. (Ranidae, Anura) KEATING, M. J. B.Sc, M.B. — Natl. Inst, for Med. Research, Mill Hill, LONDON N.W.7, England KECK, K. Prof. — Inst, of Biol. Sci., Univ. of Arizona, TUCSON, Ariz. 85721, U.S.A. • KEDES, L. H. Dr. — Dept. of Biol., Massachusetts Inst, of Technol.. CAMBRIDGE, Mass. 02139, U.S.A. • KEEFE. J. R. Ph.D. — Dept. of Anat., Med. School, Univ. of Virginia. CHARLOTTES- VILLE, Va. 22901, U.S.A. a Cytochemistry, tissue culture and ultrastructure of retinal development and regeneration. Triturus (Notophthalmus), viridescens, Triturus cristatus (Urodela), Gallus domesticus (Aves), (Rodentia) b The cell cycle and its relation to pigment epithelial differentiation in the retinal regener- ating system. Same species as a KELLEY, R. O. Ph.D. — Dept. of Anat., The Univ. of New Mexico, 915 Stanford Ave. N.E., ALBUQUERQUE, N.Mex. 87106, U.S.A. a Electron microscopy of induction systems. Xenopus laevis (Anura) b Electron microscopy of limb morphogenesis. (Mammalia) c Effect of dactinomycin and puromycin on chordamesoderm and presumptive neural ectoderm in vitro: nuclear and cytoplasmic alterations. Xenopus laevis (Anura) 92 KELLY, W. A. Ph.D. — Anat. Dept., Med. School, University Walk, BRISTOL BS8 1TD, England a Development of morulae in the presence of an intra-uterine device (I.U.D.). Rattus norvegicus (Rodentia) KELSO, A. F. Ph.D. — Dept. of Physiol, and Pharmacol., Chicago Coll. of OsteoDathv 1 122 E. 53rd St., CHICAGO, 111. 60615, U.S.A. wsteopatny, KEMP, N. E. Ph.D., Prof. — Dept. of Zool., Univ. of Michigan, ANN ARBOR Mich 48104, U.S.A. , a Electron microscopy of metamorphic changes in the skeleton. Rana pipiens (Anura) b Fine structure of fin rays in regenerating tailfins. Tilapia mossambica, Carassius auratus (Teleostei) c Differentiation of enamel in teeth. Carcharhinus menisocrah (Elasmobranchi) d Polymerization of collagen fibrils in connective tissues. (Elasmobranchi, Teleostei, Anura, Aves, Mammalia) KEMP, R. B. Ph.D. — Zool. Dept., Univ. Coll. of Wales, Penglais, ABERYSTWYTH SY23 3DA, Wales, U.K. a Role of actomyosins and glycoproteins in adhesiveness of embryonic cells. Gallus domesticus (Aves) b Interactions between cell types in morphogenesis. Halichondria panicea, Ophlitaspongia seriata (Porifera) KENNEDY, J. F. M.D. — . Dept. of Popul. Dynamics, Sch. of Hyg. and Publ. Health, and Dept. of Gynecol, and Obstet., Sch. of Med., Johns Hopkins Univ., 615 N. Wolfe St., BALTIMORE, Md. 21205, U.S.A. a Maturation and fertilization of oocytes. Mus musculus (Rodentia), Homo sapiens (Primates) b Perfusion of ovaries in vitro. Homo sapiens (Primates) c Composition of follicle and tubal secretions. Same species as b d Protein synthesis of oocytes. Same species as a KEPHART, Miss J. E. M.S. — Cell Res. Inst., B.L. 220, Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. KERNIS, M. M. Ph.D. — Dept. of Anat., Coll. of Med., Univ. of Illinois, 1853 W.Polk St., P.O.Box 6998 CHICAGO, 111. 60680, U.S.A. a Morphological and physiological effects of teratogens with particular emphasis on the effects of these agents on placental function (in vitro and in vivo uptake of isotopes by embryos, autoradiography, electron microscopy, histochemistry, measurements of electrical potential differences). Rattus norvegicus (Rodentia) b Chemical protection against drug-induced teratogenicity and its mechanism KERR, Miss M. S. Ph.D. — Dept. of Biol., Syracuse Univ., 130 College Place, SYRACUSE, N.Y. 13210, U.S.A. a Biochemistry of lipovitellins in oocytes and hemolymph. Callinectes sapidus (Decapoda, Crustacea) b Maturation of hemocytes and their biosynthetic capacities. (Decapoda, Crustacea) KERR, N. S. Ph.D., Prof. — Dept. of Zool., Coll. of Biol. Sci., Univ. of Minnesota, MIN- NEAPOLIS, Minn. 55455, U.S.A. a The morphogenesis of non-flagellated amoeba to flagellated amoeba, of amoeba to Plas- modia, and of plasmodia to fruiting bodies. Didymium nigripes (Eumycetozoina) b Developmental genetics. Same species as a KERSE (BUYUKOZER), Mrs. I. Dr., Prof. — Inst, of Histol. and Embryol., Hacettepe Sci. Center, Med. Fac, ANKARA, Turkey a Ultrastructure of fetal membranes. Homo sapiens (Primates) KESSEL, R. G. Ph.D., Prof. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA- City, Iowa 52240, U.S.A. a Analysis of variations in cell structure and function, especially developmental phenomena (gametogenesis) (electron microscopy, cytochemistry, radioautography, biochemistry, hydrostatic pressure). Various organisms KETCHEL, M. M. Ph.D., Prof. — Dept. of Physiol., School of Med., Tufts Univ. 136 Harrison Ave., BOSTON, Mass 02111, U.S.A. a Immunological relationship between mother and fetus. Rattus spec, Mus musculus (Roden- tia), Homo sapiens (Primates) b Immunological aspects of reproduction and pregnancy. Same species as a KEY, J. L. Ph.D., Prof. — Dept. of Botany, Univ. of Georgia, ATHENS, Ga. 30601. U.S.A. a Molecular studies on auxin regulation of RNA synthesis. Glycine max, Daucus carota, Zea mays, Hordeum vulgare, Pisum sativum (Angiospermae) KEYNAN, A. Dr. — Inst, of Life Sci., Hebrew Univ., JERUSALEM, Israel • KEYSER, A. J. M. Med.drs. — . Dept. of Anat. and Embryol., Univ. of Nijmegen, Geert Grooteplein N. 21, NIJMEGEN, Netherlands a Autoradiography of the development of the diencephalon and some basal telencephalic areas (limbic system, rhinencephalon) . Cricetulus barabensis griseus (Rodentia) KHALIL, S. H. M.Sc. — Dept. of Zool., Alexandria Univ., Moharram Bey, ALEXANDRIA. Egypt 93 KHAN, M.S. M.Sc. — Dept. of Zool.. Talim-Ul-Islam Coll., RABWAH, Distr. Jhangh, W.Pakistan a Development of nervous system and skin. Bufo melanost ictus (Anura) b Gastrulation and neurulation. Same species as a KHARE, M. K. D.Phil. — Dept. of Zool., Univ. of Gorakhpur, GORAKHPUR (LLP.). India KHARLOVA. Mrs. G. V. Cand.biol.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315. U.S.S.R. a Regeneration of thymus and spleen. Mus musculus, Rattus norvegicus (Rodentia) KIDDER. G. M. Ph.D. — Biol. Dept.. Reed College, PORTLAND, Ore. 97202. U.S.A. a Pattern and significance of embryonic RNA synthesis; genomic activity in embryo studied by molecular hybridisation. Mulinia lateralis (Mactridae, Lameliibranchia) b Development of the immune system (hemagglutinin tests). Xencpus laevis (Anura) c Genetic basis of enzyme regulation during development. Drosophila melanogaster (Diptera) KIDO. T. D.Sc, Prof. — Biol. Inst.. Fac. of Sci.. Univ. of Kanazawa, Marunouchi-1, KANAZAWA, Japan a Analysis of mechanism of pharynx-formation. Dugesia japonica (Turbellaria) b Reaggregation of dissociated cells. Callyspongia elongata (Porifera) c Cytological properties of neoblasts. Dugesia japonica (Turbellaria) d Cvtological properties of interstitial cells. Hydra vulgaris (Hydrozoa) KIEFER. B. I. Ph.D. — Dept. of Biol., Wesleyan Univ.. MIDDLETOWN, Conn. 06457, ItSJV. a Genetic control of differentiation and development of male germ cells (electron microscopy, electrophoresis, autoradiography, density gradient centrifugation) . Drosophila melano- gaster (Diptera) b Structure and function of the mitotic apparatus as compared to other motile systems (electron microscopy, density gradient centrifugation). Strong ylocentrotus purpuratus (Echinoidea) c Regulation of ribosomal RNA and ribosomal protein synthesis during development (density gradient centrifugation. electrophoresis, autoradiography). Drosophila melano- gaster (Diptera) KIEEBOWNA. Miss L. D.Sc. — Inst, of Zool.. Univ. of Wroclaw, ul. Sienkiewicza 21, WROCEAW 2, Poland a Mvogenesis. (Amphibia) KIENY. Mrs. M. A. SENGEL Dr.es Sci. — Lab. de Zool., Inst, de Rech. Biol.. Univ. Scient. et Med. de Grenoble. Cedex 53. 38 GRENOBLE. France • a Regulative mechanisms (competition) in the differentiation of the limb bud skeleton (autoradiography). Gallus domesticus (Aves) b Regional determination of pterylae and apteria. Same species as a c Role of the nervous system in limb morphogenesis. Same species as a d Regional capacities of somitic mesoderm. Same species as a KIERMAYER. O. Dr.phil.. Prof. — Inst, fur Entw.physiol., Univ. zu Koln, Gyrhofstr. 17, 5 KOLN 41. W.Germany a Experimental studies on the developmental pattern. Micrasterias denticulata (Desmidiaceae) b Comparative studies on the morphogenetic reaction of different varieties, treated with growth regulating substances. Lycopersicon esculentum (Solanaceae) c Electron microscopy on the problem of cytomorphogenesis. Micrasterias denticulata (Desmidiaceae) KILARSKI. W. Ph.D. — Dept. of Comp. Anat.. Jagiellonian Univ.. ul.Krupnicza 50, KRAKOW, Poland a Ultrastructure of volk. (Holostei) KILLE. J. W. M.Sc. — The Worcester Found, for Exper. Biol.. SHREWSBURY, Mass. 01545, U.S.A. a Necessity, function, biochemical characteristics and composition of the mucin coat in the preimplanted embryo. Oryctolagus cuniculus (Lagomorpha) b The effects of rabbit oviduct fluid on the development of preimplantation stages in vitro. Oryctolagus cuniculus (Lagomorpha), Mesocricetus auratus (Rodentia) and other Mam- malia KIMMEL. D. L. Ph.D.. Prof. — Dept. of Anat.. Med. Center. West Virginia Univ.. MORGANTOWN. W.Va. 26506. U.S.A. KIMMEL. D. L.. Jr. M.D.. Ph.D. — Div. of Biol, and Med. Sci.. Brown Univ.. PRO- VIDENCE, R.I. 02912. U.S.A. a Examination of time and tissue specificity of tryptophan oxygenase and formylase appearance during larval development. Drosophila melanogaster (Diptera) b Examination of factors regulating kynurenine deposition in larval fatbody granules. Drosophila melanogaster (Diptera) KIMURA. I. M.Sc. — Dept. of Biophys. and Biochem.. Univ. of Tokvo, 7-3-1 Hongo, Bunkyo-ku, TOKYO, 113 Japan a Comparative studies of microtubule proteins, immunologically and as substrates for the 94 thiol-disulfide exchange reaction. Anthocidaris ccassispina, Pseudocentrotus depressus, Hemicentrotus pulcherrimus (Echinoidea) KINCURASHVILI, Mrs. N. I. — Dept. of Anim. Embryol., Inst, of Zool.. Acad of Sci of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. a Comparative study of oogenesis in different breeds. Gallus domesticus (Aves) KINDAHL, Miss M. E. Ph.D. — Skeppargatan 51 III, 11458 STOCKHOLM, Sweden a The development of the teeth. (Insectivora) KING, Mrs. D. WEI Ph.D., Prof. — Dept. of Zool., Natl. Taiwan Univ., TAIPEI 107. Taiwan, Formosa a Congenital malformations due to maternal vitamin E deficiency: 1. morphology and histochemistry; 2. effects of hormones (progesteron, estrone, y-tocopherol) , antioxidants, and different diets; 3. tissue tocopherol levels. Rattus norvegicus (Rodentia) b Teratogenic effects of mitomycin, antihistaminic drugs and monosodium glutamate. Gallus domesticus (Aves) KING, P. E. Ph.D. — Dept. of Zool., Univ. Coll. of Swansea, Singleton Park, SWANSEA, Glamorgan, Wales, U.K. a Oogenesis and associated problems. (Insecta; Crustacea; Arachnida) b Oosorption and post-fertilization stages. Nasonia vitcipennis (Hymenoptera) c Parthenogenetical development. Nasonia vitripennis (Hymenoptera) KING, R. C. Ph.D., Prof. — . Dept. of Biol. Sci., Northwestern Univ., EVANSTON, 111. 60201, U.S.A. . a Formation and functioning of synaptonemal complex during meiotic prophase. Bombyx mod (Lepidoptera) b Genetic control of oogenesis. Drosophila melanogaster (Dipteca) KING, T. J. Ph.D., Prof. — Dept. of Biol., Georgetown Univ., 37th & O.St. N.W., WASHINGTON, D.C. 20007, U.S.A. • a Nuclear differentiation in embryos. Rana pipiens (Anuca) b Chromosome replication in nuclear transplant embryos. (Amphibia) KINOSHITA, S. Ph.D. — Zool. Inst., Univ. of Tokyo, Hongo 7-3, Bunkyo-ku, TOKYO, 113 Japan a Biochemical analysis of animal and vegetative gradients in the embryo. Pseudocentrotus depressus (Echinoidea) b Nucleo-cytoplasmic interactions and regulation of embryonic differentiation. Clypeaster japonicus (Echinoidea) KIORTSIS, V. Dr.es Sci., Prof. — Zool. Lab. and Museum, Univ. of Athens, Panepistimiopo- lis (Kouponia), ATHENS (621), Greece • KIRCHEN, R. V. M.S. — Dept. of Cytogenet. and Developm. Biol., Carolina Biol. Supply Co.. BURLINGTON, N.C. 27215, U.S.A. a Mitotic activity in early development. Oryzias latipes (Teleostei) KIRK, D. L. Ph.D. — Dept. of Biol., Washington Univ., ST.LOUIS, Mo. 63130, U.S.A. KIRSTEN, W. H. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637, U.S.A. KISCHER, C. WARD Ph.D., Prof. — Dept. of Anat.. Med. Branch, Univ. of Texas, GALVESTON, Tex. 77550, U.S.A. a Etiology and ultrastructure of the hypertrophic scar. Homo sapiens (Primates) b Biochemical ultrastructural studies on organogenesis c Ultrastructural and biochemical analyses of development of skin derivatives. Gallus domesticus (Aves), Mus musculus (Rodentia) d Effects of prostaglandins on developing skin and skin derivatives. Gallus domesticus (Aves), Mus musculus (Rodentia) KISHIDA, Y. D.Sc. — Biol. Inst., Fac. of Sci., Univ. of Kanazawa, Marunouchi-1, KANA- ZAWA, Japan a Depigmentation of eye after treatment with thiocarbamide and its derivatives. Dugesia japonica (Turbellaria) b Mechanisms of eye formation during regeneration. Dugesia japonica (Turbellaria) c Reaggregation of dissociated cells. Callyspongia elongata (Porifera) d Ultrastructure of neoblast. Dugesia japonica (Turbellaria) KISIMOTO, R. Dr.Agr. — Dept. of Plant Pathol, and Entomol., Kyushu Natl. Agric. Exper. Station, Nishi 496, Izumi, CHIKUGO-shi, Fukuoka-ken, 833 Japan a Wing polymorphism. Nilaparvata lugens, Laodelphax striatellus, Sogatella furcifera (Araeopidae, Homoptera) b Development of viruliferous and non-viruliferous forms of a plant virus vector. Laodelphax striatellus (Homoptera) c Geographical variation in diapause. Laodelphax striatellus (Homoptera) KISTLER, A. Lic.phil.nat. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern. Sahlistr. 8, CH-3012 BERN, Switzerland a Comparative biochemistry and ultrastructure of mitochondria in embryonic systems. Xenopus laevis (Anura) (with R. WEBER) KLAG. J. M.Sc. — Zool. Dept., Jagellonian Univ., ul.Krupnicza 50, KRAK6W, Poland a Differentiation of primary germ cells. Thetmobia domestica (Thysanura) 95 KLEIN, A. O. Ph.D., Prof. — Biol. Dept., Brandeis Univ., WALTHAM, Mass. 02154, U.S.A. • a Light regulated development. Chlamydomonas spec. (Chlorophyceae), Phaseolus vulgaris (Papilionaceae) KLEIN, H. W. Dr.med. — Afd. Anat. I, Med. Fac. Rotterdam, P.O.B. 1738, ROTTERDAM C 3002, Netherlands a Normal and experimental developmental morphology, including teratology of the coronary arteries (high frequency coagulation). Gallus domesticus (Aves), Homo sapiens (Primates) b Developmental morphology and teratology of the cardiovascular system. Homo sapiens (Primates) c Mechanical factors determining the shape of the lens. Gallus domesticus (Aves), Mus musculus (Rodentia) , Homo sapiens (Primates) KLEIN, N. W. Ph.D., Prof. — Dept. of Anim. Genet., Storrs Agric. Exper. Station, Univ. of Connecticut, STORRS, Conn. 06268, U.S.A. • a Protein metabolism and its relationship to growth and differentiation in the explanted embryo. Gallus spec. ( Aves) (with E. D. HICKEY) b Mechanisms of teratogenic specificity in the explanted embryo. Same species as a c Growth regulation in the early embryo (culture of embryos on a growth limiting medium; synthesis and break-down of macromolecules in specific regions of the embryo). Same species as a (with E. D. HICKEY) KLEIN, R. L. Ph.D., Prof. — Dept. of Pharmacol, and Toxicol., Med. Center, Univ. of Mississippi, 2500 North State St., JACKSON, Miss. 39216, U.S.A. a Electrolyte metabolism in developing embryonic heart (histochemistry and ultrastructure; atomic absorption spectrophotometry) . Gallus domesticus (Aves) KLEINEBRECHT, J. Dr.rer.nat. — Inst, fur Humangenet. und vergl. Erbpathol. der Univ., Paul-Ehrlich-Str. 41, 6 FRANKFURT/Main, W.Germany KLEINFELD, Mrs. R. G. Ph.D., Prof. — Dept. of Anat., Univ. of Hawaii, 1960 East-West Rd., HONOLULU, Hawaii 96822, U.S.A. a Hormonal effects on cell differentiation in the uterus. Rattus norvegicus (Rodentia) b Nucleoprotein metabolism and cellular fine structure changes during embryonic, regenerative and neoplastic growth. Same species as a KLEINLOGEL, H. Dipl.biol. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8, CH-3012 BERN, Switzerland a Effects of inhibitors of protein synthesis on metamorphosis. Xenopus laevis (Anura) (with R. WEBER) KLEINSMITH, L. J. Ph.D., Prof. — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Role of nuclear proteins in the regulation of gene expression. KLEISS, E. Dr.Med., Prof. — . Cat. de Embriol., Fac. de Med., Univ. de Los Andes, MERI- DA, Venezuela ■ — personal address: Apartado 38, MfiRIDA, Venezuela a Teratogenesis of developmental failure (especially of the limbs) and excess (digits, twins, double monsters etc.) in relation with teratological factors and the corresponding susceptibility. (Rodentia) , Homo sapiens (Primates) b History of embryology and teratology c Embryological and teratological nomenclature. Domestic animals, Homo sapiens (Mam- malia) d Classification of anomalies and malformations. Domestic animals, Homo sapiens (Mam- malia) e Development of the vascular supply to the human tongue, tonsils, and salivary glands (injected specimens). Homo sapiens (Primates) f Histo- and toxoplasmosis as teratogenic factors. Homo sapiens (Primates) (with L. DURAN de LOPEZ and members of the Dept. of Pathol.) KLIMA, M. Dr. — Dr. Senckenberg Anat. Inst., Ludwig-Rehn Str. 14, 6 FRANKFURT/ Main, W.Germany KMIEC, B. M.B. — Dept. of Histol. and Embryol., Acad, of Med., ul. Narutowicza 60, ECDz, Poland a Comparative histochemistry of the development of the adrenal medulla. Xenopus laevis, Rana esculenta (Anura), Rattus norvegicus, Cavia porcellus (Rodentia), Homo sapiens (Primates) KNESE, K.-H. Dr.med., Dr.phil., Prof. — Inst, fur Histol. und Embryol., Univ. Hohenheim (LH), Fruwirthstr. 16, 7000 STUTTGART 70, W.Germany a Histochemistry, enzymology, and electronmicroscopy of the early histogenesis of the connective and supporting tissue of the presumptive regions of different kinds of mesenchyme, especially of cartilage and bone, and those in lung and kidney. Gallus domesticus (Aves), Bos taurus (Artiodactyla), Rattus norvegicus, Mus musculus (Rodentia), Homo sapiens (Primates) b Morphology, enzymology, and electron microscopy of histogenesis, especially of cartilage and bone as well as metamorphosis after hormone application. Rattus norvegicus (Roden- tia), Bos taurus (Artiodactyla) c Developmental morphology of embryo. Bos taurus (Artiodactyla) 96 KNIGHT-JONES, E. W. D.Phil., Prof. — Dept. of Zool., Univ. Coll. of Swansea, Single- ton Park, SWANSEA, Glamorgan, Wales, U.K. a Larval settlement and metamorphosis. Spirorbis borealis and other genera (Secpulidae, Polychaeta) b Methods of spawning and incubating embryos. Same species as a KNIZETOVA (VEJP), F. Ph.D. — Dept. of Zool., Fac. of Sci., Univ. of Alberta ED- MONTON, Alta., Canada KNJAZEVA, Miss R. A. — Dept. of Embryol., Leningrad State Univ., Mendeleevskv St 5 LENINGRAD V-164, U.S.S.R. a Polyembryony (somatic embryogenesis) . Gallus domesticus. Anas plat y thy nchos, Me- leagris gallopavo (Aves) KNOX, W. E. M.D. — Dept. of Biol. Chem., Cane. Res. Inst., New England Deaconess Hosp., 185 Pilgrim Rd., BOSTON, Mass. 02215, U.S.A. KNUDSEN, P. A. M.D., D.D.S., Prof. — Dept. of Anat., Royal Dent. Coll., Vennelyst Blvd., 8000 ARHUS C, Denmark a Congenital malformations of jaws, oral cavity and nervous system induced by hyper- vitaminosis A and trypan blue. Mas musculus, Rattus norvegicus (Rodentia) b Malformations of the vascular system of brain and head. Mas musculus, Rattus norvegicus (Rodentia) (with J. BUGGE) KNYIHAR, Miss E. M.D. — Dept. of Anat., Univ. Med. School, Kossuth L.sgt. 40, SZEGED, Hungary a Development of the adrenergic inhibitory terminals in autonomic ganglia: fluorescence microscopy and electron microscopy. Rattus rattus (Rodentia) (with B. CSILLIK and G. KALMAN) b Developmental histochemistry and electron microscopy of the vegetative ground plexus. Rattus rattus (Rodentia) (with B. CSILLIK) KOBAYASHI, N. Ph.D. — Biol. Lab., Doshisha Univ., Kamikyo-ku, Karasuma Imadagawa, KYOTO, Japan a Reproductive physiology, especially histochemistry of oogenesis. (Echinoidea) KOBAYASI, H. Dr., Prof. — Biol. Lab., Japan Women's Univ., 2-8-1 Meiirodai, Bunkyo-ku, TOKYO, Japan a Cytology of gynogenetic development. Carassius auratus (Teleostei) KOCH, P. Ph.D. — Zool. Inst, der Univ., Ketzerbach 63, 355 MARBURG/Lahn, W.Germ- any a Separation and characterization of yolk proteins. Carausius morosus (Phasmida), Acheta domesticus (Orthoptera) b Comparison of egg and haemolymph proteins. Carausius morosus (Phasmida) c Developmental processes in embryonic tissues cultured in vitro. Same species as a KOCHAV, Sh. M.Sc. — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSALEM, Israel a The differentiation potencies of the blastoderm prior to laying. Gallus domesticus (Aves) KOCHER-BECKER, Mrs. U. Dr.rer.nat. — Heiligenberg Inst., 7799 HEILIGENBERG, Baden, W.Germany • a Determination of ectoderm in solutions of inducing substances. Tritucus alpestris (Urodela) b Effects and mechanisms of the mesodermal inducing factor. Tciturus alpestris, Ambystoma mexicanum (Urodela) KOCHER, W. Dr.phil. — Zool. Inst, der Univ., Rontgenring 10, 87 WORZBURG, W.Ger- many — Heiligenberg Inst., 7799 HEILIGENBERG, W.Germany ^ • a Patterns of effects of alkylating substances, (especially of triethylenemelamine, TEM) and their treatment-phase specificity during early development and organogenesis. Gallus domesticus (Aves) b Pattern formation in selection-lines of the Polydactyly mutant. Mas musculus (Rodentia) c Phenocopy of the gene effects of Polydactyly by means of TEM-treatment. Same species as b d Interactions between the gene Polydactyly and the teratogenic effects of TEM. Same species as b KOCHERT, G. Ph.D. — Dept. of Bot., Univ. of Georgia, ATHENS, Ga. 30601, U.S.A. KOCHVA, E. Ph.D., Prof. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL-AVIV, Israel a Development of glands; synthesis and transport of enzymes and other secretory products. (Ophidia, Reptilia) KOCK, J. M. de M.Sc. -* Zool. Inst., Fac. of Sci., Univ. of Stellenbosch, STELLENBOSCH, S.Africa a Ontogenesis of the chondrocranium. Melopsittacus undulatus (Psittaci, Aves) KOCOVA (PECHACKOVA), Mrs. J. Dr.Med. — Inst, of Histol. and Embryol., Charles Univ., Karlovarska 48, PLZEft, Czechoslovakia a The development of the venous system. Homo sapiens (Primates) KOECKE, H.-U. Ph.D., Prof. — Zool. Inst, der Univ., Ketzerbach 63, 355 MARBURG/ Lahn, W.Germany 97 a Developmental physiology of neural crest cells in relation to early pigment synthesis and transfer of melanin into feather cells. Anas domestica (Aves) b Development of feather germ induction and its morphological basis. Anas domestica, Gallus gallus (Aves) c Developmental physiology of parathyroid gland primordium. Salamandra spec. (Urodela) d Reaction of regenerating epidermal and mesodermal tissues in feather germs and hair follicles under influence of cancerogenous compounds. Mus musculus (Rodentia), Columba livia (Aves) KOEHLER, L. D. Ph.D., Prof. — Dept. of Biol., Central Michigan Univ., Mt. PLEASANT, Mich. 48858, U.S.A. • a Comparative study of ultrastructure of sperm and spermiogenesis. (Decapoda, Crustacea) b Ultrastructural aspects of spermatogenesis. Esox vermiculatus (Teleostei) KOHL. D. M. Ph.D. — Dept. of Biol. Sci., Univ. of California, SANTA BARBARA, Calif. 93106, U.S.A. a Control of RNA synthesis in embryos; characterization of RNA's synthesized at different stages by DNA-RNA hybridization. Rana pipiens (Anuca) b Effect of folic acid on RNA synthesis in the kidneys. Mus musculus (Rodentia) KOHLER, H.-J. — I- Zool. Inst., Friedrich-Alexander Univ., Universitatsstr. 19, 852 ER- LANGEN, W.Germany a Embryology. Cyclops spec. (Copepoda, Crustacea) KOHONEN, P. J. Ph.D. — Lab. of Exper. Embryol., Dept. of Zool., Univ. of Helsinki, Arkadiankatu 7, HELSINKI 10, Finland KOJIMA, M. K. D.Sc. — Marine Biol. Station, Nagoya Univ., Sugashima,.TOBA-shi, Mie -ken, 517 Japan a Physiology of egg cleavage. Hemicentrotus pulcherrimus, Pseudocentrotus depressus (Echinoidea) KOLLAR, E. J. Ph.D. — Dept. of Oral Biol., Sch. of Dent., Univ. of Connecticut, FARMINGTON, Conn., U.S.A. • a Differentiation of skin derivatives with special reference to teeth, vibrissae, and feathers; combinations of epithelial and mesodermal tissues are used to determine: the roles of these tissues, the inductive sequence, and the temporal and spatial stability and plasticity of the integument during early stages. Gallus domesticus (Aves), Mus musculus (Rodentia) b Suppression and stimulation of neural crest and integumental differentiation by beta-2- thienylalanine. Same species as a c Development of Meckel's cartilage. (Mammalia) d Long-term culture of dental papillae cells. (Mammalia) KOLLROS, J. J. Ph.D., Prof. — Dept. of Zool., Univ. of Iowa, IOWA CITY, Iowa 52240, U.S.A. • a Influence of thyroid hormones upon limb regeneration in tadpoles. Bufo americanus, Pseu- dacris nigvita, Rana pipiens (Anuva) b Tissue responses and control of sequence in metamorphosis. Rana pipiens, R. catesbeiana, Pseudacris nigrita, Ambystoma jellersonianum (Amphibia) c Development of spinal and cerebral centers. Rana pipiens, R. catesbeiana, Pseudacris nigrita, Bufo americanus (Anura) d Delineation of skin territories of different developmental capacities, especially as in- dicated by gland development. Rana pipiens and other spp. (Anura) KONDO, K. M.Sc. — Dept. of Biophys. and Biochem., Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku, TOKYO, 113 Japan a Reaggregation of dissociated embryonic cells, especially the search for cell-reaggregating substances as known in Porifera. (Echinoidea) b Adhesiveness of cells: 1. mechanism of adhesion; 2. changes in adhesiveness accompanying development and their significance. (Echinoidea) KONDO, Miss N. M.Sc. — Dept. of Biol., Coll. of Gen. Educ, Osaka Univ., Toyonaka, OSAKA, 560 Japan a Induction and development of apogamous structures in gametophytes. Equisetum arvense (Equisetinae) KONIGSBERG, I. R. Ph.D., Prof. — Dept. of Biol., Univ. of Virginia, Gilmer Hall, CHARLOTTESVILLE, Va. 22903, U.S.A. • KONIJN, Th. M. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Universi- teitscentrum "De Uithof", UTRECHT, Netherlands a Chemotaxis, cell aggregation and differentiation. (Acrasiales) b Adenosine-3\5'-monophosphate and other cyclic nucleotides during morphogenesis in lower and higher organisms c Electrophysiology of development. (Acrasiales) (with S. W. de LAAT) KONISHI, T. D.Sc. — Lab. of Developm. Biol., Dept. of Anim. Sci., Coll. of Agricult, Washington State Univ., PULLMAN, Wash. 99163, U.S.A. a Effect of increased CO2 level during preincubation storage on embryogenesis. Gallus domesticus (Aves) KONYUKHOV, B. V Dr.biol.sci., Prof. — Phenogenet. Lab., Inst, of Gen. Genet., Acad, of Sci. of the U.S.S.R., 7(1) Profsojuznaya St., MOSCOW B-133, U.S.S.R. 98 a Developmental study of mutational effects of genes which lead to eye and skeletal abnormalities. Mus musculus (Rodentia) b Genetic control of cell proliferation. Same species as a c Study of mechanisms of eye and skeletal abnormalities by organ culture. Same species as a d Methods for the prevention of inherited eye abnormalities by administering drugs. Same species as a KORKIA (NIJARADZE), Mrs. I. K. Cand.biol.sci. - Dept. of Anim. Embryol Inst of Zool., Acad, of Sci. of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. a Cellular foundations of immunogenesis b Comparative research of immunological potentiality. (Reptilia; Aves) KORN, H. F. Dr.rer.nat. — I.Zool. Inst., Friedrich-Alexander Univ., Universitatsstr 19 852 ERLANGEN, W.Germany a Development. ( Nemathelminthes) b The postlarval brain. (Polychaeta) KORNGUTH, S. E. Ph.D., Prof. — Depts. of Neurol, and Physiol. Chem., Coll of Med Univ. of Wisconsin, MADISON, Wis. 53706, U.S.A. a Changes in histone distribution during development of the nervous system. Bos taurus, Sus domesticus (Artiodactyla) , Macaca mulattta (Primates) b Proteins of the synaptic complex and development of synaptic contacts. Same species as a c Development of fetal cerebellum (electron microscopy, Golgi staining). Macaca mulatta (Primates) KOROCHKIN, L. I. Dr.med.sci., Prof. — . Inst, of Cytol. and Genet., Pravda St. 9, ap. 4, NOVOSIBIRSK-90, U.S.S.R. a Experimental morphology, cytochemistry, and cytophysiology of the developing nervous system. Rattus norvegicus, Mus musculus (Rodentia) b Developmental genetics. Drosophila melanog aster, D. virilis (Diptera) c Regeneration of the neural retina with special reference to isozymic patterns of LDH. Tritmus cristatus (Urodela) (with V. I. MITASHOV) KOROTKOVA, Mrs. G. P. Dr.biol.sci. — Dept. of Embryol., Leningrad State Univ., Mendeleevsky St. 5, LENINGRAD V-164, U.S.S.R. a Comparative study of regeneration, asexual reproduction, and somatic embryogenesis. Leucosolenia complicata, Sycon lingua, Halichondria panicea and other spp. (Porifera) b Development of embryos cultivated in vitro. Halisarca dujardina, Baicalospongia bacillifera (Porifera) KORT, C. A. D. de Dr. — Lab. of Entomol., Agric. Univ., Binnenhaven 7, P.O.B. 62, WAGENINGEN, Netherlands a Effects of hormones on flight muscle development. Leptinotarsa decemlineata (Coleoptera) b Hormonal control of the synthesis of vitellogenic proteins during oogenesis. Leptinotarsa decemlineata (Coleoptera) KOSCIELSKI, B. D.Sc. — Inst, of Zool., Univ. of Wroclaw, ul. Sienkiewicza 21, WROC- LAW 2, Poland a Cytology and cytochemistry of development. Thermobia domestica (Thysanura) KOSHELEV, B. W. Cand.biol.sci. — Inst, of Anim. Evolut. Morphol. and Ecol., Acad, of Sci. of the U.S.S.R., Lenin Ave. 33, MOSCOW W-71, U.S.S.R. a Gametogenesis, sex cycles, and spawning ecology. Perca fluviatilis, Lucioperca lucioperca, Acevina cevnua, Rutilus rutilus, Abramis brama, Scardinius erythrophthalmus, Cyprinus carpio, Tinea tinea, Carassius carassius, Esox lucius, Coregonus lavaretus and others (Teleostei) KOSHIDA, Y. D.Sc. — Dept. of Biol., Coll. of Gen. Educ, Osaka Univ., Toyonaka, OSAKA, 560 Japan a Cytological studies on the presence of recognizable sex-associated differences. Gallus domesticus, Coturnix c. japonica, Meleagris gallopavo (Aves) b Histochemistry of developing photoreceptors. Lymnaea spec, Euhadra spec, Limax spec. (Pulmonata) , Monodonta spec, Conomurex spec, Littorina spec. (Pcosobranchia, Gastro- poda), Pecten spec, Chlamys spec. (Lamellibranchia), Octopus spec. (Octopoda), Sepia spec. (Decapoda, Cephalopoda) c Histochemistry of developing digestive organs. (Mollusca; Amphibia) KOSIN, I. L. Ph.D., Prof. — Lab. of Developm. Biol., Dept. of Anim. Sci., Coll. of Agric. Washington State Univ., PULLMAN, Wash. 99163, U.S.A. a Effect of increased C02 level during preincubation storage on embryogenesis. Uallus domesticus (Aves) „ b Uptake of 3H-thymidine by early embryonic tissue and its effect on mitotic activity, bame species as a „ . . . . KOSKIMIES, O. J. M.D. — Lab. of Exper. Embryol., Dept. of Zool., Univ. of Helsinki. Arkadiankatu 7, HELSINKI 10, Finland . , a Virus-induced abnormalities in embryonic development. Homo sapiens (Primates) (witn L. O. SAXEN, Dept. of Pathol.) „ „ c_, , v ,. KOSTELLOW, Miss A. B. Ph.D. — Dept. of Physiol., Albert Einstein Coll. of Med., Yesniva Univ., 1300 Morris Park Ave., NEW YORK, Bronx, N.Y. 10461, U.S.A. a Enzyme induction in the embryo; the conditions controlling the synthesis ot tissue specinc 99 enzymes from competitive pathways of tryptophan metabolism leading to the production of kynurenine or serotonin, studied in dissociated late blastula and early gastrula cells. Rana pipiens (Anura) b The ionic events that occur during blastula formation which are associated with morphogenesis and cell differentiation; the transport of cytoplasmic Na+ into the blasto- coel: 1. mapping the changing electric fields at the surface of the developing embryo and correlating these fields with known patterns of cell migrations; 2. monitoring the rate of Na+ release in each of the germ layers; 3. assaying for vasopressin-like hormone activity in blastula extracts. Rana pipiens (Anura) KOSTOVIC (KNE2EVIC), Mrs. Lj. M.D. — Inst, of Histol. and Embryol., Univ. of Zagreb, Salata 3, P.O.Box 166, 41001 ZAGREB, Yugoslavia a Temporal sequence of appearance of collagen and elastin fibrils and basement membranes, their pattern organization and relation to morphogenetic events during ontogenesis. Rattus norvegicus (Rodentia) (with A. 3VAJGER) KOTANI, M. M.Sc. — Lab. of Embryol., Fac. of Sci., Osaka City Univ., 459 Sugimoto-cho, Sumiyoshi-ku, OSAKA, Japan a Nature of germinal cytoplasm. Xenopus laevis (Anura) KOYAMA, T. M.D.,Ph.D. — , Dept. of Anat., Tokyo Med. and Dent. Univ., 1-5-45, Yushima, Bunkyo-ku, TOKYO, 113 Japan a Tissue transplantation. Rana japonica, Rhacophorus schlegelii, Xenopus laevis (Anura) KOZIK, M. M.D. — Inst, of Neurol, and Sensory Organs, Med. Acad., Przybyszewskiego St. 49, POZNAfi, Poland a Histochemistry of glia cells in the developing nervous system. (Mammalia) b Histochemical mapping of the developing brain. (Mammalia) KRAICER, P. F. Ph.D., Prof. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL-AVIV, Israel a The metabolism of spermatozoa. Homo sapiens (Primates) b Composition of follicular fluid. Homo sapiens (Primates) c Behavior of cumulus granulosa cells in vitro, and their function in fertilization. Rattus spec. (Rodentia) , Homo sapiens (Primates) d Reproductive biology. Psammomys obesus (Rodentia) e Microcinematography of fertilization. Rattus norvegicus (Rodentia) KRAL, B. RNDr. — Dept. of Morphol., Inst, of Vertebr. Zool., Czechoslov. Acad, of Sci., Kvetna 8, BRNO, Czechoslovakia a Comparative studies of chromosomes. (Lacertilia; Rodentia; Insectivora) KRAMER, Miss B. B.Sc.(Hons.) — Dept. of Anat., Med. School, Univ. of the Witwaters- rand, Hospital St., Hillbrow, JOHANNESBURG, S.Africa a Effects of actinomycin D on developing pigment cells. Xenopus laevis (Anura), Gallus domesticus (Aves) KRAMER, J. P. Ph.D., Prof. — Dept. of Entomol., Cornell Univ., 10 Comstock Hall, ITHA- CA, N.Y. 14850, U.S.A. a Morphological development. Octosporea muscaedomesticae (Microsporidia, Sporozoa) b Pathogenesis of octosporeosis. Phormia regina, Musca domestica (Diptera) c Abnormal development in unnatural hosts. Octosporea muscaedomesticae (Microsporidia, Sporozoa), Muscoidea (Diptera) KRANTZ, Mrs. H. Dr.med. — Anat. Inst., Med. Bereich, Univ. Rostock, Gertrudenstrasse 9, 25 ROSTOCK 1, East. Germany a Einfluss des Alters einer Kultur auf die Zellkerngrosse. Gallus domesticus (Aves), Mus musculus (Rodentia) b Der Zellkern im Organismus und im Explantat. Gallus domesticus (Aves), Mus musculus (Rodentia) c Development of the Hortega-cells. Gallus domesticus (Aves), Mus musculus (Rodentia) KRATOCHWIL, K. Dr.phil. — Inst, fur Krebsforsch., Univ. Wien, Borschkegasse 8a, Post- fach 72, A- 1090 WIEN, Austria • a Organ-specificity in mesenchymal induction. Mus musculus (Rodentia) b Endocrine control of development. Mus musculus (Rodentia) c Mammary gland development. Mus musculus (Rodentia) KRAUS, Miss C. Dr.phil. — Brain Anat. Inst., Untere Zollgasse 71, (Waldau), 3072 OSTERMUNDIGEN-BE, Switzerland a Ontogenesis of the brain. (Cetacea) KRAUS, R. M.D. — Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4, PRAGUE 2, Czechoslovakia a Differentiation and role of prechordal plate in early development of cephalic region (submicroscopic and cytochemical studies in normal and experimental conditions). Gallus domesticus (Aves), Rattus rattus (Rodentia), Homo sapiens (Primates) b Differentiation of the chemoreceptor cell (comparative studies on the submicroscopic structure, enzyme histochemistry). (Rodentia; Carnivora), Homo sapiens (Primates) c Differentiation of paraganglionic tissue. Homo sapiens (Primates) d Comparative studies of prenatal development of Leydig interstitial cells. (Primates; Rodentia) 100 KRAUSE, G. Dr.phil., Prof. — Zool. Inst, der Univ., Rontgenring 10, 87 WURZBURG, W.Germany — Heiligenberg Inst., 7799 HEILIGENBERG, W.Germany . a Experimentell erzeugte duplicitas cruciata. Tachycines asynamorus (Octhopteca) b Keimanlagenbildung und Ei-Diapause. Bombyx mori (Lepidoptera) c Vergleichende Embryonalentwicklung. (Insecta) d Kultur embryonaler Gewebe. (Insecta) KREDIET, P. M.V.D. — Dept. of Anat. and Embryol., Med. Fac. Rotterdam P O Box 1738, ROTTERDAM C 3002, Netherlands a Ontogenetic malformations of the heart and great vessels in neonates and adults. (Mam- malia), Homo sapiens (Primates) b Development of the heart and great vessels. (Aves; Mammalia), Homo sapiens (Primates) c Experimental malformations and regeneration of blood vessels. Same species as b KREJSA, R. J. Ph.D. — Biol. Sci. Dept., Calif. State Polytechnic Coll., SAN LUIS OBISPO Calif. 93401, U.S.A. a Development and mineralization of scales; role of the epidermis in scale development; light and electron microscopy of developing skin. Poecilia reticulata, Ocyzias latipes, Salvelinus fontinalis (Teleostei) b Inductive interactions between epidermis and dermis: comparative aspects of integument morphogenesis. (Vertebrata) c Development of mucus cells in epidermis. Poecilia reticulata (Teleostei) (with R. A. HEINBACH) d Shedding of skin. Congiopodus spec. (Teleostei) KRESS, Miss A. Ph.D. — Abt. Anat., Med. Fak., Rhein.-Westf. Techn. Hochschule, Alter Maastrichter Weg 1, 51 AACHEN, W.Germany a Vitellogenesis and early degeneration of eggs. (Amphibia) b Variability of egg-capsule volumes during development. (Opisthobranchia, Gastropoda) KRETCHMER, N. Ph.D., M.D., Prof. — Dept. of Pediat, Stanford Univ., 300 Pasteur Drive, STANFORD, Calif. 94305, U.S.A. a Developmental enzymology: 1. disaccharidases in developing intestine; 2. pyrimidine biosynthesis. Mus musculus, Rattus norvegicus (Rodentia), Zalophus californianus (Pin- nipedia) KRIDER, H. M. Ph.D. — Inst, of Cell. Biol., Univ. of Connecticut, U-125, STORRS, Conn. 06268, U.S.A. a Regulation of nucleolar transcription in salivary glands of third instar larvae. Drosophila spec. (Diptera) KRISHNAKUMARAN, A. Ph.D., Prof. — Dept. of Biol., Marquette Univ., 530 N. 15th St., MILWAUKEE, Wis. 53233, U.S.A. • a Nucleic acid metabolism during embryonic and postembryonic development (autoradio- graphy and surgical techniques). Acheta spec. (Orthoptera) , Tenebcio spec. (Coleopteca) , Gallecia spec. (Lepidoptera), Drosophila spec. (Diptera) b Teratogenic effects of juvenile hormone. (Aves; Mammalia) KRITCHINSKAYA, Miss E. B. Cand.biol.sci. — Dept. of Embryol., Leningrad State Univ., Mendeleevsky St. 5, LENINGRAD V-164, U.S.S.R. a Asexual reproduction, regeneration, and somatic embryogenesis. Dugesia tigrina (Turbel- laria) KROEGER, H. Dr.rer.nat, Prof. — Inst, fur Genet., Univ. des Saarlandes, 66 SAAR- BRUCKEN 11, W.Germany a Puffing patterns in giant chromosomes and the mechanism by which they are evoked and controlled. Chironomus thummi, Ch. tentants (Diptera) b Embryology and genetics of pattern formation. Drosophila melanogaster (Diptera) KRZANOWSKA, Mrs. H. Ph.D. — . Dept. of Anim. Genet, and Org. Evolut, Jagellonian Univ., Krupnicza 50, KRAKOW 2, Poland a Studies of heterosis: sperm characters, fertilization and cleavage rate in inbred and cross- bred animals. Mus musculus (Rodentia) KRZYSZTOFOWICZ, Miss A. D.Sc. — Zool. Dept., Jagellonian Univ., ul.Krupnicza 50, KRAKOW, Poland a Oogenesis and embryo development. (Collembola) KUBLI, E. cand.phil. — Zool.-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, CH-8006 ZURICH, Switzerland a Nucleic acids of various mutants. Drosophila melanogaster (Diptera) b Isozymes and gut enzymes of the mutant 1(2) me. Drosophila melanogaster (Diptera) KUBOTA, T. D.Sc, Prof. — Biol. Lab., Lib. Arts Coll., Kagoshima Univ., Kamoike-cho, KAGOSHIMA-shi, 890 Japan a Direction and site of origin of cleaving force. Triturus pyvrhogastev (Urodela) KUCIAS, J. Ph.D. — Dept. of Gen. Biol., Silesian Acad, of Med., K.Marksa 19, Rokitnica. ZABRZE 8, Poland KUDOKOTSEV, V. P. B.Sc. — Dept. of Biol., Kharkov State Univ., Dzerjinsky Square 4, KHARKOV, U.S.S.R. a Experimental investigations in limb regeneration. (Pisces, Amphibia and other Vertebrata) 101 KUHN, O. Dr.rer.nat., Prof.(Emer.) — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W.Germany a Pigmentierung und Musterbildung bei einfachen und Zwillingsfedern. (Aves) KUIJEN, C. J. van M.Sc. — Zool. Lab., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Nether- lands a Functional aspects of development of the vascular system. Rana temporaria (Anura) KULANGARA, A. C. Ph.D., Prof. — Dept. of Anat, Med. Coll. of Pennsylvania, 3300 Henry Ave., PHILADELPHIA, Pa. 19129, U.S.A. a Seminal antigens. Homo sapiens (Primates) b Passage of homologous and heterologus proteins from the mother into the early conceptus. Oryctolagus spp. (Lagomorpha) c Kinetics of the passage of bovine serum albumin from maternal blood into the unimplanted blastocyst. Same species as b KULKA, R. G. Dr. — Dept. of Biol. Chem., Hebrew Univ., JERUSALEM, Israel • KUNZ, W. Dr. — Inst, fur Allgem. Biol., Univ. Dusseldorf, Ulenbergstr. 127, 4 DUSSEL- DORF, W.Germany a Nuclear structure (lampbrush chromosomes, multiple nucleoli, and extra DNA) of the germinal vesicle in the panoistic ovary. Gcyllus domesticus (Orthoptera) b Uptake of haemolymph proteins in the oocyte and its deposition in the yolk platelets. Gryllus domesticus, Locusta migratocia (Orthoptera) c Characterization of germ line limited DNA (density satellite fractions, in situ hybridiza- tion). Heteropeza pygmaea (Cecidomyiidae, Dipteca) KUNZ (RAMSAY), Mrs. Y. W. Dr.phil. — Zool. Dept., Univ. Coll. Beifield, Stillorgan Rd., DUBLIN 4, Ireland KtJNZEL, E. Dr.med.vet., o.Prof. — Inst, of Vet. Histol. and Embryol., Freie Univ. Berlin, Koserstr. 20, 1 BERLIN 33, W.Germany a Blood vessels of the placenta. (Proboscidea), Hippopotamus spec. (Artiodactyla) b Differentiation of fibroblasts in the paraplacenta. Ovis aries (Artiodactyla) KURIHARA, M. — Inst, of Appl. Entomol., Fac. of Agric, Iwata Univ., Ueda 3-18, MORIO- KA, Japan a Histology and histochemistry of oogenesis. (Insecta) KURIYAMA, K. Ph.D., Prof. — Dept. of Psychiatry, Downstate Med. Center, State Univ. of New York, KCH, J.Bldg., 450 Clarkson Ave., NEW YORK, Brooklyn, N.Y. 11203, U.S.A. a Developmental changes of amino acid metabolism in brain. Mus musculus, Rattus spec. (Rodentia) b Effect of addictive drugs on the metabolism of developing brain. Mus musculus, Rattus spec. (Rodentia) KURODA, Y. D.Sc. — Dept. of Morphol. Genet., Natl. Inst, of Genet., Yata 1, 111, MISIMA, Sizuoka-ken, 411 Japan a Gene expression in imaginal disc cells in organ and cell culture. Drosophila melanogaster (Diptera) b Single cell cultivation of embryonic cells carrying some genetic markers. Drosophila melanogaster (Diptera) c Studies on histoformative cell aggregation from dissociated embryonic cells. Gallus domes- ticus (Aves), Mus musculus (Rodentia) KURULASHVILI, Mrs. L. I.— Dept. of Anim. Embryol., Inst, of Zool., Acad, of Sci. of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. a Effect of antigens on follicular epithelium. Gallus domesticus (Aves) KOTHE, H. W. Dr.rer.nat. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W.Germany a Determination problems in early development; changes of protein pattern in the yolk system. Dermestes frischi (Coleoptera) KUUSI, Miss T. K. Ph.D. — Lab. of Exper. Embryol., Dept. of Zool., Univ. of Helsinki, Arkadiankatu 7, HELSINKI 10, Finland • (no embryological work in progress) KVINIKHIDZE (CICISHVILI), Mrs. G. S. — Lab. of Cytol., Inst, of Zool, Acad, of Sci. of Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. a Relation between ultrastructure and specific protein synthesis in eye primordium differentia- tion (autoradiography, organ culture, cytophotometry) . Gallus domesticus (Aves) KVINNSLAND, S. -< Inst, of Anat., Univ. of Bergen, Arstadvollen, 5000 BERGEN, Norway a The profile of the foetal face, an anthropological and roentgen anatomical study of the foetal face and cranial base in their sagittal growth processes. Homo sapiens (Primates) b Early spread of ossification of the upper and lower jaws. Same species as a c Growth of the upper jaw after removal of the permanently growing incisors. Rattus spec. (Rodentia) KVIST, T. N. M.Sc. — 2032 S. 57th St., PHILADELPHIA, Pa. 19143, U.S.A. a In vitro behavior of embryonic chondrocytes in different states of differentiation (morphology, histo- and biochemistry). Gallus domesticus (Aves) KYoNO (NAKAGAWA), Mrs. H. MA. — Embryol. Sect., Biol. Dept., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa-machi, Setagaya-ku, TOKYO, 158 Japan 102 HHHS' *£ ^ii, Ph-?' ~ SelL °? Zr°oL' Hniv- of Manit°ba, WINNIPEG 19, Man., Canada LAANE, H. M. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTER- DAM-O., Netherlands a Light microscopy, electron-microscopy, histochemistry, physiology, and experimental teratogenesis of heart development in the embryo. Gallus domesticus (Aves), Mus musculus (Rodentia) (with J. A. ROEST and J. A. LOS) LAAT, S. W. de M.Sc. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1 Universi- teitscentrum "De Uithof", UTRECHT, Netherlands a Electrical coupling and membrane permeabilities for cations during early development. Xenopus laevis, Ambystoma mexicanum (Amphibia) b Electrophysiology and electron microscopy of the effect of cytochalasin B on the mechanism of first cleavage. Xenopus laevis (Anura) (with J. G. BLUEMINK) c Electrophysiology of development. (Acrasiales) (with Th. M. KONIJN) LABORDUS, V. Ph.D. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands a The effect of UV-light on cleavage and morphogenesis. Lymnaea stagnalis (Gastropoda) b Repair processes in eggs after UV-irradiation. Same species as a LABOUR, G. R. — Lab. de Zool., Centre d'Orsay, Univ. Paris-Sud, 91 ORSAY, France a Cytology of fat body development, with special reference to cell ultrastructure and cytochemistry. Leptinotarsa decemlineata (Coleopteca) LACALLI, Th. C. B.S. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a Study by laser microbeam of the new spatial patterns generated by irradiation of the cytoplasm and developing cell wall. Micrasterias rotata, M. denticulata, M. radiata (Desmidiales) (with A. B. ACTON) b Possible mathematical models for generating very non-random arrays of microscopic particles; experimental testing of the models with pore bodies in the cell wall. Same species as a (with A. B. ACTON) LaCHANCE, L. E. Ph.D. — Metabol. and Radiat. Res. Lab., State Univ. Stat., FARGO, N.D. 58103, U.S.A. — temporarily: FAO/IAEA Div. of Atom. Energy in Agric, Internat. Atom. Energy Agency, Karntner Ring 11, A-1010 WIEN 1, Austria LACROIX, J. C. — Lab. d'Embryol., Univ. de Paris VI, 9 quai Saint Bernard, 75 PARIS Ve, France • a Gene activity in oogenesis; RNA and protein synthesis (lampbrush chromosomes); fate of oocyte products in embryogenesis. Pleurodeles waltlii, P. poketi (Urodela) b Cytological detection of mutations with lampbrush chromosomes. Same species as a LA CROIX, L. J. Ph.D., Prof. — Dept. of Plant Sci., Fac. of Agric, Univ. of Manitoba, WINNIPEG 19, Man.. Canada LADAS, A. Dr. — Inst, fur Landwirtsch. Zool. und Bienenk. der Univ., Melbweg, 53 BONN, W.Germany a Pathological abnormalities in development, caused by herbicides. Apis mellifera (Hymenop- tera) LAFONT. R. D A. M.S. — Lab. de Zool., Ecole Norm. Superieure, 46 rue d'UIm, 75 PARIS Ve, France a Differentiation of imaginal wing discs: nucleic acids and pteridine metabolism, changes in enzyme titers. Pieris brassicae (Lepidopteva) b Action of 5-fluorouracil (5-FU) and other chemical agents on the development of imaginal discs. Same species as a LAGUCHEV, S. S. Dr.med.sci. — Lab. of Cytol., Inst, of Med. Genet., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Electron microscopy of gonocytes and oogonia in the embryo. Homo sapiens (Primates) LAHTI, A. — Lab. of Exper. Embryol., III. Dept. of Pathol., Univ. of Helsinki, Haartmanin- katu 3, HELSINKI 29, Finland a Drug-induced teratogenesis in vitro. Mus musculus (Rodentia) (with L. O. SAXEN and I. KAITILA) LAI-FOOK, Miss J. E. I. Ph.D. — Dept. of Zool., Univ. of Toronto, 25 Harbord St., TORONTO 5, Ont, Canada a Fine structure of haemocytes during the moult/intermoult cycle. Galteria mellonella, Calpodes ethlius (Lepidopteva) b Fine structure and histochemistry of developing dermal glands. Rhodnius prolixus (Hemiptera) , Calpodes ethlius (Lepidoptera) LAIRD, C. D. Ph.D. — Dept. of Zool., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Relationship between developmental patterns and genome organization. (Insecta; Tunicata; Mammalia) b Developmental genetics of linked genes; correlation of gene expression with karyotype arrangement. Dcosophila melanogaster (Dipteta) LAKSHAMANAN, K. K. Ph.D., Prof. — Dept. of Bot, Pachaiyappa's Coll., MADRAS-30, India 103 a Descriptive and experimental embryology. Cyclamen spec, Rhizophora spec, Gibba spec. (Angiospermae) b Embryogenesis. Luzula spec. (Juncaceae) c Irregular embryogenesis and its possible correlation with embryo differentiation in tissue culture. Cocydalis spec. (Fwnariaceae) LAKSHMANAN, S. B.S. — Dept. of Anat., Jawaharlal Inst, of Postgrad. Med. Educ. and Research, PONDICHERRY-6, India a Effect of vascular occlusion on seminiferous epithelium cycle in the testis. Mus musculus (Rodentia) b Assessment of gestational age of the new-born by amniotic fluid cytology. Homo sapiens (Primates) LAKSHMI, Miss M. S. Ph.D. — , Dept. of Biochem. Pathol., Univ. Coll. Hosp. Med. School, University St., LONDON WC1E 6JJ, England a Morphogenetic effects of follicle-stimulating hormone. Gallus domesticus (Aves) (with G. V. SHERBET) b Behaviour of neoplastic cells transplanted into embryos. Gallus domesticus (Aves) (with G. V. SHERBET) c Biochemical and biophysical characterization of the cell surface using natural pH gradients. (with G. V. SHERBET) LALLIER, R. A. Dr.Sc. — Station Zool., Fac. des Sci. de Paris, 06 VILLEFRANCHE-sur- MER, France • a Biochemical aspects of embryonic determination (studies of animalizing and vegetalizing agents) . Paracentrotus lividus (Echinoidea) LAMMERS, G. J. Med.drs. — Dept. of Anat. and Embryol., Univ. of Nijmegen, Geert Grooteplein N. 21, NIJMEGEN, Netherlands a The development of some basal telencephalic areas. Cricetulus barabensis griseus (Roden- tia) LANDAUER, W. Ph.D., Prof. — Dept. of Anim. Genet., Univ. Coll. London, Wolfson House, 4 Stephenson Way, LONDON NW1 2HE, England — private address: 16 Highgate Ave., LONDON N.6, England • a A causal analysis of teratogenic action of various chemical compounds. Gallus domesticus (Aves) b The nature and significance of phenocopies. Gallus domesticus (Aves) c Tests of teratogenic action of herbicides. Gallus domesticus (Aves) d The nature of dimethylsulfoxide as solvent in tests with teratogens. Gallus domesticus (Aves) LANDESMAN, R. Ph.D. — Dept. of Zool., Univ. of Vermont, BURLINGTON, Vt. 05401, U.S.A. LANDSTROM, U. — Dept. of Zoophysiol., Univ. of Umea, S 901 87 UMEA, Sweden a Oxygen uptake during embryogenesis. Tubtfex spp. (Oligochaeta) (with S. L0VTRUP) LANG, A. Ph.D., Prof. — MSU/AEC Plant Research Lab., Michigan State Univ., EAST LANSING, Mich. 48823, U.S.A. • a Hormone physiology. (Plantae) b Physiology of flowering. Hyoscyamus niger (Solanaceae) and other spp. LANGMAN, J. M.D., Ph.D., Prof. — Dept. of Anat, Med. School, Univ. of Virginia, CHARLOTTESVILLE, Va. 22901, U.S.A. • a Autoradiography and immunology of muscle development in vivo, and of brain development under normal and abnormal conditions. Gallus domesticus (Aves), (Rodentia) LANOT, R. Lic.es Sci. — Lab. de Zool., U.E.R. Phys. Chim. Biol., Univ. Nancy I, Case Off. 72, 54 NANCY 01, France a Malformations axiales: analyse causale de Taction teratogene du bleu trypan et de la RNA-se. Gallus gallus (Aves) LARINK, O. Dr. — Zool. Inst, der Techn. Univ., Pockelsstr. 10a, 3300 BRAUNSCHWEIG, W.Germany a Cleavage and organogenesis. Ophryotrocha (Polychaeta) Embryology. (Lepismatidae; Machilidae, Thysanura) LARKIN, L. H. Ph.D. — Dept. of Anat. Sci., Med. Sch., Univ. of Florida, GAINESVILLE, Fla. 32603, U.S.A. LARRIVEE, D. H. M.A — Dept of Zool.., Univ of British Columbia., VANCOUVER 8. B.C., Canada a Molecular and cellular aspects of arm formation in larvae. Strong ylocentrotus droebachien- sis, S. purpuratus, S. franciscanus (Echinoidea) (with C. V. FINNEGAN) LARSSON, K. S. Odont. D., Prof. — Lab. of Teratol., Karolinska Inst., S-104 01 STOCK- HOLM 60, Sweden a Chemical interaction with mucopolysaccharide synthesis during embryogenesis and fetal development. Mus musculus, Rattus norvegicus (Rodentia) b Experimental developmental morphology: studies on facial formation. Mus musculus, Rattus norvegicus (Rodentia) c Transplantation of fertilized ova. Mus musculus (Rodentia) 104 LASH, J. W. — Dept. of Anat., Sch. of Med., Univ. of Pennsylvania, PHILADELPHIA Pa 19104, U.S.A. #' LA SPINA, Miss R. D.Sci. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18 90123 PALERMO, Italy a Fine structure of unfertilized eggs and egg fragments. Ascidia malaca (Ascidiacea) b The analysis of the colour pattern. Discoglossus pictus (Anura) LASSAU, J. P. — Lab. d'Anat., Univ. Paris V — Rene Descartes, 45 rue des Saints Peres 75 PARIS Vie, France a Croissance de la vulve. Homo sapiens (Primates) b Organogenesis and morphogenesis of biliary ducts. Same species as a LATSHAW, W. K. Ph.D., Prof. — Dept. of Vet. Anat., Western Coll. of Vet. Med Univ of Saskatchewan, SASKATOON, Sask., Canada a Closure mechanisms of optic fissure. Gallus domesticus (Aves), Mus musculus, Mesocri- cetus auratus (Rodentia) LAUFER. H. Ph.D., Prof. — Biol. Sci. Group, Sect, of Developm. Biol., Univ. of Connecticut Life Sciences Bldg. U-42, STORRS, Conn. 06268, U.S.A. • a Effects of hormones on gene action as revealed by puffing of polytenic chromosomes. Chironomus spec. (Diptera) b Regulation of metamorphosis by hormones. (Insecta) c Regulation of yolk proteins, enzymes, salivary gland secretion proteins, and hemoglobins during metamorphosis. (Crustacea; Insecta) LAUGfi, Miss G. Dr.es Sci. — Lab. d'Entomol. et d'Ecol. Exper., Centre d'Orsay, Univ. Paris-Sud, 91 ORSAY, France a Experiments on determination and differentiation of genital apparatus, triploid intersexes. Drosophila melanogaster (Diptera) b Cytology of agametic gonads after U.V. irradiation during the polar cells stage. Same species as a c Modifications of gonad development by thermal stress. Same species as a LAVALLE, D. B.Sc. — Dept. of Gen. Biol., Inst, of Biol. Sci., Fed. Univ. of Minas Gerais, Rua Carangola 288 — 4°andar, C.P. 253, BELO HORIZONTE, M.G., Brazil a DNA content and nuclear size in somatic and germinal tissues and the differentiation of tissues related to the ratio DNA/nuclear size; somatic polyploidy in some tissues. Bufo paracnemis (Anura) LAVARACK, J. O. Ph.D. — School of Anat., Univ. of Melbourne, PARKVILLE 3052, Vict., Australia a Histochemistry of cell interactions in the development of primary tissues. Gallus gallus (Aves) LaVELLE, A. Ph.D., Prof. — Dept. of Anat., Coll. of Med., Univ. of Illinois P.O.Box 6998, CHICAGO, 111. 60680. U.S.A. LAVELLE, C. L. B. Ph.D. — Dept. of Oral Pathol., Dental School. St. Mary's Row, BIRMINGHAM B4 6NN, England a Embryology of the skull and of dental cusp pattern. Rattus norvegicus (Rodentia) , Homo sapiens (Primates) LaVELLE (WILSON) , Mrs. F. Ph.D. — Dept. of Anat., Univ. of Illinois, P.O.Box 6998, CHICAGO, 111. 60680, U.S.A. LAVERDURE, Miss A.-M. — Lab. de Biol. Anim., Fac. des Sci.. Univ. Paris Sud, 91 ORSAY, France a Differenciation de la gonade femelle et vitellogenese. Tenebrio molitor (Coleoptera) LAWRENCE, A. J. Ph.D. — Dept. of Cell Biol., Univ. of Glasgow, GLASGOW W.2, Scotland, U.K. LAWRENCE, I. E. Jr. Ph.D.. Prof. — Dept. of Biol., East Carolina Univ., Box 2577, GREENVILLE, N.C. 27834, U.S.A. a Comb development. Gallus domesticus (Aves) 1. Development of the feathered crest fowl's comb primordium in an experimentally altered position. 2. Histochemical patterns and hormonal influence on comb tissue development. 3. Electrophoretic analysis of comb protein. 4. Changing patterns in development of the normal single comb between 4J/£ and 9 days incubation. 5. Analysis of the epidermal-dermal junction in reciprocal 8 day comb and non-comb tissue grafts. 6. Analysis of comb tissue interactions in graft recombinations (heteroplastic combina- tions of dermis and epidermis) of the wyandotte (dominant rose comb) and the white leghorn (recessive single comb). b Comb and beak malformation resulting from removal of neural crest between stages 7-9. Gallus domesticus (Aves) LAWRENCE, P. A. Ph.D. — Lab. of Molec. Biol., Med. Research Council. Hills Rd.. CAMBRIDGE CB2 2QH, England a The development of bristles; in particular factors controlling their position and their initiation. Oncopeltus fasciatus (Heteroptera) b Developmental genetics. Oncopeltus fasciatus (Heteroptera) 105 c Positional information and polarity in the epidermal cells. Rhodnius prolixus (Heteroptera) d Clonal analysis of segment growth. Oncopeltus fasciatus (Heteroptera) LAWSON, Miss K. A. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Universiteitscentrum "De Uithof", UTRECHT, Netherlands a Morphogenetic and growth control of salivary glands in vitro. (Rodentia) b Proportionate development of the appendicular skeleton and the action of thyroid hormones in vitro. G alius domesticus (Aves) LAYTON W. M. M.D., Prof. — Dept. of Pathol., Dartmouth Med. School, HANOVER, N.H. 03755. U.S.A. a The mechanism of the teratogenic action of carbonic anhydrase inhibitors. Mesocncetus auratus (Rodentia) b Limb morphogenesis. Amby stoma maculata (Ucodela) , Mesocricetus auratus, Rattus norvegicus (Rodentia) LAZARD (HAUBEN), Mrs. L. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. dc la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Limb regeneration after x-irradiation, and grafts of various tissues and organs. Ambystoma mexicanum (Urodela) LEACH, C. M. Ph.D., Prof. — Dept. of Bot. and Plant Pathol., Oregon State Univ., COR VALLIS, Ore. 97331, U.S.A. a Light induction of reproduction in phytopathogenic species. (Fungi) b Nature of sporogenic substances "P310" associated with spore formation. (Fungi) c Interaction of light and temperature on the induction of reproduction. (Fungi) LEBHERZ. H. Ph.D. — Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonneggstr. 5, 8006 ZURICH, Switzerland a Transcriptive activity of chromatin. Drosophila melanogastec (Dipteca) LEBLOND, C. P. M.D., Ph.D., Prof. — Dept. of Anat, Med. School, McGill Univ., MONTREAL 2, Que., Canada n Development of the thyroid gland. (Vectebrata) b The development of bones and teeth as shown on radioautographs with the help of various labeled substances. (Vertebrata) LECHENAULT, H. M. M.A. — Lab. de Biol. Cell, Fac. des Sci., B.P. 347, 51 REIMS, France a Histo- and biochemistry of hydrolases during head regeneration (lysosomal fractions in activation and morphogenesis) . Eisenia foetida (Oligochaeta) b Interdependence between protein and ribonucleic acid synthesis during activation and before mitosis in regeneration. Same species as a LE DOUARIN, G. H. Dr.es Sci. — Lab. de Physiol. Anim. et Cell., Univ. de Nantes, 38 Bd. Michelet, B.P. 1044. 44 NANTES, France LE DOUARIN (CHAUVAC), Mrs. N. M. Dr.es Sci., Prof. — Lab. d'Embryol., Univ. de Nantes, 38 Bd. Michelet, B.P. 1044, 44 NANTES, France a Etude experimentale du developpement du tube digestif et du foie. Gallus gallus (Aves) b Differenciation biochimique des hepatocytes. Gallus gallus (Aves) c Experiments sur la differentiation de la glande thyroide et de la hypophyse. Gallus gallus (Aves) d La migration et la differenciation des cellules des cretes neurales (greffes interspecifiques) . Coturnix japonica, Gallus gallus (Aves) LEDOUX, L. D.Sc. -, Lab. de Biochim. Cell., Dept. de Radiobiol., Centre d'Etude de l'Energie Nucleaire, 2400 MOL, Belgium a Uptake, fate, and biological effect of exogeneous DNA in living systems, with special attention to embryonic and cancer tissues. Hordeum spec, Arabidopsis spec. (Angio- spermae) , Gallus spec. (Aves), Mus spec. (Rodentia) LEE. H. H. Ph.D. — Dept. of Biol., Univ. of Toledo, TOLEDO, Ohio 43606, U.S.A. LEENDERS, H. J. Dr. — Zool. Lab., Dept. of Cell Biol., Univ. of Nijmegen, Driehuizerweg 200, NIJMEGEN, Netherlands a The mechanism of gene activation by factors involved in the electron transfer system; experimental puff induction. Drosophila hi;dei (Dipteva) LEES. A. D. Sc.D., F.R.S. — Imperial Coll., Field Station, Silwood Park, ASCOT, Berks., England a Control of polymorphic development with special reference to environmental factors. Megoura viciae (Aphididae, Homoptera) LEESON. C. R. M.D.. Prof. — Dept. of Anat., Coll. of Med., Univ. of Missouri, COLUM- BIA. Mo. 65201. U.S.A. a Postnatal development of the liver, with reference to hepatocyte morphology and hematopoietic activity. Oryctolagus cuniculus (Lagomorpha) b Postnatal development of muscle with emphasis on the infrastructure of the mitochondrial population. Sus domesticus (miniature) (Artiodactula) LEFFINGWELL, T. P. Ph.D. — Cell Res. Inst.,' B.L. 220, Univ. of Texas, AUSTIN, Tex. 78712. U.S.A. LEFFORD (FERNANDO), Mrs. F. Ph.D. — Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England 106 a Effects of donor age on cell behaviour in tissue and organ culture. Gallus domesticus (Aues) LEFRESNE, J. Maitre es Sci. — Lab. d'Embryol., Unite de Sci., Univ. de Caen, 14 CAEN, France a Etude experimentale de la segmentation. Ambystoma mexicanum (Ucodela) LEGAY, }. M. Dr.es Sci., Prof. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I 43 Bd du 11 Novembre 1918, 69 VILLEURBANNE, France a Postembryonic development in relation to parental generation and selection. Bombyx mod (Lepidoptera), Ceratitis capitata (Diptera) LEGENDRE, R. Dr.rer.nat, Dr.es Sci., Prof. — Lab. de Zool. II, (Morphol. et Ecol.), Univ. des Sci. et Techn. du Languedoc, Place Eugene Bataillon, 34 MONTPELLIER, France a Embryonic and post-embryonic development. (Araneida, Arachnida) LEGHISSA, S. Ph.D., Prof. — 1st. di Anat. Comp., Univ. di Bologna, Via Belmeloro 8, BOLOGNA (103), Italy • LEGNAME, A. H. Dr.Biochem. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S.M. de TUCUMAN, Argentina a Respiratory metabolism. Bufo arenarum (Anura) b Mitochondria during embryogenesis. Bufo arenarum (Anura) LEGNAME, C. R. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S.M. de TUCUMAN, Argentina a Nuclear transplantation (early stages until neurulation) : 1. haploid and diploid nuclei; 2. electrophoretic analysis of proteins. Bufo arenarum (Anura) LE GOASCOGNE, C. D.E.S. — Inst. Natl, de la Sante et de la Rech. Med., Unite de Physiol, placent, Hop. Saint-Antoine, 184 rue du Faubourg Saint-Antoine, 75 PARIS Xlle, France LEGRAND, Miss C. — Inst. Natl, de la Sante et de la Rech. Med., Unite de Physiol. Placent., Hop. Saint-Antoine, 184 rue du Faubourg Saint-Antoine, 75 PARIS Xlle, France LEHMAN. H. E. Ph.D. — Dept. of Zool., Univ. of North Carolina, CHAPEL HILL, N.C. 27514, U.S.A. • LEHMANN, R. Dr.rer.nat. — Biol. Inst. I (Zool.) der Univ., Katharinenstr. 20, 78 FREI- BURG, W.Germany a Influence of temperature, pH and some metabolites on differentiation of fine structure and histochemistry of embryonic cells. Triturus alpestris (Urodela) b Effects of polyions and ions on differentiation; localization of ions in embryonic cells on electron microscopic level under normal and experimental conditions. Triturus alpestris, T. helveticus (Urodela) , Xenopus laevis (Anura) LEIGHTON, J. M.D., Prof. — Dept. of Pathol., Sch. of Med., Univ. of Pittsburgh, PITTS- BURGH, Pa. 15213, U.S.A. • LEIKOLA, A. H. A. Ph.D. — Lab. of Exper. Embryol., Dept. of Zool., Univ. of Helsinki, Arkadiankatu 7, HELSINKI 10, Finland a Primary induction. Gallus domesticus (Aves) LELIEVRE, Miss C. S. — Lab. d'Embryol, Univ. de Nantes, 38 Bd. Michelet, B.P. 1044, 44 NANTES, France a Etude experimentale de la differenciation des cellules a calcitonine. Gallus gallus, Coturnix c. japonica (Aves) b Origine embryologique des arcs visceraux (greffes interspecifiques). Same species as a LEMEZ. L. MUDr. — Dept. of Anat., Charles Univ., U nemocnine 3, PR AH A 2, Czechoslo- vakia a Embryonal haematology. Gallus domesticus (Aves) b Experimental topogenesis and morphology of the pneumogastric system. Gallus domesticus (Aves) LE MOIGNE, A. — Lab. de Biol. Anim., Fac. des Sci., Univ. Paris Sud, 91 ORSAY, France a Developpement embryonnaire (microscopie electronique). (Planariidae, Turbellaria) LEMTIS, H. G. Dr.med., Prof. — Dept. of Obstet and Gynecol, Klin. Steglitz, Free Univ. Berlin, Hindenburgdamm 30, 1 BERLIN 45, W.Germany a The passage of drugs across the placenta studied in an artificial uterus. Homo sapiens (Primates) b Reaction of the fetal vascular system of the placenta to morphine and similar substances. Same species as a n JV LENDER, Th. Prof. — Lab. de Biol. Anim., Fac. des Sci., Univ. Paris Sud, 91 ORbAY, France a Regeneration: substances inductrices et inhibitrices. (Planariidae, Turbellaria) b Microscopie electronique de la regeneration, en particulier des neoblastes. Dugesta gono- cephala (Turbellaria) c Neurosecretion. (Planariidae, Turbellaria) d Regeneration. Asterina gibbosa (Asteroidea) e Culture in vitro d'organes larvaires. Galleria spec. (Lepidoptera), Penplaneta spec. (Blattariae) f Culture in vitro de gonades femelles. Tenebrio molitor (Coleoptera) 107 LENDON, R. G. Ph.D. — Dept. of Child Health, Congen. Anomalies Res. Unit, Children's Hosp., Fulwood Rd., SHEFFIELD S10 3BR, England a Spina bifida: 1. production by trypan blue; 2. autoradiography of the tissues primarily affected by trypan blue; 3. associated paralytic limb deformities; 4. associated primary renal tract deformities. Rattus norvegicus (Rodentia) LENHOFF, H. M. Ph.D., Prof. — Dept. of Developm. and Cell Biol., Univ. of California, IRVINE. Calif. 92664, U.S.A. • a Chemistry, biosynthesis, and topography of mesoglea. Hydra littoralis, H. pseudoligactis (Hydrozoa) b Movement and differentiation of interstitial cell. Hydra attenuata (Hydrozoa) LENICQUE, P. M. Dr.es Sci. — Lab. de Biol, des Invert. Marins, Museum Natl. d'Hist. Nat. 57 rue Cuvier, 75 PARIS Ve, France LENSKY, Y. Ph.D. — Bee Lab., Dept. of Entomol., Fac. of Agric, Hebrew Univ. of Jerusalem, P.O.Box 12, REHOVOTH, Israel a Changes in haemolymph proteins during metamorphosis. Apis mellifera var. ligustica (Hymenoptera) b Separation, characterization and identification of haemolymph proteins, in three castes. Apis mellifeca (Hymenoptera) c Distribution of blood antigens in fluid compartments and tissues of developing and adult animals, using immuno-chemical and biochemical analysis. Apis mellifera (Hymenoptera) d Moulting behaviour, resorption of moulting fluid and its protein composition during the larval-pupal transformation. Apis mellifera (Hymenoptera) e The ultrastructure of drone spermatozoa and their position in male and female storage organs. Apis mellifera (Hymenoptera) LENZ, W. Dr.med., Prof. — Inst fur Humangenetik, Westf. Wilhelms Univ., Vesaliusweg 12-14. 44 MONSTER, W.Germany a Analysis of thalidomide embryopathy in relation to time of intake. Homo sapiens (Primates) b Nosology and genetics of limb malformations (register for skeletal defects). Homo sapiens (Primates) LEONARD, A. Ph.D. — Lab. de Genet., Dept. de Radiobiol., Centre d'Etude de 1'Energie Nucleaire, 2400 MOL, Belgium a Study of chromosome aberrations induced by X-irradiation in u t e r o . Mus spec. (Rodentia) LEONE, V. M.D. — ■ Cat. di Embriol. e Morfol. Sperim., Univ. di Milano, Via Celoria 10, 20133 MILANO, Italy • LEONIENI, J. Dr. — Dept. of Histol. and Embryol., Acad, of Med., ul. Narutowicza 60, EODz, Poland a Comparative histology, histochemistry, and electron microscopy of the development, structure, and function of the subcommissural organ. (Mammalia), Homo sapiens (Primates) LEOPOLD, R. A. Ph.D. — USDA Metab. & Radiat Research Lab., State Univ. Station, FARGO, N.D. 58103, U.S.A. a Cytochemistry of developing reproductive structures. Musca domestica (Diptera) b In vivo and in vitro investigation of cuticle deposition during leg regeneration. Leucophaea maderae (Blattariae) LE PATOUREL, Mrs. C. M. B.Sc. — Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England a Protein synthesis during primary embryonic induction. Xenopus laevis (Anura) LEPORI, N.G Prof. — 1st. di Zool., Univ. di Sassari, Via Murroni 25, 07100 SASSARI, Italy a Origin of the asymmetry of the female gonad (blastoderm in vitro). (Aves) b Origin of asymmetrical heart development (blastoderm in vitro). Gallus spec, Anas spec. (Aves) c The inductor of the uro-genital organs. Gallus spec. (Aves), Rana spec, Triturus spec (Amphibia) LESCHER-MOUTOUfi, Miss F. — Lab. Souterrain du C.N.R.S., 09 MOULIS, France a Reproduction, life cycle, postembryonic development, and effect of temperature on development of hypogeous species. Speocyclops spp., Graeteriella spp. (Copepoda, Crustacea) LESH, Miss G. E. Ph.D. — Developm. Biol. Center, Case Western Reserve Univ., 2127 Cornell Rd., CLEVELAND, Ohio 44106, U.S.A. LESPINASSE. R. Dr. 3e cycle — Lab. de Zool.. Centre d'Orsay, Univ. Paris-Sud, 91 ORSAY, France a Cytology and genetics of the effects of supernumerary chromosomes. Locusta migratoria (Orthoptera) LESSEPS, R.J., SJ. Ph.D. — Dept. of Biol. Sci., Loyola Univ., NEW ORLEANS, La. 70118, U.S.A. a Ultrastructure of cell surface (embryonic liver, heart, neural retina, limb bud). Gallus domesticus (Aves) 108 LESTAGE, J. Dr.Biol.Anim. — Lab. de Biol. Anim. A, Univ. Bordeaux I, Av. des Facultes, 33 TALENCE, France a Etude experimentale de l'influence des facteurs nutritionnels sur la morphogenese du tube digestif et du pancreas. Rana dalmatina, Bufo bufo, Discoglossus pictus (Anura), Triturus helveticus, Salamandra salamandra (Urodela) LETOUR, Mrs. M. M.D. — Lab. d'Anat. et d'Embryol., Fac. de Med., Univ. libre de Bruxelles, 97 rue aux Laines, 1000 BRUXELLES, Belgium a Development of cleft lip. Mus musculus (Rodentia) LEVAK (SVAJGER), Mrs. B. D.Sc. —Inst, of Biol., Univ. of Zagreb, Salata 3, 41001 ZAGREB, Yugoslavia a Early differentiation; transplantation, in vitro culture. Rattus norvegicus (Rodentia) (with N. SKREB and A. SVAJGER) b Developmental capacities of tissues of the chorioallantoic membrane. Gallus domesticus (Aves) (with N. SKREB and A. SVAJGER) LEVENSON, G. E. Ph.D., D.D.S. — Dept. of Biol., Grad. School of Arts and Sci.; Lab. of Histol. and Embryol., School of Dental Med., Univ. of Pennsylvania, 4001 Spruce St., PHILADELPHIA, Pa. 19104, U.S.A. a Comparison of three types of embryonic cartilage when grown as monolayer cultures. Gallus domesticus (Aves) b Effect of ascorbic acid in medium on growth and differentiation of embryonic cartilage in monolayer culture. Gallus domesticus (Aves) c Histogenesis of embryonic liver: cell culture techniques, effects of metabolites on differentiation. Gallus domesticus (Aves) LEVI, C. Dr.es Sci., Prof. — Lab. de Biol, des Invert. Marins, Museum Natl. d'Hist. Nat., 57 rue Cuvier, 75 PARIS Ve, France LEVI-MONTALCINI, Miss R. M.D., Prof. — Dept. of Biol., Washington Univ., Skinker and Lindell Ave., ST.LOUIS, Mo. 63130, U.S.A. • a Growth control mechanisms in the sympathetic nervous system. b In vivo and in vitro analysis of the nervous system. Peciplaneta americana (Blattariae) c A technique to grow nerve and glia cells from explants of brain and ganglia in order to study their growth and differentiation under different experimental conditions. Peciplaneta americana (Blattariae) LEVINSON, H. Z. Ph.D., Prof. — c/o Zool. Inst, der Univ., Siesmayer Str. 70, 6 FRANK- FURT/M., W.Germany a Influence of nutrients, especially hormonomimetic substances, on metamorphosis and oogenesis. Dermestes spec, Trogoderma spec. (Coleoptera) , Calliphora spec. (Diptera) LEVIS, A. G. Dr.biol.sci. — Inst, of Gen. Biol., Univ. of Padova, Via Loredan 10, 35100 PADOVA, Italy ^ t , 0 c LEZZI, M. Ph.D. — Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonneggstr. 5, 8006 ZURICH, Switzerland a Effect of hormones and ions on gene function. Chironomidae (Diptera), Rattus spec. (Rodentia) c _Q LHEUREUX, E. — Serv. de Biol. Anim., Univ. des Sci. et Techn. de Lille, B.P. 3b, Vi VILLENEUVE-DASCQ, France a The provocation and development of supernumerary limbs, especially the role of nerves and tegument. Pleurodeles waltlii (Urodela) LHOTKA J F. Jr. M.D., Ph.D., Prof. — Dept. of Anat. Sci., Univ. of Oklahoma Med. Center, 801 NE 13th St., OKLAHOMA-City, Okla. 73104, U.S.A. a Localization of Ca and Fe in the developing embryo. Gallus domesticus (Aves), bus scrota (Artiodactyla) , Homo sapiens (Primates) b Histochemical localizations of polysaccharides in embryo and early fetus, with emphasis on vascular system. Homo sapiens (Primates) n rm LIANG, H. M. Ph.D., Prof. — « Dept. of Biomorphics, Natl. Defense Med. Center, KU.tfox 7432, TAIPEI 107, Taiwan, Republ. of China a Development of the pituitary gland. Rana catesbeiana (Anura) ..... ri LIERSE, W. Dr.med., Prof. — Abt. fur Neuroanat, Anat. Inst, der Univ., Martinistr. 52, 2 HAMBURG 20, W.Germany ... a Ultrastructure and histochemistry of brain and retina development. (Mammalia) b The biological aspect of neuroblast and glioblast following x-irradiation and hyperbaric oxygenation. (Mammalia) c The development of vascularization of the brain. (Mammalia) LILIEN J. E. Ph.D. — Dept. of Zool., Univ. of Wisconsin, 1117 W.Johnson bt, MADISON, Wis. 53706, U.S.A. „ a The turnover of cell surface glycoproteins in relation to developmental changes in cell surface structure. . TT . r , , nn^„-;t- LIMBORGH, J. van M.D., Prof. — Anat.-Embryol. Inst., Univ. of Amsterdam, Maunts- kade 61, AMSTERDAM-O., Netherlands a Sex differentiation. Anas boschas (Aves) b Morphogenesis of the skull. Gallus domesticus (Aves) . /n„.mn#Mi c Development of the harelip condition (descriptive studies). Homo sapiens ( Primates ) ^ LINDENMAYER, A. Ph.D., Prof. — Central Interfaculty, Univ. of Utrecht, Heidelberglaan 2, "De Uithof", UTRECHT, Netherlands a Computer simulation of the development of branching filaments. (Algae; Fungi) b The morphogenetic processes giving rise to phyllotactic patterns of the shoot apex. (Pteridophyta; Spermatophyta) c Developmental instructions for cellular interactions and divisions considered from the point of view of automata and language theory LINDSAY, D. T. Ph.D., Prof. — Dept. of Zool., Univ. of Georgia, A I HENS, ba. JUoUl, U.S.A. a Developmental regulation of chromosomal histone synthesis in the embryo. Strong ylo- centrotus purpuratus (Echinoidea) LINDSLEY D. L. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, F.U.Box 109, LA'jOLLA, Calif. 92037, U.S.A. a Genetic control of gametogenesis. Drosophila melanogaster (Diptera) LIOSNER L. D. Dr.biol.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Mechanisms controlling the restoration of inner organs. Rattus norvegicus, Mus musculus (Rodentia) LIOTTI, F. S. Dr., Prof. — 1st. di Biol. Gener., Univ. di Perugia, Via del Giochetto, 06100 PERUGIA, Italy a Sviluppo dei meccanismi eritropoietici durante la vita neonatale. Oryctolagus cumculus (Lagomorpha) LISSIA (FRAU), Mrs. A. M. Dr. — 1st. di Zool., Univ. di Sassari, Via Murroni 25, 07100 SASSARI, Italy a Gonadogenesis and sexual differentiation in hermaphroditic forms. Diplodus vulgaris, Boops salpa, B. boops, Lythognathus mormyrus (Sparidae, Teleostei) LIVERSAGE, R. A. Ph.D., Prof. — Ramsey Wright Zool. Labs., Dept. of Zool., Univ. of Toronto, 25 Harbord St., TORONTO 5, Ont, Canada a In vivo and in vitro studies on the influence of nerves and endocrines in regeneration. (Amphibia) LIWSKA, Miss J. mgr.Biol.Sci. — Dept. of Histol. and Embryol., Warsaw Agric. Univ., ul. Grochowska 272, WARSZAWA, Poland a Histochemistry of gonad differentiation. Gallus domesticus (Aves) LIZARDI, P. M. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. a Biochemistry of early development. Rana pipiens, Xenopus laevis (Anura), Bombyx mori and other spp. (Lepidoptera) (with D. D. BROWN, A. E. CLASON, K. SUGIMOTO and Y. SUZUKI) LOBO, J. F. Ph.D. — Cell Research Lab., Dept. of Zool., N.Wadia Coll., POONA-1, India a Alkaline phosphatase and mucopolysaccharides in eggs and larvae (histochemistry). Betta splendens (Teleostei) b Phospholipids and non-specific esterases in eggs and larvae (histochemistry). Rana tigrina (Anura) c Enzymes and mucopolysaccharides in the prothallus (histochemistry). Pteris aquilina (Filicinae) (with A. M. C. MENEZES) LOCCI, Miss P. Dr.biol.sci. — Inst, of Histol. and Gen. Embryol., Univ. of Perugia, Via del Giochetto, 06100 PERUGIA, Italy a Immunochemical and chromatographic research on transfer of albumen and yolk proteins into embryo. Gallus domesticus (Aves) LOCKE, M. Ph.D., Prof. — Dept. of Zool., Univ. of W.Ontario, LONDON 72, Ont, Canada • LOCKSHIN, R. A. Ph.D. — Dept. of Physiol., Univ. of Rochester, 260 Crittenden Blvd., ROCHESTER, N.Y. 14620, U.S.A. a Metamorphosis, especially biochemistry and neurophysiology of tissue breakdown. An- theraea polyphemus (Saturniidae), Manduca sexta (Sphingiidae, Lepidoptera) b Maintenance of isolated organs in vitro. Same species as a LOEFFLER, C. A. Ph.D. — Dept. of Zool., Univ. of Arkansas, FAYETTEVILLE, Ark. 72701, U.S.A. LOFBERG, J. E. Fil.lic. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Electron microscopy of the process of neurulation. Amby stoma mexicanum (Urodela), Ciona intestinalis, Clavelina lepadiformis (Ascidiacea) LOHMANN, K. Dr.rer.nat. — Zool. Inst, der Univ., Weyertal 1 19, 5 KOLN 41, W.Germany a Cytochemistry and biochemistry of gene amplification connected with differentiation processes in early development. Triturus vulgaris (Urodela) b Generation time and changes in the cell cycle of embryonic cells. Same species as a LOKHORST, Miss W. — < Lab. of Vet. Physiol., State Univ. of Utrecht, Alex. Numankade 93, UTRECHT, Netherlands LOMBARD (DES GOUTTES), Mrs. M. N. Dr.es Sci. — Lab. d'Histophysiol., Coll. de France, 4 av. Gordon Bennett, 75 PARIS XVIe, France 110 a Development of interactions between pituitary, pineal, and gonads in vitro. Mus musculus (Rodentia) b Induction of kidney tubules in metanephrogenetic mesenchyme. Mus musculus, Rattus norvegicus (Rodentia) c In vitro response of fetal Leydig cells to purified follicle stimulating hormone; loss of this response during postnatal development in relation with maturation of hypo- thalamic neurones controlling the secretion of interstitial cell stimulating hormone. Same species as b d Presence in the embryonic male gonad of As-3/3-hydroxysteroid dehydrogenase at the initial steps of testis morphogenesis; later apparition of this enzyme in the well differentia- ted ovary; possible effects of an inhibitor of the enzyme at different developmental stages. Same species as a LOMBARDO, F. Dr.Biol.Sci. — 1st. di Anat. Comp., Univ. di Modena, Via Berengario 14, 41100 MODENA, Italy a Regeneration of the retina in young animals. Carassius auratus (Teleostei) b Regeneration of neural retina. Lacerta muralis, L. viridis (Lacertilia) LONDON, J. M.Sc. — Dept. of Embryol. and Teratol., Tel-Hashomer Hosp., TEL-AVIV, Israel LONGENECKER, B. M. Ph.D. — Dept. of Zool., Fac. of Sci., Univ. of Alberta, EDMON- TON, Alta., Canada LONGO, F. J. Ph.D. — Dept. of Anat., Med. Units, Univ. of Tennessee, 800 Madison Ave., MEMPHIS, Tenn. 38103, U.S.A. a Effect of meiotic state at moment of insemination on pronuclear development and association (light and electron microscopy). Asterias forbesi (Asteroidea) , Spisula solidis- sima, Mytilus edulis (Lamellibranchia) b Effect of maternal cytoplasm on pronuclear development and association. Arbacia punctu- lata, Lytechinus variegatus (Echinoidea) c Effect of supernumerary male and female pronuclei on pronuclear development and association, i.e., investigation of heteroploidy, polyandry and polygyny. Spisula solidis- sima (Lamellibranchia) , Oryctolagus cuniculus (Lagomorpha), Mus musculus, Rattus norvegicus (Rodentia) LOOMIS, W. F., Jr. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a A biochemical and genetic investigation of the mechanisms of development. Dictyostelium discoideum (Acrasiales) LOPASHOV, G. V. Dr.biol.sci., Prof. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. • a Inductive interactions of the cells in differentiating retina by means of combinations of cells of the eye rudiment and the gastrula ectoderm. Rana temporaria (Anuta), Gallus domesticus (Aves) (with O. A. HOPERSKAYA) b Metaplastic potencies of embryonic and larval eye for lens and retina regeneration. Leuciscus bergi, Anoptichthys jordani (Teleostei) (with A. A. SOLOGUB) c Stimulation of metaplasia of the pure pigmented epithelium of adults into retina by means of agents from larval (or embryonic) retina. Mus musculus (Rodentia) (with A. A. SOLOGUB) d Determination of the site of formation of the falciform process by means of creation of additional choroid fissures. Leuciscus bergi (Teleostei) e The influence of fractionated homogenates of some differentiating tissues (retina, muscle) on the differentiation of future ectoderm in uncleaved eggs and early stages of cleavage. Triturus taeniatus (Urodela) , Xenopus laevis (Anura), Gallus domesticus (Aves) (with L. A. NIKITINA) LOS. }. A. M.D. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61. AMSTER- DAM-O., Netherlands a Light microscopy, electron microscopy, histochemistry, physiology, and experimental teratogenesis of heart development in the embryo. Gallus domesticus (Aves), Mus musculus (Rodentia) (with H. M. LAANE and J. A. ROEST) LOSEVA, Mrs. L. M. — Dept. of Embryol., Leningrad State Univ., Mendeleevsky St. 5, LENINGRAD V-164, U.S.S.R. a Oogenesis and embryonic development. Tealia crassicornis, Metridium senile, Bunodactis LOUVET, J.-P. Dr.Biol.anim. — Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facultes, 33 TALENCE, France a Recherches descriptives et experimentales sur la formation de la bandelette embryonnaire. Carausius spec. (Phasmida) b Neurogenese. Same species as a c Ultrastructure du developpement des pleuropodes. Same species as a LOVE, D. Ph.D. — Dept. of Anat., Developm. Biol. Center, Case Western Reserve Univ. 2119 Abington Rd., CLEVELAND, Ohio 44106, U.S.A. a Chemistry of developing muscle. Gallus domesticus (Aves) 111 b Endocrine regulation of carbohydrate and nucleic acid metabolism in embryonic muscle. \neaticua (Avea) ,*.«#*« o~ LOVTRUP (REIN). Mrs. H. Fil.lic. — Dept. of Zoophysiol.. Univ. of Uniea. b 901 87 UMEA. Sweden „.. ., . I Nuclear RNA metabolism during earlv cmbryogenesis. Lytechmus ranegatus { Hcnmoidea) L0VTRUP, S. Dr.Phil.. Prof. — Dept. of Zoophysiol.. Univ. of Umea. S 901 87 UMEA. a Permeabilitv and osmoregulation. Rana spp. (Anura) (with K. HANSSON MILD) b Cell transformation and cell differentiation. Rana spp. (Anura). Gallus domesticus (Ares) Oxygen uptake daring cmbrvogenesis. Tubifex spp. (Oligochaeta) (with U. LAND- LOWER. W. R. Ph.D. — Clin. Pharmacol. Res. Inst.. 2030 Haste St.. BERKELEY. Calif. 94704, U.S.A. „ , ,, T LOWERY. R. S. Ph.D. — Dept. of Biol.. Gty of London Polytechnic. 31 Jewry St.. LONDON EC3N 2EY. England a Relationship between DNA synthesis, mitosis, and differentiation during induction. Xcnopus laevis (Anura) r^Tmuxw LOY. J. B. Ph.D. — , Plant Sci. Dept.. Univ. of New Hampshire. Nesmith Hall. DURHAM. N.H. 03824. USA a Genetics and phvsiologv of sex differentiation. Cucumis melo (Cucurbitaceae) b Genetics and phvsiologv of dwarfism. Citrullus lanatus (Cucurbitaceae) LUCAS J S PhD. — Dept. of Zool.. School of Biol. Sci.. James Cook Univ. of North Queensland. P.O.Box 999. TOWNSYILLE. Qld. 4810. Australia a Development of larvae and effect of environmental factors. Scylla setrata (Portunidae), Pinr. tp. (Pmnotheridae, Decapoda. Crustacea) LUCEY E C A. B.Sc. —Research Film Unit. Inst, of Anim. Genet.. Univ. of Edinburgh. West Mains Rd.. EDINBURGH. EH9 3JN. Scotland. U.K. Film of normal development. Gallus domesticus (Aves) b Technique of in vitro culture of embryo: descriptive material covering first 72 hours of development in vitro. Gallus domesticus (Avea c Film showing nuclear transfer technique. (Amphibia) LUDWIG. K. S. Dr.med.. Prof. — Abt. Anat.. Med. Fak.. Rhein.-Westf. Techn. Hochschule. Alter Maastrichter Weg 1,51 AACHEN. W.Germany a Histochemistry of ripening ovarian follicles and the influence of steroid hormones. Rattus spec Mesocriceta Aurat::s i Rodentia), Homo sapiens (Primates) LUNDGREN. B. T. fil.kand. — Wenner-Gren Inst.. Norrtullsgatan 16. S-113 45 STOCK- HOLM. Sweden a Changes of cell contact during development (electron microscopy). (Echinoidea) b Distribution of exogenous biogenic amines in embryos (high resolution autoradiography). I Echinoidea) LURQUIN. P. F. J. Ph.D. — Dept. de Radiobiol.. Centre d'Etude de l'Energie Nudeaire, S.C.K.. 2400 MOL. Belgium a Uptake and fate of exogenous DNA. 1. in cultured explants from embryos. Gallus domes- ticus (Aves). 2. in embrvos perfused with DNA solutions. Rartus spec. (Rodentia) b Interaction between exogenous DNA and nuclei isolated from embrvonic liver: use of exogenous DNA as a substrate for nuclear DNA svnthesis. LUSE. Miss S. A. f MD. — Dept. of Anat.. Columbia Univ.. NEW YORK. N.Y. 10032. U.S.A. LUTWAK (MANN). Mrs. C. M.D.. Ph.D. — A.R.C. Unit of Reprod. Phvsiol. G Biochem.. Anim. Res. Station. 307 Huntingdon Rd.. CAMBRIDGE CB3 0JQ. England a Physiology and biochemistry of thea early embryo. Rattus rattus (Rodentia), Ori/ctolagus cuniculus (L^tgomorpha) b Teratologv. Same species as a LUTZ. H. Dr.es Sci.. Prof. — Lab. de Biol. Anim.. Univ. de Clermont. B.P. 45. 63 AUBIERE. France • a Developpement du blastoderme pendant les premieres heures de l'incubation. Anas spec. (A. b Culture in vitro du blastoderme. (Ares) (avec Mrs. Y. LUTZ-OSTERTAG) c Formation de l'entoblaste. (Avea d La polvembryonie experimentale: l'orientation des embryons. (Avea e Polvembrvo-.v.c experimentale. (Salmonidae. Teleostei) (avec Mrs. Y. LUTZ-OSTER- TAG) f Action des ultra-sons sur 1'embrvon et sur differents organes. Gallus spec. (Ares) (avec Mrs Y. LUTZ-OSTERTAG) g Action des pesticides sur le developpement de rembrvon. 'Ares) h Free-martinisme spontane. (Ares) (avec Mrs. Y. LUTZ-OSTERTAG) LUTZ (OSTERTAGK Mrs. Y. Dr.es Sci. — Lab. de Biol. Anim.. Univ. de Clermont. B.P. 45. 61 AUBI£RE. France B La genese de lasymmetrie du tractus genital et la regression des canaux de Muller par la m£thode d'explantations. Gallus spec. (A 112 b Role des hormones dans la differentiation primaire du sexe. Gallus spec, Coturnix coturnix (Aves) c Polyembryonie experimentale. (Salmonidae, Teleostei) (avec H. LUTZ) d Action des ultra-sons sur l'embryon et sur differents organes. Gallus spec. (Aves) (avec H. LUTZ) e Culture in vitro du blastoderme. (Aves) (avec H. LUTZ) f Free-martinisme spontane. (Aves) (avec H. LUTZ) g Hybridation. Anas spec. (Aves) h Action des pesticides sur le developpement de l'embryon. (Aves) LYMAN, H. Ph.D., Prof. — Dept. of Biol. Sci., State Univ. of New York at Stony Brook, STONY BROOK, N.Y. 11790, U.S.A. a Control mechanisms of chloroplast development and replication. Euglena gracilis (Eugleno- phyceae) LYNE, A. G. Ph.D. — Div. of Anim. Physiol., C.S.I.R.O., Ian Clunies Ross Anim. Res. Lab., P.O.Box 144, PARRAMATTA, N.S.W. 2150, Australia a Development of skin and hair. Trichosurus vulpecula, Perameles nasuta (Matsupialia) b Structure and development of epidermis, hair follicles, and associated glands. Ovis spec. (Artiodactyla) LYNN. W. G. Ph.D., Prof. — Biol. Dept., Grad. School of Arts and Sci., The Catholic Univ. of America, WASHINGTON, D.C. 20017, U.S.A. a Melanogenesis and melanin turnover. Xenopus laevis, Rana sylvatica, R. pipiens (Anura) b Skin development and ecdysis. Sceloporus occidentalis ( Lacertilia) , Chionactis occipitalis (Ophidia) LYONS, Miss K. M. Ph.D. — Zool. Dept., King's Coll., Strand, LONDON W.C.2, England LYSER (SHOUBY), Mrs. K. M. Ph.D., Prof. — Dept. of Biol. Sci., Hunter Coll., 695 Park Ave., Box 351, NEW YORK, N.Y. 10021, U.S.A. a Differentiation of the central nervous system; electron microscopy. Gallus domesticus (Aves) b Patterns of proliferation, and cytological and histological differentiation of the central nervous system in organ culture (light and electron microscopy). Gallus domesticus (Aves) LYTLE, Ch. F. Ph.D., Prof. — Dept. of Zool., North Carolina State Univ., Box 5577, RALEIGH, N.C. 27607, U.S.A. MACARAK, E. J. M.S. — Dept. of Histol. and Embryol., School of Dental Med., Univ. of Pennsylvania, 40th and Spruce Sts., PHILADELPHIA, Pa. 19104, U.S.A. a Causal analysis of the formation and control of the anterior-posterior axis of the unincubated blastoderm. Gallus domesticus (Aves) McCAFFERTY, R. E. Ph.D., Prof. — Dept. of Anat., Med. Center, West Virginia Univ., MORGANTOWN, W.Va. 26506, U.S.A. a Histochemistry and ultrastructure of the Harderian gland at pre- and postnatal stages. Rattus rattus (Rodentia), Sus scrofa (Artiodactyla) b Histochemistry of the lacrimal gland from early development through patient demise; normal and abnormal. Homo sapiens (Primates) McCALLION, D. J. Ph.D., Prof. — Dept. of Anat., Fac. of Med., McMaster Univ., HAMILTON, Ont., Canada • a Development of specific proteins in the central nervous system (fluorescence, electro- phoresis) . Gallus domesticus (Aves) b Heterogenous induction. Same species as a c Teratological and embryotoxic effects of tissue antibodies. Gallus domesticus (Aves), Rattus norvegicus, Mus musculus (Rodentia) McCLURE, T. Ph.D. — Dept. of Anat. Sci., Univ. of Oklahoma Med. Center, 801 NE 13th St., OKLAHOMA-City, Okla. 73104, U.S.A. a Developmental variations in the central nervous system. Papio spec, Macaca mulatta (Primates) McDEVITT, D. S. Ph.D. — . Dept. of Anim. Biol., School of Vet. Med., Univ. of Pennsyl- vania, 3800 Spruce St., PHILADELPHIA, Pa. 19104, U.S.A. a The soluble lens proteins (crystallins) in lens differentiation, as studied by column chromatography, electrophoresis, and immunofluorescence. Rana pipiens (Anura) MacDONALD, Mrs. E. L. Ph.D. — Dept. of Biol., Wilson Coll., CHAMBERSBURG, Pa. 17201, U.S.A. a Histology of eye, heart, and somite region, stages 21-46, photomicrography. Xenopus laevis (Anura) . b Cytological differences, especially number and location of mitochondria, associated with developmental potentialities of intestinal epithelium cells (light and electron microscopy). Rana pipiens (stage 25), Xenopus laevis (stage 46) (Anura) McGARRY, M. P. Ph.D. — Div. of Viral Oncol., Roswell Park Mem. Inst.. 666 Elm bt, BUFFALO, N.Y. 14203, U.S.A. a Humoral control of eosinophil granulocyte regeneration and proliferation in vivo and 113 in vitro, by using eosinophil-specific cell response to secundary challenge with antigen. Mas musculus (Rodentia) b Influence of Friend virus infection on developmental interrelationship between stem- precursor cells and the inductive stroma of hemopoietic tissues; determination of target cell (s). Same species as a . McGAUGHEY R. W. Ph.D. — Dept. of Molec, Cell, and Developm. Biol., Univ. ot Colorado, BOULDER, Colo. 80302, U.S.A. „T, rtrT,TTr, , ' McGOVERN, P. T. — Dept. of Anat., Royal Vet. Coll., LONDON NW1 OTU, England a Immunological aspects of foetal-maternal relationships exemplified by hybrid gestation. Capra hiccus x Ovis aries (Actiodactyla) (with J. L. HANCOCK) MACHA, J. RNDr. — Dept. of Zool., Charles Univ., Vinicna 7, PRAHA 2, Czechoslovakia a Proteins and antigens in early development. (Amphibia) (with A. ROMANOVSK? and T. PALECEK) McKENZIE, J. M.D. — Dept. of Developm. Biol., Marischal Coll., Univ. of Aberdeen, ABERDEEN AB9 IAS, Scotland, U.K. a The metabolic characteristics of different tissues in the early embryo. Gallus gallus (Aves) b The effects of exogenous RNA on the early embryo and cell cultures. Same species as a c Myoblast/fibroblast relationships in monolayer cultures. Same species as a d The state of cell differentiation in early embryos. Same species as a McKIEL, G. D. M.A. — Dept. of Zool. and Comp. Anat., Univ. Coll. London, Gower St., LONDON W.C.I, England a Contact inhibition in synchronous populations of heart fibroblasts. Gallus, gallus (Aves) McKINNELL, R. G. Ph.D., Prof. — Dept. of Zool., Coll. of Biol. Sci., Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. a Developmental potentialities of transplanted tumor nuclei obtained from adults. Rana pipiens (Anura) b Herpes-type virus transformation of mesonephric cells of triploids. Same species as a MACKLIN, M. R. Ph.D. — Dept. of Biomed. Engin., Case Western Reserve Univ., CLEVE- LAND, Ohio 44106, U.S.A. a The effects of the inorganic ionic environment, both extra-cellular and intra-cellular, on cell differentiation. Hydra spec. (Hydrozoa) b Onset of electrical activity in embryos. Xenopus laevis (Anura) McLAREN, Miss A. Ph.D. — . Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. a Influence of genotype and early embryonic environment upon development, investigated by in vitro cultivation of early embryos. Mus musculus (Rodentia) b Blastocyst-uterine interactions during the early stages of implantation, and during physiological and experimental delay of implantation. Same species as a c Sexual differentiation and origin of coat colour patterns in experimental chimaeras formed from fusion of embryos of different genotype. Same species as a d Growth and differentiation of trophoblast in vivo and in vitro. Same species as a McLAUGHLIN, K. C. B.S. — Dept. of Obstet. and Gynecol., Div. of Reprod. Biol., Univ. of Virginia Med. School, Box 179, CHARLOTTESVILLE, Va. 22903, U.S.A. a Mechanisms concerned with capacitation of spermatozoa. Oryctolagus cuniculus (Lago- morpha), Felis catus (Carnivora) McLEAN, B. G. B.S. — Dept. of Zool., Univ. of British Columbia, VANCOUVER 8, B.C., Canada a In vitro differentiation of 6-day lens epithelium: biochemical (protein synthesis) and ultrastructural analysis. Gallus domesticus (Aves) (with C. V. FINNEGAN) MacLEAN, N. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON S09 5NH, England a Developmental changes in haemoglobin, and the control of its synthesis. Xenopus laevis (Anura), Mus musculus, Rattus spec. (Rodentia), Gallus domesticus (Aves) MacMILLAN, E. W. Dr. — Dept. of Anat., Univ. of Liverpool, P.O.Box 147, LIVERPOOL L69 3BX, England a The rate of transport of spermatozoa through the ductus epididymidis. Rattus spec. (Rodentia) MacMILLAN, Miss F. E. A.B. — Pacific Marine Station, Univ. of the Pacific, DILLON BEACH, Calif. 94929, U.S.A. a Larval development under laboratory conditions from zoea through first adult stages. Pachycheles rudis, P. pubescens, Petrolisthes cinctipes, P. eriomerus, P. manimaculis, Pagurus samuelis, P. setosus (Decapoda, Crustacea) McNUTT, C. W. Ph.D., Prof. — Dept. of Anat., The Univ. of Texas Med. School at San Antonio, 7703 Floyd Curl Drive, SAN ANTONIO, Tex. 78229, U.S.A. a Developmental genetics of a tail-labyrinthine mutant (pr). Mus musculus (Rodentia) b Development and pathological progression of a new neuromuscular mutant. Mus musculus (Rodentia) MACOTTA. V. M.D. — Dept. of Anat., Univ. of Turin, Corso M.d'Azeglio 52, 10126 TORINO, Italy 114 MacRAE, Mrs. E. J. KRUGELIS Ph.D., Prof. — Dept. of Anat., Coll. of Med., Univ of Illinois, 1853 W.Polk St., P.O.Box 6998, CHICAGO, 111. 60680, U.S.A. a Electron microscopy. Dugesia tigrina, Notoplana acticola (Turbellaria) b Histones in erythropoiesis. Gallus domesticus (Aves) c Developmental morphology of smooth muscle. (Vertebrata) McWHINNIE, Miss D. J. Ph.D. — Dept. of Biol. Sci., De Paul Univ., 1036 W.Belden Ave CHICAGO, 111. 60614, U.S.A. a Biochemistry of embryonic bone with particular reference to metabolic pathways, enzyme systems, and hormone effects. Gallus domesticus (Aves), Rana pipiens (Anura) MADERSON, P. F. A. Ph.D., Prof. — Dept. of Biol., Brooklyn Coll., Bedford Ave. & Ave H, NEW YORK, Brooklyn, N.Y. 11210, U.S.A. a Influence of environmental factors and hormones on epidermal turnover, in vitro and in vivo. Iguana iguana, Anolis carolinensis, Dipsosaurus dorsalis, Gekko gecko, Coleonyx variegatus (Lacertilia), Elaphe obsoleta (Ophidia) b Wound healing. Same species as a c Tail regeneration with reference to epidermal replacement. Iguana iguana, Anolis carolinen- sis, Dipsosaurus dorsalis, Gekko gecko, Coleonyx variegatus (Lacertilia) MADHAVAN, K. Ph.D. — Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. — Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonneggstr. 5, 8006 ZURICH, Switzerland a Effects of hormones and analogues on development (biochemistry, cytology). Drosophila melanogaster and other spp. (Insecta and other Arthropoda) MADJEREK, Z. S. Dr., Prof. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., Netherlands a Experimental studies on genito-urinary tract development. Mus spec. (Rodentia) MAEDA (KIBATA), Mrs. M. B.Sc. — Dept. of Biol., Coll. of Gen. Educ, Osaka Univ., Toyonaka, OSAKA, 560 Japan a Effect of light on morphogenesis. Chara spec, Nitella spec. (Characeae) b Effects of far-red and red illumination on seed germination. Lactuca sativa (Compositae) MAGGIO, Miss R. Ph.D., Prof. — 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, Italy • MAHOWALD, A. P. Ph.D. — Inst, for Cancer Research, 7701 Burholme Ave., PHILA- DELPHIA, Pa. 19111, U.S.A. a Ultrastructure of embryos: wild-type and genetic mutants. Drosophila melanogaster, D. hydei, D. virilis, D. immigrans, D. willistoni (Diptera) b Isolation and chemistry of polar granules. Drosophila melanogaster (Diptera) MAIBENCO, Miss H. C. Ph.D., Prof. — Dept. of Anat., Univ. of Illinois, P.O.Box 6998. CHICAGO. 111. 60680, U.S.A. a Nidation. Rattus rattus (Rodentia) b Origin, function, and fate of decidual cells (autoradiography). Rattus rattus (Rodentia) c Development of the early embryo (frozen-dried material, autoradiography). Rattus rattus (Rodentia) MAIRY, Mrs. M. Lic.es Sci. — Lab. de Biochim., Univ. de Liege, 17 Place Delcour, B-4000 LIEGE, Belgium a Mecanismes biochimiques de l'oogenese. Xenopus laevis (Anura) MAISONHAUTE, CI. — Lab. de Zool., Centre d'Orsay, Univ. Paris-Sud, 91 ORSAY, France a Effects of actinomycin injected into the egg. Leptinotarsa decemlineata (Coleoptera) MAJORCA (MONTELEONE). Mrs. A. D.Sci. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 PALERMO, Italy a Mitochondria in eggs. (Polychaeta; Echinodermata) MAKINEN (LONNBERG), Mrs. P.-L. M.S. — Dept. of Forensic Med., Univ. of Turku. Kiinamyllynkatu 10, 20520 TURKU 52, Finland a Biochemical characterization of enzymes appearing in early wound healing. Rattus spec, Cavia spec. (Rodentia) (with J. RAEKALLIO) b Histochemical studies on bone regeneration (fracture healing). Rattus spec, Cavia spec. (Rodentia) (with J. RAEKALLIO) c Enzyme histochemistry of skin transplants (allografts and homografts). Rattus spec, Cavia spec (Rodentia) (with J. RAEKALLIO) d Biochemistry of vascular response in experimental wound healing. Rattus spec, Cavia spec. (Rodentia) (with J. RAEKALLIO) MAKINO, S. D.Sc, Prof. (Emer.) — Chromosome Research Unit, Fac of Sci., Hokkaido Univ., North 10, West 8, SAPPORO, 060 Japan a Chromosome aberrations in patients with congenital disorders, with special regard to the relationship between karyological features and disease states. Homo sapiens (Primates) b Chromosome studies in spontaneous and induced abortions. Homo sapiens (Primates) c Virus-induced chromosome aberrations with special regard to teratogenesis and carcino- genesis. Homo sapiens (Primates) MAKINODAN, T. — Biol. Div., Oak Ridge Natl. Lab., P.O. Box Y. OAK RIDGE, Term. 37830, U.S.A. a Ontogeny and senescence of the immune system. Mus musculus (Rodentia) MALAPRADE. Miss D. — Lab. d'Embryol., Univ. de Nancy I, 31 rue Lionnois, 54 NANCY, France a Les voies neurosecretoires hypothalamo-hypophysaires au cours de l'embryogenese et de la periode neonatale. Gallus gallus (Aves) ...,„, „,. ,-, ,.„ n d ia MALET. P. M.D. — Lab. d'Histol.-Embryol., Fac. de Med., Bd. Winston Churchill, B.P. 38, 63 CLERMONT-FERRAND, France a Cytology of neonatal liver; differentiation of intercellular junctions, characters of micro- bodies; histochemical differentiation. Mus musculus (Rodentia) (with R. POURHADI and J. P. TURCHINI) r r , _ , . J _ , _, MALEYVAR, R. P. M.Sc. — Dept. of Biol., City of London Polytechnic, 31 Jewry bt., LONDON EC3N 2EY, England a Relationship between DNA synthesis and differentiation with particular reference to the lens. Xenopus laevis (Arnica) i_ c « MALIKOVA Mrs. I. G. — Dept. of Embryol., Leningrad State Univ., Mendeleevsky bt. 5, LENINGRAD V-164, U.S.S.R. a Restoration processes at different stages of ontogenesis. Dinophilus spec. (Arcniannelida), Pygospio elegans (Polychaeta) MALININA Mrs. N. A. Cand.biol.sci. — Phenogenet. Lab., Inst, of Gen. Genet., Acad, ot Sci. of the U.S.S.R., 7(1) Profsojuznaya St., MOSCOW B-133, U.S.S.R. a Developmental study of mutant gene effects on skeletal abnormalities. Mus musculus (Rodentia) MALIOVANOVA, Mrs. S. D. — Inst, of Developm. Biol., Acad, of Sci. of the U.b.b.K., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Regeneration of myocardium. Oryctolagus cuniculus (Lagomorpha) MALPOIX (HIGGINS), Mrs. P. M. Ph.D. — Lab. de Cytol. et d'Embyol. Molec, Univ. libre de Bruxelles, 67 rue des Chevaux, 1640 RHODE-ST-GENESE, Belgium a In vitro study of the synthesis and structure of nuclear and cytoplasmic proteins (including chromatin and haemoglobin) in embryonic liver: 1. influence of erythropoietin and other hormones; 2. effect of bromodeoxyuridine; 3. effect of X-irradiation. Mus musculus (Rodentia) b Effect of X-irradiation on RNA polymerase activity in haematopoietic tissue. Mus musculus (Rodentia) MANASEK, F. J. D.M.D. — The Children's Hosp. Med. Center, 300 Longwood Ave., BOSTON, Mass. 02115, U.S.A. a Mesenchymal and epithelial cell movements in morphogenesis (metabolic inhibitors, electron microscopy) . Gallus domesticus (Aves) b Interactions between cells and extracellular matrix at very early stages of development (electron microscopy). Same species as a MANCINO, G. Dr.Biol.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 56100 PISA, Italy • a Development and functionality of the gonads in hybrids. (Urodela) b Lampbrush chromosomes. (Cephalopoda; Urodela) c Cytology. (Opisthobranchia, Gastropoda) MANCUSO, V. D.Sci., Prof. — 1st. di Biol. Gener., Univ. di Palermo, Via Divisi 83, 90133 PALERMO, Italy a The distribution of enzymes and other substances in the germ during development. Tubifex spec. (Oligochaeta) , (Mollusca; Ascidiacea) b Ultrastructure of eggs during development. Same species as a c Ultrastructural changes during oogenesis. Same species as a MANDARON, P. M. Lic.es Sci. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Mechanisms of evagination and differentiation of imaginal discs in different culture media. Drosophila melanogaster (Dipteca) MANDEL, P. Prof. — Centre de Neurochimie, C.N.R.S., 11 rue Humann, 67 STRAS- BOURG. France MANELLI, H. Dr.nat.hist., Dr.biol.sci. — 1st. di Zool. dell'Univ., Viale Regina Elena 324, (al Policlinico), 00100 ROMA. Italy MANFREDI ROMANINI, Mrs. M. G. Ph.D., Prof. — Dept. of Histol. and Embryo).., Univ. of Pavia, Piazza Botta 10, 27100 PAVIA, Italy a Histochemical analysis of catecholamines and 5-HT (5-hydroxytryptamine) during the development of central nervous system. Rattus norvegicus (Rodentia) b Histophotometric quantitative determination of nuclear DNA (Feulgen reaction) during the development of central nervous system. Same species as a MANGIA, F. Dr.biol.sci. — 1st. di Zool., dell'Univ., Viale Regina Elena 324, (al Policlinico). 00100 ROMA, Italy MAfiKOWSKA, E. Mgr. — Lab. of Embryol., Dept. of Obstet. and Gynecol. II, Med. School, ul.Karowa 2, WARSZAWA 40, Poland a The effect of embryotoxic and teratogenic agents on embryonic development, especially streptococcal alpha-toxins and insecticides. Mus musculus, Rattus spec. (Rodentia) 116 MANN, T. M.D., Ph.D., D.Sc, Prof. — A.R.C. Unit of Reprod. Physiol. & Biochem., Anim. Res. Station, 307 Huntingdon Rd., CAMBRIDGE CB3 OJQ, England a Biochemistry of the male reproductive organs and semen. (Mammalia) b Comparative biochemistry of reproduction. (Mollusca; Elasmobranchii) , various large domestic, small laboratory, and wild animals (Mammalia) MANNER, H. W. Ph.D., Prof. — Dept. of Biol., Saint Louis Univ., 1504 South Grand Blvd., ST. LOUIS, Mo. 63104, U.S.A. a Organogenesis of carpals in regenerating forelimbs. Triturus viridescens (Urodela) b The role of the radius in carpal formation in regenerating forelimbs. Ambystoma opacum (Urodela) c Time and place of action of pregastrular genes. Rana pipiens (Anuta) d The action of developmental genes in the pre-neurula embryo. Rana pipiens (Anura) e The role of the endocrines in regenerating metamorphic animals. Triturus viridescens (Urodela) MANNING, Miss M.J. Ph.D. — Dept. of Zool., Univ. of Hull, HULL HU6 7RX, England a Maturation of immunocompetence correlated with development of the lymphoid tissues: removal of the thymus and exposure to antigenic stimulation (allografts, protein antigens etc.) at different larval development stages; in vitro studies of the immunological capabilities of lymphocytes. Xenopus laevis (Anura) MANO, Y. Ph.D., M.D., Prof. — Dept. of Biochem., Fac. of Med., Univ. of Tokyo, Hongo, 7-3-1, Bunkyo-ku, TOKYO, 113 Japan a Molecular mechanisms of cell cycle in macromolecular synthesis. Hemicentrotus pulchet- rimus, Pseudocentrotus depressus, Anthocidaris crassispina, Strong ylocentrotus nudus (Echinoidea) b Macromolecular metabolism in early development. Hemicentrotus pulcherrimus, Pseudo- centrotus depressus, Anthocidaris crassispina, Strong ylocentrotus nudus (Echinoidea), Artemia salina (Anostraca, Crustacea) MANSUETO (BONACCORSO), Mrs. C. Dr.nat.sci., Prof. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 PALERMO, Italy a Investigations on the embryonic development by use of radio-isotopes. (Ascidiacea) b Incorporation of actinomycin D-H3 in the egg. (Ascidiacea) c Action of actinomycin D on embryonic development. Sahellaria spec. (Polychaeta) MANUKHIN, B. N. Dr.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Catecholamines and their receptors in embryonic development. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) MARAMOROSCH, K. Dr. — Boyce Thompson Inst, of Plant Res., 1086 N.Broadway, YONKERS, N.Y. 10701, U.S.A. • MARAUD, R. Dr.en Med., Dr.es Sci., Prof. — Lab. de Biol, et d'Histol., Univ. de Bordeaux II, Place de la Victoire, 33 BORDEAUX, France a Differenciation sexuelle. (Aves) b Physiologie de la thyroide embryonnaire. (Aves) MARCEL, R. — Serv. de Biol. Anim., Univ. des Sci. et Techn. de Lille, B.P. 36, 59 VILLE- NEUVE-D'ASCQ, France a Etude in vivo et in vitro dela morphogenese au cours de la regeneration. Eisenia foetida (Oligochaeta) b Biochemistry of trophic factor and specific inhibition of cephalic and caudal regeneration. Same species as a MARCHAND, C. R. Lic.es Sci. — Lab. de Zool., Fac. des Sci., Place Marechal Leclerc, 25 BESANCON, France a Evolution histophysiologique de l'appareil reproducteur au cours de l'ontogenese chez des hybrides steriles. Cairina moschata x Anas platyvhynchos (Aves) (avec L. GOMOT) MARCHISIO, P. C. M.D. — 1st. di Istol. ed Embriol. Gener., Univ. di Torino, Corso Massimo d'Azeglio 52, 10126 TORINO, Italy a Chromatography and electrophoresis of proteins in the optic lobes of eye deprived animals during pre- and postnatal development. Gallus domesticus (Aves) b The biochemical factors involved in the control of optic centre differentiation, with special attention to the role of retinal fibres (experimental investigation) . Gallus domesticus (Aves) c The axoplasmic transport of proteins along the optic pathway of embryos and the effects of flow inhibitors on the morphological and chemical differentiation of tectum opticum neurons. Gallus domesticus (Aves) d The synthesis of the neurotubular protein during the development of the central nervous system and its relationship with other parameters of maturation in nerve cells. Gallus domesticus (Aves) MARCHOK, Miss A. Ph.D. — Dept. of Anat., School of Med., Univ. of Connecticut. FARMINGTON, Conn. 06032, U.S.A. a Regulation of RNA synthesis during embryonic development, particularly the control of RNA polymerase activity and template activity of chromatin from muscle nuclei. Gallus domesticus (Aves) 117 MARCUS G. J. Ph.D. — Dept. of Popul. Dynamics, Sch. of Hyg. and Publ. Health, Johns Hopkins Univ., 615 N.Wolfe St.. BALTIMORE, Md. 21205, U.S.A. a Endocrine regulation of uterine differentiation and embryo-uterine interaction. (Mammalia) b Regulation of development during early cleavage. Mus musculus (Rodentia) c Regulation of blastocyst metabolism by hormones and by uterine secretions. Rattus cattus, Mus musculus (Rodentia) MARGOLIS, G. M.D., Prof. — Dept. of Pathol., Dartmouth Med. School, HANOVER, N.H. 03755, U.S.A. a Virus-cell interaction, replication and differentiation. Cricetus auratus, Rattus natalensis, R. noruegicus, Mus musculus (Rodentia), Felis domestica, Mustela putorius furo (Carni- vora) b Cerebellar hypoplasia induced by postnatal virus infections. Same species as a c Hydrocephalus induced by postnatal virus infections. Cricetus auratus, Rattus noruegicus, Mus musculus (Rodentia) MARIANO, Miss M. I. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S.M. de TUCUMAN, Argentina a Nuclear transplantation (early stages until neurulation) : 1. haploid and diploid nuclei; 2. electrophoretic analysis of proteins. Bufo atenarum (Anura) MARIN (LEWIN), Mrs. L. Dr.es Sci. — Lab. d'Embryol. Exper. du Coll. de France et du C.N.R.S., 1 1 Place M.Berthelot, 75 PARIS Ve, France • a Morphogenese du poumon: 1. determinisme de la maturation des structures specif iques de l'epithelium (ultrastructure) ; 2. evolution du metabolisme du tissu pulmonaire (biosynthese des lipides, activite enzymatique) ; 3. influence de mesenchymes heterologuessur revolution ultrastructurale de l'epithelium. Gallus gallus (Aves) (avec F. DAMERON) MARIN-PADILLA, M. M.D. — Dept. of Pathol., Dartmouth Med. School, HANOVER, N.H. 03755, U.S.A. a Golgi study of cerebral cortex development: primordial, granular, and associative neo- cortical organization. Felis domestica (Carnivoca) MARINI, Miss M. Dr.Biol.Sci. — 1st. di Anat. Comp., Univ. di Modena, Via Berengario 14, 41100 MODENA, Italy a Growth and differentiation of the subcommissural organ. (Teleostei) b The differentiation of Rohon-Beard cells in normal development and in regeneration of the nervous system. (Amphibia) c The glycogen pattern in the developing nervous system. (Amphibia) d Differentiation of the dorsal cells in the spinal cord. (Teleostei) MARINKOVICH, V. A. M.D. — Dept. of Pediat., Stanford Univ., 300 Pasteur Drive, STANFORD, Calif. 94305, U.S.A. MARK, R. F. M.Med.Sc, Doct. Ill — Dept. of Physiol., Monash Univ., CLAYTON, Vict. 3168, Australia a Regenerating motor nerves and reinnervating muscle (descriptive, histochemical, experi- mental and electrophysiological). Astronotus ocellatus (Cichlidae), Carassius carassius (Cyprinidae, Teleostei), Amby stoma spec. (Urodela) MARKELOVA, Mrs. I. W. Cand.med.sci. — Inst, of Med. Genet., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a The evaluation of DNA synthesis in different cell types of human ovary transplanted into mouse spleen. Mus musculus (Rodentia), Homo sapiens (Primates) MARKENS, I. S. Drs. — Orthodontic Dept., Dental School, State Univ. of Utrecht, Jutfaseweg 7, UTRECHT, Netherlands a Location of the coronal suture in the fetus. Rattus norvegicus (Rodentia) MARKERT, C. L. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. • a Gametogenesis and chromosome behavior. Rana pipiens (Anura) b Gamete maturation, fertilization, and early development. Mus musculus (Rodentia) c Multiplicity of homologous genes. Various spp. (Pisces) d Ontogeny of isozymic patterns. Mus musculus (Rodentia), various spp. (Pisces) e Developmental genetics. Various spp. (Pisces) MARKMAN, B. Fil.lic. — Dept. of Zoophysiol., Univ. of Goteborg. GOTEBORG, Sweden MARKOVA. Mrs. L. N. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a The use of enzyme preparations for the analysis of the role of acetylcholine and biogenic monoamines in early embryogenesis. Strong ylocentrotus nudus, Patiria pectinifera (Echinoidea) (with G. A. BUZNIKOV) MARKS, P. A. Prof. — Dept. of Human Genet, and Developm., Coll. of Phys. and Surg., Columbia Univ.. 630 W. 168th St., NEW YORK, N.Y. 10032, U.S.A. • MARKWALD, R. R. Ph.D. — Dept. of Anat., Med. Univ. of South Carolina, 80 Barre St., CHARLESTON, S.C. 29401, U.S.A. a Teratogenic influences of a variety of known teratogens upon heart development. Rattus norvegicus (Rodentia) b Influence of sex hormones upon sexual maturation of the developing brain. Rattus norve- gicus (Rodentia) 118 MARRARO (CARNAZZA), Mrs. M. L. — 1st. di Anat. Umana Norm., 2a Catt, Univ. di Catania, Via Biblioteca 4, 95124 CATANIA, Italy a Mode of formation of the concentric bodies (epithelial pearls) during chorioallantoic membrane grafts. Gallus domesticus (Aves) b Liver homoplastic graft in chorioallantoic membrane. Same species as a c Structural changes of allantoic membrane epithelium submitted to the action of different agents. Same species as a d Pineal gland homoplastic graft in chorioallantoic membrane. Same species as a MARRE, E. — 1st. di Sci. Bot. dell'Univ., Cat. di Fisiol. Vegetale, Via Giuseppe Colombo 60, 20133 MILANO, Italy • a The mechanisms of the metabolic changes characterizing the transition from meristematic growth to specialized cell functions. (Saccharomycetates; Spermatophyta) MARSHAK, Miss T. L. — Lab. of Developm. Cytogenet, Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., 26 Vavilov St., MOSCOW 117133, U.S.S.R. a Differentiation and growth of the pigment epithelium of the retina, especially DNA synthesis, cell division, and mechanisms of nuclear polyploidization. Rattus noruegicus (Rodentia) (with O. G. STROEVA) MARSK, L. M.D. — Lab. of Teratol., Karolinska Inst., S-104 01 STOCKHOLM 60, Sweden a Perinatal vascular changes in the digestive system. Rattus noruegicus (Rodentia) b Transplantation of fertilized ova. Mus musculus (Rodentia) MARSLAND, D. A. Ph.D., Prof. — Marine Biol. Lab., Box 665, WOODS HOLE, Mass. 02543, U.S.A. MARTHY, H.-J. Ph.D. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Implantation and explantation of organ anlagen. Loligo vulgaris (Cephalopoda) b Investigations on induction. Same species as a c Determination and regulative capacity of the eye anlagen in stages VI-XII (Naeff) (auto- and allotransplants, organ culture). Same species as a MARTIN, A. H. Ph.D. — Dept. of Anat., Bardeen Med. Labs., Univ. of Wisconsin, MADISON, Wis. 53706, U.S.A. a Development, morphology, and histology of the central nervous system (light microscopy). Gallus domesticus (Aves), Mus musculus (Rodentia) b Teratogenic effect of various techniques and agents upon the developing embryo. Same species as a MARTIN, Ch. B., Jr. M.D., Prof. — Dept. of Obstet. and Gynecol., Univ. of S. California, 1200 North State St., LOS ANGELES, Calif. 90033, U.S.A. a Anatomy and radiology of placental circulation. Macaca mulatta, Homo sapiens (Primates) b Physiology of the uteroplacental and umbilical circulations. Macaca mulatta (Primates) MARTIN (FORGET), Mrs. C. S. Lic.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Mesonephros differentiation: culture of Wolffian duct with different mesenchymes. Gallus domesticus (Aves) b Experimental morphogenesis of embryonic kidney. Gallus gallus (Aves) (with Y. CROI- SILLE and M. GUMPEL) MARTIN, R. P. Dipl. dEtud. Approf. — Lab. d'Embryol., Unite de Sci., Univ. de Caen, 14 CAEN, France a Renouvellement et differenciation des cellules de l'epithelium intestinal. Ambystoma mexicanum (Urodela) MARTINEK. J. M.D. — Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4, PRAGUE 2, Czechoslovakia a Cytochemistry and electron microscopy of ova. Rattus spec. (Rodentia), Homo sapiens (Primates) b Fine structure of the blastocyst; the role of nucleoli in early differentiation of blastodermic vesicle. Rattus spec. (Rodentia), Homo sapiens (Primates) c Ultrastructure and histochemistry of ovarium differentiation; development of ovum and follicle cells. Rattus spec. (Rodentia) MARTINET, Mrs. M. Dr.es Sci. — Lab. d'Histol.-Embryol. B, Fac. de Med., 45 rue des Sts.Peres, 75 PARIS Vie, France a Influence teratogene des infections Rickettsiennes. Rattus rattus (Rodentia) MARTINOVITCH, P. N. Ph.D. — Dept. of Exp. Histol. and Organ Cult., Inst, of Nuclear Sci. "Boris Kidric", Virica, P.O.Box 522, BEOGRAD, Yugoslavia • MARTY, R. J. L. Dr.en Med., Dr.es Sci., Prof. — Lab. de Neurophysiol., Fac. des Sci., Univ. de Montpellier, Place Eugene Bataillon, 34 MONTPELLIER, France a Neurophysiologie. 1. Maturation perinatale du systeme auditif (stimulation electrique de la cochlee; stimulation tonale). 2. Maturation postnatale du systeme vestibulaire. Felis catus (Carnivora) b Neuroanatomie. 1. Developpement du thalamus (etude radio-autographique) . 2. Maturation perinatale du cortex cerebral. 3. Proliferation et migrations postnatales de la nevroglie. Rattus noruegicus, Felis catus (Mammalia) 119 MASCARENHAS J. P. Ph.D., Prof. — Dept. of Biol. Sci., State Univ. of New York. 1400 Washington Ave., ALBANY, N.Y. 12203, U.S.A. • a Protein and RNA synthesis in the control of pollen tube development. Tradescantia paludosa (Commelinaceae) b Gene activity in pollen development. Tradescantia paludosa (Commehnacea), Z,ea mays MASLOW, D. E. Ph.D. — Dept. of Exper. Pathol., Roswell Park Mem. Inst., BUFFALO, N.Y. 14203, U.S.A. a The effect of changes in the cell periphery caused by enzymatic treatments as determined by electrophoretic mobility on the formation of aggregates of disaggregated embryonic cells of different tissue origins. Gallus domesticus (Aves) b The adhesion of cells to different cellular and non-cellular substrates. Mus spec. (Rodentia), Homo sapiens (Primates) c The release of material associated with cell adhesion. Same species as a d Differential adhesion in the morphogenesis of the limb bud. Gallus domesticus (Aves) MASNER, P. RNDr., CSc. — Dept. of Developm. Morphol., Inst, of Entomol., Czechoslov. Acad, of Sci., 7 Vinicna, PR AH A 2, Czechoslovakia MASSART. C. M.D., Prof. — 1st. di Anat. e Istoembriol., Univ. di Pisa. Via Roma 55, 56100 PISA, Italy _ _, „„ . . MASTROLIA, Miss L. Dr.biol.sci. — 1st. di Zool. dell'Univ., Viale Regina Elena 324, (al Policlinico), 00100 ROMA, Italy MASUDA. H. D.Sc. — Dept. of Biol., Konan Univ., Okamoto, Motoyama-cho, Higashinada- MASUI Y. Ph.D., Prof. — Dept. of Zool., Univ. of Toronto, 25 Harbord St., TORONTO 5, Ont., CANADA tt v , • MATEJKA, M. Dr.Med., CSc. — Inst, of Histol. and Embryol., Charles Univ., Karlovarska 48, PLZEfi, Czechoslovakia a The morphogenesis of the genital organs from the standpoint of evolutionary morphology. (Amniota, incl. Homo sapiens) r**.r*r* MATHEWS, M. B. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, CHICAGO, 111. 60637, U.S.A. MATSUMOTO, J. D.Sc. — Dept. of Biol., Keio Univ., YOKOHAMA-Hiyoshi, Japan a Changes of enzymatic composition during pigment cell differentiation. Carassius auratus, Xiphophorus helleri (Teleostei), Xenopus laevis (Anura) b Morphological and cytochemical characterization of phaeomelanosomes. Mus musculus (Rodentia) MATSUNAGA, Miss Y. — , Embryol. Sect., Dept. of Biol., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa-machi, Setagaya-ku, TOKYO 158, Japan a Carbohydrate metabolism of the embryo. Anthocidaris spec, Pseudocentrotus spec, Hemicentrotus spec. (Echinoidea) MATTHEWS, R. W. B.D.S. — Dept. of Oral Anat., Dental School, Northumberland Rd., NEWCASTLE upon Tyne NE1 8TA, England a Development of the submandibular gland and the differentiation of the ductal elements. (Rodentia) MATTINGLY, Miss E. Ph.D. — Dept. of Zool., Univ. of Georgia, ATHENS, Ga. 30601, U.S.A. a Variations in nucleic acid synthesis during larval development (autoradiography and biochemistry) . Rhynchosciara angelae (Dipteca) MATUSZEWSKI, B. Ph.D. — Dept. of Cytol., Zool. Inst., Warsaw Univ., Krakowskie Przedmiescie 26/28, WARSZAWA 64, Poland a Oogenesis. (Cecidomyiidae, Diptera) b Cytochemical investigation on the origin of the mitotic spindle. Same species as a c Development and growth of egg follicles: 1. growth regulation of nurse nuclei; 2. origin of oosome material in the egg cell. Same species as a MAUGER (GIRARD), Mrs. A. Dr.es Sci. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Ultrastructure of the effects of x-irradiation upon the development of the spinal pteryla and the cutaneous nerve pattern. Gallus domesticus (Aves) b Role of spinal cord, somites, and ectoderm in feather pattern formation. Same species as a c Contribution of various cell types to the dermis and epidermis (autoradiography, xeno- plasty transplantation). Gallus domesticus, Coturnix japonica (Aves) MAURER, R. R. Ph.D. — Natl. Inst, of Environm. Health Sci., P.O.Box 12233, RESEARCH TRIANGLE PARK, N.C. 27709, U.S.A. a Significance of uterine proteins to 2 - 4 cell embryos in vitro. Oryctolagus cuniculus (Lagomorpha) b The male influence on the development of the early embryo (2 cell - blastocyst) . Oryctola- gus cuniculus (Lagomorpha) , Mesocricetus auratus (Rodentia) c The effects of uterine environmental changes with maternal ageing on embryonic develop- ment. Same species as a 120 MAY CHING, T. Dr., Prof. — Agronomy Dept, Oregon State Univ., CORVALLIS, Ore. 97331, U.S.A. a Biogenesis of glyoxysomes in germinating seeds. Pinus pondecosa, P. jetferii (Gymno- spermae) b Physiology of developing seeds, especially nucleic acids. Glyxine max (Papilionaceae) MAYER T. C Ph.D., Prof. — Dept. of Biol., Fac. of Lib. Arts and Sci., Rider Coll., TRENTON, N.J. 08602, U.S.A. a Developmental genetics of white-spotting patterns. Mus musculus (Rodentia) MAYS, U. Dr.rer.nat. — Zool. Inst, der Univ., Badestr. 9, 44 MONSTER/Westf., W. Germany a RNA transport in the egg follicle, especially in meroistic ovaries (radioisotopes, electron microscopy) . Pyrrhocoris apterus (Homoptera) MAZHUGA, P. M. Dr.Biol.Sci., Prof. — Dept. of Cytol. and Histogen., Inst, of Zool., Acad. of Sci. of the Ukraine, Vladimirskaya St. 55, KIEV 30, U.S.S.R. a Principles of genesis, and cytological peculiarities of some derivatives of mesenchyme: the peculiarities of endochondral and perichondral osteogenesis. Domestic and laboratory animals (Mammalia), Homo sapiens (Primates) b Onto- and phylogenesis of the blood-vascular trunks of the extremities. Same species as a c Development of the blood-vascular bed of the joint capsule. Same species as a d Histogenesis of blood vessels; comparative hemopoiesis. Same species as a e The structural and functional differentiation of cells in chondrogenesis and osteogenesis. (Mammalia) f Utilization of cells and matrix substances during enchondral osteogenesis (autoradiography, histochemistry, electron microscopy). Oryctolagus cuniculus (Lagomorpha), Rattus spec. (Rodentia) MAZURKIEWICZ, M. Ph.D. — Dept. of Oceanography, Ira C.Darling Center for Re- search, Teaching, and Service (Marine Lab.), Univ. of Maine, WALPOLE, Me. 04573, U.S.A. a Development from the egg through F2 generation. Laoneceis culvert (Errantia, Polychaeta) b Larval development and reproduction. Hydrobia totteni, H. salsa (Prosobranchia, Gastro- poda) c Larval development. Macoma balthica (Lamellibranchia) d Larval development. Echinarachnius parma (Echinoidea) MAZZA, M. Dr.Nat.Sci. — 1st. di Zool. e Anat. Comp. deH'Univ., Via A. Volta 4, 56100 PISA, Italy a External egg morphology, development. Nepa rubra (Heteroptera) MEINIEL (BOUTRON) , Mrs. A. Dr. 3e cycle — Lab. de Biol. Anim., Univ. de Clermont, B.P. 45, 63 AUBIfiRE, France a Embryonic development of the pineal gland (electron microscopy, Falck and Hillarp method, autoradiography) . (Reptilia, Aves, Mammalia) b Parapineal organ (same methods as a). Lampetra planed (Cyclostomata) MEINIEL, R. Dr.3e cycle — Lab. de Biol. Anim., Univ. de Clermont, B.P. 45, 63 AUBIERE, a Teratogenic action of parathion: effect on biogenic amines, catecholamines and glycogen (histochemistry, electron microscopy). Gallus domesticus (Aves) MEINS, P., Jr. Ph.D. — Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540, U.S.A. a Molecular mechanisms for tumor recovery in crown-gall tumor cells. Nicotiana tabacum (Solanaceae) b Biochemistry of epigenetic inherited changes in the course of normal development (tissue culture) . Same species as a c The relationship between the potassium ion and auxin in regulating growth of cultured tissues. Same species as a d Conditional auxin requirements of cultured tissues. Same species as a MELANDER, Y. Ph.D. — Inst, of Genet., Univ. of Lund, Solvegatan 29, S-223 62 LUND, Sweden c „ MELLER. K. Dr.med. — Inst, fur Anat. der Ruhr-Univ. Bochum, Postfach 2148. 46J BOCHUM, W.Germany a Development of retina and central nervous system, especially cerebral cortex and cerebel- lum (electron microscopy, autoradiography, tissue culture). Gallus domesticus (Aves), Mus musculus (Rodentia) b Protein synthesis of differentiating cells (autoradiography) ,— ,„.«™%~», 1-. MELTON Ch G., Jr. Ph.D. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, U.S.A. a Genome structure, developmental function and control as studied by nucleic acid renatura- tion and hybridization. Trypanosoma lewisi (Mastigophora), Rana pipiens (Anura), Gal- lus domesticus (Aves), Bos taurus (Artiodactyla) b Biochemistry and cell biology of cleavage and early development. Rana pipiens (Anura) MELUCCI CAVENAGHI, Mrs. T. M. C. B.Sc. — Dept. of Gen. Biol., Inst, of Biol. Sci.. Fed. Univ. of Minas Gerais, Ru Carangola 288 - 4°andar, C.P. 253, BELO HORIZONTE. M.G., Brazil 121 a DNA content and nuclear size in endoderm and ectoderm. Craspedacusta sowerbii (Hy- drozoa) MEMIKOCLU (GONEN b Isoleucyl-tRNA formation as a controlling factor in the "turning-off of fetal hemoglobin production. (Rodentia) c Identification of species of isopentenyl-tRNA's during embryonic development. Mus musculus, Rattus spec. (Rodentia) .4r.11 REPORTER. M. C. Ph.D. — Charles F. Kettering Research Labs., 150 E. South College St., YELLOW SPRINGS, Ohio 45387, U.S.A. a Metabolic characteristics of the early embryo. Gallus domesticus (Aves) b Energy transfer processes in the early embryo and in monolayer cultures. Gallus domesti- cus (Aves) c Energy transfer processes in cell-cell interactions in monolayer cultures. Rattus rattus (Rodentia) RESSOUCHES (SELMfiS), Mrs. A.-P. Dr.Biol.anim. — Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facultes, 33 TALENCE, France a Developpement embryonnaire. Pissodes spec. (Coleoptera) RESTELLI. M. A. M.D. — Inst, de Embriol., Biol, e Histol., Fac. de Cienc. Med., Univ. Nac. de La Plata, 60 y 120, LA PLATA, Argentina a Analysis of growth control (tissue and humoral factors) of liver tissue in tissue culture and organ culture. Mus musculus (Rodentia) REVERBERI, G. D.Sci., Prof. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 PALERMO, Italy • a The role of some enzymes in embryonic development (marine Invertebrata) b Ultrastructure of the developing egg. (Annelida; Mollusca; Ascidiacea) REVfiSZ-FERENCZY, Mrs. E. M.D. — Dept. of Anat.. Div. of Appl. and Topogr. Anat., Univ. of Bern, 26 Buehlstr., CH-3012 BERN, Switzerland a Radiobiology, normal embryology. Homo sapiens (Primates) b Radiobiology, experimental embryology. 1. genetics; 2. placentology. Mesocricetus auratus (Rodentia) REYER R. W. Ph.D., Prof. — Dept. of Anat., Med. Center, West Virginia Univ., MORGANTOWN, W.Va. 26506, U.S.A. • 149 a Causal mechanisms involved in lens regeneration from the dorsal iris and their relation to the processes of lens induction in the embryo. Triturus viridescens (Urodela) b DNA synthesis, cell division and cell migration during neural retina regeneration using thymidine-H3. Triturus viridescens, Ambystoma maculatum (Urodela) c Stimulating factors common to lens and limb regeneration. Same species as a REYNAUD, G. R. Dr.spec. — Lab. de Morphogenet. Anim., Centre Saint-Charles, Univ. de Provence, Place Victor Hugo, 13 MARSEILLE 3e, France a Etude des relations entre soma et germen. (Aves) REYNOLDS, S. R. M. Ph.D., D.Sc, Prof.(Emer. Univ. of Illinois) — Dept. of Obstet. and Gynecol., Univ. of Pennsylvania, PHILADELPHIA, Pa. 19104, U.S.A. REYNOLDS (KING), Mrs. W. A. Ph.D., Prof. — Dept. of Anat, Coll. of Med., Univ. of Illinois, 1853 W.Polk St., P.O.Box 6998 CHICAGO, 111. 60680, U.S.A. a Metamorphosis: uptake and localization of thyroxine in tissues and cells, collagen deposition. Rana pipiens (Anura) b Fetal contributions to amniotic fluid. Macaca mulatta, M. speciosa, M. irus, Homo sapiens (Primates) c Fetal metabolism and composition in diabetic pregnancy. Same species as b d Effect of cyclamate, saccharin and monosodium glutamate on fetus and neonate. Same species as b REYREL, Miss F. M. J. Dr.3e Cycle — Lab. de Biol. Gener., Univ. Paul-Sabatier, 118 Route de Narbonne, 31 TOULOUSE 04, France a Regeneration de la machoire et des dents; etude descriptive et experimentale du blasteme de regeneration (determinisme, differenciation) par greffes et cultures d'organes. Pleucodeles waltlii (Urodela) REYSS-BRION (DUCREAU), Mrs. M. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Influence des rayons X sur le developpement embryonnaire. Pleuvodeles waltlii (Urodela), Gallus spec. (Aves) b Influence des rayons X sur le pouvoir inducteur de la gastrula. Pleurodeles waltlii (Urodela) c Effet des rayons X sur le developpement de la peau embryonnaire. Gallus domesticus (Aves) REZENDE, Miss E. S. B.Sc. — Dept. of Gen. Biol., Inst, of Biol. Sci., Fed. Univ. of Minas Gerais, Rua Carangola 288 - 4°andar, C.P. 253, BELO HORIZONTE, M.G., Brazil a Nuclear size and DNA content (cytophotometry) of different organs in embryo and larva. Ascidia nigra (Ascidiacea) b Nuclear size in somatic and germinal tissues. Parascaris equotum (Nematoda) RIBBERT, D. — Zool. Inst, der Westf. Wilhelms-Univ., Badestr. 9, 44 MUNSTER/Westf., W.Germany RICE, A. L. Ph.D. — Dept. of Zool., British Museum (Nat.Hist), Cromwell Rd., LONDON S.W.7, England a Development of laboratory reared animals. (Decapoda, Crustacea) b Larval development. Macropipus spec, Carcinus spec. (Portunidae, Decapoda, Crustacea) c Larval development and metamorphosis. Nephrops norvegicus (Decapoda, Crustacea) RICHARDS, Mrs. C. M. Ph.D. — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a The production of inbred strains using gynogenetic techniques of two types: 1. combination of egg nucleus plus second polar body; 2. inhibition of the first cleavage of a haploid egg to produce completely homozygous diploids. Rana pipiens (Anura) b Genetics of various mutants including albino, blue, melanoid, as well as mutants uncovered by gynogenesis. Same species as a c Control of the sex of metamorphosed animals by the administration of estrogen or testosterone at appropriate larval stages. Same species as a RICHARDSON. W. N. Ph.D. — Dept. of Biol., Univ. of Miami, CORAL GABLES, Fla. 33124, U.S. A. a Developmental systems. (Algae) RICHTER, R. H. H. Ph.D. — Eigerstr. 70, 3000 BERN, Switzerland a Teratogenesis; effect of certain compounds and conditions. Rattus spec. (Rodentia) b Effect of some 50 steroidal compounds on the development of male and female rats. Rattus spec. (Rodentia) RIECK, A. F. Ph.D., Prof. — Dept. of Physiol., Sch. of Med., Marquette Univ., 561 N. 15th St., MILWAUKEE, Wis. 53233, U.S.A. RIFKIND, R. A. Dr. — Dept. of Human Genet, and Developm,, Coll. of Phys. and Surg., Columbia Univ., 630 West 168th St., NEW YORK, N.Y. 10032, U.S.A. • RIKMENSPOEL. R. Ph.D., Prof. — Dept. of Biol. Sci., State Univ. of New York, 1400 Washington Ave., ALBANY, N.Y. 12203, U.S.A. a Control mechanisms of sperm motility. Bos taurus (Attiodactyla) RIMNICEANU, Mrs. C. Dr.med., Prof. — Lab. de Embriol. Norm. §i Patol., Acad, de Stiin^e Med., Centr. de Cere. Med., Bui. M. Viteazul 24, TIMI§OARA, Rumania a Histochemistry of the placenta. Homo sapiens (Primates) 150 RINALDI, Miss A. M. Dr.Biol. — 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, Italy a Messenger RNA in unfertilized eggs. Arbacia punctulata (Echinotdea) b RNA synthesis in mitochondria. Arbacia lixula (Echinoidea) RINALDI, Miss L. Dr.Biol. — 1st. di Zool., Univ. di Parma, Via Universita 12, 43100 PARMA, Italy __ * a Experimental morphology of bone induction and inhibitory action of thalidomide. Mus musculus, Rattus spec. (Rodentia) (with B. SCHREIBER) „,<„-, r™-»r»T RINAUDO, M. T. Prof. — Inst, of Biochem., Univ. of Turin, Via Giolitti 34, 10123 TORI- NO, Italy ^ , _ , , __ , ... RIPOLL, P. M.Sc. — Sect. Developm. Genet., Inst, of Genet, and Anthropol., Velazques 144, MADRID 6, Spain , , , ,rv < i a Clonal behaviour of zygotic lethals in imaginal discs. Drosophda melanog aster (Diptera) RISNES, S. — Inst, of Anat., Univ. of Bergen, Arstadvollen 19, 5000 BERGEN, Norway a Graphical reconstructions of tooth germs and dental laminae in pouch youngs. Isoodon obesulus, I. macrourus, Perameles gunnii (Macsupialia) b Epithelial-mesenchymal interactions in odontogenesis. Rattus norvegicus (Rodentia) RITSCHARD, R. L. Ph.D., Prof. — Biol. Sci. Dept., Calif. State Polytechnic Coll., SAN LUIS OBISPO, Calif. 93401, U.S.A. a Histochemistry of epithelio-mesenchymal relationships in skin development. (Aves, Mam- malia) b Rates of RNA and protein synthesis in eggs, and correlation with developmental events. Marine spp. (Invertebrat a ) RIVERA Miss E. M. Ph.D., Prof. — Dept. of Zool., Michigan State Univ., 220 Nat. Sci. Bldg., EAST LANSING, Mich. 48823, U.S.A. a Analysis of hormone actions on mammary gland development in organ culture. Mus musculus (Rodentia) ,^t,^t-> *> i RIZKI, T. M. Ph.D., Prof. — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Mutant genes regulating the function and structure of fat cells in the functional differentia- tion of the fat body (fluorescence and electron microscopy). Drosophila melanogaster (Diptera) b Effects of various nucleic acid analogs in relation to morphogenesis, esp. those substances which can serve as mutagens. Same species as a ROBADEY (RIBAS), Mrs. M. R. — Inst, de Biol. Anim., Fac. des Sci., Univ. de Fribourg, 1700 FRIBOURG, Switzerland a Skull morphogenesis and cephalic induction. Gallus gallus (Aves) b Interspecific associations between various organs. Gallus gallus, Coturnix spec. (Aves) ROBECCHI, Miss M. G. M.D. — Dept. of Human Anat., Univ. of Torino, Corso M. d'Azeglio 52, 10126 TORINO, Italy a Morphology, histochemistry, and electron microscopy of neuroblast development in olfactory placode. Gallus domesticus (Aves) ROBERT, M. Dipl.Natw. — Inst, fur Genet., Univ. des Saarlandes, 66 SAARBRUCKEN 11, W.Germany . a Regulation of gene activity and histone cytochemistry in giant chromosomes. Chironomus thummi, Ch. tentans (Diptera) ROBERTS. A. Ph.D. — Dept. of Zool., Univ. of Bristol, BRISTOL BS8 1UG, England ROBERTS. Miss C. M. B.Sc. — Wellcome Inst, of Comp. Physiol., Zool. Soc. of London, Regent's Park, LONDON NW1 4RY, England a Embryology, especially implantation and early stages; histochemistry of pregnant uteri. Chinchilla lanigev, Lagostomus maximus, Myocastor coypus, Octodon degus, Galea musteloides, Proechimys guairae (Hystricomocpha, Rodentia) ROBERTS, L. W. Ph.D., Prof. — Dept. of Biol. Sci., Univ. of Idaho. MOSCOW, Ida. 83843, U.S.A. . c . a Pre-pattern phenomenon of localization of enzymatic activity prior to the formation ot wound vessel member. Coleus blumei (Labiatae) (with S. BAB A) b Effect of environment on morphogenesis of vascular elements. Coleus blumei (Labiatae) (with S. BABA) c Developmental physiology of xylogenesis in pith parenchyma explants: differentiation pat- terns and hormonal requirements. Lactuca sativa (Compositae) c^r^/^v ROBERTSON, B. M.D. — Dept. of Pediat. Pathol., Karolinska sjukhuset, 104 01 STOCK- HOLM 60, Sweden a The pathology and anatomy of pulmonary vasculature in congenital heart malformations, particularly transposition of the great arteries. Homo sapiens (Primates) ROBERTSON (PATON). Mrs. E. M. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. „„ ™>,™~iv-mv« a Development of imaginal buds. Drosophila spec. (Diptera) (with C. H. WADDING 1UJN) b Electron microscopy of the nucleolar organiser in the pupal bristle cells. Drosophila melanogaster (Diptera) 151 ROBERTSON, G. G. Ph.D., Prof. — Dept. of Anat, Med. Units, Univ. of Tennessee, 800 Madison Ave., MEMPHIS, Tenn. 38103, U.S.A. • a Virus-induced abnormalities in embryos. Gallus domesticus (Aves) ROBERTSON, H. A. Ph.D. — Anim. Research Inst., OTTAWA, Ont., Canada a Development of ovarian follicles. Ovis aries. Bos taucus (Artiodactyla) b Hormonal requirement for implantation. Ovis aries, Bos taurus (Artiodactyla) ROBINSON, Miss H. L. Ph.D. — Dept. of Biol., Georgetown Univ., 37th & O. St. N.W., WASHINGTON, D.C. 20007, U.S.A. a Nuclear transplantation of morphologically and biochemically differentiated lens cells. Rana pipiens (Anura) ROBINSON J C. M.D., Ph.D. — Lab. of Biomed. Sci., Natl. Inst, of Child Health and Human Developm., Natl. Inst, of Health, BETHESDA, Md. 20014, U.S.A. a Characterization of pregnancy-associated enzymes in maternal blood plasma. Homo sapiens (Primates) ROBISON O. W. Ph.D., Prof. — Dept. of Anim. Sci., North Carolina State Univ., P.O. Box 5127, RALEIGH, N.C. 27607, U.S.A. a Genetic and maternal effects on development of the neonate; cross-fostering, automatic sow and standard statistical analysis. Sus scrofa (Artiodactyla) b Study of early embryonic development by embryo transfer; factors contributing to uterine capacity. Sus scrofa (Artiodactyla) ROBKIN, M. Ph.D., Prof. — Dept. of Nuclear Engin., Univ. of Washington, SEATTLE Wash. 98105, U.S.A. a Embryo culture. Rattus spec. (Rodentia) ROCKSTEIN, M. Ph.D., Prof. — Dept. of Physiol., Univ. of Miami, P.O.Box 875, Biscayne Annex, MIAMI, Fla. 33152, U.S.A. a Physiological basis of aging, growth, and metamorphosis. Musca domestica (Dipteva) b Metachemogenesis — post emergence biochemical maturation. (Holometabola, Insecta) c Hereditary vs. environmental factors in longevity. (Diptera; Hymenoptera) d Effects of x-irradiation on development, aging, and longevity. Musca domestica (Diptera) RODRIGUES CORREIA, Mrs. M. J. M.D. — Inst, de Histol. e Embriol., Fac. de Med., Av. Prof. Egas Moniz, LISBOA 4, Portugal a Ultrastructure of the embryonic mesonephros. Gallus domesticus (Aves) b Action of ionizing radiations upon the embryonated egg. Gallus domesticus (Aves) (with M. J. XAVIER MORATO) ROELS, F. M.D. — Lab. of Anat., Univ. of Gent, Ledeganckstr. 35, GENT, Belgium a Peroxisomes and peroxidases in oocytes and fertilized eggs. Artemia salina (Anostcaca, ROEST (WAGENAAR), Mrs. J. A. — Anat.-Embryol. Inst., Univ. of Amsterdam, Maurits- kade 61, AMSTERDAM-O., Netherlands a Light microscopy, electron microscopy, histochemistry, physiology, and experimental teratogenesis of heart development in the embryo. Gallus domesticus (Aves), Mus musculus (Rodentia) (with H. M. LAANE and J. A. LOS) ROGERS, K. T Ph.D. — Dept. of Anat., Sch. of Med., Univ. of California, SAN FRAN- CISCO, Calif. 94122, U.S.A. • ROGUEDA ( VIGNAU) . Mrs. J. Dr.Biol.anim. — Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facultes, 33 TALENCE, France a Experiments sur la morphogenese embryonnaire de la tete. Carausius spec. (Phasmida) ROGULSKA, Miss T. Ph.D. — Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Kra- kowskie Przedmiescie 26/28, WARSZAWA 64, Poland a Origin and fate of primordial germ cells. Gallus domesticus (Aves), Mus musculus (Rodentia) b Differentiation of the somatic and germinal tissues of the gonad. Same species as a ROKYTA, R. MUDr., CSc. — Inst, of Pathophysiol., Charles Univ., Lidicka 1, PLZEfi, Czechoslovakia a Interhemispherical connections between subcortical auditory centres, especially between medial geniculate bodies in development. Felis domestica (Carnivora), Rattus norvegicus (Rodentia) , Oryctolagus cuniculus (Lagomorpha) b The influence of GABA (y-aminobutyric acid) on the cortical somesthetic response after the stimulation of different parts of the somesthetic pathway during early postnatal development. Rattus norvegicus (Rodentia), Oryctolagus cuniculus (Lagomorpha) ROLLHAUSER, H. Dr.med., Prof. — Anat. Inst, der Univ., Vesaliusweg 2-4, 44 MUN- STER/Westf., W.Germany ROLLINS, E. A. Ph.D. — Dept. of Biol. Sci., State Univ. of New York, 1400 Washington Ave., ALBANY, N.Y. 12203, U.S.A. • a Control of tissue-specific RNA and protein synthesis in the early embryo. Rana pipiens (Anura) b Characterization of chromatin, DNA, RNA, and protein at specific developmental stages (cell or organ culture and nuclear isolation). Same species as a c Brain and fin development. Oryzias latipes (Teleostei) 152 d Pattern of thymidine incorporation in the chromosomes of cleaving cells. Same species as c e Overall morphology of the DNA in lampbrush chromosomes. Triturus viridescens (Uvodela) ROMANOFF, A. L. Ph.D., Prof.(Emer.) — Lab. of Chem. Embryol., Cornell Univ., c/o 105 Rice Hall, ITHACA. N.Y. 14850, U.S.A. a Chemical embryology. (Aves) b Developmental pathology. (Aves) ROMANOVA, Mrs. L. K. Dr.med.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a The restoration of lungs. Rattus norvegicus, Mus musculus (Rodentia) ROMANOVSKf, A. RNDr., C.Sc, Prof. — Dept. of Exper. Zool., Charles Univ., Vinicna 7, PR AH A 2, Czechoslovakia a Proteins and antigens in early development. (Amphibia) (with J. MACHA and J. PALE- CEK b Transplantation of nuclei in relation to the development of antigenic characteristics. (Amphibia) (with F. SLADECEK) ROMIJN, C. Dr., Prof. — Lab. of Vet. Physiol., State Univ. of Utrecht, Alex. Numankade 93, UTRECHT, Netherlands RONCALI, Miss L. M.D. — Inst, of Human Anat., Fac. of Med., Univ. of Bari, Policlinico, 70124 BARI, Italy a Modifications of vascular patterns during experimental twinning in the limb bud. Gallus domesticus (Aves) b Experimental production of ectodermal thickenings in limb buds. Gallus domesticus (Aves) ROOS, T. B. Ph.D., Prof. — Dept. of Biol. Sci., Dartmouth Coll., HANOVER, N.H. 03755, U.S.A. a Biochemical and morphological differentiation of the adrenal cortex from the anlage to the functional state (12 to 16 days, stages 19-33) (electron microscopy, histochemistry and organ culture) . Rattus norvegicus (Rodentia) b Development of pituitary control of endocrine function; organ culture studies of independent differentiation of mesonephric ridge components in order to determine their interactions and competence and their response to pituitary and neural control. Same species as a ROSA, C. F. A. — Dept. de Biol., Fac. Filos. Cienc. e Let. de Ribeirao Preto, Univ. de Sao Paulo, C.P. 759. RIBEIRAO PR6TO, S.P., Brazil ROSALES RONQUILLO, Mrs. M. C. Ph.D. — Dept. of Zool., Univ. of Illinois, 515 G Morrill Hall, URBANA, 111. 61801, U.S.A. a Long term primary culture of embryonic, larval, and imaginal cells. Anopheles stephensi (Diptera) b In vitro studies on cell movement and differentiation. Anopheles stephensi (Diptera) ROSE, Mrs. F. C. M.A. — Lab. of Developm. Biol., Dept. of Anat., Tulane Univ., Riverside Research Center, BELLE CHASSE, La. 70037, U.S.A. a Effect of x-irradiation on regeneration of aneurogenic limbs. Ambystoma punctatum (Uvodela) ROSE, S. M. Ph.D., Prof. — Lab. of Developm. Biol., Dept. of Anat., Tulane Univ., River- side Research Center, BELLE CHASSE, La. 70037, U.S.A. • a Effect of x-irradiation on regeneration of aneurogenic limbs. Ambystoma punctatum (Uvodela) b Bioelectric patterns in normal, denervated, and x-rayed limbs. Triturus viridescens (Uvodela) ROSENBAUM, J. L. Ph.D. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. a Relation between flagellar protein precursor pools and regeneration kinetics studied in amino acid-requiring and paralyzed flagella mutants by use of inhibitors of protein synthesis (cycloheximide), assembly (colchicine, vinblastine), pulse-labeling; isolation. characterization, and in vitro polymerization of flagellar microtubule subunits; growth zones of microtubules, in vivo and in vitro by autoradiography. (Chlamydomonas veinhavdi (Volvocales, Chlovophyta) , Tetvahymena pyvifovmis (Ciliata) b Biochemistry, synthesis, and assembly in vivo and in vitro of neurotubules and their role in the development of neurites and axons of cultured neuroblastoma cells. Mus musculus (Rodentia) ROSENBERG, A. J. Prof. — Lab. d'Anat. Comp., Univ. Paris VII, 2 Place Jussieu, 75 PARIS Ve, France ROSI, Miss G. Dott.Sci.Biol. — 1st. di Biol. Gener.. Univ. di Perugia, Via del Giochetto, 06100 PERUGIA, Italy a Rapporti tra rigenerazione e neurosecrezione. Allolobophova caliginosa (Oligochaeta) b Sviluppo dei meccanismi eritropoietici durante la vita neonatale. Ovyctolagus cuniculus (Lagomovpha) c Sviluppo del sistema neurosecretorio in embrioni. Allolobophova caliginosa (Oligochaeta) ROSS, G. T. B.A. — Dept. of Biol., St.Francis Xavier Univ., ANTIGONISH. N.S.. Canada ROSS, K. F. A. D.Sc. — Muse. Dystrophy Res. Labs., Newcastle Gen. Hosp., NEW- CASTLE upon Tyne NE4 6BE, England 153 a Measurement of the total nucleolar material (by interference microscopy), and the nucleolar RNA (by scanning microdensitometry) in cultured normally differentiating myoblasts and in myoblasts cultured from dystrophic muscle. Gallus domesticus (Aves), Mus musculus (Rodentia), Homo sapiens (Primates) (with D. E. JANS) ROSS, L. M. M.D., Ph.D. — Dept. of Anat., Med. Branch, Univ. of Texas, GALVESTON, Tex. 77550, U.S.A. a Production of abnormalities of the thymus using teratogens (vitamin A, cortisone). Mus musculus (Rodentia) b The role of the embryonic tongue in the process of closure of the secondary palate. Mus musculus (Rodentia) ROSSI, A. Dr. — 1st. di Anat. Comp. "Battista Grassi", Univ. di Roma, Via A. Borelli 50, 00161 ROMA, Italy a Determination in the neural plate. Rana esculenta, Bufo bufo (Anuca) ROSTAND, J. Prof. — 29 rue Pradier, 92 VILLE D'AVRAY, France • a Parthenogenese et gynogenese; regulation chromosomique par le froid. (Amphibia) b Mutations (polydactylie, ectrodactylie, etc.) et anomalies provoquees par le milieu exterieur (principalement "Anomalie P"). (Amphibia) c Action protectrice de la glycerine a l'egard de la congelation des cellules spermatiques. (Amphibia) ROSTEDT, Miss I. B. M.Sc. — Inst, of Biol., Univ. of Jyvaskyla, Vapaudenkatu 4, JYVASKYLA, Finland a Heterogeneous inductors on embryonic ectoderm. Gallus domesticus (Aves) b Early embryonic development. Same species as a ROTH, S. A. Ph.D. — Dept. of Biol., Johns Hopkins Univ., Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Molecular mechanisms for intercellular adhesive recognition and its role in morphogenesis. Gallus domesticus (Aves), Mus musculus (Rodentia) ROTH, Th. F. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Electron microscopy, physiology, and molecular aspects of the protein transport site on the plasma membrane in the oocyte and liver. Culex pipiens, C fatigans (Diptera), Gallus domesticus (Aves), Rattus norvegicus (Rodentia) b Protein, DNA and RNA inhibitors applied at various intervals of meiotic prophase are used to affect simultaneously the synaptonemal complex and genetic crossing over in synchronous oocytes; ultrastructure of meiotic prophase. Culex pipiens (Diptera) c Polar granule formation; time when they associate with the germ cells, their persistence and their fate at oocyte maturation. Culex pipiens, Culex fatigans (Diptera) d Virus transmission from mother to oocyte: cell types, sequence and time in development (ferritin-antivirus conjugates, electron microscopy). Gallus domesticus (Aves) ROTT, Mrs. N. N. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Changes of mitotic cycle in early embryogenesis as related to morphogenetic nuclear function and synthesis of RNA. Strong ylocentrotus nudus (Echinoidea) , Misgurnus fos- silis, Salmo gaivdneri, Cyprinus carpio, Esox lucius (Teleostei), Ambystoma mexicanum (Ucodela) ROUCH, R. — Lab. Souterrain du C.N.R.S., 09 MOULIS, France (no embryological work in progress) ROULSTON, W. J. M.Sc. — Long Pocket Labs., C.S.I.R.O. Div. of Entomol., Meiers Rd., INDOOROOPILLY, Qld. 4068, Australia (no embryological work in progress) ROUSSEL, C. Dr.en Med. — Lab. d'Histol.-Embryol. A, Fac. de Med., 45 rue des Sts. Peres, PARIS Vie, France a Mode d'action de certaines substances teratogenes (Triton WR 1339). (Mammalia) ROUX, Ch. Dr.en Med., Prof. — Lab. d'Embryol., CHU Saint-Antoine, 27 rue Chaligny, 75 PARIS Xlle, France ROUX, J. P. Lic.de Sci.Nat. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Histochemistry and ultrastructure of teeth buds. Pleurodeles waltlii (Urodela) ROWLEY, D. A. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, 1101 E. 57th St., CHICAGO, 111. 60637, U.S.A. ROWSON. L. E. A. M.R.C.V.S. — A.R.C. Unit of Reprod. Physiol, and Biochem., Anim. Res. Station, 307 Huntingdon Rd., CAMBRIDGE CB3 0JQ. England a Ovum transplantation and artificial insemination. (Mammalia) RUBEN. L. N. Ph.D., Prof. — Biol. Dept.. Reed College, PORTLAND, Ore. 97202, U.S.A. • a Neoplasia: 1. physical and chemical factors affecting immunocompetence and its relation to lymphosarcoma transmissibility and development; 2. attempt to initiate non-lymphoid non-viral tumours using N-nitrosomethylurea. Triturus viridescens, Xenopus laevis, Rana pipiens (Amphibia) 154 b Normal development of immunocompetence and factors affecting normal development (haemagglutinin and haemolysin tests). Xenopus laevis (Anuca) RUCH, J. V. Dr.med., Dr.es Sci. — Inst. d'Embryol., Fac de Med., 11 rue Humann, 67 STRASBOURG, France • a Action of dexamethasone in vivo and in vitro. Ocyctolagus cuniculus (Lago- morpha), Mus musculus (Rodentia) b Epithelial-mesenchymal interactions, mitosis, and differentiation in teeth. Mus musculus (Rodentia) RUDDLE, F. H. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. • a Discrimination between genetic and epigenetic events in somatic cells in vitro by studying enzyme variants. Mus musculus (Rodentia) b Genetic and epigenetic analysis utilizing somatic cell hybrids. RUDNEVA, Miss T. B. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Duration of mitotic phases in the period of synchronous cleavage. Xenopus laevis (Anura) (with T. A. DETTLAFF) RUDNICK, Miss D. Ph.D. — Albertus Magnus Coll., 700 Prospect St., NEW HAVEN, Conn. 06511, U.S.A. • a Development of pharyngeal derivatives. Gallus domesticus (Aves) RUfi, G. — Lab. de Biol. Cell., Fac. des Sci., B.P. 347, 51 REIMS, France a Ultrastructure of nucleolus during oogenesis. Lineus ruber (Nemertea) RUGH, R. Ph.D., Prof. (Emer.) — Radiol. Research Labs., Dept. of Radiol., Coll. of Phys. and Surg., Columbia Univ., 630 W. 168th St., NEW YORK, NY. 10032, U.S.A. RUNNER, M. N. Ph.D., Prof. — Inst, for Developm. Biol., Univ. of Colorado, BOULDER, Colo. 80302, U.S.A. • RUNNSTROM, J. A. M. f M.D., Ph.D., Prof. — Wenner-Gren Inst., STOCKHOLM, Sweden RUSAOUEN, Mrs. M. Dr.spec — Fac. de Med., Univ. d'Alger, ALGER. Algeria RUSCH, H. P. M.D., Prof. — McArdle Lab. for Cancer Res., Univ. of Wisconsin, 450 N. Randall Ave., MADISON, Wis. 53706, U.S.A. RUSSO-CAIA, S. Prof.Inc. — 1st. di Istol. ed Embriol., Univ. di Camerino, 62032 CAME- RINO, Italy RUTH. R. F. Ph.D., Prof. — Dept. of Zool., Fac. of Sci., Univ. of Alberta, EDMONTON, Alta., Canada RYABININA, Miss Z.A. Cand.biol.sci. — Inst, of Human Morphol, Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Cytological characteristic of the regenerating liver. Rattus norvegicus, Mus musculus, Cavia porcellus and other spp. (Rodentia) RYCZKOWSKI, M. Doc, Dr. — Dept. of Plant Physiol., Jagellonian Univ., Grodzka 53, KRAKOW, Poland a Physico-chemical and physiological properties of the developing ovule and embryo. 1. Free amino acids in the environment of the embryo. 2. Free amino acids in the endosperm tissue and embryo during exponential phase of its growth. 3. Physico-chemical gradients in the ovule and embryo. 4. Respiration and oxygen tension of the ovule. (Monocotyledo- nae, Dicotyledonae, Gymnospermae) RYFFEL, G. Lic.phil.nat. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8, CH-3012 BERN, Switzerland a Thyroxine and RNA synthesis in tadpole tissues. Xenopus laevis (Anura) (with R. WEBER and U. SCHIBLER) RYLAND, J. S. Ph.D. — Dept. of Zool., Univ. Coll. of Swansea, Singleton Park, SWAN- SEA, Glamorgan, Wales, U.K. a Effect of environmental parameters on development. Pleuronectes platessa (Teleostei) b Larval biology. (Bryozoa) RZEHAK, K. Ph.D. — Dept. of Biol, and Embryol., Acad, of Med., ul. Kopernika 7, KRAKOW, Poland a Influence of the nervous system upon regeneration. Triturus spec. (Urodela) b Cytokinesis in eggs. Xenopus spec. (Anura) SAAG, P. Th. M. van der M.Sc. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Universiteitscentrum "De Uithof", UTRECHT, Netherlands SABBADIN, A. Dr., Prof. — 1st. di Biol. Anim., Univ. di Padova, Via Loredan 10, 35100 PADOVA, Italy a Differentiation of germ cells. Botryllus schlosseri (Ascidiacea) SACARRAO, G da FONSECA Dr.Sc, Prof. — Fac. de Ciencias, Museu Bocage, LISBOA, Portugal a Development of the epistellar body. Octopus spec, Argonauta spec. (Cephalopoda) b Development of the statocyst. (Cephalopoda) c Blastokinesis. Tremoctopus violaceus, Octopus vulgaris (Cephalopoda) SACHS, L. Prof. — Dept. of Genet., Weizman Inst, of Sci.. REHOVOTH, Israel • SACHS, T. Dr. — Dept. of Bot., The Hebrew Univ., JERUSALEM, Israel • 155 SACK, W. O. D.V.M., Ph.D., Prof. — Dept. of Anat., Vet. Coll., Cornell Univ., ITHACA, N.V. 14850, U.S.A. a Establishing a comprehensive embryological slide collection of domestic and laboratory animals. Canis familiaris, Felis catus, Bos taurus, Ovis aries, Rattus rattus, Mus musculus, Cavia porcellus (Mammalia) (with H. E. EVANS) b Developmental morphology. Cam's familiaris (Carnivora), Bos taurus (Actiodactyla) SADOKOVA, Miss I. E. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Regeneration of myocardium (biochemistry). Ovyctolagus cuniculus (Lagomorpha) SAGAWA, Y. Ph.D., Prof. — Harold L.Lyon Arboretum and Horticult. Dept., Univ. of Hawaii, HONOLULU, Hawaii 96822, U.S.A. a Developmental studies of ovule formation. (Orchidaceae) b Developmental studies of apical meristem explants. (Orchidaceae) c Studies of in vitro growth of pollen tubes. (Orchidaceae) SAKAI, H. Ph.D., Prof. — Dept. of Biophys. and Biochem., Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku. TOKYO, 113 Japan • a Cell division and cortical contractile protein. Pseudocentrotus depressus, Hemicentrotus pulcherrimus (Echinoidea) b Mitotic apparatus and a protein which catalyzes transhydrogen between cell cortex and mitotic apparatus. Same species as a SAKUN. Mrs. O. F. Cand.biol.sci. — Biol. Inst., Leningrad State Univ., LENINGRAD B-164, U.S.S.R. a Effects of pituitary gonadotropins on the various phases of oogenesis, especially to the correlations between meiosis and vitellogenesis. Salmo salac, Oncorhynchus gorbuscha, Coregonus lavaretus pidschian (Clupeiformes), Acerina cernua (Perciformcs, Teleostei) SALA, M. Dr.biol.sci., Prof. — 1st. di Biol. Anim., Univ. di Padova, Via Loredan 10, 35100 PADOVA, Italy • a Later differentiation of embryonic mesenchyme cells in culture medium. Botcyllus schlosseri (Ascidiacea) b Migration of neural crest cells studied by means of localized radioactive marks. Tritucus cristatus (Ucodela) c Genetic information and neural differentiation studied by means of antibiotics. Same species as b d Comparative spermatogenesis. (Enterogona, Ascidiacea) SALAMATINA, Miss N. V. — Dept. of Biophys., Inst, of Exper. Morphol., Acad, of Sci. of the Georgian SSR., 51 Kamo St., TBILISI 2, U.S.S.R. a Role of chemical intercellular interactions in regulation of the rate of cell multiplication and intracellular synthesis studied in cell cultures and in vivo. Gallus domesticus (Aves), Rattus norvegicus, Mus musculus (Rodentia) SALAUN, Miss J. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Formation experimental d'embryomes homoplastiques et heteroplastiques. Gallus gallus (Aves) , Rattus rattus (Rodentia) b Influence reciproque des cellules cancereuses et embryonnaires reunies sur un meme hote. Rattus rattus, Mus musculus (Rodentia) (with E. ]. C. SMITH) SALLACH, H. J. Ph.D., Prof. — Dept. of Physiol. Chem.. Univ. of Wisconsin, 1215 Linden Drive. MADISON, Wis. 53706, U.S.A. a Biochemical aspects of development and differentiation (enzyme changes; metabolism of carbohydrates and nucleic acids). Rana pipiens, R. catesbeiana (Anura) SALLES, J. M. de B.Sc. — Dept. of Gen. Biol., Inst, of Biol. Sci., Fed. Univ. of Minas Gerais. Rua Carangola 288 - 4°andar, C.P. 253, BELO HORIZONTE. M.G. Brazil a Electron microscopy of the germinal vesicle, especially the "juxta-nucleolar granules". Bufo paracnemis (Anura) SALOMON de LEGNAME, Mrs. H. Dr.Biochem. — Inst, de Biol.. Univ. Nac. de Tucuman. Chacabuco 461, S. M. de TUCUMAN. Argentina a Intermediate metabolism during early development. Bufo arenarum (Anura) b Mitochondria during embryogenesis. Same species as a SALTHE. S. N. Ph.D., Prof. — Dept. of Biol., Brooklyn Coll., Bedford Ave. and Ave. H, NEW YORK, Brooklyn, N.Y. 11210, U.S.A. a Mechanism of expansion of perivitelline fluid in the egg. Rana pipiens (Anura) b Study of the hatching enzymes. (Amphibia) c Development of lactic dehydrogenase isoenzymes. Rana pipiens, R. palustris (Anura) SALTHE, V. M. B.S. — Dept. of Anat., Med. Coll.. NAGPUR-3, M.S., India a Effect of removal of the optic vesicle on histogenesis of the optic lobe. Gallus domesticus (Aves) (with P. N. DUBEY) SALVATORELLI, G. Ph.D. — 1st. di Anat. Comp., Univ. di Ferrara. Via Scienze 17. 44100 FERRARA. Italy a Factors in foetal erythropoiesis. Gallus domesticus (Aves) b Erythropoiesis and leucopoiesis during metamorphosis. Bufo bufo (Anura) 156 SALZGEBER, Miss B. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, NOGENT-sur-MARNE, France • a L'action d'agents chimiques sur la differenciation sexuelle. Gallus spec. (Aves) b Etude des effets teratogenes (malformations de rnembres) obtenus 1) par lyperite azotee (chlorethylamine), 2) par la thalidomide (phtalimidoglutarimide). Same species as a c Recherches sur la genese des malformations de membres. Gallus domesticus (Aves) SANANES, Miss N. Lic.es Sci. — Inst. Natl, de la Sante et de la Rech. Med., Unite de Physiol, placent., Hop. Saint- Antoine, 184 rue du Faubourg Saint-Antoine, 75 PARIS Xlle, France SANCHEZ RIERA, Miss A. N. Biochem. — Inst, de Biol., Univ. Nac. de Tucuman, Chaca- buco 461, S. M. de TUCUMAN, Argentina a Intermediate metabolism during early development; nucleotide synthesis. Bufo arenarum (Anuca) SANCHEZ (TEFF), Mrs. S. Dr.es Sci. — Lab. d'Histol., Fac. de Med., 2 rue Ecole de Medecine, 34 MONTPELLIER, France SANCHEZ, Miss S. S. Biochem. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S. M. de TUCUMAN, Argentina a Intermediate metabolism during early development: nucleotide synthesis. Bufo arenarum (Anura) SANDAHL, B. M.D. — Tornblad Inst, for Comp. Embryol., Biskopsgatan 7, S223 62 LUND, Sweden a Chromosome biochemistry during development, Oryctolagus cuniculus (Lagomorpha) SANDER, K. Ph.D., Prof. — Biol. Inst. I (Zool.) der Univ., Katharinenstr. 20, 78 FREI- BURG W.Germany • a Early stages of embryogenesis: epigenetics of segmentation pattern, blastokinesis. Euscelis plebejus (Cicadina, Homoptera) , (Chironomidae, Diptera) b Developmental physiology of embryonic mycetomes. Euscelis plebejus and other spp. (Cicadina, Homoptera) SANDERS, T. G. Ph.D. — Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540, U.S.A. a Regulation of imaginal disc determination and differentiation (developmental genetics and biochemistry of temperature-sensitive homoeotic and maternal mutants) . Drosophila melanogaster (Diptera) b Molecular mechanisms of spermatogenesis (genetics and biochemistry of Y chromosome gene function utilizing temperature-sensitive male sterile mutations) . Same species as a SANDOR, S. Dr.med. — Lab. de Embriol. Norm. §i Patol., Acad, de String Med., Centr. de Cere. Med., Bui. M. Viteazul 24, TIMI§OARA, Rumania a Teratological tests in early developmental stages. Gallus domesticus (Aves; Rodentia) b Development of embryonic axial organs. Gallus domesticus (Aves) c Time-lapse cinematography of early embryonic development. Gallus domesticus (Aves) SANG, J. H. Ph.D., Prof. — Sch. of Biol. Sci., Univ. of Sussex, Falmer, BRIGHTON BN1 9QG, England a Developmental effects of melanotic tumor genes, using germ-free techniques. Drosophila melanogaster (Diptera) b Culture of embryonic cells. Same species as a c Map of the presumptive areas in the blastoderm. Same species as a SANNASI, A. Ph.D. — Inst, fur Genet., Univ. des Saarlandes, 66 SAARBRUCKEN 11, W.Germany a Effect and mode of action of drugs on puffing patterns. Chironomus thummi (Diptera) SANTAMARIA, P. M.Sc. — Sect. Developm. Genet., Inst, of Genet, and Anthropol., Velazques 144, MADRID 6, Spain a Analysis of wing development in scalloping mutants by means of somatic recombination: allele homozygosity at different times of development, and clonal analysis of the mutant wing. Drosophila melanogaster (Diptera) SANTANA de CASTRO, Mrs. Y. X. B.Sc. — Dept. of Gen. Biol., Inst, of Biol. Sci., Fed. Univ. of Minas Gerais, Rua Carangola 288 - 4°andar, C.P. 253, BELO HORIZONTE. M.G., Brazil (no embryological work in progress) SANTORO D ANGELO, Mrs. L. Prof. — 1st. di Biol. Gen., Univ. di Roma, Policlinico Umberto I, 00100 ROMA, Italy a Effects of gravity acceleration during growth of primary root. Vicia faba (Papilionaceae) b Effects of 1 asparaginase during rejection of embryonic and larval transplants. Rana esculent a (Anura), Triturus taeniatus (Urodela) SASAKI, M. D.Sc. — Chromosome Research Unit, Fac. of Sci., Hokkaido Univ., North 10. West 8, SAPPORO, 060 Japan a Chromosome studies in early embryogenesis, with special reference to spontaneous abortion, maldevelopment and sex ratio. Homo sapiens (Primates) SASAKI, N. D.Sc. — Dept. of Biol., Fac. of Sci., Kyushu Univ., Hakozaki-cho, FUKUOKA, 812 Japan 157 a Change of regional effect in primary induction with special reference to molecular structure of inducing agent. Tciturus pyrrhogaster (Urodela), Gallus domesticus (Aves) b Transformation of primarily activated ectoderm by RNA. Triturus pyrrhogaster (Urodela) c Reactivity of ectoderm cells in primary induction. Same species as b SATHANANTHAN, A. H. Ph.D. — Dept. of Zool., Univ. of Ceylon, COLOMBO 3, Ceylon a Morphological, cytochemical and ultra-structural aspects of early development from second maturation division (oviposition) to the post-gastrula stage. Arion ater rufus (Pulmonata, Gastropoda) b Cell movements in morphogenesis. Arion ater rufus (Pulmonata, Gastropoda) SATO, G. H. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Hormone dependent cell cultures. (Mammalia) SATO H. D.Sc, Prof. — Dept. of Biol., Univ. of Pennsylvania, 217 Leidy Lab., PHILA- DELPHIA, Pa. 19104, U.S.A. SATO, T. D.Sc, D.phil.nat, Prof. (Emer.) — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, Japan • SAUER, H. W. Dr.rer.nat.habil. — Physiol. Lehrstuhl, Zool. Inst, der Univ., Berlinerstr. 15, 69 HEIDELBERG, W.Germany • a The significance of radioactively labelled DNA, RNA and protein for the events of primary determination and primary differentiation. Acheta domesticus (Orthoptera) b The regulation of growth (naturally synchronous mitoses) and differentiation (sporulation) of a plasmodium. The possibility of a sequential transcription of the genome via positive control mechanisms. Physarum polycephalum (Eumycetozoina) SAUNDERS, J. W., Jr. Ph.D., Prof. — Dept. of Biol. Sci., State Univ. of New York, 1400 Washington Ave., ALBANY, N.Y. 12203, U.S.A. • a The role of ectoderm in limb development. Gallus domesticus (Aves) b Factors affecting tract-specificity in embryonic feather areas. Same species as a c Ectoderm-mesoderm interactions in limb formation. Same species a as d Cellular deaths in morphogenesis. Gallus domesticus (Aves), Campanularia flexuosa (Hydrozoa) e Origin of electrical communication between blastomeres. Echinarachnius parma (Echinoidea) SAUSSEY, M. Dr.es Sci. — Lab. d'Embryol., Unite de Sci., Univ. de Caen, 14 CAEN, France a Regeneration, sexuality and diapause. Allolobophora icterica, A. spp. (Oligochaeta) SAUZIN, Miss M. J. — Lab. de Biol. Anim., Fac. des Sci., Univ. Paris Sud, 91 ORSAY, France a Ultrastructure du blasteme de regeneration: la differentiation des neoblastes. (Planariidae, Turbellaria) SAWADA, N. D.Sc, Prof. — Biol. Inst., Ehime Univ., Bunkyo-cho, MATSUYAMA, 790 Japan a Mitotic apparatus. (Echinodermata; Echiuroidea) b Ultrastructural changes in oogenesis and spermatogenesis. (Sipunculoidea; Echiuroidea; Gastropoda) SAWAI, T. B.A. — Embryol. Sect, Biol. Dept., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa-machi, Setagaya-ku, TOKYO 158, Japan a Studies of cleavage. Triturus pyrrhogaster (Urodela) SAXEN, L. O. M.D., Phil.lic, Prof. — Lab. of Exper. Embryol., III. Dept. of Pathol., Univ. of Helsinki, Haartmaninkatu 3, HELSINKI 29, Finland • a Mechanism of primary induction. Triturus spec. (Urodela) (with S. I. TOIVONEN, Dept. of Zool.) b Mechanism of kidney tubulogenesis. Mus musculus (Rodentia) (with J. J. WARTIO- VAARA and others) c Drug-induced teratogenesis in vitro. Mus musculus (Rodentia) (with A. LAHTI and I. KAITILA) d Virus-induced abnormalities in embryonic development. Homo sapiens (Primates) (with O. J. KOSKIMIES, Dept. of Zool.) e Virus-induced cataract. Gallus gallus (Aves) (with M. JAASKELAINEN) SAXOD, R. Lic.es Sci. — Lab. de Zool., Inst, de Rech. Biol., Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Experiments on the differentiation of the cutaneous sensory corpuscles. Gallus domesticus. Anas boschas (Aves) b Herbst's and Grandry's cutaneous sensory corpuscles: 1. origin; 2. electron microscopy of cholinesterases. Anas boschas, Gallus domesticus, Coturnix c. japonica (Aves) c Effects of x-rays on the innervation of the skin. Gallus domesticus (Aves) SAZHINA, Miss M. V. Cand.biol.sci. — Phenogenet. Lab., Inst, of Gen. Genet., Acad, of Sci. of the U.S.S.R., Profsojuznaya St. 7 (1), MOSCOW B-133, U.S.S.R. a Developmental study of mutant gene effects on cell proliferation. Mus musculus (Rodentia) 158 SCALI, V. Dr.Nat.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 5610C PISA, Italy a Cytology and development. (Phasmida) b Different time of ripening of male and female gonads in populations with female summer diapause; biosynthesis in larva and adult. Maniola jurtina (Satyridae, Lepidoptera) SCARANO, E. — Lab. Intern, di Genet, e Biofis., via G. Marconi 10, 80125 NAPOLI, Italy • SCHADE, J. P. M.D., Ph.D. — Netherl. Centr. Inst, for Brain Research, IJdijk 28, AM- STERDAM-O., Netherlands a Development and maturation of structure and function of the central nervous system: 1. Electrical patterns - EEG, evoked potentials; 2. Spreading depression and convulsion mechanisms; 3. Structural organization of dendritic patterns. Rattus norvegicus (Rodentia) SCHAFER, U. — Inst, fur Allgem. Biol., Univ. Dusseldorf, Mettmanner Str. 16-18, 4000 DUSSELDORF, W.Germany a Autoradiographic analysis of the protein metabolism during oogenesis in cells which had amplified the genes for ribosomal RNA. Calliphora erythrocephala (Diptera), Acilius sulcatus (Coleoptera) b Gene physiology, Y chromosome. Drosophila spp. (Diptera) c Genetic regulation of differentiation; male germ line cells. Drosophila hydei, D. neohydei (Diptera) SCHAIBLE, R. H. Ph.D. — Zool. Dept, Indiana Univ., BLOOMINGTON, Ind. 47401, U.S.A. SCHARLOO, W. Ph.D., Prof. — Genet. Inst., Univ. of Utrecht, Opaalweg 20, UTRECHT, Netherlands a Effect of environmental factors and selection on the development of mutant characters. Drosophila melanogastec (Diptera) b Induction of morphological aberrations by antimetabolites. Same species as a SCHEIB (PFLEGER), Mrs. D. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Ultrastructure de la lignee interstitielle dans les gonades. Gallus domesticus, Coturnix japonica (Aves), Mus musculus (Rodentia) SCHELLER, K. Dipl.Biol. — Zool. Inst. II der Univ., Berlinerstr. 15, 6900 HEIDELBERG, W.Germany a Synthesis and kinetics of RNA during oogenesis. Dysdercus intermedins (Hemiptera) SCHERFT, J. P. M.D. — Lab. for Cell Biol, and Histol., State Univ., Rijnsburgerweg 10, LEIDEN, Netherlands a Development and early stages of calcification of the diaphyseal bone collar of radii in 14-18-day-old embryos (electron microscopy). Mus musculus (Rodentia) SCHERRER, K. Dr. — Dept. de Biol. Molec, Inst. Suisse de Rech. Experim. sur le Cancer, rue Bugnon 21, 1011 LAUSANNE, Switzerland • a Red cell differentiation in erythroblastosis virus-induced anaemia. Gallus domesticus (Aves) (with S. P. MODAK and R. CORNUZ) b RNA synthesis, metabolism, and function in differentiating and undifferentiated cultured cells: erythroblasts, Gallus domesticus (Aves); Hela-cells, Homo sapiens (Primates) SCHIBLER, U. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8, CH-3012 Bern, Switzerland a Thyroxine and RNA synthesis in tadpole tissues. Xenopus laevis (Anura) (with R. WE- BER and G. RYFFEL) SCHIEBLER, T. H. Dr.med., Prof. — Dept. of Anat., Univ. of Wurzburg, Koellikerstr. 6, 87 WURZBURG, W.Germany a Experimental investigation of the kidney using actinomycin D in order to study the formation of enzymes during development. Rattus norvegicus (Rodentia) b Chemo-differentiation of different parts of the brain (e.g. nucleus ruber) by enzyme- histochemical and experimental methods. Rattus norvegicus (Rodentia) c Development of the terminal vascular bed of the heart. Rattus norvegicus (Rodentia) d Development of the vegetative heart innervation. Rattus norvegicus, Cavia cobaya (Rodentia) SCHIFF, J. A. Ph.D., Prof. — Dept. of Biol., Brandeis Univ., WALTHAM, Mass. 02154, U.S.A. • a Chloroplast development and inheritance: source of materials and information, and induction by light. Euglena spec. ( Euglenophyceae) b Formation of sulfate esters of carbohydrates and lipids, particularly in the formation of cell walls and photosynthetic membranes. (Algae) SCHILT, J. Lic.es Sci. — Lab. de Zool., U.E.R. Phys. Chim. Biol., Univ. Nancy I, Case Off. 72, 54 NANCY 01, France a Teratologic: origine, evolution et transmission des lesions, excroissances et duplications. Dugesia tigrina (Turbellaria) (avec F. STEPHAN) b Roles respectifs du systeme nerveux et des territoires dans la regeneration. Dugesia lugubris (Turbellaria) SCHIMKE, R. T. M.D., Prof. — Dept. of Pharmacol., School of Med., Stanford Univ., STANFORD, Calif. 94305, U.S.A. 159 a Hormonal regulation of oviduct development and specific cell function. Gallus domesticus (Aves) b Hormonal regulation of ovalbumin synthesis and ovalbumin messenger RNA content of oviduct tubular gland cells. Gallus domesticus (Aves) SCHIMMELPFENNIG, K. — Abt. Embryonalpharmakol., Pharmakol. Inst., Freie Univ., Thielallee 69, 1 BERLIN 33, W.Germany a Glycosaminoglucans in embryonic tissues: 1. differentiation (column chromatography, electrophoresis, micro methods); 2. influence of pharmaca. Rattus norvegicus (Rodentia), Homo sapiens (Primates) SCHLESINGER, A. B. Ph.D., Prof. — Dept. of Biol., Creighton Univ., 2410 California St., OMAHA, Neb. 68131, U.S.A. a Phase cinematographic time-lapse recording of morphogenetic movements of marginal tissue. Gallus spec. (Aves) SCHLOOT, W. Dr.rer.nat. — Inst, fur Humangenet., Univ. Hamburg, Martinistr. 52, 2000 HAMBURG 20, W.Germany a Developmental genetics of various enzymes (a.o. isoenzymes). Oryctolagus cuniculus (Lagomorpha) b Influence of psychotropic drugs and metabolism in embryogenesis. Same species as a SCHLOTER, G. Dr.med. — Anat. Inst, der Univ., Abt. fur Neuroanat., Nussallee 10, 53 BONN, W.Germany SCHMIALEK, P. Dr.med., Dipl.Chem. — Zentralinst. Biochem./Biophysik, Freie Univ. Berlin, Arnimallee 22, 1 BERLIN 33, W.Germany a Hormonal effects in metamorphosis. Tenebrio molitor (Coleoptera) , Calliphora erythro- cephala (Diptera) b Nucleo-cytoplasmic interrelations in somatic cells. Mus musculus, Mesocricetus auratus (Rodentia) SCHMID, V.S. Dipl.Phil.II. — Zool-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, 8006 ZURICH, Switzerland a Differentiation potentialities of cells. (Hydrozoa) b Tissue stability and metaplasia in the development of medusae buds. Podocoryne carnea (Hydrozoa) SCHMIDT, A. J. Ph.D., Prof. — Dept. of Anat., Coll. of Med., Univ. of Illinois, 1853 W.Polk St., P.O. Box 6998, CHICAGO, 111. 60680, U.S.A. a Hormonal influences on regenerating systems. Triturus viridescens (Urodela) b The chemistry of regenerating systems. Triturus viridescens (Urodela) c Fine structure of cells and tissues of regenerating systems. Triturus viridescens (Urodela) d Histo- and cytochemistry of repairing cutaneous wounds. Mus musculus (Rodentia) e Regeneration of normal and dystrophic muscle. Mus musculus (Rodentia) SCHMIDT, G. A. Dr.biol.sci., Prof. — Inst, of Anim. Evolut. Morphol. and Ecol., Acad, of Sci. of the U.S.S.R., Lenin Ave. 33, MOSCOW W-71, U.S.S.R. a Embryology. Camelus bactrianus (Artiodactyla) SCHMIDT, G. H. Dr.rer.nat. — Inst, fiir Angew. Zool., Univ. Wiirzburg, Rontgenring 10, 87 WURZBURG, W.Germany a Postembryonic development of holometabolic forms. Esp. Formica polyctena, F. pratensis (Hymenoptera) SCHNEIDER, H. M.D. — Inst. Natl, de la Sante et de la Rech. Med., Unite de Physiol. placent., Hop. Saint-Antoine, 184 rue du Faubourg Saint-Antoine, 75 PARIS Xlle, France SCHNEIDERMAN, H. A. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. • a Selection and analysis of mutants with defects in their endocrine systems, in pattern forma- tion and in intercellular communication. Drosophila melanogaster (Diptera) b Effects of juvenile hormones and ecdysones on organisms other than insects; mode of action of juvenile hormone. Hyalophora cecropia, Tenebrio molitor, Galleria mellonella, Pyrrhocoris apterus (Insecta and other Arthropoda) SCHNETTER, W. Dr.rer.nat. — Zool. Inst, der Univ., Physiol. Lehrstuhl, Berlinerstr. 15, 6900 HEIDELBERG, W.Germany a Early embryology. Leptinotarsa decemlineata (Coleoptera) b Morphogenetic function of egg components; transplantation of nucleic and ooplasm. Same species as a c Synthesis of RNA and protein during early embryogenesis. (Insecta) SCHOELLER (RACCAUD), Mrs. J. Dr.es Sci., Prof. — Lab. de Physiol, des Insectes, Univ. de Paris VI, 7 quai Saint-Bernard, 75 PARIS Ve, France • a Experiments sur la cephalogenese larvaire et imaginale. Calliphora spec. (Diptera) SCHOLL, A. Ph.D. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8 CH-3012 BERN, Switzerland a Genetical and biochemical analysis of creatine kinase isoenzymes during differentiation. (Teleostei) b Genetic and epigenetic control of protein synthesis during cytodifferentiation with emphasis to post-translational control of gene products (creatine kinase isoenzymes). (Teleostei and other Vertebrata) 160 SCHOLL, G. Dr.rer.nat. — I. Zool. Inst., Friedrich-Alexander Univ., Universitatsstr. 19, 852 ERLANGEN, W.Germany a Development. Limulus polyphemus (Xiphosura) SCHOONEVELD, H. Ph.D. — Lab. of Entomol., Agric. Univ., Binnenhaven 7, P.O.B. 62, WAGENINGEN, Netherlands a Influence of juvenile hormones on embryology, morphogenesis, metamorphosis and reproduction and their use as possible insecticides. Various spp. (Insecta) b Elucidation of the nature and physiological significance of various neurosecretory hormones. Leptinotarsa decemlineata (Coleoptera) SCHOTTfi, O. E. Ph.D., Prof.(Emer.) — Dept. of Biol., Amherst Coll., AMHERST, Mass. 01002, U.S.A. • SCHOUTEN, A. A. Med.drs. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., Netherlands a Early differentiation of the endoderm. Mus musculus (Rodentia) (with C. D. A. VER- WOERD and C. G van OOSTROM) SCHOUTEN, S. C. M. Drs. — Genet. Inst., Univ. of Utrecht, Opaalweg 20, UTRECHT, Netherlands a Development of quantitative characters. Drosophila melanogaster (Diptera) SCHOWING, J. Dr.es Sci., Prof. — Inst, de Biol. Anim., Fac. des Sci., Univ. de Fribourg, 1700 FRIBOURG, Switzerland a Skull morphogenesis and cephalic induction. Gallus gallus (Aves) b Interspecific associations between various organs. Gallus gallus, Coturnix spec. (Aves) c Teratogenesis. Gallus gallus (Aves) SCHRAMM, B. Dr.en Med., Prof. — Lab. d'Histol.-Embryol. B, Fac. de Med., 45 rue des Sts. Peres, 75 PARIS Vie, France SCHREIBER, B. Prof. — 1st. di Zool, Univ. di Parma, Via Universita 12, 43100 PARMA, Italy • a Experimental morphology of bone induction and inhibitory action of thalidomide. Mus musculus, Rattus spec. (Rodentia) (with L. RINALDI) SCHREIBER, G. Ph.D., Prof. — Dept. of Gen. Biol., Inst, of Biol. Sci., Fed. Univ. of Minas Gerais, Rua Carangola 288 - 4candar, C.P. 253, BELO HORIZONTE, M.G, Brazil a Relations between DNA and nuclear size (non-histonic proteins) among specialized tissues of adult, embryonic tissues, and germinal line. Biomphalaria (— Australorbis) glabrata (Pulmonata) , Aplysia brasiliana. Bulla striata (Ophisthobranchia, Gastropoda) b Nuclear size and DNA content (cytophotometry) of different organs in embryo and larva. Ascidia nigra (Ascidiacea) c Comparison between somatic and germinal chromosomes. Parascaris equorum (Nematoda) SCHROEDER, P. C. Ph.D. — Dept. of Zool., Coll. of Sci. and Arts, Washington State Univ., PULLMAN, Wash. 99163, U.S.A. a Oogenesis and its hormonal control: 1. in vitro study of possible material transfer from coelomocytes to coelomic oocytes; 2. nucleolus formation in eleocytes and auto- radiography of uridine metabolism; 3. possible hormonal control of fertilizin synthesis. Nereis gcubei (Polychaeta) SCHROEDER, Th. E. Dr. — Dept. of Anat., Sch. of Med., Stanford Univ., STANFORD, Calif. 94305, U.S.A. • SCHRYVER, H. F. Ph.D., D.V.M., Prof. — Dept. of Large Anim. Med., Equine Research Program, New York State Vet. Coll., Cornell Univ., ITHACA, N.Y. 14850, U.S.A. a Morphologic and biochemical aspects of skeletal development of the early embryo in organ culture. (Mammalia) b Studies on chondrocyte hypertrophy including influences on hypertrophy and fate of hypertrophic cells. (Mammalia) c Calcium metabolism in development. (Mammalia) SCHUBIGER, G. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol., Univ. of Califor- nia, IRVINE, Calif. 92664, U.S.A. a Analysis of mutants with defective endocrine systems. Drosophila melanogaster (Diptera) b Developmental capacities of imaginal discs and embryos. Same species as a SCHUBIGER (STAUB), Mrs. M. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol., Univ. of California, IRVINE, Calif. 92664, U.S.A. a Analysis of chemically induced temperature sensitive mutants effecting late larval, prepupal, and pupal stages. Drosophila melanogaster (Diptera) SCHUETZ, A. W. Ph.D. — Dept. of Popul. Dynamics, Sch. of Hyg. and Public Health, Johns Hopkins Univ., 615 N.Wolfe St., BALTIMORE, Md. 21205, U.S.A. a Control and secretion of gonadotrophic hormones. (Mammalia) b Gonadal steroidogenesis. (Amphibia; Mammalia) c Testis differentiation and spermatogenesis. (Mammalia) d Oocyte maturation. (Asteroidea; Amphibia; Mammalia) e Membrane structure and function. (Asteroidea; Amphibia) f Protein synthesis in oocytes. (Asteroidea; Amphibia; Mammalia) 161 SCHULMAN, H. M. Ph.D. — Lady Davis Inst, for Med. Research, 3755 Cote St.Catherine Rd., MONTREAL 249, Que., and Dept. of Biol., McGill Univ., MONTREAL 3, Que., Canada * a Development of erythroid cells and control of erythropoiesis in adult animals in health and disease. Oryctolagus cuniculus (Lagomorpha), Rattus spec, Mus musculus (Rodentia), Homo sapiens (Primates) b Erythropoiesis. Phoronopsis (Phoronidea; Holothuroidea) c Development of root nodules and the biosynthesis of leghemoglobin. (Leguminosae) SCHULTZ, R. L. Ph.D., Prof. — Dept. of Human Biol., Univ. of Colorado Dent. Sch., 4200 E. 9th Ave., DENVER, Colo. 80220, U.S.A. a Placental transport. Rattus spec. (Rodentia), Canis familiaris (Carnivora) b Biochemistry of teratogenesis. Gallus domesticus (Aves), Rattus spec. (Rodentia), Canis familiaris (Carnivora) SCHUMACHER, G. H. Dr.sc.med., Dr.med.dent, Prof. — Anat. Inst., Med. Bereich, Univ. Rostock, Gertrudenstrasse 9, 25 ROSTOCK 1, East.Germany a Allometrische Organuntersuchungen und Osteogenese. Mesocricetus auratus (Rodentia) b Craniogenese und Osteogenese. Larus ridibundus, Gallus domesticus (Aves) c Experimentelle Untersuchungen zur Frage von Organ- und Schadelveranderungen auf Grund statischer Veranderungen in der Postnatalperiode (Amputation der Vorderextremi- taten) . Rattus norvegicus (Rodentia) d Untersuchungen des postnatalen Schadel- und Organwachstums nach pranatalem Einfluss peristatischer Faktoren (akustische und optische Reize, diatetische Einflusse). Rattus norvegicus (Rodentia) , Oryctolagus cuniculus (Lagomorpha) SCHWALM, F. E. Dr.phil.nat. — Dept. of Biol. Sci., Illinois State Univ., NORMAL, 111. 61761, U.S.A. a Synthesis, storage and utilization of morphogenetic agents in oogenesis and early embryo- genesis (electron microscopy, autoradiography). Coelopa frigida (Diptera) b Controlling factors and structural changes involved in egg diapause. Melanoplus dif- ferentiate (Orthoptera) SCHWARTZ, R. J. B.Sc. — Dept. of Biol., Grad. Sch. of Arts & Sci., Lab. of Histol. and Embryol., Sch. of Dent. Med., Univ. of Pennsylvania, PHILADELPHIA, Pa. 19104, U.S.A. SCHWARTZ, V. Dr.rer.nat, Prof. — Zool. Inst, der Univ., Holderlinstr. 12, 74 TUBIN- GEN, W.Germany SCHWEICHEL, J.-U. Dr. — II. Anat. Inst, der Freien Univ. Berlin, Kon.-Luise-Str. 15, 1 BERLIN 33, W.Germany a Development and teratology of peripheral nervous system. Rattus spec, Mus musculus (Rodentia) b Cell death during development and teratological events in this field. Same species as a SCHWEIGER, H. G. Dr.med., Prof. — Max-Planck-Inst. fur Zellbiol., Anton-Dohrn-Weg, Postfach 1009, 294 WILHELMSHAVEN, W.Germany a Biochemical aspects of nucleo-cytoplasmic interrelationships, (unicellular Algae) b Autonomy of chloroplasts. (Algae) c RNA synthesis in anucleate cells. (Algae) d Cooperation between different subcellular components in morphogenesis. (Algae) SCHWEISTHAL, M. R. Ph.D., Prof. — Dept. of Anat., Div. of Med. Sci., Carolina Univ., Box 2701, GREENVILLE, N.C. 27834, U.S.A. a Organ culture of primordia. Rattus norvegicus (Rodentia) SCHWOCHAU, M. E. Dr.rer.nat. — Inst, fur Allgem. Biol., Univ. Dusseldorf, Mettmanner Str. 16-18, 4000 DUSSELDORF, W.Germany a Molecular biology and genetics of the Y-chromosome. Drosophila spp. (Diptera) SCISKAWSKI, A. M.D. — Dept. of Biol, and Embryol., Acad, of Med., ul. Kopernika 7, KRAK6W, Poland a Regeneration of the central nervous system. Triturus spec, Amby stoma spec. (Urodela) SCONZO, Miss G. — 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, Italy a RNA synthesis in early development. Paracentrotus lividus (Echinoidea) SCOTT, F. W. D.V.M., Ph.D. — Dept. of Microbiol., N.Y. State Vet. Coll., Cornell Univ., ITHACA, N.Y. 14850, U.S.A. a Teratogenesis of mumps virus and feline panleukopenia virus: transplacental and fetal infection, passage of virus across the blood-brain barrier; teratologic changes, especially cerebellar hypoplasia, hydrocephalus, and endocardial fibroelastosis. Felis catus (Carni- vora) b Teratogenesis of bovine viral diarrhea virus, producing cerebellar hypoplasia, cataracts, retinal degeneration, optic nerve degeneration, mummified fetuses, abortions, and other changes when fetal viral infection occurs at certain stages of gestation. Bos taurus (Artiodactyla) SCOTT, T. K. Ph.D., Prof. — Dept. of Botany, Univ. of North Carolina, CHAPEL HILL, N.C. 27514, U.S.A. 162 a Relation between auxin transport and growth in seedlings as influenced by age and light. Pisum sativum (Leguminosae), Zea mays (Gramineae) b Apical dominance; characterization of the hormonal control exhibited by shoot apices in lateral bud suppression. Pisum sativum (Leguminosae), Coleus blumei (Labiatae) SCRIBA, M. E. L. Ph.D. — Zool. Inst, der Univ., Ketzerbach 63, 355 MARBURG/Lahn, W.Germany a Developmental abnormalities caused by lethal factors. Drosophila melanogaster (Diptera) SEAGO, J. L. Ph.D. — Dept. of Bot. and Physiol., State Univ. Coll., OSWEGO, N.Y. 13126, US.A. SEARLS, R. L. Ph.D., Prof. — Dept. of Biol., Temple Univ., Broad and Berks St., PHILA- DELPHIA, Pa. 19122, U.S.A. • SEDLACEK, J. M.D., Ph.D. — Lab. of Embryophysiol., Inst, of Physiol., Charles Univ., Albertov 5, PRAHA 2, Czechoslovakia a Development of spontaneous and evoked phasic activity of CNS in prenatal period. (Aves; Mammalia) b Development of low and high frequency impedance in fetal brain tissue. (Aves; Mam' malia) c Development of steady and membrane potential in fetal brain. (Aves; Mammalia) d Development of extracellular environment of fetal brain (physical and chemical). (Aves; Mammalia) e Development of membrane ATP-ase system in fetal brain tissue. Gallus domesticus (Aves) SEDRA, S. N. Ph.D., Prof. — Dept. of Zool., Fac. of Sci., Alexandria Univ., Moharram Bey, ALEXANDRIA, Egypt • SEECOF, R. L. Ph.D. — Dept. of Biol., City of Hope Med. Center, 1500 E. Duarte Rd., DUARTE, Calif. 91010, U.S.A. a In vitro differentiation of embryonic cells; which embryonic stages give cells competent to do this ?; identity of differentiating cells. Drosophila melanogaster (Diptera) §EFTALIO£LU, Miss A. — Inst, of Histol. and Embryol., Med. Fac, Hacettepe Sci. Center, ANKARA, Turkey a Development and differentiation of mast cells after stimulation with 48/80 (histology and histochemistry). Rattus norvegicus (Rodentia) b Ultrastructural development and differentiation of mast cells. Rattus norvegicus (Rodentia) SEGAL, S. J. Ph.D. — Biomed. Div., The Population Council, Rockefeller Univ., York Ave. and 66th St., NEW YORK, N.Y. 10021, U.S.A. • a Immunologic analysis of pituitary gonadotrophin function: development and species specificity. (Vertebrata) b Mechanism of hormone action. (Vertebrata) c Action of blastotoxic chemical agents. (Vertebrata) d Oogenesis in the constant-estrus female. Rattus norvegicus (Rodentia) e Studies on RNA in implantation. Rattus norvegicus (Rodentia), (Primates) SEHGAL, P. P. Dr. — Dept. of Biol., East Carolina Univ., P.O.Box 2577, GREENVILLE, N.C. 27834, US.A. a Factors regulating urease in cotyledons in vi t r o. (Angiospermae) b Ontogenesis of urease synthesis. Canavalia ensiformis (Papilionaceae) SEICHERT, V. MUDr. — Dept. of Anat., Charles Univ., U nemocnice 3, PRAHA 2, Czechoslovakia a Experimental analysis of limb formation. Gallus domesticus (Aves) SEIDEL, F. Dr.phil., Prof.(Emer.) — Zool. Inst, der Univ., Ketzerbach 63, 355 MARBURG/ Lahn, W.Germany • a Entwicklungsphysiologie im Stadium der Furchung und Bildung der Korpergrundgestalt. Platycnemis spec. (Odonata) , Oryctolagus cuniculus (Lagomorpha) SEIDL, W. E. Dr.med. — Anat. Inst, der Univ., Kreuzbergring 36, 34 GOTTINGEN, W.Germany a Ultrastruktur der Leberentwicklung. Homo sapiens (Primates) SEIGER, M. B. Ph.D., Prof. — Dept. of Biol. Sci., Div. of Sci. and Engin., Wright State Univ., Col. Glenn Highway, DAYTON, Ohio 45431, U.S.A. a The genetics and development of color and color pattern in the white and blue morphs. Anser caerulescens (Aves) SEITZ, K.-A. Dr.rer.nat. — Zool. Inst, der Univ., Ketzerbach 63, 355 MARBURG/Lahn, W.Germany a Ultrastructure of organ development, especially hemocytes and the storage tissue in the midgut. Cupiennius salei (Ctenidae, Araneida, Arachnida) b Cell migration during early development (electron microscopy) . Same species as a SEKERIS, C. E. Ph.D., Prof. — Physiol.-Chem. Inst., Med. School, Univ. Marburg, 355 MARBURG-Lahnberge, W.Germany a Protein and RNA synthesis during metamorphosis; correlation with hormonal (ecdysone) secretion. Calliphora ecythrocephala (Diptera) b Mode of action of juvenile hormone. Periplaneta amevicana (Blattariae) , Calliphora erythrocephala (Diptera) 163 SEKIGUCHI, K. Ph.D. — Inst, of Zool., Tokyo Kyoiku Univ., Otsuka 3-29-1, Bunkyo-ku, " TOKYO,' Japan a Transplantation experiments with the egg and function of the lateral organ in the embryo. Tachypleus tridentatus (Xiphosura) b Embryology. Propallene longiceps (Pantopoda) •wTrv-ixi SELLER, Miss M. J. Ph.D. — Paediat. Research Unit, Guy's Hosp. Med. School, LONDON S.E.I, England _ a Haematology of congenital anaemia in the W-series mutants. Mus musculus (Rodentia) b Experimental teratology. (Mammalia) c Experimental production of chimaeras by egg fusion and tissue transplantation. Same species as a D d Transplantation of liver to ectopic sites in newborns and adults. Mus musculus, Kattus spp. (Rodentia) SELMAN G. G. Ph.D. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. • a Ultrastructural and experimental study of cleavage. Triturus alpestris (Urodela), Xenopus laevis (Anura) . b Ultrastructural changes during growth. Micrasterias thomasiana (Desmidiaceae) (with C. H. WADDINGTON) n ^ 0^n inn SELVERSTON, A. I. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box lUy, ^ LA JOLLA, Calif. 92037, U.S.A. a Development of giant fiber system. Loligo opalescens (Cephalopoda) vrvrr\ SEMBA, R. M.D. — Dept. of Anat., Kyoto Univ., Konoe-cho, Yoshida, Sakyo-ku, KYOTO 606, Japan a Epidemiology of cardiovascular anomalies in embryos. Homo sapiens (Primates) SEMBRAT K. Ph.D., D.Sc, Prof. — Inst, of Zool., Univ. of Wroclaw, ul. Sienkiewicza 21, " WROOAW 2, Poland • a Cytological and cytochemical studies in early development. Embletoma pallida (Upistno- branchia. Gastropoda) b Experiments on morphogenetic role of endocrines in metamorphosis. (Amphibia) SENGEL Ph. Dr.es Sci., Prof. — Lab. de Zool., Inst, de Recherches Biol., Univ. Scient. et Med.de Grenoble, Cedex 53, 38 GRENOBLE, France • a Skin and feather development; production of supernumerary pterylae; mechanisms of feather pattern development. Gallus domesticus (Aves) b Ultrastructure of skin development. Pleurodeles waltlii (Urodela), Gallus domesticus (Aves) c Role of axial organs in limb and skin development. Gallus domesticus, Coturmx c. japomca. Anas boschas (Aves) SENN, D. G. Ph.D. — Dept. of Comp. Neurol., Zool. Anstalt der Univ., Rheinsprung y, CH-4051 BASEL, Switzerland a Fundamental study of comparative embryology of the central nervous system. (Pisces; Amphibia; Reptilia) b Comparison of forebrain and midbrain. (Amphibia; Reptilia) SENSENIG E. C. Ph.D., Prof. — Dept. of Anat., Univ. of Alabama Med. Center, 1919 Seventh Ave. South, BIRMINGHAM, Ala. 35233, U.S.A. • SENTEIN, P. Dr.en Med., Dr.es Sci., Prof. — Lab. d'Histol., Fac. de Med., Univ. de Mont- pellier, 34 MONTPELLIER, France • SERMAN, D. D.Sc. — Inst, of Biol., Univ. of Zagreb, Salata 3, 41001 ZAGREB, Yugo- a Analysis of soluble proteins in organogenesis. Rattus norvegicus (Rodentia) (with N. SKREB) b Protein patterns in embryo-derived teratocarcinomas and in host serum (polyacrylamide electrophoresis). Mus musculus (Rodentia) (with D. SOLTER) SERRI, F. M.D., Prof. — Dept. of Dermatol., Univ. of Pavia, Policlinico S.Matteo, 27100 PAVIA, Italy a Morphology and physiology of fetal skin. Homo sapiens (Primates) b Microbiochemistry and histochemistry of carbohydrate and intermediate metabolism enzymes in fetal skin, especially developmental changes of enzyme activities. Homo sapiens (Primates) SETO, F. Ph.D. — Dept. of Zool., Univ. of Oklahoma. 730 Van Vleet Oval, Rm. 222, NORMAN, Okla. 73069, U.S.A. a The ontogenetic appearance and maturation of the primary homograft rejecting and primary humoral antibody producing potential in embryos and growing juveniles. Gallus domesticus (Aves) SETOGUTI, T Dr.Med., Prof. — 3rd Dept. of Anat., Nagasaki Univ., School of Med., Sakamoto-machi, NAGASAKI 852, Japan a Electron microscopy of mast cell development. Triturus pyrrhogaster (Urodela) SEVCENKO, Mrs. G. MUDr. — Inst, of Embryol., Fac. of Med., Charles Univ., Albertov 4. PRAGUE 2, Czechoslovakia 164 a Development of taste buds (electron microscopy, cytochemistry). Homo sapiens (Primates) SHAAYA, E. Ph.D. — Dept. of Biol. Sci., Purdue Univ., LAFAYETTE, Ind. 47907, U.S.A. a Control of nucleic acids and protein synthesis by ecdysone and juvenile hormone during postembryonic development. Periplaneta americana (Blattariae), Calliphora erythrocephala (Dipteca) b The role of juvenile hormone in the synthesis of protocatechuic acid glucoside in the accessory sex glands. Periplaneta americana (Blattariae) SHAH, R. V. Ph.D., Prof. — Dept. of Zool., Fac. of Sci., M.S. Univ. of Baroda, BARODA- 2, India a Tail regeneration in embryos and adults. Gekko spec, Mabuya spec. (Lacertiha) b Liver regeneration and physiology. (Vertebrata) c Spleen, pancreas, and lymph gland regeneration. (Vertebrata) d Physiology of developing muscles (respiration) . (Vertebrata) SHAHAM. Y. M.S. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL-AVIV, Israel a Reproductive biology. Psammomys obesus (Rodentia) SHALGI (HARSINA), Mrs. R. B.S. — Dept. of Zool., Tel-Aviv Univ., 155 Herzl St., TEL- AVIV, Israel a Composition of follicular fluid. Homo sapiens (Primates) b Microcinematography of fertilization. Rattus norvegicus (Rodentia) SHAMOTO M. M.D. — Div. of Radiotherapy, Oncology Lab., Mercy Hosp., 1400 Locust St., PITTSBURGH, Pa. 15219, U.S.A. a Ultrastructural localization of lens protein synthesis in the embryo. Callus domesticus (Aves) SHANKLIN. D. R. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, 1101 East 57th St., CHICAGO, 111. 60637, U.S.A. SHAPIRO, S. Ph.D., Prof. — Dept. of Botany, Univ. of Massachusetts, AMHERST, Mass. 01002, U.S.A. * a Effects of cytokinins on morphogenesis: 1. localization of sites of flower formation; 2. release of growth of lateral branches; 3. control of senescence. Xanthium strumarium (Compositae) b Growth control of lateral buds: possible basal dominance rather than apical dominance. Xanthium strumarium (Compositae) ,^T1VT .^.r^r. SHAPPIRIO, D. G. Ph.D., Prof. — Dept. of Zool., Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Developmental physiology and biochemistry, especially growth and metamorphosis. (Saturniidae etc., Lepidoptera; Chironomidae etc., Diptera) SHARMA, K. K. M.Sc. — Dept. of Biochem., Fac. of Sci., Allahabad Univ. ALLAHA- BAD-2, U.P., India a Enzymes in the egg and in the fat body from larva till young adult. Philosamia ricini (Lepidoptera) (with R. PANT) ™.TrwM ^ SHAVER, Miss E. L. Ph.D. — Dept. of Anat, Univ. of Western Ontario, LONDON, Ont, Canada SHAVER, J. R. Ph.D., Prof. — Zool. Dept., Biol. Research Center, Michigan State Univ., EAST LANSING, Mich. 48823, U.S.A. • a Specificity of jelly-coat in fertilization (immunology, biochemistry). Rana clamitans, R. pipiens (Anura) b Fluorescence microscopy and histochemistry of oviducal secretions. (Ranidae, Anura) c Effects of tissue-specific antibodies on embryonic differentiation. (Anura) d Antigenic localization on spermatozoa (electron microscopy, immunofluorescence). Rana pipiens (Anura) ,,^^Tr SHEN S. C. Ph.D. — Dept. of Anat., Columbia Univ., 630 W. 168th St., NEW YORK, N.Y. 10032, U.S.A. „ , c • SHEPARD, T. H. M.D., Prof. — Central Lab. for Human Embryol., Dept. of Pediat., School of Med., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Effect of rubella virus on tne fetus. Homo sapiens (Primates) b Effect of galactoflavin on the fetus. Rattus spec. (Rodentia) c Histology and biochemistry of achondroplasia (ac/ac strain; organ culture, radio-isotopes). Oryctolagus cuniculus ( Lagomorpha) , Homo sapiens (Primates) d Effects of teratogens on embryos in vitro. Rattus norvegicus (Rodentia) (with T. TANIMURA) e Effect of cytochalasin B on closure of the anterior neuropore in vitro. Callus domesticus (Aves), Rattus spec. (Rodentia) SHERBET, G. V. Ph.D. — Dept. of Biochem. Pathol., Univ. Coll. Hosp. Med. School, University St., LONDON WC1E 6JJ, England a Morphogenetic effects of follicle-stimulating hormone. Gallus domesticus (Aves) (with M. S. LAKSHMI) / b Behaviour of neoplastic cells transplanted into embryos. Gallus domesticus (Aves) (with M. S. LAKSHMI) c Biochemical and biophysical characterization of the cell surface using natural pH gradients, (with M. S. LAKSHMI) 165 SHERIDAN, J. D. D.Phil. — Dept. of Zool., Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. SHIELD, J. W. Ph.D. — Zool. Dept., Univ. of W.Australia, NEDLANDS, W.Austr. 6009, Australia SHIMADA, T. Ph.D. — Dept. of Hygiene and Prev. Med., School of Med., Niigata Univ., Asahimachi, NIIGATA-City, 951 Japan a Cytogenetics of the development of embryos in vitro. Mus musculus, Rattus spec, Mesocricetus auratus (Rodentia) b Electron microscopy of chromosome structures. Same species as a SHIOMI, T. Dr., Prof. — Dept. of Genet., School of Med., Nagasaki Univ., 12-4, Sakamoto- machi, 852 NAGASAKI, Japan a Radiation genetics (embryo, germ cells). Dcosophila melanogaster (Diptera) SHIRAI, H. B.Sc. — Lab. of Physiol., Ocean Research Inst., Univ. of Tokyo, Minamidai 1-15, Nakano-ku, TOKYO, 164 Japan a Mechanism of spawning. Asterias amurensis, Asterina pectinifera (Asteroidea) b Electron microscopic study on spawning and oocyte maturation. (Asteroidea) c Biochemical pathway of 1-methyladenine formation in ovary. (Asteroidea) SHOGER, R. L. Ph.D., Prof. — Dept. of Biol., Carleton Coll., NORTHFIELD, Minn. 55057, U.S.A. a Migration of primordial germ cells from tritiated thymidine labelled heterotypic grafts of germinal crescent. Gallus gallus (Aves) b Activation of sperm by material derived from eggs or oviduct; artificial activators; sperm-egg interaction. Limulus polyphemus (Xiphosura) SHORO, A. A. M.Phil. — Dept. of Anat., St. Thomas's Hosp. Med. School, LONDON S.E.I, England a Production of limb deformities and growth retardation in the fetus with neuromuscular blocking agents. Rattus norvegicus (Rodentia) SHOSTAK, S. Ph.D. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, U.S.A. • a The mechanism and control of cell movement during homeostasis and budding; role of collagen-like protein in the mesoglea. Hydra viridis, H. oligactis, H. pseudoligactis, H. piracdi, H. fusca (Hydrozoa) SHUKUYA, R. M.D., Prof. — Dept. of Biochem., Nippon Med. School, 1-1-5 Sendagi, Bunkyo-ku, TOKYO, Japan a Genetic control of hemoglobin switch during metamorphosis. Rana catesbeiana (Anura) (with A. KAJITA) b Change of isozyme patterns during metamorphosis. Rana catesbeiana (Anura) (with A. KAJITA) c Control of enzyme formation and activity in liver during development. Rana catesbeiana (Anura) (with H. NAGANO) SHULOV, A. D.Sc, Prof. — Dept. of Entomol. and Venomous Anim., Hebrew Univ., JERUSALEM, Israel a Regeneration, transplantation, and tissue implantation. Leiurus quinquestriatus (Scorpion- idea) SHUPE, J. L. D.V.M., Prof. — Vet Dept., Utah State Univ., LOGAN. Utah 84321, U.S.A. a Congenital malformations, especially musculoskeletal and cleft palate. Bos taurus, Ovis aries ( Attiodactyla) b Congenital anterior polar cataracts, cleft lip and cleft palate. Canis familiaris (Carnivora) c Congenital multiple exostosis (hereditary osteochondromatosis). Equus caballus (Peris- sodacfyla) d Fluorides as related to placental transfer and intra-uterine development. Ovis aries. Bos taurus (Attiodactyla) e Congenital skeletal anomalies as related to loco plants. (Astragalus spp. and other Papilionaceae). Ovis aries, Bos taurus ( Artiodactyla) SICHAZULIDZE, Mrs. T. A. Cand.biol.sci. — Dept. of Anim. Embryol.. Inst, of Zool., Acad, of Sci. of the Georgian SSR., 31 Chavchavadze Ave., TBILISI 30, U.S.S.R. a Interaction between eye cup and embryonic tissue implanted after lens removal in embryos and larvae. (Amphibia) SICHEL, G. M.D., Prof. — 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 CATANIA, Italy a Regeneration (origin of blastema cells). (Sabellimorpha, Nereidae, Polychaeta) SIDKY, Y. A. Ph.D. — Dept. of Zool., Fac. of Sci., Univ. of Alberta, EDMONTON, Alta., Canada SIDOROVA, Mrs. V. F. Dr.biol.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Growth and regeneration of the inner organs and their regulation. Oryctolagus cuniculus (Lagomorpha), Rattus norvegicus, Mus musculus, Mesocricetus auratus (Rodentia) SIGNORET, J. Dr.es Sci., Prof. — Lab. d'Embryol., Unite de Sci., Univ. de Caen, 14 CAEN, France • 166 a Study of nuclear differentiation and specific activities by means of nuclear transplantation. Ambystoma mexicanum (Urodela) b La cinetique cellulaire au cours de la segmentation; modalites, determinisme, signification. Ambystoma mexicanum (Urodela) SIGOT, M. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Morphogenese du tube digestif en culture in vitro, specialement ultrastructure et enzymologie de l'estomac. Gallus spec. (Aves) (avec M. F. SlGOT) SIGOT (LUIZARD), Mrs. M. F. Lic.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Cancerogenese chimique du foie, etudiee en culture organotypique. Rattus norvegicus (Rodentia) b Ultrastructure et enzymologie de l'estomac de l'embryon. Gallus gallus (Aves) (avec M. SIGOT) SILSN, L. K. P. Fil.Dr., Prof. — Zool. Inst., Univ. of Stockholm, Radmansgatan 70 A, Box 6801, S-113 86 STOCKHOLM, Sweden a Embryology. (Bryozoa) SIMKISS, K. Ph.D., Prof. — Dept. of Zool. and Comp. Physiol., Queen Mary Coll., LON- DON E.l, England a Respiratory acidosis and acid-base balance in embryos. (Aves) b Movement of Ca45 through the embryos in eggs subjected to carbon dioxide in the air. Gallus domesticus (Aves) SIMON, M. I. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Mechanism of molecular assembly in development of subcellular organelles SIMPSON S. B. Ph.D. — Dept. of Anat., Developm. Biol. Center, Case Western Reserve Univ.. 2109 Adelbert Rd., CLEVELAND, Ohio 44106, U.S.A. SINCLAIR, J. G. Ph.D., Prof. (Emer.) — Dept. of Anat., Med. Branch, Univ. of Texas, GALVESTON, Tex. 77550, U.S.A. a Development of vertebral vascular pattern in embryos. Stenella coeruleoalbus (Cetacea) b Development of central nervous system and receptors. Tursiops truncatus, Stenella coeruleoalbus, Eschrichtius gibbosus, Physeter catodon (Cetacea), Callorhinus ursinus (Pinnipedia) SINGER. M. Ph.D., Prof. — Dept. of Anat., Developm. Biol. Center, School of Med., Case Western Reserve Univ., 2119 Abington Rd., CLEVELAND, Ohio 44106, U.S.A. • a Regeneration. (Amphibia) b The neurotrophic control of limb regeneration. Triturus viridescens (Urodela) SINGER, R. D.Sc, Prof. — Dept. of Anat., Div. of Biol. Sci., Univ. of Chicago, 1025 East 57th St., CHICAGO, 111. 60637, U.S.A. a General embryology Hystvix africaeaustralis (Rodentia), Homo sapiens (Primates) SINGER (ALTBEKER), Mrs. R. Ph.D. — Endocrinol. Unit of the Rogoff-Wellcome Med. Research Inst., Beilinson Hosp., PETAH-TIKVA, Israel a Histone content of developing ovaries. Bos taurus (Artiodactyla) SINGH, I. Ph.D., Prof. — Dept. of Anat., Med. Coll., ROHTAK, India a Asymmetry in muscle and bone weight in limbs of fetuses. Homo sapiens (Primates) SINGH, J. B. M.Sc. — Dept. of Biochem., Fac. of Sci., Allahabad Univ., ALLAHABAD-2, U.P., India a Lipid metabolism and characterization of phospholipids during development from embryo till young adult (thin layer and gas-liquid chromatography). Philosamia ricini (Lepidop- tera) (with R. PANT and G. Ch. NAUTIYAL) SINGH, R. P. Ph.D. — Dept. of Anat., Univ. of W.Ontario, LONDON, Ont., Canada SINITSINA, Miss V. F. — Lab. of Developm. Cytogenet, Inst, of Developm. Biol., Acad. of Sci. of the U.S.S.R., 26 Vavilov St., MOSCOW 117133, U.S.S.R. a DNA synthesis and cell cycles during neural retina regeneration. Triturus vulgaris, T. cristatus (Urodela) (with O. G. STROEVA and V. I. MITASHOV) SIRAKAMI, K. I. D.Sc, Prof. — Dept. of Developm. Biol., Zool. Inst., Kyoto Univ., Kitashirakawa. Sakyo-ku, KYOTO, 606 Japan • SIRLIN. J. L. Dr.nat.sci., Prof. — Dept. of Anat., Med. Coll., Cornell Univ., 1300 York Ave., NEW YORK, NY. 10021, U.S.A. • a Functional correlation of transfer RNA in the embryo and placenta. Mus musculus (Roden- tia) SJOLTE BYSKOV, Mrs. A. G. — Finsen Lab., Finsen Inst., 49 Strandboulevard, DK-2100 COPENHAGEN, Denmark SJQSTRAND, F. S. M.D., Ph.D., Prof. — Dept. of Zool., Univ. of California, LOS ANGELES, Calif. 90024, U.S.A. SKALKO, R. G. Ph.D. — Embryol. Lab., Birth Defects Inst., N.Y. State Dept. of Health, 84 Holland Ave.. ALBANY, N.Y. 12208, U.S.A. a Experimental teratogenesis in early stages: maternal and embryonic metabolism of teratogens (fluorouracil, 5-bromodeoxyuridine, methotrexate); development of model systems for teratogenesis (Echinoidea), Mus musculus (Rodentia) 167 b Cytology and cytochemistry of gametogenesis, fertilization, and cleavage. Arbacia punctulata, Echinarachnius parma, Lytechinus pictus (Echinoidea), Mus musculus (Ro- dentia) SKINNER, D. M. Ph.D., Prof. — Biol. Div., Oak Ridge Natl. Lab., P.O.Box Y, OAK RIDGE, Tenn. 37830, U.S.A. • a Metabolism of nucleic acids in the molt cycle. Gecarcinus lateralis (Decapoda, Crustacea) b Functions of satellite DNA's and macromolecular metabolism in regenerating tissues. Same species as a (with D. E. GRAHAM) SKOOG F. Ph.D., Prof. — Inst, of Plant Developm., and Dept. of Bot, Univ. of Wisconsin, Birge Hall, MADISON, Wis. 53706, U.S.A. • SKREB, N. M.D., D.Sc, Prof. — Inst, of Biol., Univ. of Zagreb, Salata 3, 41001 ZAGREB. Yugoslavia * a Early differentiation; transplantation, in vitro culture, autoradiography. Rattus norvegicus (Rodentia) (with B. LEVAK (5VAJGER) and A. SVAJGER) b Analysis of soluble proteins in organogenesis. Same species as a (with D. SERMAN) c Differentiation of early postimplantation stages under the kidney capsule, teratocarcino- genesis, nature of embryonal carcinoma cells; transplantation, electron microscopy. Mus musculus (Rodentia) (with D. SOLTER and I. DAMJANOV) SLAB?, O. D.Sc, Prof. — Inst, of Histol. and Embryol., Charles Univ., Karlovarska 48, PLZEft, Czechoslovakia • — temporarily: Cite Jean de la Fontaine, La Tour, ORAN, Algeria SLACK, Mrs. C. Dr.Sc, Ph.D. — Dept. of Physiol., Royal Free Hosp. Med. School, LON- DON W.l, England a Permeability of cell surface and junctional membranes of pregastrular stages in vivo and in vitro (electrophysiology) . Xenopus laevis (Anura), Ambystoma mexicanum (Urodela) tt , r „ _ SLADECEK, F. RNDr., DSc, Prof. — Dept. of Exper. Zool., Charles Univ., Vinicna 7, PR AH A 2, Czechoslovakia a Transplantation of nuclei in relation to the development of antigenic characteristics. (Amphibia) (with A. ROMANOVSKY) ™w«wiri b Transplantation of nuclei in relation to nucleic acids. (Amphibia) (with J. NEDVlDEK) c Number of cell generations in relation to cell determination. (Amphibia) SLAVKIN H. C. D.D.S. — Dept. of Biochem., Univ. of S.California, School of Dent., University Park, LOS ANGELES, Calif. 90007, U.S.A. a Role of intercellular membrane limited vesicles, partly containing methylated RNAs, in epithelial-mesenchymal interactions in tooth formation; characterization of "histocompati- bility antigens" of these vesicles and consequences of "infecting" primary homotypic cell cultures with these profiles. Oryctolagus cuniculus (Lagomorpha) b Search for macromolecular assembly mechanisms controlling specificity of enamel, dentine, and cementum (electron microscopy, biochemical methods, immunochemistry, isotope tracing). Oryctolagus cuniculus (Lagomorpha) SLIPKA, J. Dr.Med., Dr.rer.nat., C.Sc. — Inst, of Histol. and Embryol., Charles Univ., Karlovarska, PLZE55, Czechoslovakia a The development and teratology of the branchial region. (Amniota, incl. Homo sapiens) b The development of the bursa pharyngea from the standpoint of evolutionary morphology. Homo sapiens (Primates) SMART, I. H. M. M.B., Ch.B. — Dept. of Anat, Univ. of Dundee, DUNDEE DD1 4HN, Scotland, U.K. a Histogenesis of nerve cells and neuroglia. Mus musculus (Rodentia) b Studies on the geometry of the egg. Various spp. (Aves) SMIT, A. L. D.Sc, Prof. — Dept. of Zool., Univ. of Durban- Westville, Private Bag 4001, DURBAN, S.Africa a The ontogenesis of the head skeleton and musculature. Dendroaspis angusticeps, D. polylepis (Ophidia) SMITH, C. W. Ph.D., Prof. — Dept. of Bot., Univ. of Hawaii. Plant Sci. Bldg. Rm 101, 3190 Maile Way, HONOLULU, Hawaii 96822, U.S.A. a Factors controlling water uptake by dormant cysts, seeds, and spores. (Angiospermae) b Presentation of water insoluble materials to dormant systems prior to germination and their consequent effect on growth and development. (Angiospermae) SMITH, E. J. C. Ph.D. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France a Growth factors necessary for the survival and growth of malignant tumours in organ culture. Gallus gallus (Aves) (with Et. WOLFF and Em. WOLFF) b The effects of tumours on the growth of embryomas. Rattus rattus (Rodentia) (with J. SALAUN) SMITH. G. M.D., Prof. — Sect, of Genet., Stritch School of Med., 2160 S. 1th Ave., MAYWOOD, 111. 60153, U.S.A. a Developmental effect of cytochalasin B on lymphocytes. Homo sapiens (Primates) b Teratogenetic action of cytochalasin B. Gallus domesticus (Aves) 168 SMITH K. D Ph.D. — Dept. of Biol., Johns Hopkins Univ., Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Biochemical studies on gene action during development. Mus musculus (Rodentia) b Characterization of redundant DNA. Mus musculus (Rodentia) c Molecular analysis of chromatin diminution. Ascaris lumbricoides (Nematoda) SMITH, L. D. Ph.D. — Dept. of Biol. Sci., Purdue Univ., LAFAYETTE, Ind. 47907, USA * SMITH, P. D. Ph.D. — Dept. of Biol., Emory Univ., ATLANTA, Ga. 30322, U.S.A. a Problems of suppression and enzyme activity in lozenge mutants. Drosophila melanogaster (Diptera) b Possible role of intragenic position of alleles on dosage compensation in mutants affecting eye pigments. Same species as a SMITHBERG, M. Ph.D., Prof. — Dept. of Anat, Sch. of Med., Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. SMYTH, J. D. Sc.D., Prof. — Dept. of Zool. & Appl. Entomol., Imp. Coll. of Sci. & Technol., Prince Consort Rd., LONDON S.W. 7, England a In vitro differentiation. Echinococcus granulosus (Cestoda) SOBOTKA, P. M.D., CSc. — Inst, of Pathophysiol., Charles Univ., Lidicka 1, PLZEfi, Czechoslovakia SOFER, W. H. Ph.D. — Dept. of Biol., Johns Hopkins Univ., Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. a Changes in alcohol dehydrogenase during development. Drosophila melanogaster (Diptera) b Ribosomes, ribosomal RNA, and DNA. Drosophila spec. (Diptera) SOLBANI, Mrs. L. Dr.spec. — Lab. de Morphogenet. Anim., Centre Saint Charles, Univ. de Provence, Place Victor Hugo. 13 MARSEILLE 3e, France a Effects of x-ray irradiation upon adult morphogenesis. Nereis diversicolor (Polychaeta) SOLERE. M. Dr.en Med. — Lab. d'Histol.-Embryol.B, Fac. de Med., 45 rue des Sts.Peres, 75 PARIS Vie, France SOLOGUB. Miss A. A. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Metaplastic potencies of embryonic and larval eye for lens and retina regeneration. Leuciscus bergi, Anoptichthys jordani (Teleostei) (with G. V. LOPASHOV) b Stimulation of metaplasia of the pure pigmented epithelium of adults into retina by means of agents from larval (or embryonic) retina. Gallus domesticus (Aves), Mus musculus (Rodentia) (with G. V. LOPASHOV) c Autoradiography of the cell cycles at artificial metaplasia of the pigmented epithelium into retina. Rana tempovaria (Anura) SOLOMON, J. B. Ph.D., D.Sc. — Dept. of Bacterid., Univ. of Aberdeen, ABERDEEN, Scotland, U.K. a Onset of immunocompetence by phytohaemagglutinin-induced transformation of foetal lymphoid cells and haemolytic plaque-forming cells in vitro. Gallus domesticus (Aves), Mesocricetus auratus, Rattus norvegicus, Cavia porcellus (Rodentia) SOLTER. D. M.D., D.Sc. — Inst, of Biol., Univ. of Zagreb, Salata 3, 41001 ZAGREB, Yugoslavia a Preimplantation and early postimplantation stages; autoradiography, histochemistry, electron microscopy. Rattus norvegicus, Mus musculus (Rodentia) (with I. DAMJANOV and N. §KREB) b Differentiation of early postimplantation stages under the kidney capsule, teratocarcino- genesis. nature of embryonal carcinoma cells; transplantation, electron microscopy. Mus musculus (Rodentia) (with I. DAMJANOV and N. SKREB) c Protein patterns in embryo-derived teratocarcinomas and in host serum (polyacrylamide electrophoresis) . Same species as b (with D. 5ERMAN) d Urethan teratogenesis in early embryos (histochemistry, electron microscopy). Same species as b (with I. DAMJANOV) SOLTY53SKA (MARCINKOWSKA), Mrs. M. Dr. — Dept. of Invert. Zool., Warsaw Univ., Krakowskie Przedmiescie 26/28. WARSZAWA 64, Poland a Fine structure of germinal ridges. Mus musculus (Rodentia) SOLURSH, M. Ph.D. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA-City, Iowa 52240, U.S.A. a Effects of glucagon, insulin, and thyroxine on pure cultures of reticuloendothelial cells and parenchymal cells derived from larval and adult liver. Xenopus laevis (Anura) b The role of cell replacement in metamorphosis of the larval pancreas. Same species as a c Differentiation in cultured sternal chondrocytes: 1. effects of growth hormone; 2. requirements for continuous RNA synthesis; 3. maturation of two cell populations; 4. coregulation of collagen and chondroitin sulfate synthesis. Gallus domesticus (Aves) SOMA, T. B.Agr.Sc. J— Natl. Inst, of Anim. Industry, CHIBA-shi, 280 Japan a Transfer of fertilized eggs by non-surgical techniques. Bos taurus (Artiodactyla) SOMES, R. G. Ph.D., Prof. — Nutrit. Sci. Dept., Storrs Agric. Exper. Station, Univ. of Connecticut, STORRS, Conn. 06268, U.S.A. a Developmental genetics. Gallus domesticus (Aves) 169 SONDHI, K. C. f Ph-D., Prof. — Rutgers State Univ., NEWARK. N.J. 07102, U.S.A. SONI, S. L. Ph.D. — Dept. of Botany, Univ. of Michigan, ANN ARBOR, Mich. 48104, U.S.A. a Electron microprobe analysis of silica accumulation in immature and mature stages of leaf and internode. Oryza spec, Avena spec. (Gramineae), Cyperus (Cyperaceae) b Hormonal regulation of growth and invertase activity in stems and coleoptile segments. Avena spec, Oryza spec. (Gramineae) SOPINSKI, M. M.B. — Dept. of Histol. and Embryol., Acad, of Med., ul. Narutowicza 60, EODz, Poland a The distribution and activity of some hydrolytic enzymes in lysosomes and of oxido- reducing enzymes in mitochondria, in various tissues and organs during metamorphosis and embryogenesis. Xenopus laevis (Anuca), Gallus domesticus (Aves), Rattus norvegicus, Cavia porcellus (Rodentia) SORIANO, L. I. M.D. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a RNA synthesis in embryonic skin. Gallus gallus (Aves), Mus musculus (Rodentia) b mRNA synthesis at the polysomal level in embryonic tissues; base composition of mRNA and rRNA. Gallus domesticus (Aves) (with J. DESVEAUX) SPAZIANI, E. Ph.D., Prof. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA- City, Iowa 52240, U.S.A. a Mechanism of ovarian and testicular hormone action on growth and development of reproductive tissues: uterus, seminal vesicles, prostate. Rattus norvegicus (Rodentia) b Hormonal control of melanocyte differentiation and pigment synthesis. Rattus norvegicus (Rodentia) c Biosynthesis of growth and differentiating hormone (ecdysone) by the Y-organ; variations accordinq to molt cycle. Hemigrapsus nudus (Decapoda, Crustacea) SPECTOR, C. Ph.D. — Dept. of Biol., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, U.S.A. a The possible control of development by differential biosynthesis of specific gibberelhns. Gibberella fujikuroi (Ascomycetes) SPENCER, R. P. M.D., Ph.D., Prof. — Dept. of Radiol., Yale Univ., 333 Cedar St., NEW HAVEN, Conn. 06504, U.S.A. a Development of heart weight and blood volume. (Delphinoidea, Cetacea), (Mammalia) b Development of kidney. (Mammalia) c Development of liver and of spleen. (Mammalia and others) d Development of liver, spleen, and thyroid as a function of age, height, weight, and body surface area (radio-isotope study). Homo sapiens (Primates) SPERRY, R. W. Ph.D. — Div. of Biol., Calif. Inst, of Technol., PASADENA, Calif. 91109, U.S.A. • SPIEGEL, Mrs. E. SCLUFER Ph.D. — Dept. of Biol. Sci., Dartmouth Coll., HANOVER, N.H. 03755, U.S.A. a Protein changes in development. Lytechinus pictus, Strong ylocentrotus purpuratus (Echinoidea) , Rana pipiens, R. catesbeiana (Anura) (with M. SPIEGEL) b Role of enzyme induction in development. Rana pipiens, R. catesbeiana (Anura) (with M. SPIEGEL) c Biochemistry of metamorphosis. Same species as b (with M. SPIEGEL) d Ultrastructure of metamorphosis. Same species as b (with M. SPIEGEL) SPIEGEL, M. Ph.D., Prof. — Dept. of Biol. Sci., Dartmouth Coll., HANOVER, N.H. 03755, U.S.A. • a Protein changes in development. Arbacia punctulata, Lytechinus pictus. Strong ylocentrotus purpuratus (Echinoidea), Rana pipiens, R. catesbeiana (Anura) (with E. S. SPIEGEL) b Role of enzyme induction in development. Rana pipiens, R. catesbeiana (Anura) (with E. S. SPIEGEL) c Ultrastructure of metamorphosis. Same species as b (with E. S. SPIEGEL) d Biochemistry of metamorphosis. Same species as b (with E. S. SPIEGEL) SPINELLI, Miss M. M. G. Dent. — Lab. de Zool., Inst, de Rech. Biol.. Univ. Scient. et Med. de Grenoble, Cedex 53, 38 GRENOBLE, France a Ultrastructure and differentiation of dental buds. Rana temporaria, Bufo bufo (Anura) SPIRIN, A. A. Prof. — Inst, of Biochem., Acad, of Sci. of the U.S.S.R., MOSCOW, U.S.S.R. • SPIRITO, A. Dott, Prof. — 1st. di Biol. Gen., Fac di Med., Univ. di Roma, Policlinico Umberto I, 00100 ROMA. Italy • SPIROFF, B. E. N. Ph.D. — Dept. of Biol., Loyola Univ., 6525 N. Sheridan Rd., CHICAGO, 111. 60626, U.S.A. a Effects of thalidomide on development. (Aves) b Function and structure of the epiphysis. (Aves) c Lymphocytes and epiphysis. (Aves) SPORNITZ, U. M. — Abt. Anat., Med. Fak., Rhein.-Westf. Techn. Hochschule, Alter Maastrichter Weg 1,51 AACHEN, W.Germany a Vitellogenesis and early degeneration of eggs. (Amphibia) 170 SPRATT, N. T., Jr. Ph.D., Prof. — Dept. of Zool., Coll. of Biol. Sci., Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. • a Nutrient requirements essential to morphogenesis and growth in pre-streak and streak blastoderms. Gallus domesticus (Aves) b Survey of dehydrogenase enzymes in early embryos: 1. localization of enzyme activity; 2. structural integrity and enzyme activity. Same species as a c Cytology of the developmental center (organizer) . Same species as a d Mechanism of morphogenetic movements (time-lapse cinematography). Same species as a e Dynamic population pattern formation by free-swimming organisms. Tetrahymena spec. (Ciliata), Euglena spec. (Euglenophyceae) , Avbacia punctulata (Echinoidea) f Integrative mechanisms in early development. (Aves) g Role of the microenvironment in cell differentiation. (Aves) SPREY, Th. E. M.Sc. — Zool. Lab., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Netherlands a Differentiation and development of imaginal discs: 1. histochemistry; 2. biochemistry, especially proteins (electrophoresis) ; 3. cell death; 4. ultrastructure of leg disc; 5. i n vitro culture of imaginal disc cells (specific adhesion) . Calliphora erythrocephala (Diptera) SRB. V. — Dept. of Biol., Charles Univ., Simkova 870, HRADEC KRALOVg, Czechoslovakia SREBRO, Z. M.D., Ph.D. — Dept. of Biol, and Embryol., Acad, of Med., ul. Kopernika 7, KRAK6W, Poland a X-ray induced congenital malformations and their protection by serotonin. Rattus spec. (Rodentia) STAAL, G. B. Dr., Ir. — Zoecon Corp., 975 California Ave., PALO ALTO, Calif. 94304, U.S.A. a Influence of insect hormones and synthetic analogs on metamorphosis, reproduction, and embryogenesis. (Orthoptera, Homoptera, Coleoptera, Lepidopteca, Diptera) STAGNI, Miss A. Dr., Prof. — Inst, of Zool., Fac. of Sci., Univ. of Bologna, Via S.Giacomo 9. 40126 BOLOGNA, Italy a Sex determination and sex differentiation. Chlorohydra viridissima (Hydroidea) b Cytochemistry and electron microscopy of oogenesis and spermatogenesis. Same species as a c Cytometry, cytochemistry, and biochemistry of nucleolus during oogenesis. Spirorbis pagenstecheri (Serpulidae, Polychaeta) d Inhibition by antibiotics of steroid hormone-induced sex-reversal in tadpoles. Rana dalma- tina (Anuva) STAMPA (DI CASTRO), Mrs. M. Dr.Biol.Sci. — 1st. di Zool. dell'Univ., Viale Regina Elena 324 (al Policlinico), 00100 ROMA, Italy STANGE, Miss L. Dr.rer.nat, Prof. — Inst, fur Bot, Techn. Univ., Herrenhauser Str. 2, 3 HANNOVER, W.Germany a Regeneration; activation of nucleic acid metabolism during cell dedifferentiation. Rhiella helicophylla (Hepaticae) , prothallia (Filicinae) b Effects of growth regulators on meristems. Same species as a STANISSTREET, M. B.Sc. — Dept. of Zool., Univ. of Liverpool. LIVERPOOL, England a Protein changes during early development (immunology, electrophoresis). Xenopus laevis (Anura) b The sensitivity of embryos to maternal antibodies and of lymphocytes against the paternal strain in vivo and in vitro. (Mammalia) (with E. M. DEUCHAR, Bristol) STAPLES, R. E. Ph.D. — Natl. Inst, for Environm. Health Sci., P.O.Box 12233, RESEARCH TRIANGLE PARK, N.C. 27709, U.S.A. a Zygote development (physiological, biochemical). Oryctolagus cuniculus (Lagomorpha), Rattus norvegicus, Mus musculus (Rodentia) b Teratology. Oryctolagus cuniculus (Lagomorpha), Rattus norvegicus, Mus musculus, Mesocricetus auratus (Rodentia) c Effects of combinations of factors (e.g. drug and stress) on development, from gamete to adult (morphology, biochemistry, behaviour) . Mammalia STARCK, D. Dr.med., Prof. — Dr. Senckenberg Anat. Inst., Med. Fak. der Univ., Ludwig- Rehn Str. 14, FRANKFURT/Main-Sud. W.Germany • STARK, E. — Inst, of Exper. Med. of the Hung. Acad, of Sci., Morphol. Dept., Szigony u 43, BUDAPEST VIII, Hungary a Fine structure and hormonal activity of intact and cultured embryonic adrenal cells of different species STARRE, H. van der Drs.biol. — Dept. of Med. Anat. and Embryol., State Univ. of Utrecht, Tanskerkhof 3A, UTRECHT, Netherlands a Eye lens induction in vitro. Gallus domesticus (Aves) b Histochemistry of eye lens inductors. Same species as a STARRE (VAN DER MOLEN), Mrs. L. G. van der M.Sc. — Zool. Lab., Univ. of Leiden. Kaiserstr. 63, LEIDEN, Netherlands a Ultrastructure and histochemistry of embryogenesis. Calliphora erythrocephala (Diptera) Sf ASTN?, F. M.D. — Lab. of Embryophysiol., Inst, of Physiol, Charles Univ., Albertov 5, PR AH A 2, Czechoslovakia 171 a Development of extracellular and intracellular environment of foetal brain tissue (physical and chemical). Callus domesticus (Aves), Cavia porcellus (Rodentia) b Development of membrane ATP-ase system in cellular and subcellular elements of fetal brain tissue. Relations to the endocrine factors. Gallus domesticus (Aves) STAY, Miss B. Ph.D., Prof. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA- City, Iowa 52240, U.S.A. a Secretion of the brood sac and structure and physiology of the pleuropodia in relation to the nutrition of the viviparous embryo, compared to a non-viviparous species. Diploptera punctata, Nauphoeta cinerea (Blattariae) STEARNER, Miss S. P. Ph.D. — Div. of Biol, and Med. Research, Argonne Natl. Lab., 9700 South Cass Ave., ARGONNE, 111. 60439, U.S.A. a Radiation effects on developing circulatory system. (Aves) STEDING, G. Priv.Doz., Dr.med. — Anat. Inst, der Univ., Kreuzbergring 36, 34 GOT- TINGEN, W.Germany a Experimente zur Entwicklung des Riickenmarkes. Gallus gallus (Aves) b Selbstdifferenzierung der Somiten. Gallus gallus (Aves) c Friihentwicklung. Gallus gallus (Aves) d Strukturentwicklung des Uterus. Homo sapiens (Primates) e Experimente zur Entwicklung der Extremitaten. (Aves) f Experimen telle Analyse der Epitheldifferenzierung. Gallus gallus (Aves) g Autoradiographische Analyse von Entwicklungsbewegungen embryonaler Organanlagen. Gallus gallus (Aves) STEFANELLI, A. Dr., Prof.ord. — Inst, di Anat. Comp. "Battista Grassi", Univ. di Roma, Via A.Borelli 50, 00161 ROMA, Italy • a Nervous microsystems in vitro. Gallus domesticus (Aves) b Reaggregation of neuroblasts of different nature; morphology of new synapses STEFFEK, A. J. D.D.S., Ph.D. — Dept. of Anat., Univ. of Chicago, 1025 East 57th St., CHICAGO, 111. 60637, U.S.A. — American Dental Assoc, 211 E. Chicago Ave., CHICAGO, 111. 60611, U.S.A. a Normal oral-facial development emphasizing formation of the primary and secondary palate. Mustela putorius furo, Macaca mulatta and other Mammalia b Mechanisms involved and comparative pathogenesis of the lesions in experimentally -induced cleft lip and cleft palate. Same species as a c Correlation of drug metabolism, distribution and localization with the congenital malforma- tions in the fetus. Same species as a STEFFENSEN, D. M. Ph.D., Prof. — Dept. of Bot., Univ. of Illinois, URBANA, 111. 61801, U.S.A. a Origin and assembly of ribosomes studied by RNA hybridization and gel electrophoresis in different mutants and chromosome aberrations. Drosophila melanogaster (Diptera) STEGEMAN, Mrs. J. H. J. — Histol. Lab.. Jan Swammerdam Inst., Univ. of Amsterdam, le Const. Huygensstr. 20, AMSTERDAM-W., Netherlands a Foetal growth in relation to size and development of placenta. Ovis aries (Artiodactyla) b Vascularization of the placenta in relation to its size and age. Same species as a STEGNER, H.-E. Dr.med. — Univ.-Frauenklin., Martinistr. 52, 2 HAMBURG 20, W. Germany STEIN, Miss K. F. Ph.D., Prof. (Emer.) — Dept. of Biol. Sci., Clapp Lab., Mount Holyoke Coll.. SOUTH HADLEY, Mass. 01075, U.S.A. a The culture in vitro of mutant embryos, e.g. Lp/Lp; tracer studies. (Rodentia) b Development and genetics of a circling mutation. Mus musculus (Rodentia) c Genetics and development of a mutation — similar to or identical with lg/lg — causing blindness with eyes open at birth and the effect of cortical steroids on its development. Same species as b STEINBERG, M. S. Ph.D., Prof. — Dept. of Biol., Princeton Univ., PRINCETON, N.J. 08540, U.S.A. • a Direct measurements of strengths of intercellular adhesions among embryonic cells. Gallus domesticus (Aves) b Mechanisms in cell aggregation and tissue recontruction. (Porifera), Rana pipiens (Anura), Gallus domesticus (Aves) c Physics and chemistry of cell surfaces in relation to cell adhesion. (Porifera), Gallus domesticus (Aves) d Mechanisms governing contact inhibition of mitosis and of cell movement (various tissue culture cell strains) e Mechanisms of nerve - end organ integration (studies of reflex behavior after regeneration of sensory nerves into a topographically rearranged integumental field). Rana pipiens (Anura) STEINITZ. H. f Ph.D., Prof. — Hebrew Univ. of Jerusalem. JERUSALEM, Israel STENGER (HAFFEN), Mrs. K. E. Dr.es Sci. — Lab. d'Embryol. Exp., Coll. de France, 1 1 Place M.Berthelot. 75 PARIS Ve, France • STfiPHAN, F. Dr.es Sci., Prof. — Lab. de Zool., U.E.R. Phys. Chim. Biol., Univ. Nancy I, Case Officielle 72, 54 NANCY 01, France 172 a Les malformations cardio-vasculaires: analyse causale de Taction teratogene de diverses substances, par ex. bleu trypan. Gallus gallus (Aves) b Teratologic: origine, evolution et transmission des lesions, excroissances et duplications. Dugesia tigrina (Turbellaria) (avec J. SCHILT) c Developpement du systeme tracheen chez la larve (etude experimentale). Tipula \lavolineata (Dipteca) (avec J. C. PIHAN) STEPHAN (DUBOIS), Mrs. F. Dr.es Sci. — Lab. de Zool., U.E.R. Phys. Chim. Biol., Univ. Nancy I, Case Off. 72, 54 NANCY 01, France • a Migration et differenciation des cellules de regeneration. (Planariidae; Oligochaeta micro- dtila; Polychaeta errantia) b Anomalies de la regeneration. Same species as a STEPHENSON, N. G. Ph.D. — School of Biol. Sci., Zool. Building, Univ. of Sydney, SYDNEY, N.S.W. 2006, Australia (no embryological work in progress) STERBA, O. — Dept. of Morphol., Inst, of Vertebr. Zool., Czechoslov. Acad, of Sci., Kvetna 8, BRNO, Czechoslovakia a Prenatal development of locomotory apparatus. (Insectivora; Chiroptera; Rodentia) STERN, C. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, U.S.A. a Developmental genetics of pattern formation. Drosophila melanogaster (Diptera) b Pleiotropic effect of genes. Same species as a STERN, H. Ph.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. • a Regulation of DNA synthesis during meiotic development. Trillium erectum, Lilium longiflorum, Tulipa gesneriana, Vicia [aba, Bellevalia romana (Angiospermae) b Developmental genetics. Marchantia polymorpha (Hepaticae) STERN, I. B. D.D.S., Prof. — Dept. of Oral Biol., School of Dent., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Development of epidermis (autoradiography, electron microscopy, biochemistry). Rattus spec. (Rodentia) , Homo sapiens (Primates) STERN, K. M.D., Prof. — Dept. of Life Sci., Bar-Ilan Univ., RAMAT-GAN, Israel a Relationship of reticuloendothelial function to growth processes, as exemplified by liver regeneration after partial hepatectomy. Rattus spec, Mus musculus (Rodentia) b Effect on organ growth of administration of isogeneic subcellular tissue fractions to weanlings of inbred strains. Mus musculus (Rodentia) STERN, S. Ph.D. — Dept. of Popul. Dynamics, Sch. of Hyg. and Publ. Health, Johns Hopkins Univ., 615 N.Wolfe St., BALTIMORE, Md. 21205, U.S.A. a Carbohydrate metabolism in pre-implantation embryos as related to glycogen metabolism; culture of embryos. Mus musculus (Rodentia), Homo sapiens (Primates) b Composition of ovarian and tubal secretions. Same species as a c Hormonal control of ovulation. Mus musculus (Rodentia) d Ultrastructure of pre-implantation embryos. Mus musculus (Rodentia) e Oocyte maturation. Same species as a STETLER, D. A. Ph.D. — Dept. of Bot., Univ. of Minnesota, MINNEAPOLIS, Minn. 55455, U.S.A. STEVEN, D. H. M.A.,Vet.M.B. — Anat. School, Sub-Dept. of Vet. Anat, Univ. of Cambridge, Tennis Court Rd., CAMBRIDGE CB2 1QS, England a Organization of placental blood vessels in relation to physiological exchange. Ovis aries (Artiodactyla) , Equus caballus (Perissodactyla) b Electron microscopy of placenta in relation to physiological exchange. Ovis aries, Bos taurus (Artiodactyla), Equus caballus (Perissodactyla) STEVENS, L. C. Ph.D. — The Jackson Lab., BAR HARBOR, Me. 04609, U.S.A. • a Histogenesis of testicular teratoma (strain 129). Mus musculus (Rodentia) b Developmental genetics. Mus musculus (Rodentia) STEVENSON, J. ROSS Ph.D., Prof. — Dept. of Biol. Sci., Kent State Univ., KENT, Ohio 44242, U.S.A. a Study of control of epidermal chitin biosynthesis for the developing cuticle by chemical assays and radiotracers. Orconectes sanborni, O. obscurus (Decapoda, Crustacea) STEWART, J. A. Ph.D. — Biochem. Dept., Univ. of New Hampshire, DURHAM, N.H. 03824, U.S.A. a Turnover of proteins, and regulation of monoamine oxidase activity during central nervous system development. Mus musculus (Rodentia) STOCK, A. Ph.D., Prof. — Dept. of Zool., Fac. of Sci., Univ. of New England, ARMIDALE, N.S.W. 2351, Australia STOCKDALE, F. E. M.D., Ph.D. — Dept. of Med., School of Med., Stanford Univ., STANFORD, Calif. 94305, U.S.A. • a Mechanisms of skeletal muscle differentiation, with special reference to DNA synthesis and cell division. Gallus domesticus (Aves) b Mechanisms of hormone-dependent differentiation in mammary gland tissue in vitro, with special reference to DNA synthesis and cell division. Mus musculus (Rodentia) 173 STOCUM, D. L. Ph.D. — Dept. of Zool., Univ. of Illinois, URBANA, 111. 61801, U.S.A. a Morphogenesis during regeneration. Ambystoma maculatum, Tritucus viridescens (Urodela) b Control of ribonucleic acid synthesis by tissue interactions during regeneration. Same species as a c Cell recognition and adhesion during embryology. Gallus domesticus (Aves) STOLL, R. Dr.en Med., Dr.es Sci., Prof. — Lab. de Biol, et d'Histol., Univ. de Bordeaux II, Place de la Victoire, 33 BORDEAUX, France a Differentiation sexuelle. ( Aves) b Physiologie des glandes endocrines embryonnaires. (Aves) c Teratologic (Aves) STONE, L. S. Ph.D., Prof. — Anat. Dept., Yale Univ., 333 Cedar St., NEW HAVEN, Conn. 06520, U.S.A. • STOUT, V. M. Ph.D. — Dept. of Zool., Univ. of Canterbury, Private Bag, CHRIST- CHURCH, New Zealand a Descriptive embryology. Lepiducus apus (Notostraca, Crustacea), Daphnia magna (Clado- cera, Crustacea) STRAFFORD (MILLER), Mrs. B. F. Ph.D. — School of Anat., Univ. of Melbourne, PARKVILLE 3052, Vict., Australia a Developmental anatomy and pathology of the placenta. Homo sapiens (Primates) b Postnatal development of the lung. Dasyuroides bytnei (Marsupialia) STRAUSS, F. M.D., Prof. — Dept. of Anat., Div. of Appl. and Topogr. Anat., Univ. of Bern, 26 Buehlstr., CH-3012, BERN, Switzerland • a Comparative implantation and placentation. (Mammalia) b Comparative anatomy of the female reproductive system. (Mammalia) c Skeletal chondrification in connection to teratogenesis. Homo sapiens (Primates) d Early differentiation of skeletal muscles. Homo sapiens (Primates) STROEVA, Miss O. G. Dr.biol.sci. — Lab. of Developm. Cytogenet., Inst, of Developm. Biol., Acad of Sci. of the U.S.S.R., 26 Vavilov St., MOSCOW 117133, U.S.S.R. a Development and teratology of the iris and ciliary body. Rattus norvegicus (Rodentia) b Differentiation and growth of the pigment epithelium of the retina, especially DNA synthesis, cell division, and mechanisms of nuclear polyploidization. Same species as a (with T. L. MARSHAK) c DNA synthesis and cell cycles during neural retina regeneration. Triturus vulgaris, T. cristatus (Urodela) (with V. I. MITASHOV and V. F. SINITSINA) STROM, R. Fil.lic. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Larval development. (Bryozoa) STRGMBERG, J.-O. Fil.lic. — Dept. of Zool., Univ. of Lund, Helgonavagen 3, S-223 62 LUND, Sweden STRUDEL, G. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Developpement et teratologic de la colonne vertebrale. ( Aves) b Biochimie et ultrastructure du cartilage vertebral. (Aves) c Role inducteur de la chorde et du tube nerveux; chondrogenese. (Aves) STRUNNIKOV, V. A. — Lab. of Developm. Cytogenet., Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Cytogenetics of diploid and polyploid strains. Bombyx mori, B. mandarina (Lepidoptera) (with B. L. ASTAUROV and V. N. VEREISKAYA) STURDEE, A. P. B.Sc. — Anat. Dept., Med. School, Leeds Univ., LEEDS LS2 9NL, England a Epithelial-mesenchymal interactions in limb development (histology, histochemistry, electron microscopy, transplantation). Xenopus laevis, Rana temporaria (Anura), Triturus cristatus, T. vulgaris (Urodela) STURROCK, R. R. M.B., Ch.B. — Dept. of Anat., Univ. of Dundee, DUNDEE DD1 4HN, Scotland, U.K. a Measurements of the distance between neuroglia nuclei in fibre tracts of the postnatal brain and its relation to the number of myelinated fibres present. Mus musculus (Rodentia) STYCZYfiSKA-JUREWICZ, Mrs. E. Ph.D. — Dept. of Bioenergetics and Bioproductivity, Nencki Inst, of Exper. Biol., ul. Pasteura 3, WARSZAWA 22, Poland a Effect of salinity on fecundity, permeability of egg capsule, and embryonic development. Physa acuta (Gastropoda) SUBTELNY, S. Ph.D., Prof. — Dept. of Biol., Rice Univ., HOUSTON, Tex 77001, U.S.A. • a Germ cell migration. Rana pipiens (Anura) b Expression of genes controlling enzymes in nuclear transplant hybrid embryos. Rana pipiens (Anura) SUBURO, Miss A. M. M.D. — Inst, de Anat. Gen. y Embriol., Fac. de Medicina, Paraguay 2155, BUENOS AIRES, Argentina a Electrophysiology of nervous tissue differentiation in vitro and in vivo. Gallus domesticus (Aves) 174 SUCH (RAZIMBAUD), Mrs. J. Dr.Biol.anim. — Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facultes, 33 TALENCE, France a Recherches descriptives et experimentales sur le developpement embryonnaire de l'oeil compose. Carausius spec. (Phasmida) SUCHESTON, Mrs. M. E. Ph.D. — Dept. of Anat, Ohio State Univ., 333 W. 10th Ave., COLUMBUS, Ohio 43210, U.S.A. a Morphology and histology of the male and female adrenal gland from implantation to sexual maturity; histochemistry and electron microscopy of the cortical transient zone. Meriones unguiculatus (Rodentia) SUDARWATI, Miss S. Dr. — Bandung Inst, of Technol., Dept. of Chem. and Biol., Sect. Biol., Djalan Ganesa 10, BANDUNG, Indonesia a The passage and distribution of maternally administered Au-198 in the foetus. Mus musculus (Rodentia) SUGA, T. Dr. — Natl. Inst, of Anim. Industry, CHIBA-shi, 280 Japan a Developmental physiology of the fetus. Bos taucus, Capca hircus (Artiodactyla) SUGIE, T. Ph.D. — Natl. Inst, of Anim. Industry, CHIBA-shi, 280 Japan a Transfer of fertilized eggs by non-surgical techniques. Bon taurus, Capra hircus (Artio- dactyla) SUGIMOTO, K. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. a Biochemistry of early development. Rana pipiens, Xenopus laevis (Anura), Bombyx moci and other spp. (Lepidoptera) (with D. D. BROWN, A. E. CLASON, P. M. LIZARDI and Y. SUZUKI) SUGINO, H. D.Sc, Prof. — Osaka Christian Coll., Maruyama-ddri, Abeno-ku, OSAKA, 545 Japan • a Differentiation of neoblasts. Dugesia japonica (Turbellaria) b Effect of x-irradiation on blastema. Same species as a SUGIYAMA, M. D.Sc, Prof. — Marine Biol. Station, Nagoya Univ., Sugashima, TOBA-shi, Mie-ken, 517 Japan • a Physiological studies on fertilization and artificial parthenogenesis. Hemicentrotus pulchecrimus, Pseudocentrotus depressus (Echinoidea) (with M. ISHIKAWA) SULLIVAN, D. T. Ph.D. — Dept. of Biol., Syracuse Univ., 130 College Place, SYRACUSE, N.Y. 13210, U.S.A. a Biochemical and genetic control of enzyme appearance during differentiation. Dcosophila melanogaster (Diptera) b Biochemistry of pigment synthesis. Same species as a SULLIVAN, G. E. Ph.D. — Dept. of Histol. and Embryol., Univ. of Sydney, SYDNEY, N.S.W. 2006, Australia a Effects of paralysis and amniotic pressures on the skeletomuscular system of the embryo. Gallus spec. (Av es) b Teratogenic effects of antimalarial drugs. Same species as a SUSSEX, I. M. Ph.D., Prof. — Dept. of Biol., Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. a Experimental embryogenesis including uptake and internal transport of nutrients, RNA metabolism during preparation for dormancy and in germination. Phaseolus vulgaris (Papilionaceae) SUSSMAN, A. S. Ph.D., Prof. — Dept. of Bot, Univ. of Michigan. ANN ARBOR, Mich. 48104, U.S.A. a Developmental physiology. (Fungi) b Physiology of spore germination. (Fungi) SUSSMAN, M. Prof. — Dept. of Biol., Brandeis Univ., WALTHAM, Mass. 02154, U.S.A. • a Genetic and developmental studies. Dictyostelium spec. (Acrasiales) (with Mrs. R. B. R. SUSSMAN) SUSSMAN, Mrs. R. B. ROTMAN Ph.D. — Dept. of Biol., Brandeis Univ., WALTHAM, Mass. 02154, U.S.A. a Genetic and developmental studies. Dictyostelium spec. (Acrasiales) (with M. SUSSMAN) SUTTER, B. C. J. Dr.es Sci. — Lab. de Physiol. Anim., Fac. des Sci., B.P. 347, 51 REIMS, France a Endocrine function of the foetal pancreas; insulin blood levels in the foetus and in the mother. Rattus norvegicus (Rodentia) (with R. L. JACQUOT, J. M. FELIX and Mrs. M. T. SUTTER) SUTTER (DUB), Mrs. M. T. D.E.S. — Lab. de Physiol. Anim., Fac. des Sci., B.P. 347, 51 REIMS, France a Endocrine function of the foetal pancreas; insulin blood levels in the foetus and in the mother. Rattus norvegicus (Rodentia) (with R. L. JACQUOT, J. M. FELIX and B. C. J. SUTTER) SUZUKI, Y. Ph.D. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. a Biochemistry of development. Bombyx mori (Lepidoptera) (with D. D. BROWN, A. E. CLASON, P. M. LIZARDI and K. SUGIMOTO) 175 b Silk gland development and differentiation, esp. silk fibroin synthesis, fibroin message synthesis, and isolation of the fibroin gene. Bombyx mori ( Lepidoptera) (with D. D. BROWN and L. P. GAGE) SVAJGER, A. M.D.. D.Sc. — Inst, of Histol. and Embryol., Univ. of Zagreb, P.O.Box 166, Salata3, 41001 ZAGREB, Yugoslavia a Early differentiation; transplantation, in vitro culture. Rattus norvegicus (Rodentia) (with Mrs. B. LEVAK and N. 5KREB, Inst, of Biol.) b Developmental capacities of tissues of the chorioallantoic membrane. Gallus domesttcus (Aves) with Mrs. B. LEVAK and N. SKREB) c Chondogenesis in the external ear. Rattus norvegicus (Rodentia) d Temporal sequence of appearance of collagen and elastin fibrils and basement membranes, their pattern organization and relation to morphogenetic events during ontogenesis. Rattus norvegicus (Rodentia) (with Mrs. L. KOSTOVIC) „~„ ,,, SWANEPOEL, J. H. D.Sc. — Dept. of Zool., Rand Afrikaans Univ., P.O.Box 524, JOHANNESBURG, S.Africa a Embryonic development. Barbus capensis (Teleostei) SWANSON (EARTLY), Mrs. H. H. Ph.D. — Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a Effects of gonadal hormones given shortly before or after birth and sex hormones implanted in brain of new-born animals on sex-typical morphology, function, and behaviour. Mesocricetus auratus, Rattus norvegicus (Rodentia) SWANSON, R. F. Ph.D. — Dept. of Biol., Gilmer Hall, Univ. of Virginia, CHARLOTlEb- VILLE, Va. 22903, U.S.A. a Control of mitochondrial protein synthesis during early embryonic development. Xenopus SWARUP, K^D.Phil. — Dept. of Zool., Univ. of Gorakhpur, GORAKHPUR (U.P.), India SWIFT, H. H. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, 1101 E. 57th St., CHICAGO, 111. 60637, U.S.A. SZALAY, K. — Inst, of Exper. Med. of the Hung. Acad, of Sci., Morphol. Dept., Szigony u. 43, BUDAPEST VIII, Hungary . a Fine structure and hormonal activity of intact and cultured embryonic adrenal cells of different species SZAMBORSKI, J. J. M.D. — Lab. of Pathol. Anat., Dept. of Obstet. and Gynecol. II, Med. School, ul.Karowa 2, WARSZAWA 40, Poland a Developmental histology of some organs of fetus and newborn. Homo sapiens (Primates) b Histological and histochemical features of the stroma of the uterine mucosa (normal changes due to age; malignancy) . Same species as a SZEKELY C. M.D., Prof. — Dept. of Neuropathol, Res. Stat, of Tirgu-Mures, of the Acad. of the S.S.R., St. Gh.Marinescu 38, TiRGU-MURE§, Rumania SZfiKELY, G. M.D. — Anat. Dept., Med. Univ., Dischka u 5, P£CS, Hungary • SZYBEK (LEWICKA), Mrs. Ch. — Tornblad-Inst. for Comp. Embryol., Biskopsgatan 7, S-223 62 LUND, Sweden a Post-natal development of ovary; interactions between follicle and oocyte; in vitro culture and maturation of oocytes. Mus musculus (Rodentia) b Fertilization in vitro; sperm capacitation. Mus musculus (Rodentia) TABAN, Ch. H. Dr.es Sci., Dr.med., Prof. — Inst. d'Anat., Ecole de Med., Rue de l'Ecole de Medecine 20, 1205 GENEVE, Switzerland a Action of antisera on regeneration. Triturus spec. (Uvodela) b Tolerance of xenograft compared to homograft and related problems. Ambystoma mexicanum and other spp. (Urodela) c Modification of wound healing in embryos and adults. Mus musculus (Rodentia), Oryctola- gus cuniculus (Lagomovpha) TADDEI. C. Dr. — 1st. di Istol. ed Embriol.. Via Mezzocannone 8, 80134 NAPOLI, Italy TAGUCHI, S. Ph.D. — Div. of Biol., Natl. Inst, of Radiol. Sci., 9-1, 4-chome, Anagawa, CHIBA, 280 Japan a Biochemical studies on effect of radiation on the embryo. Ocyzias latipes (Teleostei), Bufo vulgaris (Anura) «.„««■■ r-A*> ■, TAHARA, Y. D.Sc. — Dept. of Biol., Osaka Kyoiku Univ., Tennoji-ku, OSAKA, 543 Japan a Dynamic aspects of interaction between embryo and Myxovirus. (Aves) d Development of primary and secondary sexual characters. (Echinodermata) TAHMISIAN, T. N. Ph.D. — Div. of Biol, and Med Research, Argonne Natl. Lab., (D 202), 9700 South Cass Ave., ARGONNE, 111. 60439, U.S.A. a Effects of ionizing irradiations on tissue differentiation and metabolism in embryos. Melanoplus diff. differential (Orthoptera) b Induction and differentiation of striated muscle (electron microscopy). Helix aspersa (Pulmonata, Gastropoda), Melanoplus diff. differential is (Orthoptera), Brachydanio terio, B. albolineatus (Cyprinidae, Teleostei) c Effect of chronic x-irradiation on the ultrastructure of bone marrow. Canis familiaris (Carnivora) 176 d Effect of antibiotics on germ cell differentiation, especially organelle ultrastructure. Melanoplus diff. differentialis (Orthoptera) TAKAGI N. D.Sc. — Chromosome Research Unit, Fac. of Sci., Hokkaido Univ., North 10, West 8, SAPPORO, 060 Japan a Chromosome studies in pre- and post- implantation embryos. Mus musculus, Cricetus auratus (Rodentia) TAKAHASHI, H. Dr. — Lab. of Freshwater Fish Cult., Hokkaido Univ., 3-1-1 Minato-cho, HAKODATE, Hokkaido, Japan • TAKAHASHI, K. M.Sc. — Lab. of Cell Sci., Inst, of Biophys. and Molece Biol., Fac. of Sci., Univ. of Kyoto, Sakyo-ku, KYOTO, Japan a Analysis of the factors affecting cell aggregation and cell contact. Gallus gallus (Aves) (with T. S. OKADA and H. FUJISAWA) TAKANO, K. M.D., Prof. — Dept. of Anat, Kyoto Univ. Yoshida, Konoe-cho, Sakyo-ku, KYOTO, 606 Japan a Strain differences in susceptibility to teratogenesis. Mas musculus (Rodentia) b ABO incompatibility as a cause of spontaneous abortion. Homo sapiens (Primates) TAKASAKI, Mrs. H. — Dept. of Biol., Osaka Kyoiku Univ., Tennoji-ku, OSAKA, 543 Japan a Causality in epigenetic formation of organizer. (Amphibia) b Cytodifferentiation during cleavage. (Amphibia) c Nucleo-cytoplasmic interaction during early development. (Amphibia) d Cell interactions in relation to cytodifferentiation. (Amphibia) TAKATA, K. D.Sc. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, Japan • TAKAYA, H. D.Sc, Prof. — Dept. of Biol., Fac. of Sci., Konan Uiv. Okamoto, Motoyama- cho, Higashinada-ku, KOBE, Japan • TAKEDA, H. M.D., Dr.Med.Sci., Prof. — Dept. of Anat., Div. I, Kobe Univ. School of Med., Kusunoki-cho 7, Ikuta-ku, KOBE, (650) Japan a Phylogenetic and ontogenetic studies on the cerebellum and inferior olive. (Pisces; Amphibia; Reptilia; Aves; Mammalia) TAKEICHI, M. M.Sc. — Lab. of Cell Sci., Inst, of Biophys. and Molec. Biol., Fac. of Sci. Univ. of Kyoto, Sakyo-ku, KYOTO, Japan a Contact mechanisms of cell to substrate. Gallus gallus (Aves) b Stability in the differentiation of chondrocytes and lens epithelial cells in clonal cell culture. Gallus gallus (Aves), Mus bactrianus (Rodentia) (with T. S. OKADA and G. EGUCHI) TAKEUCHI, H. D.Sc. — Biol. Lab., Osaka Dental Coll., Saka, HIRAKATA, Osaka Pref., Japan a Analysis of antigens of the testic. Mas musculus (Rodentia) b Epithelial-mesenchymal interaction in in vitro differentiation of tooth germs. Mas musculus (Rodentia) TAKITA, S. N.D., Ph.D., Prof. — 1st Dept. of Surg., School of Med., Tokushima Univ., Kuramoto-cho, TOKUSHIMA-City, 770 Japan a Functional development of the alimentary and biliary tracts in the earlier stages of the fetus. Homo sapiens (Primates) b Development of the nerve-plexus of fetal intestine and gall-bladder (electron microscopy). Homo sapiens (Primates) TAKITA, T. M.Agric. — Dept. of Aquatic Biol., Fac. of Fish., Nagasaki Univ., 1-14 Bunkyo machi, NAGASAKI, 852 Japan a Developmental morphology and physiology (artificial insemination and incubation of eggs in various conditions of temperature and salinity). Neosalanx reganius (Clupeida), Liza haematocheila, Nibea albtflora, Argyrosomus argentatus (Pevcida, Teleostei) b Formation of heart and gill in embryos and newly hatched larvae. (Clupeina; Salmonina; Mugilina; Pevcina; Callionymina; Gobiina, Teleostei) TAMANOI, I. Ph.D. — Div. of Radiat. Hazards, Natl. Inst, of Radiol. Sci., Anagawa 4-9, CHIBA, Japan a Radiation effects on haematopoietic organs (immuno-chemical study). Mus musculus (Rodentia) TAMARELLE (GARAUDY), Mrs. M. — Lab. de Zool. Exper., Univ. de Bordeaux I, Av. des Facultes, 33 TALENCE, France a Developpement embryonnaire. (Collembola) TAMARIN, A. M.S.D., Prof. — Dept. of Oral Biol., School of Dent., Univ. of Washington, SEATTLE, Wash. 98105, U.S.A. a Differentiation and development of branchial arches. (Rodentia) TAMBOISE, E. Dr.en Med., Prof. — Lab. d'Histol.-Embryol.B, Fac. de Med., 45 rue des Sts.Peres, 75 PARIS Vie, France TANABE, K. B.S. — Lab. of Embryol., Fac. of Sci., Osaka City Univ., 459 Sugimoto-cho, Sumiyoshi-ku, OSAKA, Japan a Germ cell formation. Xenopus laevis (Anura) TANAKA, K. M.A. — Inst, of Zool., Tokyo Kyoiku Univ., Otsuka 3-29-1, Bunkyo-ku, TOKYO, Japan 177 a Recognition of specificity in compound forms. Botryllus primigenus, Botrylloides violaceum (Ascidiacea) (with H. WATANABE) b Differentiation of endostyle. Botryllus primigenus, Halocythia roretzi (Ascidiacea) TANAKA, O. M.D. — Dept. of Anat., Kyoto Univ., Konoe-cho, Yoshida, Sakyo-ku, KYOTO 606, Japan a Epidemiology of skeletal anomalies in embryos and foetuses. Homo sapiens {Primates) b Tests on drug teratogenicity. Macaca mulatta, M. fuscata (Primates) TANIMURA, T. M.D. — Dept. of Anat., Kyoto Univ., Konoe-cho, Yoshida, Sakyo-ku, KYOTO 606, Japan a Epidemiology and pathogenesis of malformations in embryos. Homo sapiens (Primates) b Teratogenicity test of chemicals. Macaca fuscata, M. mulatta (Primates) TARDENT, P. Dr.phil., Prof. — Zool.-Vergl. Anat. Inst., Univ. Zurich, Kiinstlergasse 16, CH-8006 ZURICH, Switzerland • TARIN, D. M.D. — Anat. Dept., Med. School, Leeds Univ., LEEDS LS2 9NL, England a The mechanism of neural induction, especially the role of ecto- and mesodermal components and the nature of secondary nervous systems induced by organiser transplants (histology, histochemistry, electron microscopy, time lapse cinematography). Xenopus laevis (Anura) b Epithelial-mesenchymal interactions in limb development (histology, histochemistry, electron microscopy, transplantation) . Xenopus laevis (Anura) TARKOWSKI, A. K. Ph.D., D.Sc. — Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Krakowskie Przedmiescie 26/28, WARSZAWA 64, Poland • a Mechanisms of cell differentiation in early development. Mus musculus (Rodentia) b Experimental chimerism. Mus musculus (Rodentia) c Sexual differentiation and gametogenesis. Mus musculus (Rodentia) TARTAR V Ph.D., Prof. — Dept. of Zool., Univ. of Washington Field Lab., R.l Box 250, NAHCOTTA, Wash. 98637, U.S.A. a Production of decorticated cells by micrurgical or chemical methods. Stentor coeruleus (Ciliata) b Cytokinesis studied by micrurgy. Stentor coeruleus (Ciliata) c Effects of single heat shocks. Stentor coeruleus (Ciliata) d Mouthparts induction in the oral primordium. Stentor coeruleus (Ciliata) e Bleaching and pigment regeneration. Stentor coeruleus (Ciliata) f Size inheritance and regulation of number of body kinetics. Stentor coeruleus (Ciliata) TASSAVA, R. A. Ph.D. — Dept. of Zool., Coll. of Biol. Sci., Ohio State Univ., 1735 Neil Ave., COLUMBUS, Ohio 43210, U.S.A. a Role of hormones, nerves, and RNA synthesis in limb regeneration. Notophthalmus viridescens (Urodela) b Thyroid hormones and development. Notophthalmus viridescens (Urodela) TATA, J. R. D.Sc. — Developm. Biol. Div., Natl. Inst, for Med. Research, Mill Hill, LONDON N.W.7, England a Thyroid hormone-induced metamorphosis. Rana catesbeiana, Xenopus laevis (Anura) b Effect of hormones on organ cultures. Rana spec, Xenopus laevis (Anura) c Early metamorphic competence of larvae: biochemical analysis of the acquisition of response of very early stages of larval cells (Nieuwkoop-Faber stages 38-41) to thyroid hormones that resembles spontaneous metamorphic response at later stages. Xenopus laevis (Anura) d Prevention by ovine prolactin of developmental changes induced by thyroid hormones studied at the level of nucleic acid synthesis in target tissues (liver, tail, skin). Rana catesbeiana (Anura), Diemictylus viridescens (Urodela) e Induction of yolk proteins by oestrogen in male liver in vivo and in vitro. Same species as c f Regulation of translation of messengers for egg yolk proteins. Same species as c TA VERNE, M. — Zool. Lab., Univ. of Amsterdam, Plantage Doklaan 44, AMSTERDAM C, Netherlands a Umbilical sphincter. Oryctolagus cuniculus (Lagomorpha) b Placenta (Mammalia) TAYLOR, A. C. Ph.D., Prof. — Dept. of Anat., Univ. of Texas Dental Branch, P.O.Box 20068, HOUSTON, Tex. 77025, U.S.A. • a Effects of macrophage migration inhibitors (MIF) on morphogenetic cell movements during early development. Gallus domesticus (Aves) b Development of the attachment of epithelial cells to the tooth. Rattus spec. (Rodentia), Callithrix jacchus (Primates) TAYLOR, Miss E. L. Ph.D. — Dept. of Histol. and Embryol., School of Dental Med., Univ. of Pennsylvania, 40th and Spruce Sts., PHILADELPHIA, Pa. 19104, U.S.A. a Maintenance of differentiation in cultured heart cells. Gallus domesticus (Aves) TAYLOR, Miss J. M. Dr. — Lab. of Cell Biol., Dept. of Biol. Sci., Wellesley Coll., WEL- LESLEY, Mass. 02181, U.S.A. TCHELEBI (PAPILLON), Mrs. M. — Lab. d'Evol. des Etres Organises, Fac. des Sci., 105 Bd. Raspail, 75 PARIS Vie, France TCHERNIAEV, G. Cand.sci.biol. — Inst. Limnol. de l'Acad. des Sci. de l'URSS, LIST- VENITCHNOiE sur Baikal, region d'Irkoutsk, U.S.S.R. 178 TEICHMAN, R. J. Ph.D. — Dept. of Anat, Univ. of Hawaii, 1960 East- West Rd., HONO- LULU, Hawaii 96822, U.S.A. a Sperm maturation, capacitation, egg-sperm interaction and fertilization. Herpestes auro- punctatus (Carnivora) , (Rodentia; Lagomorpha) TEITELMAN de PINCZUK, Mrs. G. N. Ph.D. — Inst, de Anat. Gen. y Embriol., Fac. de Medicina, Paraguay 2155, BUENOS AIRES, Argentina a Biochemical differentiation of nervous tissue in vitro and in vivo, especially synthesis of neurotransmitters. Gallus domesticus (Aves) TEMIN, H. M. Ph.D., Prof. — McArdle Lab. for Cane. Res., Univ. of Wisconsin, 450 N.Randall Ave., MADISON, Wis. 53706, U.S.A. TEMPEL, K. Dr.med.vet. — Inst, fur Pharmakol., Toxicol, und Pharmazie der Tierarztl. Fak., Univ. Munchen, Veterinarstr. 13, 8 MUNCHEN 22, W.Germany a Investigations on functions of DNAses in embryonic tissues. Gallus domesticus (Aves) b Effect of ionizing radiations and biological alkylating agents on embryonic DNA and DNAses. Gallus domesticus (Aves) c Influences of nuclease inhibitors (polyanions) on nucleic acid metabolism in the embryo. Gallus domesticus (Aves) d Phosphatases and lysosomes in embryonic tissues; behaviour during development and under the influence of ionizing radiation and biological alkylating agents. Gallus domesticus (Aves) TEMPLE, D. — Lab d'Histol., Fac. de Med., 2 rue Ecole de Medecine, 34 MONTPELLIER, France TENCER, Miss R. Dr.en Sci. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des Chevaux, 1640 RHODE-ST-GEN£SE, Belgium • a Metabolism during development. Paracentrotus spec, Avbacia spec. (Echinoidea), Ambysto- ma spec, Pleurodeles spec. (Urodela), Bufo spec, Rana spec. (Anura) TEPLITZ, Miss N. A. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, US.S.R. a Restoration of regeneration capacity of limbs after x-irradiation (biochemistry). Amby sto- ma mexicanum (Urodela) (with L. V. POLEZHAEV and S. J. TUCHKOVA) TERAYAMA, H. Ph.D., Prof. — Zool. Inst., Univ. of Tokyo, Hongo 7-3, Bunkyo-ku, TOKYO, 113 Japan a Composition and biochemical activities of germ cell nuclei and early changes after fertilization. Pseudocentcotus depressus (Echinoidea) b Mechanism of homeostatic growth regulation in liver regeneration. Rattus norvegicus (Rodentia) c Ciliary regeneration and cell association in embryos. Pseudocentrotus depressus, Anthocida- ris crassispina (Echinoidea) TERMAN, S. A. Ph.D. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA-City, Iowa 52240, U.S.A. a Control of gene activity, synthesis of nuclear proteins during early development. Arbacia punctulata. Strong ylocentrotus purpuratus (Echinoidea) b Control of protein synthesis of the translation level; polyribosome-forming factors. Artemia salina (Anostraca, Crustacea) , Arbacia punctulata (Echinoidea) TERNEBY, Miss U. K. Fil.lic — Inst, of Zool., Univ. of Gothenburg, Fack, S-400 33 GOTHENBURG 33, Sweden a Development of the hypothalamo-hypophysial connections. Oryctolagus cuniculus (Lago- morpha), Rattus spec. (Rodentia) b Development of the hypophysial drainage. Oryctolagus cuniculus (Lagomorpha) TESTA-BAPPENHEIM, I. Dr.med.A.O., Prof. — 1st. di Antropol. Criminol. dell'Univ., Corso G.Galilei 22, TO 126 TORINO, Italy a Experimental embryology. Triton alpestris, T. taeniatus (Urodela) b Developmental genetics and pathology. Homo sapiens (Primates) TEUCHERT, Mrs. G. Dr.rer.nat. — Inst, fur Flugmedizin der DFVLR, Kolner Str. 70, 532 BAD GODESBERG, W.Germany a Embryology. (Bdelloidea, Rotatoria) , (Macrodasyoidea, Gastrotricha) b The influence of simulated weightlessness by rotation on the early development (polariza- tion). Ascaris (Nematoda), (Anura) (with W. BRIEGLEB) c The influence of simulated weightlessness (by submersion) on metamorphosis. (Anura) with W. BRIEGLEB) TEULADE, P. Dr.es Sci. — Sect, de Biol. Gener. et Appl., Univ. de Lyon I, 43 Bd. du 1 1 Novembre 1918, 69 VILLEURBANNE, France a Action des rayonnements sur le developpement embryonnaire. Bombyx mori ( Lepidoptera) THEILER, K. Dr., Prof. — Anat. Inst, der Univ., Gloriastr. 19, 8006 ZURICH, Switzerland a Developmental genetics of the vertebral column. Mus musculus (Rodentia) THESINGH, Miss C. W. M.D. — Lab. for Cell Biol, and Histol., State Univ., Rijnsburger- weg 10, LEIDEN, Netherlands a Development and function of ultimobranchial body in organ culture. Gallus domesticus (Aves) 179 b Hormonal regulation of calcium metabolism and bone formation in embryos. Same species as a c Function of chorio-allantoic membrane. Same species as a THIEBOLD, J. J. Dr.es Sci., Prof. — Inst, de Zool. et d'Embryol. Exp., Univ. de Stras- bourg, 12 rue de l'Universite, 67 STRASBOURG, France THIERY, M. M.D., Ph.D., Prof. — Dept. of Obstet. and Gynecol., Academic Hosp., Univ. of Gent, De Pintelaan, 9000 GENT, Belgium a Intra-uterine hypoxia (determination of blood lactate/pyruvate balance and acid/base balance) . Homo sapiens (Primates) b Longitudinal study of twins and correlation with genotype as determined by placental membrane morphology, placental zymograms, and extensive bloodtyping. Same species as a c Histochemistry of placenta. Same species as a d Enzyme histochemistry of female genital tract. (Mammalia) THOMAS, C. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des Chevaux, 1640 RHODE-ST-GENESE, Belgium a Biochemistry and electron microscopy of RNA in early stages of oogenesis. Xenopus laevis (Anuca) THOMAS, D. B. B.Sc. — Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston, BIRMINGHAM B 15 2TJ, England a The development of the lympho-myeloid complex. Rattus spec, Mus musculus, Cavia cobaya (Rodentia) , Macaca mulatta, Homo sapiens (Primates) b The transplantation of foetal lympho-myeloid cells. Mus musculus (Rodentia) c The effects of irradiation on the developing lympho-myeloid tissues. Mus musculus (Rodentia) THOMAS, Miss N. B.A. — Anat. Dept., Med. School, University Walk, BRISTOL BS8 1TD, England a RNA in induced and uninduced ectoderm of late gastrulae (acrylamide gel electro- phoresis) . Xenopus laevis (Anura) THOMAS, R. J. Ph.D. — Dept. of Anat., Creighton Univ., 657 North 27th St., OMAHA, Neb. 68131, U.S.A. a Epiboly and cell differentiation (transmission and scanning electron microscopy, light microscopy) . Brachydanio rerio (Teleostei) THOMMES, R. C. Ph.D., Prof. — Dept. of Biol. Sci., De Paul Univ., 1036 W. Belden Ave., CHICAGO, 111. 60614, U.S.A. a Hormonal control of yolk sac membrane metabolism. Gallus domesticus (Aves) THOMPSON, R. P. Ph.D., Prof. — Dept. of Biol. Sci., State Univ. Coll. at Brockport, BROCKPORT, N.Y. 14420, U.S.A. a The inhibitory effects of tissue extracts on homologous organ development, particularly the effect of whole eye extracts and extracts of eye components on the development of the lens in vitro. Gallus domesticus (Aves) THOMPSON, R. S. Ph.D. — Dept. of Pathol., Harbor Gen. Hosp., 1000 W. Carson St., TORRANCE, Calif. 90509, U.S.A. a Fertilization in vitro and in vivo. (Mammalia) THORIG, G E. W. Drs. — Genet. Inst., Univ. of Utrecht, Opaalweg 20, UTRECHT, Netherlands a Isozymes and morphological variations. Drosophila melanogastet (Diptera) THORNTON, C. S. Ph.D., Prof. — Dept. of Zool., Coll. of Nat. Sci., Michigan State Univ., EAST LANSING, Mich. 48823, U.S.A. • a Influence on regeneration of ingrowth of brachial nerves into aneurogenic fore limbs grafted orthotopically to normal hosts. Ambystoma maculatum (Ucodela) b Recuperation of regeneration in nerve-dependent, formerly aneurogenic limbs after pro- longed denervation. Same species as a c Endocrine influence on regeneration. Ambystoma spec, Notophthalmus viridescens (Urode- la) , Xenopus spec. (Anura) THURMOND, W. Ph.D., Prof. — Biol. Sci. Dept., Calif. State Polytechnic Coll., SAN LUIS OBISPO, Calif. 93401, U.S.A. a Onset of melanophore-stimulating activity by the pars distalis and pars intermedia. Ambystoma tigrinum, Hyla regilla (Amphibia) b Development of hypothalamic and pituitary control of the adrenal cortex; (extirpation, transplantation and histochemistry). Ambystoma tigrinum (Urodela), Xenopus laevis, Hyla regilla (Anura) TIBA, T. Dr.Vet.Med. — Dept. of Vet. Obstet., Fac of Vet. Med., Hokkaido Univ., N 18, W 9, SAPPORO, 060 Japan a Kinetics of spermatogenesis, especially with regard to the establishment of the wave pattern of the seminiferous epithelium. Mustela vison (Carnivora) b Histological investigations on the diurnal cycles of spermatogenesis. 1. Spermiation. 2. Meiotic activity. Mus musculus (Rodentia) TIBBITS, F. D. Ph.D., Prof. — Dept. of Biol., Univ. of Nevada, RENO, Nev. 89507, U.S.A. TICKLE, Miss C. A. B.A. — Dept. of Biol., Yale Univ., Kline Biol. Tower, NEW HAVEN, Conn. 06520, U.S.A. 180 TIEDEMANN, H. Dr.med., Dr.rer.nat., Prof. — Inst, fur Biochem. und Molek. Biol., Fach- bereich I (Vorklinik), Freie Univ. Berlin, Arnimallee 22, 1 BERLIN 33, W.Germany • a Morphogenetic factors, characterization and mechanism of action. (Amphibia) (with Mrs. H. TIEDEMANN) b RNA and protein metabolism in development. (Amphibia), Gallus domesticus (Aves) TIEDEMANN (WAECHTER), Mrs. H. Dr.rer.nat. — Inst, fur Biochem. und Molek. Biol., Fachbereich I (Vorklinik), Freie Univ. Berlin, Arnimallee 22, 1 BERLIN 33, W.Germany a Morphogenetic factors, characterization and mechanism of action. (Amphibia) (with H. TIEDEMANN) TIMASHKEVICH, Mrs. T. B. Cand.med.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Regeneration and cell division in the stomach. Rattus norvegicus, Mus musculus (Rodentia) b Quantitative evaluation of restoration of resected stomach. Same species as a TIMMERMANS, Miss L. P. M. Ph.D. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands a Cytochemistry and physiology of shell secretion. Lymnaea stagnalis, Pomacea bridgesi diffusa (Gastropoda) , Anodonta spec. (Lamellibranchia) b Germinal localization in eggs. Dentalium spec. (Scaphopoda) TINOZZI MASSARI, Mrs. S. Ph.D. — Dept. of Histol. and Embryol., Univ. of Pavia, Piazza Botta 10, 27100 PAVIA, Italy a The differentiation of skin. Salmo irideus, S. fario (Teleostei) TITOVA, Mrs. I. I. Cand.biol.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Role of tissue antigens in eye development. Gallus domesticus (Aves) TOBIN, C. E. Ph.D., Prof. — Dept. of Human Biol., Univ. of Colorado Dent. Sch., 4200 E. 9th Ave., DENVER, Colo. 80220. U.S.A. a Blood supply and mineralization of fetal teeth. Homo sapiens (Primates) TOERIEN. M. J. Ph.D., D.Sc, Prof. — Dept. of Anat., Univ. of the O.F.S., P.O.Box 339, BLOEMFONTEIN, S.Africa a Morphological and experimental studies on cranial morphogenesis (by means of extirpation, heteroplastic and orthotopic transplants, the contributions and interrelationship of the visceral, axial, and capsular skeleton are studied). Ambystoma spec, Triturus spec (Urodela), Xenopus spec. (Anuva), Chelydra serpentina (Chelonia), Anas boschas, Spheniscus demersus, Gallus domesticus (Aves), Oryctolagus cuniculus (Lagomorpha) b Microsurgical induction of malformations of the central nervous system, sense organs, and skull. Gallus domesticus (Aves) TOIT, C. A. du Ph.D., Prof. — Zool. Inst., Fac of Sci., Univ. of Stellenbosch, STELLEN- BOSCH, S.Africa • TOIVONEN, S. I. Ph.D., M.D., Prof. — Lab. of Exper. Embryol., Dept. of Zool., Univ. of HELSINKI, Arkadiankatu 7, HELSINKI 10, Finland • a The specific action of heterogeneous inductors. Triturus spec. (Urodela) b The mechanism of primary induction. Same species as a (with L. O. SAXEN, Dept. of Pathol.) c Cell interaction. Same species as a TOKIN, B. P. Dr.Biol.Sci., Prof. — Dept. of Embryol.. Leningrad State Univ., Mendeleevsky St. 5, LENINGRAD V-164, U.S.S.R. a Regeneration, asexual reproduction, and somatic embryogenesis. Dugesia tigrina (Turbella- ria) b Morphogenetic processes in starving animals. Dugesia tiqrina (Turbellaria) TOKUNAGA, Miss C. Ph.D. — Dept. of Zool., Univ. of California. BERKELEY, Calif. 94720, U.S.A. TOKUYASU, K. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a Spermatogenesis in relation to genetics. Drosophila melanogaster (Diptera) b Meiosis: structure of synaptonemal complex. Lilium longiflorum (Liliaceae) TOMPKINS, R. Ph.D. — Dept. of Biol., Princeton Univ., PRINCETON. N.J. 08540, U.S.A. a Origin and function in development of inclusions in eggs. Ambystoma mexicanum (Urodela), Xenopus laevis (Anura) b Effects of mutant genes on the development of behavior. Ambystoma mexicanum (Urodela) c Independently mutable sensitivities to thyroxine of metamorphic processes. Same species as b TONDURY, G. Dr., Prof. — Anat. Inst, der Univ., Gloriastr. 19, 8006 ZURICH, Switzer- land • a Action of different viruses on embryos, pathogenesis, and way of infection. (Vertebrata) b Development of the lymphatic system. (Vertebrata) TONEBY, M. I. Fil.kand. — Wenner-Gren Inst., Norrtullsgatan 16 S-l 13 45 STOCKHOLM, Sweden a Metabolism of tryptophane and 5-hydroxytryptamine (serotonin). (Echinoidea) b Embryological development of collagen. (Echinoidea) 181 TONGE, C. H. D.D.Sc, Prof. — Dept. of Oral Anat., Dental School, Northumberland Rd., NEWCASTLE upon Tyne NE1 8TA, England a Tooth development and eruption b Effect of severe undernutrition on the development and growth of teeth and jaws (including rehabilitation) . Sus scrofa (Artiodactyla) c Protein calory deficiency and rehabilitation relative to the development and growth of teeth and jaws. Sus scrofa (Artiodactyla) TONNEYCK (MULLER), Mrs. I. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., Netherlands a Experimental studies on the morphogenesis of the skull. Gallus domesticus (Aves) TORII, K. Dr. — Dept. of Biochem., Nippon Med. School, 1-1-5 Sendagi, Bunkyo-ku, TOKYO, Japan a Genetic control of hemoglobin switch during metamorphosis. Rana catesbeiana (Anura) (with R. SHUKUYA) TORO, I. M.D., Prof. — Inst, of Histol. and Embryol., Med. Univ., Tuzolto u. 58, BUDA- PEST IX, Hungary a Experimental and physiological embryology; teratogenesis. Pleurodeles waltlii, Ambystoma mexicanum (Urodela), Gallus domesticus (Aves), Rattus rattus (Rodentia) TORO, I., Jr. M.D. — Inst, of Histol. and Embryol., Med. Univ., Tuzolto u. 58, BUDAPEST IX, Hungary a Developmental pathology and teratogenesis (electron microscopy). Rattus rattus (Roden- tia) b Placental ultrastructure. Same species as a TOROK, L. J. Ph.D. — Inst, of Histol. and Embryol., Med. Univ., Tuzolto u. 58, BUDAPEST IX, Hungary a Regeneration and somatic embryogenesis with special reference to the morphogenetic role of the nervous system. Dugesia (= Euplanaria) lugubvis (Turbellaria) b Nucleo-histone changes during morphogenetic processes of regeneration. Same species as a c Nucleo-histone changes during embryonic development and regeneration. Tritutus cristatus (Urodela), Xenopus laevis (Anura) TORRES (WINTENBERGER), Mrs. S. Dr.es Sci.Nat. — Station Centr. de Physiol. Anim., Inst. Natl, de la Recherche Agronom., C.N.R.Z., 78 JOUY-en-JOSAS, France a La mortalite embryonnaire precoce; evolution des oeufs aux premiers stades, dans les conditions normales et avec variation de l'equilibre endocrinien de la mere. Ovis aries (Artiodactyla) b La mortalite embryonnaire. Sus scro[a (Artiodactyla) c Fertilization and development of superovulated eggs. Ovis aries (Artiodactyla) d Activite respiratoire des oeufs en liaison avec la mortalite embryonnaire. Ovis aries (Artiodactyla) e L'activite respiratoire des blastocystes ages de 5 jours. Oryctolagus cuniculus (Lagomor- pha) TOTO, P. D. D.D.S., Prof. — Dept. of Oral Pathol., Sch. of Dent., Loyola Univ., 1757 W.Harrison St., CHICAGO, 111. 60612, U.S.A. TOWERS, B. M.B., Ch.B. — Dept. of Paediat. & Anat., Center for the Health Sci., U.C.L.A., LOS ANGELES, Calif. 90024, U.S.A. a Development of fetal lung and changes at birth (experimental). Rattus rattus (Rodentia), Ovis aries (Artiodactyla) b Structure and functions of fetal larynx (experimental). Rattus rattus (Rodentia), Ovis aries (Artiodactyla) TRAMPUSCH, H. A. L. Ph.D. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., Netherlands • a Mechanics of the morphogenetic field during regeneration. Ambystoma mexicanum (Urodela) b Compatibility of xenoplastic blastemata, used for the study of regeneration. (Anura, Urodela) c Regeneration from extremities, situated in heterotopic positions. Xenopus laevis (Anura) d Analyses of fracture-repair. Same species as a (with H. J. PRINS) e Embryonic constitution of the dermis and its behaviour during regeneration. Same species as a f Dedifferentiation and differentiation in blastemata. Dugesia spp. (Turbellaria) TRASLER, Mrs. D. G. Ph.D. — Dept. of Biol., McGill Univ., MONTREAL 110, Que., Canada a Mode of inheritance of, and elements of face shape that predispose an embryo to cleft lip. Mus musculus (Rodentia) TRAURIG, H. H. Dr., Prof. — Dept. of Anat., Med. Center, Univ. of Kentucky, LEXING- TON, Ky. 40506, U.S.A. a Analysis of the physico-chemical properties of DNA in differentiating cells. Triturus viridescens (Urodela), Gallus domesticus (Aves), Mus musculus, Rattus rattus (Rodentia), Homo sapiens (Primates) (with S. P. MODAK) 182 b The postnatal development of activity of several acid hydrolase enzymes in the brain. Rattus norvegicus (Rodentia) (with J. N. ALLEN) TRELSTAD, R. L. M.D. — Developm. Biol. Lab., Massachusetts Gen. Hosp., BOSTON, Mass. 02114, U.S.A. • a Development of the fibrous architecture of the orthogonal collagen lamellae in the corneal stroma. Gallus domesticus (Aves) b Characterization of the molecular species of collagen in developing connective tissues. Gallus domesticus (Aves) c Synthesis and degradation of hyaluronic acid in the developing cornea. Gallus domesticus (Aves) TRIGG, Miss M. J. Ph.D. — Dept. of Genet., Albert Einstein Coll. of Med., Yeshiva Univ., Eastchester Rd. & Morris Park Ave., NEW YORK, Bronx, N.Y. 10461, U.S.A. a Genetic control of hair differentiation and enzyme differentiation. Mus musculus (Rodentia) TRINKAUS, J. P. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. • a Cell contacts, cell movements, and mechanisms of morphogenetic movements with techniques of cell culture, cinemicrography, electron microscopy, cell dissociation and reaggregation, electrophysiology and chemistry of the cell surface, and microsurgery. Fundulus heteroclitus (Teleostei), Xenopus laevis (Anuca), Gallus domesticus (Aves) b Mechanism of epiboly (ultrastructure, cytochemistry, time-lapse cinematography). Fundulus heteroclitus (Teleostei) (with T. BETCHAKU) TRIONE, E. J. Dr., Prof. — Dept. of Bot. and Plant Pathol., Oregon State Univ., COR- VALLIS, Ore. 97331, U.S.A. a Biochemical mechanisms of flowering. (Angiospermae) b Biochemical mechanism of light-induced sporulation. (Fungi) TRIPLETT, E. L. Ph.D., Prof. — Dept. of Biol. Sci., Univ. of California, SANTA BARBA- RA, Calif. 93106, U.S.A. a Tyrosine oxidase synthesis during development. Rana pipiens (Anura) TROSCH, W. — Inst, fur Genet., Univ. des Saarlandes, 66 SAARBROCKEN 11, W.Germany a Measurements of inorganic ions and their fluxes in cell nuclei during development. Chiconomus thummi (Diptera) TRUMAN, D. E. S. Ph.D. — M.R.C. Epigenet. Res. Group, Inst, of Anim. Genet, Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland, U.K. • a Immunochemistry of lens development. Xenopus laevis (Anura), Gallus domesticus (Aves) (with J. C. CAMPBELL and R. M. CLAYTON) b Antigenic studies of lens regeneration. Xenopus laevis (Anura) (with J. C. CAMPBELL) TRUSLOVE, Miss G. M. Ph.D. — Dept. of Anim. Genet., Univ. Coll. London, Wolfson House, 4 Stephenson Way, LONDON NW1 2HE, England a The analysis of skeletal variation in animals selected for large or small size and controls. Mus musculus (Rodentia) TSAFRIRI, A. M.Sc. — Dept. of Biodynamics, Weizmann Inst, of Sci., P.O.B. 26, RE- HOVOT, Israel a Nucleic acid metabolism of ovum. Rattus norvegicus (Rodentia) b Maturation and hormonal requirements of follicle enclosed ova in vitro. Rattus norvegicus (Rodentia) TSUKAHARA, J. M.Sc. — Marine Biol. Station, Nagoya Univ., Sugashima, TOBA-shi. Mie-ken, 517 Japan a Electron microscopy and biochemistry of oogenesis. Hemicentrotus pulcherrimus, Mespilia globulus (Echinoidea) TUCHKOVA, Mrs. S. J. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Restoration of regeneration capacity of limbs after x-irradiation. Ambystoma mexicanum (Urodela) (with L. V. POLEZHAEV and N. A. TEPLITZ) TUCHMANN-DUPLESSIS, H. Prof. — Lab. d'Histol.- Embryol. A, Fac. de Med., 45 rue des Sts.Peres, 75 PARIS Vie, France • a Anencephalie. Homo sapiens (Primates) b Teratogenese par sulfamides hypoglycemiants, antimetabolites. Rattus spec. (Rodentia) (avec L. MERCIER) c Influence des hormones sur le developpement foetal. Rattus spec. (Rodentia) d Influence des alcaloides du Rauwolfia, de la reserpine et de la deserpidine, sur le develop- pement. Same species as b (avec L. MERCIER) e Influence des neuroleptiques sur la fertilite et le developpement foetal. Rattus spec, Mus spec. (Rodentia), Oryctolagus cuniculus (Lagomorpha) f Diabete experimental et grossesse. (Mammalia) g Influence des antimitotiques sur la gestation. (Rodentia) (avec L. MERCIER) TUCKER, J. S. Ph.D., Prof. — Pacif. Marine Station, Univ. of the Pacific, DILLON BEACH, Calif. 94929, U.S.A. a Gametogenesis and spawning by gross observation, histological and histochemical methods. Chone mollis, Cirriformia spivabvancha, Hemipodus borealis, Nephtys caecoides, Axiothella 183 rubrocincta (Polychaeta), Phoronopsis viridis (Phoronida), Macoma secta, M. nasuta (Lamellibranchia) -..'i^«M TUFT, P. H. Ph.D. — Dept. of Zool., Univ. of Edinburgh, West Mains Rd.. EDINBURGH EH9 3JN, Scotland, U.K. • TUMANISHVILI, G. D. Dr., Prof. — Dept. of Biophys., Inst, of Exper. Morphol., Acad, of Sci. of the Georgian SSR., 51 Kamo St., TBILISI 2, U.S.S.R. a Role of chemical intercellular interactions in regulation of the rate of cell multiplication and intracellular synthesis studied in cell cultures and in vivo. Gallus domesticus (Aves), Rattus norvegicus, Mus musculus (Rodentia) b Participation of intracellular substances in gastrulation. Misgurnus fossitis (Teleostei) c Participation of nuclear and cytoplasmic substances in control of state of DNA in chromatin. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) TUNG, T. C. Dr., Prof. — Inst, of Zool., Acad. Sinica, PEKING, Haitien, People's Republ. of China r^xm * ouor TUPPER, J. T. Ph.D. — Dept. of Biol., Syracuse Univ., College Place 130, SYRACUSE, N.Y. 13210, U.S.A. a The role of intercellular communication and membrane permeability in early embryonic differentiation ,«».«««, TURCHINI, J. P. D.M., D.Sc, Prof. — Lab. d'Histol.-Embryol., Fac. de Med., Bd. Winston Churchill, B.P. 38, 63 CLERMONT-FERRAND, France a Cytology of neonatal liver; differentiation of intercellular junctions, characters of micro- bodies; histochemical differentiation. Mus musculus (Rodentia) (with R. POURHADI and P. MALET) ' , e TURNER, D. C. Ph.D. — Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonnegg- str. 5, 8006 ZURICH, Switzerland a I n v i t r o differentiation of imaginal discs. Drosophila melanogaster (Diptera) TWEEDELL K. S. Ph.D., Prof. — Dept. of Biol., Univ. of Notre Dame, NOTRE DAME, Ind. 46556, U.S.A. « a Oocyte development and incorporation of radioactive precursors. Pectinarta gouldu (Polychaeta) b Cell source and movement during hydranth regeneration. Tubularia crocea (Hydrozoa) c Renal tumor induction by subcellular fractions in embryonic and larval stages. Rana pipiens TYLER, C. Ph.D., D.Sc, Prof. — Dept. of Physiol. & Biochem., The Univ., Whiteknights, READING RG6 2AJ. England a Structure and properties of the egg shell. (Aves) TYNDALE-BISCOE, C. H. Ph.D. — Dept. of Zool., School of Gen. Studies, Australian Nat. Univ., P.O.Box 4, CANBERRA, A.C.T. 2600, Australia a Early development, including fine structure. Antechinus stuarti (Marsupialia) b Fine structure of the blastocyst. Macropus eugenii (Marsupialia), Oryctolagus cuniculus (Lagomorpha) c Factors involved in resumption of development by blastocysts in diapause. Macropus eugenii (Marsupialia) TYSZKIEWICZ, Mrs. K. M.Sc. — Zool. Dept.. Jagiellonian Univ., ul.Krupnicza 50, KRAKOW, Poland a Embryogenesis of nervous system. Tetrodontophora bielanensis (Collembola) UBBELS, Miss G. A. Ph.D. — Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 1, Universiteitscentrum "De Uithof", UTRECHT, Netherlands a Cytochemical heterogeneity of the egg, cleavage stages and early embryo. Amby stoma mexicanum, Xenopus laevis (Amphibia) b Cytochemistry of the origin of dorso-ventral polarity of the egg. Same species as a (with P. D. NIEUWKOOP) UCHIDA, T. A. Dr.Agr. — Zool. Lab., Fac. of Agric, Kyushu Univ., FUKUOKA, Japan a Reproduction and embryology. Pipistrellus abramus, Miniopterus schreibersi (Chiroptera) UEMURA, I. — Embryol. Sect., Dept. of Biol., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa-machi, Setagaya-ku, TOKYO, 158 Japan a Electron microscopy of the development of primary mesenchyme cells. Hemicentrotus pulcherrimus (Echinoidea) ULBERG L C. Ph.D., Prof. — Dept. of Anim. Sci., North Carolina State Univ., P.O.Box 5127, RALEIGH, N.C. 27607, U.S.A. ULLMANN, Miss S. L. Ph.D. — Dept. of Zool., The Univ., GLASGOW W.2, Scotland, U.K. • ULRICH, H. Dr.phil., Prof. — Dept. of Zool., Swiss Fed. Inst, of Technol., Universitatstr. 2, 8006 ZURICH, Switzerland a Action of x-rays on eggs and embryos. Drosophila melanogaster (Diptera) b Morphology, physiology, and cytology of paedogenetic-bisexual reproduction cycle. Heteropeza pygmaea (- Oligarces paradoxus), Miastor metraloas (Cecidomyiidae, Diptera) c Time-lapse cinemicrography of embryonic development and chromosome elimination in early cleavage. Heteropeza pygmaea (Cecidomyiidae, Diptera) 184 URBAN, P. Ph.D. — Dept. of Biol. Sci., Union College, SCHENECTADY, N.Y. 12308, U.S.A. a Fine structure of gametogenesis, fertilization and early development. Bcyopsis hypnoides (Chlorophyceae) URBANI, E. Prof. — 1st. di Istol. ed Embriol., Univ. di Roma, Citta Universitaria, 00185 ROMA, Italy • URSPRUNG, H. Ph.D., Prof. — Lab. for Developm. Biol., Swiss Fed. Inst, of Technol., Sonneggstr. 5. 8006 ZURICH, Switzerland • a Biochemistry of differentiation. Drosophila melanogaster (Dipteca), Mus musculus (Roden- tia) b Organization of imaginal discs. Drosophila melanogaster (Diptera) UYSAL, M. M.D. — Inst, of Histol. and Embryol., Med. Fac, Hacettepe Sci. Center, ANKARA. Turkey a Collagenogenesis in the umbilical cord. Homo sapiens (Primates) VACEK, Z. MUDr., D.Sc, Prof. — Inst, of Embryol., Charles Univ., Albertov 4. PRAGUE 2, Czechoslovakia a Electron microscopy and histochemistry of the placenta (comparative studies on the sub- microscopic structure, enzyme histochemistry and transport mechanism). Homo sapiens (Primates), (Rodentia; Carnivora; Insectivora; Chicoptera) b Role of primitive streak and tail region in early differentiation of the body (submicroscopic and cytochemical studies in normal and experimental conditions). Rana esculenta (Anura), G -alius domesticus (Aves), Mus rattus (Rodentia) VACQUIER, V. D. Ph.D. — Dept. of Marine Biol., Scripps Inst, of Oceanography, LA JOLLA, Calif. 92037, U.S.A. a Control of enzyme synthesis during larval development, differentiation of the digestive tract. Dendtastet excentricus. Strong ylocenfrotus purpuratus (Echinoidea) b Biochemistry of fertilization with emphasis on the role of beta-l,3-glucanohydrolase and other enzymes. (Echinoidea) c Mechanisms involved in the physical interactions of blastomeres during cleavage. (Echinoidea) VAHS. W. Dr.phil., Prof. — Zool. Inst, der Univ., Weyertal 119, 5 KOLN 41, W.Germany a Quantitative cytochemistry of nucleic acids and proteins during induction and differentia- tion. (Teleostei, Urodela; Aves) b Phase specific gene activities in the eyecup-lens-system of the developing embryo, as revealed by quantitative cytochemical DNA determinations. Salmo irideus (Teleostei), (Urodela; Aves) c Ultrastructure of embryonic cells undergoing induction and differentiation. (Urodela) VAKAET, L. C. A. M.D., Prof. — Lab. of Anat. and Embryol., State Univ. Center, Groenenborgerlaan 171, 2020 ANTWERPEN, Belgium • a Early development. Gallus domesticus, Coturnix japonica (Aves) b Fetal and neonatal endocrinology. Mus musculus albinus (Rodentia) c In vitro culture of blastoderms, normal and after experimental interventions: histo- chemistry: enzymes and mucopolysaccharides. Coturnix japonica, Gallus domesticus (Aves) d Autoradiography of oogenesis. Mus musculus (Rodentia) VALDEZ de MORENO, Mrs. C. L. — Inst, de Biol, Univ. Nac. de Tucuman, Chacabuco 461, S. M. de TUCUMAN. Argentina a Anaerobiosis in oocytes. Bufo arenarum (Anura) VANABLE. J- W., Jr. Ph.D. — Dept. of Biol. Sci., Purdue Univ.. LAFAYETTE. Ind. 47907, U.S.A. a The possibility of selectivity in neuromuscular associations: 1. extrinsic ocular muscles. Xenopus laevis (Anura); 2. muscles of coxa and leg. Periplaneta americana (Blattaciae) VAN ALTEN, P. J. Ph.D., Prof. — Dept. of Anat., Coll. of Med.. Univ. of Illinois, 1853 W.Polk St., P.O.Box 6998, CHICAGO. 111. 60680, U.S.A. a Ontogeny of the immunological mechanism. Gallus domesticus (Aves) b Development of lymphocyte competence to respond to mitogens in v i t ro. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) c Development of antigenic components in the brain. Mesocricetus auratus (Rodentia) d Isotope studies of blood cell formation, especially lymphocytopoiesis. Gallus domesticus (Aves) VANDEBROEK, G. D.Sc, Prof. — Lab. d'Embryol., Inst, de Zool., Univ. de Louvain, 59 rue de Namur, LOUVAIN, Belgium • VAN DETH, J. H. M. G. M.D. — Dept. of Anat. and Histol., Univ. of Adelaide, ADE- LAIDE, S.Austr. 5000, Australia a Teratogenesis by hormones. Gallus domesticus (Aves), Rattus norvegicus (Rodentia) b Hormonal influences on sex determination. Gallus domesticus (Aves) VAN GANSEN (RASMONT), Mrs. P. Prof. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des Chevaux, 1640 RHODE-ST-GENfiSE, Belgium • a Ultrastructure of young ovaries at metamorphosis. Xenopus laevis (Anura) b Development of germ cells from oogonia up till mature oocytes (electron microscopy), especially nucleolar structures at the beginning of meiosis. Xenopus laevis (Anura) 185 VANNINI, E. Dr., Prof. — Inst, of Zool., Fac. of Sci., Univ. of Bologna, Via S.Giacomo 9, 40126 BOLOGNA, Italy a Experimental analysis of the development of the gonad and Bidder's organ. Bufo spec. (Anura) b Inhibition by antibiotics of testosterone-induced sex-reversal in tadpoles. Rana dalmatina (Anura) c General study of the problem of the "sex gradient" in various hermaphroditic animals. (Hydroidea; Tricladidea, Turbellaria; Serpulidae, Polychaeta) VAN STONE, J. M. Ph.D., Prof. — Dept. of Biol., Trinity Coll., HARTFORD, Conn. 06106. U.S.A. a The influence of thyroxine upon the regenerative capacity of the tadpole hindlimb. Rana sylvatica (Anura) VANZULLI, Mrs. A. M.D. — Sect, of Exper. Neurol., Inst, of Neurol., Hosp. de Clinicas, Piso 2, MONTEVIDEO, Uruguay a Sensory evoked potentials in adults, fetus, and newborn. Homo sapiens (Primates) VARMA, H. C. Ph.D., Prof. — Dept. of Anat., Motilal Nehru Med. Coll., Univ. of Allahabad, ALLAHABAD- 1, India a Mechanism of transport of substances across the chorio-amnion. Rattus norvegicus (Rodentia), Oryctolagus cuniculus (Lagomocpha) b Role of endometrium and extraplacental membranes in feto-maternal exchange processes. Homo sapiens (Primates) (with R. BAVEJA) c Histochemistry and cytochemistry of the decidua parietalis and capsularis. Same species as b d Chromosomal abnormalities in abortions and congenital anomalies. Same species as b VARON, S. S. M.D., Prof. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA JOLLA, Calif. 92037, U.S.A. a I n v i t r o differentiation of nerve tissue. Gallus domesticus (Aves) and others b Growth- and differentiation-promoting agents from the submaxillary gland. Mus musculus (Rodentia) VASSE, J. Lic.es Sci. — Serv. d'Embryol. Exper., Inst. Pasteur, 20 rue des Moulins, 95 SANNOIS, France a Relationship between the somites and the primordia of the forelimbs. Testudo spec. (Chelonia) , Lacerta spec. (Lacertilia) b RNA, DNA, and protein synthesis of epidermal and mesodermal cells in the limb buds. (Chelonia), Anguis [ragilis, Lacerta viridis (Lacertilia) (with A. RAYNAUD) c Effects of x-rays on embryonic development. Lacerta viridis (Lacertilia) (with CI. PIEAU) d Effects of metabolic inhibitors on embryonic development. (Reptilia) VASSETZKY, S. G. Cand.biol.sci. — Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., Vavilov St. 26, MOSCOW 117133, U.S.S.R. a Dynamics of meiosis and mitosis in eggs. Osrrea gigas (Lamellibranchia) , Strongy- locentrotus drobachiensis, S. intermedius (Echinoidea) b Production of diploid gynogenesis by means of heat treatment of oocytes at the first maturation division and of chemical treatment (with nitrogen mustard) of sperm. Acipensec guldenstadti, A. stellatus (Chondrostei) VAUGHN, J. E. Ph.D. — Div. of Neurosci., City of Hope Med. Center, 1500 E. Duarte Road. DUARTE, Calif. 91010, U.S.A. a Development of neuroglial cells in the central nervous system (electron microscopy and autoradiography). Rattus domesticus (Rodentia) b Electron microscopy of spinal cord development. Rattus domesticus, Mus musculus (Roden- tia) VENEZIANO, P. P. Ph.D., Prof. — Dept. of Biol., Wilbur Wright Coll., 3400 N.Austin Ave., CHICAGO, 111. 60634, U.S.A. — Dept. of Histol., Loyola Dental School, CHICAGO, 111., U.S.A. a The effect of artificial sweetners on growth and development. Gallus domesticus (Aves) b The effect of antipituitary sera on development. Same species as a c The effect of low intensity magnetic fields on the developing nervous system of 24, 36, and 48 hour blastoderms. Same species as a VENZKE, W. G. Ph.D., Prof. — Dept. of Vet. Anat., Coll. of Vet. Med., Ohio State Univ., 1900 Coffey Rd., COLUMBUS, Ohio 43210, U.S.A. a Morphogenesis and physiology of ultimobranchial gland, pineal gland, and blood (Aves) b Experimental morphology of pineal gland. (Bovidae, Artiodactyla) VERBICKY, M. Sh. Cand.med.sci. — Inst, of Human Morphol., Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. a Immunological relationships between mother and foetus. Rattus norvegicus (Rodentia), Papio hamadrys, Macaca mulatta, Homo sapiens (Primates) b Humoral interactions between analogous organs (reticuloendothelial and leucopoietic system) of mother and foetus. Rattus norvegicus (Rodentia), Macaca mulatta (Primates) VERDONK, N. H. Ph.D. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands 186 a Cell-lineage and head-pattern in normal and Li-treated embryos. Lymnaea stagnalis (Gastropoda) b Determination of bilateral symmetry in the head region. Same species as a c Germinal localization in eggs. Dentalium spec. (Scaphopoda) ; Patella spec. (Gastropoda) d Development of isolated blastomeres. Bith'ynia tentaculata (Gastropoda) VEREISKAYA, Miss V. N. Cand.biol.sci. — Lab. of Developm. Cytogenet, Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R.. Vavilov St. 26, MOSCOW 117133, U.S.S.R. _ . ._ .. . a Cytogenetics of diploid and polyploid strains. Bombyx mon, B. mandarina (Lepidoptera) (with B. L. ASTAUROV and V. A. STRUNNIKOV) b Electron microscopy of normal and abnormal spermatogenesis of diploid and polyploid strains. Same species as a (with L. V. DANILOVA) VERHOFSTAD, A. A. J. Med.drs. — Dept. of Anat. and Embryol., Univ. of Nijmegen, Geert Grooteplein N. 21, NIJMEGEN, Netherlands a Differentiation of epinephrine- and nor-epinephrine-containing cells in the adrenal medulla, (histochemistry). Mus rattus (Rodentia) n„„w„ „ VERNET, G. Dr.Biol. — Lab. de Biol. Cell., Fac. des Sci., B.P. 347, 51 REIMS, France a Synthesis of porphyrins during development. Lineus viridis (Nemertea) b Synthesis of porphyrins during anterior regeneration. Lineus ruber, L. lacteus (Nemertea) c Fine structure of photoreceptors during anterior regeneration. Lineus ruber (Nemertea) VERNET (CORNUBERT), Mrs. G. M. Dr.es Sci., Prof. — Lab. de Physiol, des Inverte- bres, Univ. des Sci. et Techn. du Languedoc, 34 MONTPELLIER, France a Regeneration, development and growth. Pachygcapsus marmoratus (Decapoda, Crustacea) VERRUSIO A. C. Ph.D. — Dept. of Anat., Div. of Biol. Sci., Univ. of Chicago, 1025 East 57th St., CHICAGO, 111. 60637, U.S.A. — American Dental Assoc, 211 E. Chicago Ave., CHICAGO, 111. 60611, U.S.A. a Cellular events during fusion of the palatal processes, especially the factor (s) causing epithelial breakdown. (Mammalia) b A cytoplasmic factor affecting cleft palate production; biochemistry of a strain difference, perhaps due to a mitochondrial mutant. Mus musculus (Rodentia) VERWOERD, C. D. A. M.D. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., Netherlands a Early differentiation of the endoderm. Mus musculus (Rodentia) (with C. G. van OOS- TROM and A. A. SCHOUTEN) „»„„ ,„ VIANEY-LIAUD, M. D.E.A. — Lab. d'Evol., Fac. des Sci., 105 Bd. Raspail, 75 PARIS Vie, VIJVERBERG, A. J. Drs. — Zool. Lab., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Nether- lands a Proliferation (mitoses) and DNA synthesis in imaginal discs (autoradiography). Calltphora erythtocephala. (Diptera) b Influence of X-irradiation and hormones (ecdysteron) on morphogenesis of imaginal discs. Calliphora erythtocephala (Diptera) VILIMKOVA (HABROVA), Mrs. V. RNDr. — Dept. of Exper. Zool., Charles Univ., Vinicna 7, PRAHA 2, Czechoslovakia a Nucleic acids and subcellular particles in oogenesis and early development. (Amphibia) (with J. NEDVIDEK) „,,„„, ,„ VILLA, Miss L. D.Sc. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18, 90123 PALERMO, Italy a Ultrastructural morphology of oocytes. Chaetopterus (Polychaeta) b Electron microscopy of egg development. Sternaspis spec. (Polychaeta) VINCENT, W. S. Ph.D., Prof. — Dept. of Biol. Sci., Univ. of Delaware, NEWARK, Del. 19711, U.S.A. • a Control of ribosome formation in early oocytes; nucleolar chemistry of oocytes. Mytilus edulis, Spisula solidissima (Lamellibranchia), Asterias forbesii ( Asteroidea) , Arbacia punctulata (Echinoidea) b Analysis of ribosomal gene amplification in oocyte development with respect to uni- and multinucleolate forms. Mytilus edulis, Spisula solidissima (Lamellibranchia), Asterias forbesii (Asteroidea), Arbacia punctulata (Echinoidea), Roccus saxatilis, Fundulus heteroclitus (Teleostei) VISCUSO, Miss R. Dr. — 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 CATANIA, Italy a Physiological and experimental embryology of the earliest developmental stages. Eyprepocnemis plorans (Orthoptera) VISSCHER (NEUMANN), Mrs. S. Ph.D.. Prof. — Dept. of Zool-Entomol., Montana State Univ., BOZEMAN, Mont. 59715, U.S.A. a Maternal environmental inter-relationships with embryonic developmental rate. Aulocara elliotti (Orthoptera) b Embryonic neuroendocrine functions. Aulocara elliotti (Orthoptera) 187 VITTORELLI, Miss M. L. Dr.Biol.Sci. — 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, Italy a Fusion of blastomeres. Paracentrotus lividus (Echinoidea) VIVIEN, J. H. Dr.es Sci., Prof. — Lab. de Zool. et d'Embryol. Exp., Univ. de Strasbourg, 12 rue de l'Universite, 67 STRASBOURG, France VOGE Mrs M. Ph.D., Prof. — Dept. of Med. Microbiol, and Immunol., Sch. of Med., Univ. of California, LOS ANGELES, Calif. 90024, U.S.A. VOLLMAR, H. Dr.rer.nat. — Biol. Inst. I (Zool.) der Univ., Katharinenstr. 20, 78 FREI- BURG. W.Germany a Embryonic determination. Acheta domesticus (Orthoptera) b Morphogenetic movements during early embryogenesis. Same species as a VOLLRATH, L. Priv.Doz., Dr.med. — Dept. Anat., King's College, Univ. of London, Strand, LONDON WC2R 2LS, England a Development of the intestine, especially differentiation of cell organelles (histology, histo- chemistry, electron microscopy) . Rattus norvegicus (Rodentia) VOLPE, E. P. Ph.D., Prof. — Dept. of Biol., Tulane Univ., NEW ORLEANS, La. 70118, U.S.A. t * a Neural crest homotransplantation and its relation to the phenomena of immunity and tolerance. Rana pipiens (Anura) b Blood cell chimerism in parabiotic animals, as revealed in chromosome preparations of cultured leucocytes. Same species as a c Histocompatibility studies in animals produced by nuclear transplantation. Same species as a d Role of the thymus in the development and maintenance of immunity. Same species as a VOORHEES, F. R. Ph.D. — Dept. of Biol., Knox College, GALESBURG, 111. 61401, U.S.A. a Development of the reproductive system. Aedes stimulans and other spp. (Diptera) VREEZEN, Miss W. J. Drs. — Dept. of Genet., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Netherlands a Selection on asymmetrical development of bristle patterns. Drosophila melanogastet (Diptera) ' VRIES, O. M. H. de Drs. — Lab. of Bot., Rijksuniversiteit Groningen, Kerklaan 30, Postbus 14, HAREN (Gr.), Netherlands a Biochemistry of wall formation, using extracts and protoplasts. Schizophyllum commune Basidiomycetae, Fungi) VYAZOV O. E. Dr.med.sci.. Prof. — Lab. of Embryol., Inst, of Human Morphol.. Acad, of Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW 125315, U.S.S.R. • a Development of tissue antigens during eye lens, retina, and kidney development. Gallus domesticus (Aves), Mus musculus (Rodentia) b Humoral interconnections between analogous organs (brain, lung, reticulo-endothelial and leucopoietic system) of mother & foetus. Rattus norvegicus (Rodentia) VYSE. E. R. Ph.D. — Developm. Biol. Lab. and Center for Pathobiol.. Univ. of California, IRVINE, Calif. 92664. U.S.A. a Selection and biochemical analysis of auxotrophic mutants. Drosophila melanogastet (Diptera) WADA. S. Dr.rer.nat. — Zool. Inst., Univ. Diisseldorf, Mettmanner Str. 16-18, 4 DUSSEL- DORF, W.Germany a Morphogenesis of the compound eyes. (Arthropoda) WADDINGTON, C. H. D.Sc, Prof. — Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., EDINBURGH EH9 3JN, Scotland. U.K. • a Study of certain features of developing embryos by electron microscopy. (Diptera; Amphibia) (with J. JACOB and M. M. PERRY) b Development of imaginal buds. Drosophila spec. (Diptera) (with E. ROBERTSON) c Ultrastructural changes during growth. Micrasterias thomasiana (Desmidiaceae) (with G. G SELMAN) d Electron microscopy of mutants. Same species as b (with M. M. PERRY) e Computer simulation of biological patterns (with R. COWE) WADLEY, G. W. B.S. — Lab. of Radiat. Ecol., Coll. of Fish., Univ. of Washington, 108 Fisheries Center. SEATTLE. Wash. 98105, U.S.A. a Effects of ionizing irradiation on different stages of embryos developing at different temperatures. Oncorhynchus tshawytscha, Salmo gairdnerii (Teleostei) WAELSCH. Mrs. S. GLUECKSOHN Ph.D., Prof. — Dept. of Genet., Albert Einstein Coll. of Med., Yeshiva Univ., Eastchester Rd. & Morris Park Ave., NEW YORK, Bronx, NY. 10461, U.S.A. • a Developmental physiology. Mus musculus (Rodentia) b Developmental genetics. Mus musculus (Rodentia) c Developmental pathology. Mus musculus (Rodentia) WAIDYASEKERA. P. L. D. Ph.D. — Dept. of Biol. Sci.. Fac. of Sci., Vidyodaya Univ., Gangodawila, NUGEGODA, Ceylon 188 a Morphogenetic changes due to various bacterial types used as food during the subcultures. Acanthamoeba spec. (Rhizopoda) b Encystment pattern. Colpoda spec. (Ciliata) WAINWRIGHT, Mrs. L. K. Ph.D., Prof. — Biochem. Dept, Med. School, Dalhousie Univ., Sir Charles Tupper Bldg., HALIFAX, N.S., Canada a Regulation of hemoglobin synthesis in blood islands of blastodiscs: 1. role of mitochondrial protein synthesis; 2. role of egg yolk lipids. Gallus domesticus (Aves) b Hemoglobin synthesis in cell aggregates formed from dissociated blastodiscs. Gallus domesticus (Aves) c Effects of pesticides and organic mercurials on the "model" system of explanted blastodiscs. Gallus domesticus (Aves) WAINWRIGHT, S. D. Ph.D., Prof. — Biochem. Dept., Med. School, Dalhousie Univ., Sir Charles Tupper Bldg., HALIFAX, N.S., Canada a Regulation of hemoglobin synthesis in blood islands of blastodiscs: 1. role of mitochondrial protein synthesis; 2. role of egg yolk lipids; 3. regulation by transfer RNA; 4. methylation of transfer RNA. Gallus domesticus (Aves) b Hemoglobin synthesis in cell aggregates formed from dissociated blastodiscs. Gallus domesticus (Aves) c Effects of pesticides and organic mercurials on the "model" system of explanted blastodiscs. Gallus domesticus (Aves) WAKAHARA, M. M.Sc. — Zool. Inst., Fac. of Sci., Hokkaido Univ., North 10, West 8, SAPPORO, 060 Japan a Morphogenesis of the pineal and subcommissural organs. Xenopus laevis (Anura) WAL, U. P. v.d. M.Sc. — Zool. Lab., State Univ. of Utrecht, Janskerkhof 3, UTRECHT, Netherlands a Localization of protein synthesis during the first cleavages by electron microscope auto- radiography. Lymnaea stagnalis (Gastropoda) b Electron microscopy of chemical breakdown of proteins in correlation with cytological structure of degenerating yolk granules. Same species as a WALKER, B. E. M.D., Ph.D., Prof. — Dept. of Anat., Michigan State Univ., Giltner Hall, EAST LANSING, Mich. 48823, U.S.A. a Teratology, experiments on cleft palate, the action of different chemicals. Oryctolagus cuniculus (Lagomorpha), Mus musculus (Rodentia) WALKER, D. G. Ph.D., D.Sc, Prof. — Dept. of Biochem., Univ. of Birmingham, Edgbaston, BIRMINGHAM B15 2TJ, England a Development of enzymes and enzyme systems in foetal and neonatal animals, with special reference to carbohydrate metabolism. Rattus spec. (Rodentia) and other spp. (Mammalia) WALLACE, H. Ph.D. — Dept. of Genet., Univ. of Birmingham, Edgbaston, P.O.Box 363, BIRMINGHAM 15, England a Nucleolar metabolism during development and gametogenesis. Xenopus laevis (Anura) b Limb regeneration. Ambystoma spec. (Uvodela) c Developmental physiology. (Ascidiacea) WALLACE, R. A. Ph.D. — Biol. Div., Oak Ridge Natl. Lab., P.O.Box Y, OAK RIDGE, Tenn. 37830, U.S.A. • a Comparative biochemistry of yolk protein synthesis, transport and composition. (Crustacea; Pisces; Amphibia; Aves) WALLS, J. B. M.B., Ch.B. — Dept. of Anat., School of Med., Thoresby Place, LEEDS LS2 9NL, England a Correlation of mitotic activity with development and maintenance of epithelia, especially cellular orientation in stratified squamous epithelia. (Rodentia) WARKANY, J. M.D., Prof. — Children's Hosp. Res. Found., Div. of Teratol., Elland and Bethesda Aves., CINCINNATI, Ohio 45229, U.S.A. WARREN, Ch. O. Ph.D., Prof. — Dept. of Biol., Southwestern at Memphis, 2000 North Parkway, MEMPHIS, Tenn. 38112, U.S.A. a Regulatory role of mitochondria during growth and development. Achlya ambisexualis (Lepidopteca) b Hormonal regulation of sexual reproduction. Same species as a WARTENBERG, H. Dr.med., Prof. — Anat. Inst, der Univ., Pestalozzistr. 20, CH-4056 BASEL, Switzerland a Electron microscopy of developmental stages of gonads including male and female germ cells. Homo sapiens (Primates) b Fine structure of postnatal development of circumventricular organs (area postrema, subfornical organ, pineal organ) of the brain. Felis domestica (Carnivora), Macaca mulatta (Primates) WARTIOVAARA, J. J. M.D. — Lab. of Exper. Embryol., III. Dept. of Pathol., Univ. of Helsinki, Haartmaninkatu 3, HELSINKI 29, Finland • a RNA synthesis during development. Strong ylocentrotus pucpuratus (Echinoidea) b Electron microscopy of cytodifferentiation during kidney tubulogenesis in vitro. Mus musculus (Rodentia) (with L. O. SAXfiN) 189 c Freeze-etching electron microscopy of ribosome membrane association in BHK (baby hamster kidney) cell line. (Rodentia) WASSERMAN de CUNIO, Mrs. R. Biochem. — Inst, de Biol., Univ. Nac. de Tucuman, Chacabuco 461, S. M. de TUCUMAN, Argentina a Oviducal factors involved in fertilization. Bufo arenarum (Anura) WATANABE, H. Ph.D. — Inst, of Zool., Fac. of Sci., Tokyo Kyoiku Univ., Otsuka 3-29-1, Bunkyo-ku, TOKYO, Japan a Recognition of specificity in compound forms. Botryllus primigenus, Botrylloides violaceum, Clavelina conccescens (Ascidiacea) (with K. TANAKA) b Asexual reproduction of compound forms. Perophora japonica, Polycitor mutabilts, Botryllus primigenus, Metandrocarpa tayloci (Ascidiacea) c Tissue culture. Perophora japonica, Polycitor mutabilis, Botryllus primigenus (Ascidiacea) WATANABE, K. Ph.D., Prof. — Dept. of Biol., Sch. of Dent., Tsurumi Women's Univ., 84 Tsurumi-cho, Tsurumi-ku, YOKOHAMA, Japan a Fibrillogenesis of connective tissue fibres. (Teleostei), Rana catesbeiana, R. japonica, Bufo vulgaris (Anura), Mus musculus (Rodentia), Homo sapiens (Primates) b Electron microscopy of metamorphosis. (Ascidiacea), Rana japonica, R. catesbeiana, Bufo vulgaris (Anura) WATANABE, K. M.Sc. — Res. Inst, for Infectious Diseases, Univ. of Osaka, Senri, OSAKA, Japan a Cell differentiation and virus infection. Gallus gallus (Aves) WATANABE, T. Dr. — Dept. of Biol., Fac. of Sci., Konan Univ., Okamoto, Motoyama- cho, Higashinada-ku, KOBE, Japan WATERMAN, A. J. Ph.D. — Extramural Programs, Natl. Inst, of Child Health and Human Developm., Natl. Inst, of Health, BETHESDA, Md. 20014, U.S.A. • a Development of structure and function of the thyroid, hypophysis and neuro-secretory system, (higher Verreferara,) b Function of the thyroid gland. Eptatretus stouti (Myxinoidea, Cyclostomata) c Limb regeneration and prolactin. Diemyctylus viridescens (Urodela) WATSON (BRYANT), Mrs. M. B.S. — Dept. of Zool., Div. of Biol. Sci., Univ. of Georgia, Barrow Hall, ATHENS, Ga. 30601, U.S.A. a Cytochemistry and ultrastructure of spermiogenesis, esp. aggregation of ribosomes and their envelopment into a solid membrane bound group which is later discarded along with cytoplasmic debris. Rehnia spinosa (Orthopteca) b Cytochemistry, autoradiography, and ultrastructure of oogenesis. Rhynchosciara spec. (Diptera) c Ultrastructure of the dormant and post-dormant root tip. Allium cepa (Liliaceae) WATTERSON, R. L. Ph.D., Prof. — Dept. of Zool., Univ. of Illinois, URBANA, 111. 61801, U.S.A. • a Effects of hypophysectomy on development of musculus complexus, long bones, and fat bodies. Gallus domesticus, Anas boschas (Aves) b Correction of defects in pituitaryless embryos with anterior pituitary grafts and injections of trophic hormones. Same species as a c Sources and mechanisms of development of lumbosacral level of neural tube with emphasis on development of myeloschisis. Gallus domesticus (Aves) d Effects of aminoguanidine sulfate on development of liver, mesonephros, metanephros, and heart in vivo and in vitro. Same species as c WATTS, G. T. Ch.M., F.R.C.S. — Dept. of Surg., Queen Elizabeth Hosp., Edgbaston, BIRMINGHAM 15, England a Origin of cells in healing wounds b Relation of regeneration to reactions of immunity c Nature of wound healing in relation to components involved and responsible (mucopoly- saccharides and collagen) d Manganese in relation to wound healing WAYMOUTH, Miss C. Ph.D. — The Jackson Lab., BAR HARBOR, Me. 04609, U.S.A. a Development of Na-K activated ATPase in kidney and lung, in vivo and in vitro. Mus musculus (Rodentia) WEAKLY (SHAW), Mrs. B. Ph.D. — Dept. of Anat., Univ. of Dundee, DUNDEE DD1 4HN, Scotland, U.K. a Cytochemical and autoradiographic investigations of developing germ cells on the electron microscopic level. Mesocricetus auratus (Rodentia) WEBER, R. Ph.D., Prof. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8, CH-3012 BERN, Switzerland • a Mechanisms of tissue involution during metamorphosis. Xenopus laevis (Anura) b Thyroxine and RNA synthesis in tadpole tissues. Xenopus laevis (Anura) (with G. RYF- FEL and U. SCHIBLER) c Effects of inhibitors of protein synthesis on metamorphosis. Xenopus laevis (Anura) (with H. KLEINLOGEL) d Comparative biochemistry and ultrastructure of mitochondria in embryonic systems. Xenopus laevis (Anura) (with A. KISTLER) 190 e M.-DNA in relation to biogenesis of mitochondria in liver. Mus musculus (Rodentia) WEBSTER, G. C. Ph.D. — Sch. of Biol. Sci., Univ. of Sussex, Falmer, BRIGHTON BN1 9QG, England a Regeneration, regulation, and pattern formation. Hydra spec. (Hydrozoa) b Morphogenesis and pattern formation in limbs. Blattella spec. (Blattariae) WECHSLER, W. Dr.med., Prof. — Max-Planck-Inst. fur Hirnforsch., Abt. fur Allgem. Neurol., Ostmerheimer Str. 200, 5 KOLN 91 (Merheim), W.Germany a Development, especially of the nervous system. Mus musculus, Rattus spec. (Rodentia) b Experimental induction of tumors and malformations during development. Same species as a WEGENER, G. Dr.rer.nat. — Zool. Inst, der Univ., Berlinerstr. 15, 6900 HEIDELBERG, W.Germany a Protein synthesis during cleavage, germ band, and organogenesis. Acheta domestica (Oc- thoptera) b Organisation of energy metabolism and selective synthesis of cytoplasmic proteins in the life cycle. Physarum polycephalum (Eumycetozoina) WeGLARSKA, Miss B. D.Sc. — Zool. Dept., Jagiellonian Univ., ul.Krupnicza 50, KRA- KOW, Poland a Histochemical studies on development. Melasoma populi (Coleoptera) WEGMANN, R. Dr.en Med., Dr.es Sci., Prof. — Inst. d'Histochim. Med., Fac. de Med., Univ. de Paris, 45 rue des Saints Peres, 75 PARIS-6e, France a Enzymology and metabolic pathways of morphogenesis. (Mammalia) b Development of the ovary. (Mammalia) c Maturation of oogonia. (Mammalia) WEGNEZ, M. Lic.es Sci. — Lab. de Biochim., Univ. de Liege, 17 Place Delcour, B-4000 LIEGE, Belgium a Mecanismes biochimiques de l'oogenese. Xenopus laevis (Anura) WEIDELI, H. J. Dipl.Phil.II — Zool. Vergl. Anat. Inst., Univ. Zurich, Kunstlergasse 16, CH-8006 ZURICH, Switzerland WEIDMAN, Th. A. Ph.D. — Dept. of Anat., Coll. of Med., Univ. of Vermont, Given Med. Bldg., BURLINGTON, Vt. 05401, U.S.A. a Ultrastructure of developing retina and correlation with function as indicated by electro- retinography. Rana spec. (Anura), Gallus domesticus (Aves), Rattus norvegicus, Citellus spec. (Rodentia) b Ultrastructure of ocular structures other than retina and correlation with functional awakening. Same species as a c Ultrastructural aspects of neuro-ophthalmic development; formation of optic nerve, chiasm, lateral geniculate bodies, optic radiations and occipital cortex (where appropriate). Same species as a WEIR, Miss B. J. Ph.D. — Wellcome Inst, of Comp. Physiol., Zool. Soc. of London, Regent's Park, LONDON NW1 4RY, England a Resorption of all foetuses except two during 5th to 10th week of gestation. Lagostomus maximus (Chine hill idae, Rodentia) WEIRICH, G. Dr.rer.nat. — Zoecon Corp., 975 California Ave., PALO ALTO, Calif. 94304, U.S.A. a Dynamics of uptake and elimination of juvenile hormone after topical application, a comparative study. Pyrrhocoris apterus (Heteroptera), Dermestes maculatus (Coleoptera) , Musca domestica (Diptera), Galleria mellonella, Manduca sexta (Lepidoptera) b Distribution and metabolism of juvenile hormone after different modes of application; localization and specificity of some of the enzymes involved. Same species as a WEIS (SHULMAN), Mrs. J. S. Ph.D., Prof. — Dept. of Zool., Rutgers Univ., 195 University Ave., NEWARK, N.J. 07102, U.S.A. a Effects of nerve growth factor and of pesticides on nervous system development. Rana catesbeiana (Anura), Ambystoma maculatum (Urodela), Brachydanio rerio (Teleostei) b Experimental modification of regenerative response in limbs and fins. Same species as a WEIS, P. D.D.S., Prof. — Dept. of Anat., Coll. of Med. and Dent., 100 Bergen St., NEWARK, N.J. 07103, U.S.A. a Development of the nervous system in the presence of certain insecticides. Brachydanio rerio (Teleostei) WEISHEIT (SCHULTZ), Mrs. P. Ph.D., Prof. — Biol. Dept., Univ. of Colorado, 1100 E. 14th St., DENVER, Colo. 80202, U.S.A. WEISS, L. Sc.D., M.D., Ph.D. — Dept. of Exper. Pathol., Roswell Park Mem. Inst., 666 Elm St., BUFFALO, N.Y. 14203, U.S.A. • a Biophysics of cell interactions WEISS, P. A. Ph.D., D.Sc, Prof.(Emer.) — Lab. of Developm. Biol., Rockefeller Univ., NEW YORK, N.Y. 10021, U.S.A. • WEISS, R. A. B.Sc. — Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WC1 6BT, England a Teratoma cells in vitro. (Mammalia) b Social behavior of cells in vitro. (Aves; Mammalia) 191 WELANDER, A. D. Ph.D., Prof. — Lab. of Radiat. Ecol., Coll. of Fish., Univ. of Washing- ton, 108 Fisheries Center, SEATTLE, Wash. 98105, U.S.A. a Effects of graded sublethal doses of X-rays on several different stages of the embryo. Oncochynchus kisutch, O. tshawytscha, Salmo gairdnerii (Teleostei) b Experimental embryology. Salmo gairdnerii, Oncorhynchus kisutch, O. tshawytscha (Teleostei) c Effects of low, acute doses of X-rays on early development. Oncorhynchus spec, Salmo spec. (Teleostei) d Effects of ionizing irradiation on different stages of embryos developing at different temperatures. Oncorhynchus tshawytscha, Salmo gairdnerii (Teleostei) WELLAUER, P. Lic.phil.nat. — Div. of Cell and Developm. Biol., Zool. Inst., Univ. of Bern, Sahlistr. 8, CH-3012 BERN, Switzerland a M-DNA in relation to biogenesis of mitochondria in liver. Mus musculus (Rodentia) (with R. WEBER) WELLS, L. J. Ph.D., Prof. — Dept. of Anat., Sch. of Med., Univ. of Minnesota, MINNEA- POLIS, Minn. 55455, U.S.A. • WENDER, M. B. M.D., Prof. — Inst, of Neurol, and Sensory Organs, Med. Acad., Przybyszewskiego St. 49, POZNAfi, Poland a The chemical composition and enzyme activity of developing nervous tissue with special reference to the period of myelination. (Mammalia) b The influence of ionizing radiation on the developing nervous system. (Mammalia) c Histoenzymatic architectonics of the developing nervous system. (Mammalia) WENGER, B. S. Ph.D., Prof. — Dept. of Anat., Coll. of Med., Univ. of Saskatchewan, SASKATOON, Sask., Canada • a Appearance of specific brain antigens during development (microcomplement fixation). G alius domesticus (Aves) b Morphology and biochemistry of the mode of action of the crooked neck dwarf gene. Same species as a WENGER, Mrs. E. L. Ph.D. — Dept. of Anat., Coll. of Med.( Univ. of Saskatchewan, SASKATOON, Sask., Canada a Development and differentiation of the optic tectum and optic nuclei after early surgical removal of portions of the optic cup. Gallus domesticus (Aves) b Development of olfactory system in the embryo. Same species as a c Tissue culture of the early neural tube and brain. Same species as a WENSING, C. J. G. D.V.M., Ph.D. — Vet. Anat. and Embryol. Inst., Univ. of Utrecht, Bekkerstr. 141, UTRECHT, Netherlands a Mechanism of testicular descent (histology, biochemistry, tissue culture). (Mammalia) b Development of heart anomalies, especially hypoplasia of right and left heart. (Mammalia) WENT, D. F. — Zool. Inst. I, Univ. Wurzburg, Rontgenring 10, 87 WURZBURG, W. Germany a Oogenesis in vitro. Pimpla turionellae (Ichneumonidae, Hymenopteta) WERNER, Y. L. Ph.D. — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSALEM, Israel a Normal development, embryonic and postnatal, of the vertebral column. (Gekkonoidea, Lacertilia) b Tail regeneration, especially skeleton and skin; bifurcate tails. (Lacertilia) c Temperature effects during embryogenesis on the number of vertebrae. Hemidactylus turcicus, Stenodactylus stenodactylus (Gekkonoidea, Lacertilia) d Temperature dependence of the duration of embryonic development. (Gekkonoidea, Lacer- tilia) WESSEL (HARDERS), Mrs. M. B.S. — Dept. of Zool.-Entomol., Montana State Univ., BOZEMAN, Mont. 59715, U.S.A. a Maternal influences on constituents in the egg from a panoistic ovary. Aulocara elliotti (Acrididae, Orthoptera) WESSELLS, N. K. Dr. — Dept. of Biol. Sci., Stanford Univ., STANFORD, Calif. 943C5, U.S.A. • WESSELS, J. G. H. Dr., Prof. — Lab. of Bot., Rijksuniversiteit Groningen, Kerkl?.an 30, Postbus 14, HAREN (Gr.), Netherlands a Biochemistry and ultrastructure of sexual morphogenesis, especially in relation to enzyme regulation. Schizophyllum commune, (Basidiomycetae, Fungi) b Biochemistry and ultrastructure of hyphae, synthesis and degradation of wall constituents. (Fungi) WESTERGAARD, O. Ph.D. — Dept. of Biochem. B, Univ. of Copenhagen, 30 Juliane Maries Vej, 2100 COPENHAGEN 0, Denmark a DNA-polymerase activity in correlation to cell cycle and to circumstances where DNA is damaged (UV, X-ray or treatment with chemicals). Tetrahymena pyriformis (Ciliata) WESTERMAN, R. A. Ph.D. — Dept. of Physiol., Monash Univ., CLAYTON, Vict. 3168, Australia a Histological and ultrastructural aspects of regenerating nerve fibres, particularly in the olfactory system. Carassius carassius (Teleostei) 192 WESTON, J. A. Ph.D. — Dept. of Biol., Univ. of Oregon, EUGENE, Ore. 97403, U.S.A. • a The migration and differentiation of neural crest cells. Gallus domesticus (Aves), Mus musculus (Rodentia) b The cell surface as an effector of cell specificity. Gallus domesticus (Aves) c The action of morphogenetic agents on embryonic cell behavior in vivo and in vitro. Gallus domesticus (Aves) WEYGOLDT, P. Dr. — Biol. Inst. I (Zool.) der Univ., Katharinenstr. 20, 78 FREIBURG, W.Germany a General and comparative embryology. (Pseudoscorpionidea and other Arachnida) b Embryology. Tarantula marginemaculata (Amblypygidae, Arachnida) c Embryology. Euphilomedes ptoducta (Ostracoda, Crustacea) WHALEY, W. G. Ph.D., Prof. — Cell Res. Inst., B.L.220, Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. WHARTON, L. R., Jr. M.D. — Dept. of Gynecol, and Obstet., Sch. of Med., Johns Hopkins Hosp., BALTIMORE, Md. 21205, U.S.A. WHITE, Miss J. B.A. — Dept. of Developm. Biol., Marischal Coll., Univ. of Aberdeen, ABERDEEN AB9 IAS, Scotland, U.K. a Effects of hydrocortisone on embryonic tissue cells grown in vitro. Gallus gallus (Aves) b Dissociation of embryonic tissues and viability of cultured cells. Same species as a WHITELEY, A. H. Ph.D., Prof. — Dept. of Zool., Univ. of Washington, SEATLLE, Wash. 98105, U.S.A. • WHITT, G. S. Ph.D. — Dept. of Zool., Univ. of Illinois, URBANA, 111. 61801, U.S.A. a Developmental genetics: 1. expression of differential gene function during early embryo- genesis and cytodifferentiation with an emphasis on those genes responsible for isozymes; 2. correlation of lactate dehydrogenase gene homology with the specificity of the gene activating mechanisms during development; 3. genetical, physical, and chemical analysis of the lactate dehydrogenase isozymes unique to the differentiated nervous system; 4. biochemical genetics of isozymes, especially lactate dehydrogenase; 5. asynchronous allele activation during embryogenesis of interspecific and intergeneric hybrids. Micropterus dolomieui, M. salmoides and other spp. (Centracchidae, Teleostei) b Epigenetic and genetic control of protein synthesis during cytodifferentiation with emphasis on the post-translational control of gene product (especially lactate dehydrogenase isozymes) , assembly and function. (Teleostei and other Vertebrata) WHITTAKER, J. R. Ph.D. — The Wistar Inst, of Anat. and Biol., 36th St. at Spruce, PHILADELPHIA, Pa. 19104, U.S.A. • a Melanin biosynthesis and cell regulatory mechanisms in differentiating pigment cells. Ciona intestinalis (Ascidiacea) , Gallus domesticus (Aves) b Localization and segregation of cytoplasmic information concerned with specific enzyme differentiations in embryonic development: acetylcholinesterase, tyrosinase, alkaline phosphatase. Ciona intestinalis, Styela partita, Molgula manhattensis (Ascidiacea) WHITTEN, W. K. D.Sc, B.V.Sc. — The Jackson Lab., BAR HARBOR, Me. 04609, U.S.A. a Preimplantation stages of development in vivo and in vitro. Mas musculus (Rodentia) WHITTINGHAM, D. G Ph.D. — Marshall Lab., Dept. of Physiol., Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3EG, England a Nutrient requirements for growth and development of eggs in vi t r o. Mus musculus, Mesocricetus auratus (Rodentia) , Mustela putorius furo (Carnivora), Ovis aries (Artio- dactyla) b Storage of embryos at low temperature. Mus musculus (Rodentia) WIDERSTEN, B. Fil.lic. — Zool. Inst., Univ. of Uppsala, Box 561, S-75122 UPPSALA 1, Sweden a Larval development. (Scyphozoa) WIDNELL, C. C. Ph.D., Prof. — Dept. of Anat. and Cell Biol., School of Med., Univ. of Pittsburgh, PITTSBURGH, Pa. 15213, U.S.A. a Changes in endoplasmic reticulum membrane enzymes during development and aging. Rattus norvegicus (Rodentia) WIERTZ (HOESSELS) , Mrs. E. L. M. J. Ph.D. — Vet. Anat. and Embryol. Inst., Univ. of Utrecht, Bekkerstr. 141, UTRECHT, Netherlands a Effect of penicillin and streptomycin on early development. Gallus domesticus (Aves) b Neural induction and pattern formation of rhombencephalic and anterior spinal cord region. Same species as a WIEST, Miss L. Dr.phil. — Inst, fur Krebsforsch., Univ. Wien, Borschkegasse 8a, Postfach 72, A- 1090 WIEN, Austria a Endocrine control in liver regeneration. Rattus norvegicus, Mus musculus (Rodentia) WIGGLESWORTH, Sir V. B. Dr., Prof.(Emer.) — Dept. of Zool., Univ. of Cambridge, Downing St., CAMBRIDGE, England • a Mode of action of growth hormones. Rhodnius prolixus (Triatomidae, Hemiptera) 193 WILCOX, M. Ph.D. — Lab. of Molec. Biol., Med. Res. Council, Hills Rd., CAMBRIDGE CB2 2QH, England a Mechanisms underlying heterocyst spacing. Anabaena cyhndnca (Cyanopnyceae) WILD, A. E. Ph.D. — Dept. of Zool., Univ. of Southampton, SOUTHAMPTON S09 5NH, England a Protein transmission across foetal membranes. Oryctolagus cuniculus (Lagomorpha) WILDE, A. G. de M.D., Ph.D., Prof. — Dept. of Anat. and Embryol., State Univ. of Groningen, Oostersingel 69, GRONINGEN, Netherlands a Development of computer programs for the reconstruction, by incremental plotter, of embryonic organ structure b Morphogenesis of the palatal and nose regions, studied by means of reconstructions. Mus musculus, Rattus norvegicus (Rodentia), Homo sapiens (Primates) WILDE C E Tr Ph.D., Prof. — Dept. of Histol. and Embryol., School of Dental Med., Univ. of Pennsylvania, 40th and Spruce Sts., PHILADELPHIA, Pa. 19104, U.S.A. • a Organogenesis in vitro (limb bud, cranial neural crest) . Ambystoma maculatum (Urodela) . „ , b Cellular differentiation (pigment cell; ectomesenchyme) : 1. causal biochemistry of cellular differentiation; 2. differentiation of cytoplasmic fragments. Same species as a c Morphology and causal biochemistry of striated muscle differentiation. Same species as a d Electrophoresis of molecular constituents of specific embryonic anlagen and cell types: fraction recovery and tissue culture of embryonic cells in the presence of selected fractions. Same species as a e Cytochimeras in tissue culture from disaggregated cells of embryos of different classes. Gallus spec. (Aves), Mus spec. (Rodentia) f Role of probabilistic processes in cellular differentiation. Same species as e g Ontogeny of proteins and amino acids. Fundulus heteroclitus (Teleostei) h The energy pathways of differentiating systems. (Vertebrata) i Informational macromolecules in early development and differentiation. ( Echinodermata, Vertebrata) j The molecular basis of major and minor symmetry in embryogenesis. (Vertebrata) WILDE, J. de Ph.D., Prof. — Lab. of Entomol., Agric. Univ., Binnenhaven 7, P.O.B. 62, WAGENINGEN, Netherlands WILLIAMS, Miss G. H. Ph.D. — Dept. of Pharmacol., Hershey Med. Center, The Penn- sylvania State Univ., HERSHEY, Pa. 17033, U.S.A. a Regulation of levels of specific proteins (lactate dehydrogenase isoenzymes) during functional development of mammary gland, and in mammary tumor. Rattus spec. (Rodentia) WILLIAMS, L. G. A.B. — Pacif. Marine Station, Univ. of the Pacific, DILLON BEACH, Calif. 94929, U.S.A. a Larval development and functional morphology (photomicrography, histology). Hermis- senda crassicornis, Aeolidia papulosa, Phidiana pugnax, Cadlina limbaughi, Anisodoris nobilis, Triopha carpenteri (Nudibranchiata), Phyllaplysia taylori (Tectibranchiata, Opisthobranchiata, Gastropoda) WILLIAMS, N. E. Ph.D., Prof. — Dept. of Zool., Coll. of Lib. Arts, Univ. of Iowa, IOWA- City, Iowa 52240, U.S.A. a Electron microscopy of developing oral apparatus. Tetrahymena spec. (Ciliata) b Regulation of protein synthesis in development. Tetrahymena spec. (Ciliata) WILLIER, B. H. Ph.D., Sc.D., Prof. (Emer.) — Dept. of Biol., Johns Hopkins Univ., Charles and 34th Sts., BALTIMORE, Md. 21218, U.S.A. • a Adaptive morphogenesis in the yolk-sac membrane. Gallus domesticus (Aves) b The freemartin. (Mammalia) WILLIS (HORWITZ), Mrs. J. Ph.D., Prof. — Dept. of Entomol., Univ. of Illinois, URBANA, 111. 61801, U.S.A. a Influence of juvenile hormone on cuticular proteins and morphology. Hyalophora cecropia (Lepidoptera), Oncopeltus fasciatus (Hemiptera) WILSON, I. B. Ph.D. — Dept. of Zool. Univ. Coll. of North Wales, BANGOR, Caerns., Wales, U.K. a Establishment of implantation and early pregnancy. Mus musculus (Rodentia) b Experimental developmental morphology. Mus musculus (Rodentia) WILSON, J. G. Ph.D., Prof. — The Children's Hosp. Res. Found., Elland & Bethesda Aves., CINCINNATI, Ohio 45229, U.S.A. WILT, F. H. Ph.D., Prof. — Dept. of Zool., Univ. of California, BERKELEY, Calif. 94720, U.S.A. • a Mechanism of origin of hemoglobin-synthesizing machinery during development. Gallus domesticus (Aves) b Activation of protein and RNA synthesis in cleaving eggs. Strong ylocentrotus purpuratus (Echinoidea) c RNA synthesis during development. Same species as b 194 WIMSATT, W. A. Ph.D., Prof. — Div. of Biol. Sci. and Dept. of Anat., New York State Coll. of Vet. Med., Cornell Univ., 645 Emerson Hall, ITHACA, N.Y. 14850, U.S.A. • a Morphogenesis and comparative physiology of placenta and fetal membranes. (Elas~ mobranchi; Chiroptera) WINGSTRAND, K. G. Dr.phil., Prof. — Inst, of Comp. Anat., Universitetsparken 15, DK- 2100 COPENHAGEN 0, Denmark WINTER, Miss H. Dr.rer.nat. — Zool. Inst, der Univ., Berlinerstr. 15, 6900 HEIDELBERG, W.Germany a RNA synthesis and transport during oogenesis in the meroistic-telotrophic ovary. Dysdercus intermedins (Hemiptera) WISCHNITZER, S. Ph.D., Prof. — Dept. of Biol., Yeshiva Univ., 186th St. and Amsterdam Ave., NEW YORK, N.Y. 10033, U.S.A. a Electron microscopy of oogenesis. Tritucus viridescens (Urodela), Mus albicans (Rodentia), Saimici sciureus, Homo sapiens (Primates) WITSCHI, E f Ph.D., M.D., Prof. — Rockefeller Univ., NEW YORK, N.Y. 10021, U.S.A. WITTENBORG, M. H. f M.D., Prof. — Children's Hosp. Med. Center, BOSTON, Mass. 02115, U.S.A. WOELLWARTH, C. von Dr.phil. — Heiligenberg Inst., 7799 HEILIGENBERG, Baden, W.Germany • a Autonome Musterbildung in der Medullarplatte. (Amphibia) b Determination der Kopforgane. (Amphibia) c Entstehung von Situs inversus durch Defekte und verschiedene aussere Einflusse. (Urodela) WOERDEMAN, M. W. M.D., Prof. (Emer.) — Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTERDAM-O., Netherlands • a Lens development. (Aves; Mammalia) WOERLE, R. — I. Zool. Inst., Friedrich-Alexander Univ., Universitatsstr. 19, 852 ERLAN- GEN, W.Germany a Embryology. Daphnia magna (Cladocera, Crustacea) WOLBERT, P. Dr.rer.nat. — Zool. Inst. I, Univ. Wiirzburg, Rontgenring 10, 87 WORZ- BURG, W.Germany a Hormone dynamics in the pupa during normal development and after wounding or X- raying. Galleria mellonella ( Lepidoptera) WOLF, R. Dr. — Heiligenberg Inst., 7799 HEILIGENBERG, W.Germany — Zool. Inst, der Univ., Rontgenring 10, 87 WORZBURG, W.Germany a Correlation between kinematics and specific ultrastructures during early embryogenesis, including experiments by physical noxes (time lapse microcinematography, electron microscopy). Wachtliella persicariae (Cecidomyiidae) , Chironomus thummi (Chironomi- dae, Diptera) WOLFE, J. S. Ph.D. — Dept. of Biol., Wesleyan Univ., MIDDLETOWN, Conn. 06457, U.S.A. a The effect of karyomere formation in early cleavage on later development. (Echinoidea) b Morphogenetic considerations of the oral apparatus. Tetrahymena pyriformis (Ciliata) WOLFF (HENNIG), Mrs. Em. Dr.es Sci. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Organ culture of cancer tumors taken directly from the patient: growth factors for long term culture; culture on extracts of chick mesonephros and yeast; fractionation of dialysates of liver extracts. Homo sapiens (Primates) WOLFF, Et. C. Dr.es Sci., Prof. — Inst. d'Embryol. et Teratol. Exper. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France • a Culture in vitro de longue duree de tumeurs malignes en presence et en l'absence d'organes embryonnaires. Homo sapiens (Primates) (avec Em. WOLFF) b La differenciation et l'intersexualite in vitro et in vivo des gonades embryonnaires par les methodes des antihormones. (Aves) WOLK, M. M.Sc. — Dept. of Zool., Hebrew Univ. of Jerusalem, JERUSALEM, Israel a Separation of epiblast from hypoblast by inserted membranes in an attempt to detect possible inductive influences. Gallus domesticus (Aves) WOLPERT, L. Ph.D., Prof. — Dept. of Biol, as Appl. to Med., Middlesex Hosp. Med. Sch., LONDON W1P 6DB, England • a Cellular basis of morphogenesis and pattern formation: 1. Regeneration. Hydra spec. (Hydvozoa); 2. Morphogenesis. Gallus domesticus (Aves); 3. Limb development and regeneration. (Amphibia) WOLSKY, A. Dr.phil., Prof. — Dept. of Biol., Marymount Coll., TARRYTOWN, N.Y. 10591, U.S.A. • a Effect of anti-metabolites, antibiotics (especially actinomycin) and nucleic acids on development and regeneration. Paracentrotus lividus, Arbacia punctulata (Echinoidea), Triturus viridescens, Rana pipiens (Amphibia) b A re-investigation of the influence of neurogenesis on the development of the compound eye. Bombyx mori (Lepidoptera) c Lens regeneration in embryonic stages under normal conditions and under the influence of chemical inhibitors. Ambystoma punctatum (Urodela) 195 WOLTZ, Ph. Maitre es Sci. — Lab. de Bot., Univ. de Provence, Centre St. Charles, Place Victor Hugo, 13 MARSEILLE 3, France a Influence of cotyledon primordia on vascular bundle development in embryos cultured in vitro (microsurgery) . Pinus pinea, P. patustris (Gymnospermae) WOOD, J. G. Ph.D., Prof. — Sect, of Neurobiol., Univ. of Texas Med. School at Houston, 102 Jesse H. Jones Library Bldg., HOUSTON, Texas 77025, U.S.A. a Histochemistry and electron microscopy of developing adrenomedullary cells. Mus musculus (Rodentia) WOODS. J. E. Ph.D. — Dept. of Biol. Sci., De Paul Univ., 1036 W. Belden Ave., CHICAGO, 111. 60614, U.S.A. a Histochemical demonstration of androgens, estrogens and corticoids in the gonads and adrenals of the developing embryo. Gallus domesticus (Aues) b Hypophysectomy effects upon histochemically demonstrable androgens, estrogens and corticoids in the gonads and adrenals of the developing embryo. Gallus domesticus (Aves) c Ontogenesis of the pituitary-gonadal and pituitary-adrenal axes in the developing embryo as demonstrated by plasma and allantoic fluid steroid hormone levels. Gallus domesticus (Aves) WOOL, I. G. Prof. — Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, 1101 E. 57th St., CHICAGO, 111. 60637, U.S.A. WOOLLAM, D. H. M. M.D., Sc.D. — Anat. School, Univ. of Cambridge, Downing St., CAMBRIDGE CB2 3DY, England a Teratology. (Mammalia) WOYKE, J. Dr.habil., Prof. — Dept. of Biol. Basis of Anim. Breeding, Fac. of Zootechnics, Coll. of Agric, ul. Nowoursynowska 166, WARSZAWA 12, Ursynow, Poland a Developmental genetics; sex determination and development of diploid drones. Apis mellifera (Hymenoptera) b Development of reproductive organs and spermatogenesis of diploid drones (larval and pupal stage) . Apis mellifera (Hymenoptera) WRBA, H. Dr.med., Dr.rer.nat., Prof. — Inst, fur Krebsforsch., Univ. Wien, Borschkegasse 8a, Postfach 72, A-1090 WIEN, Austria a Stoffwechsel in vitro. (Rodentia) b Eihautbildung, Differenzierung und Missbildung in vitro. (Rodentia) c Heterotransplantation. (Rodentia) d Diaplacentare Carcinogenese. (Rodentia) WRENN, Mrs. J. O. Th. B.A. — Dept. of Biol. Sci., Stanford Univ., STANFORD, Calif. 94305, U.S.A. WRIGHT, Th. R. F. Ph.D., Prof. — Dept of Biol., Univ. of Virginia, Gilmer Hall, CHAR- LOTTESVILLE, Va. 22903, U.S.A. a The genetic control of enzyme activity during development. Drosophila melanogastec (Diptera) b Temperature sensitive lethal mutations affecting embryogenesis. Drosophila melanogaster (Diptera) c Genetic control of myogenesis. Drosophila melanogaster (Diptera) WR6BLEWSKA, Miss J. M.Sc. — Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Krakowskie Przedmiescie 26/28, WARSZAWA 64, Poland a Preimplantation development in vivo and in vitro. Mus musculus (Rodentia) b Chromosomal aberrations in embryogenesis. Same species as a WR6BLEWSKI, R. Dr.med., Prof. — Dept. of Gen. Biol., Silesian Acad, of Med., K. Marksa 19, Rokitnica ZABRZE 8, Poland WU, G.-J. — Dept. of Embryol., Carnegie Inst, of Washington, 115 W.University Parkway, BALTIMORE, Md. 21210, U.S.A. a Regulation of synthesis of nuclear and cytoplasmic mitochondrial nucleic acids during early development. Rana pipiens, Xenopus laevis (Anura) (with I. DAWID and I. HORAK) WURGLER, F. E. Dr., Prof. — Dept. of Zool., Swiss Fed. Inst, of Technol, Universitatstr. 2, 8006 ZURICH, Switzerland a X-ray effects on gametes, embryos, larvae, and pupae: influence of chromosome con- figuration, specific genes and developmental stage. Drosophila melanogaster (Diptera) WURMBACH, H. Dr., Prof. — Inst, fur Landwirtsch. Zool. und Bienenk. der Univ., Melb- weg, 53 BONN, W.Germany a Beeinflussing des Wachstums und der Differenzierung durch Wirkstoffe (Schilddrusen- hormon, Steroide, teratogene Substanzen). Xenopus laevis, Bufo bufo (Anura), Gallus gallus (Aves) b Formbildende Krafte beim Wachstum ( Wachstumsdynamik) ; formbildende Bedeutung der Gewebe. Bufo spec, Xenopus laevis (Anura), Gallus gallus (Aves) c Pathological abnormalities in development, caused by herbicides. Apis mellifera (Hymenop- tera) WYATT, G R. Ph.D., Prof. — Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, Conn. 06520, U.S.A. 196 a Protein synthesis, RNA and ribosomes; changes during hormone action and metamorphosis. Hyalophora cecropia, Manduca sexta (Lepidoptera) b Protein synthesis and transport in oogenesis; regulation by hormones. Hyalophora cecropia (Lepidoptera) and other spp. (Insecta) WYLIE, C. C. B.Sc. — Dept. of Anat. and Embryol., Univ. Coll. London, Gower St., LONDON WC1E 6BT, England WYSOCKA, Miss B. B.Sc. — Dept. of Histol. and Embryol., Acad, of Med., ul. Narutowicza 60, EODz, Poland a Comparative histochemistry and biochemistry of amounts and distribution of some in- organic salts in spodograms of lungs and of livers in relation to the level of Na, K, and Ca in blood plasma during embryogenesis. Xenopus laevis (Anura), Rattus nocvegicus, Cavia poccellus (Rodentia) WYTTENBACH, Ch. R. Ph.D. — Dept. of Physiol, and Cell Biol., Univ. of Kansas, LAWRENCE. Kansas 66044, U.S.A. a Mechanics and physiological regulation of annulated and unannulated growth in pedicels and stolons (microlaser beam irradiation, metabolic inhibitors, electron microscopy). Campanularia flexuosa and other spp. (Hydrozoa) XAVIER MORATO, M. J. Prof. — Inst, de Histol. e Embriol., Fac. de Med., Av. Prof. Egas Moniz, LISBOA 4, Portugal a Histogenesis of the area postrema. Felis catus (Carnivora) b Histogenesis of the neurohypophysis, at microscopical level. Felis catus (Carnivora), Oryctolagus cuniculus (Lagomorpha) c Action of ionizing radiations upon the embryonated egg. Gallus domesticus (Aves) (with M. J. RODRIGUES CORREIA) YAFFE, D. Dr. — Dept. of Cell Biol., The Weizman Inst, of Sci., REHOVOTH, Israel • YAJIMA, H. Ph.D. — Dept. of Biol., Fac. of Sci., Ibaraki Univ., Bunkyo-2-chome, MITO, Japan a Malformations induced by irradiation with monochromatic ultraviolet light. Chironomus dorsalis (Diptera) b Effects of temperature during and after centrifugation of eggs on the production of double malformations. Chironomus dorsalis (Diptera) c Effect of ultraviolet irradiation upon the re-entry of pole cells (electron microscopy) . Chironomus dorsalis (Diptera) d Electron microscopy of eggs centrifuged at early and middle pre-migration stages. Chironomus dorsalis (Diptera) YAMADA, J. D.Agr., Prof. — Lab. of Physiol, and Ecol., Fac. of Fish., Hokkaido Univ., HAKODATE, Hokkaido, Japan • a Development and growth of hard tissues. (Teleostei) b Yolk absorption during embryogenesis. (Teleostei) YAMADA, K. M. B.A. — Dept. of Biol. Sci., Stanford Univ., STANFORD, Calif. 94305, U.S.A. YAMADA, T. D.Sc, Prof. — Biol. Div., Oak Ridge Natl. Lab., P.O.Box Y, OAK RIDGE, Tenn. 37830, U.S.A. • a The mechanism of dedifferentiation in Wolffian lens regeneration (ultrastructure, biochem- istry) . Notophthalmus (Triturus) viridescens (Urodela) b The factor of redifferentiation in Wolffian lens regeneration (tissue and cell culture). Same species as a YAMADA. T. Ph.D. — Div. of Biol., Natl. Inst, of Radiol. Sci., 9-1, 4-chome, Anagawa, CHIBA, 280 Japan a Biochemical studies on effect of radiation on the embryo. Oryzias latipes (Teleostei), Bufo vulgaris (Anura) YAMADORI, T. M.D., Prof. — Dept. of Anat.. Div. I, School of Med., Hirosaki Univ., Zaifucho 5, HIROSAKI-City, Aomori-ken, 036 Japan a Development of nerve cells in the spinal ganglia. Rattus norvegicus (Rodentia) YAMAGAMI, K. Ph.D. — Zool. Inst., Univ. of Tokyo, Hongo 7-3, Bunkyo-ku, TOKYO. 113 Japan a Biochemical studies on embryonic and yolk proteins. (Teleostei) b Partial purification of chorionase. Oryzias latipes (Teleostei) c Ontogeny of hemoglobins in embryos and larvae before complete absorption of yolk material. Salmo gairdnerii syn. irideus (Teleostei) YAMAGUCHI, T Ph.D. — Div. of Biol., Natl. Inst, of Radiol. Sci., 9-1, 4-chome, Anagawa, CHIBA, 280 Japan a Regeneration of cell renewal systems after radiation injury. Mus musculus, Cavia porcellus (Rodentia) YAMAMOTO, K. D.Sc, Prof. — Lab. of Fresh-water Fish Cult., Dept. of Biol., Fac. of Fish., Hokkaido Univ., HAKODATE, Japan • a Histo-physiological studies of oogenesis. (Teleostei) b Electron microscopy of oogenesis. (Teleostei) c Studies on the hormones of reproduction. (Teleostei) 197 YAMAMOTO, T. Dr.Med., Dr.Med.Sci., Prof. — Dept. of Anat, Fac. of Med., Kyushu Univ., FUKUOKA, 812 Japan YAMAMOTO, T. D.Sc, Prof. — Biol. Inst., Fac. of Sci., Nagoya Univ., Chikusa-ku, NAGOYA, Japan • YAMAMOTO, T. S. D.Sc. — Zool. Inst., Fac. of Sci., Hokkaido Univ., North 10, West 8, SAPPORO, 060 Japan a Cytochemistry of development. (Teteostei) YAMAMURA, H. M.D. — Dept. of Anat., Sch. of Med., Hiroshima Univ., Kasumi-cho, HIROSHIMA, Japan YAMANA, K. D.Sc, Prof. — Dept. of Biol., Fac. of Sci., Kyushu Univ., Hakozaki-cho, FUKUOKA, 812 Japan a Regulation of ribosomal RNA synthesis during embryonic development. Xenopus laevis (Anura) YANAGIMACHI, R. Ph.D. — Dept. of Anat., Univ. of Hawaii, 1960 East- West Rd., HONOLULU, Hawaii 96822, U.S.A. a I n v i t r o fertilization and development of eggs. Mesocricetus auratus, Rattus norvegicus, Mus musculus (Rodentia) b Chromosomes and development. Same species as a YANAGISAWA, T. D.Sc, Prof. — Embryol. Sect., Dept. of Biol., Tokyo Metropolitan Univ., 2-1-1 chome, Fukazawa-machi, Setagaya-ku, TOKYO, 158 Japan a Phosphagens in egg and spermatozoa. (Echinodecmata) b Ion exchange and paper chromatography of the nature of the acid-soluble nucleotides in the egg and their changes during development. Hemicentrotus spec, Anthocidavis spec, Pseudocentrotus spec. (Echinoidea) , Asterias spec, Asterina spec (Asteroidea) c Tracer experiments on phosphate, sugar, and nucleic acid metabolism of embryo. (Echino- dermata) YARDIN, M. H. M.D., D.D.S. — U.E.R. d'Odontol., 2 place Pasteur, 35 RENNES, France a Morphology of jaw development in the young animal. Oryctolagus cuniculus (Lagomorpha) b Experimental morphogenesis in the young animal: muscle ablations, neurotomy, dental bud transplantation etc. Same species as a YASUDA, M. M.D. — 2nd Dept. of Anat., Kyoto Prefectural Univ. of Med., Kawaramachi- Hirokoji, Kamikyo-ku, KYOTO 602, Japan a Epidemiology of anomalies in embryos. Homo sapiens (Primates) b Chromosome aberrations and sex ratio in embryos. Homo sapiens (Primates) c Morphogenesis of certain malformations of extremities in embryos. Homo sapiens (Primates) d Teratogenicity of herbicides and pesticides. Rattus norvegicus (Rodentia) YASUDA, Mrs Y. M.D. — Dept. of Anat., Kyoto Univ., Konoe-cho, Yoshida, Sakyo-ku, KYOTO 606, Japan a Comparative study on in vitro development of organ primordia. Mus musculus (Rodentia), Homo sapiens (Primates) YNTEMA, C. L. Ph.D., Prof. — Dept. of Anat., Upstate Med. Centre, State Univ. of New York, 766 Irving Ave., SYRACUSE, N.Y. 13210, U.S.A. • a Acceptance of homografts and xenografts during embryonic stages. (Chelonia) YOSHIDA, K. Ph.D. — Div. of Radiotherapy, Oncology Lab., Mercy Hosp., 1400 Locust St., PITTSBURGH, Pa. 15219, U.S.A. a Macromolecular synthesis during lens differentiation in vitro. Gallus domesticus (Aves) YOSHIKAWA, I. — Dept. of Genet., School of Med., Nagasaki Univ., 12-4, Sakamoto- machi, 852 NAGASAKI, Japan a Radiation genetics (embryo, germ cells). Drosophila melanogaster (Diptera) YOUNG, B. A. M.D., Ph.D. — Anat. School, Univ. of Cambridge, Downing St., CAM- BRIDGE CB2 3DY, England a Electron microscopy of the placenta. (Pinnipedia, Cetacea) b Electron microscopy of developing endocrine glands. (Pinnipedia, Cetacea) YU (KOU), Mrs. N. W. B.S. — Dept. of Biomorph., Natl. Defense Med. Center, P.O.Box 7432, TAIPEI 107, Taiwan, Republ. of China a Reversibility of sex transformation with temperature treatment. Rana catesbeiana (Anura) YUKAWA, O. M.Sc. — Div. of Biol., Natl. Inst, of Radiol. Sci., 9-1, 4-chome, Anagawa, CHIBA, 280 Japan a Function of microsomes in developing liver. Rattus norvegicus (Rodentia) YVROUD, Miss M. — Lab. d'Anat. Comp., Fac. des Sci. d'Orsay, Batiment 441, 91 ORSAY, France ZAAYER, Miss J. J. P. Ph.D. — Lab. for Cell Biol, and Histol.. State Univ., Rijnsburgerweg 10, LEIDEN, Netherlands • a Hormonal activity of fetal gonads and adrenal glands with regard to the development of the reproductive tract (organ culture). Cavia porcellus (Rodentia), Homo sapiens (Primates) b Hormonal activity of the placenta in organ culture. Cavia porcellus (Rodentia) 198 ZACCANTI, F. Dr. — Inst, of Zool., Univ. of Bologna, Via S.Giacomo 9, 40126 BOLOG- NA, Italy a I n v i t r o culture of larval and adult gonads. Bufo bufo, Rana dalmatina (Anura) b Hormonic regulation of ovarian and Bidder's organ oogenesis. Bufo bufo (Anura) c Analysis of sex differentiation by autoradiographic methods. Same species as a ZAFFAGNINI, F. Dr., Prof. — Inst, of Zool., Univ. of Bologna, Via S. Giacomo 9, 40126 BOLOGNA, Italy a Cytochemistry and electron microscopy of the nurse-cells and oocyte differentiation. Daphnia magna (Cladocera, Crustacea) b Endocrine centres, growth, moulting, and gametogenesis. Same species as a c Organization of reproductive system and gametogenesis. Limnadia lenticularis (Conchostra- ca), Derocheilocaris vemanei (M ystacocarida, Crustacea) ZAMBONI, L. M.D., Prof. — Dept. of Pathol., Harbor Gen. Hosp., U.C.L.A., 1000 W. Carson St., TORRANCE, Calif. 90509, U.S.A. a Electron microscopy of the fertilization process. Homo sapiens and other spp. (Primates) b Embryonic development. Homo sapiens (Primates) ZEILMAKER, G. H. Ph.D. — Dept. of Endocrinol., Growth and Reprod., Med. Fac. Rot- terdam, P.O.B. 1738, ROTTERDAM, Netherlands a Endocrine aspects of blastocyst implantation. Rattus norvegicus (Rodentia) b Egg transplantation. Mus musculus (Rodentia) c Development of ectopic trophoblast. Rattus norvegicus, Mus musculus (Rodentia) d Energy requirements and fertility of matured oocyte. Mus musculus (Rodentia) e Fusion of blastomeres and oocytes with inactivated sendai virus. Mus musculus (Rodentia) ZERBIB, C. D.E.S. — Lab. de Genet. Evol. et de Biomet, C.N.R.S., 91 GlF-sur-YVETTE, France ZILLER (SENGEL), Mrs. C Dr.es Sci. — Inst. d'Embryol. et Teratol. Exp. du C.N.R.S., 49bis Av. de la Belle Gabrielle, 94 NOGENT-sur-MARNE, France — Lab. d'Embryol. Exp. du Coll. de France, 1 1 Place M.Berthelot, 75 PARIS Ve, France a In vitro culture of regenerating tissues and organs. Dugesia lugubris, D. tigrina, Polycelis nigra (Turbellaria) b Influence of various factors (tissue and organ extracts) on pharynx regeneration. Same species as a ZIMMERMAN, A. A. Prof. (Emer.) — Dept. of Anat., Coll. of Med., Baylor Univ., HOUSTON, Tex.. U.S.A. • ZIMMERMANN, W. Dr.rer.nat. — Arbeitsgr. Prof. G. H. M. Gottschewski am Max- Planck-Inst. fur Immunbiol., Stefan-Meier-Str. 8, 78 FREIBURG i.Br., W.Germany a Normal development of early stages with special reference to the immunological and nutritional relations with the mother. Mesocricetus auratus, Cavia cobaya (Rodentia) b Determination and differentiation of organ primordia analysed by the use of teratogenic substances. Mesocricetus auratus, Cavia cobaya (Rodentia) ZINN, K. M. M.D. — Ophthalmol. Dept., Mount Sinai Hosp., 100th St. and 5th Ave., NEW YORK, N.Y. 10029, U.S.A. ZITO (BIGNAMI), Mrs. R. Ph.D. — Lab. di Radiobiol. Anim., C.S.N. — Casaccia, C.P. 2400, 00100 ROMA, Italy ZONNEVELD, B. J. M. Drs. — Dept. of Genet., Univ. of Leiden, Kaiserstr. 63, LEIDEN, Netherlands a Developmental genetics of the fruiting bodies. Aspergillus nidulans (Ascomycetes) ZOTIN, A. I. Dr.biol.sci., Prof. — Lab. of Developm. Biophys., Inst, of Developm. Biol., Acad, of Sci. of the U.S.S.R., 26 Vavilov St., MOSCOW 117133, U.S.S.R. ZUBOVA, Mrs. S. E. — Biol. Inst, Leningrad State Univ., LENINGRAD B-164, U.S.S.R. a Sex differentiation. (Chondrostei) b The process of gametogenesis under ionizing radiations. (Chondrostei) ZUCKERMAN, Sir. S. M.D., D.Sc, Prof. — Zool. Soc. of London, Regent's Park, LON- DON N.W.I, England ZUSMAN, I. N. Cand.biol.sci. — Inst, of Anim. Evolut. Morphol. and Ecol., Acad, of Sci. of the U.S.S.R., Lenin Ave 33, MOSCOW W-71, U.S.S.R. a Resistance and adaptation of the early embryo. Testudo graeca, T. horsfieldi, Emys orbicularis and others (Chelonia) , Gallus gallus, Anas domesticus, Coturnix coturnix and others (Aves) ZOST. Miss B. Dr.spec. — School of Biol. Sci., Flinders Univ., BEDFORD PARK, S.A. 5042, Australia a The germ plasm. Xenopus laevis (Anura) ZWAAN, J. M.D., Ph.D., Prof. —Dept. of Ophthalmol., Children's Hosp. Med. Center, and Dept. of Anat., Harvard Med. School, BOSTON. Mass. 02115, U.S.A. • a Analysis of macromolecular synthesis during induction and differentiation of the eye lens. Gallus domesticus (Aves), Mus musculus (Rodentia) b Developmental genetics of mutations affecting eye development. Mus musculus (Rodentia) ZWILLING, E. f Ph.D., Prof. — Brandeis Univ., WALTHAM, Mass. 02154, U.S.A. 199 DIRECTORY OF INSTITUTES with Members engaged in Developmental Biology (geographical order) The Directory is arranged according to: 1 ) continents and subcontinents; 2) countries and states; and 3) cities. Within each of these categories an alphabetical order is maintained. The Directory does not give Institute addresses. These can be found by looking up the name of one of the Institute members in the Directory of Names and Addresses. Names of Institute members who are not explicitly engaged in developmental biology are as a rule not listed, with the exception of the names of Institute directors. (*) Asterisks indicate those Institute members who appear in the Directory of Names and Addresses with one or more research subjects. If all members of an Institute lack asterisks, this usually means that no information has been submitted by the Institute in 1969. Older information concerning such Institutes may be found in previous issues. AFRICA EGYPT Alexandria, Alexandria Univ., Fac. of Sci., Dept. of Zool. SEDRA, S. N. Prof. * MICHAEL, M. I. Asst. Prof. KHALIL, S. H. Demonstr. Giza, Cairo Univ., Fac. of Agric, Anim. Prod. Dept. * KAMAR. G. A. R. Assoc. Prof. NIGERIA Ibadan, Univ. of Ibadan, Dept. of Anat. GRILLO, T. A. I. Prof., Head BAXTER (GRILLO), Mrs. D. L. DESALU, A. B. O. LIPEDE, A. G. TAKOR, T. T. NAGANO, T. KUBOTA, K. KALANGO, Miss M. I. AFONYA, I. I. SIERRA LEONE Freetown, Njala Univ. Coll., Dept. of Zool. CHAYTOR, D. E. B. Assoc. Prof. SOUTH AFRICA Bloemfontein, Univ. of the O.F.S. Dept. of Anat. * TOERIEN, M. J. Prof. Dept. of Zool. * DREYER, Miss M. V. Lect. Durban, Univ. of Durban-Westville Dept. of Zool. * SMIT, A. L. Prof., Head * FRANK, G. H. Sen. Lect. Empangcni (Natal), Univ. of Zululand, * COETZER, A. Lect. Johannesburg, Rand Afrikaans Univ., Dept. of Zool. * SWANEPOEL, J. H. Lect. Johannesburg, Univ. of the Witwatersrand, Med. School, Dept. of Anat. * ANDREW, Miss A. Sen. Lect. * KRAMER, Miss B. Fac. of Sci., Dept. of Zool. * BALINSKY, B. I. Prof., Head * GABIE (GUBBAY), Mrs. V. Sen. Lect. * FABIAN, B. C. Sen. Lect. * CAUNTER (DEVIS), Mrs. R. J. Lect. Onderstepoort, Univ. of Pretoria, Fac. of Vet. Sci., Dept of Anat. DE BOOM, H. P. A. Prof., Head GERNEKE, W. H. Sen. Lect. LEROUX, J. M. W. Sen. Lect. Pretoria, Univ. of Pretoria, Fac. of Sci., Dept. of Zool. COETZEE, Miss F. C. Techn. Asst. SCHEEPERS. G. J. Techn. Asst. Stellenbosch, Univ. of Stellenbosch, Fac. of Sci., Zool. Inst. TOIT, C. A. du Prof., Dir. * KOCK, J. M. de Sen. Lect. 200 NORTH AMERICA CANADA ALBERTA (Alta.) Calgary, Univ. of Calgary, Fac. of Arts & Sci., Dept. of Physics * CHALLICE, C. E. Prof. Fac. of Med., Div. of Med. Biochem. * CHURCH, R. B. Prof., Head * HANCOCK, R. L. Assoc. Prof. Div. of Morphol. Sci. * DICKSON, A. D. Prof., Head Fac. of Sci., Dept. of Biol. * DUERKSEN, J. D. Prof. * BEWLEY, J. D. Asst. Prof. * BROWDER, L. Asst. Prof. Edmonton, Univ. of Alberta, Fac. of Sci., Dept. of Bot. YOUNG, B. Asst. Prof. Div. of Plant Biochem. and Physiol., Dept. of Plant Sci. * ZALIK, S. Prof. Dept. of Entomol. * CRAIG, D. A. Asst. Prof. * HEMING, B. S. Asst. Prof. Dept. of Genet. NASH, D. Assoc. Prof. * HODGETTS, R. B. Asst. Prof. Dept. of Zool. RUTH, R. F. Assoc. Prof. * EISENBERG-ZALIK, Mrs. S. Asst. Prof. LONGENECKER, B. M. Res. Assoc. KNIZETOVA (VEJP), F. Res. Assoc. SIDKY, Y. A. Res. Assoc. BRITISH COLUMBIA (B.C.) Vancouver, Univ. of British Columbia Dept. of Zool. * FINNEGAN, C. V. Prof. * ACTON, A. B. Prof. * FORD, P. Assoc. Prof. AUERSPERG, N. Assoc. Prof. * BERGER, J. D. Asst. Prof. * KASINSKY, H. E. Asst. Prof. * LARRIVEE, D. H. Grad. Stud. * BYRD, E. W.. Jr. Grad. Stud. * GARROD, Mrs. E. M. F. Grad. Stud. * McLEAN, B. G. Grad. Stud. * BOLS, N. C. Grad. Stud. * LACALLI, Th. C Grad. Stud. HUNTER, R. M. Grad. Stud. MANITOBA (Man.) Winnipeg, Univ. of Manitoba, Fac. of Agric, Dept. of Entomol. * BRUST, R. A. Assoc. Prof. Plant Sci. Dept. LA CROIX, L. J. Assoc. Prof. FRAGATA, M. Postdoct. Fellow Facs. of Med. and Dent., Dept. of Anat. * BERTALANFFY, F. D. Prof. * HOSHINO, K. Prof. * PERSAUD, T. V. N. Asst. Prof. Dept. of Oral Biol. PRITCHARD, E. T. Assoc. Prof. Dept. of Physiol. * PHILLIS, J. W. Dept. of Zool. LAALE, H. W. Asst. Prof. NEWFOUNDLAND (Nfld.) St. John's, Mem. Univ. of Newfoundland, Dept. of Biol. * DAVIS, Ch. C. Prof. * BAL, A. K. Asst. Prof. NOVA SCOTIA (N.S.) Halifax, Dalhousie Univ., Fac. of Arts & Sci., Dept. of Biol. * HALL, B. K. Asst. Prof. * HALEY, L. E. Asst. Prof. Med. School, Biochem. Dept. * WAINWRIGHT, S. D. Prof. * WAINWRIGHT, Mrs. L. K. Prof. * MEZEI (TEICHMANN), Mrs. C. Asst. Prof. * FRASER, I. H. Grad. Stud. ONTARIO (Ont.) Hamilton, McMaster Univ., Fac. of Med., Dept. of Anat. * ANDERSON, J. E. Prof., Chairman * CARR. D. H. Prof. * McCALLION, D. J. Prof. * GIRARD, H. Kingston, Queen's Univ., Dept. of Anat. * JONEJA, M. G. Assoc. Prof. London, Univ. of W. Ontario, Health Sci. Center, Dept. of Anat. SINGH, R. P. Asst. Prof. SHAVER, Miss E. L. DICKSON, D. H. Coll. of Sci., Dept. of Zool. LOCKE, M. Prof. Chairman BATTLE, Miss H. I. Prof. PURKO, J. Assoc. Prof. ROSS, G. T. Grad. Stud, and Demonstr. BELLWARE, F. T. Grad. Stud, and Demonstr. JACQUES, Miss S. Y. Grad. Stud. and Demonstr. Ottawa, Anim. Res. Inst. * ROBERTSON, H. A. Chief Physiol. Sect. * HIDIROGLOU, M. Res. Scient. Ottawa, Carleton Univ., Fac. of Sci., Dept. of Biol. * BETZ, T. W. Assoc. Prof. Toronto, Univ. of Toronto, Dept. of Zool. CHANT, D. A. Prof., Chairman * LIVERSAGE, R. A. Prof. MASUI, Y. Assoc. Prof. * LALFOOK, Miss J. E. I. Asst. Prof. QUEBEC (Que.) Montreal, Lady Davis Inst, for Med. Res. * SCHULMAN, H. M. Montreal, McGill Univ., Dept. of Anat. * LEBLOND, C. P. Prof. 201 Canada (Que.) U.S.A. (Calif.) * CLERMONT, Y. Prof. Dept. of Biol. * FRASER, F. C. Prof. * TRASLER, Mrs. D. G. Res. Assoc. * FROMSON. D. R. Asst. Prof. * SCHULMAN, H. M. Montreal, Montreal Cane. Inst. Notre Dame Hosp. * KARASAKI, S. Assoc. Prof. Montreal, Univ. of Montreal, Fac. of Sci.. Dept. of Biol., Lab. of Molec. Biol. * COUSINEAU, G. H. Asst. Prof. * INOUfi, S. Asst. Prof. SASKATCHEWAN (Sask.) Saskatoon, Canada Agric, Res. Branch, Res. Station DAVIS, G. R. F. Res. Scient. CHURCH, N. S. Res. Scient. * EWEN, Al. B. Res. Scient. Saskatoon, Univ. of Saskatchewan, Dept. of Anat. * FEDOROFF, S. Prof., Dir. * BUTLER, H. Prof. * WENGER, B. S. Prof. * WENGER, Mrs. E. L. Res. Assoc. Western Coll. of Vet. Med., Dept. of Vet. Anat. * LATSHAW, W. K. Assoc. Prof. Dept. of Biol. JAMES, D. A. Asst. Prof. UNITED STATES ALABAMA (Ala.) Birmingham, Univ. of Alabama, Med. Center, Dept. of Anat. SENSENIG, E. C. Prof., Chairman HUMPHREY, Miss T. Prof. Coll. of Gen. Stud., Dept. of Biol. * POIRIER, G. R. Asst. Prof. ARIZONA (Ariz.) Tucson, Univ. of Arizona, Dept. of Biol. Sci. * BAGNARA, J. T. Prof. ARKANSAS (Ark.) College Heights, Univ. of Arkansas, Dept. of Biol. * ETHERIDGE, A. L. Assoc. Prof. Fayetteville, Univ. of Arkansas, Dept. of Zool. LOEFFLER, C. A. Asst. Prof. CALIFORNIA (Calif.) Berkeley, Clin. Pharmacol. Res. Inst. LOWER, W. R. Res. Assoc. Berkeley, Univ. of California, Div. of Entomol. * PIPA, R. L. Assoc. Prof. Dept. of Genet. FRISTROM, J. W. Asst. Prof. Dept. of Zool. * HUMPHREYS, T. D. Asst. Prof. * EAKIN, R. M. Prof. * HARRIS, M. Prof. * STERN, C. Prof. (Emer.) BERG, W. E. Prof. * WILT, F. H. Prof. TOKUNAGA, Miss C. * FRISTROM, Mrs. D. Res. Assoc. * BAKER, Mrs. P. C. Visit. Lect. Davis, Univ. of California, Dept. of Poultry Husbandry BISHOP (CALAME), Mrs. S. M. Dillon Beach, Univ. of the Pacific, Pacif. Mar. Stat. * TUCKER, J. S. Prof. * BLAKE, J. A. Asst. Prof. Biol. * MacMILLAN, Miss Fl. E. Grad. Res. Asst. * WILLIAMS, L. G. Grad. Res. Asst. Duarte, City of Hope Med. Center, Dept. of Biol. * OHNO, S. Chairman * SEECOF, R. L. Res. Scient Div. of Neurosci. * VAUGHN, J. E. Hayward, Calif. State Coll., Dept. of Biol. Sci. HEATH, H. D. Prof. Irvine, Univ. of Calif., Coll. of Med., Dept. of Human Morphol. * JOHNSON, E. M. Prof., Chairman Sch. of Biol. Sci., Developm. Biol. Lab. and Center for Pathobiol. * SCHNEIDERMAN, H. A. Chairman * LENHOFF, H. M. Prof., Dir. Marine Biol. Program * CAMPBELL, R. D. Assoc. Prof. * BRYANT, P. J. Asst. Prof. * BRYANT (POYNTZ), Mrs. S. V. Asst. Prof. * ARKING, R. Asst. Res. Biol. * VYSE, E. R. Res. Scient. * FOSKET (BAKER), Mrs. E. Res. Scient. * BODE, H. R. Lect. * SCHUBIGER, G. Lect. and Res. Scient. * SCHUBIGER (STAUB), Mrs. M. Res. Biol. * GRANGER (PARSONS), Mrs. N. Lect. * GRANGER, R. E. Res. Assoc. * GATEFF (ZOLLIKOFER), Mrs. E. A. Rf*s jt.ssoc! * POELS, C. L. M. Res. Scient. * MADHAVAN, K. Res. Scient. * OKADA, M. Res. Scient. La Jolla, Univ. of Calif., San Diego, Dept. of Biol. * STERN, H. Prof. * BUTLER, W. L. Prof. * FRIEDKIN, M. E. Prof. * HOLLAND, J. J. Prof. * KAPLAN, N. O. Prof. * LINDSLEY, D. L. Prof. * MILLS, S. E. Prof. * SATO, G. H. Prof. * DUTTON, R. W. Assoc. Prof. * VARON, S. S. Assoc. Prof. * HOTTA, Y. Assoc. * LOOMIS, W. F., Jr., Asst. Prof. * BRODY, S. Asst. Prof. 202 U.S.A. (Calif.) U.S. A. (Conn.) * CHRISPEELS, M. J. Asst. Prof. * ROTH, Th. F. Asst. Prof. FREEMAN, G. L. Asst. Prof. GROBSTEIN, C. * SIMON, M. I. Asst. Prof. * SELVERSTON, A. I. Asst. Prof. * BURDA- WILSON, Mrs. D. J. Asst. Prof. * TOKUYASU, K. Assoc. Res. Biol. Scripps Inst, of Oceanogr. * EPEL, D. Assoc. Prof. * VACQUIER, V. D. Asst. Res. Biol. Los Angeles, Univ. of Calif., Sch. of Med., Center for Health Sci., Dept. of Anat. HERZBERG, F. Assoc. Res. Anat. * TOWERS, B. Dept. of Med. Microbiol, and Immunol. VOGE, Mrs. M. Prof. * COLLIN, W. K. Postdoct. Fellow Dept. of Zool. SJOSTRAND, F. S. Prof. Los Angeles, Univ. of South. Calif., Sch. of Dent., Dept. of Biochem. * SLAVKIN, H. C Asst Prof. Sch. of Med., Dept. of Obstet. and Gynecol. * MARTIN, C. B., Jr. Assoc. Prof. Dept. of Biol. Sci. * PRAY, T. R. Prof. * BAKER, R. F. Asst. Prof. Palo Alto, Zoecon Corp. * STAAL, G. B. * WEIRICH, G. Pasadena, Calif. Inst, of Technol., Div. of Biol. SPERRY, R, W. * DAVIDSON, E. H. Assoc. Prof. * HOUGH, Mrs. B. R. Res. Assoc. Riverside, Univ. of Calif., Dept. of Life Sci. * MOORE, J. A. Prof. * MOORE, Mrs. B. C. Res. Assoc. MORETTI, R. L. Asst. Prof. San Francisco, San Francisco State Coll., Dept. of Cell and Molec. Biol. * BOWEN, Mrs. S. T. Prof. * DUNCAN, J. T. Assoc. Prof. San Francisco, Univ. of Calif. Med. Center, Sch. of Dent., Dept. of Dent. Anat. * COLEMAN, R. D. Assoc. Prof. Sch. of Med., Dept. of Anat. * MONIE, I. W. Prof., Chairman ASLING, C. W. Prof. * GLASS, Miss L. E. Assoc. Prof. ROGERS. K. T. Assoc. Prof. * CHAMBERLAIN, J. G. Asst. Prof. Dept. of Pediat. DALLMAN, P. R. San Luis Obispo, Calif. State Polytechn. Coll., Biol. Sci. Dept. * THURMOND, W. Prof. * RITSCHARD, R. L. Assoc. Prof. * KREJSA, R. J. Asst. Prof. Santa Barbara, Univ. of Calif., Dept. of Biol. Sci. * TRIPLETT, E. L. Assoc. Prof. * KOHL, D. M. Asst. Prof. Sepulveda, Veterans Adm. Hosp., Developm. Biol. Lab. PIKO, L. Sen. Res. Fellow Stanford, Stanford Univ., Sch. of Med., Dept. of Anat. GRAY, D. J. Prof. SCHROEDER, T. E. Dept. of Med. * STOCKDALE, F. E. Asst. Prof. Dept. of Pediat. * KRETCHMER, N. Prof. * BERNFIELD, M. R. Assoc. Prof. Dept. of Pharmacol. * SCHIMKE, R. T. Prof. * PALMITER, R. D. Postdoct. Fellow Dept. of Biol. Sci. WESSELLS, N. K. CENTER, Mrs. E. M. WRENN, Mrs. J. O. Th. Grad. Stud. BRADLEY, M. O. Grad. Stud. YAMADA, K. M. Grad. Stud. ANDERSON, Miss M. J. Grad. Stud. Torrance, Harbor Gen. Hosp., Dept. of Pathol. * ZAMBONI, L. Assoc. Prof. * THOMPSON, R. S. Postdoct. Fellow * GONDOS, B. * MOORE (SMITH), Mrs. D. Res. Assoc. COLORADO (Colo.) Boulder, Univ. of Colorado, Dept. of Molec, Cell., and Devi. Biol. RUNNER, M. N. Prof., Dir. PRESCOTT, D. M. Prof. GOLDSTEIN, L. Prof. PORTER, K. R. Prof. DANIEL, J. C, Jr. Assoc. Prof. McCONKEY, E. H. Assoc. Prof. HAM, R. G. Asst. Prof. PENE, J. J. Asst. Prof. Colorado Springs, Colorado Coll., Dept. of Biol. * HEIM, W. G. Prof. Denver, Univ. of Colorado Med. Center, Sch. of Dent, Dept. of Human Biol. * SCHULTZ, R. L. Prof. * TOBIN, C E. Prof. Fac. of Arts and Sci., Biol. Dept. WEISHEIT-SCHULTZ, Mrs. P. Prof., Assoc. Chairman CONNECTICUT (Conn.) Farmington, Univ. of Connecticut, Sch. of Dent., Dept. of Oral Biol. * KOLLAR, E. J. Sch. of Med., Dept. of Anat. * MARCHOK, Miss A. Hartford, Trinity Coll., Dept. of Biol. * VAN STONE, J. M. Prof. * CRAWFORD, R. B. Assoc. Prof. Hartford, Univ. of Connecticut, Health Center, Dept of Anat. * COLLINS, M. F. Middletown, Wesleyan Univ. Dept. of Biol. * HANSON, E. D. Prof. * KIEFER, B. I. Assoc. Prof. 203 U.S.A. (Conn.) U.S.A. (Ga.) * BERRY. S. J. Assoc. Prof. * INFANTE, A. A. Asst. Prof. * WOLFE, J. S. Asst. Prof. New Haven, Albertus Magnus Coll., * RUDNICK, Miss D. New Haven, Yale Univ., Fac. of Arts and Sci., Dept. of Biol. * MARKERT. C. L. Prof., Chairman * POULSON, D. F. Prof. * BOELL, E. J. Prof. * TRINKAUS. J. P. Prof. * WYATT. G. R. Prof. GALL, J. G. Prof. * GALSTON. A. W. Prof. * RUDDLE, F. H. Assoc. Prof. * SUSSEX, I. M. Assoc. Prof. * BETCHAKU, T. Instr. * CLUTTER, Mrs. M. E. SUSSEX Dap /V^SOC * DOANE, Mrs. W. W. Res. Assoc. & Lect. * RAMUS, J. S. Asst. Prof. * ROSENBAUM, J. L. Assoc. Prof. Sch. of Med., Dept. of Anat. STONE, L. S. Prof. GEHRING, W. J. Assoc. Prof. Dept. of Radiol. * SPENCER, R. P. Prof. School of Forestry BERLYN, G. P. Assoc. Prof. Storrs, Univ. of Connecticut, Inst, of Cell. Biol., Biol. Sci. Group * LAUFER, H. Assoc. Prof. * HAGEDORN, H. H. Postdoct. Fellow Genet, and Cell Biol. Sect. * HERRMANN, H. Prof. * KRIDER, H. M. Asst. Prof. Storrs Agric. Exp. Station, Dept. of Anim. Genet. * PIERRO, L. J. Prof. * HANSBOROUGH, L. A. Prof. * GOETINCK, P. F. Assoc. Prof. * KLEIN, N. W. Assoc. Prof. * HICKEY, E. D. Res. Asst. II Nutrit. Sci. Dept. * SOMES, R. G. Assoc. Prof. DELAWARE (Del.) Newark, Univ. of Delaware, Dept. of Biol. Sci. * VINCENT, W. S. Prof., Chairman * FRANCIS, D. W. DISTRICT OF COLUMBIA (D.C.) Washington, Catholic Univ. of America, Grad. Sch. of Arts and Sci., Biol. Dept. * LYNN, W. G. Prof. Washington, Georgetown Univ., Grad. Sch. of Arts 6 Sci., Dept. of Biol. * KING, T. J. Prof. * CHIARODO, A. J. Assoc. Prof. * ROBINSON, Miss H. L. Postdoct. Fellow Schs. of Med. and Dent., Dept. of Anat. BHUSSRY, B. R. Prof., Chairman * PEARCE, Th. L. Instr. * GULYAS, B. J. Instr. Washington, Trinity Coll. Dept. of Biol. * DIMOND. Sister M. T. Prof. FLORIDA (Fla.) Boca Raton, Florida Atlantic Univ., Coll. of Sci., Dept. of Biol. Sci. * DOBKIN, Sh. Assoc. Prof. Coral Gables, Univ. of Miami, Dept. of Biol. * GRABOWSKI, C. T. Prof. * IVERSON, R. M. Prof. * CLEGG, J. S. Assoc. Prof. * MURISON, G. L. Asst. Prof. * RICHARDSON, W. N. Asst. Prof. Inst, of Molec. Evol. METZ, C. B. Prof. HINSCH, Miss G. W. Prof. Gainesville, Agric. Res. Serv., Insect Attract. Behavior & Basic Biol. Res. Lab. * OBERLANDER, H. Gainesville, Coll. of Med., Univ. of Florida, Depts. of Pediat. and Biochem. * RENNERT, O. M. Assoc. Prof. Dept. of Zool. * BROOKBANK, J. W. Prof. * GREGG, J. H. Prof. DAVIS, F. C, Jr. Asst. Prof. KARP, G. C. Asst. Prof. Miami, Univ. of Miami, Sch. of Med., Dept. of Physiol. * ROCKSTEIN, M. Prof. * BAKER, G. T. Inst, of Marine Sci. OWRE (BOEHME), Mrs. M. H. Assoc. Prof. PROVENZANO, A. J. Assoc. Prof. YANG, W. T. Res. Scient. ROBERTSON, P. B. Res. Asst. Pensacola, Univ. of W. Florida, Fac. of Biol. * D'ASARO, C. N. Assoc. Prof. Sarasota, New College, Div. of Nat. Sci. * MORRILL, J. B. Prof. Tallahassee, Florida State Univ., Dept. of Biol. Sci. * BURDICK, M. L. Asst. Prof. Dept. of Chem. FRIEDEN, E. Prof. FISHER, J. R. Prof. TAYLOR, J. H. Prof. GEORGIA (Ga.) Athens, Univ. of Georgia Coll. of Arts & Sci., Dept. of Zool. * BRYAN, J. H. D. Prof. * LINDSAY, D. T. Assoc. Prof. * MATTINGLY, Miss E. Asst. Prof. Dept. of Botany * FULLER, M. S. Prof., Head * KEY, J. L. Res. Prof. KOCHERT, G. Asst. Prof. * BRYANT, T. R. Asst. Prof. Div. of Biol. Sci., Dept. of Zool. * HUMPHREYS, W. J. Prof. 204 U.S.A. (Ga.) U.S.A. (111.) * WATSON (BRYANT), Mrs. M. Grad. Stud. Atlanta, Emory Univ., Dept. of Biol. * CLEMENT, A. C. Prof. * HUMPHRIES, A. A., Jr. Prof. * HUNT, E. L. Prof. * ELMER, W. A. Asst. Prof. * SMITH, P. D. Asst. Prof. Atlanta, U.S. Publ. Health Serv., Natl. Communic. Dis. Center, Mycol. Sect. LI, Mrs. Yu-Ying FU Res. Chem. Augusta, Veterans Adm. Hosp., Div. of Med. Res. * BLUNT, M. H. HAWAII Honolulu, Univ. of Hawaii, Coll. of Arts and Sci., Dept. of Bot. * SMITH, C. W. Assoc. Prof. Harold L. Lyon Arboretum & Horticult. Dept. * SAGAWA, Y. Prof. School of Med., Dept. of Anat. * DE FEO, V. J. Prof., Chairman * DIAMOND, M. Prof. * YANAGIMACHI, R. Assoc. Prof. * KLEINFELD, Mrs. R. G. Assoc. Prof. * TEICHMAN, R. J. Asst. Prof. Pacif. Biomed. Res. Center, Kewalo Lab. * ARNOLD, J. M. Assoc. Prof. Cytol. * KANE, R. E. Prof., Asst. Dir. * HADFIELD, M. G. Asst. Prof. Cytol. Dept. of Zool. * HALEY, S. R. Asst. Prof. IDAHO (Ida.) Moscow, Univ. of Idaho, Coll. of Letters and Sci., Dept. of Biol. Sci. * ROBERTS, L. W. Prof, of Bot. ILLINOIS (111.) Argonne, Argonne Natl. Lab., Div. of Biol, and Med. Res. * TAHMISIAN, T. N. Chairman, Sr.Biol. * STERNER, Miss S. P. Assoc. Biol. Carbondale, South. Illinois Univ., Dept. of Physiol. * FOOTE, Mrs. F. MARTINDALE Chicago, Chicago Coll. of Osteopathy Dept. of Physiol, and Pharmacol. KELSO, A. F. Chairman Chicago, De Paul Univ. Dept. of Biol. Sci. * THOMMES, R. C. Prof., Chairman * McWHINNIE, Miss D. J. Asst. Prof. * WOODS, J. E. Asst. Prof. Chicago, Loyola Univ., Dept. of Biol. * GOLDIE, M. Asst. Prof. * SPIROFF, B. E. N. Asst. Prof. Dental School, Dept. of Histol. * VENEZIANO, P. P. Res. Assoc. Chicago, Rush Med. Coll., Dept. of Obstet. and Gynecol. * MISENHEIMER, H. R. Chicago, Univ. of Chicago, Div. of Biol. Sci., Dept. of Anat. * SINGER, R. Prof. * FISCHMAN, D. A. Assoc. Prof. * STEFFEK, A. J. Res. Assoc. * VERRUSIO, A. C. Res. Assoc. Dept. of Biol., Interdept. Training Program in Developm. Biol. MOSCONA, A. A. Prof., Program Dir. GOLDWASSER, E. Prof. PRICE, Miss. D. Prof. (Emer.) BAKER, W. K. Prof. COHEN, M. H. Prof. DORFMAN, A. Prof. FITCH, F. W. Prof. HASELKORN, R. Prof. KIRSTEN, W. H. Prof. MATHEWS, M. B. Prof. SHANKLIN, D. R. Prof. SWIFT, H. H. Prof. WOOL, I. G Prof. HUBBY, J. L. Assoc. Prof. OVERTON, Miss J. H. Assoc. Prof. ROWLEY, D. A. Assoc. Prof. * FISCHMAN, D. A. Asst. Prof. KOLLAR, E. Asst. Prof. GARBER (BILSKY), Mrs. B. B. Res. Assoc. MOSCONA, Mrs. M. H. Res. Assoc. MUNROE, M. H. Instr. Chicago, Univ. of Illinois, Coll. of Med., Dept. of Anat. * SCHMIDT, A. J. Prof. * MacRAE, Mrs. E. J. KRUGELIS Prof. * RAFFERTY, K. A., Jr. Prof. * MAIBENCO, Miss H. C. Prof. LaVELLE, A. Prof. * VAN ALTEN, P. J. Assoc. Prof. * LIEM, K. F. Assoc. Prof. * REYNOLDS (KING), Mrs. W. A. Assoc. Prof. * KERNIS, M. M. Asst. Prof. LaVELLE (WILSON). Mrs. F. W. Res. Assoc. Dept. of Biol. Sci. VAN VALEN, Mrs. Ph. Asst. Prof. Chicago, Wilbur Wright Coll., Dept. of Biol. * VENEZIANO, P. P. Assoc. Prof. DeKalb, North. Illinois Univ., Dept. of Biol. Sci. * NORSTOG, K. Prof. * PRAHLAD, K. V. Prof. * JOLLIE, M. T. Prof. * HANZELY, L. Asst. Prof. Evanston, Northwestern Univ., Dept. of Biol. Sci. * KING, R. C. Prof. Galesburg, Knox Coll., Dept. of Biol. Sci. * VOORHEES, F. R. Asst. Prof. Maywood, Stritch Sch. of Med. Dept. of Pediat. * SMITH, G. Prof., Dir. Sect, of Genet. 205 U.S.A. (111.) Normal, Illinois State Univ., Dept. of Biol. Sci. * SCHWALM, F. E. Asst. Prof. Urbana, Univ. of Illinois, Dept. of Botany * STEFFENSEN, D. M. Prof. Sch. of Life Sci., Dept. of Entomol. * HORSFALL, W. R. Prof. * WILLIS (HORWITZ), Mrs. J. Assoc. Prof. Dept. of Zool. ADAMSTONE, F. B. Prof. (Emer.) * WATTERSON, R. L. Prof. * NANNEY, D. L. Prof. * DAVENPORT, R. Assoc. Prof. * BROWN, E. H. Assoc. Prof. * WHITT, G. S. Asst. Prof. * STOCUM, D. L. Asst. Prof. * ROSALES RONQUILLO, Mrs. M. C. Res. Assoc. INDIANA (Ind.) Bloomington, Indiana Univ., Dept. of Zool. TORREY, T. W. Prof., Head BRIGGS, R. W. Prof. HUMPHREY, R. R. Prof. (Emer.) CROWELL, P. S. Prof. SCHAIBLE, R. H Crawfordsville, Wabash Coll., Dept. of Biol. * HEARSON, L. L. Assoc. Prof. Lafayette, Purdue Univ., Sch. of Agric, Dept. of Anim. Sci. ALLISTON, C. W. Assoc. Prof. Dept. of Biol. Sci. * ALTMAN, J. Prof. * JAFFE, L. F. Prof. * VANABLE, J. W., Jr. Assoc. Prof. * DAS, G. D. Assoc. Prof. * FORMAN, M. Asst. Prof. * SHAAYA, E. Notre Dame, Univ. of Notre Dame, Coll. of Sci., Dept. of Biol. * TWEEDELL, K. S. Prof., Dir. * BENDER, H. A. Prof. * CASSIDY, J. D. Asst. Prof. CRAIG G B. Terre Haute, Indiana State Univ., Dept. of Life Sci. * ALBRIGHT, J. F. IOWA (la.) Ames, Iowa State Univ., Dept. of Zool. and Entomol. * BAKER, J. R. Assoc. Prof. Iowa City, Univ. of Iowa, Coll. of Dent., Dept. of Oral Biol. * JACOBS, R. M. Prof., Head Coll. of Med., Dept. of Anat. OWERS, N. O. Asst. Prof. KOCHHAR, D. M. Asst. Prof. Coll. of Lib. Arts, Dept. of Zool. * KOLLROS, J. J. Prof., Chairman * BEAMS, H. W. Prof. * KESSEL, R. G Prof. * WILLIAMS, N. E. Prof. U.S.A. (Me.) * MILKMAN, R. D. Prof. * SPAZIANI, E. Prof. * FRANKEL, J. Prof. * MOHLER, J. D. Prof. * STAY, Miss B. Assoc. Prof. * SOLURSH, M. Asst. Prof. * TERMAN, St. A. Asst. Prof. * BOVBJERG (BLANCHARD), Mrs. A. M. Res. Assoc. KANSAS (Kans.) Lawrence, Univ. of Kansas, Dept. of Physiol, and Cell Biol. * WYTTENBACH, Ch. R. * BURCHILL, Br. R. Asst. Prof. KENTUCKY (Ky.) Lexington, Univ. of Kentucky, Med. Center, Dept. of Anat. * TRAURIG, H. H. Assoc. Prof. Dept. of Biochem. * BOLLUM, F. J. Prof. Dept. of Cell Biol. * DONNELLY, Miss G M. LOUISIANA (La.) Belle Chasse, Tulane Univ., Sch. of Med., Dept. of Anat., Lab. of Developm. Biol. * ROSE, S. M. Prof. * ROSE, Mrs. Fl. C. Res. Assoc. Covington, Tulane Univ., Delta Region. Prim. Res. Center, Dept. of Reprod. Physiol. * CLEWE, Th. H. * FRANKLIN, L. E. New Orleans, Louisiana State Univ., Med. Center, Anat. Dept. * GASSER, R. F. Assoc. Prof. * ALLEN, E. R. Dept. of Biol. Sci. * HEYN, A. N. J. Prof. New Orleans, Loyola Univ., Dept. of Biol. Sci. * LESSEPS, R. J. S.J. Asst. Prof. New Orleans, Tulane Univ., Dept of Biol. * VOLPE, E. P. Prof., Chairman * MIZELL, M. Prof. * ELLGAARD, E. G Asst. Prof. * RANGA RAO, K. Res. Assoc. MAINE (Me.) Bar Harbor, The Jackson Lab. GREEN, E. L. Dir. * HUMMEL, Miss K. P. Sen. Staff Scient. (Emer.) * GREEN, Mrs. M. C. Sen. Staff Scient. * STEVENS, L. C. Sen. Staff Scient. * WAYMOUTH, Miss C. Sen. Staff Scient. * WHITTEN, W. K. Sen. Staff Scient. * HOPPE, P. C. Assoc. Staff Scient. Brunswick, Bowdoin Coll., Dept. of Biol. * MOULTON, J. M. Prof., Chairman Orono, Univ. of Maine, Dept. of Zool. * MUN, A. M. Prof. HAYNES, J. F. 206 U.S.A. (Me.) U.S.A. Mass.) Walpole, Univ. of Maine, Ira C. Darling Center for Res., Teaching and Serv., Dept. of Oceanogr. * DEAN, D. Prof., Dir. & Acting Chairman * MAZURKIEWICZ, M. Asst. Prof. MARYLAND (Md.) Baltimore, Carnegie Inst, of Washington, Dept. of Embryol. * EBERT, J. D. Prof., Dir. * BROWN, D. D. Staff Member * DAWID, I. B. Staff Member * De HAAN, R. L. Staff Member * FAMBROUGH, D. M., Jr. Staff Member * RAMSEY, Miss E. M. Staff Member * REEDER, R. H. Staff Member * O'RAHILLY, R. Fellow * SUZUKI, Y. Fellow * ORR, C. W. Asst. Invest. * RASH, J. Asst. Invest. * CLASON, A. E. Fellow * LIZARDI, P. M. Fellow * SUGIMOTO, K. Fellow * HORAK, I. Fellow * WU, G.-J. Fellow * HONJO, T. Fellow Baltimore, Johns Hopkins Univ., Sch. of Hyg. and Publ. Health, Dept. of Popul. Dynamics * BIGGERS, J. D. Prof. * SCHUETZ, A. W. Asst. Prof. * STERN, S. Asst. Prof. * MARCUS, G. J. Asst. Prof. * KENNEDY, J. F. Asst. Prof. School of Med., Dept. of Obstet. and Gynecol. WHARTON, L. R., Jr. Asst. Prof. * KENNEDY, J. F. Asst. Prof. Dept. of Neurol. * DRACHMAN, D. B. Assoc. Prof. Dept. of Biol. * WILLIER, B. H. Prof. (Emer.) * EBERT, J. D. Hon. Prof. * DeHAAN, R. L. Hon. Assoc. Prof. * CEBRA, J. J. Prof. * SMITH, K. D. Asst. Prof. * BROWN, D. D. Hon. Asst. Prof. * SOFER, W. H. Postdoct. Fellow * EDIDIN, M. A. Asst. Prof. * ROTH, S. A. Asst. Prof. Dept. of Biophys. JACOBSON, M. Baltimore, Univ. of Maryland, Dent. Sch., Dept. of Histol. & Embryol. FISCHLSCHWEIGER, W. SISCA, R. Bcthesda, Natl. Inst, of Health, Inst, of Arthritis & Metab. Dis. * PARK, Miss H. D. Res. Biol. Natl. Cane. Inst., Lab. of Biol. ANDERSON, P. N. Res. Assoc. Inst, of Child Health & Human Developm., Lab. of Biomed. Sci. * ROBINSON, J. C. Chief Developm. Biol. Branch * PIATIGORSKY, J. Extramural Res. Programs * WATERMAN, A. J. Prof. Natl. Inst, of Dent. Res. HISAOKA, K. K. Dep. Assoc. Dir. * JOHNSTON, M. C. Visit. Scient. Developm. Genet. Sect. Natl. Eye Inst., Lab. of Vision Res. * COULOMBRE, A. J. Head * COULOMBRE (LACY), Mrs. J. L. * NEWSOME, D. A. Res. Assoc. College Park, Univ. of Maryland, Coll. of Arts & Sci., Dept. of Zool. * IMBERSKI, R. B. Asst. Prof. MASSACHUSETTS (Mass.) Amherst, Amherst Coll., Dept. of Biol. SCHOTTE, O. E. Prof. (Emer.) ELLIS, C. H., Jr. Asst. Prof. Amherst, Univ. of Massachusetts, Botany Dept. * SHAPIRO, S. Prof., Head Dept. of Forest, and Wildlife Biol. WETHERBEE, D. K. Assoc. Prof. Boston, Boston Univ., School of Med., Dept. of Anat. * PETERS, A. Prof., Chairman * IFFT, J. D. Assoc. Prof. * GRASSO, J. A. Assoc. Prof. * HINDS, J. W. Asst. Prof. * FELDMAN, M. L. Res. Assoc. Boston, Harvard Med. School, Dept. of Anat. * ZWAAN, J. Prof. * HAY, Miss E. D. Assoc. Prof. * BURNSIDE, Miss M. B. Children's Hosp. Med. Center * MANASEK, F. J. Instr. Anat. * ZWAAN, J. Prof. Dept. of Ophthalmol. Massachusetts Gen. Hosp., Developm. Biol. Lab. * TRELSTAD, R. L. Dept. of Neurol. * DeLONG, G. R. Asst. Prof. Dept. of Surg. * GRILLO, H. C. Assoc. Clin. Prof. New England Deaconess Hosp., Cane. Res. Inst., Dept. of Biol. Chem. KNOX, W. E. Res. Assoc. GREENGARD, O. Res. Assoc. Boston, Tufts Univ., Dept. of Anat. * HUCKINS, Miss C. Dept. of Physiol. * KETCHEL, M. M. Prof. HADDAD, V. Instr. Cambridge, Harvard Univ., Fac. of Arts & Sci., Dept. of Biol. HOADLEY. L. Prof. (Emer.) Cambridge, Mass. Inst, of Techn., Dept. of Biol. * BELL, E. Prof. * INGRAM, V. M. Prof. Biochem. BAGLIONI, C. PENMAN, S. GROSS, P. R. 207 U.S.A. (Mass.) Northampton, Smith Coll., Dept. of Biol. Sci. EDDS (LUCKENBILL), Mrs. L. M. Asst. Prof. Shrewsbury, Worcester Found, for Exp. Biol. CHANG, M. C. Sen. Scient. * HARPER, M. J. K. Sen. Scient. * HUNT, Miss D. M. Staff Scient. * GIBBONS, A. F. E. Res. Assoc. * KILLE, J. W. BARTKE, A. Postdoct. Fellow South Hadley, Mount Holyoke Coll., Dept. of Biol. Sci., Clapp Lab. * STEIN, Miss K. F. Prof. (Emer.) * KALTENBACH, Mrs. J. COUFFER Prof. * ESCHENBERG, Miss K. M. Prof. * De TOMA, F. J. Asst. Prof. Biochem. * HORTON, K. M. Asst. Prof. Waltham, Brandeis Univ., Grad. Sch. of Arts & Sci., Grad. Dept. of Biochem. LOOMIS, W. F. Prof. Dept. of Biol. * SUSSMAN, M. Prof. * SCHIFF, J. A. Prof. * KLEIN, A. O. Assoc. Prof., Chairman * FULTON, C. M. Assoc. Prof. * SUSSMAN, Mrs. R. B. ROTMAN Res. Assoc. Wellesley, Wellesley Coll., Dept. of Biol. Sci. PADYKULA, Miss H. A. Prof. GAUTHIER, Miss G. F. Asst. Prof. TAYLOR, Miss J. M. Woods Hole, Marine Biol. Lab. MARSLAND, D. A. Res. Prof. BARTH, L. G. Prof. BARTH, Mrs. L. J. MICHIGAN (Mich.) Ann Arbor, Univ. of Michigan, Med. Sch., Dept. of Anat. * PATTEN, B. M. Prof. (Emer.) * BURDI, A. R. Assoc. Prof. CONKLIN, J. L. Assoc. Prof. * CARLSON, B. M. Asst. Prof. BEAUDOIN, A. R. Center for Res. in Reprod. Biol., Dept. of Obstet. and Gynecol. * BEHRMAN, S. J. Prof.. Dir. * MENGE, A. C. Assoc. Prof. * NAKABAYASHI, N. T. Res. Assoc. Dept. of Zool. * KAUFMANN, B. P. Prof. (Emer.) * FRYE, B. E. Prof. * GAY, Miss H. Prof. * KEMP, N. E. Prof. * NACE, G. W. Prof. * RIZKI, T. M. Prof. * SHAPPIRIO, D. G. Prof. * GATHER, J. N. Assoc. Prof. * KLEINSMITH, L. J. Assoc. Prof. * BERNS, M. W. Asst. Prof. * RICHARDS, Mrs. C. M. Res. Assoc. Dept. of Botany * SUSSMAN, A. S. Prof. * NOODfiN, L. D. Assoc. Prof. U.S.A. (Mo.) * KAUFMAN, P. B. Assoc. Prof. * SONI, S. L. Postdoct. Fellow Detroit, Wayne State Univ., Sch. of Med., Dept. of Anat. * MEYER, D. B. * FRITTS (WILLIAMS). Mrs. M. L. * BOVING, B. G East Lansing, Michigan State Univ., Coll. of Human Med., Dept. of Anat. * WALKER, B. E. Prof., Chairman THOMAS, J. B. Assoc. Prof. Coll. of Nat. Sci., Dept. of Zool. * THORNTON, C. S. Prof., Chairman * SHAVER. J. R. Prof. * BAND, R. N. Prof. * RIVERA, Miss E. M. Assoc. Prof. * OZAKI, H. Assoc. Prof. * AGGARWAL, S. K. Assoc. Prof. * BARCH, Mrs. S. H. Res. Assoc. Dept. of Bot. and Plant Pathol. * CANTINO, E. C. MSU/AEC Plant Res. Lab. * LANG, A. Prof., Dir. Mt. Pleasant, Centr. Mich. Univ., Biol. Dept. * KOEHLER, L. D. Prof. Rochester, Oakland Univ., Dept. of Biol. Sci. * BUTTERWORTH, F. M. Assoc. Prof. * COLE, M. B., Jr. Asst. Prof. MINNESOTA (Minn.) Minneapolis, Univ. of Minnesota, Sch. of Dent., Div. of Oral Biol. * REDMAN, R. S. Assoc. Prof. Sch. of Med., Dept. of Anat. WELLS, L. J. Prof. HEGGESTAD, C. B. Assoc. Prof. SMITHBERG, M. Assoc. Prof. Dept. of Microbiol. * DWORKIN, M. Prof. Coll. of Biol. Sci., Dept. of Zool. * SPRATT, N. T., Jr. Prof. * McKINNELL, R. G. Prof. HUVER, C. W. Assoc. Prof. * KERR, N. S. Assoc. Prof. SHERIDAN, J. D. Asst. Prof. * GILBERTSON, D. E. Asst. Prof. Dept. of Botany STETLER, D. A. Asst. Prof. Northfield, Carleton Coll., Dept. of Biol. * SHOGER, R. L. Prof. St. Paul, Univ. of Minnesota, Dept. of Entomol., Fish. & Wildlife * BROOKS, Miss M. A. Assoc. Prof. MISSISSIPPI (Miss.) Jackson, Univ. of Mississippi, Med. Center, Dept. of Pharmacol. & Toxicol. * KLEIN, R. L. Prof. MISSOURI (Mo.) Columbia, Univ. of Missouri, Sch. of Med., Dept. of Anat. * LEESON, C. R. Prof., Chairman 208 U.S.A. (Mo.) U.S.A. (N.Y.) * DECKER, J. D. Assoc. Prof. St. Louis, Univ. of Missouri-St. Louis, Coll. of Arts & Sci., Biol. Dept. * DERBY, A. Asst. Prof. * FRIEDMAN, H. P. Asst. Prof. St. Louis, St. Louis Univ., Dept. of Biol. * MANNER, H. W. Prof. St. Louis, Washington Univ., Sch. of Med., Dept. of Anat. COWAN, W. M. Prof., Chairman KAHN, A. J. Prof. Dept. of Biol. * HAMBURGER, V. Prof. (Eraer.) * MOOG, Miss F. Prof. * LEVI-MONTALCINI, Miss R. Prof. KIRK, D. Assoc. Prof. MONTANA (Mont.) Bozeman, Montana State Univ., Dept. of Zool.-Entomol. * VISSCHER (NEUMANN), Mrs. S. Assoc. Prof. * DORGAN, W. J. Asst. Prof. * WESSEL (HARDERS), Mrs. M. Grad. Res. Asst. NEBRASKA (Neb.) Omaha, Creighton Univ., Sch. of Med., Dept. of Anat. * DOSSEL, W. E. Prof., Chairman * THOMAS, R. J. Dept. of Biol. * SCHLESINGER, A. B. Prof.. Chairman NICKLA. H. Asst. Prof. NEVADA (Nev.) Reno, Univ. of Nevada, Dept. of Biol. TIBBITTS, F. D. Assoc. Prof. NEW HAMPSHIRE (NH.) Durham, Univ. of New Hampshire, Biochem. Dept. * STEWART, J. A. Asst. Prof. Plant Sci. Dept. * LOY, J. B. Asst. Prof. Coll. of Lib. Arts, Dept. of Zool. * FORET. J. E. Asst. Prof. Hanover, Dartmouth Med. School, Dept. of Anat. * FERM, V. H. Prof. (Embryol.) * CARPENTER. S. J. Asst. Prof. Dept. of Pathol. * MARGOLIS, G. Prof. * MARIN-PADILLA, M. Assoc. Prof. * BRINCK-JOHNSEN, T. Assoc. Prof. * LAYTON, W. M. Assoc. Prof. * DE HOYOS, E. Asst. Prof. * FAULKNER, Ch. S. Asst. Prof. Hanover, Dartmouth Coll., Dept. of Biol. Sci. * BALLARD, W. W. Prof. * SPIEGEL. M. Prof. * DeMAGGIO, A. E. Prof. * ROOS, Th. B. Prof. * ANDERSON, J. J. Asst. Prof. * SPIEGEL, Mrs. E. SCLUFER NEW JERSEY (N.J.) East Orange, Upsala Coll., Biol. Dept. * HEIN, Miss R. R. Prof. Madison, Fairleigh Dickinson Univ., Biol. Dept. * FRANCOEUR, R. T. Assoc. Prof. Newark, Rutgers Univ., Coll. of Arts & Sci., Dept. of Zool. * WEIS (SHULMAN), Mrs. J. S. Assoc. Prof. MILLER, T. J. Asst. Prof. Coll. of Med. and Dent.. Dept. of Anat. * WEIS, P. Assoc. Prof. * HOLLINSHEAD, Mrs. M. B. Assoc. Prof. * GILANI, S. H. Asst. Prof. * GONA, A. G. Asst. Prof. Nudey, Hoffman-La Roche Inc., Res. Div., Dept. of Exp. Pathol, and Toxicol. * HOAR, R. M. Dir. Teratol. Sect. Nutley, Roche Inst, of Molec. Biol., Dept. of Cell Biol. * GAGE, L. P. Princeton, Princeton Univ., Dept. of Biol. * BONNER. J. T. Prof., Chairman * BUTLER, E. G Prof. (Emer.) * FANKHAUSER, G. Prof. (Emer.) * STEINBERG, M. S. Prof. * JACOBS, W. P. Prof. * MEINS, F., Jr. Asst. Prof. * SANDERS, T. G. Asst. Prof. * TOMPKINS. R. Asst. Prof. Rahway, Merck Inst, for Therap. Res., Dept. of Exp. Biol. * GWATKIN, R. B. L. Asst. Dir. * ANDERSEN, O. F. Res. Biol. Trenton, Rider Coll., Fac. of Lib. Arts & Sci., Dept. of Biol. * MAYER, T. C. Prof. NEW MEXICO (N.Mex.) Albuquerque, Univ. of Mexico, Sch. of Med., Dept. of Anat. * KELLEY, R. O. Asst. Prof. NEW YORK (N.Y.) Albany, State Univ. of New York, Dept. of Biol. Sci. * ALLEN, R. D. Prof., Chairman * SAUNDERS, J. W. Prof. * MASCARENHAS, J. P. Assoc. Prof. * RIKMENSPOEL, R. Assoc. Prof. * ROLLINS, E. A. Asst. Prof. * IZZARD, C. S. Asst. Prof. Albany, New York State Dept. of Health, Birth Defects Inst., Embryol. Lab. * SKALKO, R. G. Dir. Brockport, State Univ. Coll., Dept. of Biol. Sci. * THOMPSON, R. P. Assoc. Prof. 209 U.S.A. (N.Y.) U.S.A. (N.Y.) Buffalo, Roswell Park Mem. Inst. BRUNST, V. V. Sen. Cane. Res. Scient. Dept. of Exper. Pathol. * WEISS. L. Prof. * MASLOW, D. E. Cane. Res. Scient. Div. of Viral Oncol. * McGARRY, M. P. Sen. Cane. Res. Scient. Buffalo, State Univ. of New York, Dept. of Anat. * JONES, O. P. Prof., Head Fac. of Nat. Sci. & Math., Dept. of Biol. FLICKINGER, R. A. Prof. Ithaca, Cornell Univ., New York State Coll. of Agric, Dept. of Entomol. * KRAMER, J. P. Assoc. Prof. Dept. of Poultry Sci. * BLOOM, S. E. Asst. Prof. Lab. of Chem. Embryol. * ROMANOFF, A. L. Prof. (Emer.) New York State Col'i. of Vet. Med., Div. of Biol. Sci. ADELMANN, H. B. Prof. (Emer.) GILBERT, P. W. Prof. * WIMSATT, W. A. Prof. ANDERSON, J. M. Prof. Sect, of Genet., Developm. £> Physiol. * BLACKLER, A. W. Prof. Dept. of Anat., Dom. Anim. Embryo Slide Collect. * EVANS, H. E. Prof. * SACK, W. O. Assoc. Prof. Dept. of Large Anim. Med. * SCHRIJVER, H. F. Assoc. Prof. Dept. of Microbiol. * SCOTT, F. W. Asst. Prof. New York, Brooklyn Bot. Garden * CHENEY, R. H. Prof. (Emer.) Hon. Res. Assoc. New York, Brooklyn Coll., Dept. of Biol. * GABRIEL, M. L. Prof., Chairman * COLLIER, J. R. Prof. * MADERSON, P. F. A. Assoc. Prof. * SALTHE, S. N. Assoc. Prof. New York, City Univ. of New York, Dept. of Biol. HAMBURGH, M. Assoc. Prof. Hunter Coll., Dept. of Biol. Sci. * LYSER (SHOUBY), Mrs. K. M. Assoc. Prof. CECCARINI, C. Asst. Prof. Queens Coll., Dept. of Biol. * COLWIN, A. L. Prof. * COLWIN, Mrs. L. HUNTER Prof. New York, Columbia Univ., Coll. of Phys. & Surg., Dept. of Anat. SHEN, S. C. MURRAY, Mrs. M. R. Dept. of Ophthalmol. * HOLLYFIELD, J. G. Asst. Prof. Dept. of Radiol., Radiobiol. Res. Lab. RUGH, R. Assoc. Prof. New York, Columbia Univ., Manhattanville Inst., Dept. of Biophys. DAVID, G. B. Head New York, Cornell Univ. Med. Coll., Dept. of Anat. * SIRLIN, J. L. Assoc. Prof. * BENNETT, D. Assoc. Prof. Dept. of Pathol. HAGSTROM, J. W. C. Asst. Prof. GORHAM, L. W. Visit. Fellow New York, Long Island Univ., Richard L. Conolly Coll. BIEBER, S. New York, Mount Sinai Hosp., Ophthalmol. Dept. ZINN, K. M. New York, New York Blood Center, Dept. of Virol. * KAIGHN, M. E. Assoc. Invest. New York, New York Med. Coll. * GOLDBERG, S. Resident New York, New York Univ., Sch. of Med., Dept. of Otolaryngol. RUBEN, R. J. Asst. Prof. Washington Square Coll., Dept. of Biol. * BRICK, I. Assoc. Prof. New York, Rockefeller Univ., Lab. of Developm. Biol. WEISS, P. A. Prof. (Emer.) Popul. Counc, Bio-Med. Div. * SEGAL, S. J. Dir. * MIKAMO, K. Staff Scient. New York, State Univ. of New York, Downstate Med. Center, Dept. of Pathol. * HERMAN, L. Prof. * KAUFFMAN, Miss S. Prof. Dept. of Psychiatry * KURIYAMA, K. Prof. New York, Yeshiva Univ., Albert Einstein Coll. of Med., Dept. of Anat. * ETKIN, W. Res. Assoc, Prof. Dept. of Genet. * WAELSCH, Mrs. S. GLUECKSON Prof. * MOSER, Mrs. G. C. Assoc. * TRIGG, Miss M. J. Res. Assoc. Dept. of Physiol. * MORRILL, G. A. Assoc. Prof. * KOSTELLOW, Miss A. B. Asst. Prof. New York, Yeshiva Univ., Dept. of Biol. * WISCHNITZER, S. Prof. Oswego, State Univ. Coll., Div. of Arts & Sci., Dept. of Zool. * HARRISON, J. R. Prof., Chairman Dept. of Bot. and Physiol. SEAGO, J. L. Asst. Prof. Rochester, Univ. of Rochester, Coll. of Arts & Sci., Dept. of Biol. * HOLTFRETER, J. K. F. Prof. * CASPARI, E. W. Prof. EICHER, Miss E. M. Res. Assoc. Med. Center, Div. of Genet. * GATES, A. H., Jr. Dept. of Pediat., Genet., Radiat. Biol., and Biophys. * DOHERTY, R. A. Asst. Prof. Sch. of Med. & Dent., Dept. of Physiol. * LOCKSHIN, R. A. Asst. Prof. 210 U.S.A. (N.Y.) U.S.A. (Ohio) Schenectady, Union Coll., Dept. of Biol. Sci. * RAPPAPORT, R., Jr. Prof. * BUTZEL, H. M., Jr. Prof. * URBAN, P. Asst. Prof. Snyder, State Univ. of New York, Sch. of Dent., Dept. of Oral Biol. * MILLER, W. A. Assoc. Prof. Springville, Roswell Park Mem. Inst., Springville Labs., * CAIRNS, J. M. Assoc. Cane. Res. Scient. Stony Brook, State Univ. of New York, Dept. of Biol. Sci. * JONES, R. F. Chairman * LYMAN, H. Assoc. Prof. * FOWLER, J. A. Asst. Prof. Syracuse, State Univ. of New York, Upstate Med. Center, Dept. of Anat. * ARMSTRONG, P. B. Prof. * YNTEMA, C. L. Prof. * HAMMOND, W. S. Assoc. Prof. * MITCHELL, J. T. Asst. Prof. * AMES, I. H. Asst. Prof. * BENZO, C. A. Asst. Prof. Dept. of Urol. * ARGYRIS (FRANKENHUIS), Mrs. B. Assoc. Prof. Syracuse, Syracuse Univ., Dept. of Biol. * ARGYRIS, Th. S. Prof. * MILLER, J. H. Prof. Bot. * BRYAN, J. K. Assoc. Prof. * KERR, Miss M. S. Asst. Prof. * SULLIVAN, D. T. Asst. Prof. * TUPPER, J. T. Asst. Prof. Tarrytown, Marymount Coll., Dept. of Biol. * WOLSKY, A. Prof. Troy, Rensselaer Polytechn. Inst, Dept. of Biol. AUCLAIR, W. Assoc. Prof. NORTH CAROLINA (N.C) Burlington, Carolina Biol. Supply Co., Dept. of Cytogenet. & Developm. Biol. * KIRCHEN, R. V. Head Chapel Hill, Univ. of N. Carolina, Dept. of Bot. * SCOTT, T. K. Prof. Dept. of Zool. COSTELLO, D. P. Kenan Prof. LEHMAN, H. E. Prof. HENLEY, Miss C. Res. Assoc. Durham, Duke Univ., Med. Center, Dept. of Anat. * DUKE, K. L. Assoc. Prof. * JOHNSON, K. E. Asst. Prof. Dept. of Zool. GREGG, J. R. Prof. * COUNCE (NICKLAS), Mrs. S. J. Greenville, East Carolina Univ., Dept. of Biol. * LAWRENCE, I. E., Jr. Assoc. Prof. * SEHGAL, P. P. Div. of Med. Sci., Dept. of Anat. * SCHWEISTHAL, M. R. Prof. Raleigh, N. Carolina Dept. of Ment. Health, Dorothea Dix Hosp., Neuroembryol. Lab. * OPPENHEIM, R. Res. Scient. Div. of Res. * HARTH, M. S. Postdoct. Fellow Psychol. Lab. * GOTTLIEB, G. Res. Scient. Raleigh, N. Carolina State Univ., Fac. of Agric. and Life Sci., Dept. of Poultry Sci. * DONALDSON, W. E. Prof. Dept. of Anim. Sci. ULBERG, L. C. Prof. * ROBISON, O. W. Assoc. Prof. Dept. of Genet. * GROSCH. D. S. Dept. of Zool. LYTLE, Ch. F. Prof. Research Triangle Park, Natl. Inst, of Environm. Health Sci. * STAPLES, R. E. Sect. Head Growth Developm. * ELLIOTT, D. S. Sen. Staff Fellow * MAURER, R. R. Staff Fellow NORTH DAKOTA (N.D.) Fargo, State Univ. Station, USDA Metab. & Radiat. Res. Lab. * ADAMS, T. S. Res. Entomol. * LEOPOLD, R. A. Res. Entomol. OHIO Cincinnati, Univ. of Cincinnati, Children's Hosp. Res. Found., Div. of Teratol. WARKANY, J. Prof. * KALTER, H. Assoc. Prof. Cincinnati, Xavier Univ., Dept. of Biol. * PETERS, J. J. Prof. Cleveland, Case Western Reserve Univ., Sch. of Med., Dept. of Anat. * SINGER, M. Prof. * HUGHES, A. F. W. Prof. * CASTON, J. D. Assoc. Prof. * LOVE, D. S. Asst. Prof. Schools of Engin. and Med. Dept. of Biomed. Engin. * MACKLIN, M. R. Asst. Prof. Columbus, Ohio State Univ., Coll. of Agric, Dept. of Poultry Sci. * NABER, E. C. Prof. Coll. of Biol. Sci.. Dept. of Zool. * TASSAVA, R. A. * GRAY, Miss F. H. Coll. of Med., Dept. of Anat. * ACKERMAN, G. A. Prof. * HOSTETLER, J. R. Asst. Prof. * SUCHESTON, Mrs. M. E. Asst. Prof. * CANNON, M. S. Coll. of Vet. Med., Dept. of Anat. * VENZKE, W. G. Prof., Chairman Dayton, Wright State Univ., Div. of Sci. & Engin., Dept. of Biol. Sci. * HUBSCHMAN, J. H. Prof. * NUSSBAUM, N. S. Assoc. Prof. 211 U.S.A. (Ohio) U.S.A. (Pa. * FRITZ, H. I. Assoc. Prof. * SEIGER, M. B. Assoc. Prof. * HAY. R. J. Kent, Kent State Univ.. Dept. of Biol. Sci. * STEVENSON. J. ROSS Assoc. Prof. Oberlin, Oberlin Coll., Dept. of Biol. BRUMMETT, Miss A. R. Assoc. Prof. Toledo, Med. Coll. of Toledo, Dept. of Physiol. * BISHOP, D. W. Prof. * NELSON, L. Chairman Toledo, Univ. of Toledo, Dept. of Biol. LEE. H. H. Asst. Prof. Yellow Springs, Charles F. Kettering Res. Labs. * REPORTER, M. C. Invest. * MOLLENHAUER, H H. Invest. * PANNBACKER, R. G. Staff Scient. OKLAHOMA (Okla.) Norman, Univ. of Oklahoma, Coll. of Arts & Sci., Dept. of Zool. * GOFF, R. A. Prof. * SETO, F. Asst. Prof. * DILLARD, W. L. Asst. Prof. Oklahoma City, Univ. of Oklahoma, Med. Center, Dept. of Anat. Sci. * FELTS, W. Prof. Chairman * LHOTKA, J. F., Jr. Prof. * ALLISON, J. E. Prof. * COALSON. R. E. Assoc. Prof. * GUMBRECK, L. Assoc. Prof. * McCLURE, T. Asst. Prof. Stillwater, Oklahoma State Univ., Dept. of Zool. JONES, R. W. Prof. Head OREGON (Ore.) Corvallis, Oregon State Univ., Dept. of Bot. and Plant Pathol. * LEACH, C. M. Prof. * TRIONE, E. J. Assoc. Prof. * BRANDT, W. H. Assoc. Prof. * MAY CHING, T. Assoc. Prof. * QUATRANO, R. S. Asst. Prof. Fac. of Sci., Dept. of Biochem. & Biophys. * NEWBURGH, R. W. Prof., Chairman Dept. of Zool. * HARRIS (FELDMAN), Mrs. P. J. Assoc. Prof. Eugene, Univ. of Oregon, Coll. of Lib. Arts, Dept. of Biol. * POSTLETHWAIT, J. H. Asst. Prof. * WESTON, J. A. GRANT, Ph. Pordand, Reed College, Biol. Dept. * RUBEN. L. N. Prof. * DICKINSON, W. J. Asst. Prof. * KIDDER, G M. Postdoct. Fellow Pordand, Univ. of Oregon, Med. Sch., Anat. Dept. * GUNBERG, D. L. Prof. PENNSYLVANIA (Pa.) Bethlehem, Lehigh Univ. Coll. of Arts & Sci., Dept. of Biol. * CHENG, Th. C. Prof. PRITCHARD, H. N. Assoc. Prof. Bryn Mawr, Bryn Mawr Coll., Dept. of Biol. * OPPENHEIMER, Miss J. M. Prof. Chambersburg, Wilson Coll., Dept. of Biol. * MacDONALD, Mrs. E. L. Asst. Prof. Haverford, Haverford Coll., Dept. of Biol. LOEWY, A. G. Chairman FINGER, I. Assoc. Prof. KESSLER, D. Asst. Prof. GREEN, Mrs. E. UFFORD Res. Assoc. NACHMIAS, Mrs. V. THIMANN Res. Assoc. Hershey, Hershey Med. Center, Pennsylv. State Univ., Dept. of Pharmacol. * WILLIAMS, Miss G. H. Philadelphia, Am. Philos. Soc. CORNER, G. W. Prof. (Emer.) Philadelphia, Inst, for Cane. Res. * MINTZ, Miss B. Sen. Member * FREED, J. J. Assoc. Member * DE TERRA (WHITTAKER), Mrs. N. Asst. Member * MEZGER-FREED, Mrs. L. Asst. Member * NEMER, M. * MAHOWALD, A. P. Philadelphia, Jefferson Med. Coll., Stein Res. Center * JENSH, R. P. Asst. Prof. Philadelphia, Med. Coll. of Pennsylv., Dept. of Anat. * DiBERARDINO, Miss. M. A. Prof. * KULANGARA, A. C. Assoc. Prof. Philadelphia, Pennsylv. Coll. of Podiat. Med. * GIBLEY, C. W.( Jr. Acad. Dean Philadelphia, Temple Univ., Dept. of Biol. NIU, M. C. Prof. HILFER, S. R. Assoc. Prof. SEARLS, R. L. Assoc. Prof. * MILLER, R. L. Asst. Prof. Philadelphia, Univ. of Pennsylvania, Sch. of Dent. Med., Dept. of Histol. and Embryol. * WILDE, C. E., Jr. Prof. * HEROLD, R. C. Assoc. Prof. * PIDDINGTON, R. L. Asst. Prof. * LEVENSON, G. E. Asst. Prof. * TAYLOR, Miss E. L. Assoc., Postdoct. Fellow * MACARAK, E. J. Grad. Stud. SCHWARTZ, R. J. Grad. Stud. Grad. Sch. of Arts and Sci., Dept. of Biol. GREEN, P. B. Assoc. Prof. SATO, H. Assoc. Prof. * LEVENSON, G E. Asst. Prof. 212 U.S.A. (Pa. U.S.A. (Tenn.) * KVIST, T. N. * GRAVER, H. T. Sch. of Med., Dept. of Anat. HOLTZER, H. Prof. PIATT, J. Prof. LASH, J. W. Asst. Prof. * MINOR, R. R. Dept. of Obstet. and Gynecol. REYNOLDS, S. R. M. Prof. (Emer.) Dept. of Pediat. WILLIAMS, Mrs. M. LYMAN Asst. Prof. Sch. of Vet. Med., Dept. of Anim. Biol., * McDEVITT, D. S. Asst. Prof. Dept. of Anim. Biol., Lab. of Reprod. Physiol. * BRINSTER, R. L. Prof., Dir. * CROSS, M. H. Assoc. * CROSS (FIRMIN), Mrs. P. C. Assoc. Dept. of Pathol. * MINOR, R. R. Philadelphia, Wistar Inst, of Anat. and Biol. * WHITTAKER, J. R. Assoc. Pittsburgh, Allegheny Gen. Hosp., Cell and Radiat. Biol. Labs. * BRAVERMAN, M. H. Assoc. Pittsburgh, Carnegie-Mellon Univ. Dept. of Biol. SPRINGER, Ch. A. Pittsburgh, Mercy Hosp., Div. of Radiother., Oncol. Lab. * KATOH, A. K. Dir. * YOSHIDA, K. Postdoct. Fellow * SHAMOTO, M. Res. Assoc. Pittsburgh, Univ. of Pittsburgh, Fac. of Arts and Sci., Dept. of Biol. * PARTANEN, C. R. Prof. * CARELL. E. F. Assoc. Prof. * GOTTLIEB, F. J. Assoc. Prof. * SHOSTAK. S. Assoc. Prof. * MELTON, Ch. G., Jr. Asst. Prof. * SPECTOR, C. Asst. Prof. * GOLDSMITH, Miss M. Asst. Prof. Sch. of Dent. Med., Cleft Palate Center * DICKSON, D. ROSS Assoc. Prof. School of Med., Dept. of Anat. and Cell Biol. LANSING, A. I. Chairman * CAUNA, N. Prof. * WIDNELL, Ch. C. Assoc. Prof. * CAVE, M. D. Asst. Prof. DOYLE, D. J. Asst. Prof. HAYES, R. Asst. Prof. Swarthmore * BERRILL, N. J. University Park, Pennsylvania State Univ., Coll. of Agric, Dept. of Poultry Sci. * BUSS, E. G. Prof., Chairman Grad. Sch. Interdept. Program Genet. Coll. of Sci., Dept. of Biol. * DALTON, H. C. Prof. * HIBBARD, E. Assoc. Prof. Wilkes-Barre, Wilkes Coll., Dept. of Biol. * OGREN. R. E. RHODE ISLAND (R.I.) Providence, Brown Univ., Div. of Biol, and Med. Sci. * CHASE, H. B. Prof. * GOSS, R. J. Prof. EDDS, M. V., Jr. Prof. * QUEVEDO, W. C, Jr. Assoc. Prof. * COLEMAN, J. R. Assoc. Prof. * HOLOWINSKY, A. W. Assoc. Prof. * KIMMEL, D. L., Jr. Asst. Prof. * DINSMORE, Ch. E. Grad. Stud. SOUTH CAROLINA (S.C.) Charleston, Med. Univ. of S. Carolina, Coll. of Med., Anat. Dept. * ADAMS SMITH, W. N. Assoc. Prof. * MARKWALD, R. R. Asst. Prof. Clemson, Clemson Univ., Coll. of Agric, Poultry Sci. Dept. * BOONE, M. A. Prof. Dept. of Zool. * BACHOP, W. E. Asst. Prof. TENNESSEE (Tenn.) Knoxville, Univ. of Tennessee, Dept. of Zool. and Entomol. * FRASER, R. C. Prof. * COULSON, Mrs. P. B. Res. Asst. Memphis, Southwestern at Memphis, Dept. of Biol. * AMY, R. L. Prof. * WARREN, Ch. O. Assoc. Prof. Memphis, Univ. of Tennessee, Coll. of Basic Med. Sci.. Dept. of Anat. * ROBERTSON, G. G. Prof. * COHN, S. A. Prof. * CORLISS, C. E. Assoc. Prof. * FITZGERALD, L. R. Assoc. Prof. * FEDINEC, A. A. Assoc. Prof. * LONGO, F. J. Asst. Prof. Div. of Dermatol, Dept. of Med. & Veterans Adm. Hosp., Dept. of Anat. * HASHIMOTO, K. Prof. Nashville, Vanderbilt Univ., Sch. of Med., Dept. of Obstet. and Gynecol. GLASSER. S. R. Assoc. Prof. SOUPART, P. Assoc. Prof. ORGEBIN (CRIST), Mrs. M. C. Asst. Prof. Dept. of Biochem. COHEN, S. Oak Ridge, Oak Ridge Natl. Lab., Biol. Div. * YAMADA, T. Prof. * SKINNER, D. M. Prof. BORSTEL, R. C. von * DUMONT. J. N. * MAKINODAN, T. * MILLER, O. L., Jr. PAPACONSTANTINOU, J. POPP, R. A. * WALLACE, R. A. * REESE, D. H. Grad. Stud. * GRAHAM, D. E. * CONNELLY, T. G. Postdoct. Fellow 213 U.S.A. (Tex.) U.S.A. (Wash. TEXAS (Tex.) Austin, Univ. of Texas, Botany Dept. BLOCH, D. P. Prof. Grad. Sch.. Cell Res. Inst. WHALEY, W. G. Prof., Dir. BLOCH, D. P. Prof. DAUWALDER (RICHARDS), Mrs. M. Res. Scient. LEFFINGWELL, T. P. Res. Scient. KEPHART, Miss J. E. Res. Assoc. Dept. of Zool. * FORREST, H. S. Prof. * JACOBSON, A. G. Prof. * PA VAN, C. Prof. HAMILTON, T. H. Prof. * BARTH, R. R, Jr. Assoc. Prof. * FULLILOVE, Miss S. L. Res. Assoc. Galveston, Univ. of Texas, Med. Branch, Dept. of Anat. * HILD, W. J. Prof., Chairman * DUNCAN, D. Prof. (Emer.) * SINCLAIR, J. G. Prof. (Emer.) * BLOUNT, R. F. Prof. * KISCHER, C. WARD Assoc. Prof. * ROSS, L. M. Asst. Prof. Houston, Baylor Univ., Coll. of Med., Dept. of Anat. ZIMMERMAN, A. A. Prof. (Emer.) Houston, Rice Univ., Dept. of Biol. * SUBTELNY, S. Prof. * ANSEVIN (DABROWSKA), Mrs. K. Assoc. Prof. Houston, Univ. of Texas, Dent. Branch, Dept. of Anat. * TAYLOR, A. C. Prof. (Histol.) Med. Sch., Sect, of Neurobiol. * WOOD, J. G. Prof., Head San Antonio, Southwest Found, for Res. and Educ, Div. of Biol., Growth, and Developm. AXELROD, L. R. Dir. HENDRICKX, A. G. Chief Sect. Embryol. San Antonio, Univ. of Texas, Med. Sch., Dept. of Anat. * McNUTT, C. W. Prof. * BURTON, A. L. Assoc. Prof. * CAMERON, I. L. Assoc. Prof. * DUNG, H. C. Instr. UTAH Logan, Utah State Univ., Vet. Dept. * SHUPE, J. L. Prof. VERMONT (Vt.) Burlington, Univ. of Vermont, Coll. of Med., Dept. of Anat. * WEIDMAN, Th. A. Dept. of Zool. GLADE, R. W. Prof., Chairman LANDESMAN, R. Asst. Prof. Middlebury, Middlebury Coll., Dept. of Biol. * GREENWOOD, M. S. Asst. Prof. VIRGINIA (Va.) Charlottesville, Univ. of Virginia, School of Med., Dept. of Anat. * LANGMAN, J. Prof., Chairman * DECK, J. D. Assoc. Prof. * FLICKINGER, C. J. Assoc. Prof. * KEEFE, J. R. Asst. Prof. Biochem. Dept. BRADBUR, C. Asst. Prof. Div. of Reprod. Biol., Dept. of Obstet. and Gynecol. * HAMNER, Ch. E. Dir. * Mclaughlin, k. c. Dept. of Biol. * BODENSTEIN. D. Prof., Chairman * DENT, J. N. Prof. * HAMILTON, H. L. Prof. KONIGSBERG, I. R. Prof. * WRIGHT, Th. R. F. Assoc. Prof. * DIEHL, F. A. Asst. Prof. * SWANSON, R. F. Asst. Prof. * PHILLIPS, H. M. Asst. Prof. Richmond, Univ. of Richmond, Dept. of Biol. * REAMS, W. M., Jr. Prof. Williamsburg, Coll. of William & Mary, Dept. of Biol. * BLACK, R. E. Prof. WASHINGTON (Wash.) Nahcotta, Univ. of Washington, Dept. of Zool., Field Lab. * TARTAR, V. Prof. Pullman, Wash. State Univ., Coll. of Agric, Dept. of Anim. Sci. * KOSIN, I. L. Prof. * KONISHI, T. Res. Assoc. Dept. of Chem. BROSEMER, R. W. Assoc. Prof. Coll. of Sci. & Arts, Dept. of Zool. * SCHROEDER, P. C Asst. Prof. Program in Gen. Biol. * HINDMAN, J. L. Prof. Seattle, Univ. of Washington, Sch. of Dent., Dept. of Oral Biol. * STERN, I. B. Prof. * TAMARIN, A. Assoc. Prof. * GORDON, H. P. Asst. Prof. Sch. of Med., Dept. of Biomed. Hist. * BODEMER, C. W. Dept. of Biol. Struct. BOYDEN, E. A. Prof. (Emer.) Dept. of Pediat., Centr. Lab. for Human Embryol. * SHEPARD, T. H. Prof., Dir. * OAKLEY, G. P. Sen. Fellow * BARGMAN, G * FANTEL, A. Predoct. Fellow Dept. of Pathol. * MOTTET, N. K. Prof. Dept. of Nuclear Engin. * ROBKIN, M. Assoc. Prof. Dept. of Zool. WHITELEY, A. H. Prof. CAHN, R. D. * CALARCO (GILLAM), Mrs. P. D. Asst. Prof. 214 U.S.A. (Wash.) Brazil * LAIRD, C. D. Coll. of Fish. Lab. of Radiat. Ecol. * WELANDER, A. D. Prof. * WADLEY, G. W. Res. Asst. WEST VIRGINIA (W.Va.) Morgantown, West Virginia Univ., KIMMEL, D. L. Prof., Chairman * REYER, R. W. Prof. * McCAFFERTY, R. E. Assoc. Prof. * BERESFORD, W. A. Assoc. Prof. Dept. of Biol. * NORMAN, C. Prof. WISCONSIN (Wis.) Madison, Univ. of Wisconsin, Bardeen Med. Labs., Dept. of Anat. SLAUTTERBACK, D. B. Prof., Chairman * MOSSMAN, H. W. Prof. (Emer.) * ANDERSON, J. W. Prof. * MARTIN, A. H. Asst. Prof. * FALLON, J. F. Asst. Prof. * ORSINI, Mrs. M. W. G. Asst. Prof. * BARR, H. J. Asst. Prof. McArdle Lab. for Cane. Res. RUSCH, H. P. Prof., Dir. MUELLER, G. C. Prof. TEMIN, H. M. Prof. Dept. of Neurol. * KORNGUTH, S. E. Assoc. Prof. Dept. of Physiol. Chem. Prof., Chairman Prof. Assoc. Prof. Asst. Prof. Prof. * COHEN, Ph. P. * SALLACH, H. J. * KORNGUTH, S. E. Dept. of Radiol. YATVIN, M. B. Dept. of Zool. AUERBACH, R * LILIEN, J. E. Asst. Prof. Milwaukee, Marquette Univ., Sch. of Med., Dept. of Physiol. RIECK, A. F. Assoc. Prof. Dept. of Biol. * RASCH (MYRBERG), Mrs. E. M. Prof. * MILLINGTON, W. F. Prof. * KRISHNAKUMARAN, A. Assoc. Prof. * HENNEN, Miss S. Asst. Prof. Med. Coll. of Wisconsin, Dept. of Anat. * KAPLAN, S. Asst. Prof. Milwaukee, Univ. of Wisconsin, Dept. of Zool. WARNER, E. D. Prof., Chairman PRESS, N. Assoc. Prof. WYOMING (Wyo.) Laramie, Univ. of Wyoming, Dept. of Zool. -Physiol. * ATHERTON, R. W. Asst. Prof. MEXICO Mexico D.F., Ciudad Univ., Inst, de Biol, de la U.N.A.M. SAMANO BISHOP, Miss. A. SOUTH AMERICA ARGENTINA Buenos Aires, Fac. de Med., Inst, de Anat. Gen. y Embriol. * ADLER, R. * TEITELMAN de PINCZUK, Mrs. G N. * SUBURO, Miss A. M. Cordoba, Univ. Nac. de Cordoba, Inst, de Biol. Celular * DE FABRO, Miss S. P. Prof. La Plata, Univ. Nac. de La Plata, Fac. de Cienc. Med., Inst, de Embriol., Biol, e Histol. * ECHAVE LLANOS, J. M. Prof., Dir. * GOMEZ DUMM, C. L. Prof. Adj. * BADRAN, A. F. Jefe de Seccion * RESTELLI, M. A. Jefe de Seccion * NASH de PINJOSOVSKY, Mrs. R. E. Jefe de Seccion Rosario, Univ. Nac. de Rosario Fac. de Cienc. Med. Dept. de Histol. y Embriol. * PEDERNERA, E. A. Invest. Tucuman, Univ. Nac. de Tucuman, Fac. de Bioquim., Quim. y Farm., Inst, de Biol. * BARBIERI, F. D. Prof., Dir. * LEGNAME, A. H. Asst. Prof. * LEGNAME, C. R. Asst. Prof. * BRAUCKMANN, Miss E. S. Asst. Prof. * SALOMON de LEGNAME, Mrs. H. Instr. * VALDEZ de MORENO, Mrs. C. L. Instr. * RAISMAN, J. S. Instr. * DEL RIO, A. G. Instr. * BUDEGUER de ATENOR, Mrs. M. S. Instr. * MARIANO, Miss M. I. Instr. * OTERINO, Miss J. M. Instr. * FERNANDEZ, Miss S. N. Asst. * MICELI, Miss D. C. Asst. * WASSERMAN de CUNIO, Mrs. R. Asst. * CABADA, M. O. Guest worker * SANCHEZ, Miss S. S. Guest worker * SANCHEZ RIERA, Miss A. N. Guest worker BRAZIL Belo Horizonte, Fed. Univ. of Minas Gerais, Inst, of Biol. Sci., Dept. of Gen. Biol. * SCHREIBER, G. Prof., Chief * MELUCCI CAVENAGHI, Mrs. T. M. C. Asst. Prof. * SALLES, J. M. de Res. Asst. 215 Brazil India * FALLIERJ. L. A. Res. Asst. * SANT'ANA. Miss Y. X. Res. Asst. * LAVALLE, D. Res. Asst. * REZENDE, Miss E. S. Res. Asst. Dept. of Zool. GERKEN, Miss S. E. Res. Asst. Ribeirao Preto, Univ. de Sao Paulo, Fac. de Med., Dept. de Morfol. Hum. Func. e Aplic. LISON, L. Prof., Head CRUZ, A. R. Docent AZOUBEL, R. Asst. Prof. IUCIF, S. Asst. Prof. Dept. of Genet. KERR, W. E. Prof., Head ZUCCHI, R. Asst. Prof. Fac. de Filos. Cienc. e Let., Dept. de Biol. ROSA, C. F. A. ALVES, M. A. R. Instr. Sao Paulo, Univ. de Sao Paulo, Fac. de Med., Dept. of Anat, Sect, of Neuroanat. * ERHART, E. A. Prof. CHILE Santiago, Univ. de Chile, Fac. de Med., Inst, de Biol. ,Juan Noe", BANDINEZ, O. Prof. LEMUS, D. Asst. URUGUAY Montevideo, Univ. de Repiibl., Fac. de Med., Inst, de Neurol. * GARCIA AUSTT, E. Assoc. Prof., Head * VANZULLI, Mrs. A. * FASANELLO de BUSTOS, Mrs. L. VENEZUELA Merida, Univ. de Los Andes, Med. Fac, Dept. of Embryol. * KLEISS, E. Prof., Head * CARMONA de UZCATEGUI, Mrs. M. L. Assoc. Prof. * HERNANDEZ de BARRIOS, Mrs. C. E. Asst. Prof. * DURAN de LOPEZ, Mrs. L. Asst. Prof . * PORRAS de CARRERO, Mrs. I. Instr. ASIA CEYLON Colombo, Univ. of Ceylon, Fac. of Sci., Dept. of Zool. * SATHANANTHAN, A. H. Lect. Nugegoda, Vidyodaya Univ., Fac. of Sci., Dept. of Biol. Sci. * WAIDYASEKERA, P. L. D. Lect. (Zool.) CHINA Peking, Acad. Sinica, Inst, of Zool. CHANG, Ch. Y. TUNG, T. C. Shanghai, Acad. Sinica, Inst, of Exper. Biol. PAI, S. Dir. CHUANG HSIAO HUI Res. Fellow FORMOSA (see TAIWAN) INDIA Allahabad, Llniv. of Allahabad, M.L.N. Med. Coll.. Dept. of Obstet. & Gynecol. * BAVEJA, Miss R. Lect. Fac. of Sci., Dept. of Biochem. * PANT, Mrs. R. Reader * NAUTIYAL, G. Ch. Res. Scholar * DUBEY (TIWARI), Mrs. R. * SHARMA, K. K. Res. Scholar * SINGH, J. B. Res. Scholar Baroda, M.S. Univ. of Baroda, Fac. of Sci., Dept. of Zool. * SHAH, R. V. Prof. * BONNY PILO Lect. * ASNANI, Miss M. Asst. Lect. * HIRADHAR, P. Asst. Lect. * RAMACHANDRAN, A. V. Asst. Lect. * RADHAKRISHNAN, N. Asst. Lect * GOPINATH, G. M. Asst. Lect. Calcutta, Presidency Coll., Dept. of Zool. MOOKERJEE, S. Prof., Head Chandigarh, Post-Grad. Inst, of Med. Educ. & Res., Dept. of Anat. * JIT, I. Prof., Head Darjeeling, N. Bengal Univ., Darjeeling Governm. Coll., Dept. of Zool. DASGUPTA, B. Prof. Delhi, Univ. of Delhi, Dept. of Zool. * PRASAD. M. R. N. Prof. * RAO, K. V. Gorakhpur, Univ. of Gorakhpur, Fac. of Sci., Zool. Dept. CHAUDHRY, H. S. Prof., Head SWARUP, K. Lect. PANDEY. K. Lect. NARAIN (GUPTA), Mrs. B. Sen. Res. Fellow KHARE, M. K. Lect. HAIDER, M. H. Res. Scholar GUPTA, P. C. Res. Scholar Jaipur, Univ. of Rajasthan, Dept. of Zool. * NIAZI, I. A. Lect. Jorhat, Tea Res. Assoc, Tocklai Exp. Stat., Entomol. Dept. * BANERJEE, B. Head Kanpur, Kanpur Univ., G.S.V.M. Med. Coll., Dept. of Anat. * VARMA, H. C. Prof., Head Lucknow, Univ. of Lucknow, Dept. of Zool. TANDAN, B. K. Reader 216 India Japan Ludhiana, Punjab Agric. Univ., Dept. of Zool. * GURAYA. S. S. Prof. Madras, Pachaiyappa's Coll., Dept. of Bot. * LAKSHMANAN, K. K. Prof. Madurai, Madurai Univ., Fac. of Sci., Dept. of Biol. Sci. * MUTHUKKARUPPAN, V. Reader Nagpur, Med. Coll., Dept. of Anat. * DUBEY, P. N. Prof., Head * NAVAGIRI, Mrs. S. S. Reader * PATIL, T. L. Reader * QUADEER, A. Lect. * SATHE, V. M. Lect. Nagpur, Nagpur Univ., Post-Grad. Dept. of Zool. BELSARE, D. K. Lect. DORLE, A. K. New Delhi, All India Inst, of Med. Sci., Dr. Rajendra Prasad Center for Ophthalmol. Sci. AGARWAL, L. P. ANGRA, S. K. Pondicherry, Jawaharlal Inst., Dept. of Anat. * BHARGAVA, I. Prof., Head * MITRA, S. C. Asst. Prof. * BALAKRISHNAN, S. Prof. Pediat. * CHAKRAVARTI, Mrs. A. Asst. Prof. Obstet. & Gynecol. * PURI, R. K. Med. Off. (Pediat.) * LAKSHMANAN, S. Demonstr. * POURANY, Miss R. Demonstr. Poona, N. Wadia Coll., Dept. of Zool., Cell Res. Lab. * LOBO, J. F. Demonstr. * JOSHI, P. V. Demonstr. CHITNIS, P. S. Demonstr. Poona, Univ. of Poona, Dept. of Botany * MENEZES, Miss A. M. C. Fac. of Sci., Zool. Dept. * MULHERKAR, Mrs. L. Prof., Head Rohtak, Med. Coll., Dept. of Anat. * SINGH, I. Prof. Udaipur, Univ. of Udaipur, Dept. of Zool. VARMA, Miss S. K. INDONESIA Bandung, Bandung Inst, of Technol., Dept. of Chem. & Biol., Sect. Biol. * SUDARWATI, Miss S. ISRAEL Jerusalem, Hebrew Univ. Hadassah Med. Sch., Dept. of Anat. GITLIN, G. Assoc. Prof. Dept. of Entomol. * SHULOV, A. Prof., Head * PENER, M. P. Lect. * BLONDHEIM, Mrs. S. A. Asst. Inst, of Life Sci., Lab. of Genet. * FRIEDLANDER, M. Lect. Dept. of Physiol. BEN-OR (MILSTEIN), Mrs. S. Lect. Dept. of Zool. HAAS, G. Prof., Head * EYAL (GILADI). Mrs. H. Prof. * WERNER, Y. L. Sen. Lect. ESHEL, Mrs. Sh. * KOCHAV, Sh. Asst. * KARLIN, Miss D. * WOLK, M. * FAINSTAIN (HAMERMAN), Mrs. N. Asst * AZAR, Mrs. I. Asst. Petah-Tikva, Endocrinol. Unit of the Rogoff-Wellcome Med. Res. Inst. * BER, A. Prof., Head * SINGER-ALTBEKER, Mrs. R. Asst. Ramat Gan, Bar-Ilan Univ., Dept. of Life Sci. * STERN, K. Prof. Rehovoth, Hebrew Univ., Fac. of Agric, Dept. of Entomol. * LENSKY, Y. Sen. Lect. Rehovoth, Weizmann Inst, of Sci., Dept. of Biodynamics * TSAFRIRI, A. Dept. of Cell Biol. FELDMAN, M. YAFFE, D. Dept. of Plant Genet. * GALUN, E. Head Fac. of Med., Dept. of Embryol. & Teratol. NEBEL, L. A. Assoc. Prof., Head ABRAMOVICI, A. Lect. ORNOY, A. Instr. KASPI (VISHNIVETSKI), Mrs. Th. Asst LONDON, J. Res. Asst. Tel-Aviv, Tel-Aviv Univ., Fac. of Sci., Dept. of Zool. * BYTINSKY-SALZ, H. Prof. * KOCHVA, E. Assoc. Prof. * KRAICER, P. F. Assoc. Prof. * MOAV, B. Lect. * AVIVI, Y. Asst. * SHAHAM, Y. Asst. * FRENKEL, G. Asst. * SHALGI (HARSINA), Mrs. R. Teaching Asst. JAPAN Akkeshi, Hokkaido Univ., Fac. of Sci., Mar. Biol. Stat. KANOH, Y. Prof. Chiba, Natl. Inst, of Anim. Ind. * SUGIE, T. Res. Staff Lab. Fertil. * SOMA, T. Res. Staff Lab. Fertil. * IRIE, R. Res. Staff Lab. Microbiol. * FUKUMITSU, S. Res. Staff Lab. Fertil. * SUGA, T. Res. Staff Lab. Fern. Reprod. Chiba, Natl. Inst, of Radiol. Sci., Div. of Biol. * ASAMI, K. Res. Off. * ETOH, H. Sci. Off. * HYODO (TAGUCHI), Mrs. Y. Sci. Off. * IWASAKI, Miss T. Res. Off. * NAKAZAWA, T. Res. Off. * TAGUCHI, Sh. Chief of Lab. 217 Japan Japan * YAMADA, T. Res. Off. * YAMAGUCHI. T. Chief of Lab. * YUKAWA, O. Res. Off. Div. of Radiat. Hazards * MURAMATSU, S. Res. Off. * TAMANOI, I. Res. Off. Chikugo, Kyushu Natl. Agric. Exp. Stat. Dept. of Plant Pathol. & Entomol. * KISIMOTO, R. Res. Entomol. * MOCHIDA, O. Res. Entomol. Fukuoka, Kyushu Univ., Fac. of Agric, Zool. Lab. * UCHIDA, T. A. Asst. Prof. Fac. of Med., Dept. of Anat. YAMAMOTO, T. Prof. HATAE, T. Res. Assoc. Fac. of Sci., Dept. of Biol. * KAWAKAMI, I. Prof. * YAMANA, K. Assoc. Prof. * IYEIRI, Mrs. S. Lect. * SASAKI, N. Lect. Gifu, Gifu Coll. of Dent., Lab. of Biol. * AMANUMA, A. Hakodate, Hokkaido Univ., Fac. of Fish., Dept. of Biol. * YAMAMOTO, K. Prof. TAKAHASHI, H. Lab. of Physiol, and Ecol. * YAMADA, J. Prof. Hirakata, Kansai Med. Sch., Biol. Lab. * IKUSHIMA, N. Hirakata, Osaka Dent. Coll., Biol. Lab. * TAKEUCHI, H. Asst. Prof. Hirosaki'City, Hirosaki Univ., Fac. of Med., Dept. of Anat. * YAMADORI, T. Prof. Hiroshima, Hiroshima Univ.. Fac. of Sci., Lab. of Amph. Biol. * KAWAMURA, T. Prof. * KATASHIMA, R. Lect. * NISHIOKA, Miss M. Lect. Hiroshima, Hiroshima Woman's Coll., Biol. Lab. NADAMITSU, S. Prof. Kagosbima, Kagoshima Univ., Fac. of Med., Dept. of Anat. * NOTO, T. Lib. Arts Coll., Biol. Lab. * KUBOTA, T. Prof. Kanazawa, Univ. of Kanazawa, Fac. of Sci., Biol. Inst. * KIDO. T. Prof. * KISHIDA, Y. Asst. Prof. * ASAKURA, K. Res. Asst. * FUKE. M. Res. Asst. * OHSAKI, K. Res. Asst. Kobe, Kobe Univ. Sch. of Med., Dept. of Anat., Div. I * TAKEDA, H. Prof., Dir. * NAKAMURA, K. Assoc. Prof. Kobe, Konan Univ., Fac. of Sci., Dept. of Biol. TAKAYA, H. Prof. KAJI, S. Prof. MASUDA, H. Asst. Prof. WATANABfi, T. Kyoto, Doshisha Univ., Biol. Lab. * AMANO, H. Prof. * KOBAYASHI, N. Asst. Prof. Kyoto, Kyoto Pref. Univ. of Med., 2nd Dept. of Anat. * YASUDA, M. Kyoto, Kyoto Univ., Fac. of Med., Dept. of Anat. * NISHIMURA, H. Prof. * TAKANO, K. Assoc. Prof. * TANIMURA, T. Lect. * TANAKA, O. Fac. Asst. * YASUDA, Y. Fac. Asst. * SEMBA, R. Res. Assoc. Fac. of Sci., Dept. of Bot. * BABA, S. Lect. Fac. of Sci., Inst, for Biophys. & Molec. Biol., Lab. for Cell Sci. * OKADA, T. S. Prof. * EGUCHI, G. Assoc. Prof. * TAKEICHI, M. Asst. * OKAMOTO, M. Asst. * FUJISAWA, H. * TAKAHASHI, K. Zool. Inst., Lab. of Developm. Biol. * HAGIWARA, A. Asst. Prof. * ISHIZAKI, H. Asst. Maebashi, Gunma Univ., Inst, of Endocrinol., Dept. of Comp. Endocrinol. * HANAOKA, Y. Asst. Prof. Matsumoto, Shinshu Univ., Sch. of Med., Dept. of Anat. * NAGATA, T. Assoc. Prof. Matsuyama, Ehime Univ., Biol. Inst. * SAW ADA, N. Prof. * NODA, Y. D. Assoc. Prof. Misaki, Univ. of Tokyo, Fac. of Sci., Mar. Biol. Stat. * HIRAMOTO, Y. Assoc. Prof. Misima, Natl. Inst, of Genet., Dept. of Morphol. Genet. * KURODA, Y. Head Lab. Mito, Ibaraki Univ., Fac. of Sci., Dept. of Biol. * YAJIMA, H. Asst. Prof. Morioka, Iwate Univ., Fac. of Agric, Inst, of Appl. Entomol. * MIYA, K. Prof. * KURIHARA, M. Instr. Nagasaki, Nagasaki Univ., Fish. Exp. Station DOTSU, Y. Dir. * NATSUKARI, Y. Res. Off. Dept. of Aquatic Biol. * TAKITA, T. Res. Assoc Sch. of Med., Dept. of Genet. * SHIOMI, T. Prof. * YOSHIKAWA, I. Res. Asst. Third Dept. of Anat. * SETOGUTI, T. Prof. Nagoya, Nagoya Univ., Sch. of Med., Dept. of Orthop. Surg. * NOGAMI, H. 218 Japan Japan Res. Inst, of Environm. Med., Dept. of Developm. Pathol. * MURAKAMI. U. Prof. * KAMEYAMA, Y. Asst. Prof. * HOSHINO, K. Instr. * HAYASHI, Y. Instr. * INOUE. M. Res. Assoc. Fac. of Sci., Biol. Inst. SATO, T. Prof. (Emer.) FUKUDA, S. Prof. (Dir.) YAMAMOTO, T. Prof. HAMA, T. Prof. NAKANO, E. Lect. KAJISHIMA, T. Asst. Prof. HISHIDA, T. Asst. AKETA, K. Asst. TAKATA, K. Asst. TOMITA, H. Fac. of Sci., Inst, of Molec. Biol. * MIKI-NOUMURA, Mrs. T. Asst. Prof. Nagoya, Women's Coll. of Tokai-Gakuen. Lab. of Biol. * HASEGAWA, M. Prof. Nara, Nara Women's Univ., Fac. of Sci., Biol. Inst. * ARIMA, Sh. Prof. Niigata, Niigata Univ., Fac. of Agric, Dept. of Biochem. & Technol. of Anim. Prod. NONAMI, Y. Sch. of Med., Dept. of Hyg. and Prevent. Med. * ENDO, A. Assoc. * SHIMADA, T. Assoc. Fac. of Sci., Biol. Inst. * IWASAWA, H. Asst. Prof. Nishinomiya, Kwansei Gakuin Univ., Fac. of Sci., Dept. of Biol. * OJIMA, Y. Prof. Osaka, Kozu High School, Biol. Lab. * HASHIMOTO, K. Osaka, Osaka Christian Coll., * SUGINO, H. Prof. Osaka, Osaka City Univ., Fac. of Sci., Lab. of Embryol. * ASA YAM A, S. Prof. (Emer.) * KOTANI, M. Asst. * FURUSAWA, M. Asst. * DAN (SOHKAWA), Mrs. M. Asst. * TANABE, K. Postgrad. Stud. Osaka, Osaka Kyoiku Univ. Dept. of Biol. * NAKAMURA, O. Prof. * TAHARA, Y. Asst. Prof. * KATO, K.-I. Asst. Prof. * TAKASAKI, Mrs. H. Asst. * OKUNO, Y. Asst. Osaka, Osaka Univ., Coll. of Gen. Educ, Dept. of Biol. * IMAHORI, K. Prof. * KOSHIDA, Y. Asst. Prof. * IWASA, K. Asst. Prof. * MAEDA (KIBATA), Mrs. M. Asst. * KONDO, Miss N. Grad. Stud. Res. Inst, for Infect. Dis. * WATANABE, K. Sapporo, Sapporo Med. Coll., Dept. of Biol. FUJII, R. Prof. Sapporo, Hokkaido Univ., Fac. of Sci., Chromos. Res. Unit * MAKINO, S. Prof. (Emer.) * SASAKI, M. Prof. * TAKAGI, N. Res. Assoc. Zool. Inst. * AOTO, T. Prof. * YAMAMOTO, T. S. Asst. Prof. * IWATA, F. Asst. Prof. * KATAGIRI, Ch. Asst. Prof. * WAKAHARA, M. Asst. Fac. of Vet. Med., Dept. of Obstet. * ISHIKAWA, T. Prof. * TIBA, T. Asst. Sendai, Tohoku Univ., Inst, of Biol., Lab. of Embryol. MOTOMURA, I. Prof., Dir. Toba, Nagoya Univ., Sugashima Mar. Biol. Stat. * SUGIYAMA, M. Prof., Dir. * ISHIKAWA, M. Assoc. Prof. * KOJIMA, M. K. Res. Assoc. * TSUKAHARA, J. Res. Assoc. Tokushima, Tokushima Univ., Sch. of Med., Dept. of Anat. * Sh. DAIKOKU, Prof., Dir. Dept. of Surg. * TAKITA, S. Prof., Dir. Tokyo, Japan Women's Univ., Dept. of Biol. * KOBAYASI, H. Prof. Tokyo, Natl. Cane. Center Res. Inst., Div. of Endocrinol. * NOUMURA, T. Sen. Scient. Tokyo, Natl. Sci. Museum, Div. of Zool. OKADA, Y. K. Prof. (Emer.) TOMODA, Y. Cur. Fish. Tokyo, Nihon Univ., Fac. of Med., Anat. Inst. * NAKAYAMA, T. Tokyo, Nippon Med. School, Dept. of Anat. * NAKAMURA, I. Prof. Dept. of Biochem. * SHUKUYA, R. Prof., Chairman * KAJITA, A. Asst. Prof. * TORII, Miss K. Asst. * NAGANO, H. Asst. Tokyo, Ochanomizu Univ., Fac. of Sci., Dept. of Biol. * DAN, Mrs. J. C. Lect. Tokyo, St. Paul's Univ., Coll. of Gen. Educ, Biol. Lab. * ODA, S. Prof. Tokyo, Tokyo Kyoiku Univ., Fac. of Sci., Inst, of Zool. * OKA, H. Prof. (Emer.) * HAYASHI, Y. Prof. * SEKIGUCHI, K. Asst. Prof. * WATANABE, H. Asst. Prof. * OKADA, M. Asst. * TANAKA, K. Asst. * HIRABAYASHI, T. Asst. 219 Japan Tokyo, Tokyo Med. 6 Dent. Univ. Fac. of Med., Dept. of Anat. * NIIZIMA, M. Prof. * KATO. M. Asst. Prof. * ITO. R. Instr. * KOYAMA, T. Sen. Lect. * DAIMON, T. Instr. Tokyo, Tokyo Metropolitan Univ., DAN, K. Prof., President Fac. of Sci., Dept. of Biol, Embryol. Sect. * YANAGISAWA, T. Prof. * OKAZAKI, Miss K. Assoc. Prof. * ISONO, N. Instr. * IKEDA, Miss M. YAZAKI, Miss I. Instr. * SAWAI, T. Grad. Stud. * KANKI, T. Grad. Stud. * UEMURA, I. Grad. Stud. * NISHIZU, K. Grad. Stud. * MATSUNAGA, Miss Y. Grad. Stud. * OHASHI, Miss S. Grad. Stud. Tokyo, Univ. of Tokyo, Fac. of Sci., Dept. of Biophys. & Biochem. * SAKAI, H. Assoc. Prof. * MANO, Y. Assoc. Prof. * KIMURA, I. Asst. Prof. * KONDO, K. Grad. Stud. Zool. Inst. * FUJII, T. Prof. (Emer.) * TERAYAMA, H. Prof. * EGAMI, N. Prof. * MIZUNO, T. Assoc. Prof. * YAMAGAMI, K. Asst. Prof. * KINOSHITA, S. Asst. Prof. Ocean Res. Inst., Lab. of Physiol. * KANATANI, H. Assoc. Prof. * SHIRAI, Miss H. Res. Assoc. Tokyo, Waseda Univ., Sch. of Educ, Biol. Lab. NUMANOI, H. Prof. Towada-shi, Kitasato Univ., Coll. of Vet. & Anim. Sci. ONUMA, H. Toyama, Toyama Univ., Fac. of Lit. & Sci., Biol. Inst. * HORI, R. Asst. Prof. Tsu, Mie Pref. Univ., Sch. of Med., Dept. of Anat. * MIKAMI, Y. Prof. * OHASHI, T. Asst. Prof. * NAGAE, H. Lect. Fac. of Fish., Hamajima Mar. Biol. Stat. Australia (N.S.W.) * OOISHI. Miss S. Lect. * IZAWA, K. Asst. Yokohama-Hiyoshi, Keio Univ., Dept. of Biol. * MORI, Y. Prof., Head * MORI, H. Prof. * ENDO, Y. Prof. * KATAKURA, Y. Lect. * OBIKA, M. Asst. Prof. * MATSUMOTO, J. Asst. Prof. Yokohama, Tsurumi Women's Univ., Sch. of Dent, Dept. of Biol. * WATANABE, K. Prof. LEBANON Beirut, Amer. Univ. of Beirut, Fac. of Arts & Sci., Biol. Dept. * BUTROS, J. M. Prof. PAKISTAN Karachi, Univ. of Karachi, Sch. of Parasitol., Dept. of Zool. * BILQEES, Mrs. F. MUJIB Asst. Prof. Rabwah, Talim-Ul-Islam Coll., Dept. of Zool. * KHAN, M. S. Lect. TAIWAN (Formosa) Taipei, Natl. Defense Med. Center, Dept. of Biomorph. * LIANG, H. M. Prof., Head * HSU (LIANG), Mrs. C. Y. Prof. * YU (KOU), Mrs. N. W. Lect. Taipei, Natl. Taiwan Univ. Dept. of Zool. * KING, Mrs. D. WEI Prof. TURKEY Ankara, Ankara Univ., Vet. Fac, Inst, of Histol. & Embryol. EVREN, A. Ankara, Hacettepe Univ., Med. Fac, Inst, of Histol. 6 Embryol. * KERSE (BUYUKOZER), Mrs. I. Prof., Head * UYSAL, M. * sEFTALIOGLU. Miss A. * MEMIKOCLU (G5NENC), Mrs. A. Biol. Inst. ■ f GOLDHOR, Miss S. Visit. Asst. Prof. Erzurum, Atatiirk Univ., Med. Fac, Inst, of Histol. 6 Embryol. AYKAC I. Prof. AUSTRALIA AUSTRALIA AUSTRALIAN CAPITAL TERRITORY (A.C.T.) Canberra, Austr. Natl. Univ., Sch. of Gen. Studies, Zool. Dept. * TYNDALE-BISCOE. C. H. Reader * JANSSENS, P. A. Sen. Lect. * HOWELL, M. J. Lect. * RENFREE, Miss M. B. Postgrad. Stud. NEW SOUTH WALES (N.S.W.) Armidale, Univ. of New England, Sch. of Rural Sci., Dept. of Agric Biol. CLAXTON. J. H. Lect. Fac. of Sci., Dept. of Zool. OFARRELL, A. F. Prof. STOCK, A. Prof. GILES, E. T. Assoc. Prof. DE BAVAY, J. M. Lect. 220 Australia (N.S.W.) Belgium Kensington, Univ. of New South Wales, Sch. of Anat. BLUNT, M. J. Prof. O'BRIEN, B. R. A. Assoc. Prof. Parramatta, C.S.I.R.O., Div. of Anim. Physiol., Ian Clunies Ross Anim. Res. Lab. Mcdonald, i. w. Chief * ALEXANDER, G. Sen. Princ. Res. Scient. * BRADEN, A. W. H. Sen. Princ. Res. Scient. * LYNE, A. G. Princ. Res. Scient. Sydney, Univ. of Sydney, Dept. of Histol. and Embryol. * SULLIVAN, G. E. Sen. Lect. Sch. of Biol. Sci., Zool. Bldg. STEPHENSON, N. G. Assoc. Prof. * ANDERSON, D. T. Reader * MORRIS, Miss V. B. Dept. of Vet. Anat. * BRYDEN, M. M. QUEENSLAND (Qld.) Indooroopilly, C.S.I. R.O., Div. of Entomol., Long Pocket Labs. ROULSTON, W. J. Townsville, James Cook Univ., Sch. of Biol. Sci., Depts. of Mar. Sci., Botany, & "Zool. * BURDON-JONES, C. Prof. Dept. of Zool. * LUCAS, J. S. Lect. SOUTH AUSTRALIA (S.A.) Adelaide, Univ. of Adelaide, Dept. of Anat. & Histol. * VAN DETH, J. H. M. G. Reader * PACKER, A. D. Reader Bedford Park, Flinders Univ., Sch. of Biol. Sci. * ZUST. Miss B. VICTORIA (Vict.) Clayton, Monash Univ., Dept. of Physiol. * WESTERMAN, R. A. Sen. Lect. * MARK, R. F. Reader * CRAGG, B. G. Sen. Lect. Parkville, Univ. of Melbourne, School of Anat. * LAVARACK, J. O. Reader * STRATFORD (MILLER), Mrs. B. F. Sen. Lect, WESTERN AUSTRALIA (W.Austr.) Nedlands, Univ. of W. Australia, Fac. of Sci., Zool. Dept. SHIELD, J. W. Sen. Lect. ARNOLD, Miss J. M. Sen. Demonstr. NEW ZEALAND Christchurch, Univ. of Canterbury, Dept. of Zool. * STOUT, V. M. Sen. Lect. * BENZIE-BURROWS, Mrs. V. L. Lect. Dunedin, Univ. of Otago, Dept. of Zool. * PILKINGTON, J. B. Lect. EUROPE AUSTRIA Graz, Zool. Inst, der Univ. * FACHBACH, G Asst. Salzburg, Univ. Salzburg, Lehrkanzel f. Genet, u. Entw. biol. * CZIHAK, G Prof. Wien, Univ. Wien, Med. Fac, Hyg. Inst. * FLAMM, H. Prof., Dir. Inst, fur Krebsforsch. * WRBA, H. Prof. Dir. * KRATOCHWIL, K. * WIEST, Miss L. BELGIUM Antwerpen, State Univ. Center, Fac. of Sci., Lab. of Anat. & Embryol. * VAKAET, L. C. A. Prof. * CALLEBAUT, M. Asst. Bruxelles, Univ. Libr, de Bruxelles, Fac. de Med., Inst. d'Anat., Lab. d'Embryol. * DALCQ, A. M. Prof. (Emer.) * PASTEELS, J. J. Prof. * MULNARD, J. G. Prof. * MILAIRE, J. Prof. * POURTOIS, M. Lie. es Sci. Dent. * LETOUR, Mrs. M. Fac. des Sci., Lab. de Biol. Anim. et Histol. Comp. HERLANT (MEEWIS), Mrs. H. Prof. Inst, de Zool. Torley-Rousseau BRIEN, P. Prof. Dir. Bruxelles (see also Rhode-St.'Genese) Gent, Univ. of Gent, Fac. of Med., Lab. of Anat. * FAUTREZ, J. C. Prof., Dir. * FAUTREZ (FIRLEFYN), Mrs. N. J. * ROELS, F. First Asst. * DE MAEYER-CRIEL. Mrs. G Asst. Dept. of Obstet. & Gynecol. * THIERY, M. Prof., Head DEROM, R. M. J. Lect. Dept. of Ophthalmol. FRANCOIS, J. Prof., Head MATTON (VAN LEUVEN), Mrs. M. D. Res. Assoc. Liege, Univ. de Liege, Fac. de Med., Lab. d'Anat. Pathol. FIRKET, H. Prof. REZNIK, M. First Asst. Lab. de Biochim. * DENIS, H. A. Agr. * MAIRY, Mrs. M. Aspir. FNRS * WEGNEZ, M. 221 Belgium Denmark Louvain, Inst, de Zool., Lab. d'Embryol. VANDEBROEK, G. Prof., Dir. Mol, Centre d'Etude De l'Energie Nucl., Dept. de Radiobiol. * LEDOUX, L. (Lab. de Biochim. Cell.) * LEONARD, A. (Lab. de Genet.) * LURQUIN, P. F. J. Res. Worker Rhode-St.'Genese, Univ. Libre de Bruxelles, Fac. des Sci., Lab. de Cytol. et Embryol. Molec. * BRACHET, J. L. A. Prof., Dir. * FICQ, Mrs. A. A. Assoc. Prof. * BALTUS, Miss E. J. * TENCER, Miss R. Chef de Trav. * HANOCQ (QUERTIER), Mrs. J. A. * VAN GANSEN (RASMONT), Mrs. P. Chargee de Cours * DECROLY (BRIERS), Mrs. M. Asst. * HANOCQ, Miss F. A. Asst. * GEUSKENS, M. * MALPOIX (HIGGINS), Mrs. P. M. * ALEXANDRE, H. L. * THOMAS, Ch. BULGARIA Sofia, Bulg. Acad, of Sci. Inst, of Zool. BOSCHKOW, D. K. Res. worker CZECHOSLOVAKIA Brno, Czechoslov. Acad, of Sci., Inst, of Vert. Zool., Dept. of Morphol. * STERBA, O. Head * KRAL, B. Res. worker * HRABE, V. Res. worker Hradec Kralove, Charles Univ., Med. Fac, Dept. of Biol. BARTOS, F. Assoc. Prof. PUZA, V. Asst. Prof. SRB, V. Asst. Lect. HROCH, M. Asst. Lect. GAYER, J. Scient. worker Kosice, Vet. -Med. Fak., Anat. Inst. POPESKO, P. Prof. Dir. * RAJTOVA, Miss V. Asst. * JANTOSOVICOVA. Mrs. J. Asst. Plzeri, Charles Univ., Fac. of Med. Inst, of Histol. & Embryol. SLAB?, O. Prof., Dir. * MATEJKA, M. Doc. * SLIPKA, J. Doc. * KOCOVA (PECHACKOVA), Mrs. J. Asst. Inst, of Pathophysio!. MYSLIVECEK, J. Prof., Head. SOBOTKA, P. Asst. Prof. HASSMANNOVA, Miss J. Scient. worker * ROKYTA, R. Asst. CHALOUPKA, Z. Asst. ZAHLAVA, J. Asst. Praha, Charles Univ., Med. Fac, Dept. of Anat. * DOSKOCIL, M. Prof. * PUZANOVA, Mrs. L. Assoc. Prof. * LEMEZ, L. Doc. * CIHAK, R. Doc. * SEICHERT. V. Asst. * DYLEVSK?. I. Asst. * GRIM, M. Asst. * MRAZKOVA (SEVC1KOVA), Mrs. O. Asst. Inst, of Embryol. * VACEK, Z. Prof., Dir. * KRAUS, R. Asst. Prof. * MARTINEK, J. Asst. * JIRSOVA, Miss Z. * SEVCENKO, Mrs. G. Asst. * HACH P Asst. * BRICHOVA (MOLLEROVA), Mrs. H. Asst. Fac. of Gen. Med., Inst, of Physiol. Lab. of Embryophysiol. * SEDLACEK, J. Asst. Prof. * ST ASTN?, F. Asst. Fac. of Sci., Dept. of Exp. Zool. * SLADECEK, F. Prof., Dir. * ROMANOVSK?, A. Assoc. Prof. * NEDVIDEK, J. Sen. Asst. * VILIMKOVA-HABROVA, Mrs. V. Sen. Asst. * MACHA, J. Asst. * PALECEK, J. Asst. Praha, Czechoslov. Acad, of Sci., Inst, of Biol., Dept. of Exp. Biol. & Genet. HASEK, M. Dir. Inst, of Entomol., Dept. of Developm. Morphol. MASNER, P. Scient. worker Dept. of Exp. Teratol., Lab. of Plastic Surg. * JELINEK, R. * DOSTAL, M. Asst. Dept. of Physiol. NOVAK, V. J. A. Head SLAMA, K. Res. Assoc. SEHNAL, F. Res. worker Praha, Inst, for the Care of Mother and Child, Embryol. Lab. JIRASEK, J. E. Chief CAPKOVA (HRUBA), Mrs. A. DENMARK Arhus, Royal Dent. Coll., Dept. of Anat. * KNUDSEN, P. A. Prof., Head * BUGGE, J. Lect. * JOSEPHSEN, K. Lect. Copenhagen, Carlsberg Found., Biol. Inst. ZEUTHEN, E. Prof., Dir. * HAMBURGER, Mrs. K. Asst. * NILSSON, Mrs. J. R. Res. Asst. * ANDERSEN, H. A. Res. Fellow Physiol. Dept. HOLTER, H. Copenhagen, Finsen Inst. * PETERS, Mrs. H. Head of Dept. * BYSKOV (SJOLTE), Mrs. A. G. Copenhagen, Univ. of Copenhagen, Fac. of Med., Anat. Dept. C * MOE, H. Prof. 222 Denmark France Dept. of Biochem. B * WESTERGAARD, O. Inst, of Comp. Anat. WINGSTRAND, K. G. Prof. NORREVANG, A. Asst. Lect. BRESCIANI, J. Asst. Inst, of Gen. Zool. * PEDERSEN, K. J. Lect. Copenhagen, State Vet. Serum Lab. * BLOM, E. Head of Dept. Copenhagen * BRONDSTED, H. V. Prof. (Emer.) Helsingor, Mar. Biol. Lab. * NIELSEN. CI. Dir. Odense, Odense Univ. Dept. of Molec. Biol. PLESNER. P. Prof. FINLAND Helsinki, Univ. of Helsinki, Children's Hosp. * RAPOLA, M. H. J. Chief. Pathol. III. Dept. of Pathol., Lab. of Exp. Embryol. * SAX£N, L. O. Prof. * JAASKELAINEN, Mrs. M. * WARTIOVAARA, J. J. * LAHTI, A. * KAITILA, I. Dept. of Zool. * PANELIUS, S. Res. worker Dept. of Zool., Lab. of Exp. Embryol. * TOIVONEN, S. I. Prof. * KUUSI, Miss T. K. Lect. * LEIKOLA, A. H. A. * KOSKIMIES, O. J. Res. Asst. Jyvaskyla, Univ. of Jyvaskyla Inst, of Biol. * ROSTEDT, Miss I. B. Turku, Univ. of Turku, Dept. of Botany * KALLIO, P. Dept. of Forensic Med. * RAEKALLIO, J. Prof., Chairman * MAKINEN (L5NNBERG), Mrs. P.-L. Res. Assoc. * KARKOLA, K. Res. Assoc. FRANCE Arcachon, Univ. Bordeaux I, Inst, de Biol. Marine * CAZAUX, CI. Maitre-Asst. Aubiere, Univ. de Clermont, Lab. de Biol. Anim. * LUTZ, H. Prof., Dir. * LUTZ (OSTERTAG), Mrs. Y. Maitre de Rech. * HUBERT, J. Att. de Rech. * COLLIN, J.-P. Maitre Asst. FARGEIX, N. Maitre Asst. * DAVID (BOGLI), Mrs. D. Att. du C.N.R.S. * BRUEL, Mrs. M. Th. Asst. * MEINIEL, R. Att. du C.N.R.S. * MEINIEL, Mrs. A. Asst. Azay-le-Ferron, Univ. de Tours, Fond. Hersent-Luzarche, Centre de Biol. * BERTON, J. P. * BERTON, Mrs. F. Banyuls-sur-Mer, Univ. de Paris, Lab. Arago * MARTHY, H.-J. Att. de Rech. CNRS * BOLETZKY, S. von Att. de Rech. CNRS Besancon, Univ. de Besancon, Fac. des Sci., Lab. de Zool. * GOMOT, L. Prof. * GUYARD, A. Asst. * PROPPER, A. Asst. * BRIDE (VUILLET), Mrs. M. Maitre Asst. * BRIDE, Miss J. Att. de Rech. CNRS * GRIFFOND (ROGNON), Mrs. B. Att. de Rech. CNRS * MARCHAND, C. R. Asst. * DERAY, A. Stag. CNRS Bordeaux, Univ. de Bordeaux II, Lab. de Biol, et d'Histol. * STOLL, R. Prof., Dir. * MARAUD, R. Prof. * FAUCOUNAU, Mrs. N. Asst. Bordeaux (see also Arcachon, Talence) Caen, Univ. de Caen, Unite de Sci., Lab. d'Embryol. * SIGNORET, J. Prof. * SAUSSEY, M. Maitre de Conf. * MARTIN, R. P. Asst. * NAMUR, Miss P. Asst. * MOUTON, Miss C. Asst. * LEFRESNE, J. Collab. Techn. CNRS Clermont-Ferrand, Fac. de Med., Lab. d'Histol. -Embryol. * TURCHINI, J. P. Prof. * MALET, P. Maitre de Conf. * POURHADI, R. Asst. * NUGEYRE, P. Asst. Clermont-Ferrand (see also Aubiere) Creteil, Fac. de Med., Dept. d'Histol.-Embryol. * CHEVREAU, J. P. Prof. Evreux, Centre Hosp. Region., Dept. of Pathol., Central Lab. * GAILLARD, J. A. Chief Gif-sur-Yvette, C.N.R.S. Lab. de Genet. Evolut. CHARNIAUX (COTTON), Mrs. H. Prof. BERREUR (BONNENFANT), Mrs. J. Chargee de Rech. GINSBURGER-VOGEL, T. Maitre Asst. FRIED (MONTAUFIER), Mrs. M. C. Cherch. libre ZERBIB, Ch. Asst. Grenoble, Univ. Scient. et Med., Inst, de Rech. Biol., Lab. de Zool. * SENGEL, Ph. Prof. * KIENY, Mrs. M. A. SENGEL Maitre de Rech. CNRS * CHIBON, P. Maitre de Conf. * BERNARD, F. Maitre-Asst. * BULLIfiRE. D. Maitre-Asst. 223 France France * MANDARON, P. M. Maitre-Asst. * MAUGER (GIRARD), Mrs. A. Maitre-Asst. * BOUVET. J. L. Maitre-Asst. * GEORGES, Miss D. Maitre-Asst. * CHEVALLIER, A. D. Asst. * DHOUAILLY, Miss D. Asst. * PAUTOU (MERIC), Mrs. M. P. Asst. * SAXOD, R. Maitre-Asst. THEVENET, Miss A. Asst. * BULLIERE (CHALLANDE), Mrs. F. Asst. * ROUX, J. P. * NOVEL, G. * BRUGAL, G. J. Y. * DOURNON. C. A. E. * SPINELLI, Miss M. M. G. Cherch. libre Jouy-en-Josas, C.N.R.Z., I.N.R.A., Stat. Centr. de Physiol. Anim. * TORRES (WINTERBERGER), Mrs. S. Maitre de Rech. Lille (see Villeneuve) Lyon (see Villeurbanne) Marseille, Univ. de Provence, Lab. de Morphogenet. Anim. * CHANDEBOIS, Miss R. Prof. * REYNAUD, G. R. Maitre-Asst. * COULOMB-GAY, Mrs. R. Maitre-Asst. * HOARAU, F. Asst. * CORNEC, J. P. Asst. * HIRN, M. Asst. * SOLBANI, Mrs. L. Asst. Lab. de Biol. Gen. ABELOOS, M. Prof., Dir. Lab. de Botanique * NEVILLE, P. A. J. Maitre de Conf. * AFZAL, Miss Z. Cherch. * WOLTZ, Ph. Maitre-Asst. Montpellicr, Univ. des Sci. et Techn., Lab. de Physiol, des Invert. * VERNET (CORNUBERT), Mrs. G. M. Prof. Lab. de Zool. II, (Morphol. et Ecol.) * LEGENDRE, R. Prof. * BONS, J. Dir. Ecole Pratique des Hautes Etudes * EMERIT, M. Maitre-Asst. * CASSAGNE-MfiJEAN. Mrs. F. Maitre-Asst. Montpellicr, Univ. de Montpellier, Fac. de Med., Lab. d'Anat. * BOSSY, J. G. M. Prof. Lab. d'Histol. SENTEIN, P. Prof. SANCHEZ (TEFF), Mrs. S. Charg. de Rech. CNRS HUMEAU, C. Asst. TEMPLE, D. Asst. Fac. des Sci., Lab. de Neurophysiol. * MARTY, R. J. L. Mont Saint Aignan, Univ. de Rouen, Fac. des Sci., Lab. de Physiol. Anim. * REBER (PELLE), Mrs. A. Asst. Moulis, Lab. Souterrain du C.N.R.S. * JUBERTHIE, C. J. Maitre de Rech. * JUBERTHIE (JUPEAU), Mrs. L. Chargee de Rech. * DURAND, J. P. Att. de Rech. ROUCH, R. Att. de Rech. * LESCHER-MOUTOUE, Miss. F. Att. de Rech. Nancy, Univ. de Nancy I, U.E.R. de Sci. Med., Lab. d'Embryol. et de Biol. Med. * DOLLANDER, A. Prof. * GRIGNON, G. Prof. * IVANOFF, Miss A. Asst. * MALAPRADE, Miss D. Coll. tech. * CURY, G. Charge de Rech. CNRS * HATIER (AUTELIN), Mrs. R. Att. de Rech. CNRS * GUEDENET, J. C. Ing. CNRS * BODELET, B. Asst. U.E.R. Physique Chim. Biol., Lab. de Zool. * STEPHAN, F. Prof. * STEPHAN (DUBOIS), Mrs. F. Maitre de Rech. * PIHAN, J. C. Maitre-Asst. * SCHILT, J. Asst. * BAUTZ (PORTMANN), Mrs. A. M. Asst. * LANOT, R. Att. de Rech. Nantes, Univ. de Nantes, Fac. des Sci., Lab. d'Embryol. * LE DOUARIN (CHAUVAC). Mrs. N. M. Prof., Dir. * HOUSSAINT, Miss E. Asst. * LELIEVRE, Miss C S. Att. de Rech. Lab. de Physiol. Anim. et Cell. LE DOUARIN, G. H. Dir. Nogent'sur'Marne, C.N.R.S. Inst. d'Embryol. Exp. * WOLFF, Et. C. Prof., Dir. * WOLFF (HENNIG), Mrs. Em. Dir. de Rech. * BEAUPAIN (CREPY), Mrs. D. Chargee de Rech. * BEAUPAIN, R. Att. de Rech. * BENOIT, J. A. A. Sous-Dir. de l'Inst. de Rech. * CROISILLE, Y. Sous-Dir. du Lab. * CUMINGE, Miss D. Asst. de Rech. * DAMERON, Miss F. Chargee de Rech. * DESVEAUX-CHABROL, Mrs. J. Biol. * DIETERLEN (LIEVRE), Mrs. F. Chargee de Rech. * DUBOIS, R. Sous-Dir. du Lab. * FEDECKA (BRUNER), Mrs. B. Chargee de Rech. * GASC, J. M. Asst. * GUMPEL (PINOT), Mrs. M. Chargee de Rech. * LAZARD (HAUBEN), Mrs. L. Chargee de Rech. * MARIN (LEWIN), Mrs. L. Chargee de Rech. * MARTIN (FORGET), Mrs. C. S. Biol. * PAGEOT (SIMPSON), Mrs. P. * POURREAU (SCHNEIDER), Mrs. N. M. Chargee de Rech. * REYSS-BRION (DUCREAU), Mrs. M. Chargee de Rech. * SALAUN, Miss J. Chargee de Rech. 224 France France * SALZGEBER, Miss B. Maltre de Rech. * SCHEIB (PFLEGER), Mrs. D. Maitre de Rech. * SIGOT, M. Maitre-Asst. * SIGOT (LUIZARD), Mrs. M. F. Chargee de Rech. * SORIANO, L. I. Charge de Rech. * SMITH, E. J. C. Att. de Rech. CNRS * STRUDEL, G. Dir. Adj. du Lab. de l'Ecole Prat, des Hautes Etudes * ZILLER (SENGEL), Mrs. C Ing. Orsay, Univ. Paris-Sud, Lab. d'Anat. Comp. BEAUMONT, A. Prof. YVROUD, Miss M. Maitre-Asst. HOURDRY, J. Maitre-Asst. DAUGERAS, Miss N. Asst. Lab. de Biol. Anim. * LENDER, Th. Prof. * LE MOIGNE, A. Maitre-Asst. * HUET, CI. Maitre-Asst. * HUET, M. Maitre-Asst. * SAUZIN, Miss M. J. Asst. * LA VERDURE, Miss A.-M. Chargee de Rech. CNRS Lab. d'Entomol. et d'Ecol. Exp. * LAUGfi, Miss G Lab. de Zool. * BERGERARD, J. Prof., Dir. * BLUZAT, R. R. Maitre-Asst. * LABOUR, G. R. Asst. * MAISONHAUTE, CI. Stag, de Rech. * LESPINASSE, R. Stag, de Rech. Paris, Coll. de France, Lab. d'Embryol. Exp. (see Nogent) FAURE-FREMIET, E. Prof. Lab. d'Histophysiol. * LOMBARD, Mrs. M. N. Paris, Ecole d'Anthropol. de P. Broca HUET, J. A. Dir. * FRIANT, Mrs. M. Prof. Paris, Ecole Norm. Superieure Lab. de Zool. * LAFONT, R. D. A. Asst. * PAPILLON, J. A. Asst. Paris, Inst. Natl. Agronom., Lab. de Zool. * PINET, J.-M. Asst. Paris, Inst. Natl, de la Sante et de la Rech. Med. (I.N.S.E.R.M.), Unite de Physiol. Placentaire PANIGEL, M. Prof. LE GOASCOGNE, C. Att. de Rech. HERNANDEZ (VERDUN), Mrs. D. F. Att. de Rech. CHALLIER, J. C. Asst. LEGRAND, Miss Ch. Asst. SANANES, Miss N. Asst. SCHNEIDER, H. Asst. Paris, Inst. Oceanographique, Lab. de Physiol. * OLIVEREAU, Miss M. M. A. Maitre de Rech. Paris, Maternite de Port-Royal, Lab. de Chim. Hormonale * CEDARD (WILLSTAETTER), Mrs. L. Maitre de Rech. * GUICHARD (CHAVENAT), Mrs. A. * IKONICOFF (KAPLAN), Mrs. L. Att. de Rech. I.N.S.E.R.M. Paris, Museum Natl. d'Hist. Nat., Lab. de Biol. Invert. Marins LEVI, CI. Prof. BOROJEVIC, R. Att. de Rech. CONAN, G. Y. Asst. LENICQUE, P. M. Maitre de Rech. CNRS Paris, Univ. de Paris V, Fac. de Med., Lab. d'Anat. * DELMAS, A. Prof., Dir. * HUREAU, J. Prof. * ALEXANDRE, J. H. Prof. agr. * EYRIES, Ch. * PINEAU, H. Maitre de Rech. * CHOUARD, C. H. * LASSAU, J. P. Chef de Trav. * DUVAL (BEAUPERE), Mrs. G. Chargee de Rech. Lab. d'Histol.-Embryol. A * TUCHMANN-DUPLESSIS, H. Prof. DAVID, G. Prof. agr. * MERCIER (PAROT), Mrs. L. Maitre de Rech. * AUROUX, M. Chef de Trav. * ROUSSEL, C. Chef de Trav. * HADJIISKI, P. Lab. d'Histol.-Embryol. B * GIROUD. A. Prof. hon. TAMBOISE, E. Prof. agr. SCHRAMM, B. Prof. agr. * MARTINET, Mrs. M. Chargee de Rech. CNRS DADOUNE, J. P. Chef de Trav. SOLERE, M. Chef de Trav. Inst. d'Histochim. Med. * WEGMANN, R. W. Dir. adj. Paris, Univ. de Paris VI, Lab. d'Embryol. GALLIEN, L. Prof., Dir. COLLENOT, A. Maitre de Conf. * LACROIX, J. C. Lab. de Physiol, des Insectes * SCHOELLER (RACCAUD), Mrs. J. Prof. * GUICHARD (CHAIX), Mrs. M. T. Cherch. Paris, Univ. de Paris VII, Lab. d'Anat. Comp. * DEVILLERS, Ch. Prof. * FRANCOIS, Y. Prof. ROSENBERG, A. J. Prof. * CORSIN, Miss J. Maitre-Asst. * CLAIRAMBAULT, P. Maitre-Asst. * BOULEKBACHE, H. Asst. COUPE, R. J. F. Asst. * CHANCONIE (MAURY), Mrs. M. Ing. CNRS * PINGANAUD (PERRIN), Mrs. G. Asst. Fac. des Sci., Inst, de Bibl. Molec. * CROIZAT, B. 225 France France * PIPERNO. Mrs. A. Lab. d'Evol. des Etres Org. CHARNIAUX (COTTON), Mrs. H. Prof. MEUSY, J.-J. Att. de Rech. * PA YEN, Miss G. G. Att. de Rech. * DfiPECHE, J. Asst. VIANEY-LIAUD, M. Asst. TCHELEBI (PAPILLON), Mrs. M. Att. de Rech. Fac. Saint-Antoine, Lab. d'Embryol. ROUX, Ch. Prof. Paris (see also Banyuls, Nogent, Orsay, San no is, Villefranche) Poitiers, Univ. de Poitiers, Fac. des Sci., Lab. de Physiol. Anim. * GARGOUIL, Y. M. Prof. * BERNARD, CI. Asst. * GROS, D. Moniteur Reims, Univ. de Reims, Fac. des Sci., Lab. de Biol. Cell. * GONTCHAROFF, Miss M. Prof, titul. * BIERNE, J. Maitre de Conf. * LECHENAULT, H. Maitre-Asst. * PASTISSON, Miss C. Maitre-Asst. * VERNET, G. Asst. * JALOUZOT, R. Asst. * RU£, G. Asst. Lab. de Physiol. Anim. * JACQUOT, R. L. Prof. * NAGEL, J. Maitre-Asst. * SUTTER, B. C. J. Maitre de Conf. * SUTTER (DUB), Mrs. M. T. Asst. * FELIX, J. M. Asst. * PERRIER, Mrs. H. Asst. * PLAS, Mrs. C. Att. de Rech. CNRS * GALAND, G. Asst. Renncs, Fac. des Sci., Lab. de Biol. Gen. PICHERAL, B. Maitre-Asst. U.E.R. d'Odontol. * YARDIN, M. H. Prof. Rouen, Fac. Mixte de Med. et Pharm., Lab. d'Anat. Norm. TARDIF, B. Prof. agr. CAPUANO, G. Asst. Rouen (see also Mont Saint Aignan) Sannois, Inst. Pasteur, Serv. d'Embryol. Exp. * RAYNAUD, A. Dir. de Rech. CNRS * RAYNAUD (CHAULIN-SERVINIERE), Mrs. J. Chef de Lab. * PIEAU, C. Att. de Rech. CNRS * VASSE, J. Att. de Rech. CNRS Strasbourg, Musee Zool. de l'Univ., * GOUIN, F. J. Conserv. Strasbourg, Univ. de Strasbourg, Fac. de Med., Inst. d'Embryol. * CLAVERT, J. M. J. Prof., Dir. * RUCH, J. V. Maitre de Conf. * GABRIEL-ROBEZ (KREMER), Mrs. O. * GERLINGER, P. Chef de Trav. Fac. des Sci., Lab. de Zool. et d'Embryol. Exp. VIVIEN, J. H. Prof., Dir. THIEBOLD, J. J. Prof. Talence, Univ. Bordeaux I, Lab. de Biol. Anim. A * CAMBAR, R. Prof. * GIPOULOUX, J. D. Maitre-Asst. * GIRARD (DECHAMBE), Mrs. C. Maitre-Asst. * ALBERT, J. Asst. * CHAMBOLLE, P. Asst. * BRUSTIS. J. J. Asst. * LESTAGE, J. Att. CNRS Lab. de Physiol. Gen. DUTRIEU, Miss J. Maitre de Conf. CERBELLE, J. C. Maitre-Asst. GOURDOUX (DESTRADE), Mrs. L. A ccf MOREAU, R. Asst. Lab. de Zool. Exp. * HAGET, A. Prof. * ROGUEDA (VIGNAU), Mrs. J. Maitre-Asst. * LOUVET, J. P. Maitre-Asst. * ALLfiAUME (BORDES), Mrs. N. Asst. * SUCH (RAZIMBAUD), Mrs. J. Asst. * FOURNIER, B. Att. de Rech. * CAVALLIN (THOMAS), Mrs. M. Att. de Rech. * TAMARELLE (GARAUDY), Mrs. M. Att. de Rech. * RESSOUCHES (SELMfiS), Mrs. A. P. Ing. de Rech. Toulouse, Univ. Paul-Sabatier, U.E.R. Biol. Exp., Lab. de Biol. Gen. NOUVEL, H. Prof., Dir. * BEETSCHEN, J. C. Prof. * GASSER, F. Maitre-Asst. * JAYLET, A. Maitre-Asst. * FERRIER, V. Maitre-Asst. * DUPRAT (ESCUDIfi), Mrs. A. M. Chargee CNRS * DEPARIS, P. Asst. * REYREL, Miss F. M. J. Asst. Tours (see Azay) Ville d'Avray * ROSTAND, J. Prof. Villefranche-sur-Mer, Fac. des Sci. de Paris, Stat. Zool. * LALLIER, R. A. Maitre de Rech. CNRS Villejuif, C.N.R.S., Inst. Sci. de Rech. sur le Cancer * PASCAUD, M. Prof., Chief of Serv. Villeneuve d'Ascq, Univ. des Sci. et Techn. de Lille, Serv. de Biol. Anim. * MARCEL, R. Maitre-Asst. * DHAINAUT, A. Maitre-Asst. * BART, A. Maitre-Asst. * BOILLY, B. * LHEUREUX, E. Asst. Lab. d'Embryol. * CAPURON, A. P. Prof. Villeurbanne, Univ. de Lyon I, Sect, de Biol. Gen. et Appl. * NIGON, V. Prof., Dir. * LEGAY, J. M. Prof. * BRUN, J. L. Maitre de Conf. * DAILLIE, J. Maitre de Conf. * TEULADE, P. Maitre de Conf. * FOURCHE, J. Maitre-Asst. * GEURRIER. P. Maitre-Asst. 226 France Germany (West) * GODET (NONNENMACHER), Mrs. J. Maitre-Asst. * GILLOT (PERDRIX), Mrs. S. Maitre-Asst. * PONTIER, J. Maitre-Asst. * PRUD'HOMME, J. C. Maitre-Asst. * HEIZMANN, P. Art. de Rech. * COULON (BUBLEX), Mrs. M. M. Art. de Rech. * BLANCHET, J. P. Asst * PAVfi, A. G. Asst. * DE TURENNE, Miss M. Stag. CNRS GERMANY (East) Berlin (see Gatersleben) Gatersleben, Dtsche Akad. der Wissensch. zu Berlin, Inst. f. Kulturpflanzenforsch. PANITZ, R. Asst. MULLER. A. J. Asst. Greifswald, Univ. of Greifswald, Med. Sch., Dept. of Obstet. & Gynecol. HORKf . Z. Oberarzt Jena, Friedrich-Schiller Univ., Mathem.-naturwiss.-techn. Fak., Sekt. Biol.-Pflanzenphysiol. AUGSTEN, H. Prof. Magdeburg, Med. Akad., Biol. Inst. SCHUNZEL, G. Rostock, Univ. Rostock, Med. Fak., Anat. Inst. * SCHUMACHER, G. H. Prof., Dir. * KRANTZ, Mrs. H. Oberarzt * FANGHANEL, J. Oberarzt * FREUND, Mrs. E. Wiss. Mitarb. Zool. Inst. ARNDT, E. A. Prof. (Abt. Meeresbiol.) PENZLIN, H. Doz. GERMANY (West) Aachen, Rhein.-Westf.-Techn. Hochsch., Med. Fak., Abt. Anat. * LUDWIG. K. S. Prof., Dir. * BAUR. R. Wiss. Asst. * KRESS, Miss A. Wiss. Asst. * SPORNITZ, U. M. Wiss. Asst. Bad Godesberg, Inst, fur Flugmed. der D.F.V.L.R. * BRIEGLEB, W. Abt. leiter * TEUCHERT, Mrs. G. Wiss. Mitarb. Berlin, Freie Univ. Berlin, Med. Fak., II. Anat. Inst, und Forschungs- abt. fur Elektronenmikr. * MERKER, H.-J. Prof. (Anat.) SCHWARZ, W. Prof. (Anat.) * NOACK, W. Asst. Prof. * SCHWEICHEL. J.-U. Asst. Prof. Inst, fiir Biochem. und Molek. Biol. * TIEDEMANN, H. Prof., Dir. * GOTTSCHLING, H. Asst. Prof. * TIEDEMANN, Mrs. H. Wiss. Asst. * FAULHABER, Miss I. E. W. Doz. * GRUNZ, H. Akad. Rat Dept. of Obstet. and Gynecol., Klin. Steglitz * LEMTIS, H. G. Prof. Pathol. Inst., Klin. Westend * BECKER, V. Prof. Pharmakol. Inst., Abt. Embryonalpharmakol. * SCHIMMELPFENNIG, K. Asst. Prof. Inst, of Vet. Histol. and Embryol. * KUNZEL. E. Prof., Dir. Zentr. Inst. Biochem./Biophys. * SCHMIALEK, P. I. Zool. Inst. DOHLE, W. Berlin, Max-Planck-Inst. fur Molek. Genet. * WITTMANN, H.-G. Prof., Dir. Berlin, Schering A.G., Dept. of Endocr. Pharmacol. * ELGER, W. Bochum, Ruhr-Univ., Inst, fiir Anat., Lehrstuhl I * BREIPOHL. W. Wiss. Asst. * CHRIST, B. Wiss. Asst. * HINRICHSEN, K. o. Prof. * JACOB, H. J. Wiss. Asst. * JACOB, Mrs. M. Wiss. Asst. * MELLER, K. Doz. Inst, fiir Zellphysiol., Abt. Biol. * BEINBRECH. G. Bonn, Rhein.-Friedr.-Wilhelms-Univ., Landwirtsch. Fak., Inst, fiir Landwirtsch. Zool. und Bienenkunde * WURMBACH. H. Prof., Head * LADAS, A. Asst. Bonn, Univ. Bonn, Anat. Inst., Abt. f. Neuroanat. FLEISCHHAUER, K. Prof. GARWEG, G. SCHLUTER, G. Braunschweig, Techn. Univ., Zool. Inst. * HAUENSCHILD, C. Prof. * MULLER, W. A. Doz. * LARINK, O. Asst. Diisseldorf, Univ. Dusseldorf, Med. Fak., Inst, fur Humangenet. und Anthropol. SCHADE, H. Prof., Dir. GROTE. W. Wiss. Asst. Mathem.-Naturwissensch. Fak., Zool. Inst. * WADA, S. Asst. Inst, fiir Allgem. Biol. * HESS, O. Prof. * GLATZER, K. H. Wiss. Asst. * SCHAFER, U. Res. Asst. * KUNZ, W. * SCHWOCHAU, M. E. Res. Assoc. Erlangen, Univ. Erlangen-Niirnberg, Med. Fak., Anat. Inst. * MERKLE, U. Prof. Naturw. Fak., I. Zool. Inst. SIEWING, R. Prof., Doz. * KORN, H. F. Doz. * SCHOLL, G. Doz. * BENESCH, R. Asst. * KOHLER, H.-J. Asst. * WOERLE, R. Asst. Frankfurt, Univ. Frankfurt, Med. Fak., Anat. Inst. STARCK, D. Prof. Inst, fiir Humangenet. u. Vergl. Erbpathol. DEGENHARDT, K. H. Prof., Dir. 227 Germany (West) KLEINEBRECHT, J. Wiss. Asst. Inst, fur Kinemat. Zellforsch. * BEREITER-HAHN, J. Asst. Zool. Inst. * HANKE, W. Prof. * LEVINSON, H. Z. Guest Prof. * BRANDLE, K. A. Asst. Freiburg, Max-Planck-Inst. fur Immunbiol. Arbeitsgr. GH.M.Gottschewski * GOTTSCHEWSKI, G H. M. Prof., Head * ZIMMERMAN, W. Asst. * DENKER, H.-W. Asst. * PETZOLDT, U. Asst. * GERHARDT, Mrs. S. Techn. Asst. * POLACK, M. Techn. Asst. Freiburg, Univ. Biol. Inst. I (Zool.) * SANDER, K. Prof. * WEYGOLDT, P. Doz. * KALTHOFF, K. Asst. * LEHMANN, R. Asst. * VOLLMAR, H. Asst. Giessen, Univ. Giessen, Anat. Inst. * OKSCHE, A. Prof. * PETERS, Th. Naturwiss. Fak., I. Zool. Inst. * GOTTING, K. J. Prof. II. Zool. Inst. * CLEFFMANN, G. Prof. Gottingen, Univ. Anat. Inst. * BLECHSCHMIDT, E. Prof., Dir. * STEDING, G Oberasst. * SEIDL, W. E. Asst. I. Physik. Inst. * HOMANN, H. A. Guest worker Hamburg, Univ., Med. Fak., Anat. Inst. * HORSTMANN, E. Prof., Dir. * HOLSTEIN, A.-F. Priv. Doz. * BREUCKER, Miss H. Abt. fur Neuroanat. * LIERSE, W. Prof., Head * KAUFMANN, P. Asst. * BLOSS (JABLONOWSKI), Mrs. W. Inst, fur Humangenet. * SCHLOOT, W. Priv. Doz. Univ.-Frauenklinik STEGNER, H. E. Priv. Doz. Inst, fur Hydrobiol. und Fischereiwiss. LILLELUND, K. Prof., Dir. * PETERS, N. Prof. * BRAUM, E. Asst. Hannover, Techn. Univ., Inst. Kir Botanik * STANGE, Miss L. Prof. Heidelberg, Univ., Fak. Biol., Bot. Inst. * BOPP, M. Prof., Dir. * CAPESIUS, Miss I. Asst. * BEIDERBECK, R. Asst. * ABEL, W. Wiss. Rat Physiol. Lehrstuhl, Zool. Inst. * DUSPIVA, F. Prof., Dir. * HANSEN-DELKESKAMP, Mrs. E. Germany (West) * SCHNETTER, W. Asst. * SAUER, H. W. Asst. * WEGENER, G. Asst. * JANTZEN (WILKENS), Mrs. H. L. M. Asst. * WINTER, Miss H. Asst. * SCHELLER, Kl. Asst. Heiligenberg, Heiligenberg-Inst. * KRAUSE, G. Prof. * WOELLWARTH, C. von * KOCHER, W. Doz. * KOCHER-BECKER, Mrs. U. Asst. * PENTZ, S. Asst. * WOLF, R. Asst. Kiel, Univ., Anat. Inst. * PEHLEMANN, F.-W. Priv. Doz. Kobi, Max-Planck-Inst. fur Hirnforsch., Abt. fur allg. Neurol. * WECHSLER, W. Prof. Kobi, Univ. Koln, Inst, fur Entw.physiol. * HARTE, Miss C. Prof. * POHLEY, H. J. Prof., Doz. * KIERMAYER, O. Prof., Doz. * HOFMANN, D. K. Asst. * DEWES. E. Asst. Zool. Inst. * EGELHAAF, A. Prof. * NEUMANN, D. Prof. * KUHN, O. Prof. (Emer.) * ENGLANDER, H. Prof. * VAHS, W. Prof. * ANTON, H. J. Prof. * JOHNEN, Miss A. G Prof. * HARTWIG, H. Doz. * CQLLN, Kl. Asst. * FISCHER. A. Asst. * HARTMANN, R. Asst. * KUTHE, H. W. Asst. * LOHMANN, K. Asst. Mainz, Univ. Mainz, Inst, fur spez. Botanik * HACCIUS, Miss B. Prof. Inst, fur allg. Zool. * ANDRES, G Prof. Marburg, Univ. Marburg, Anat. Inst. * PETRY, G. Prof., Dir. * BEIER, H. M. Asst. Physiol.-Chem. Inst. * SEKERIS, C. E. Oberasst. Zool. Inst. * KOECKE, H.-U. Prof., Dir. LODTKE, H. Prof., Dir. * SEIDEL, F. Prof. (Emer.) * SCRIBA, M. E. L. Priv. Doz. * KOCH, P. Asst. * SEITZ, K.-A. Asst. Miinchen, Max-Planck-Inst. fur Biochem. * REMBOLD, H. Priv. Doz. Miinchen, Univ., Zool. Inst. BECKER, H. J. Prof. * BOHN, H. * MORITZ, K. B. Tierarztl. Fak., Inst, fur Pharmakol., Toxicol, und Pharmazie * TEMPEL, K. Doz. 228 Germany (West) Italy Miinster, Univ. Miinster, Med. Fak., Anat. Inst. ROLLHAUSER, H. Prof., Head ROLLHAUSER (TER HORST), Mrs. J. O. B. Inst, fur Humangenet. * LENZ, W. Prof., Dir. * PAWLOWITZKI, I. H. Asst. Zool. Inst. * ENGELS, W. Doz. * MAYS, U. Asst. RIBBERT, D. Asst. Pinneberg, * ORTMANN, B. Saarbriicken, Univ. des Saarlandes, Inst, fur Genet. * KROEGER, H. Prof., Dir. * ROBERT, M. Asst. * BURKART, T. Asst. * BOSSHARD, N. U. Asst. * BILO, Mrs. A. Grad. Stud. * DORR, H. Grad. Stud. * GETTMANN, W. W. Grad. Stud. * MULLER, G. H. Grad. Stud. * TROSCH, W. Grad. Stud. * SANNASI, A. Scient. Res. Guest * GOPALAN, H. N. B. Scient. Res. Guest Stuttgart, Univ. Hohenheim, Inst, fur Histol. und Embryol. * KNESE, K. H. Prof., Dir. Zool. Inst. * PFLUGFELDER, O. Prof., Dir. * ZUCHT, B. Asst. Tubingen, Max-Planck-Gesellschaft, Friedr.-Miescher-Lab. * GERISCH, G. Max-Planck-Inst. fur Biol. Abt. Beermann BEERMANN, W. Prof. MEYER. G. F. Doz. HENNIG, W. Asst. GROSSBACH, U. Tubingen, Univ., Zool. Inst. GRELL, K. G. Prof. SCHWARTZ, V. Prof. NETZEL, H. E. M. Asst. LEIBENGUTH, F. Asst. Wilhelmshaven, Max-Planck-Inst. fur Zellbiol. * SCHWEIGER, H. G. Prof., Dir. * HAMMERLING, J. Prof. Wiirzburg, Univ. Wurzburg, Med. Fac, Dept. of Anat. * SCKEBLER, T. H. Prof., Head Fac. of Nat. Sci., Inst, of Appl. Zool. * G5SSWALD, K. Prof., Head * SCHMIDT, G. H. Priv.Doz. Zool. Inst. * KRAUSE, G. Prof., Dir. * KOCHER, W. Doz. * JUNG, E. Asst. * WOLF, R. Asst. * EMMERT, W. Asst. * WOLBERT, P. Asst. * WENT, D. F. ROSELER, P.-F. GREECE Athens, Univ. of Athens, Fac. of Sci., Zool. Lab. £> Museum KIORTSIS, V. Prof., Dir. ZAFIRATOS, K. Asst. MORAITOU (APOSTOLOPOULOU), Mrs. M. Asst. MYTILINEOU, C. Res. Assoc. HUNGARY Budapest, Chrildren's Hosp. ,,Paul Heim", Dept. of Congen. Malform. * BERNDORFER, A. Chief Surgeon Budapest, Hung. Acad, of Sci., Inst, of Exp. Med., Morphol. Dept. * GYfiVAI (T6TH), Mrs. A. T. Res. Worker Budapest, Med. Univ. Inst, of Histol. & Embryol. * TORO, I. Prof. * CSABA, G. Prof. * TOROK, L. J. Asst. Prof. * HORVATH, Miss C. Asst. * MOLD, Miss K. Asst. RADOS, I. Asst. * TORO, I., Jr. Asst. * DRUGA, Mrs. A. Asst. Pecs, Univ. Med. School, Dept. of Anat. SZfiKELY, G. Lect. Szeged, Univ. Med. School, Dept. of Anat. * CSILLIK, B. Prof., Chairman * KALMAN, G. Res. Asst. * KASA, P. Res. Asst. * KNYIHAR, Miss E. Res. Asst. IRELAND Dublin, Univ. Coll., Zool. Dept. RAMSEY (KUNZ), Mrs. Y. W. Lect. DUKE, E. J. Asst. Lect. FRANCIS, Miss C. ITALY Arco Felice (Napoli) Lab. of Molec. Embryol. MONROY, A. Prof. * MILLONIG, G. * CRIPPA, M. Bari, Univ. of Bari, Fac. of Med., Inst, of Human Anat. * AMPRINO, R. M. Prof., Dir. * CAMOSSO, Miss M. E. Asst. * MITOLO. V. Asst. * RONCALI, Miss L. Asst. Bologna, Univ. di Bologna, 1st. di Anat. Comp. LEGHISSA, S. Prof., Dir. MINELLI, G. Prof. 1st. di Anat. Umana Norm. OLIVO, O. M., Prof., Dir. 1st. di Istol. ed Embriol. Gen. RIZZOLI, C. Prof.. Dir. MANZOLI, F. A. Asst. 229 Italy Italy MANZOLI (GIUDOTTI) , Mrs. L. Asst. Fac. of Sci., Inst, of Zool. * VANNINI. E. Prof., Dir. * STAGNI, Miss A.Prof. * ZAFFAGNINI, F. Prof. * GRASSO, M. Prof. * GARDENGHI, G. Asst. * DI GRANDE, Miss F. Researcher * ZACCANTI, F. Researcher Catania, Univ. di Catania, 1st. di Anat. Umana Norm., 2a Catt. * PASSAPONTI, A. Prof., Dir. * MARRARO (CARNAZZA), Mrs. M. L. Asst. Prof. * DI DINO, Miss G. Researcher 1st. di Zool. e Anat. Comp. * RANZOLI, F. Prof. * DE LUCA, V. Prof. * SICHEL, G. Prof. * BARBAGALLO ( PATTI ) , Mrs. I. Asst. * VISCUSO, Miss R. Asst. Ferrara, Univ. di Ferrara, Fac. di Sci.. 1st. di Anat. Comp. * RAUNICH, L. Prof. * SALVATORELLI, G. Asst. 1st. di Zool. COLOMBO, G. Prof., Dir. PINAMONTI, S. Prof. MICCIARELLI, Mrs. A. Asst. Genova, Univ. di Genova, 1st. di Anat. Comp. * MINGANTI, A. Prof. 1st. di Zool. * DELLA CROCE, N. Asst. Prof. * BETTANIN (BELGRANO), Mrs. S. Asst. * GAINO, Miss E. Asst. L'Aquila, Univ. of l'Aquila, Inst, of Gen. Biol. * PETRUCCI, D. Messina, Univ. di Messina, Fac. di Sci., 1st. Idrobiol. e Pescicolt. * COSTANZO, G. Asst. 1st. di Zool. en Anat. Comp. * BOLOGNARI, A. Prof.. Dir. * DONATO (CELI), Mrs. A. Asst. ALBANESE (CARMIGNANI), Mrs. M. P. Asst. CANNATA, F. Asst. Milano, Univ. of Milano, Fac. of Med., Inst, of Human Anat. * PANNESE, E. Prof. 1st. di Genet. * BARIGOZZI, C. Prof., Dir. * HALFER, Miss C. Asst. * DOLFINI, Miss S. Asst. Catt. di Embriol. e Morfol. Sperim. LEONE, V. 1st. di Zool. RANZI, S. Prof., Dir. 1st. di ScL Bot. * MARR£, E. Modena, Univ. di Modena, Fac. di Sci. Fis. Mat. en Nat., 1st. di Anat. Comp. * BAFFONI, G. M. Prof., Dir. * MARINI, Miss M. Asst. * FRATELLO, B. Asst. * LOMBARDO, F. Asst. * BERTOLANI. R. Asst. Napoli, Univ. di Napoli, 1st. di Anat. Umana Norm., II. Catt. BORGHESE, E. Prof.. Dir. ALESCIO, T. Asst. 1st. di Istol. ed Embriol. TADDEI. C. Napoli (see also Arco Felice) Padova, Univ. di Padova, Fac. di Sci., 1st. di Biol. Anim. * SABBADIN, A. Prof. * SALA, M. Asst. Prof. COLOMBO, L. Asst. * DANIELI, G. A. Asst. * BURIGHEL, P. Asst. * COLOMBERA. Inst, of Gen. Biol. LEVIS, A. G. Asst. Palermo, Univ. di Palermo, Fac. di Sci., 1st. di Anat. Comp. * GIUDICE, G. Prof., Dir. * MUTOLO, V. Assoc. Prof. * VITTORELLI, Miss M. L. Asst. Prof. * RINALDI, Miss A. M. Asst. Prof. * COGNETTI, G. Asst. Prof. * PUCCI (MINAFRA), Mrs. I. Asst. Prof. * SCONZO, Miss G. Res. Fellow * PIRRONE, Miss A. M. Res. Fellow 1st. di Biol. Gen. * MANCUSO, V. Prof. 1st. di Istol. ed Embriol. * D'AMELIO, V. Prof. * D'ANCONA (LUNETTA). Mrs. G. Asst. Prof. * MINAFRA, S. Asst. Prof. * DI STEFANO, L. Asst. Prof. * MUSMECI, Miss M. T. Res. Assoc. 1st. di Zool. * REVERBERI, G. Prof., Dir. * ORTOLANI, Miss G. Prof. * DURANTE, Miss M. C. Prof. FARINELLA, Mrs. N. Prof. * PATRICOLO, Miss E. Prof. * MANSUETO, Mrs. C. Prof. * CUSIMANO, Mrs. T. Prof. * D'ANNA, T. Asst. * LA SPINA, Miss R. Asst. * MAJORCA, Mrs. A. Asst. * PUCCIA, E. Asst. * VILLA, Miss L. Asst. * PARRINELLO, N. Asst. * DE LEO, G. Researcher Parma, Univ. di Parma, Fac. di Sci., 1st. di Zool. * SCHREIBER, B. Prof., Dir. * RINALDI, Miss L. Asst. Pavia, Univ. di Pavia, Sch. of Med., Dept. of Dermatol. * SERRI. F. Prof., Chairman * GIANNETTI, A. Asst. * CERIMELE, D. Asst. Fac. of Sci., Dept. of Comp. Anat. * GERZELI, G Prof. * BOLOGNANI, Mrs. A. M. Prof. 230 Italy Netherlands Dept. of Histol. & Embryol. * MANFREDI ROMANINI, Mrs. M. G. Prof., Dir. * FRASCHINI, Miss A. Prof. * PORCELLI. Miss F. Asst. * TINOZZI MASSARI. Mrs. S. Asst. Perugia, Univ. di Perugia, Fac. di Med., 1st. di Biol. Gen. * LIOTTI, F. S. Prof., Dir. * MIGLIORINI, Mrs. G. Asst. * ROSI, Miss G. Asst. * GIOVANNINI, E. Asst. * BIAGIONI, Mrs. M. Asst. Inst, of Histol. & Gen. Embryol. * CARINCI, P. Prof., Dir. * LOCCI, Miss P. Researcher * DOMINICI, C. Asst. Fac. di Sci. Agr., 1st. di Zool. Gen. CASTIGLI, Mrs. M. Prof., Dir. BELLONI, C. Asst. Fac. di Sci., 1st. di Anat. Comp. * BONDI, C. Prof., Dir. * FACCHINI, Miss L. Asst. Pisa, Univ. di Pisa, 1st. di Anat. e Istoembriol. MASSART, C. Prof., Dir. CONTE, G Asst. 1st. di Zool. e Anat. Comp. * BENAZZI, M. Prof., Dir. * BENAZZI (LENT ATI). Mrs. G Assoc. Prof. * MANCINO, G. Assoc. Prof. * PUCCINELLI, Mrs. I. Asst. * SCALI, V. Asst. * BARSACCHI, Miss G Asst. * GREMIGNI, V. Asst. * MAZZA, M. Res. Assoc. * GIANNINI, Mrs. E. Res. Assoc. * NARDI, Miss I. Res. Assoc. * GALLENI, L. Res. Assoc. * GIORGI, F. Res. Assoc. Roma, C.N.E.N., Lab. di Radiobiol. Anim. ZITO (BIGNAMI), Mrs. R. Invest. FANTONI, A. Invest. Roma, Univ. di Roma, Fac. di Med., 1st. di Biol. Gen. SPIRITO, A. Prof., Dir. * SANTORO D'ANGELO, Mrs. L. Asst. Prof. * GULLINI (CUOMO), Mrs. M. Asst. Fac. di Sci., 1st. di Anat. Comp. ..Battista Grassi" * STEFANELLI, A. Prof., Dir. * ROSSI, A. Asst. * BERTOLINI, B. Asst. * CAPANNA, E. Asst. * FILONI, S. Asst. 1st. di Istol. ed Embriol. URBANI, E. Prof., Dir. URBANI (MISTRUZZI), Mrs. L. Prof. Inc. MONESI, V. Prof. MOLINARO, M. Asst. 1st. di Zool. PASQUINI, P. Prof., Dir. MANELLI, H. Asst. Prof. MASTROLIA, Miss L. Asst. MANGIA, F. STAMPA, Mrs. M. Sassari, Univ. di Sassari, Fac. di Sci. Mat. Fis. e Nat. 1st. di Zool. * LEPORI, N. G Prof., Dir. * PALA, Miss M. Asst. * LISSIA (FRAU), Mrs. A. M. Asst. * ARRU, Miss A. Asst. Torino, Univ. of Torino, Fac. of Med., Dept. of Human Anat. * FILOGAMO, G Prof., Dir. * GIACOBINI, G. * ROBECCHI, Miss M. G Asst. Prof. GABELLA, G. Asst. CANTINO, D. Asst. COSTA, M. Asst. MACOTTA, V. Asst. Cell & Molec. Biol. Lab. * COMOGLIO, P. M. 1st. di Istol. ed Embriol. Gen. * MARCHISIO, P. C. Lib. doc. Fac. di Sci., 1st. di Embriol. Sperim. GUARDABASSI, Miss A. Prof., Dir. OLIVERO, M. Asst. CAMPANTICO, E. Asst. Inst, of Biochem. RINAUDO, M. T. GIUNTA, C. Asst. BRUNO, R. Fac. di Med. Vet., 1st. di Istol. ed Embriol. Gen. * BARASA, A. 1st. di Antropol. Criminol. * TESTA-BAPPENHEIM, I. Prof. Trieste, Univ. of Trieste, Fac. of Sci., Inst, of Zool. & Comp. Anat. * GHIRARDELLI, E. Prof., Dir. * RADO LUSER, Mrs. G Asst. * DI MARCOTULLIO, A. Asst. * GRAZIOSI, G. Asst. NETHERLANDS Amsterdam, Netherl. Centr. Inst, for Brain Res. ARIENS KAPPERS, J. Prof., Dir. * SCHAD& J. P. Assoc. Dir. * CORNER, M. A. Head Lab. of Developm. Physiol. * JONGKIND, J. F. Head Histochem. & Cytochem. Group Amsterdam, Univ. of Amsterdam, Med. Fac, Anat.-Embryol. Inst. * LIMBORGH, J. van Prof., Dir. * WOERDEMAN, M. W. Prof. (Emer.) * TRAMPUSCH, H. A. L. Sen. Lect. Head Div. of Exp. Morphol. * LOS, J. A. Sen. Lect. * DRUKKER, J. Sen. Lect. * MADJEREK, Z. S. * TONNEYCK, Mrs. I. Asst. * OOSTROM, C. G van Asst. * LAANE, H. M. Asst. * ROEST, Mrs. J. A. Asst. * SCHOUTEN, A. A. Asst. * PRINS, H. J. 231 Netherlands Netherlands * HARREBOMfiE, Mrs. A. E. Res. Assoc. * AMONS, F. Res. Assoc. Histol. Lab. * STEGEMAN, Mrs. J. H. J. Fac. of Sci., Zool. Lab. * NAAKTGEBOREN, C. Sen. Sci. Off. * TA VERNE, M. Asst. * RAAMSDONK, W. van Sci. worker Amsterdam, Vrije Univ., Med. Fac, Lab. of Anat. & Embryol. * NIE, C J. van * DANDRIEU, M. R. Sci. worker Groningen, Univ. of Groningen, Fac. of Med., Dept. of Anat. 6 Embriol. * WILDE, A. G. de Prof., Head * PLEEGING J. H. Chief Asst. * GLAS, P. * JONGH, H. J. de Lect. Groningen (see also Haren) Haren (Gr.), Univ. of Groningen, Genet. Inst. * PIJNACKER. L. P. Sen. Sci. Off. * FEIERTAG, Mrs. C. C. M. Sci. Off. Fac. of Sci., Bot. Lab. * WESSELS, J. G. H. Prof. * VRIES, O. M. H. de Res. Assoc. Leiden, Univ. of Leiden, Med. Fac, Anat.-Embryol. Lab. DANKMEIJER, J. Prof., Dir. GOEDBLOED, J. F. Sen. Sci. Off. HUSON, A. Lect. Lab. for Cell Biol. & Histol. * GAILLARD, P. J. Prof., Dir. * ZAAYER, Miss J. J. P. Lect. * THESINGH, Miss C. W. Sen. Sci. Off. * HEERSCHE, J. N. M. Sen. Sci. Off. * BURGER, Mrs. E. H. Sci. worker * DIJK, Miss J. G. van Sci. worker * SCHERFT, J. P. Reader * OKKER, Mrs. G. H. Sci. worker Dept. of Obstet. £> Gynecol. * GEBHARDT, D. O. E. Biochem. Fac. of Sci., Genet. Lab. * BREUGEL. F. M. A. van Sci. worker * ZONNEVELD, B. J. M. Sci. worker * VREEZEN, Miss W. J. Sci. worker Zool. Lab. * KUIJEN, C. J. van * PRIESTER, W. de Sci. worker * SPREY, Th. E. Sci. worker * STARRE, Mrs. L. G. van der * VIJVERBERG, A. J. Scient. worker Nijmegen, Univ. of Nijmegen, Med. Fac, Dept. of Anat. 6 Embryol. LAMMERS, H. J. Prof., Dir. NIEUWENHUYS. R. Prof. * VERHOFSTAD, A. A. J. Asst. * KEYSER, A. J. M. Asst. * LAMMERS, G. J. Asst. Dept. of Biochem. * BONTING, S. L. Prof., Head * DAEMEN, F. J. M. Sci. Off. Fac. of Sci., Dept. of Cell Biol., Zool. Lab. * BERENDES, H. D. Prof. * HELMSING, P. J. Res. Assoc. * LEENDERS. H. J. Res. Assoc. * EMMERICH, H. Res. Assoc. * HOLT, Th. K. H. Res. Asst. * ALONSO, C. Res. Asst. Dept. of Zool. * DENUCfi, J. M. Prof. Rotterdam, Med. Fac. Rotterdam, Dept. of Anat. & Embryol. * KREDIET, P. Lector * KLEIN, H. W. 1st Sci. worker Dept. of Cell Biol. * BOTH, N. J. de Dept. of Endocr., Growth 6 Reprod. * ZEILMAKER, G. H. Utrecht, Hubrecht Lab. (Intern. Embryol. Inst.) * NIEUWKOOP, P. D. Prof., Dir. FABER, J. Deputy Dir. * BOTERENBROOD, Miss E. C. (exp. morphol.) * HARA, K. (photo- & cinematogr.) * LAWSON, Miss K. A. (tissue cult.) * KONIJN, Th. M. (developm. physiol.) * BLUEMINK, J. G. (electr. micr.) * UBBELS, Miss G. A. (histochem.) * OUWENEEL, W. J. (developm. genet.) SAAG, P. Th. M. van der (biochem.) * LAAT, S. W. de (biophys.) SALOMfi, B. Z. (chief librarian) * DOUCET (DE BRUINE), Mrs. M. H. M. Res. Assoc * DEKKER, R. Res. Assoc. SUTASURJA, Miss A. Res. Assoc Utrecht, Univ. of Utrecht, Centr. Interfac. * LINDENMAYER. A. Prof. Dental Sch., Orthodontic Dept. * MARKENS, I. S. Fac of Med., Dept. of Med. Anat. & Embryol. * DOORENMAALEN, W. J. van Prof., Dir. BRAHMA, S. K. Sen. Sci. Off. * GROENENDIJK, Mrs. M. M. * STARRE, H. van der Sci. worker * PRINS, G. H. Asst. Fac. of Sci., Biol. Ultrastr. Res. Unit ELBERS, P. F. Lect., Head BERENDSEN, W. Genet. Inst. * SCHARLOO, W. Prof. * SCHOUTEN. S. C. M. * THORIG, G. E. W. Zool. Lab. * RAVEN, Chr. P. Prof., Dir. * GEILENKIRCHEN, W. L. M. Lect. * VERDONK, N. H. Lect. * TIMMERMANS, Miss L. P. M. * LABORDUS, V. * BIGGELAAR, J. A. M. v. d. * BOON (NIERMEYER), Mrs. E. K. * WAL, U. P. v. d. * DONGEN, C. A. M. van * ARNOLDS, W. J. A. Vet. Anat. & Embryol. Inst. * WIERTZ, Mrs. E. L. M. J. Sen. Sci. Off. 232 Netherlands Poland * WENSING, C. J. G. Sen. Sci. Off. * HARTMAN, W. Lab. for Vet. Physiol. ROMIJN. C. Prof. LOKHORST, Miss W. Wageningen, Agric. Univ., Lab. for Entomol. WILDE, J. de Prof. * SCHOONEVELD, H. * KORT, C. A. D. de NORWAY Bergen, Univ. of Bergen, Anat. Inst. HARKMARK, W. Prof., Dir. * FORSBERG, J.-G. Prof. * ABRO, A. Asst. Prof. * KVINNSLAND, S. Asst. Prof. * FOSSE, G. Assoc. Prof. * RISNES. S. Intr. * HOLMBAKKEN, N. Stud, odont. Oslo, Univ. of Oslo, Anat. Inst. JANSEN, J. Prof. (Emer.) POLAND Krakow, Acad, of Med., Dept. of Biol. 6 Embryol. SKOWRON, S. Prof. (Emer.) * SREBRO, Z. Asst. Prof., Dir. * RZEHAK, K. Res. Asst. * SCISEAWSKI, A. Res. Asst. Polish Acad, of Sci., Dept. of Neuropathol. KALUZA, J. S. Krakow, Jagiellonian Univ., Dept. of Anim. Genet. & Org. Evol. * KRZANOWSKA, Mrs. H. Head Dept. of Comp. Anat. SZARSKI, H. Prof., Head * GRODZIfiSKI, Z. Prof. (Emer.) * KILARSKI, W. Lect. BYCZKOWSKA, Mrs. W. Dept. of Plant Physiol. * RYCZKOWSKI, M. Lect. Zool. Dept. * JURA, Cz. Head * WEGLARSKA, Miss B. Assoc. Prof. * KRZYSZTOFOWICZ, Miss A. Assoc. Prof. * TYSZKIEWICZ. Mrs. K. Asst. * KLAG, J. Asst. Inst, of Zootechn., Dept. of Reprod. Physiol., Histol. Lab. BIBORSKI, J. Head Krakow, Wyzsza Szkola Pedagog., Dept. of Zool. JUSZCZYK, W. Chief DOBROWOLSKI, J. Res. Asst. Eodz, Acad, of Med., Dept. of Histol. & Embryol. * FORTAK, W. Chief * LEONIENI, J. Adjunct * KMIEC, B. Asst. * BOCZKOWSKA, Mrs. J. Asst. * WYSOCKA, Miss B. Asst. * SOPIflSKI, M. Asst. E-6dz BAGINSKI, S. Prof. (Emer.) Poznan, Med. Acad., Inst, of Neurol. & Sensory Org. * WENDER, M. B. Head * KOZIK, M. Head Lab. of Pathol. * MULAREK, Mrs. O. Head Lab. Exp. Neurol. Warszawa, Coll. of Agric, Fac. of Zootechn., Dept. of Biol. Basis of Anim. Breeding * WOYKE, J. Prof. Warszawa, Med. School, Dept. of Obstet. & Gynecol. II, Lab. of Embryol. * MYSTKOWSKA, Mrs. E. T. * CHOROSZEWSKA, Mrs. A. Sen. Asst. * MA55KOWSKA, E. Asst. * BENTYN, K. Asst. Lab. of Pathol. Anat. * SZAMBORSKI, J. J. Chief * CZYZEWSKA, Mrs. M. Asst. Warszawa, Nencki Inst, of Exp. Biol., Dept. of Bioenergetics & Bioproduct. * STYCZYfiSKA. Mrs. E. Warszawa, Univ. of Warszawa, Zool. Inst., Dept. of Cytol. * MATUSZEWSKI, B. Doc. Zool. Inst., Dept. of Embryol. * TARKOWSKI, A. K. Doc. * ROGULSKA, Miss T. Sen. Asst. * OzDzEfiSKI, W. Sen. Asst. * CZOEOWSKA, Miss R. K. Sen. Asst. * MODLIflSKI. J. A. Asst. * WROBLEWSKA, Miss J. Asst. Zool. Inst, Dept. of Invert. Zool. * MORACZEWSKI, J. Sen. Asst. * SOLTYSSKA, Mrs. M. Sen. Asst. Dept. of Vert. Zool. * HALBA, R. Asst. * PLASOTA, K. J. Asst. Lab. of Protozool. * KACZANOWSKI, A. Sen. Asst. * KACZANOWSKA, Mrs. J. Sen. Asst. RADZIKOWSKI, St. Sen. Asst. Warszawa, Warsaw Agric. Univ., Fac. of Vet. Med., Dept. of Histol. & Embryol. * BIELAfiSKA, Mrs. Z. Assoc. Prof. * BYLINA, Mrs. A. Asst. * LIWSKA, Miss J. Asst. * PAWEOWSKA, Mrs. M. Asst . Wroclaw, Coll. of Agric, Fac. of Zootechn., Chair of Zool. * HUMIflSKI. S. Doc. Wroclaw, Univ. of Wroclaw, Inst, of Zool. * SEMBRAT, K. Prof., Dir. * PASCHMA. Miss M. Lect. * KOSCIELSKI, B. Doc. * NOWAK6WNA, Miss J. Adj. * RADECKA, Mrs. E. Lect. * KIEEBOWNA, Miss L. Adj. Zabrze, Silesian Acad, of Med., Dept. of Gen. Biol. WROBLEWSKI, R. Prof., Head ACHTELIK, W. Adj. 233 Poland BELKA, Mrs. A. Adj. BULSIEWICZ, Miss H. Asst . CZAPLICKI, J. Adj. CZAPSKA, Mrs. D. Adj. DZIUBA, P. Sen. Asst. HOLAK, H. Asst. KUCIAS, J. Adj. PORTUGAL Lisboa, Univ. de Lisboa, Fac. de Med., Inst, de Histol. e Embriol. * XAVIER MORATO, M. J. Prof.. Dir. * RODRIGUES CORREIRA, Mrs. M. J. Asst. * AMADO. P. O. Asst. Fac. de Cienc, Musea Bocage. * SACCARAO. G. da FONSECA Prof.. Dir. RUMANIA Cluj, Inst, de Med. $i Farm., Fac. de Med., Cat. de Biol.-Histol. * PREDA V. G. Prof. * CRISTEA, Miss M. Maitre de Conf. * CRACIUN, Mrs. O. Chef de Trav. Timisoara, Acad, de Stiinte Med., Lab. de Embriol. Norm, si Patol. * MENKES, B. Prof.. Dir. * RIMNICEANU, Mrs. C Prof. Cons. * SANDOR, S. Head Lab. * ELIAS. S. * ILIES. A. * ALEXANDRU. Mrs. C. * AMELS. Mrs. D. Tirgu-Mure^, Acad. Republ. Soc. Romania. Res. Stat., Dept. of Neuropathol. GONDISCH, M. Prof.. Dir. SZEKELY, C. Prof. GYERGYAY. F. Asst. Prof. GYERGYA (MALATINSZKY). Mrs. E. Asst. FESZT. T. Sci. Fellow KEREKES. M. Sci. Fellow BECUs (LAURENTIU). Mrs. M. Sci. Fellow SCOTLAND (see UNITED KINGDOM) SPAIN Granada, Univ. of Granada, Fac. of Med., Inst. F.Oloriz GUIRAO-PEREZ. M. Prof. GENIS-GALVEZ, J. M. Prof. MONTERO. E. Asst. Prof. ALVAREZ. L. Asst. Prof. PASCUAL-MORENILLA, Miss. M. T. Asst Prof. Madrid, Centra de Invest. Biol., Inst, of Genet. 6 Anthropol. * GARCIA-BELLIDO. A. Res. Member * MORATA, G. Res. Fellow * SANTAMARIA, P. Res. Fellow * RIPOLL, P. Res. Fellow Madrid, Fac. de Med., Lab. de Anat. y Embriol. ORTS LLORCA. F. Prof., Dir. Madrid, Inst. Cajal * GONZALEZ-SANTANDER, R. Sweden Salamanca, Univ. de Salamanca, Fac de Med.. Dept. de Anat., y Embriol. CASTRO ROMERO, J. M. Assoc. Prof. Valladolid, Univ. de Valladolid, Fac. de Med., Cat. de Anat. Serv. de Embriol. Exp. * OJEDA SAHAGUN, J. L. Prof. Agr. * BARBOSA AYUCAR. E. Prof. Adj. SWEDEN Goteborg, Univ. of Goteborg, Mathem. Naturw. Fak., Zool. Inst. * ENEMAR. E. A. W. Prof. * BERGQUIST. H. * JACOBSSON. A. Fil. He * ARONSSON. S. B. Fil. kand. * ARVIDSSON. Mrs. E. M. I. Fil. mag. * EURENIUS. Mrs. L. Fil. lie. * JARSKAR, R. J. Fil. lie. * TERNEBY. Miss U. K. Fil. lie. Lund, Tornblad Inst, for Comp. Embryol. * KALLEN, A. J. B. Prof., Dir. * HAKANSSON. L. Doc. * NORD, L. Doc. * SANDAHL. B., Asst * BJERRE, B. Asst. * SZYBEK, Mrs. Ch. Asst. Lund, Univ. of Lund, Inst, of Genet. MELANDER, Y. Doc. Zool. Inst, Dept. of Struct. Zool. * STROMBERG. J.-O. Res. Assoc. Zoophysiol. Inst. AGRELL, I. P. S. Prof., Head EMANUELSSON, H. Asst. Prof. KARLSSON, B. Asst Prof. BRUCE, L. Fil. kand. GRAHN, I. Asst. HEBY, O. Asst. Stockholm, Karolinska Inst., Dept. of Histol. EDSTROM, J. E. GYLLENSTEN. L. J. W. Assoc. Prof. ERICSON (STRANDVIK), Mrs. B. ERNSTROM. U. WIRSEN. C. DANEHOLT. B. Res. Assoc. Dept. of Pediat. Pathol. * IVEMARK, B. I. Assoc. Prof., Head * ROBERTSON, B. Res. Fellow Lab. of Teratol. * LARSSON. K. S. Assoc. Prof. * HCRNBLAD, P. Y. Asst. Prof. * ERIKSSON, Miss M. Res. Assoc. * MARSK, L. Res. Assoc. Stockholm, Univ. of Stockholm, Zool. Inst. * SILEN, L. K. P. Prof., Dir. PEHRSON, G. T. Prof. (Emer.) HAGELIN, L. O. Lect. Stockholm, Wenner-Gren's Inst for Exp. Biol. LINDBERG. N. O. H. Prof., Dir. * GUSTAFSON, T. Assoc. Prof. * AFZELIUS, B. A. Asst. Prof. * BACKSTROM, S. A. A. Asst. Prof. * HULTIN, J. M. T. Asst. Prof. 234 Sweden Switzerland * PERLMANN, H. P. Asst Prof. * ELIASSON. Mrs. E. Asst. * JOHANSSON, K. B. G. Res. Asst. * TONEBY, M. I. Res. Asst. * IMMERS. J. Res. Assoc. * BARNARD. P. B. T. Res. Assoc. * LUNDGREN. B. T. Res. Asst. Stockholm * KINDAHL, Miss M. E. Lect. Umeil, Univ. of Umea, Dept. of Biol. * BERTMAR, G. Sen. Lect. Sect, of Ecol. Zool. * HANSSON, L.-E. Asst. * HAGBERG, S. Asst. Dept. of Zoophysiol. * L0VTRUP, S. Prof. * L0VTRUP, Mrs. H. Asst. Prof. * HAGLUND, Miss B. M. Lect. * HOGLUND, L. R. Asst. * LANDSTROM, U. Asst. * HANSSON MILD, K. Res. Asst. Uppsala, Univ. of Uppsala, * JACOBSON, D. C. O. Prof. * HORSTADIUS, S. Prof. (Emer.) * JAGERSTEN, K. G. M. Prof. (Emer.) * HOLM. K. A. Doc. * FRANZEN, A. S. Doc. * EHN, J. A. Doc. * GIDHOLM, L. Doc. * HENDELBERG. J. Doc. * JONSSON, B. G. * STROM, R. * WIDERSTEN. B. * CANTELL, C.-E. * LOFBERG, J. E. * GEZELIUS, N. G. B. * JINNEROT, D. P. A. SWITZERLAND Basel, Schweiz, Tropeninst. GEIGY, R. Prof., Vorsteher Basel, Univ., Anat Inst. * WARTENBERG, H. Prof. Zool. Anstalt * PORTMANN, A. Prof. (Emer.) * NOESCH. H. Prof. GEIGY, R. Prof. * FIORONI. P. Asst. * SENN. D. G. Asst. Bern, Naturhist. Museum * HUBER, W. Prof., Dir. Bern, Univ. of Bern, Med. Fac, Dept. of Anat. * STRAUSS, F. Prof. * RfiVESZ, Mrs. E. Prosect. * RAZEK. H. A. Instr. * DBAL7, J. Prosect. Zool. Inst., Div. of Cell & Developm. Biol. * WEBER, R. Prof. * HAUSER, R. Asst. * SCHOLL, A. Asst. * KISTLER, A. Res. Asst. * WELLAUER, P. Rest. Asst. * RYFFEL. G. * SCHIBLER, U. * KLEINLOGEL, H. * RICHTER, R. H. H. Bern (see also Ostermundigen) Fribourg, Univ. of Fribourg, Fac. of Sci., Inst, of Anim. Biol. * SCHOWING. J. Prof. AESCHLIMAN, A. Prof. * ROBADEY. Mrs. M. YL Asst. Inst, of Histol. & Gen. Embryol. CONTI, G Prof., Dir. * MUSY, J. P. Priv. Doz. * GOTZOS, V. Asst. * GOTZOS, Mrs. B. Asst. Geneve, Univ. de Geneve, Fac. de Med., Inst. d'Anat. BAUMANN, J. A. Prof., Dir. * TABAN, Ch. H. Prof. Inst. d'Histol., Lab. d'Embryol. Exp. * GALLERA, J. Reader, Dir. * NICOLET, G. Asst. Univ. Clin, of Gynecol. & Obstet. Lab. of Embryol. & Cytogenet. * KAJII, T. Asst. Prof. OHAMA K. Res. Assoc. SUGANDHI. M. R. Stat, de Zool. Exp. FISCHBERG, M. Prof. ord. Geneve, Inst, de Med. Dentaire BAUME, L. J. Prof., Dir. Lausanne, Inst. Suisse de Rech. Exp. sur le Cancer * MODAK, S. P. Cherch. Sci. Dept. de Biol. Molec. * SCHERRER, K. Head * CORNUZ, Mrs. R. Techn. Asst. Lausanne, Univ. de Lausanne, Inst d'Histol. et d'Embryol. * PEXIEDER, T. Asst. Ostermundigen'Be, Univ. Bern, Brain Anat. Inst. * PILLERI, G. Prof., Dir. * KRAUS. Miss C. Asst. * GIHR, Miss M. Asst. Zurich, Swiss Fed. Inst, of Technol., Lab. for Developm. Biol. * URSPRUNG. H. Prof. * EPPENBERGER, H. M. Asst Prof. * LEZZI, M. Oberasst * FOX, D. I. Res. Assoc. * MADHAVAN, K. Res. Assoc. * LEBHERZ, H. Res. Assoc. * TURNER, D. C. Res. Assoc. * PANKOW. W. Asst. * EGLI, Mrs. M. Asst. Dept of Zool. * ULRICH, H. Prof.. Dir. * WURGLER, F. E. Prof. * CAMENZIND, R. Oberasst. Zurich, Univ. of Zurich, Anat. Inst. * TONDURY. G. Prof., Dir. * THEILER, K. Prof. KISTLER, G. Inst, of Gen. Bot, Cytol. Lab. * HOHL, H. R. Prof. Zool.-Vergl. Anat. Inst. * HADORN, E. Prof., Dir. 235 Switzerland U.K. (England) CHEN, P. S. Prof. TARDENT, P. Prof. * KUBLI, E. Asst. WEIDELI, H. J. Asst. HURLIMANN, R. Asst. * DOBENDORFER, A. Asst. * SCHMID, V. S. Asst. * NOTHIGER, R. UNITED KINGDOM (ILK.) Channel Islands St. Mary (Jersey) KROHN. P. L. Prof. (Emer.) England Ascot, Imp. College, Field Station * LEES, A. D. Sen. Princ. Sci. Off. Birmingham, Queen Elisabeth Hosp., Dept. of Surg. * WATTS, G. T. Consult. Surg. Birmingham, Dental School, Dept. of Oral. Pathol. * LAVELLE, C. L. B. Birmingham, Univ. of Birmingham, Med. Sch., Dept. of Anat. * EAYRS, J. T. Prof., Head * ECKSTEIN, P. Prof. (Endocrin.) * THOMAS, D. B. Sen. Lect. * ASHHURST, Miss D. E. Lect. * BEAUMONT, Miss H. M. Lect. * BERRY, M. Lect. * FRANCHI, L. L. Lect. * SWANSON, Mrs. H. H. Lect. * JONES, Mrs. E. C. Res. Fellow MARSTON, J. H. Lect. Dept. of Biochem. * WALKER, D. G Prof. Dept. of Genet. * WALLACE. H. Lect. Brighton, Univ. of Sussex, School of Biol. Sci. * SANG, J. H. Prof. (Genet.) * GOODWIN, B. C Reader (Developm. Biol.) * WEBSTER, G. C. Lect. (Developm. Biol.) * COLE, R. J. Lect. (Genet.) * DURSTON, A. J. Res. Fellow * COOKE, J. Res. Fellow Bristol, The Med. School, Anat. Dept. * DEUCHAR, Miss E. M. Sen. Lect. * KELLY, W. A. Sen. Lect. * THOMAS, Miss N. Res. Asst. * CHALLONER, Miss S. Res. Stud. Bristol, Univ. of Bristol, Sch. of Vet. Sci., Dept. of Anim. Husb. * BISHOP, M. W. H. Reader Zool. Dept. DODSON, J. W. Lect. PICKWORTH, Miss S. Postdoct. Fellow ROBERTS, A. Postdoct. Fellow BEBBINGTON, A. Res. Assoc. Cambridge, Gonville & Caius Coll. NEEDHAM, J. Prof. (Emer.) Cambridge, Med. Res. Council Lab. of Molec. Biol. * LAWRENCE, P. A. Staff member * CRICK, F. H. C. Head of Div. * BRENNER, S. * BRAY, D. * WILCOX, M. Cambridge, Univ. of Cambridge, Anat. School * HARRISON, R. J. Prof., Dir. * MESSAGE, M. A. Lect. * PRATT, C. W. McE. Lect. * WOOLLAM, D. H. M. Lect. * YOUNG, B. A. Lect. * STEVEN, D. H. Lect. * NAVARATNAM, V. Lect. A.R.C. Unit of Reprod. Physiol, and Biochem. * MANN, T. Prof., Dir. * ROWSON, L. E. A. Deputy Dir. * LUTWAK, Mrs. C. Princ. Sci. Off. * ADAMS, C. E. Princ. Sci. Off. * POLGE, C. Princ. Sci. Off. * BOURSNELL, J. C. Sen. Princ. Sci. Off. * HARTREE, E. F. Sen. Princ. Sci. Off. * HAY, Miss M. F. Sen. Sci. Off. * MOOR, R. M. Sci. Off. * DOTT, H. M. Dept. of Physiol., Marshall Lab. * AUSTIN, C. R. * NEW, D. A. T. * EDWARDS, R. G. Reader * WHITTINGHAM, R. G. Beit Mem. Fellow * GARDNER, R. L. Res. worker Dept. of Zool. * WIGGLESWORTH, Sir V. B. Prof. (Emer.) Cambridge, Strangeways Res. Lab. FELL, Dame H. B. Prof. (Emer.) ABERCROMBIE, M. Prof. Durham, Univ. of Durham, Dept. of Zool. * ASHBY, K. R. Lect. Hull, Univ. of Hull, Dept. of Zool. * MANNING, Miss M. J. Lect. Leeds, Med. School, Dept. of Anat. * IOANNOU, J. M. Lect. * WALLS, J. B. Lect. * TARIN, D. Lect. * STURDEE, A. P. Res. Asst. MOORE, W. J. Leicester, Univ. of Leicester, Dept. of Biochem. * GARROD, D. R. Liverpool, Univ. of Liverpool, Dept. of Anat. * HARRISON, R. G. Prof. * MACMILLAN, E. W. Dept. of Histol. HANCOX, N. M. Prof. BOOTHROYD, B. Lect. HARDMAN, G. Lect. 236 U.K. (England) BROOKS (LAWRENCE), Mrs. B. Techn. KELLAS, L. Res. Fellow Dept. of Zool. * STANISSTREET. M. Lect. Liverpool (see also Isle of Man, Port Erin) London, British Museum (Nat. Hist.), Dept. of Zool. * RICE, A. L. London, Charing Cross Hosp., Med. Sch., Anat. Dept. * GLENISTER, T. W. Prof., Dir. HAMILTON, W. J. Prof. ROSS, J. R. W. Sen. Lect. BROWN, D. Lect. London, City of London Polytechn., Dept. of Biol. * LOWERY, R. S. Lect. * MALEYVAR, R. P. Res. Stud. London, Guy's Hosp. Med. Sch., Dept. of Anat. * JOSEPH, J. Prof. * DYSON, Mrs. M. Lect. Dept. of Biol. * BAXTER, E. W. Pediat. Res. Unit * POLANI, P. E. Prof. * ADINOLFI, M. Sen. Lect. * SELLER, Miss M. J. Lect. London, Imp. Coll. of Sci. & Technol. Dept. of Zool. & Appl. Entomol. * SMYTH. J. D. Prof. London, Middlesex Hosp. Med. Sch., Dept. of Biol, as Appl. to Med. * WOLPERT. L. Prof., Dir. * HAMILTON, Miss L. London, Natl. Inst, for Med. Res. MEDAWAR, Sir P. B. Prof. * GAZE, R. M. Head Div. Developm. Biol. * TATA, J. R. Sci. Staff Member * FELDMAN, Miss J. D. Developm. Biol. Div. KEATING, M. J. Sci. Staff Member SCOTT, T. Sci. Staff Member London, Queen Mary Coll., Dept. of Zool. & Comp. Physiol. * SIMKISS, K. Prof. London, Royal Coll. of Surgeons of England * BACKHOUSE, K. M. London, Royal Free Hosp., Med. Sch., Dept. of Anat. * HARRIS, J. W. S. * ENGLAND, Mrs. M. A. Dept. of Physiol. * SLACK, Mrs. C. London, Royal Vet. Coll., Dept. of Anat. * HANCOCK, J. L. Prof. * McGOVERN, P. T. * DENT, Miss J. Res. Rellow Dept. of Physiol. & Chem. * DAWES, C. M. London, St. Thomas Hosp. Med. Sch., Dept. of Anat. * GAMBLE, H. J. Sen. Lect. U.K. (England) * HEWITT, W. Reader * SHORO, A. A. Instr. London, Univ. of London, King's Coll., Dept. of Anat. * VOLLRATH, L. Dept. of Zool. LYONS, K. M. Asst. Lect. London Hosp. Med. Coll., Anat. Dept. * BECK, F. Prof. * BURGESS, Miss A. M. C. Lect. St. Mary's Hosp. Med. School, Dept. of Anat. * BELLAIRS, A. d'A. Prof. Physiol. Dept. * NIXON, D. A. Univ. Coll. London, Dept. of Anat. & Embryol. * JAMES, D. W. Prof. * BELLAIRS, Mrs. M. R. Reader (Embryol.) * LEFFORD, Mrs. F. Lect. * WEISS. R. A. Lect. EVANS, M. J. Lect. * HOBBS, M. J. Sen. Res. Asst. WYLIE, C. C. Lect. * BACKHOUSE. Miss M. Res. Asst. * LE PATOUREL, Mrs. C. M. Res. Stud. Dept. of Anim. Genet. * GRUNEBERG. H. Prof. * LANDAUER. W. Prof. * JOHNSON, D. R. Sci. Staff M.R.C. * TRUSLOVE, Miss G. M. * DEOL, M. S. Dept. of Biochem. Pathol. * SHERBET, G. V. Sci. Staff Member * LAKSHMI, Miss M. S. Sci. Staff Member Dept. of Zool. & Comp. Anat. * O'DELL. D. S. Lect. * PRESTON, T. M. Lect. * MIDDLETON, C. A. Lect. * FOX, H. Res. Fellow * HEAYSMAN, Mrs. J. E. M. Res. Fellow * PEGRUM. Mrs. S. M. Res. Asst. * McKIEL, G. D. Postgrad. Stud. London, Zool. Soc. of London ZUCKERMAN, Sir S. Prof. Wellcome Inst, of Comp. Physiol. * WEIR, B. J. Res. Fellow * ROBERTS, Miss C. M. Res. Stud. * GULAMHUSEIN, A. P. Res. Stud. Manchester, Didsbury Coll. of Educ. * DEARDEN, M. Lect. Manchester, Univ. of Manchester, Dept. of Anat. ASHLEY, G. T. Sen. Lect. Dept. of Pathol. * BARSON, A. J. Lect. Newcasde upon Tyne, Univ., Dent. Sch., Dept. of Oral Anat. * TONGE, C. H. Prof. * BEYNON, A. D. G. Lect. * MATTHEWS, R. W. Jun. Res. Fellow Fac. of Med. Muse. Dystrophy Res. Labs., * ROSS, K. F. A. Princ. Res. Assoc. 237 U.K. (England) * JANS, D. E. Sen. Res. Assoc. * MOORE, M. J. Postgrad. Stud. * PARSONS, R. Postgrad. Stud. Norwich, Univ. of East Anglia, Sch. of Biol. Sci. * GIBSON, I. Sen. Lect. * BALLS, M. Lect. * MONNICKENDAM, Miss M. A. Res. Assoc. Nottingham, Nottingham Univ., Dept. of Zool. * MORRIS, B. Sen. Lect. Oxford, Univ. of Oxford, Dept. of Zool. * NEEDHAM, A. E. Lect. GURDON, J. B. Lect. * BILLINGTON, W. D. Res. Off. GRAHAM. C. F. Lect. Portsmouth, Portsmouth Polytechn., Dept. of Biol. Sci. * HERBERT, C. F. Reading, Univ. of Reading, Dept. of Physiol. & Biochem. * TYLER. C. Prof. Dept. of Zool. * FRETTER. Miss V. Reader * MUNTZ, Miss L. Lect. * HORNBY, Miss J. E. Lect. * HOLT, Mrs. A. C. E. Lect. Sheffield, Univ. of Sheffield. Dept. of Child Health, Congen. Anom. Res. Unit * LENDON. R. G. Sen. Sci. Off. * RALIS, Z. Dept. of Human. Biol. & Anat. CLEGG. E. J. Sen. Lect. Southampton, Univ. of Southampton, Med. Sch., Dept. of Human Morphol. * BULMER. D. Prof. Dept. of Zool. * BELL, L. G. E. Reader * BILLETT. F. S. Sen. Lect. * COCK. A. G. Lect. * WILD. A. E. Lect. * MacLEAN. N. Lect. Isle of Man Port Erin, Univ. of Liverpool, Marine Biol. Stat. NAYLOR, E. Scotland Aberdeen, Univ. of Aberdeen, Dept. of Bacterid. * SOLOMON. J. B. Marischal Coll., Dept. of Developm. Biol. * McKENZIE, J. Reader * DYER, H. McM. Lect. * WHITE, Miss J. Res. Asst. Dept. of Nat. Hist. BLAXTER. J. H. S. Lect. Dundee, Univ. of Dundee, Med. Sch., Dept. of Anat. * DICK, D. A. T. Prof. * SMART. I. H. M. Sen. Lect. * STURROCK. R. R. Lect. * WEAKLEY. Mrs. B. Lect. UK. (Wales) Edinburgh, ARC Poultry Res. Cent. Embryol. Sect. * EDE, D. A. Princ. Sci. Off.. Head * FLINT. O. P. Asst. Exp. Off. Edinburgh, Univ. of Edinburgh, Inst, of Anim. Genet. * WADDINGTON. C. H. Prof., Dir. * BEATTY, R. A. Sen. Princ. Sci. Off. * CAMPBELL, J. C. Lect. * CLAYTON. Mrs. R. M. Sen. Lect. * JACOB. J. Lect. * JONES. K. W. Lect. * JURAND. A. Lect. * LUCEY. E. C. A. (Cinematogr.) * McLAREN. Miss A. Sen. Princ. Sci. Off. * PERRY. Miss M. M. Res. Off. * ROBERTSON. Mrs. E. M. Exp. Off. * SELMAN. G. G. Lect. * TRUMAN. D. E. S. Lect. * JOHN, H. Postdoct. Fellow * BUEHR, Mrs. M. L. * PRITCHARD, D. J. Postgrad. Stud. * FORD, P. J. * BIRNSTIEL, M. L. Reader * DE SILVA, K. H. G. M. Res. Stud. * COWE, R. Dept. of Obstet. 6 Gynecol. * BAKER. T. G. Lect. Physiol. Dept. * PRESTIGE. M. C. Lect. Clin. & Popul. Cytogenet. Res. Unit * ELSDALE, T. R. Dept. of Zool. MITCHISON. J. M. Prof. TUFT. P. H. Lect. SAUNDERS, D. S. Lect. Glasgow, Beatson Inst, for Cane. Res. * PAUL, J. Glasgow, Univ. of Glasgow, Fac. of Sci., Dept. of Cell Biol. * CURTIS. A. S. G. Prof.. Head LAWRENCE. A. J. Lect. * EDWARDS. J. G. Lect. CAMPBELL, Mrs. J. A. Res. Asst. * MOORES. G. R. Lect. * JONES. G. E. Res. Stud. Dept. of Zool. * DOWNIE. J. R. Glasgow, Univ. of Strathclyde, Dept. of Biol. * PANTELOURIS. E. M. Wales Aberystwyth, Univ. Coll. of Wales. Zool. Dept. * KEMP. R. B. Sen. Res. Assoc. Bangor, Univ. Coll. of N.Wales, Dept. of Zool. * WILSON, I. B. Lect. * MORRIS. I. G. Lect. HEMMINGS. W. A. Princ. Sci. Off. * JENKINSON. E. J. Res. Fellow Forestry Dept. * DENNE. M. P. Cardiff, Univ. Coll. of S.Wales. Dept. of Anat. * MOFFAT. D. B. Prof. 238 U.K. (Wales) U.S.S.R. * PRESLEY, R. Lect. Menai Bridge, Univ. Coll. of N.Wales, Marine Biol. Dept. FOGG, G. E. Prof., Head * JONES, W. E. Lect. * REES, Mrs. L. J. Res. Fellow * GRUFFYDD, LL. D. Scient. Off. * CRISP, D. J. Prof. Personal Chair Swansea, Univ. Coll., Dept. of Zool. * KNIGHT-JONES, E. W. Prof. * KING. P. E. Sen. Lect. * RYLAND, J. S. Sen. Lect. * JAMES, B. L. Sen. Lect. * MOYSE, J. Lect. U.S.S.R. Archangclsk, Archangelsk State Med. Inst., Chair of Histol. & Embryol. BORISOV, I. N. Asst. Dalnii Zelenzy, Acad, of Sci., Murmansky Sea-Biol. Inst., Embryol. Dept. MIKHAILOVA, Mrs. I. G. Head PRASDNIKOV, E. Kerch, Azov Black Sea Res. Inst, of Marine Fish. Managem. & Oceanogr., Lab. of Physiol, of Fishes * APEKIN, V. S. Chief * MOISEEVA, Mrs. E. B. Sci. worker Kharkov, Kharkov State Univ., Dept. of Biol. * KUDOKOTSEV, V. P. Reader * HELFENBEIN, L. L. Reader Kiev, Acad, of Sci. of the Ukraine, Inst, of Zool., Dept. of Cytol. & Histogen. * MAZHUGA, P. M. Prof., Chief Kutaisi, Pedagog. Inst., Lab. of Developm. Biol, of the Poultry * GOSHCHETELIANI, I. S. Head Leningrad, Leningrad State Univ., Biol. Inst. * PERSOV, G. M. Dir. Lab. Exp. Ichthyol. * SAKUN. Mrs. O. F. Sen. Sci. worker * FALEEVA, Miss T. I. Jun. Sci. worker * ZUBOVA, Mrs. S. E. Jun. Sci. worker * GAGINSKAYA, Mrs. E. R. Jun. Sci. worker Biol. Fac, Dept. of Embryol. * TOKIN, B. P. Prof., Head * IVANOVA, Mrs. O. M. Prof. * KOROTKOVA, Mrs. G. P. Doc. * MOVTCHAN, Mrs. N. A. Doc. GABAJEVA, Mrs. N. S. Doc. * KRITCHINSKAYA. Miss E. B. Asst. * POLTEVA, Mrs. D. G. Asst. * LOSEVA, Mrs. L. M. Collab. * NIKITIN, N. S. Collab. * PYLILO, Miss I. V. Collab. * EFREMOVA, Mrs. S. M. Collab. * KNJAZEVA, Miss R. A. Collab. * MALIKOVA, Mrs. I. G. Collab. Listvenitchnoie sur Baikal, Inst. Limnol. de l'Acad. des Sci., Lab. Ichthyol. TCHERNIAEV, G. Cherch. Moscow, Acad, of Med. Sci. of the USSR, Inst, of Human Morphol. * VYAZOV, O. E. Prof.. Head Lab. Embryol. * LIOSNER, L. D. Head of Lab. * AVERKINA, Mrs. R. F. Sen. Sci. * BABAYEVA, Mrs. A. G. Sen. Sci. * ORLOVA, Mrs. I. I. Sen. Sci. * ROMANOVA, Mrs. L. K. Sen. Sci. * RYABININA. Miss Z. A. Sen. Sci. * SIDOROVA, Mrs. V. F. Sen. Sci. * TITOVA, Mrs. I. I. Sen. Sci. * BARABANOV, V. M. Jun. Sci. * KHARLOVA. Mrs. G. V. Jun. Sci. * MURASHOVA, Miss A. I. Jun. Sci. * VERBICKY, M. Sh. Jun. Sci. * TIMASHKEVICH, Mrs. T. B. Jun. Sci. Inst, of Med. Genet. * LAGUCHEV, S. S. Lab. of Cytol. * MARKELOVA, Mrs. I. W. Moscow, Acad, of Sci. of the USSR, Inst, of Developm. Biol. * ASTAUROV, B. L. Prof., Dir. * AISENSTADT, T. B. Res. worker * AKHABADZE, L. V. Res. worker BERDYSHEVA, Miss L. V. Res. worker BUZNIKOV, G. A. Sen. Res. worker * DANILOVA, L. V. DAVIDOVA, S. I. * DETTLAFF, Mrs. T. A. Prof., Head Lab. Exp. Embryol. * GINSBURG. Mrs. A. S. Sen. Res. worker GINZBURG, G. I. Sen. Res. worker * GOLISHEVA, Miss G. * HOPERSKAYA, Mrs. O. A. Res. worker * IGNATJEVA. Mrs. G. M. Sen. Res. worker * KANTOROVA, Mrs. V. I. Res. worker KOSTOMAROVA, Mrs. A. A. Res. worker * LOPASHOV, G. V. Prof., Head Lab. Organogen. * MALIOVANOVA. Mrs. S. D. Res. worker MANUKHIN. B. N. Sen. Res. worker MARKOVA, Mrs. L. N. Res. worker * MARSHAK, Miss T. L. MILMAN, L. S. Sen. Res. worker * MITASHOV, V. I. Res. worker * MITSKEVICH. M. S. Prof. NEYFAKH, A. A. Prof., Head Lab. Biochem. Embryol. * NIKITINA, Mrs. L. A. Res. worker NIKOLSKAYA. Miss I. S. Res. worker * POLEZHAEV, L. V. Prof., Head Lab. Exp. Morph. RADZINSKAYA, Miss L. I. Res. worker RAMENSKAYA, Mrs. G. P. Res. worker ROTT. Mrs. N. N. Sen. Res. worker * RUDNEVA, Miss T. B. * SADOKOVA. Miss I. E. Res. worker * SINITSINA, Miss V. F. 239 U.S.S.R. SMITTEN, Mrs. N. A. * SOLOGUB, Miss A. A. * STROEVA, Miss O. G. Sen. Res. worker Res. worker Sen. Res. worker * STRUNNIKOV, V. A. * TEPLITZ, Miss N. A. Res. worker * TUCHKOVA, Mrs. S. J. Res. worker * VASSETZKY, S. G. Res. worker * VEREISKAYA, Miss V. N. Res. worker YUROVITZKY, Yu. G. Sen. Res. worker ZOTIN, A. I. Prof., Head Lab. Developm. Biophys. Inst, of Evol. Morph. & Ecol. of Anim. * EMELIANOV, S. V. Prof., Chief Lab. * SCHMIDT. G. A. Prof. * DRAGOMIROV, N. I. Prof. * BAEVSKY, J. B. * RAGOZINA, Mrs. M. N. * KOSHELEV, B. W. * ZUSMAN, I. N. Inst, of Gen. Genet. Phenogenet. Lab. * KONYUKHOV, B. V. Prof., Chief * SAZHINA, Miss M. V. Jun. Sci. worker * MALININA, Mrs. N. A. Jun. Sci. worker * PASCHIN, Y. V. Sen. Sci. worker Moscow, Moscow Med. Inst., Dept. of Gen. Biol. II DOBROKHOTOV, V. N. Head Moscow, Moscow Stomatol. Inst., Dept. of Histol. & Embryol. FALIN, L. I. Prof, Head Moscow, Moscow Univ., Biol. Fac, Chair of Embryol. - POPOV. V. V. Prof., Dir. * BELOUSOV, L. V. Sen. Res. worker * DABAGIAN, Mrs. N. V. Lect. FARBEROV, A. I. Res. worker GOLICHENKOV. V. A. Lect. MANUILOVA, Mrs. N. A. Sen. Res. worker MELYUHINA, Mrs. L. V. Res. worker OSTROUMOVA. Mrs. T. V. Res. worker POPOV. D. V. Res. worker POTEMKINA, Mrs. D. A. Sen. Lect. Yugoslavia SMIRNOVA. Mrs. I. E. Sen. Lect. SOKOLOVA. Mrs. Z. A. Res. worker Novosibirsk, Inst, of Cytol. & Genet. Group of Developm. Genet. * KOROCHKIN, L. I. Prof.. Head Obninsk, Inst, of Med. Radiol., Lab. of Radiobiol. * GINTER. E. K. Res. worker Tbilisi, Acad, of Sci. of the Georg. SSR, Inst, of Exp. Morph., Dept. of Biophys. * TUMANISHVILI, G. D. Prof., Head * JANDIERI, Miss K. M. Sen. Sci. worker * SALAMATINA, Miss N. V. Sen. Sci. worker Inst, of Zool., Dept. of Anim. Embryol. * CHANTURISHVILI, P. S. Prof., Head * OTZCHELI, Mrs. T. A. * KORKIA, Mrs. I. K. * KANKAVA, Mrs. B. Z. * KURULAHVILI, Mrs. L. I. * KINCURASHVILI, Mrs. N. I. * SICHAZULIDZE, Mrs. T. A. Inst, of Zool., Lab. of Cytol. * KVINIKHIDZE, Mrs. G. S. Head Vladivostok, Inst, of Marine Biol. * KASYANOV. V. L. WALES (see UNITED KINGDOM) YUGOSLAVIA Beograd, Inst, of Nucl. Sci. ..Boris Kidric", Dept. of Exp. Histol. & Organ Cult. MARTINOVITCH. P. N. Head Zagreb, Univ. of Zagreb, Fac. of Med., Inst, of Biol. * SKREB, N. Prof. * LEVAK, Mrs. B. Asst. * MOLLER, M. Asst. * HOFMAN, Miss I. Asst. * SERMAN. D. Asst. * SOLTER, D. Asst. Inst, of Histol. & Embryol. * POSINOVEC, Mrs. J. Prof. * DOMAC, Mrs. B. Doc. * SVAJGER, A. Doc. * KOSTOVIC, Mrs. Lj. Asst. * DURST, Mrs. B. Asst. 240 SUBJECT INDEX (alphabetical order) New heading: Neurotransmitters Although the Index is intended to be self-explanatory, some introductory remarks may be useful. The Index covers not only embryology, but the whole of developmental biology. It is composed of headings (large capitals) and entries (small print and small capitals). The names printed in small capitals refer to the Directory of Names, where the corresponding research subjects may be found. The headings generally come under one of the following categories: 1 ) dis- ciplines, 2) techniques, 3) cells, organs and other body components, 4) sub- stances or classes of substances, 5) developmental stages, processes or factors. Since virtually all the entries in the Index refer to developmental processes, the word "development" is omitted unless used in a general sense. In general, an attempt has been made to start the entries with the most informative word, but it was impossible to avoid that entries sometimes start with an adjective of a rather unspecific character, such as: comparative, descriptive, experimen- tal; abnormal, normal; early, late. Such entries are easily overlooked in a search for specific information, particularly in the longer sections. Entries also fre- quently start with such phrases as "effect on/of" and "relation with". Preposi- tions very seldom figure as the first word of an entry (except in the phrase "in vitro"); where they do, they are found at their proper place in the alphabet. In order to increase the efficiency of the Index, special care has been devoted to cross-references. Moreover, subjects have been brought under as many headings as possible. This of course results in a certain amount of redundant information, but it is felt that this is outweighed by the greater chance for the user of finding a particular subject he is interested in. All the work on multicellular plants and on slime molds is brought together under one heading: "Plant Embryology & Morphogenesis (experimental & physiological)". All the work on unicellular organisms (including unicellular plants) is listed under the heading "Unicellular Organisms". Genus and species names are not used in the entries, with the exception of the designation Homo for the human species. For various reasons it is impossible to provide a separate taxonomic index. Those who are looking for work on a specific taxonomic group are advised to start with the headings of a general nature, such as "Asexual reproduction", "Development", "Em- bryology", "Life cycles", "Metamorphosis", "Morphogenesis'', "Plant em- bryology & morphogenesis", "Regeneration", "Reproduction", "Unicellular organisms", etc. In the case of work carried out jointly by two or more investigators, all collaborators are listed in alphabetical order. Since initials of first names are omitted from the entries, it may sometimes be necessary to check two or more investigators of the same surname in the Directory of Names. 241 ABDOMINAL CAVITY see Body cavities ABNORMALITIES see Anomalies (early development); Malformations see also Teratogenesis ACCESSORY SEX GLANDS see Reproductive system ACTIN see Muscle(s) ACTINOMYCIN see also Antibiotics effect on development, Polychaeta MANSUETO & regeneration, Amphibia, Echinoidea WOLSKY early differentiation of oocyte, Anura FICQ enzyme development in kidney, Rodentia SCHIEBLER meso- & ectoderm in vitro, cytology, Anura KELLEY pigment cells, Anura, Aves KRAMER primordia differentiation, Lagomorpha GERHARDT effects, injection into egg, Coleoptera MAISONHAUTE egg, incorporation, Ascidiacea MANSUETO lens, binding tot DNA, Aves MODAK ACTIVATION see Fertilization ADAPTATION to high temperatures, Nematoda BRUN ADHESIVE GLAND see Gland(s) ADIPOSE TISSUE(S) see also Lipid(s) biochemistry, ultrastructure, mitochondria, Rodentia BARNARD fat body, cell death, effect of internal environment & lysosomes, Diptera BUTTERWORTH , effect of hypophysectomy, Aves WATTERSON , enzymes, Lepidoptera PANT SHARMA , kynurenine deposition, Diptera KIMMEL , ultrastructure, cytochemistry, Coleoptera LABOUR 1 yolk protein, Diptera HAGEDORN — cells, function & structure, regulation by mutant genes, Diptera RIZKI hormonal & genetic control, cellular & biochemical, Diptera BUTTERWORTH ADRENAL GLAND see also Cortisone; Insulin; Steroids comparative morphology & histo- chemistry, Anura, Rodentia FORTAK correlation with hypophysis & gonads, Aves WOODS cortex, electron microscopy, biochemistry, culture, Rodentia ROOS — function, effect of encephalectomy, Lagomorpha, Rodentia MITSKEVICH differentiation, chorioallantoic graft, Aves CHE VALUER effect of ACTH, Rodentia DOMAC enzyme activity, correlation to function, Aves PEDERNERA hormones, histochemistry, Aves WOODS hyperadrenocorticalism, maternal, effect on adrenal and placental hormones, Rodentia HOAR hypoadrenocorticalism, maternal, effect on central nervous system, Rodentia HOAR hypothalamic & pituitary control, Anura, Urodela THURMOND medulla, cells containing epinephrine & nor-, histochemistry, Rodentia VERHOFSTAD — , — , histochemistry, electron microscopy, Rodentia WOOD — , comparative histochemistry, Anura, Homo, Rodentia KMIEC — , monoamines, Rodentia ARVIDSSON organ culture, endocrine activity, Homo, Rodentia ZAAYER pre- & postnatal, part, transient zone, histochemistry, electron microscopy, Rodentia CANNON SUCHESTON reaction to antigens, Aves OTZCHELI regeneration, Rodentia FORTAK relation with hypophysis, Aves HALL , Aves, Mammalia MOOG , effect of chemical inhibitors, Teleostei OLIVEREAU role in limb regeneration, Anura NIAZI size, control, Aves HALL ultrastructure, Aves DOLLANDER HATIER GRIGNON — , Vertebrata PEHLEMANN — , hormonal activity, in vivo & in vitro BUKULYA GYEVAI MIHALY STARK SZALAY AGE (AGING) cells, physiology & biochemistry, Mammalia NORMAN effect on developmental capacity of egg, Rodentia BEAUMONT endoplasmic reticulum membrane enzymes, Rodentia WIDNELL flight muscle, enzymes, morphology & physiology, Diptera BAKER lung, Lagomorpha, Rodentia ALBRIGHT maternal, effect on morphology & development of fertilized eggs, Rodentia JONES physiology, effect of x-rays, Diptera ROCKSTEIN tissue regression, Aves, Homo, Rodentia HAY uterine changes, effect on embryo, Lagomorpha, Rodentia MAURER AGGREGATION see Cell(s) see also Tissue culture AIR BLADDER see Lung(s) AIR SACS see Lung(s) ALGAE see Plant embryology & morphogenesis see also Unicellular organisms ALIMENTARY TRACT see Digestive tract ALKYLATING AGENTS effect on embryonic DNA & DNAse, Aves TEMPEL phosphatases & lvsosomes, Aves TEMPEL TEM, patterns of effects & treatment- phase specif ity, Aves KOCHER — , phenocopy & interactions with Polydactyly gene, Rodentia KOCHER ALLANTOIS see Embryonic membranes AMINO ACID(S) blastocyst fluid, uterine secretions & blood serum, Lagomorpha, Rodentia BENTYN CHOROSZEWSKA brain, Rodentia KURIYAMA cytophotometry, interordinal hybrids, Echinoidea BROOKBANK free, relation to protein synthesis, Teleostei, Urodela CRAWFORD kynurenine, deposition in fat body, Diptera KIMMEL metabolism, regeneration, Amphibia ANTON reiterated DNA sequences, RNA hybridization JONES 242 retina regeneration, Urodela MITASHOV tryptophane, Echinoidea TONEBY — metabolism, tissue specific enzymes, early stages, Anura KOSTELLOW AMITOSIS see Mitosis AMNION see Embryonic membranes ANDROGENESIS see Genetics ANESTHESIA ANEUPLOIDY see Heteroploidy ANIMAL GRADIENT (animalization) see Gradients see also Embryology (experimental); Embryology (physiological) ANOMALIES (early development) see also Pathology; Teratogenesis cell physiological mechanisms, Amphibia DUSPIVA karyotype, Homo SASAKI lethal factors, Diptera SCRIBA maternal factors, Homo NISHIMURA spontaneous & induced, Lagomorpha, Rodentia AUSTIN ANOMALIES (later development) see Malformations see also Teratogenesis ANOXIA see Respiration ANTIBIOTICS see also Actinomycin amanitin, effect on morphogenesis, Amphibia BRACHET cytochalasin, effect on cleavage, electron microscopy, electrophysiology, Anura embryo, Echinoidea , Reptilia metamorphosis, Anura BLUEMINK LAAT GOLDIE SMITH — , embryo, Aves — , lymphocytes, Homo — , neuropore closure, Aves, Rodentia — , tonofilaments, epidermis, Teleostei — , teratogenesis, Aves effect on development & regeneration, Amphibia, Echinoidea embryo, Anura germ cells, ultrastructure, Orthoptera TAHMISIAN tooth development, Rodentia FITZGERALD hadacidin, effect on limb primordia, histochemistry, Rodentia inhibition of sex-reversal by steroid hormones, Anura SHEPARD BEREITER SMITH WOLSKY MIGLIORINI MILAIRE mitomycin, teratogenesis, Aves penicillin, effect on early development, Aves puromycin, effect on cleavage & morphogenesis, Gastropoda — , meso- & ectoderm in vitro, cytology, Anura — , on morphogenesis, Aves rifampicin, effect on morphogenesis, Amphibia STAGNI VANNINI KING WIERTZ BOON KELLEY BARBOSA BRACHET streptomycin, effect on early development, Aves WIERTZ ANTIBODIES see Immunology ANTIGENS see Immunology ANTIMETAB OLITES effect on development, Teleostei & regeneration, Amphibia, Echinoidea HORSTADIUS VASSE KLEINLOGEL WEBER morphogenesis, Aves NABER neuroglia at pupation, Lepidoptera PIPA fluorouracil, teratogenesis, Echinoidea, Rodentia SKALKO — , effect on imaginal disc, lepidoptera LAFONT induction of morphological aberrations, Diptera SCHARLOO methotrexate, teratogenesis, Echinoidea, Rodentia SKALKO morphogenetic movements, Aves MANASEK nuclease inhibitors, Aves TEMPEL nucleic acid analogues, effect on morphogenesis, Diptera RIZKI pyrimethamine, induction of oro-facial malformations, Mammalia COLEMAN teratogenesis, Rodentia MERCIER TUCHMANN therapeutical use, teratogenesis, Rodentia CHAMBERLAIN (5-2-thienylalanine, effect on neural crest & skin differentiation, Aves, Rodentia KOLLAR ANTIMITOTIC AGENTS effect on gestation, Rodentia MERCIER TUCHMANN BODELET PEARCE BARASA JONEJA CLAVERT hematopoiesis, Aves lens crystallins, Aves nerve fibre in vitro, Aves podophyllia, vinblastine, vincristine, teratogenesis, Rodentia teratogenesis, Aves, Mammalia ANTLERS see Horns AORTA see Vascular system see also Heart (& great vessels) APICAL DOMINANCE see Gradients; Plant embryology & morphogenesis ARCHENTERON (roof) see Gastrulation; Neurulation see also Induction ASEXUAL REPRODUCTION (& development) budding, comparative study, Hydrozoa PARK — , metabolic gradients, Hydrozoa BELOUSSOV compound forms, Ascidiacea WATANABE Hydrozoa BERRILL medusae buds, stability & metaplasia, Hydrozoa SCHMID microcinematography, autoradiography, Porifera EFREMOVA morphogenesis, Hydrozoa POLTEVA — , ultrastructure & origin of germ cells, Ascidiacea morphogenetic potentiality of somatic cells, Porifera Polychaeta Porifera KOROTKOVA role of cell movements & mesoglea during IZZARD NIKITIN BERRILL budding, Hydrozoa nervous system, Turbellaria segmentation, Trematoda statoblast germination, Bryozoa strobilation, Scyphozoa Turbellaria SHOSTAK TOROK BILQEES ODA KATO BENAZZI IVANOVA TOKIN KRITCHINSKAYA MORACZEWSKI PETERS WOLSKY ASYMMETRY see Symmetry AUDITORY ORGAN external ear, chondrogenesis, Rodentia , regeneration, Lagomorpha functional maturation, perinatal, Carnivora induction, Urodela inner ear, mutant, developmental genetics, Rodentia SVAJGER JOSEPH MARTY JACOBSON DEOL 243 AUDITORY ORGAN (contd.) relation to swim bladder, Teleostei MOULTON sound-conducting apparatus, Amphibia, Reptilia FRANK teratogenic effect of vitamin A, Rodentia HAYASKI AUTONOMIC NERVOUS SYSTEM adrenergic inhibitory terminals, Rodentia CSILLIK KALMAN KNYIHAR peripheral, culture, electron microscopy, histochemistry, Aves, Rodentia PRESLEY sympathetic chain, monoamines, Rodentia ARVIDSSON — system, growth control mechanism LEVI vegetative ground plexus, histochemistry, Rodentia CSILLIK KNYIHAR AUTORADIOGRAPHY see also Electron microscopy; Radio-isotopes amines, exogenous, embryo, Echinoidea asexual reproduction, Porifera bones & teeth, Vertebrata brain, basal telencephalic areas, Rodentia LUNDGREN EFREMOVA LEBLOND LAMMERS KEYSER — , cell generation cycle, Rodentia HOSHINO — , cortex, Mammalia BLOSS — , development, normal & abnormal, Aves, Rodentia LANGMAN — , diencephalon, Rodentia KEYSER cell migration between germ layers, Aves AZAR CNS, cellular kinetics, Aves OJEDA cytoplasmic components, influence on gene transcription, Amphibia, Gastropoda GEUSKENS decidual cells, origin & fate, Rodentia MAIBENCO early embryo, Rodentia MAIBENCO egg maturation, nucleic acid metabolism, Amphibia HANOCQ endocrine control of differentiation, Lepidoptera BERRY eye, cornea, protein secretion, Aves HAY — , differentiation, relation of ultra- structure & protein synthesis, Aves KVINIKHIDZE — lens & neural retina regeneration, Urodela REYER — , retina, regeneration, Anura DABAGIAN — , — , receptors, time preceding differentiation, Aves MORRIS gonads, after irradiation & steroid treatment, Aves GASC heart primordium, cell migrations, Aves DeHAAN histones, hormones, RNA & protein, neural crest in vitro, Anura ANDREW GABIE hypothalamus, Rodentia IFFT limb skeleton, regulation & competition, Aves KIENY metaplasia of eye tissues, Anura SOLOGUB mitotic activity, brain & spinal cord, Aves OPPENHEIM muscle development in vivo, Aves, Rodentia LANGMAN neural crest, Anura HERBERT , localization, migration & diffe- rentiation, Aves CHEVALLIER neuroblast, effect of irradiation, Orthoptera COLE neurosecretion, Polychaeta MULLER nuclear migration, neural epithelium, Aves CORLISS nuclei, embryonic, Urodela CHIBON nucleic acids, endopolyploid nuclei, Diptera, Lepidoptera GILLOT metabolism, Lepidoptera BERRY synthesis, larva, Diptera MATTINGLY oocyte, lampbrush chromosomes, nucleolus, nucleoplasm, Amphibia MILLER oogenesis, Diptera WATSON — , Rodentia VAKAET — & early development, basis proteins, Echinoidea BACKSTROM — , morphogenesis, Asteroidea, Amphibia FICQ — , nucleus, Aves, Teleostei GAGINSKAYA — , protein, Coleoptera, Diptera SCHAFER organ primordia, morphogenetic move- ments, Aves STEDING palate, normal & cleft, Rodentia COLEMAN placenta, effect of teratogens, Rodentia KERNIS primordial germ cell migration, Aves SHOGER proteins, immunology, Homo ADINOLFI — , synthesis, differentiation MELLER — , — , localization during cleavage, Gastropoda WAL RNA & protein, ribosomal, synthesis, Diptera KIEFER — localization in embryo, Gastropoda, Polychaeta ANDERSON sex differentiation, Anura ZACCANTI skin, cell types, Aves M AUGER spermatogenesis, prepuberal animals, Rodentia HUCKINS syndactylism, experimental, Rodentia MILAIRE BACTERIA see also Unicellular organisms differentiation of infected cells, Blattariae BROOKS effect on fetus, role of placenta & fetal membranes, Rodentia FEDINEC inducing metamorphosis, Hydrozoa MULLER streptococcal toxins, teratogenesis, Rodentia MANKOWSKA BEAK malformations after neural crest removal, Aves LAWRENCE morphogenesis, epithelio-mesenchymal interaction, Aves HAYASHI BEHAVIOUR (embryonic & postnatal) Aves GOTTLIEB effect of disturbances in nervous system, Rodentia AUROUX HAMBURGER mutant, Urodela TOMPKINS embryonic, Aves OPPENHEIM — , correlation with brain development, Aves HARTH — development, comparative study, Aves HARTH larval, settling, Gastropoda HADFIELD — , — , metamorphosis, Polychaeta KNIGHT learning, effect of maternal nutrition, Rodentia AUROUX locomotion in animals with supernumerary limbs, Urodela BRANDLE maturation of spontaneous & reflex activity, Aves CORNER motor skill, effect of cerebellar retardation, Rodentia ALTMAN pouch-young, Marsupialia OPPENHEIM relation with EEG, Aves CORNER growth of sense organs, Diptera DEARDEN neurogenesis, Amniota DECKER Rodentia HAMBURGER role of xenoplastic neural plate transplants, Anura ANDRES sleep cycle, Rodentia FASANELLO Teleostei ARMSTRONG Urodela ARMSTRONG BIDDER'S ORGAN experimental embryology, Anura VANNINI germ cell differentiation, Anura GHIRARDELLI RADO oogenesis, effect of hormones, Anura GARDENGHI ZACCANTI BIOCHEMISTRY see also specific substances; Energy; Enzyme(s); Immunochemistry; Respiration adipose tissue, Rodentia BARNARD adrenal cortex, culture, Rodentia ROOS amines, exogenous, autoradiography, Echinoidea LUNDGREN animal & vegetative gradients, Echinoidea KINOSHITA asexual reproduction, Porifera EFREMOVA ATP-ase, brain, Aves SEDLACEK ATP synthesis, relation to morphogenesis & differentiation, Teleostei, Urodela CRAWFORD 244 biosynthesis, larva & adult, Lepidoptera SCALI blastoderm in vitro, labeled metabolites, Aves BAKER bone, Rodentia GAILLARD — , enzymes, Anura, Aves McWHINNIE cell differentiation, translational factors, Mammalia HOLLAND _ surface AKSHMI SHERBET , intestinal epithelium, Aves, Mammalia MOOG centrifugation, ultra-, effect on mitosis BEAMS chondrocytes in vitro, differentiation, Aves KVIST chromosomes, Homo HAKANSSON — , Lagomorpha SANDAHL differentiation, pigment cells, muscle, Urodela WILDE early development, Anuta, Lepidoptera BROWN CLASON LIZARDI SUGIMOTO SUZUKI , Echinoidea CZIHAK — embryo, Mammalia LUTWAK — stages, Anura MELTON effect of barbituric compounds, Aves OJEDA hypoxia, Aves GRABOWSKI irradiation, Anostraca NAKAZAWA , Anura, Teleostei TAGUCHI YAMADA egg differentiation, Pulmonata MORRILL — shell formation, Platyhelminthes GERZELI electrophoresis, protein changes, early development, Anura STANISSTREET electrophoretic fractions of specific primordia & cells, influence on differentiation, Urodela WILDE embryo, Ascidia, Mollusca, Oligochaeta MANCUSO embryonic determination, Echinoidea LALLIER — liquid, effect of injuries, Aves, Rodentia ELIAS epidermis, Homo, Rodentia STERN fertilization membrane, Echinoidea INOUE fetal & postnatal development, Rodentia NAKAZAWA general & mucopolysaccharides, Echinoidea IMMERS germ cell nucleus, changes after ferti- lization, Echinoidea TERAYAMA growth & metamorphosis, Diptera, Lepidoptera SHAPPIRIO hemoglobin synthesis, Aves WILT imaginal maturation, Insecta ROCKSTEIN — — , hormonal control, Diptera, Hymenoptera GRAY incorporation of radioactive precursors into eggs, Polychaeta TWEEDELL inductive agents, Aves, Urodela SASAKI inhibitors of protein synthesis, develop- mental effects, Echinoidea CHENEY inorganic salts in lung & liver, compared to level in blood plasma, Anura, Rodentia WYSOCKA integument of foot & mantle, Mollusca BOLOGNANI intermediate metabolism, early develop- ment, Anura FERNANDEZ MICELI SALOMON intestinal epithelium, microchemistry, Rodentia BOTH intestine, effect of x-rays, Aves GASC lactate dehydrogenase isozymes, Teleostei WHITT lens dedifferentiation, Urodela YAMADA lipovitellins, oocyte & hemolymph, Crustacea KERR liver, cellular differentiation, Aves HOUSSAINT LE DOUARIN — , in vitro, Rodentia CROIZAT — , metamorphic differentiation, Anura COHEN macromolecules, early stages, Anostraca, Echinoidea MANO — , cell membrane, Rodentia COMOGLIO — , lens, Aves BELL — , maternal, transfer to oocyte & embryo, interrelation with macromolecules in oocyte, & embryo, Lagomorpha, Rodentia GLASS — , mother-to-egg transfer, Anura NACE — , role in fertilization, Anura NACE — , synthesis, Echinoidea BAKER — , — , eye lens, Aves, Rodentia ZWAAN — , — , , in vitro, Aves YOSHIDA melanin synthesis, regulatory mechanisms, Ascidiacea, Aves WHITTAKER melanogenesis, Anura BROWDER metabolites, effect on liver histogenesis in vitro, Aves LEVENSON metamorphic competence in early stages, induced by thyroid hormones, Anura TATA metamorphosis, Anura SPIEGEL microtubules, nerve tissue FRIEDKIN mitochondria, embryo, comparative study, Anura KISTLER WEBER molecular aspect of arm formation, larvae, Echinoidea FINNEGAN LARRIVEE — basis of symmetry, Vertebrata WILDE — biology, mast cells, Rodentia CSABA , oogenesis & early embryo, Anura, Echinoidea, Gastropoda DAVIDSON HOUGH mucin coat, blastocyst, Lagomorpha KILLE muscle differentiation, Anura, Aves HAYASHI HIRABAYASHI nerce cells, processes, in vitro, Aves BRAY nervous system, myelinization, Mammalia WENDER neural induction & early differentiation, Anura DEUCHAR nucleic acids, nucleotides, cofactors, Amphibia, Teleostei DUSPIVA protein ratios, growth & differen- tiation, Rodentia BRYAN nucleolus, oogenesis, Polychaeta STAGNI oogenesis, Anura DENIS MAIRY WEGNEZ — , Echinoidea TSUKAHARA organogenesis KISCHER phosphagens, egg & spermatozoa, Echinodermata YANAGISAWA phosphate metabolism of embryo, tracer studies, Echinodermata YANAGISAWA polyphosphates, effect on embryo, Aves ORTMANN porphyrin synthesis, development & regeneration, Nemertea VERNET precursors, radioactive, incorporation, Aves DESVEAUX primary induction factor, Anura FAULHABER pterins, role in pigment formation, Amphibia OBIKA pyrimidine synthesis, Rodentia KRETCHMER regeneration, Annelida DURANTE PUCCIA relation to growth in vitro, Aves HICKEY KLEIN reproduction, Elasmobranchii, Mammalia Mollusca MANN rhodopsin cycle, postnatal, Carnivora BONTING DAEMEN semen, Mammalia MANN skin derivatives, Aves, Rodentia KISCHER spermine, effect on differentiation & morphogenesis, in vivo & in vitro, Aves BUTROS spermatogenesis, molecular mechanism, Diptera SANDERS spermatozoa, Mammalia HARTFREE stimulation of regeneration, Coelenterata GOODWIN subcellular organelles, molecular assembly SIMON tail resorption, in vitro & in vivo, Anura DERBY teratogenesis, Aves, Carnivora, Rodentia SCHULTZ testis, descent, Mammalia WENSING tissue breakdown, metamorphosis, Lepidoptera LOCKSHIN tooth, extracellular substances, Lagomorpha SLAVKIN uridine metabolism, Polychaeta SCHROEDER wound healing, vascular response, Rodentia MAKINEN RAEKALLIO xanthines, dimethylated, effect on development, Echinoidea CHENEY — , methylated, effect on oxygen consumption, early development, Echinoidea CHENEY X-irradiation, early stages, Urodela ALEXANDRE 245 BIOGENIC AMINES see Neurotransmitters BIOMETRY see Growth BIOPHYSICS see also specific physical agents; Energy artificial weightlessness, effect on early development, polarization, Anura, Nematoda BRIEGLEB TEUCHERT , metamorphosis, Anura TEUCHERT — — , development, Coleoptera BRIEGLEB bioelectric patterns, limb, Urodela ROSE brain, fetal, Aves, Mammalia SEDLACEK cell electrophoresis, different regions, gastrulation, Anura BRICK , early embryo, Anura, Aves EISENBERG — interactions WEISS — surface LAKSHMI SHERBERT cellular adhesion, Anura, Aves, Porifera STEINBERG cytokinesis, Anura, Crustacea, Echinoidea RAPPAPORT dielectric constant, effect on cell adhesion, Aves JONES eggs, Echinoidea HIRAMOTO electric fields, gastrula, Anura GOODWIN on embryonic surface, correlated with cell migrations, Anura KOSTELLOW MORRILL — potential, effect of teratogens on placental function, Rodentia KERNIS electrical activity, Anura MACKLIN — communication between blastomeres, Echinoidea SAUNDERS — coupling, cleavage, Amphibia LAAT — stimulation of regeneration, Coelenterata GOODWIN electrophoretic mobility indicating changes in cell periphery, Aves MASLOW electrophysiology, brain, Rodentia SCHADE — , cells, contacts & movements, Anura, Aves, Teleostei TRINKAUS — , central nervous system, Anura, Aves CORNER — , cochlea & vestibular system, Carnivota MARTY — , early stages, Anura, Urodela SLACK — , effect of cytochalasin on cleavage, Anura LAAT — , embryonic heart, Aves DeHAAN — , fetal brain, Aves, Mammalia SEDLACEK — , heart, Urodela GROS — , membrane properties, heart & muscle, Rodentia, Urodela BERNARD GARGOUIL — , nervous system, in vivo & in vitro, Aves SUBURO — , potential, spermatid, Artiodactyla, Rodentia NELSON — , regenerating nerves, Teleostei, Urodela MARK — , reinnervating muscle, Teleostei, Urodela MARK — , retinogram, postnatal, Carnivora BONTTNG DAEMEN — , trophoblast, Rodentia CROSS electroretinography, Tetrapoda WEIDMAN embryo-maternal relations, Artiodactyla ALEXANDER embryonic cell surface, Vertebrata CURTIS — liquid, effect of injuries, Aves, Rodentia ELIAS gravity, effect on bone, Rodentia FELTS isoelectrofocusing, cell surface charge, morphogenetic movements, Aves RAO lactate dehydrogenase isozymes, Teleostei WHITT laser alteration of mitochondria, role in cell communication, Rodentia BERNS magnetic field, effect on nervous system, Anura BONDI mechanics, bone, Homo, Mammalia FELTS membrane permeability, cleavage, Amphibia LAAT , early stages TUPPER space flight, effect on reproduction, Insecta GROSCH BIRTH development of fetus at moment of birth, Mammalia NAAKTGEBOREN effect of neonate, Aves, Homo, Rodentia PRINS initiation, Artiodactyla BERTON BLADDER see Urogenital system BLASTEMA see Regeneration (traumatic) BLASTOCYST see also Cleavage annulate lamellae, Lagomorpha, Rodentia GULYAS cells introduced into, Artiodactyla, Lagomorpha MOOR determination & differentiation, Rodentia GARDNER development & implantation, Lagomorpha, Rodentia HARPER diapause, factors causing resumption of development, Marsupialia TYNDALE effect of oviduct secretions on development, Lagomorpha HAMNER uterine proteins, Homo, Lagomorpha BEIER electron microscopy, autoradiography, histochemistry, Rodentia DAMJANOV SKREB SOLTER , Homo, Rodentia MARTINEK , Lagomorpha, Marsupialia TYNDALE embryonic diapause, maternal endocrine, glands, Mammalia BAEVSKY formation, biochemistry & ultrastructure, Lagomorpha, Rodentia GULYAS genetics & embryology, Homo, Mammalia EDWARDS grafting of embryonic cells, X-chromosome markers, Rodentia GARDNER hormone action on nucleic acid & protein synthesis, Rodentia PRASAD implantation, Rodentia GWATKIN MAIBENCO ROBERTS WILSON — , cellular exchange with endometrium, Rodentia MULNARD — , control, Rodentia MINTZ delayed, Carnivora, Rodentia ADAMS — , DNA, RNA & protein synthesis, Mammalia GULYAS — , effect of steroids, Rodentia PRESLEY — , physiological & experimental, interactions with uterus, Rodentia McLAREN ultrastructure, Carnivora GULAMHUSEIN effect of changes in uterine environ- ment, Rodentia endocrine aspects, Rodentia factors involved, Carnivora, Rodentia hormones, Artiodactyla in vitro, Mammalia interactions with uterus, Rodentia RNA, Rodentia GIBBONS ZEILMAKER ORSINI ROBERTSON GLENISTER McLAREN SEGAL ultrastructure, Mammalia GLENISTER in vivo & in vitro, Rodentia WHITTEN interaction between trophoblast & inner cell mass, Rodentia GARDNER — with uterus, Mammalia MARCUS ion transport, relation to fluid accumulation, Rodentia CROSS karyotype, delayed fertilization, Rodentia OAKLEY manipulation & development, Mammalia MOOR metabolism, regulation by hormones & uterine secretions, Rodentia MARCUS mucin coat, function, Lagomorpha KILLE non-cellular coverings, Lagomorpha BOVING nutrition, uterine environment, Lagomorpha, Rodentia BENTYN CHOROSZEWSKA pre-implantation, embryo-maternal relation- ships, eggs transfer, Lagomorpha ADAMS — , in vitro, effect of oviduct fluid, Mammalia KILLE — , , & in vivo, Rodentia WROBLEWSKA relation with endometrium, Rodentia DE FEO respiration, Lagomorpha TORRES role of nucleolus in differentiation, Homo, Rodentia MARTINEK 246 spacing, orientation & implantation, Lagomorpha BOVING storage, effect of CO2, Aves KONISHI KOSIN — methods, Lagomorpha, Rodentia ELLIOTT transfer to drug-treated & normal recipients, Rodentia CHAMBERLAIN trophoblast, antigenicity, Lagomorpha, Primates, Rodentia BEHRMAN — behaviour in vitro, Mammalia GLENISTER — , biology, Rodentia BILLINGTON — , ectopic, Rodentia ZEILMAKER — , effect on uteroplacental blood vessels, Homo, Rodentia HARRIS — , giant cell transformation, Rodentia DICKSON — , in vivo & in vitro, Rodentia McLAREN — invasion, realtion to uterine blood vessels, Lagomorpha BOVING — , ion transport, electrophysiology, Rodentia CROSS — knobs, Lagomorpha BOVING unimplanted, hormone secretion, Rodentia DICKSON zona pellucida, factors controlling loss, Carnivora, Rodentia ORSINI BLASTODERM see also Cleavage: Primitive streak axial primordium, experimental study, Teleostei HOPERSKAYA blood islands, hemoglobin synthesis, Aves FRASER WAINWRIGHT cell contacts, Aves DOWNIE — migration between germ layers, role in differentiation, Aves AZAR differentiation potencies, Aves EYAL KOCHAV dissociated blastodisc, hemopoiesis in reaggregates, Aves WAINWRIGHT early development, Aves LUTZ effect of embryonic heart RNA, Aves NOTO embryonic liquid, effect of injuries, biophysics, biochemistry, Aves, Rodentia ELIAS epi- & hypoblast, ultrastructure, Aves KARLIN epiboly & cell differentiation, electron microscopy, Teleostei THOMAS expansion, cell behaviour, Aves DOWNIE explanted, effect of pesticides, Aves WAINWRIGHT formation, Cephalopoda ARNOLD in vitro culture, Aves LUTZ , histochemistry, Aves VAKAET inductive effects, hypoblast & epiblast, Aves WOLK labeled metabolites, incorporation & transport in vitro, Aves BAKER marginal tissue, morphogenetic movements, microcinematography, Aves SCHLESINGER morphogenetic movements, cell surface properties, Aves RAO reaggregated cells, grafting, Teleostei OPPENHEIMER , antigenic differentiation, Aves D'AMELIO erythrocytic system, differentiation, Aves, Rodentia ALBRIGHT erythroid cells, characteristics, Aves FRASER experimental studies, Aves LEMEZ hemocytes, electron microscopy, Araneida SEITZ hemoglobin, Aves D'AMELIO — , changes, embryo & larva, Teleostei RAUNICH — composition, effect of environment, Anostraca BOWEN — , control, during development & syn- thesis, Vertebrata MacLEAN — , embryo, Artiodactyla BLUNT — , formation in embryo & young larva, Teleostei YAMAGAMI — , liver, effect of hormones, BUDR & x-rays, Rodentia MALPOIX — production controled by isoleucyl- tRNA, Rodentia RENNERT — switch, Anura DAN at metamorphosis, genetic control, Anura KAJITA SHUKUYA TORII — synthesis, Aves WILT , Aves, Rodentia ATHERTON — — , blastodisc, role of proteins, lipids & RNA, Aves WAINWRIGHT — — , blood island, kinetics, Aves FRASER WAINWRIGHT — , — in embryo, Aves FRASER — — in reaggregated blastodisc, Aves WAINWRIGHT , relation to RNA, Utodela GRASSO — , various forms, Aves GODET hormone concentration, reproductive cycle, Primates ECKSTEIN inorganic salts in plasma, compared to amount in lung & liver, Anura, Rodentia WYSOCKA morphogenesis & physiology, Aves VENZKE pressure throughout pregnancy, Primates RAMSEY reticulocyte, embryo, Aves DI STEFANO MUSMECI serum, bio- en histochemistry, Aves CARINCI — K, Rodentia GRABOWSKI — proteins, Aves, Rodentia HEIM volume, Cetacea, Mammalia SPENCER BLOOD VESSELS see Vascular system see also Circulation BODY CAVITIES (& their linings) coelom, morphology en electron micros- copy, Cephalopoda FIORONI coelomocytes, material transfer to oocytes, in vitro, Polychaeta SCHROEDER eleocytes, nucleolus formation, Polychaeta SCHROEDER inguinal canal, Homo PASSAPONTI BLASTODISC see Blastoderm BLASTOMERES see Cleavage BLASTULA see Cleavage BLOOD see also Circulation; Hematopoiesis Vascular system acid-base regulation, Aves DAWES cells, differentiation in vitro, Aves CURY GODET — , in yolk sac, Rodentia JONES cellular chimerism, parabiosis, Anura VOLPE chemistry after intra-uterine hypoxia, Homo THIERY — , young embryo, Aves, Rodentia GRABOWSKI congenital anemia, W-series mutants, Rodentia SELLER erythrocytes, Aves NIGON — & serum, enzymes, Aves, Rodentia ATHERTON — , binucleated, hormonal influence, Aves BUSS — , — , effect of age & sex, Aves BLOOM — membrane, immunology, Rodentia FURUSAWA BONE(S) see also Bone marrow; Cartilage; Skeleton AMP, cyclic, effect of PTH, Aves HEERSCHE autoradiography, Vertebrata LEBLOND Aves FREUND SCHUMACHER calcitonin, ultimobranchial body, Chelonia DIMOND cell differentiation, Mammalia MAZHUGA — , induction, origin & development, Rodentia NOGAMI development & growth, Teleostei YAMADA diaphyseal collar, part, calcification, Rodentia SCHERFT effect of gravity, Rodentia FELTS — ■ — ' hormones in vivo & in vitro, Aves DAIMON , Rodentia GAILLARD imidazol, in vitro, Rodentia GAILLARD enchondral osteogenesis, contribution of cells & matrix, Lagomorpha, Rodentia MAZHUGA enzymes, tracer studies, Rodentia GAILLARD formation, hormonal regulation, Aves THESINGH — , relation to dentinogenesis, Selachii, Teleostei, Urodela HEROLD growth & development, postnatal, Homo ANDERSON 247 BONE(S) (contd.) induction, inhibition by thalidomide, Rodentia RINALDI SCHREIBER limb, proportionate development, effect of thyroid, in vitro, Aves LAWSON mechanics, Homo, Mammalia FELTS metabolism, enzymes, hormone effects, Anura, Aves McWHINNIE metamorphic effect of hormones, Artio- dactyla, Rodentia KNESE organ culture, Rodentia GAILLARD origin, Aves HALL ossification, Rodentia RAJTOVA Osteichthyes FRANCOIS osteogenesis, endo- & perichondral, Homo, Mammalia MAZHUGA regeneration, histochemistry, Rodentia MAKINEN RAEKALLIO Rodentia SCHUMACHER Vertebrata FRIANT BONE MARROW development, transplantation, irradiation, Homo, Primates, Rodentia THOMAS effect of x-irradiation, ultrastructure, Carnivora TAHMISIAN BRAIN acid hydrolase, postnatal, Rodentia ALLEN TRAURIG acoustic tracts & stem, Mammalia CHOUARD amino acid metabolism, Rodentia KURIYAMA antigenic components, Rodentia VAN ALTEN antigens, Aves WENGER area postrema & subfornical organ, ultra- structure, Carnivora, Primates WARTENBERG , Carnivora XAVIER basal telencephalic areas, autoradio- gaphy, Rodentia KEYSER biochemistry, mutant, Rodentia JOHNSON blood-brain-barrier, Lagomorpha, Rodentia NAKAMURA cell generation cycle, autoradiography, Rodentia HOSHINO centres, Anura KOLLROS cerebellar cortex, Rodentia BERRY — — , histochemistry, Rodentia CSILLIK KASA cerebellum & cortex, electron microscopy, autoradiography, tissue culture, Aves, Rodentia MELLER — & inferior olive, Vertebrata TAKEDA — , descriptive & experimental morpho- logy, histochemistry, Carnivora PHILLIS — , hypoplasia induced by virus infections, Carnivora, Rodentia MARGOLIS — , Rodentia DAS — , ultrastructure, Primates KORNGUTH Cetacea GIHR KRAUS cochlear nucleus, Homo EYRIES , dendrites & synapses, Rodentia FELDMAN correlation with behaviour, Aves HARTH cortex, Mammalia DELMAS — , Rodentia BERRY — & hippocampus, morphogenesis & genetic control, Rodentia DeLONG — , autoradiography, Mammalia BLOSS — , early neurogenesis, Rodentia HINDS — , enzymes, electron microscopy, Rodentia KAUFMANN — , organization, Golgi study, Carnivora MARIN — , perinatal maturation, Mammalia MARTY cortical somesthetic response, effect of GABA, Lagomorpha, Rodentia ROKYTA development, Carnivora, Rodentia ALTMAN diencephalon, autoradiography, Rodentia KEYSER differentiation, immunofluorescence, Aves NORD early stages, growth & differentiation, Aves BURDA EEG & embryonic behaviour, Aves CORNER — , fetal, influence of uterine contractions, Homo GARCIA — , hypothermic hypoxia, embryo, Aves PETERS effect of glutamate, Rodentia INOUE MURAKAMI — — x-rays, undernutrition & hormones, Rodentia ALTMAN encephalization, physiology, Teleostei ARMSTRONG enzyme histochemistry, esp. nucleus ruber, Rodentia SCHIEBLER fetal, extra- & intracellular environment, Aves, Mammalia SEDLACEK STASTNY — , impedance, Aves, Mammalia SEDLACEK — , membrane ATP-ase system, Aves SEDLACEK STASTNY — , steady & membrane potentials, Aves, Mammalia SEDLACEK fore- & mid-, comparative study, Amphibia, Reptilia SENN hemispheres, energy utilization, Aves JONGKIND histochemical mapping, Mammalia KOZIK Homo HEWITT hydrocephalus induced by vims infections, Rodentia MARGOLIS hypothalamus, autoradiography, Rodentia IFFT — , connections with hypophysis, Anura ENEMAR — , , Lagomorpha, Rodentia TERNEBY — , , Rodentia DAIKOKU — , neurons, Aves IVANOFF — , ultrastructure, Aves GRIGNON GUEDENET in vitro, Aves WENGER Mammalia FRIANT HEWITT medial geniculate bodies, interhemispherical connections, Carnivora, Lagomorpha, Rodentia ROKYTA mesencephalic nuclei, Aves JACOBSSON metabolism, effect of addictive drugs, Rodentia KURIYAMA mitotic activity, hatching, Aves OPPENHEIM morphological & experimental study, Amphibia CLAIRAMBAULT nerve & glial cells, culture, growth & diffe- rentiation, Blattariae LEVI neuro-ophthalmic structures, electron micros- copy, Tetrapoda WEIDMAN neuroglia nuclei, relation to myelinated fibres, postnatal, Rodentia STURROCK neurons, electron microscopy, autoradiography, tissue culture, cinematography BREIPOHL normal & abnormal development, Rodentia AUROUX — — — — , autoradiography, immunology, Aves, Rodentia LANGMAN olfactory bulb etc., Aves WENGER , nerves & glia, electron microscopy, Rodentia HINDS olive, dendrites & synapses, Rodentia FELDMAN optic centre differentiation, biochemical factors, part, role of retinal fibres, Aves MARCHISIO — lobe, effect of optic vesicle removal, Aves DUBEY SALTHE , eyeless animals, proteins, Aves MARCHISIO optic tectum & nuclei, effect of removal of optic cup, Aves WENGER — — , connection to retina, Aves DeLONG , growth, Anura HOLLYFIELD — — , part, connections to retina, Anura FELDMAN — — , retino-tectal connections, Aves COULOMBRE physiological regeneration, Mammalia POLEZHAEV pia mater, transplanted, influence on proli- feration & differentiation, Mammalia DAS postlarval, Polychaeta KORN potentials, sensory evoked, Homo VANZULLI prosencephalon, effect of dinitrophenol administered to blastula, Teleostei CHANCONIE CLAIRAMBAULT — nuclei, Teleostei CHANCONIE pyramid, interstitial cells, ultrastructure, Mammalia DAS Rodentia PILLERI sexual maturation, effect of sex hormones, Rodentia ADAMS MARKWALD subcommissural organ, Anura WAKAHARA — ■ — , development & function, compara- tive study, Vertebrata OKSCHE , effect on axial structures, Anura HAUSER , growth & differentiation, Teleostei MARINI , structure & function, Homo, Mammalia LEONIENI subcortical auditory centres, interhemis- pherical connections, Carnivora, Lagomorpha, Rodentia ROKYTA 248 tectum opticum, effects of optic nerve section, Urodela GAZE — — , grafting, Teleostei GAZE — — , rudiment transplantation between varieties with & without eyes, Teleostei BRICK telencephalon, commissures, Rodentia GLAS — , histogenesis, Anura CAPANNA Teleostei ROLLINS thalamus, autoradiography, Mammalia MARTY transplantation, interspecific, Axes OPPENHEIM vascular system, descriptive & experimental study, Aves BURDA vascularization, ultrastructure & histo- chemistry, Mammalia LIERSE visual connections, Anura GAZE 1 Aves GOLDBERG — cortex, synapses, Carnivora CRAGG — , sulfated, role in palate development, Rodentia COLEMAN — , synthesis & morphogenetic role, sub- mandibular epithelium, Rodentia BERNFIELD , effect of chemicals, Rodentia LARSSON polysaccharides, localization, part, vascular system, Homo LHOTKA sugar, metabolism of embryo, tracer studies, Echinodermata YANAGISAWA CARCINOGENETIC AGENTS see also Tumour (s) chemical, action mechanism, Rodentia FUJII effect on feather germ & hair follicle regene- ration, Aves, Rodentia KOECKE mammary glands, Rodentia HOSHINO BRANCHIAL REGION see also Pharynx development & teratology, Amniota, Homo SLIPKA epibranchial organ, Teleostei BERTMAR BRISTLE see Integument BURSA OF FABRICIUS see Lymphatic system CAPILLARIES see Vascular system CAPSULE see Egg CARAPACE see Skin CARBOHYDRATE(S) chondroitin sulfate, synthesis, cell differ- entiation in vitro, Aves COLEMAN — — , — , correlation with collagen, chon- drocytes, Aves SOLURSCH glycogen configurations, egg & embryo, Anura HAY — , effect of parathion, Aves MEINIEL — metabolism, liver, Aves BENZO — , nervous system, Amphibia MARINI — synthesis, oogenesis, radio-isotope study, Insecta ENGELS glycogenolysis, in perfused placenta, effect of gonadotropins, Homo CEDARD glycoproteins, metabolism, Anura HOGLUND — , relation to cell surface structure LILIEN — , role in cell adhesiveness, Aves KEMP glycosaminoglycan changes in fetal epidermis, Homo GIANNETTI — , differentiation & effect of drugs, Homo, Rodentia SCHIMMELPFENNIG — , palate, composition & effect of teratogens, Rodentia JACOBS — , synthesis, cell differentiation in vitro, Aves COLEMAN glucose & glycogen in pre- & postnatal liver, electron microscopy, Rodentia JACQUOT PLAS — , uptake by early embryo, tracer study, Aves HARRISON hyaluronic acid, synthesis & degradation, cornea, Aves TRELSTAD metabolism, Anura SALLACH — , as affected by mutants, Diptera DOANE — , embryo, Echinoidea MATSUNAGA — , embryonic diapause, Anostraca CLEGG — , endocrine regulation, muscle, Aves LOVE — , — — , part, metamorphosis, Amphibia FRYE — , enzymes, fetus & neonate, Mammalia WALKER — , relation to glycogen metabolism, pre- implantation stages, Homo, Rodentia STERN mucin, Gastropoda D'ANCONA mucopolysaccharides, Echinoidea IMMERS — , acid, early stages, Lagomorpha, Rodentia DENKER — , blastoderm, Aves VAKAET — , egg & larva, Teleostei LOBO — , metabolism, Anura HOGLUND CARTILAGE achondroplasia, histology & biochemistry, Homo, Lagomorpha SHEPARD achondroplastic, enzymes BARGMAN cell differentiation, Mammalia MAZHUGA cells, induction, origin & development, Rodentia NOGAMI chondrification, relation with teratogenesis, Homo STRAUSS chondrocytes, cell cycle time, Aves ELMER — , differentiation & biochemistry in vitro, Aves KVIST — , — stability in clonal cell culture, Aves, Rodentia EGUCHI OKADA TAKEICHI — , hypertrophy, Mammalia SCHRYVER — in vitro, effect of growth hormone, Aves SOLURSH comparison of different types, in vitro, Aves LEVENSON control of chondrogenic expression, Aves MINOR development & growth, Teleostei YAMADA differentiation in vitro, biochemistry, Aves COLEMAN effect of vitamin C, in vitro, Aves LEVENSON formation, external ear, Rodentia SVAJGER — , somites & vertebrae, ultrastructure, Aves MINOR genetic control, macromolecules, Aves ELMER induction by notochord & neural tube, Aves STRUDEL matrix components in nonchondrogenic tissues, Aves MINOR metamorphic effect of hormones, Artiodactyla, Rodentia KNESE origin, Aves HALL vertebral, biochemistry & ultrastructure, Aves STRUDEL Vertebrata FRIANT CASTE DETERMINATION see Polymorphism CELL(S) see also Tissue culture; Unicellular organisms adhesion & recognition, embryo, Aves STOCUM — , Aves HORNBY — , effect of dielectric constant, Aves JONES — , formation during reaggregation EDWARDS — , limb bud, Aves MASLOW — , measurement, embryo, Aves STEINBERG — , mechanism & changes during develop- ment, Echinoidea KONDO — , morphogenesis, Aves, Rodentia ROTH — , physics & chemistry, Anura, Aves, Porifera STEINBERG — , release of material, Homo, Rodentia MASLOW — , specific, leg disc, Diptera SPREY — , to substrate, Homo, Rodentia MASLOW adhesiveness, role of actomyosin & glyco- protein, Aves KEMP affinity changes during morphogenesis, Amphibia GRUNZ — , imaginal discs, normal & mutant cells, Diptera GARCIA — , melanophores, time-lapse cinemato- graphy, Urodela BRICK ageing, in vitro, placenta, Rodentia DORGAN aggregation, Amphibia PATRICOLO — & junctions, neural tube closure, Amphibia BLUEMINK 249 CELL(S) (contd.) — , cellular specificities controlling morpho- genetic movements, Aves, Rodentia BURDICK — , factors, Aves FUJISAWA OKADA TAKAHASHI , Echinoidea KONDO , Porifera, Rodentia HUMPHREYS — , RNA & protein synthesis, Amphibia GRUNZ — , tissue reconstruction, Anura, Aves, Porifera STEINBERG behaviour, action of morphogenetic agents, Aves WESTON — , blastoderm expansion, Aves DOWNIE — , effect of donor age, Aves LEFFORD — , social, Aves, Mammalia WEISS chimerism, blood, parabiosis, Anura VOLPE communication, Anura, Aves FABIAN — , early stages TUPPER — , mitochondria altered by laser, Rodentia BERNS — , mutant, Diptera SCHNEIDERMAN contact, developmental changes, electron microscopy, Echinoidea LUNDGREN — , early blastoderm, Aves DOWNIE — , experimental study, Anura, Aves, Teleostei TRINKAUS — , factors, Aves FUJISAWA OKADA TAKAHASHI — inhibition, nucleic acid synthesis, Aves HUMPHREYS — , morphogenesis, Echinoidea GUSTAFSON — , role in gastrulation, Anura JOHNSON — to substrate, Aves TAKEICHI cortical contractile protein, mitosis, Echinoidea SAKAI cycle, effect of ions on DNA synthesis, Diptera, Orthoptera GETTMANN — , macromolecular synthesis, Echinoidea MANO death, correlation with mitosis, Rodentia ORLOVA — , fat body, effect of internal environment & lysosomes, Diptera BUTTERWORTH — , heart, Aves PEXIEDER — , imaginal disc, Diptera SPREY — in embryology, normal & abnormal, Homo ILIES — , integument, epithelial-mesenchymal inter- actions, larva through metamorphosis, ultrastructure, in vivo & in vitro, Anura GOLDSMITH — , interdigital space, electron microscopy, Aves PAUTOU — , limb morphogenesis, Aves, Homo, Rodentia FALLON — , role in morphogenesis, Aves SAUNDERS — , teratogenesis MENKES — , — of lysosomes & hormonal control, metamorphosis, Anura, Hemiptera GOLDSMITH — , teratogenesis, Rodentia SCHWEICHEL — , ultrastructure, Aves, Homo MOTTET degeneration in vitro, Aves, Homo, Rodentia HAY — , normal & mutant embryos, Aves EDE development & proliferation, effect of cytosine arabinoside, Rodentia BERTALANFFY developmental phenomena, variations in structure & function, various techniques KESSEL differentiation, Echinoidea OHASI — , DNA, Vertebrata BOLLUM DONNELLY KARASAKI MODAK TRAURIG — , effect of inorganic ions, Hydrozoa MACKLIN — , gene expression, part, isozymes, Teleostei WHITT — in vitro, Vertebrata CURTIS — , protein synthesis control, epigenetic & genetic, Vertebrata WHITT — , reaction to foreign bodies, Mollusca CHENG — , regeneration, Hydrozoa AOTO — , virus infection, Aves WATANABE dis- & reaggregation, early embryo, Urodela ENGLANDER , experimental study, Anura, Aves, Teleostei TRINKAUS , neural tube, Aves ADLER division, micrurgical studies, Anura, Crustacea, Echinoidea RAPPAPORT embryonic, adhesion mechanisms, Porifera, Vertebrata CURTIS — , adhesiveness, Aves PHILLIPS — , aggregation, Echinoidea GIUDICE — , — pattern, Urodela IKUSHIMA — , — , tissue formation, Aves, Rodentia KURODA — & somatic, introduced into blastocyst, Artiodactvla, Lagomorpha MOOR — , cycle, Urodela LOHMANN — differentiation in vitro, Diptera SEECOF — , dissociated, RNA metabolism, effect of inductive agents, Amphibia IYEIRI — , membrane, chemical treatment, Echinoidea HEROLD — , reaggregates, segregation mechanisms, Vertebrata CURTIS — , surface properties & behaviour, Aves MOORES — , — , structure & physical chemistry, Vertebrata CURTIS epithelial, in vitro, locomotion & behaviour, Aves, Rodentia MIDDLETON equilibria, undifferentiated & differentiated tissue, Turbellaria CHANDEBOIS fetal & adult, longevity in vitro, Mammalia RAFFERTY fibroblast-like, motility, role in morpho- genesis, Anura, Aves IZZARD haploid embryonic, genetics, nuclear transfer, Anura MEZGER homing, Aves CAMERON hybridization, genetics & epigenetics RUDDLE interactions, Porifera KEMP — , Urodela TOIVONEN — , biophysics WEISS — , developmental instructions, theoretical study LINDENMAYER — , immune response, Rodentia ARGYRIS — in embryo, Echinoidea MUTOLO — — vitro, energy transfer, Aves REPORTER — , oogenesis, biochemistry, Hemiptera DAVENPORT — , physical, blastomeres, Echinoidea VACQUIER — , spiral cleavage CATHER — , tissue primordia, Aves LAVARACK intercellular synthesis, role of intercellular interactions, Aves, Rodentia SALAMATINA TUMANISHVILI interstitial, cytology, Hydrozoa KIDO — , movement & differentiation, Hydrozoa LENHOFF junctions, electrophysiology, Anura, Urodela SLACK — , embryo, Aves BACKHOUSE — , heart, Aves FISCHMAN kinetics, Hydrozoa CAMPBELL larval & imaginal, abdomen, Diptera BAUTZ membrane differentiation, macromolecules, Rodentia COMOGLIO , neuron, Rodentia FILOGAMO — , isolation, Anura, Aves EISENBERG — , proteins CRICK migration, correlation with electric fields, Anura KOSTELLOW MORRILL — , embryo, Aves BACKHOUSE BELLAIRS — , lymphatic system, Rodentia HINRISCHSEN — , neural crest, Aves LE DOUARIN — , , tracer study, Urodela SALA mobility, regeneration, effect of ultrasound, Lagomorpha, Rodentia DYSON morphogenetic movements, cell surface, Anura, Aves EISENBERG motility & ultrastructure, in vitro, Amphibia FREED movement & differentiation, in vitro, Diptera ROSALES — — division, in vivo & in vitro ALLEN — , contact inhibition STEINBERG — , experimental study, Anura, Aves, Teleostei TRINKAUS — , morphogenesis, Gastropoda SATHANANTHAN — , regeneration, Hydrozoa TWEEDELL — , relation to colony growth & morpho- genesis, Hydrozoa BRAVERMAN number of generations, relation with deter- mination, Amphibia SLADECEK paraganglionic, Homo KRAUS periphery, changed by enzymatic treatment, effect on reaggregation, Aves MASLOW proliferation & differentiation, Aves CAMERON reaggregated, from blastoderm, grafting, Teleostei OPPENHEIMER 250 reaggregation, Porifera FUKE KIDO KISHIDA OHSAKI — after enzymatic change of cell periphery, Aves MASLOW — , embryo, Echinoidea TERAYAMA — , factors, Porifera MULHERKAR — , formation of adhesion EDWARDS — , neuroblast STEFANELLI recognition, germ layer, Amphibia OKAMOTO — , molecular mechanism, Aves, Rodentia ROTH — , specificity in imaginal discs, Diptera GARCIA relations in vitro, Aves, Rodentia ABERCROMBIE HEAYSMAN PEGRUM replacement, pancreas, metamorphosis, Anura SOLURSH surface, antigens, Rodentia FEDOROFF — , — , tumor & embryonic cell, Rodentia EDIDIN — , biochemistry, biophysics LAKSHMI SHERBET — changes, Chlorophyceae, Diatomeae IWASA — , chemo-architecture, intestinal epithelium, Aves, Mammalia MOOG — coat, Ascidiacea DECK , ultrastructure & cytochemistry, Amphibia DE SILVA — determinants, role in tissue organization & interaction, Rodentia PRITCHARD — , electrophysiology, Anura, Urodela SLACK — , experimental study, Anura, Aves, Teleostei TRINKAUS — , genetic control in pigment pattern, Urodela BRICK — , morphogenetic movements, Anura, — in different regions, gastrulation, cell electro- phoresis, Anura BRICK Aves EISENBERG — , physics & chemistry, relation to adhesion, Anura, Aves, Porifera STEINBERG — properties, role in gastrulation, Anura JOHNSON , — — morphogenetic movements, Aves RAO , , Aves, Rodentia COLLINS — , relation of structure to glycoproteins LILIEN — , specificity, Aves WESTON — , ultrastructure, Aves LESSEPS transformation, Anura, Aves LOVTRUP CELL CULTURE see Cell(s); Tissue culture CELL DEATH see Cell(s) CELL DIVISION see Cell(s); Mitosis CELL FUSION see Cell heredity CELL HEREDITY cell fusion, phenotypic expression, Rodentia HARRIS clonal analysis, segment growth, Heteroptera LAWRENCE — cell culture, chondrocytes & lens epithelium, Aves, Rodentia EGUCHI OKADA TAKEICHI imaginal disc, Diptera MORATA , zygotic lethals, Diptera RIPOLL wing mutants, Diptera SANTAMARIA CELL-LINEAGE see Embryology (experimental) CELL RENEWAL see Regeneration (physiological) CENTRAL NERVOUS SYSTEM see also Brain; Neural crest; Neural plate; Spinal cord abnormal development, quantitative studies, Vertebrata JELINEK Aves, Rodentia MARTIN cellular kinetics, effect of periphery, auto- radiography, Aves OJEDA Cetacea PILLERI SINCLAIR chemical energy production & utilization, Aves CORNER comparative study, Amphibia, Pisces, Reptilia SENN dendritic patterns, Rodentia SCHADE descriptive & experimental studies, Aves DRUKKER determination, Urodela JACOBSON developmental mechanism, Urodela OHASHI — variations, Primates McCLURE differentiation, electron microscopy, in vitro, Aves LYSER disturbances, influence on learning, Rodentia AUROUX DNA, quantitative study, Rodentia FRASCHINI MANFREDI effects of hormones, Rodentia EAYRS maternal hypoadrenocorticalism, Rodentia HOAR nutrition, Rodentia AUROUX X-irradiation, Rodentia BERRY electrophysiology, Rodentia SCHADE experimental study, Aves BERGQUIST — teratology, Lagomorpha, Rodentia NAKAMURA functional development, electrophysiology, Aves CORNER glia, Rodentia SMART — cells, culture, growth & differentiation, Blattariae LEVI , electron microscopy, autoradiography, Rodentia VAUGHN , histochemistry, Mammalia KOZIK MULAREK , movement at pupation, endocrinology & biochemistry, Lepidoptera PIPA histogenesis & differentiation, Rodentia CHEVREAU Mammalia DELMAS maturation of spontaneous & reflex activity, Aves CORNER microglia, electron microscopy, Rodentia BRICHOVA — , experimental morphology, Aves, Rodentia KRANTZ mitotic ratio, Amphibia BAFFONI monoamine oxidase, Rodentia STEWART myelin sheaths, electron microscopy, Rodentia PETERS myelinization, Lagomorpha CHEVREAU myelinogenesis, control, Aves MEZEI neural epithelium, nuclear migration, auto- radiography, Aves CORLISS — tube, Aves SANDOR , closure, cell aggregation & junctions, electron microscopy, Amphibia BLUEMINK , collagen secretion, Aves HAY , dis- & reaggregation, Aves ADLER , electron microscopy, Aves BERGQUIST , , effect of urethane, Rodentia HERMAN KAUFFMAN — — epithelium, developmental potencies, Vertebrata OKSCHE , in vitro, Aves WENGER , lumbosacral level, myeloschisis, Aves WATTERSON , morphogenesis, Anura BRAUCKMANN , proteins, Aves MARCHISIO — — , secondary origin from tail bud, Aves JELINEK neuroglial cells, electron microscopy, Rodentia PETERS organ culture, Aves JAMES Pinnipedia SINCLAIR protein turnover, Rodentia STEWART quantitative histology, cytology & ultra- structure, Vertebrata JELINEK regeneration, Urodela SCISLAWSKI relation to doubled sense organs in animals with tandem heads, Urodela BRANDLE rhombencephalic & anterior spinal cord region, induction & pattern formation, Aves WIERTZ role of neural function, electrophysiology & histology, Anura, Aves CORNER specific proteins, Aves McCALLION teratogenesis, Aves ALEXANDRU — , experimental, electron microscopy, Rodentia HAYASHI vascularization, Rodentia HAYASHI KAMEYAMA 251 CENTRIFUGATION see Biochemistry; Embryology (experimental); Embryology (physiological) CEPHALOGENESIS see Head CEREBELLUM see Brain CHEMICAL MICRO-ANALYSIS dry mass/water ratio from fertilization through first cleavage, Echinoidea BEREITER CHEMICALS (biologically active) see specific chemicals (Antibiotics; Antimitotic agents etc. etc.); specific elements; Drugs; Ions; Teratogenesis CHEMORECEPTORS CHIMERAS experimental production, Rodentia SELLER TARKOWSKI interaction of different genotypes, Rodentia GARDNER limb, xenoplastic, ecto-mesoderm inter- actions, Aves PAUTOU regulation, Rodentia BUEHR sex differentiation & coat color, Rodentia McLAREN xenoplastic, cutaneous appendages, Aves Mammalia DHOUAILLY CHONDROCRANIUM Amphibia FRANK Anura PLASOTA morphogenesis, experimental studies, Amphibia Aves, Chelonia, Lagomorpha TOERIEN ontogenesis, Aves KOCK ossification & morphogenesis, Rodentia RAJTOVA Reptilia FRANK Teleostei PINGANAUD CHONDROGENESIS see Cartilage CHORDA see Notochord CHORION see Placenta see also Embryonic membranes CHOROID PLEXUS see Brain CHROMAFFIN CELLS monoamines, Rodentia ARVIDSSON CHROMATIN see Chromosomes CHROMATOGRAPHY see Biochemistry etc. CHROMATOPHORE(S) cytodifferentiation, experimental & electron miscroscopic studies, Amphibia, OBIKA developmental physiology, Amphibia BAGNARA differentiation & migration, developmental & genetic control, Vrodela DUNCAN enzyme changes, Anura, Teleostei MATSUMOTO genetic control, Vrodela DALTON immunological interactions, intra- & inter- specific, Vrodela DUNCAN larval & adult, response to purified chro- matophorotropins, Crustacea RANGA morphology & electron microscopy, Cephalopoda FIORONI pattern formation, Vrodela DUNCAN phaeomelanosomes, Rodentia MATSUMOTO ultrastructure, Amphibia BAGNARA CHROMOSOME(S) see also Cytology aberrations, relation to sex ratio, Homo YASUDA — , Rodentia WROBLEWSKA — , virus-induced, terato- & carcinogenesis, Homo MAKINO — , X-irradiation, Rodentia LEONARD abnormalities, Homo CARR — resulting from x-irradiation of parent animal, Vrodela JAYLET B, DNA, Orthoptera GIBSON behaviour in gametogenesis, Anura MARKERT biochemistry, Homo HAKANSSON — , Lagomorpha SANDAHL breaks, single strand, lens fibre cell, Aves BOLLUM MODAK chromatin, germ line limited, Nematoda MORITZ — , isolated, priming RNA synthesis, Echinoidea OZAKI — , liver, effect of hormones, BUDR & x-rays, Rodentia MALPOIX — , spermatogenesis, Teleostei MOAV — , template activity, meiosis, Anura FICQ configuration, influence on effect of x-irra- diation, gametes through pupae, WURGLER BHARGAVA PURI Diptera congenital malformations, Homo cycle, amphigony & pseudogamy, Turbellaria developmental changes, Anura diminution, molecular analysis, Nematoda early stages, part, ultrastructure, Rodentia BENAZZI DiBERARDINO SMITH ENDO SHIMADA effect of conditions causing egg overripeness, Mammalia MIKAMO teratogens, Rodentia HORVATH elimination, microcinematography, Diptera CAMENZIND ULRICH fetus, normal & pathological, Homo MIKAMO fine structure & function, normal & inter- specific hybrids, Diptera KAUFMANN germinal & somatic cells, Nematoda SCHREIBER histone synthesis, embryo, Echinoidea LINDSAY karyotype, abnormal, relation to placenta morphology, Homo PAWLOWITZKI — , blastocyst, Rodentia TAKAGI — , congenital disorders, Homo MAKINO — , — malformations, Homo BARGMAN — , & abortions, Homo VARMA — , delayed fertilization, Rodentia OAKLEY — in spontaneous abortions & malfor- mations, Homo SASAKI & induced abortions, Homo MAKINO — , lethal racial hybrids, Anura MOORE — , sex ratio, Homo SASAKI Lacertilia KRAL lampbrush, Amphibia NARDI — , Anura GALLENI — , Cephalopoda, Vrodela MANCINO — , detection of mutants, Vrodela LACROIX — , DNA morphology, Vrodela ROLLINS — , fine structure, RNA, DNA & protein metabolism, Amphibia MILLER — , germinal vesicle, Orthoptera KUNZ — , RNA & protein, Vrodela LACROIX — , RNA /DNA hybridization, Vrodela BARSACCHI — , structure & function, Anura GIORGI loci structure, effect of gene activation, Diptera HOLT — , template activity, sensitivity to inorganic ions, Diptera MULLER Mammalia KRAL molecular structure during genetic activity, Diptera GAY oocytes, realtion to radiosensitivity, Mammalia FRANCHI polytene, DNA, RNA & protein synthesis, normal & infected larvae, Diptera PA VAN — , histones, Diptera ROBERT — , puffing, induction & repression, Diptera BERENDES — , — patterns, control mechanism, Diptera KROEGER — , , effect of temperature, Diptera DORR — , — , ions, juvenile hormone, Diptera BILO 252 puffing, correlation with enzyme induction, Diptera HODGETTS — patterns, Diptera COUNCE , effect of drugs, Diptera SANNASI , ions, Diptera GOPALAN puffs, cytochemistry & fine structure, Diptera RASCH — , effect of hormones, Diptera LAUFER — , experimental induction, Diptera LEENDERS replication, nuclear transplant embryos, Amphibia KING — patterns, Diptera BARR role in development, Rodentia YANAGIMACHI differentiation, Diptera POULSON sex, anomalies in newborns, Homo MIKAMO sex-reversal, Anura MIKAMO supernumerary, effect on development, Otthoptera BERGERARD LESPINASSE — , in abortions, maternal or paternal origin, Homo PAWLOWITZKI thymidine incorporation, cleavage, Teleostei ROLLINS X-Y exchanges, Diptera BREUGEL Y, gene function, spermatogenesis, Diptera SANDERS — , — physiology, Diptera GLATZER HESS SCHAFER — , molecular biology, Diptera SCHWOCHAU CILIA regeneration in embryo, Echinoidea TERAYAMA ultrastructure, gradual beat reversal Cephalopoda BOLETZKY CINEMICROGRAPHY see Microcinematography CIRCULATION see also Vascular system neonatal, Artiodactyla NIE CLEAVAGE (& morula, blastula) see also Blastocyst; Blastoderm; Blastodisc Anura KATAGIRI RZEHAK biochemistry, Anura MELTON blastocoel formation, Rodentia CALARCO blastomeres, electrical communication, Echinoidea SAUNDERS — , experimental fusion, Rodentia ZEILMAKER — , isolated, Gastropoda VERDONK — , physical interactions, Echinoidea VACQUIER — , single, developmental capacity with & without additional nuclei, Artiodactyla, Lagomorpha MOOR blastula formation, ionic events, electric fields, cell migration, Anura KOSTELLOW MORRILL — , Na release in blastocoel & germ layers, Anura KOSTELLOW MORRILL — , tryptophan metabolism, tissue specific enzymes, Anura KOSTELLOW — , vasopressui-like hormone, Anura KOSTELLOW MORRILL cavity, role in embryogenesis, UV micro-beam study, Gastropoda JURA Cephalopoda ARNOLD Cestodes OGREN chronology, relation to differentiation, Gastropoda BIGGELAAR cleaving force, origin & direction, Urodela KUBOTA cytochemical heterogeneity, Amphibia UBBELS cytodifferentiation, Amphibia NAKAMURA TAKASAKI cytokinesis, Urodela SIGNORET — , micrurgical studies, Anura, Crustacea, Echinoidea RAPPAPORT cytology & cytochemistry, Echinoidea, Rodentia SKALKO determination of nuclei, effect of cytoplasmic differentiation, Diptera HODGETTS dissociated blastomeres, release of develop- mental factors, Echinoidea BRACHET divisions, mechanism, Anostraca FAUTREZ dry mass/water ratio, Echinoidea BEREITER dynamics, Echinoidea, Lamelli- branchia VASSETZKY early, chromosome elimination, microcinema- tography, Diptera CAMENZIND ULRICH — , effect of puromycin, Gastropoda BOON Echinoidea CZIHAK MTKI effect of cytochalasin, electron microscopy, electrophysiology, Anura BLUEMINK LAAT heat-shock & Li, causal study, Gastropoda BOON UV irradiation, Gastropoda LABORDUS electrical coupling & membrane permea- bility, Amphibia LAAT electron microscopy, Aves FAINSTAIN , Lagomorpha GONDOS & experimental study, Anura, Urodela PERRY SELMAN experimental study, Urodela LEFRESNE formation of blastula, Coleoptera HAGET interference microscopy, Echinoidea BEREITER karyomere formation, effect on development, Echinoidea WOLFE mechanisms of cytodifferentiation, Gastro- poda GEILENKIRCHEN microcinematography, Anura, Urodela BOTERENBROOD HARA mitotic apparatus, biosynthesis, Echinoidea MOAV , protein, Echinoidea MIKI , structure & function, Echinoidea KIEFER — cycle, transformation, Amphibia, Chondrostei DETTLAFF GOLISHEVA — phases, duration, Anura DETTLAFF RUDNEVA morula development in presence of I.U.D., Rodentia KELLY mosaic eggs, ultrastructure, Lamelli- branchia HUMPHREYS physiology, Echinoidea KOJIMA protein & RNA, activation of synthesis, Echinoidea WILT — synthesis, localization, Gastropoda WAL regulation, Rodentia MARCUS RNA synthesis, Echinoidea KANKI spiral, cell interactions CATHER stages, effect of father, Lagomorpha, Rodentia MAURER — , changes in uterine environment, Lagomorpha, Rodentia ELLIOTT — , uterine proteins in vitro, Lagomorpha MAURER subcellular fraction supporting protein syn- thesis, blastula, Anura GRANGER Teleostei KIRCHEN thymidine incorporation, Teleostei ROLLINS Urodela SAWAI CLOACA see Urogenital system CLONE(S) see Asexual reproduction; Cell(s); Cell heredity COELOM see Body cavities COLCHICINE see Antimitotic agents COLLAGEN Amphibia KATO deposition during metamorphosis, Anura REYNOLDS different forms, characterization, Aves TRELSTAD Echinoidea TONEBY embryo, Ascidiacea PATRICOLO fibres, resorption, tail metamorphosis, Anura ITO lamellae, cornea, fibrous architecture, Aves TRELSTAD polymerization, Vertebrata KEMP role in eye development, Aves COULOMBRE tissue interaction, Aves HAY secretion by epithelia, Aves HAY synthesis & morphogenetic role, submandibular, epithelium, Rodentia BERNFIELD 253 COLLAGEN (contd.) — , cell differentiation in vitro, Aves COLEMAN — , correlation with chondroitin sulfate, chon- drocytes, Ave s SOLURSH tail fin, origin, Anura, Urodela GONA umbilical cord, Homo UYSAL wound healing, Mammalia WATTS COLOUR PATTERNS see Chromatophore(s); Pigment(ation) COMPETENCE (inductive) early stages, Urodela GRUNZ ectoderm, Urodela JOHNEN somitic mesoderm, Aves KIENY CONGENITAL MALFORMATIONS see Malformations CONNECTIVE TISSUE see also Fibroblast(s) cartilage, bone, lung, kidney, histochem- istry, enzymology, electron microscopy, Artiodactyla, Aves, Homo, Rodentia KNESE collagen, characterization, Aves TRELSTAD — , polymerization, tracer study, pupa, Lepidoptera, Orthoptera ASHHURST extracellular fibers & basement membranes, relation to morphogenesis, Rodentia KOSTOVIC SVAJGER fibrillogenesis, Anura, Homo, Rodentia, Teleostei WATANABE filament formation in regeneration, Turbellaria PEDERSEN mast cell, Rodentia BURTON — — , electron microscopy, Urodela SETOGUTI , formation, molecular biology, Rodentia CSABA , histochemistry, ultrastructure, Rodentia SEFTALIOGLU CORPUS ALLATUM experimental histophysiology, Insecta CORPUS LUTEUM relation with embryo, Artiodactyla PFLUGFELDER HAY CORTEX see Cell(s); Egg(s) CORTISONE see also Steroids effects, Amphibia, Teleostei HANKE — on gestation & foetal development, Rodentia MERCIER hydro-, effect on embryonic cells in vitro, Aves WHITE — , skin, Aves NOVEL teratogenesis, Aves, Mammalia CLAVERT CRANIUM see Skull see also Chondrocranium CULTURE (egg, embryo etc.) see also Organ culture; Tissue culture blastocyst, chemical teratogenesis, Rodentia MITCHELL — , cytology & endocrinology, Homo, Primates, Rodentia BAKER — , effect of pesticides, Aves WAINWRIGHT — implantation, Mammalia GLENISTER — , nutrition, Lagomorpha, Rodentia BENTYN CHOROSZEWSKA — , Rodentia WROBLEWSKA — storage, effect of C02, Aves KONISHI KOSIN blastoderm, Aves LUTZ — , histochemistry, Aves VAKAET — , incorporation & transport of labeled metabolites, Aves BAKER — , origin of asymmetry of heart and ovary, Aves LEPORI blastomeres, isolated, Gastropoda VERDONK Cestoda SMYTH descriptive material, first 72 hours, Aves LUCEY early blastoderm, role of SH-groups in primary induction, Aves RAO — differentiation, Rodentia LEVAK SKREB SVAJGER — embryo, influence of genotype & environ- ment on developmental rate,/?odenri'aMcLAREN , manipulation, Mammalia MOOR — stages, various treatments, Artiodactyla POLGE effect of antibiotics on meso- & ectoderm, Anura KELLEY spermine on differentiation & morpho- genesis, Aves BUTROS egg, Rodentia YANAGIMACHI — , energy requirement & fusion, Rodentia HOPPE — , fertilization, Mammalia MOORE THOMPSON — in follicle, maturation, Rodentia TSAFRIRI — , nutrient requirement, Artiodactyla, Carnivora, Rodentia WHITTINGHAM embryo, Diptera COUNCE — Homo FRANCOEUR — , Mammalia NEW — , Polychaeta KNIGHT — , Porifera KOROTKOVA — , Rodentia BENOIT JENKINSON ROBKIN — , carbohydrate metabolism, Homo, Rodentia STERN — , drug bio-assay, Aves BOONE — , early post-implantation stage, metabolic requirements, Rodentia GUNBERG — , effect of Li & Hg, Aves FOOTE — , teratogens, Rodentia SHEPARD TANIMURA — , in serum, teratogenesis, Rodentia GUNBERG — in vitro, Rodentia BUEHR — , microcinematography, Diptera CAMENZIND ULRICH — , morphogenetic movements & tissue differentiation, Rodentia DEUCHAR — , uptake of DNA, Aves, Rodentia LURQUIN eye primordia, determination & regulation, Cephalopoda MARTHY fertilization, Carnivora, Lagomorpha, Rodentia — , Mammalia — , electron microscopy, Rodentia — in vitro, Primates, Rodentia formation of embryonic membranes, Rodentia gastrula, Rodentia gonads, interactions during development, Aves FR1TTS growth-limiting medium, regional biochemical effects, Aves HICKEY KLEIN imaginal disc, cell adhesion, Diptera SPREY , differentiation, Diptera TURNER , evagination & differentiation, Diptera MANDARON larvae & adults, Trematoda JAMES malformations, Rodentia WRBA Mammalia BIGGERS GLENISTER metabolism & differentiation, Rodentia WRBA mouth & teeth induction, Urodela CAPURON mutant embryos, Rodentia STEIN nervous tissue, biochemistry, Aves TEITELMAN , electrophysiology, Aves SUBURO neural differentiation, Aves ADLER neuropore closure, effect of cytochalasin, Aves, Rodentia SHEPARD oocyte maturation, Rodentia SZYBEK , suitable media & metabolism, Mammalia CROSS parasitic larvae, Copepoda COSTANZO placenta, perfused, effect of gonadotropins on steroid synthesis, Homo CEDARD — , structure & hormones, Homo BAKER preimplantation stages, Rodentia WHITTEN , effect of oviduct fluid, Mammalia KILLE , uterine proteins, Lago- morpha MAURER protein metabolism in relation to growth & differentiation, Aves HICKEY KLEIN sporocyst & metacercaria, Trematoda HOWELL storage at low temperature, embryo, Rodentia WITTINGHAM HUNT CROSS NODA FRANKLIN WRBA BENOIT 254 Teleostei CHAMBOLLE tooth germ, epithelial-mesenchymal inter- action, Rodentia TAKEUCHI trophoblast, Rodentia McLAREN — behaviour, Mammalia GLENISTER viviparous forms, Teleostei DEPECHE CYCLIC AMP see Nucleotides CYTOCHEMISTRY see Histochemistry CYTOGENETICS see Cytology CYTOLOGY (& cytogenetics) see also Chromosomes congenital malformations, Artiodactyla ISHIKAWA & abortions, Homo KAJII cultured cells, Diptera DOLFINI cytogenetics, embryo in vitro, Rodentia SHIMADA — , Teleostei OJIMA Diptera COUNCE FOSKET GOPALAN epithelium, regeneration, Rodentia DECK gametogenesis, fertilization & cleavage, Echinoidea, Rodentia SKALKO Gastropoda MANCINO NOWAKOWNA SEMBRAT gynogenesis, Teleostei KOBAYASI Hirudinea PUCCINELLI liver regeneration, Rodentia RYABININA mesonephros, Ares AMADO mitotic mutants, part, binucleated erythrocytes, Aves BLOOM molecular, oogenesis, Anostraca, Hymenoptera CASSIDY oocyte & vitellogenesis, Anura DUMONT oogenesis, Diptera BROWN ovulation, fertiliziation & development, Homo, Primates, Rodentia BAKER Phasmida SCALI sex differences, Aves KOSHIDA silk gland, Lepidoptera DAILLIE skin, larval, Amphibia BYTINSKI Thysanura KOSCIELSKI Turbellaria GIANNINI PUCCINELLI CYTOSTATIC AGENTS see Antimitotic agents CYTOTOXIC AGENTS see Drugs DEDIFFERENTIATION see also Metaplasia denervated limb, cytochemistry, Urodela HEARSON lens regeneration, ultrastructure & bio- chemistry, Urodela YAMADA regeneration cells, Annelida BOILLY RNA synthesis, Amphibia BURGESS DEOXYRIBONUCLEIC ACID see also Nucleic acids analogues, effect on development, Echinoidea GONTCHAROFF B-chromosome, Orthoptera GIBSON central nervous system, quantitative study, Rodentia FRASCHINI MANFREDI control by nuclear & cytoplasmic substances, Aves, Rodentia JANDIERI TUMANISHVILI cytoplasmic, Amphibia BRACHET — , eggs, Ascidiacea D'ANNA PUCCIA — , in embryo, Amphibia BALTUS HANOCQ differentiating cells, physico-chemistry, Vertebrata BOLLUM DONNELLY KARASAKI MODAK TRAURIG embryonic, effect of irradiation & alkylating agents, Aves TEMPEL exogeneous, biological effect, Aves Rodentia LEDOUX — , substrate for DNA synthesis LURQUIN — , uptake, embryos & explants, Aves, Rodentia LURQUIN extra, germinal vesicle, Orthoptera KUNZ extrachromosomal origin & function, oogenesis & early stages, Orthoptera CAVE eye, phase specific gene activity, Vertebrata VAHS — lens, actinomycin, Aves MODAK differentiation, Aves MODAK template activity, Aves MODAK — , retina, Rodentia MARSHAK STROEVA germ line limited, Diptera KUNZ M, relation to mitochondria, liver, Rodentia neural retina, regeneration, Urodela WEBER WELLAUER MITASHOV SINITSINA STROEVA oocytes, Amphibia HANOCQ redundant, characterization, Rodentia SMITH relation with nuclear size, embryo, larva, adult & germ line, Ascidiacea, Gastropoda REZENDE SCHREIBER , postembryonic organogenesis, Gastropoda FALLIERI — — 02-concentration, fibroblast, Aves MUSY replication in cultured cells, Diptera BARIGOZZI HALFER ribosomal, Anura BIRNSTIEL satellite, function in tissue regeneration, Decapoda GRAHAM SKINNER ROLLINS stage-specific, nuclear isolation, Anura synthesis & cell cycle, regeneration, Amphibia ANTON — , control, silk gland, Lepidoptera DE TURENNE — , cytoplasmic control, neurons, Rodentia JACOBSON — during maturation, Amphibia, Echinoidea BRACHET — , imaginal disc proliferation, Diptera VIJVERBERG — , limb regeneration blastema, Urodela HEARSON oogenesis, Amphibia BALTUS HANOCQ — , Anuia FICQ relation to differentiation, part, lens, Anura MALEYVAR , skeletal muscle & mammary gland, Aves, Rodentia STOCKDALE mitosis & differentiation, induction, Anura LOWER Y transcription, myogenic cells JONES DETERMINATION (embryonic) see also Induction biochemistry, Echinoidea blastoderm, Aves LALLIER EYAL KOCHAV HADORN cellular, imaginal discs, Diptera — , regeneration of appendages, Blattariae BULLIERE — , relation with number of cell generations, Amphibia SLADECEK central nervous system, Urodela JACOBSON cleavage nuclei, effect of cytoplasmic differen- tiation, Diptera HODGETTS developmental potentiality, mitochondria, intestinal epithelium, Anura MACDONALD Diptera KALTHOFF early stages, Coleopteia KUTHE , Gastropoda CLEMENT ectoderm, in solutions of inducing substances, Urodela KOCHER egg, gradients, Echinoidea HORSTADIUS embryonic cells, Anura ANSEVIN eye primordia, Cephalopoda MARTHY genital apparatus, triploid intersexes, Diptera LAUGE head organs, Amphibia WOELLWARTH heart, temporal & spatial, Urodela DUNCAN imaginal disc, normal & mutant, Diptera GINTER kidney, Urodela ETHERIDGE molecular, melanophores, Urodela BRICK neural plate, Anura ROSSI 255 DETERMINATION (contd.) organ primordia, Lagomorpha, Rodentia GOTTSCHEWSKI ZIMMERMAN N Orthoptera VOLLMAR primary, role of DNA, RNA & protein, Orthoptera SAUER regeneration, Urodela BRYANT skin areas, Anura KOLLROS trans-, imaginal discs, Diptera HADORN DEUTERIUM DEVELOPMENT (general) see also Asexual reproduction; Life cycle(s); Morphogenesis action of pyridine nucleotides KAPLAN adaptation to land life, Malacostraca HALEY Ascidiacea MILKMAN biochemistry of imaginal maturation, Insecta ROCKSTEIN cavernicolous form, Urodela DURAND Cephalopoda BOLETZKY chemical & biochemical changes, Insecta NEWBURGH Cirripedia CRISP REES comparative study, Urodela FACHBACH Cyclostomata BAXTER Decapoda JUBERTHIE VERNET developmental pattern, relation to genome organization, Insecta, Mammalia, Tunicata LAIRD Diptera GUICHARD MILKMAN effect of albumen of different breeds, Aves GOSHCHETELIANI — — antipituitary sera, Aves VENEZIANO antisera from egg & embryo extracts, Aster oidea PEARCE artificial sweetners, Aves VENEZIANO chemicals, corrleation with effect of enzymes, Echinodermata, Turbellaria HEIN combination of factors, part, drugs & stress, Mammalia STAPLES environment, Teleostei RYLAND temperature, Diplopoda JUBERTHIE thermal stress, Diptera BRUST & supernumerary chromosomes, Orthoptera BERGERARD LESPINASSE electron microscopy, Ascidiacea CAUNTER , Diptera PRIESTER environmental & genetic control, Teleostei FOWLER experimental study, Rodentia WILSON Hemichordata BURDON Hirudinea PUCCINELLI Homo DECKER Hymenoptera GOSSWALD in vitro, Cestoda SMYTH Lamellibranchia GRUFFYDD morphological & physiological variations, various factors, Hemiptera DE REGGI Nemathelminthes KORN Nemertea IWATA Notostraca BENESCH nuclear, chromosomal & cytoplasmic changes, Anura DiBERARDINO parasitic forms, Copepoda CONSTANZO parthenogenetic form, Cladocera BETTANIN DELLA CROCE patterns, Aves CAMERON Phalangida JUBERTHIE Phasmida SCALI photocontrol BUTLER physiology, fetus, Artiodactyla SUGA plant virus vector, Homoptera KISIMOTO Polychaeta HOFMANN postnatal, role of prenatal environmental factors, Lagomorpha, Rodentia FANGHANEL SCHUMACHER rhythmicity & extraneous factors, Diplopoda BANERJEE Teleostei TAKATI Turbellaria GIANNINI MORACZEWSKI PUCCINELLI Urodela DURAND Xiphosura SCHOLL DEVELOPMENT (larval) see also Polymorphism (insects) abdomen, larval & imaginal cells, Diptera BAUTZ anatomy, Urodela BALLARD arm formation, molecular & cellular aspects, Echinoidea Brachiopoda Bryozoa cephalogenesis, experimental study, Diptera Cirripedia comparative study, lnvertebrata Copepoda FINNEGAN LARRIVEE FRANZEN RYLAND STROM SCHOELLER MOYSE JAGERSTEN COSTANZO IZAWA OOISHI Decapoda DOBKIN RICE determination of larval & imaginal charac- ters, experimental study, Diptera ALLEAUME diploid drones, Hymenoptera WOYKE Diptera EMMERT Echinoidea D"ASARO MAZURKIEWICZ effect of environment, Decapoda LUCAS parasites, Diptera BRUST temperature, O2 & water flow, Teleostei BRAUM electron microscopy, Anura FOX endocrine control, Decapoda HUBSCHMAN Entoprocta FRANZEN Gastropoda MAZURKIEWICZ growth & nitrogen excretion, effect of prolactin, Anura — , food changes, Cyclostomata histochemistry, Hymenoptera histology & morphology, Opistho- branchiata Hymenoptera in vivo & in vitro, Trematoda laboratory culture, Decapoda ARIMA BAXTER JOSHI WILLIAMS SCHMIDT JAMES MacMILLAN BLAKE , Diptera OKA , Polychaeta BLAKE Lamellibranchia MAZURKIEWICZ metabolism, end-products, Anura ARIMA Mollusca D'ASARO Nematoda COLLIN Nemertea CANTELL parasitic forms, Copepoda IZAWA physiology, Ascidiacea WALLACE Pogonophora JAGERSTEN Polychaeta CAZAUX GIDHOLM MAZURKIEWICZ queen determining substance in royal jelly, Hymenoptera REMBOLD relation to parental generation & selection, Diptera, Lepidoptera LEGAY Scyphozoa WIDERSTEN sporocyst & metacercaria in vitro, Trematoda HOWELL subterranean species, Copepoda LESCHER temperature tolerance, Teleostei GRODZINSKI thorotrast, uptake & fate, Cyclostomata BAXTER transitory organs, morphology, Crustacea, Gastropoda, Malacostraca FIORONI veliger stages, structure, nutrition & digestion, Gastropoda FRETTER DEVELOPMENT (postembryonic, fetal) Acarina CASSAGNE Arachnida EMERIT LEGENDRE Chondrostei EMELIANOV comparative, Aves, Mammalia PORTMANN effect of hormones on nucleic acid & protein synthesis, Blattariae, Diptera SHAAYA hormonal regulation, Diptera BERENDES Insecta GOUIN metabolism & respiration, neonatal, Artio- dactyla, Homo GEBHARDT Myriapoda GOUIN polymorphism, environmental factors, Homoptera LEES role of prothoraric gland, Blattariae BODEN STEIN DEVELOPMENTAL GENETICS see Genetics 256 DEVELOPMENTAL PATHOLOGY see Pathology DEVELOPMENTAL PHYSIOLOGY see Embryology (experimental); Embryology (physiological) see also Development DIAPAUSE blastocyst, factors causing resumption of development, Marsupialia TYNDALE egg, controlling factors & structural changes, Orthoptera SCHWALM — , Lepidoptera KRAUSE embryonic, carbohydrate metabolism, Anostraca CLEGG — , cytology, Mammalia BAEVSKY — , effect of photoperiod & temperature, Diptera BRUST Oligochaeta SAUSSEY DIAPHRAGM see Body cavities DIET see Nutrition DIFFERENTIATION see also Metaplasia action of pyridine nucleotides KAPLAN adrenal gland, chorioallantoic graft, Aves CHEVALLIER & dedifferentiation, regeneration, Turbel- laria TRAMPUSCH ATP synthesis, Teleostei, Urodela CRAWFORD biochemistry, Anura SALLACH — , Dipteia, Rodentia URSPRUNG — , parotid gland, Rodentia GORDON capacity, epithelium, Aves PASSAPONTI cell, Echinoidea OHASHI — interactions, Amphibia NAKAMURA TAKASAKI — , electron microscopy, Teleostei THOMAS cells infected by microorganisms, in vitro, Blattariae BROOKS cellular, Anura, Aves LOVTRUP — , Aves CAMERON — & cell movement in vitro, Diptera ROSALES — , autoradiography, Anura DOURNON — , causal biochemistry, Urodela WILDE — , imaginal discs, Diptera HADORN — , in vitro, Hydrozoa SCHMID — , in vitro, Vertebrata CURTIS — , integument, epithelial-mesenchymal inter- actions, larva through metamorphosis, ultra- structure, in vivo & in vitro, Anura GOLDSMITH — , liver, biochemistry, Aves HOUSSAINT LE DOUARIN — , mechanism, early stages, Rodentia TARKOWSKI — , protein synthesis MELLER — , genetic control, Vertebrata SCHOLL — , regeneration, Hydrozoa AOTO — , ribosomal structure & function, Anura FORD — , role of microenvironment, Aves McKENZIE — , structural & functional, cartilage & bone, Mammalia MAZHUGA — , translational factors, Mammalia HOLLAND — , various techniques KESSEL — , virus infection, Aves WATANABE chemical, egg, Pulmonata MORRILL chromatophores, Urodela DUNCAN chromosomal changes, Urodela SIGNORET cleavage, Amphibia NAKAMURA TAKASAKI connected with gene amplification, Urodela LOHMANN cytoplasmic control, Anura BALINSKY — fragments, Urodela WILDE de- & redifferentiation, amelocyte, Rodentia MOE denervated limb, cytochemistry, Urodela HEARSON early, effect of spermine, in vivo & in vitro, Aves BUTROS — , relation to division chronology, Gastropoda BIGGELAAR — , transplantation, culture, Rodentia LEVAK SKREB SVAJGER ectoderm, influence of homogenates of dif- ferentiating tissues, Anura, Aves, Urodela LOPASHOV ectodermal, effect of lithium, Urodela ENGLANDER effect of extra- & intracellular inorganic ions, Hydrozoa MACKLIN hormones, electron microscopy, auto- radiography, in vitro, Lepidoptera BERRY ions & polyions, electron microscopy, Amphibia LEHMANN steroids, Anura, Aves WURMBACH temperature, pH & metabolites, ultra- structure, Urodela LEHMANN teratogens, Anura, Aves WURMBACH thyroid hormone, Anura, Aves WURMBACH tissue-specific antibodies, Anura SHAVER — on cell cycle & proliferation, Urodela BRUGAL embryo in vitro, Rodentia DEUCHAR — , nucleo-cytoplasmic interaction, Echinoidea KINOSHITA embryonic & extraembryonic tissues, Rodentia MULNARD — ■ cells, in vitro, Diptera SEECOF , Urodela BEETSCHEN DUPRAT endoderm, Aves JACOB enzyme appearance, Diptera SULLIVAN epi- & hypoblast, electron microscopy, Aves KARLIN epithelial, genital region, regulative mecha- nisms, Rodentia FORSBERG explanted embryo, protein metabolism, Aves HICKEY KLEIN gene control, allophenic animals, Rodentia MINTZ genital apparatus, triploid intersexes, Diptera LAUGE — disk, Lepidoptera DEWES germ cells, metabolic control, Mammalia BISHOP heart, role of intracellular materials, Urodela DUNCAN histochemistry, neonatal liver, Rodentia MALET POURHADI TURCHINI imaginal disc, histochemistry, biochemistry, ultrastructure, Diptera SPREY in vitro, Diptera MANDARON in cleaving eggs, Gastropoda GEILENKIRSCHEN in vitro, Cestoda SMYTH , Rodentia WRBA inhibition by BUdR, Anura, Aves FABIAN interstitial cells, Hydrozoa LENHOFF to nematocytes, regulation, Hydrozoa BODE isoamylases, genetic regulation, Diptera DOANE lens, relation to DNA synthesis, Anura MALEYVAR limb mesenchyme, normal & mutant, Aves FLINT lymphoid cells, immunoglobulin, Homo, Lagomorpha, Rodentia CEBRA maintenance in vitro, heart cells, Aves TAYLOR mesenchyme in vitro, Ascidiacea SALA muscle, striated, causal biochemistry, Urodela WILDE neoblast, Turbellaria OKUNO SUGINO — in blastema, ultrastructure, Turbellaria SAUZIN nerve tissue in vitro, Aves VARON nuclear, Anura KING — , chromosomal & cytoplasmic, Anura DiBERARDINO nucleic acid-protein ratios, Rodentia BRYAN nucleo-cytoplasmic relations, Aves, Rodentia BELL oocyte, effect of actinomycin & histones, Anura FICQ organ primordia, Lagomorpha, Rodentia GOTTSCHEWSKI ZIMMERMANN potencies, blastoderm, Aves EYAL KOCHAV primary role of DNA, RNA & protein, Orthoptera SAUER primordia, effect of actinomycin, applicated during cleavage, Lagomorpha GERHARDT — , effect of teratogens, Rodentia POLACK proliferation, embryonic cells, Amphibia CHIBON promoting agents from submaxillary gland, Rodentia VARON 257 DIFFERENTIATION (contd.) protein & nucleic accid metabolism, Amphibia FAULHABER quantitative cytochemistry, Vertebrata VAHS regeneration, Urodela BRYANT relation to DNA/nuclear size ratio, Anura LAVALLE synthesis & cell division, skeletal muscle & mammary gland, Axes, Rodentia STOCKDALE , induction, Anura LOWERY hormones, Blattariae BULLIERE retina, Teleostei HOLLYFIELD RNA, Anura JANTZEN — synthesis, regeneration, Amphibia BURGESS role of cell migrations in blastoderm, Ares AZAR — — chromosomes, Diptera POULSON salivary gland, gene function, Diptera BERENDES stability in clonal cell culture, chondrocytes & lens epithelium, Ares, Rodentia EGUCHI OKADA TAKEICHI time preceding, retinal receptors, Axes MORRIS tissue, effect of hormones on enzyme synthesis, Amphibia, Axes BOELL — , in vitro, relation to developmental potential & stage, Lepidoptera BROOKS — , proteins, Gastropoda MINAFRA tooth germ, Anura SPINELLI ultrastructure, Urodela VAHS — , RNA & protein synthesis, Amphibia JACOB undifferentiated & differentiated cells, equilibria, Turbellaria CHANDEBOIS virus nucleic acids as agents involved, Anura MIZELL DIGESTIVE TRACT see also specific parts & associated glands, experimental study, Anura CAMBAR bursa pharyngea, evolution, Homo SLIPKA colon, congenital dilatation, causes & pre- vention, Axes, Homo, Rodentia PRINS differentiation, Ascidiacea BURIGHEL duodenum, hormonal control, Axes BETZ effect of nutrition, Amphibia LESTAGE enzyme synthesis, control, Echinoidea VACQUIER experimental study, Axes LE DOUARIN functional development, Homo TAKITA histochemistry, Amphibia, Mollusca KOSHIDA histo- & morphogenesis, Teleostei BERNARD intestinal epithelium, microchemistry, Rodentia BOTH intestine, function, Homo DAIKOKU — , nerve plexus, electron microscopy, Homo TAKITA midgut, storage tissue, electron microscopy, Araneida SEITZ morphogenesis, ultrastructure, embryo & larva, Anura ALBERT organ culture, Axes SIGOT postnatal, ultrastructure, Insectixora MORRIS proteolytic enzymes, Amphibia, Axes FRATELLO vascular changes, perinatal, Rodentia MARSK DISAGGREGATION see Cell(s) see also Tissue culture DRUGS (& other biologically active chemicals) see also specific classes of agents (Antimitotic agents etc.); Teratogenesis; Thalidomide action in vitro, Rodentia KAITILA LAHTI SAXEN addictive, effect on brain metabolism, Rodentia KURIYAMA antihistamines, teratogenesis, Axes KING antimalarial, teratogenesis, Axes SULLIVAN bio-assay, embryo in vitro, Axes BOONE blastotoxic, Vertebrata SEGAL cannabis. LSD etc., teratogenesis, Lago- morpha, Rodentia PERSAUD cleft lip & palate, Mammalia STEFFEK containing piperazin ring, teratogenesis, Rodentia DRUGA effect on fertilization & early development, Artiodactyla POLGE — — glucosaminoglucans, Homo, Rodentia SCHIMMELPFENNIG — — regeneration, Lagomorpha JOSEPH insecticides, action on egg & larva, Insecta MORI medicinal plants, effect on embryo, Lago- morpha, Rodentia PERSAUD 3-methylcholanthrene, induction of drug meta- bolizing enzymes & liver growth, Rodentia AGYRIS morphine, effect on fetal placental blood vessels, Homo LEMTIS muscle relaxants, placental transmission & teratogenic effects, Rodentia JACOBS neuroleptic, influence on fertility & fetal development, Rodentia, Lago- morpha TUCHMANN — , teratogenesis, Mammalia MERCIER phenobarbital, induction of drug metabolizing enzymes & liver growth, Rodentia ARGYRIS placental passage, Homo LEMTIS — transfer, Homo NISHIMURA prevention of inherited eye abnormalities, Rodentia KONYUKHOV psychotropic, effect on embryo, Lago- morpha SCHLOOT Rauwolfia alcaloids, Rodentia MERCIER TUCHMANN reserpine, deserpidine, Rodentia MERCIER TUCHMANN stimulants & depressants, effect on heart primordium in vitro, Axes BUTROS — , animal tests, Rodentia ERIKSSON teratogenesis, mechanism of chemical protection KERNIS — , test, Primates NISHIMURA TANAKA teratogenic, activity test, Axes, Rodentia DOSTAL JELINEK theophylline, theobromine, caffeine, effects on fecundity & development, Anura, Rodentia ' CHENEY urethane, effect on neural tube & lung, electron microscopy, Rodentia HERMAN KAUFFMAN — , teratogenesis, Rodentia DAMJANOV SOLTER EAR see Auditory organ ECTODERM see Embryology (experimental); Embryology (general & descriptive) EGG(S) see also Blastocyst; Cleavage; Culture; Oogenesis; Yolk acid phosphatase, electron microscopy, Lamellibranchia PASTEELS actinomycin incorporation, Ascidiacea MANSUETO biochemical regulation mechanisms, Amphibia PETRUCCI capsule, permeability, effect of salinity, Gastropoda STYCZYNSKA — , volume changes, Opisthobranchia KRESS chimaeras produced by fusion, Rodentia SELLER chromosomes, relation to radiosensitivity, Mammalia FRANCHI cleavage, Echinoidea HIRAMOTO components, formation, Axes GERLINGER — , morphogenetic function, Coleoptera SCHNETTER constituents, maternal influence, Orthoptera WESSEL cortex, cytochemistry, electron microscopy, centrifugation, Cephalopoda ARNOLD — , role in early development, Diptera POSTLETHWAIT — , tension, Anura HANSSON MILD — , ultrastructure, Urodela DOLLANDER HATIER cortical field & ooplasmic segregation, Gastropoda RAVEN — granules, chemistry, Echinoidea, Inxertehrata EPEL , role in formation of hyaline & ferti- lization membrane, Echinodermata KANE 258 — lesions, DNA, RNA & protein synthesis, Anura BRACHET culture, nutrient requirement, Artiodactyla, Carnivora, Rodentia WHITTINGHAM cytochemical heterogeneity, Amphibia UBBELS cytochemistry & electron microscopy, Homo, Rodentia MARTINEK determination, gradients, Echinoidea HORSTADIUS developmental capacity, irradiation & aging, Rodentia BEAUMONT DNA, cytoplasmic, Ascidiacea D'ANNA PUCCIA dorsoventral polarity, origin, cytochemistry, cinematography, electron microscopy, Amphibia BLUEMINK HARA NIEUWKOOP UBBELS dynamic population patterns, Echinoidea SPRATT energy metabolism changes at fertilization, Echinoidea ASAMI — requirements, Rodentia HOPPE envelope, evolution, Arachnida WEYGOLDT enzyme activity, Cirripedia MINGANTI — , Lepidoptera PANT SHARMA fertilization membrane, biochemistry, electron microscopy, Echinoidea INOUE fertilized & cleaving, oxygen consumption, effect of methylated xanthines, Echinoidea CHENEY — , morphology & development, effect of maternal age, Rodentia JONES — , transport in female, Lagomorpha, Primates CLEWE fusion with embryoid bodies, Rodentia HOPPE geometry, Aves SMART germinal cytoplasm, Anura KOTANI ZUST — determinant, structure & ultrastructure, Coleoptera BLUZAT — vesicle, ultrastructure, Orthoptera KUNZ gynogenesis by heat treatment, Chondrostei VASSETZKY heat generation, Lepidoptera PAVE histochemistry, Polychaeta PATRICOLO implantation, Primates BUTLER — , comparative study, Mammalia STRAUSS — , electron microscopy, cytochemistry, Mammalia JIRSOVA inclusions, origin & function, Anura, Urodela TOMPKINS incorporation of radioactive precursors, Polychaeta TWEEDELL information transfer from follicle, Gastropoda RAVEN jelly, chemistry, physiology, Amphibia HUMPHRIES — coat & chemical factor in fertilization, Anura BARBIERI CABADA OTERINO — , specificity in fertilization, Anura SHAVER K & Na content, ionic permeability, Echi- noidea, Teleostei HORI macromolecules, transfer from mother, Anura NACE maturation, Amphibia HUMPHRIES — , Cestoda OGREN — , cytology, electron microscopy, Homo, Rodentia CALARCO — divisions, mechanism, Anostraca FAUTREZ — , DNA synthesis, Amphibia, Echi- noidea ' BRACHET — , immunology, Teleostei APEKIN — in follicle, in vitro, Rodentia TSAFRIRI — , metabolism, Echinodermata, Urodela FICQ — , nucleic acid metabolism, Amphibia HANOCQ — , regularities, Amphibia, Chon- drostei AISENSTADT DAVIDOVA DETTLAFF — , regulation, Chondrostei, Teleostei FALEEVA meiosis, dynamics, Echinoidea, Lamel- libranchia VASSETZKY — , effect of inhibitors on crossing over, Diptera ROTH — , electron microscopy, Diptera ROTH — , synaptonemal complex, Diptera ROTH — , , Lepidoptera KING membrane, changes at fertilization, electron microscopy, Echinoidea INOUE — permeability, activation, role of Ca, Anura MORRILL — , unfertilized & fertilized eggs, electron microscopy, Echinoidea HUMPHREYS metabolism, Mammalia BIGGERS — , Orthoptera HANSEN mitochondria, Echinodermata, Poly- chaeta MAJORCA mitotic apparatus, Echinoidea IVERSON morphology, Heteropteia MAZZA mucin, Gastropoda D'ANCONA nucleic acid metabolism, Rodentia TSAFRIRI nucleolar biochemistry, Echinodermata, Lamellibranchia VINCENT nucleotides, acid-soluble, Echinoder- mata YANAGISAWA — , , Echinoidea ISONO nurse, cause of non-development, Gastropoda HADFIELD oocyte, anaerobiosis, Anura VALDEZ — & ova, ultrastructure, Amphibia HORTON — , atresia, spontaneous & radiation induced, Rodentia BEAUMONT — , coelomic material transfer from coelomo- cytes, in vitro, Polychaeta SCHROEDER — , cytology, Anura DUMONT — development, Polychaeta TWEEDELL — , DNA, Amphibia HANOCQ — , early differentiation, effect of actino- mycin & histones, Anura FICQ — , — , ultrastructure, Anura, Urodela BILLETT — , experimental fusion, Rodentia ZEILMAKER — , growth, nuclear behavior, Aves, Teleostei GAGINSKAYA — , hormonal interactions & protein syn- thesis, Anura HORTON — interaction with follicle, Rodentia SZYBEK — , isotopic labeling, Diptera FULLILOVE — , lipovitellins, Crustacea KERR — , maturation, Amphibia, Asteroidea, Homo, Mammalia BIGGERS SCHUETZ — , — & fertilization, Homo, Rodentia KENNEDY , effect of 1-methyladenine, Asteroidea KANATANI — — , electron microscopy, Asteroidea SHIRAI , energy requirement & fertility, Rodentia ZEILMAKER , fate of maternal polar granules, Diptera ROTH , hormonal induction, Urodela BARSACCHI in vitro, Rodentia SZYBEK in vitro, metabolism, Mammalia CROSS , mechanism, Asteroidea KANATANI — , nuclear proteins, histones, Echinoi- dea COGNETTI — , nucleo-cytoplasmic interactions, auto- radiography, Anura COLE — , nucleolus, Teleostei BOLOGNARI — , — ultrastructure & function, Anura JACOB — , part, nucleolus & nucleo-cytoplasmic relations, Anura DE SILVA — , products, fate in embryo, Urodela LACROIX — , protein synthesis, Homo, Rodentia KENNEDY — , — transport site, Aves, Diptera, Rodentia ROTH — , ribosomal synthesis, control, Orthoptera ALLEN — , ultrastructure, Amphibia HUMPHRIES — , — , Annelida VILLA — , — , Homo GONZALES — , uptake of hemolymph proteins, Orthoptera KUNZ — , maternal macromolecules & inter- action with macromolecules in oocyte, Lagomorpha, Rodentia GLASS — , virus transmission, Aves ROTH ooplasm transplantation, Coleoptera SCHNETTER ooplasmic reaction system, experimental study, Coleoptera JUNG — segregation, Gastropoda, Scaphopoda GEILENKIRCHEN TIMMERMANS VERDONK , Pulmonata MORRILL overripeness, experimental, relation to anatomy & chromosomes of embryo, Mammalia MIKAMO oviposition, effect of hormones, Orthop- tera PENER — , oviducal secretions, fluorescence micros- copy, histochemistry, Anura SHAVER ovulation, cytology & endocrinology, Homo, Primates, Rodentia BAKER 259 EGG(S) (contd.) — , effect of hormones, Anura HANAOKA — , histophysiology, Rodentia ANDERSON — , hormonal control, Rodentia STERN peri vitelline fluid, Anura SALTHE peroxisome & peroxidase, Anostraca ROELS phosphagens, Echinodermata YANAGISAWA physical properties, Echinoidea HIRAMOTO polar lobe, cytology, Lamellibranchia FUKE pi omplantation, enzymes, Rodentia DALCQ proteins, Phasmida KOCH — , actin-like, Echinoidea Ml Kl — synthesis, Echinoidea IKEDA regulation mechanism of development, Rodentia GATES respiration, Gastropoda GEILENKIRCHEN — , relation with embryonic mortality, Artiodactvla TORRES resting, Cladoceia BETTANIN DELLA CROCE ribosomal & glycogen configurations, electron histochemistry, Anura HAY ribosome formation, control, Echinodermata, Lamellibranchia VINCENT RNA & protein synthesis Invertebrata RITSCHARD — , maternal, localization, Echinoidea HARRIS — polymerase, Anostraca IYEIRI rotation in utero, relation with symmetry, Lacertilia RAYNAUD shell, formation & structure, Aves HEYN — , structures & properties, Aves TYLER — , ultrastructure, Anostraca DE MAEYER structure, genetics, Diptera COUNCE superovulation, fertilization & development of eggs, Artiodactyla TORRES transfer, Artiodactyla POLGE — , Lagomorpha ADAMS — , Mammalia JIRSOVA ROWSON — , Rodentia LARSSON MARSK ZEILMAKER — , non surgical, Artiodactyla FUKUMITSU SOMA SUGIE transport, Lagomorpha, Rodentia HARPER — , electron microscopy, cytochemistry, Mammalia JIRSOVA ultrastructure, Ascidiacea LA SPINA — , Mollusca, Polychaeta DE LEO — , Teleostei CHAMBOLLE — , & metabolism, Primates, Rodentia BAKER — , ovulation through cleavage, Aves FAINSTAIN unfertilized, messenger RNA, Echinoidea RINALDI — , storage methods, Lagomorpha, Rodentia ELLIOTT — , transport in female, Lagomorpha, Primates CLEWE water & ion fluxes, oocyte, Anura DICK white, role in development, Aves FRITZ x-irradiation, Diptera ULRICH zygote development, physiological, biochemical, Lagomorpha STAPLES EGG MEMBRANES see Egg(s); Embryonic membranes EGG SHELL see Egg(s) ELECTRON MICROSCOPY see also Subcellular components abnormal tissues from mutants, Rodentia JOHNSON accessory glands, male, Diptera ACTON adipose tissue, mitochondria, Rodentia BARNARD adrenal cortex, biochemistry, culture, Rodentia ROOS — gland, Aves DOLLANDER HATIER GRIGNON — medullary cells, Rodentia WOOD — transient zone, Rodentia CANNON SUCHESTON alcaline phosphatase, Echinoidea MILLONIC amitosis, Vertebtata PEHLEMANN autonomic ganglia, adrenergic inhibitory terminals, Rodentia CSILLIK KALMAN KNYIHAR 260 — nervous system, peripheral, in vitro, Aves, Rodentia PRESLEY autoradiography, central nervous system, part. cerebellum & cortex, Aves, Rodentia MELLER — , enchondral osteogenesis, contribution of cells & matrix, Lagomorpha, Rodentia MAZHUGA — , epidermis, Homo, Rodentia STERN — , kidney, liver, pancreas, Aves DOSSEL — , morphogenetic agents, oogenesis & early stages, Diptera SCHWALM — , nerve cells, brain & sense organs BREIPOHL — , neuroglia, Rodentia VAUGHN — , neurons & fibres, limb, Anura PRESTIGE — , oogenesis, Polychaeta DHAINAUT — , — , RNA synthesis, Lepidoptera BERRY — , organogenesis in vitro, Blattariae BULLIERE — , ovary, Rodentia BYSKOV — , parapineal organ, Cyclostomata MEINIEL — , parotid, cell types in proliferation, Rodentia REDMAN — , pineal organ, Aves, Mammalia, Reptilia MEINIEL — , pre- & early post-implantation, Rodentia DAMJANOV SKREB SOLTER — , protein, pineal organ, Vertebrata COLLIN — , — synthesis, Lepidoptera BERRY — , regeneration blastema, Turbellaria BETCHAKU — , retina, part, cerebellum & cortex, Aves, Rodentia MELLER — , RNA & protein synthesis, differentiating cells, Amphibia JACOB — , — turnover in regeneration cells, Turbellaria, Urodela HAY biogenic amines & glycogen, effect of para- thion, Aves MEINIEL blastocyst, Lagomorpha, Marsupialia TYNDALE — & uterus, implantation, part, delayed, Carnivora GULAMHUSEIN — implantation, Mammalia GLENISTER blastoderm, differentiation potency, Aves EYAL — , epi- & hypoblast, Aves KARLIN blastomeres, mosaic eggs, Lamelli- branchia HUMPHREYS brain & retina, Mammalia LIERSE — , area postrema & subfornical organ, Carnivora, Primates WARTENBERG — , neurc-ophthalmic structures, Tetra- poda WEIDMAN cell contacts & movements, Anura, Aves, Teleostei TRINKAUS , developmental changes, Echinoidea LUNDGREN — interaction with matrix, early stages, Aves MANASEK — periphery, neuroectoderm, Anura DEKKER — surface, Aves LESSEPS cells in vitro, motility, Amphibia FREED — undergoing morphogenetic movement, Anura BAKER central nervous system, Aves LYSER , experimental teratogenesis, Rodentia HAYASHI cerebellum, Primates KORNGUTH Cestoda COLLIN chemoreceptor cells, Carnivora, Homo, Rodentia KRAUS chromatophores, Amphibia BAGNARA — , cytodifferentiation, Amphibia OBIKA chromosome puffs, Diptera RASCH — , early stages, Rodentia ENDO SHIMADA cilia, embryo, Cephalopoda BOLETZKY cleavage, Anura, Urodela PERRY SELMAN connective & supporting tissue, Artiodactyla, Aves, Homo, Rodentia KNESE cornea, Aves HAY corneal stroma, collagen lamellae, Aves TRELSTAD cortex cerebri, enzymes, Rodentia KAUFMANN cutaneous nerve pattern, effect of x-rays, Aves MAUGER — structures, Homo HASHIMOTO cytochemistry & autoradiography, germ cells, Rodentia WEALKY cytology, Diptera FOSKET cytoplasmic components, influence on gene transcription, Amphibia, Gastropoda GEUSKENS dentine, Teleostei HEROLD dermal glands, Hemiptera, Lepidoptera LAI-FOOK developmental stages, Annelida VILLA , Ascidiacea CAUNTER differentiating cells, Amphibia JACOB differentiation, effect of various factors, Urodela LEHMANN digestive tract, Insectivora MORRIS , embryo & larvae, Anura ALBERT Diptera PRIESTER dorsoventral gradient, origin in egg, Amphibia BLUEMINK ductus deferens, Homo HOLSTEIN early development, Amphibia NAKAMURA , Echinoidea MILLONIG — embryo, Gastropoda SATHANANTHAN — neurogenesis, Rodentia HINDS — stages, Diptera JACOBSON , Marsupialia TYNDALE , Rodentia STERN . x-irradiation, Urodela ALEXANDRE effects of barbituric compounds, Axes OJEDA cytochalasin on cleavage, Anura BLUEMINK ions on differentiation, Amphibia LEHMANN egg, Ascidiacea LA SPINA — , Teleostei CHAMBOLLE — , acid phosphatase, Lamellibranchia PASTEELS — & blastocyst, Homo, Rodentia MARTINEK — cortex, Cephalopoda ARNOLD Urodela DOLLANDER HATTER — implantation, Mammalia JIRSOVA — , maternal RNA, Echinoidea HARRIS — maturation, Homo, Rodentia CALARCO — membranes, changes at fertilization, Echinoidea INOUE , unfertilized & fertilized eggs, Echinoidea HUMPHREYS — i transport, Mammalia JIRSOVA embryo, Anura GIPOULOUX — , Ascidiacea, Mollusca, Oligochaeta MANCUSO — , Diptera STARRE _, Homo BLECHSCHMIDT — , Rodentia PRESLEY — , Turbellaria LE MOIGNE — , certain features, Amphibia, Diptera JACOB PERRY WADDINGTON — , effect of temperature, Axes CRACIUN PREDA — , encysted, Anostraca HUMPHREYS — , fine structure, chemical treatment, Echinoidea HEROLD — , wild-type & mutant, Diptera MAHOWALD embryonic organs, Axes DOSSEL endocrine control of differentiation, Lepidoptera BERRY — glands, Cetacea, Pinnipedia YOUNG , Crustacea MEUSY , Vertebrata PEHLEMANN , hypophysectomy, Axes DOSSEL endo- & ectomtsenchyme, myoblasts, Urodela FINNEGAN epiboly, Teleostei BETCHAKU TRTNKAUS epithelial-mesenchymal interactions, limb, Anura, Urodela STURDEE TARIN excretory system, Vertebrata GIBLEY eye, Tetrapoda WEIDMAN — differentiation, protein synthesis, Axes KVINIKHIDZE — lens, Cephalopoda ARNOLD — — dedifferentiation, Urodela YAMADA epithelium, Axes FINNEGAN McLEAN protein synthesis, localization, Axes SHAMOTO regeneration, Urodela DUMONT — , retina, development & regeneration, Mammalia KEEFE fat body, Coleoptera LABOUR fertilization, Homo ZAMBONI — , Inxertebrata COLWIN — , Lamellibranchia, Urodela GINSBURG — in vitro, Rodentia NODA — membrane, Echinoidea INOUE — through cleavage, Lagomorpha GONDOS fetal membranes, Homo KERSE fin rays, regenerating, Teleostei KEMP gametes, Polychaeta FALLON — & fertilization, Annelida, Echinodermata, Mammalia FRANKLIN gametogenesis, Homo, Lagomorpha GONDOS germ cells, Anura CAMBAR , Homo WARTENBERG , Inxertebrata, Vertebrata AFZELIUS , Reptilia HUBERT , female, Rodentia IOANNOU — , normal & irradiated, Primates, Rodentia FRANCHI germinal cytoplasm, Anura CZOLOWSKA — determinant in egg, Coleoptera BLUZAT — ridge, Rodentia SOLTYNSKA — vesicle, juxta-nucleolar granules, Anura SALLES gonads, Axes AMANUMA — , Homo WARTENBERG — , interstitial cells. Axes, Rodentia SCHEIB gonocytes & oogonia, Homo LAGUCHEV haploid & diploid tissues, Anura FOX HAMILTON Harderian gland, Artiodactyla, Rodentia McCAFFERTY heart, Axes NAKAMURA — , Lagomorpha, Rodentia CHALLICE — , Rodentia GARGOUIL — , electrolyte metabolism, Axes KLEIN — , larval & adult, Urodela GROS — , part, teratogenesis, Axes, Rodentia LAANE LOS ROEST hematopoiesis, effect of phytohemagglutinin, Lagomorpha HOSTETLER — , supporting tissue, Axes, Mammalia HOSTETLER hemocytes during moult cycle, Lepidoptera LAI-FOOK Herbst's & Grandry's corpuscle, choline sterase, Axes SAXOD histochemistry, neuroblasts, spinal ganglion, Axes PANNESE — , ribosomal & glycogen configurations, egg & embryo, Anura HAY hormones, effect on development, Diptera OKADA hypophysis, Homo, Rodentia HACH — & median eminence, Anura HERBERT , Rodentia JARSKAR EURENIUS hypothalamus & hypophysis, Axes GRIGNON GUEDENET imaginal discs, Diptera FRISTROM , leg, Diptera SPREY induction & differentiation, Urodela VAHS — systems, Anura EAKIN KELLEY insular tissue, Rodentia DE HOYOS integument, nervous system, coelom & yolk sac. Cephalopoda FIORONI interdigital space, cell death, Axes PAUTOU interstitial nerve cells, pyramid. Mammalia DAS intestine, cell organelles, histochemistry, Rodentia VOLLRATH kidney, Rodentia IOANNOU — differentiation, Rodentia RAPOLA — , electron autoradiography, Axes DOSSEL — tubulogenesis in vitro, Rodentia WARTIOVAARA larval tissue, Anura FOX limb morphogenesis, Mammalia KELLEY liver, Homo SEIDL — , electron autoradiography, Axes DOSSEL — , neonatal, Rodentia MALET POURHADI TURCHTNI — , role of hormones, Axes BENZO lung, Carnixora, Marsupialia FAULKNER — , effect of urethane, Rodentia HERMAN KAUFFMAN — epithelium, part, action of heterologous mesenchyme, Axes DAMERON MARIN mast cell, Rodentia SEFTALIOGLU , Urodela SETOGUTI meiotic prophase, Diptera ROTH melanophores, pigment granules, Teleostei BEREITER mesenchyme cells, primary, Echinoidea UEMURA mesonephros, Axes RODRIGUES metamorphosis, Anura SPIEGEL — , Anura, Ascidiacea WATANABE microglia, Rodentia BRICHOVA mitochondria, muscle, Artiodactyla LEESON morphogenesis, early, Axes GALLERA NICOLET 261 ELECTRON MICROSCOPY (contd.) morphogenetic movements, Aves MANASEK muscle development & degeneration, Anura MUNTZ — , skeletal, Aves FISCHMAN , Homo HOLLINSHEAD mutants, Diptera PERRY WADDINGTON myelin sheaths, central nervous system, Rodentia PETERS myoblast, skeletal, Aves BAKER myogenic cells JONES necrosis in ontogeny, Aves, Homo MOTTET Nematoda COLLIN neoblasts, Twbellaria KISHIDA LENDER nerve & glia, olfactory bulb, Rodentia HINDS — fibre regeneration, olfactory organ, Teleostei WESTERMAN — plexus, intestine & gall bladder, Homo TAKITA nervous system, Aves ADLER , Phalangida JUBERTHIE neural crest, Aves GONZALEZ cells, Aves, Urodela JINNEROT — gland, Ascidiacea GEORGES — induction, Anura TARIN — tube, Aves BERGQUIST closure, cell aggregation & junctions, Amphibia BLUEMINK , effect of urethane, Rodentia HERMAN KAUFFMAN neuroblast, olfactory placode, Aves ROBECCHI neuroglial cells, Rodentia PETERS neurulation, Ascidiacea, Urodela LOFBERG nucleolus, salivary gland, Diptera JACOB nurse eggs, Gastropoda HADFIELD oocyte, Amphibia HUMPHRIES — , Annelida VILLA _, Homo GONZALEZ — , early, Anura, Urodela BILLETT — , lampbrush chromosomes, nucleolus, nucleoplasm, Amphibia MILLER — maturation, Asteroidea SHIRAI — , nucleolus, Anura JACOB — , ova, early embryo, Amphibia HORTON oogenesis, Ascidia, Mollusca, Oligochaeta MANCUSO — , Cladocera ZAFFAGNINI — , Diptera WATSON — , Echinoidea ENDO TSUKAHARA — , Homo, Mammalia, Urodela WISCHNITZER — , Teleostei GOTTING YAMAMOTO — & embryology, Lepidoptera MIYA — & spermatogenesis, Echiuroidea, Gastropoda, Sipunculoidea SAWADA — , RNA, Anura THOMAS — , spermatogenesis, Hydroidea STAGNI — , Twbellaria GREMIGNI oogonia & oocytes, Primates, Rodentia BAKER ovary, part, follicle cells, Rodentia MARTINEK — at metamorphosis, Anura VAN GANSEN ovulation through cleavage, Aves FAINSTAIN pancreas, Rodentia PERRIER — , electron autoradiography, Aves DOSSEL — , neonatal, Vertebrata NUGEYRE parotid, ducts, Rodentia REDMAN — gland, functional differentiation, Rodentia BLUEMINK peripheral receptor organs, Homo, Mammalia CAUNA photoreceptors, Nemertea VERNET pineal organ, Carnivora, Primates WARTENBERG placenta, Cetacea, Pinnipedia YOUNG — , Homo, Mammalia VACEK — , Rodentia TORO — , early histogenesis, Rodentia CARPENTER — , effect of teratogens, Rodentia KERNIS — , enzymes, Homo KAUFMANN — , intergeneric hybrid, pathology, Artiodactyla DENT — , ions, Homo IKONICOFF — , physiological exchange, Artiodactyla, Perissodactyla STEVEN pleuropodium, Phasmida LOUVET pole cells, re-entry, effect of UV, Diptera YAJIMA prechordal plate, Aves, Homo, Rodentia KRAUS pre-migration stage, centrifugation, Diptera YAJIMA primitive streak, Anura, Aves, Rodentia VACEK pronephros, growth & degeneration, Anura FOX — , mesonephros, Anura CAMBAR prostate & bulbo-urethral glands, Rodentia FLICKINGER quantitative, central nervous system, Vertebrata JELINEK regeneration, Ctenophora PYLILO — blastema, Turbellaria SAUZIN — , cells, Turbellaria, Urodela HAY — , cells & tissues, Urodela SCHMIDT — , limb muscle, satellite cell ratio, Amphibia, Mammalia DINSMORE renal carcinoma, differentiating, Rodentia GIBLEY retina, Aves MEYER salivary glands, Rodentia REDMAN scanning & transmission, epiboly & cell differentiation, Teleostei THOMAS scar, hypertrophic, Homo KISCHER shell gland & egg shell, Anostraca DE MAEYER skeleton, metamorphosis, Anura KEMP skin, Aves, Urodela SENGEL — , Teleostei KREJSA — , cell death & differentiation, epithelial- mesenchymal interactions, Anura GOLDSMITH — derivatives, Aves, Rodentia KISCHER somite mesoderm, Aves MEMIKOGLU spawning, Asteroidea SHIRAI sperm, ultrastructure, normal & pathological, Artiodactyla BIRCH BLOM spermatheca, Orthoptera HARTMANN spermatogenesis, Anura, Rodentfa POIRIER — , Decapoda, Teleostei KOEHLER — ', di- & polyploid, Lepidoptera DANILOVA VEREISKAYA — ', mutants, Rodentia BRYAN — , part, ribosome aggregation & discarding, Orthoptera WATSON spermatozoa, Aves BOONE — , Hymenoptera LENSKY — , Primates, Rodentia FRANKLIN — & spermatogenesis, Acarina, Chilopoda BREUCKER HORSTMANN — , antigens, location, Anura SHAVER — , apyrene, Lepidoptera FRIEDLANDER spermiogenesis, Nematoda BEAMS spicules, Echinoidea HEROLD spinal cord, Rodentia VAUGHN , fetus, Homo GAMBLE — pterylae, effect of x-rays, Aves MAUGER striated muscle, embryo, Aves, Gastropoda, Orthoptera, Teleostei TAHMISIAN subcommissural organ, Homo, Mammalia LEONIENI surface coat, early stages, Amphibia DE SILVA synapses, Rodentia FELDMAN tail degeneration, Anura FOX — primordium, Anura, Aves, Rodentia VACEK taste buds, Homo SEVCENKO teratogenesis & developmental pathology, Rodentia TORO tooth, extracellular substances, Lago- morpha SLAVKIN — germ, Anura SPINELLI , Urodela ROUX tumor cell differentiation, Rodentia KARASAKI Turbellaria MacRAE undifferentiated cells, activity, normal & regenerating animals, Turbellaria CHANDEBOIS vegetative ground plexus, histochemistry, Rodentia CSILLIK KNYIHAR vertebral cartilage, Aves STRUDEL vitellogenesis, Coleoptera AGGARWAL — , Hvdrozoa GLATZER — , Oligochaeta BONDI FACCHINI wound healing, Anura BAKER yolk, Aves BAKER — , Holostei KILARSKI — formation, Aves BELLAIRS ENGLAND — • granules, degenerating, relation with protein breakdown, Gastropoda WAL — origin, Gastropoda HADFIELD — sac, Homo NAVARATNAM ELECTROPHORESIS see Biochemistry; Biophysics 262 ELECTROPHYSIOLOGY see Biophysics EMBRYO-MATERNAL RELATION- SHIPS see also Placenta antibody transfer, perinatal, via placenta, fetal membranes, mamary gland, gut, Rodentia ANDERSON barrier, early stages, Rodentia MERKER effect of uterine contractions on fetal EEG, Homo GARCIA embryo removal & replacement, Artio- dactyla BRYDEN — transfer, early stages, Artiodactyla ROBISON humoral connection between analogous organs, Primates, Rodentia MURASHOVA ORLOVA VERBICKY VYAZOV immunology, Homo, Primates, Rodentia VERBICKY — , Homo, Rodentia KETCHEL — & nutrition, Rodentia ZIMMERMANN in intergeneric hybrids, immunology, Artiodactyla HANCOCK McGOVERN induction of anomalies, Homo NISHIMURA maternal disease, pharmaca, nutrition, etc., Aves, Homo, Rodentia PRINS — lens protein antibodies, effect on fetus, Lagomorpha DANDRIEU — macromolecules, transfer to oocyte & embryo, interaction with egg & embryonic macromolecules, Lagomorpha, Rodentia GLASS ■ — metabolic status, Lagomorpha, Rodentia GOTTSCHEWSKI physical & physiological, Artio- dactyla ALEXANDER pre-implantation stages, egg transfer, Lagomorpha ADAMS proteins from mother into early embryo, Lagomorpha KULANGARA reaction to endometrial cells, Lago- morpha PETRY role of corpus luteum, Artiodactyla HAY serum proteins, via fetal membranes & gut, Rodentia MORRIS tocopherol, Artiodactyla HIDIROGLOU EMBRYOLOGY (experimental) see also specific stages; Determination; Gradients; Induction; Morphogenesis; Organization; Regulation animalization, vegetalization, chemical agents, Arachnoidea EHN appendices, Phasmida FOURNIER Arachnoidea HOLM Aves STEDING blastokinesis, Insecta SANDER blastomere fusion, Echinoidea VITTORELLI — , normal & x-rayed, intravital microscopy, Urodela PETERS cell communication & membrane permea- bility TUPPER — interaction, Echinoidea MUTOLO with matrix, early stages, Aves MANASEK — lineage, imaginal disc, Diptera DUBENDORFER — — Li-treated embryos, Gastropoda VERDONK — — , normal & lobeless embryo, Scaphopoda DONGEN — — , relation to head pattern, Gastropoda VERDONK centrifugation, pre-migration stage, ultra- structure, Diptera YAJIMA Cestoda OGREN cleavage & early development, Lagomorpha, Odonata SEIDEL , biochemistry, Anura MELTON Coleopteta SCHNETTER cortical field, Gastropoda RAVEN cytology, molecular, Anostraca, Hymen- optera CASSIDY developmental capacity, imaginal disc & embryo, Diptera SCHUBIGER Diptera COUNCE early embryo, autoradiography, Rodentia MAIBENCA — — under kidney, teratocarcinogenesis, — stages, Aves — — , Isopoda — — , Lagomorpha, Rodentia — — , Lepidoptera — — , Mammalia — — , Orthoptera Rodentia DAMJANOV SKREB SOLTER CALLEBAUT VAKAET BARBAGALLO DE LUCA AUSTIN MIYA BRINSTER DE LUCA VISCUSO — — , actinomycin injection, Coleoptera MAISONHAUTE , effect of NGF, Aves BJERRE — — , embryo transfer, Artiodactyla, ROBISON , state of cell differentiation, Aves McKENZIE , ultrastructure, Diptera JACOBSON ectoderm development, Anura CAUNTER — differentiation, influence of homogenates of differentiating tissues, Anura, Aves Urodela LOPASHOV NIKITINA — , induced and non-, RNA, Anura THOMAS — , primarily activated, transformation by RNA, Urodela SASAKI effect of antibiotics on meso- & ectoderm in vitro, cytology, Anura KELLEY — — changes in uterine environment, Rodentia GIBBONS chemicals, applicated during cleavage, Mammalia GOTTSCHEWSKI chlorinated hydrocarbons, Echinoidea ISONO juvenile hormone, Insecta SCHOONEVELD salinity, Gastropoda STYCZYNSKA electric fields, early gastrula, Anura GOODWIN endoderm differentiation, Aves JACOB — — & mesoderm induction, relation to polarity, Urodela BOTERENBROOD NIEUWKOOP — , early differentiation, Rodentia SCHOUTEN VERWOERD — formation, Aves LUTZ extraembryonic & embryonic tissues, diffe- rentiation, Rodentia MULNARD formation of germ band, Phasmida LOUVET genetically tagged strains, Lagomorpha BEATTY germ layer cells, sorting out, Amphibia OKAMOTO differentiation, Mammalia OOSTROM grafting of reaggregated cells from blasto- derm, Teleostei OPPENHEIMER histochemistry, Amphibia KATO Homoptera PFLUGFELDER imaginal disc, regeneration & duplication, Diptera BRYANT in vitro study, Orthoptera, Phasmida KOCH integrative mechanisms, early embryo, Aves SPRATT interspecific associations between organs, Aves ROBADEY SCHOWING irradiation, UV, repair process, Gastropoda LABORDUS Lepidoptera KRAUSE mesenchyme, Rodentia MERKER mesoderm, axial, in vitro, Aves, Urodela FINNEGAN Mollusca HESS neuropore closure, effect of cythochalasin, Aves, Rodentia SHEPARD organizer, cytological study, Aves SPRATT Polychaeta HOFMANN polyembryony, Aves KNAJAZEVA positional information, Hemipteia CRICK — — , epidermis, Heteroptera LAWRENCE pre- & postimplantation, part, endocrinology, Lagomorpha, Rodentia BEIER PETRY primordia, implantation & explantation, Cephalopoda MARTHY — in vitro, Rodentia SCHWEISTHAL prospective maps, Amphibia NAKAMURA — — , Arachnoidea HOLM , blastoderm, Diptera SANG Rodentia JENKINSON WILSON role of cleavage cavity, UV micro-beam study, Gastropoda JURA egg cortex, Diptera POSTLETHWAIT segment growth, clonal analysis, Heteroptera LAWRENCE 263 EMBRYOLOGY (exp.) (contd.) segmentation, Insecia SANDER stability of embryonic structures, Aves, Rodentia ELIAS surface coat, ultrastructure & cytochemistry, Amphibia DE SILVA Teleostei WELANDER tissue primordia, cell interactions, Aves LAVARACK trophoblast, interaction with inner cell mass, Rodentia GARDNER Tunicata MORRILL twinning, Rodentia FERM ultraviolet microbeam studies, Hymenoptera AMY Urodela TESTA Vertebrata CSABA TORO Xiphosura SEKIGUCHI EMBRYOLOGY (general & descriptive) see also specific stages; Development (general); Organogenesis Acarina CASSAGNE Actinozoa LOSE V A Arachnida LEGENDRE WEYGOLDT Artiodactyla BRYDEN KNESE SACK SCHMIDT Aves PORTMANN STEDING axial organs, cinematography, Aves MENKES SANDOR blastokinesis, Cephalopoda SACARRAO body form, Cetacea PILLERI Bryozoa SILEN Carnivora SACK Cephalopoda DE LEO NATSUKARI Cestoda CHENG OGREN Chelonia RAGOZINA Chiroptera UCHIDA Cladoceta BETTANIN DELLA CROCE STOUT WOERLE Coleoptera RESSOUCHES Collembola KRZYSTOFOWICZ TAMARELLE comparative, Invertebrata IVANOVA Copepoda KOHLER Crustacea IWATA developmental anatomy, Urodela BALLARD — periods, relative duration, relation with nuclei & yolk, Teleostei, Urodela IGNATJEVA Diptera CRAIG early stages, Amphibia HORTON , Aves ROSTEDT , Coleoptera SCHNETTER , Collembola JURA , Gastropoda SATHANANTHAN , Homo O'RAHILLY — — , Hymenoptera KING , Lagomorpha, Rodentia AUSTIN , Primates BUTLER — — , Rodentia MARKERT WHITTEN , ultrastructure, Diptera MAHOWALD , — , Marsupialia TYNDALE Echinoidea D'ASARO ENDO effect of temperature, Diplopoda JUBERTHIE electron microscopy, Annelida REVERBERI VILLA , Ascidia REVERBERI , Cestoda COLLIN , Gastropoda SATHANANTHAN , Homo BLECHSCHMIDT — — , Lepidoptera MIYA , Mollusca DE LEO REVERBERI , Nematoda COLLIN , Polychaeta DE LEO , Turbellaria LE MOIGNE , encysted embryos, Anostraca HUMPHREYS formation of germ band, Phasmida LOUVET Gastropoda PORTMANN Gastrotricha TEUCHERT germ layers, differentiation, Rodentia RAZEK Heteroptera Homo MAZZA GASSER ILIES MENKES REVESZ SINGER ZAMBONI GLATZER GOUIN KRAUSE MOYSE BONS HALEY BILLINGTON PORTMANN SANDOR D'ASARO GOUIN IWATA KLEISS Hydrozoa Insecta lsopoda Lacertilia Malacostraca Mammalia microcinematography, Aves Mollusca Myriapoda Nemertea nomenclature, Mammalia normal table, histological, Cephalopoda, Crustacea, Gastropoda FIORONI Notostraca STOUT Oligochaeta PASCHMA Opisthobranchia IWATA Ostracoda WEYGOLDT Pantopoda SEKIGUCHI Phasmida, appendices FOURNIER — , pleuropodium LOUVET Pinnipedia BRYDEN Polychaeta CAZAUX LARINK preimplantation stages, electron microscopy, autoradiography, histochemistry, Rodentia DAMJANOV SKREB SOLTER Pseudoscorpionidea WEYGOLDT pumping organ, Arachnida, Pseudoscor- pionidea WEYGOLDT Rodentia HUMMEL MODLINSKI ROBERTS SINGER Rotatoria TEUCHERT serial sections available for inspection, Artiodactyla, Carnivora, Rodentia, EVANS SACK storage of embryo at low temperature, Rodentia WHITTTNGHAM Teleostei BENZIE SWANEPOEL Thysanura LARINK Trematoda CHENG Turbellaria ANDERSON FACCHINI IWATA OHSAKI unfertilized egg, Aves MUN wild animals, Mammalia BIGGERS zygote, Invertebrata KASYANOV EMBRYOLOGY (physiological) see also specific stages; Biochemistry, Biophysics; Development; Energy; Metabolism; Nutrition; Respiration, etc. Ascidiacea WALLACE basic proteins, oogenesis & early develop- ment, Echinoidea BACKSTROM biochemical regulation mechanisms, Amphibia PETRUCCI Ca metabolism, radio isotope study, Aves SIMKISS catecholamines & their receptors, Aves, Rodentia MANUKHIN cell migration, Aves BACKHOUSE BELLAIRS chemical & biochemical changes, Insecta NEWBURGH chemistry, Aves ROMANOFF cytochemistry, Teleostei YAMAMOTO developmental rate, relation with maternal environment, Orthoptera VISSCHER Diptera COUNCE early stages, Gastropoda CLEMENT , lsopoda BARBAGALLO DE LUCA , Lagomorpha, Rodentia AUSTIN , Mammalia LUTWAK , Orthoptera DE LUCA VISCUSO 264 , effect of gamete age, drugs & hor- mones, Artiodactyla POLGE , extrachromosomal DNA, origin & function, Orthoptera CAVE , in vitro treatment & transplantation, Artiodactyla POLGE effect of environment on developmental rate, early embryo in vitro, Rodentia McLAREN exogeneous DNA, Axes, Rodentia LEDOUX — — hormones & analogs, Insecta STAAL intracellular microorganisms, Blattariae BROOKS kations, Gastropoda GEILENKIRCHEN penicillin & streptomycin on early development, Aves WIERTZ polyphosphates, Aves ORTMANN temperature, O2 & water flow, Teleostei BRAUM embryo survival after feeding certain com- pounds to mother, with & without irradiation, Hymenoptera GROSCH embryos of viviparous forms in vitro, Teleostei DEPECHE endocrine control, Rodentia KRATOCHWIL energy transfer, early embryo, Aves REPORTER enzymes, early stages, Mammalia DENKER fluid & electrolyte balance, relation to terato- genesis, Aves, Mammalia GRABOWSKI growth rate, early stages, Aves BAKER histochemistry, electron microscopy, Diptera STARRE incubation, Aves BAKER interaction with virus, Aves TAHARA lateral organ, Xiphosura SEKIGUCHI metabolism, Amphibia, Echinoidea TENCER — , end-products, Anura ARIMA mycetome, embryonic, Homoptera SANDER Na, K, Ca & Mg binding, relation to meta- bolic state, ovulation through cleavage, Anura MORRILL neurotransmitters, role in embryogenesis, Anura, Echinoidea BUZNIKOV MARKOVA nutrient requirements, Aves SPRATT pleuropodia, function, Blattariae STAY regulation mechanism of development, Rodentia GATES regulatory role of mitochondria, Lepidoptera WARREN resistance & adaptation, Aves, Chelonia ZUSMAN restricted air supply, Phasmida PIJNACKER Rodentia GWATKIN MOSER WAELSCH role of egg white, Aves FRITZ silk gland, Lepidoptera DAILLIE PRUDHOMME stage-specific proteins, Diptera, Lepidoptera IMBERSKI Vertebrata CSABA TORO EMBRYOMA(S) see Teratoma(s) EMBRYONIC FLUIDS see Embryonic membranes EMBRYONIC MEMBRANES (& fluids) allantoic epithelium, effect of various agents, Aves MARRARO allantois, morphology & histochemistry, Chelonia GERZELI amniotic & allantoic fluids, relation with meso- Lagomorpha, BERTON & metanephros, Artiodactyla, — fluid analysis, Homo GEBHARDT , contribution of upper digestive tract, Artiodactyla, Lagomorpha BERTON — — , fetal contribution, Homo, Primates REYNOLDS — pressure, effect on skeletomuscular system, Aves SULLIVAN throughout pregnancy, Primates RAMSEY barrier to pathogenic bacteria, Rodentia FEDINEC chorio-allantois, cell structure, Artiodactyla, Lagomorpha BERTON — , function, Aves THESINGH — , tissues, developmental capacities, Aves LEVAK SKREB SVAJGER chorio-amnion, transport of substances, Lagomorpha, Rodentia VARMA chorionic villi, stroma, Homo DURST comparative morphology, Mammalia MOSSMAN differentiation, Rodentia MULNARD embryonic, liquid, effect of injuries, biophysics, biochemistry, Aves, Rodentia ELIAS formation in vitro, Rodentia WRBA morphogenesis & physiology, Elasmobranchi, Chiroptera WIMSATT protein transmission, Lagomorpha WILD Reptilia BELLAIRS Rodentia ORSINI role in feto-maternal relationships, Homo BAVEJA VARMA ultrastructure, Homo KERSE yolk sac, blood cells, Rodentia JONES membrane, adaptive morphogenesis, Aves WILLIER , metabolism, hormonal control, Aves THOMMES , morphology & electron microscopy, Cephalopoda FIORONI syncytium, giant nuclei, Teleostei BACHOP , ultrastructure, Homo NAVARATNAM ENDOCRINE ORGANS see also specific organs; Hormones androgenic gland, role of neurosecretion, Crustacea PAYEN as affected by mutants, Diptera DOANE Cetacea HARRISON correlation, Amphibia IWASAWA cytology, histochemistry, Teleostei OLIVEREAU effect on reproduction, Aves KAMAR electron microscopy, Aves DOSSEL , Cetacea, Pinnipedia YOUNG — — & correlations, Crustacea NEUSY embryonic, physiology, Aves STOLL experimental embryology, Rodentia DAIKOKU fetal & neonatal, Rodentia VAKAET function in embryo, Lacertilia, Ophidia RAYNAUD functional differentiation, Lacertilia RAYNAUD gonads & adrenals, androgens & estrogens, effect of hypophysectomy, Aves WOODS histogenesis, Amphibia HANKE — & interrelation, Chelonia DIMOND histophysiology, Teleostei OLIVEREAU morphogenetic role in metamorphosis, Amphibia NOWAKOWNA SEMBRAT neural gland, development & cyclic changes, Ascidiacea GEORGES , role in gametogenesis, Ascidiacea GEORGES Pinnipedia HARRISON Polychaeta HAUENSCHILD pre- & postmetamorphic, Urodela PRAHLAD prothoracic gland, in vitro, ecdysone secretion, Lepidoptera ISHIZAKI — — , role in postembryonic development, Blattariae BODENSTEIN , ultrastructure, Lepidoptera ISHIZAKI relation to gonad & oviduct, Aves GROENENDIJK growth, Aves KAMAR role in growth, moulting, & gametogenesis, Cladocera ZAFFAGNINI regeneration, Urodela MANNER Teleostei EGAMI ENDODERM see Embryology (experimental); Embryology (general & descriptive) ENERGY (developmental) chemical, central nervous system, Aves CORNER energy metabolism, Amphibia, Teleostei DUSPIVA metabolism, changes at fertilization, Echinoidea ASAMI — , oocyte in vitro, Mammalia CROSS — , RNA synthesis, Teleostei, Urodela CRAWFORD oocyte maturation, Rodentia ZEILMAKER pathways, differentiation, Vertebrata WILDE requirement for first cleavage, Rodentia HOPPE teratogenesis, Aves KAPLAN transfer, cellular interactions in monolayer cultures, Aves, Rodentia REPORTER — , early embryo, Aves REPORTER — system, mitochondria, Rodentia NAKAZAWA utilization, hemispheres, Aves JONGKIND 265 ENTEROCHROMAFFIN CELLS see Chromaffin cells ENZYME(S) acetylcholinesterase, Aves GIACOBINI activation at fertilization, Echinoidea, Invertebrata EPEL activity changes, embryonic tissues, Amphibia, Aves BOELL acrosomal, Rodentia POIRIER adrenals, correlation to function, Aves PEDERNERA aging flight muscle, Diptera BAKER alcohol dehydrogenase, Diptera SOFER aminoacyl-tRNA-synthetase, Aves GOTTSCHLING , artificial matrix, Anura GRANGER amylase, isozymes, genetic regulation, Diptera DOANE Anura SALLACH asparaginase, effect on rejection of transplants, embryo & larva, Amphibia GULLUNI SANTORO ATPase, kidney & lung, Rodentia WAYMOUTH beta-l,3-glucanohydrolase & others, fertili- zation, Echinoidea VACQUIER blastoderm in vitro, Aves VAKAET brain, esp. nucleus ruber, Rodentia SCHIEBLER carbohydrate & intermediate metabolism, fetal skin, Homo SERRI changes in chromatophores, Anura, Teleostei MATSUMOTO chemoreceptor cells, Carnivora, Homo, Rodentia KRAUS choline acetyltransferase, Aves GIACOBINI cholinesterase, cutaneous sensory corpuscles, Aves SAXOD chorionase, Teleostei YAMAGAMI collagenase, wound healing, Mammalia GRILLO connective & supporting tissue, At tiodactyla, Aves, Homo, Rodentia KNESE control, genetics, Diptera SULLIVAN cortex cerebri, Rodentia KAUFMANN dehydrogenases, changes, embryo & larva, Teleostei RAUNICH — , hydroxysteroid, localization in placenta, Homo IKONICOFF — in early embryo, Aves SPRATT — — testis, Mammalia DALCQ — , lactic & hypoxanthine, Aves CROISILLE development, Diptera FOX — , Echinoidea, Scyphozoa BLACK differentiation, cytoplasmic information, Ascidiacea WHITTAKER — , genetic control, Rodentia TRIGG disaccharidases, intestine, Carnivora, Rodentia KRETCHMER DNAse, effect of irradiation & alkylating agents, Aves TEMPEL — , function in embryo, Aves TEMPEL drug metabolizing, induction by drugs, Rodentia ARGYRIS early stages, Mammalia DENKER effect on developing & regenerating tissues, correlation with effect of chemicals, Echinodermata, Turbellaria HEIN pteridine metabolism, Lepidoptera PAPILLON egg & embryo, Cirripedia MINGANTI fat body, Lepidoptera PANT SHARMA — , preimplantation, Rodentia DALCQ electron transport, normal & achondro- plasia BARGMAN embryo, Ascidiacea D'ANNA — , Ascidiacea, Mollusca, Oligochaeta MANCUSO endoplasmic reticulum membrane, Rodentia WIDNELL erythrocyte & serum, Aves, Rodentia ATHERTON esterases, Aves CROISILLE — , non-specific, egg & larva, Anura LOBO female genital tract, Mammalia THIERY fertilization & early stages, histochemistry, Lagomorpha, Rodentia DENKER fetus & neonate, Mammalia WALKER formation & activity in liver, Anura NAGANO SHUKUYA formylase, time & tissue specificity, Diptera KIMMEL ganglia, neurotransmitter metabolism, Aves GIACOBINI genetic control, gene activation, Aves HALEY , Diptera WRIGHT — regulation, Diptera DICKINSON genetics, Lagomorpha SCHLOOT (i-glucuronidase, lung & liver, Anura, Rodentia BOCZKOWSKA glutamine synthetase, nervous tissue, Aves PIDDINGTON glycolytic, relation with respiration, early stages, Teleostei BOULEKBACHE gut, mutant, Diptera KUBLI hexokinase, activation, Urodela CRAWFORD hydrolase, acid, brain, Rodentia ALLEN TRAURIG — , head regeneration, Oligochaeta LECHENAULT hydrolytic, Anura, Rodentia FORTAK SOPINSKI hypophysis, Homo, Rodentia HACH hypoxanthine dehydrogenase, Aves BEAUPAIN in embryo, Aves, Mammalia MOOG , Invertebrata REVERBERI induction & repression in cell cultures GUSTAFSON vitro, Homo ELIASSON , particularly arginase, Aves ELIASSON — , correlation with puffing patterns, Diptera HODGETTS — , role in development, Anura SPIEGEL — , organ growth control, Rodentia ARGYRIS Insecta IMBERSKI isozymes, changes at metamorphosis, Anura KAJITA SHUKUYA — , cholinesterase, Aves, Rodentia ATHERTON — , creatine kinase in differentiation, Teleostei SCHOLL — , Diptera, Rodentia PANTELOURIS — , genetics, Lagomorpha SCHLOOT — , in early stage, Homo JOHNSON — , mutant, Diptera KUBLI — , patterns, Pisces, Rodentia MARKERT — , qualitative changes, Teleostei BOULEKBACHE kidney, experiments with actinomycin D, Rodentia SCHIEBLER — , nephrectomy, Rodentia BERTON lactic dehydrogenase isoenzymes, Anura SALTHE LDH, embryonic erythropoiesis, Aves BLANCHET — , gene homology, relation to gene activation, Teleostei WHITT — , iso-, biochemistry, genetics & biophysics, Teleostei WHITT — — , regenerating neural retina, Urodela KOROCHKIN MITASHOV , regulation, mammary gland & tumor, Rodentia WILLIAMS , skin, Rodentia QUEVEDO liver wounds, Rodentia KARKOLA localization in embryo & subcellular fractions, Amphibia, Insecta DUSPIVA limb bud, Aves NAVAGIRI lung, Aves DAMERON MARIN lysosomes, metamorphosing tail, Anura KALTENBACH — , relation to spermatozoa, Mammalia DOTT lysozyme, inductive capacity, Urodela KAWAKAMI — , synthesis in vitro, Homo ADINOLFI malate dehydrogenase, Echinoidea OZAKI microspectrophotometry, Selachii FORD nervous tissue, myelinization, Mammalia WENDER oxidase, aldehyde, genetic study, Diptera DICKINSON — , monoamine, central nervous system, Rodentia STEWART oxido-reducing, Anura, Aves, Rodentia FORTAK SOPINSKI parotid, effect of diet, Rodentia REDMAN pattern, normal & abnormal development, Rodentia PERSAUD — , ontogeny, Amphibia, Insecta DUSPIVA peroxidase, egg, Anostraca ROELS phosphagen, kinase, Aves, Insecta, Pisces EPPENBERGER phosphatase, acid, egg, electron miscroscopy, Lamellibranchia PASTEELS — , — , lung & liver, Anura, Rodentia BOCZKOWSKA — , alkaline, Echinoidea MILLONIG — , — , egg & larva, Teleostei LOBO — , effect of alkylating agents & irradiation, Aves TEMPEL phosphates in testis, Mammalia DALCQ placenta, Homo KAUFMANN 266 polymerase, inhibition by amanitin & rifam- picin, effect on morphogenesis, Amphibia BRACHET proteolytic, digestive tract, Amphibia, Aves FRATELLO queens & workers, Hymenoptera REMBOLD regulation, early stages, Anura MICELI — , genetics, Diptera KIDDER relation to morphogenesis, Mammalia WEGMANN reproduction, Hydrozoa MULLER RNA polymerase, Hemiptera FORREST , egg, Anostraca IYEIRI , liver, effect of x-rays, Rodentia MALPOIX , part, muscle cells, Aves MARCHOK skin alio- & homografts, Rodentia MAKINEN RAEKALLIO sorbitoldehydrogenase, bio- & histochemistry, Aves De FABRO spermatozoa, flagellum formation, Artiodactyla, Rodentia NELSON stomach, Aves SIGOT sulphatase, embryo, Ascidiacea D'ANCONA synthesis, Aves, Echinoidea FEDECKA — , control, Echinoidea EPEL — , — , part, digestive tract, Echinoidea VACQUTER — , effect of hormones, tissue differentiation & regression, Amphibia, Aves BOELL — , regulation in vitro, Homo JOHANSSON — , submandibular epithelium, Rodentia BERNFIELD synthetase, transfer RNA, early stages, Echinoidea ANDERSON systems, part, nitrogen metabolism, Anura JANSSENS testis, Mammalia BISHOP tissue specific, tryptophan metabolism, early stages, Anura KOSTELLOW tissues, Diptera EGLI transhydrogen catalyzation between cell cortex and mitotic apparatus, Echinoidea SAKAI tryptophan oxygenase, time & tissue specificity, Diptera KIMMEL tyrosinase, multiple forms, genetic regulation, melanocytes, Rodentia QUEVEDO tyrosine oxidase, Anura TRIPLETT variants in vitro, genetics & epigenetics, Rodentia RUDDLE wing disc, Lepidoptera LAFONT wound healing, Rodentia MAKINEN RAEKALLIO EPIDERMIS Artiodactyla LYNE autoradiography, biochemistry, Homo, Rodentia STERN cell renewal, effect of hormones & environ- mental factors, Lacertilia, Ophidia MADERSON cells, positional information & polarity, Heteroptera LAWRENCE embryonic, differentiation, Anura, Urodela BILLETT epithelium, differentiation, Annelida, Crustacea BAFFONI fetal, glycosaminoglycan changes, Homo GIANNETTI glands, metamorphosis, in vivo & in vitro, Anura GIRARD hyperplasia, Mammalia, Urodela BUTLER keratinization, hormonal induction, Teleostei BEREITER Langerhans cell, origing, differentiation & immunochemistry, Rodentia REAMS mucous cells, Teleostei KREJSA role in scale development, Teleostei KREJSA tail regeneration, Lacertilia MADERSON tonofilaments, effect of cytochalasin, Teleostei BEREITER EPIDIDYMIS pathology, Artiodactyla EPIPHYSIS see Pineal organ EPITHELIAL-MESENCHYMAL INTERACTIONS see also Induction beak morphogenesis, Aves comb and non-comb tissue grafts, BLOM Aves HAYASHI LAWRENCE integument, cell death & differentiation, larva through metamorphosis, ultrastructure, in vivo & in vitro, Anura GOLDSMITH — , morphogenesis, comparative study, Vertebrata KREJSA limb bud regeneration, Aves DUBEY NAVAGIRI PATIL — development, Aves SAUNDERS — , histochemistry, electron microscopy, Anura, Urodela STURDEE TARIN — , scales & feather differentiation, Aves GOETINCK — , xenoplastic chimaeras, Aves PAUTOU lung & skin, in vitro, Aves CARINCI — ■ epithelium, effect of heterologous, mesen- chyme, Aves DAMERON MARIN macromolecules, part, mucopolysaccharide, in vitro, Rodentia BERNFIELD role in biochemical differentiation, parotid gland, Rodentia GORDON skin derivations & teeth, in vitro, Aves, Rodentia KOLLAR — , histochemistry, Aves, Mammalia RITSCHARD tooth, Rodentia FOSSE RISNES RUCH — germ in vitro, Rodentia TAKEUCHI — , lamina, Marsupialia, Rodentia MILLER — , role of matrix vesicles containing RNA, Lagomorpha SLAVKIN wing & leg, xenoplastic chimaeras, Aves PAUTOU — bud, Aves AMPRINO CAIRNS CAMOSSO EPITHELIUM cells in vitro, locomotion & behaviour, Aves, Rodentia MIDDLETON columnar, role of microtubules in cell shape, Aves, Urodela BURNSIDE cysts, Amphibia HARTWIG derived organs, morphogenesis, Homo, Rodentia HINRICHSEN differentiation capacity, Aves PASSAPONTI — , experimental analysis, Aves STEDING mitotic activity, relation to development & main- tenance, cell orientation, Rodentia WALLS regeneration, Lagomorpha JOSEPH — , cytology, Rodentia DECK shaping forces, Amphibia, Hydrozoa BELOUSSOV EQUIPMENT see Methods ERYTHROCYTES see Blood ERYTHROPOIESIS see Hematopoiesis EVOLUTION see Genetics EXCRETORY SYSTEM see also Kidney(s), Urogenital system histochemistry & fine structure, Vertebrata GIBLEY metamorphosis, Anura CAMBAR GIRARD renal tract deformities, associated with spina bifida, Rodentia LENDON EXTRA-EMBRYONIC MEMBRANES see Embryonic membranes EXTREMITIES see Limb(s); Wing(s) EYE(S) see also Eye lens abnormalities, biochemistry, Rodentia PRITCHARD — , studied by organ culture, Rodentia KONYUKHOV antigens, Aves, Rodentia BARABANOV TITOVA VYAZOV Arachnida HOMANN 267 EYE(S) (contd.) cataract, virus induced, Aves JAASKELAINEN SAXEN cavernicolous forms, Teleostei PETERS , Urodela DURAND Cetacea PILLERI coats, induction bv retinal epithelium, Aves NEW SOME compound, descriptive & experimental embryology, Phasmida SUCH — , morphogenesis, Arthropoda WAD A connections to optic tectum, Anura FELDMAN cornea, fine structure, Aves HAY — , hyaluronic acid, Aves TRELSTAD — , induction, Gastropoda POPOV — , orthogonal collagen lamellae, fibrous architecture, Aves TRELSTAD corneal epithelium, protein secretion, Aves HAY depigmentation bv thiocarbamide, Turbel- laria KISHTDA differentiation, relation between ultrastructure & protein synthesis, Aves KVTNIKHIDZE effects of optic nerve section, Urodela GAZE — on eve cup of embryonic tissue replacing lens, Amphibia SICHAZTJLIDZE falciform process, determination of site of formation, Teleostei LOPASHOV formation during regeneration, Turbellaria KISHIDA growth, allometric. Anura JONGH — & morphogenesis, Aves COULOMB RE — , Anura HOLLYFTELD — . pre- & postnatal, Homo O'RAHTLLY histology, Anura MACDONALD immunochemistrv, A mphibia CAMPBELL CLAYTON iris & ciliarv bodv, development & terato- genesis, Rodentia STROEVA — . cellular events in regeneration & non- regeneration, Urodela REESE — , RNA synthesis activation, in vitro, Urodela REESE malformations, gene-conditioned, Rodentia GUMBRECK metaplasia, Teleostei LOPASHOV SOLOGUB morphogenesis, histochemistry, Aves MEYER mutants affecting, Rodentia CAMPBELL CLAYTON — — , developmental study, Rodentia SAZHTNA nauplius, Crustacea AOTO neural retina, regeneration, Lacertilia LOMBARDO , — , Urodela MTTASHOV SIN1TSINA STROEVA , — from pigment epithelium, Urodela MTTASHOV , — LDH isozymes, Urodela KOROCHKIN MTTASHOV optic cup, role in development of optic tectum & nuclei, Aves WENGER pigment epithelium regeneration, relation to cell cycle, Mammalia KEEFE — formation, genetics, Lepidoptera EGELHAAF pigmentation, genetic control & ultrastructure, Lepidoptera GOTTLIEB polarity, Anura FELDMAN primordia, determination & regulation, trans- plants in vitro, Cephalopoda MARTHY protuberantia sclerae, Homo PILLERI reaction to vitamin B, Anura BER regeneration, Amphibia, Teleostei HASEGAWA relation with neurogenesis, Lepidoptera W'OLSKY retina & other structures, correlation with function, Tetrapoda WTIDMAN visual pathway, Aves GOLDBERG — cells, growth cones in vitro, Anura COOKE — . changes at metamorphosis, Anura HOLLYFIELD — , development & regeneration, ultrastructure & cytochemistry* in vitro, Mammalia KEEFE — , differentiation, Teleostei HOLLYFIELD — , — & growth, morphology & physiology. embryo through adult, Anura NIAZI — . DNA. cell division, polvploidization, Rodentia MARSHAK STROEVA — , electron microscopy, Aves MEYER — . , autoradiography, tissue culture, Aves, Rodentia MELLER — , hormonal control, Aves BETZ — , induction, Anura, Aves HOPERSKAYA LOPASHOV — , postnatal, rhodopsin cycle, electroretino- gram, Carnivora BONTING DAEMEN — , regeneration, Teleostei LOMBARDO — , — , autoradiography, Anura DABAGIAN — , sensory cells & synapses, in vitro, Carnivora, Rodentia HILD — , ultrastructure & histochemistry, Mammalia LI ERSE retinal & neural tissues, transfilter induction, Anura HOPERSKAYA — cells, dissociated, tissue reconstitution, Aves FUJI SAW A — fibres, role in optic centre differentiation, Aves MARCHISIO — pigment cell, Amphibia, Teleostei HASEGAWA , differentiation in vitro, biochemistrv, Aves COLEMAN , developmental factors in yolk albumen, Aves HARRISON , growth & differentiation in vitro, Aves HARRISON — receptors, time preceding differentiation, autoradiography, Aves MORRIS retino-tectal connections, Aves COULOMBRE DeLONG Rodentia PIERRO role of collagen, Aves COULOMBRE rudiment transplantation between varieties with & without eyes, Teleostei BRICK segregation into piemented & sensory retina, Urodela JACOBSON EYE LENS see also Regeneration (traumatic) actinomycin binding to DNA, Aves MODAK Aves WOERDEMAN cataract, anterior polar, Carnivora SHUPE cell replication & nuclear degeneration, Aves LEVER MODAK UPPULURU cellular differentiation in vitro, Aves KATOH crystallins, differentiation, Anura McDEVll'l — , effect of colcemid, BUdR a.0., Aves PEARCE development & growth, Aves LEVER MODAK UPPULUR1 differentiated cells, nucleus transplantation, Anura ROBINSON differentiation, DNA svnthesis, Anura MALEYVAR DNA-loss, Aves MODAK — , template activity, Aves MODAK effect of lens protein antibodies, Lagomorpha DANDRIEU epithelium, biochemistrv, ultrastructure, Aves FINNEGAN Mclean — , differentiation stability in clonal cell culture, Aves, Rodentia EGUCHI OKADA TAKEICHI eyecup-lens-system, phase specific gene activity, DNA. Vertebrata VAHS fibre cells, proteins controlling RNA synthesis, Artiodacnla ELMER , single strand breaks, Aves BOLLUM MODAK — differentiation in vitro, Aves KAWAKAMI fine structure. Cephalopoda ARNOLD immunochemistry & regulatory mechanisms, Anura, Aves CAMPBELL CLAYTON TRUMAN induction, Aves MODAK — . Urodela JACOBSON — & differentiation, macromolecules. Aves, Rodentia ZWAAN — in vitro, Aves STARRE — , tissue interaction, Aves MIZUNO — , transfilter, Anura HOPERSKAYA inhibition in vitro bv eye extracts, Aves THOMPSON macromolecules, Aves BELL — , svnthesis, in vitro, Aves YOSHIDA Mammalia WOERDEMAN microtubules, Aves PLATIGORSKY morphogenesis & protein svnthesis, control in vitro, Aves BRAVERMAN mutants affecting, Rodentia CAMPBELL CLAYTON 268 proteins, immunology & immunochemistry, Aves, Homo DOORENMAALEN — , synthesis, Aves PIATIGORSKY — , — , localization, Aves SHAMOTO regeneration, autoradiography, Urodela REYER — , causal analysis, Urodela REYER shape, effect of mechanical factors, Aves, Homo, Rodentia KLEIN FACE see Head FALLOPIAN TUBE see Oviduct FAT see Adipose tissues; Lipid(s) FAT BODY see Adipose tissues FATE MAPS see Embryology (experimental) FATTY ACIDS see Lipid(s) FEATHER(S) Aves GOPINATH cell, melanin transfer, Aves KOECKE differentiation, in vitro, Aves KOLLAR down-, hormonal effect in pigmentation, Aves GROENENDIJK effect of prostaglandins, Aves KISCHER electron microscopy & biochemistry, Aves KISCHER germ induction, Aves KOECKE — , regenerating, effect of carcinogenetic agents, Aves KOECKE mesoderm-ectoderm interaction, Aves GOETINCK pattern formation, mechanism, Aves MAUGER — , supernumerary pterylae, Aves SENGEL pigmentation & pattern formation, Aves KUHN pterylae & apteria, regional determination, Aves KIENY pterylosis, Aves FRIANT role of epidermis & dermis in pattern for- mation, Aves NOVEL spinal pterylae, effect of x-rays, Aves MAUGER supernumerary limbs, Aves DHOUAILLY tract-specificity, factors involved, Aves SAUNDERS FECUNDITY see Fertility FERTILITY (& sterility) effect of drugs, Rodentia CHENEY salinity, Gastropoda STYCZYNSKA mature oocyte, Rodentia ZEILMAKER sterility in allotetraploid bisexual strain, Lepidoptera ASTAUROV FERTILIZATION Acari FEIERTAG PIJNACKER acrosomal enzymes, Rodentia POIRIER — reaction, oviducal factors, protein synthesis, Anura RAISMAN activation, Coleoptera HAGET — , changing metabolic states, Anuta MORRILL — , role of ions, Anura MORRILL Amphibia HUMPHRIES antibody effects, Anura BARCH Anura COULSON KATAGIRI artificial, Polychaeta CAZAUX biochemistry, enzymes, Echinoidea VACQUIER chemical factor & jelly coat, Anura BARBIERI OTERINO from oviduct, Anura BUDEGUER WASSERMAN chemo-attractant, biochemistry & biological effects, Hydiozoa MILLER cortical granules, chemistry, Echinoidea, Invertebrata EPEL cytological & experimental study, Lamelli- branchia, Urodela GINSBURG cytology & cytochemistry, Echinoidea, Rodentia SKALKO delayed, effect on karyotype of blastocyst, Rodentia OAKLEY dry mass/water ratio, Echinoidea Echinoidea BEREITER ENDO NODA Echiuioidea NODA effect of gamete age, drugs, & hormones, Artiodactyla POLGE egg membranes, changes, biochemistry, electron microscopy, Echinoidea INOUE egg-sperm interaction, Mammalia TEICHMAN electron microscopy, Annelida, Echinoder- mata, Mammalia FRANKLIN , Aves FAIN STAIN , Homo ZAMBONI , Lagomorpha GONDOS , Lamellibtanchia, Urodela GINSBURG , Polychaeta FALLON — i — , in vitro, Rodentia NODA energy metabolism changes, Echinoidea ASAMI enzyme activation, Echinoidea, Invertebrata EPEL experimental studies, Artiodactyla HANCOCK fertilizin synthesis, oogenesis, Poly- chaeta SCHROEDER Homo KENNEDY in vitro, Carnivora HAMNER , Homo FRANCOEUR , Mammalia CROSS , Rodentia HOPPE KRAICER SHALGI & in vivo, Carnivora, Lagomorpha, Rodentia HUNT , Mammalia MOORE THOMPSON , cytology & endocrinology, Homo, Primates, Rodentia BAKER interaction of sperm & egg substances, Anura BARCH ionic permeability, tracer studies, Echinoidea, Teleostei HORI jelly-coat specificity, immunology, biochemistry, Anura SHAVER Lagomorpha AUSTIN HARPER mechanisms in vitro, Primates, Rodentia FRANKLIN membrane, formation, role of cortical granules, Echinodermata KANE microcinematography, Rodentia KRAICER SHALGI nuclear changes, biochemistry, Echinoidea TERAYAMA — ribosomal vesicles, Echinoidea BROOKBANK Phasmida PIJNACKER physiology, Echinoidea HIRAMOTO ISHIKAWA SUGIYAMA Polychaeta NODA polyspermy, Echinoidea, Invertebrata EPEL — block, Echinodermata PRESLEY pronucleus development & association, effect of meiotic state at fertilization, maternal cytoplasm & supernumerary pronuclei, Echinodermata, Mammalia, Mollusca LONGO proteins, water soluble, Echinoidea, Teleostei HORI quantitative aspects, Lagomorpha ADAMS respiration, Ca, Echinoidea NAKAZAWA Rodentia ANDERSEN AUSTIN GWATKIN KENNEDY MARKERT MODLINSKI role of cumulus granulosa cells, in vitro, Mammalia KRAICER — — macromolecules, Anura NACE sperm-egg interaction, Xiphosura SHOGER testicular factor & jelly coats, Anura CABADA various aspects, electron microscopy, Invertebrata COLWIN FETAL FLUIDS see Embryonic membranes FETAL MEMBRANES see Embryonic mebranes FETUS see also Development (postembryonic, fetal) blood, chemistry after intra-uterine hypoxia, Homo THIERY 269 FETUS (contd.) growth, relation to placenta, Artio- dactyla STEGEMAN isolated, perfusion, Aitiodactyla NIXON relation to placental size & uterine charac- teristics, Mammalia NAAKTGEBOREN size of umbilical cord at birth, Mammalia NAAKTGEBOREN steroids, Edentata BRINCK FIBROBLAST(S) cartilage, bone, lung, kidney, histochemistry, enzymology, electron microscopy, Aitio- dactyla, Axes, Homo, RodeiUia, KNESE DNA content, relation to O^-concentration, Aves MUSY embryonic, culture, Aves GOTZOS identification in vitro, Aves, Homo, Mammalia NIIZIMA paraplacenta, Artiodactyla KUNZEL relation to myoblast, monolayer culture, Aves McKENZIE FIN(S) modification of regenerative response, Teleostei WEIS paired, Teleostei FRANCOIS — , experimental embryology, Teleostei BOUVET regeneration, Pisces KUDOKOTSEV Teleostei ROLLINS tail, rays, regeneration, fine structure, Teleostei KEMP unpaired, Teleostei EMELIANOV FLAGELLA FLUORESCENCE MICROSCOPY see also Immunology autonomic ganglia, adrenergic inhibitory ter- minals, Rodentia CSILLIK KALMAN KNYIHAR oviducal secretions, Anura SHAVER spermatozoa, Lagomorpha HOLSTEIN FLUORINE fluoride, placental transfer, Artiodactyla SHUPE NaF, effect on spicule formation, Echinoidea HEROLD FOLLICLE (egg-) see Ovary FOLLICLE CELLS see Oogenesis FREE-MARTINS see Sexual development GAMETES (& gametogenesis) see also Germ cells; Oogenesis; Spermato- genesis etc. biology & genetics, Diptera, Homo, Lago- morpha, Rodentia BEATTY chromosome behaviour, Anura MARKERT Conchostraca ZAFFAGNINI cytochemistry, Rodentia BRYAN effect of combination of factors, part, drugs & stress, Mammalia STAPLES — — ionizing radiation, Chondrostei, Teleostei PERSOV ZUBOVA electron microscopy, Annelida, Echinodermata, Mammalia FRANKLIN — — , Homo, Lagomorpha GONDOS , fertilization, Polychaeta FALLON endocrinology, Cladocera ZAFFAGNINI gametogenesis, Bryozoa RANZOLI — , Lamellibranchia, Phoronida, Poly- chaeta TUCKER — , Mammalia BISHOP — , Rodentia TARKOWSKI — , Teleostei KOSHELEV — , cytology & cytochemistry, Echinoidea, Rodentia SKALKO — , nucleolar metabolism, Anura WALLACE genetic control of gametogenesis, Diptera LINDSLEY germ line limited DNA, Diptera KUNZ in hybrids, Anura BLACKLER Lagomorpha AUSTIN maturation, Rodentia MARKERT Mvsiacocarida ZAFFAGNINI Rodentia AUSTIN variations in cell structure & function, various techniques KESSEL GANGLION (GANGLIA) autonomic, adrenergic inhibitory terminals, Rodentia CSILLIK KALMAN KNYIHAR cephalic, experimental embryology, Urodela MICHAEL ciliary, anencephaly, Homo DI DINO development, Homo, Marsupialia HUGHES intramural, hindgut, relation to Hirsch- sprung's disease, Aves, Homo, Rodentia PRINS nerve & glial cells, culture, growth & diffe- rentiation, Blattariae LEVI spinal, cells, Rodentia YAMADORI — , effect of increase & decrease of peripheral innervation, Aves MITOLO — , neuroblast, histochemistry & ultra- structure, Aves PANNESE GASTRULA(TION) Anura KHAN cell surface & contacts, Anura JOHNSON in different regions, cell electro- phoresis, Anura BRICK Coleoptera HAGET electric fields, Anura GOODWIN induction, Urodela DOUCET intracellular substances, Teleostei TUMANISHVILI morphogenetic movements, Anura GOODWIN — — , microcinematography, Anura, Urodela BOTERENBROOD HARA neuro-ectoderm, cell periphery, electron micros- copy, Anura DEKKER tryptophan metabolism, tissue specific enzymes, Anura KOSTELLOW GENE(S) see also Genetics; Mutants action during development, biochemistry, Rodentia SMITH — , effect of hormones on puffing, Diptera LAUFER activation, effect on loci structure, Diptera HOLT — , mechanism, Diptera LEENDERS — , nuclear protein, Diptera HELMSING — of alleles, asynchronous, hybrids, Teleostei WHITT — , oogenesis & early embryo, Anura, Echinoidea, Gastropoda DAVIDSON HOUGH activity, control, nuclear proteins, Echinoidea TERMAN — , Echinoidea FROMSON — , effect of chemical stimuli, Lepidop- tera BOSSHARD — , embryo, Lamellibranchia KIDDER — , oogenesis, Urodela LACROIX — , phase specific, in eye, DNA, Vertebrata VAHS — , polytene chromosomes, Diptera ROBERT affecting crossveinlessness, effect on heat shock phenocopying, Diptera MOHLER amplification, connected with differentiation, Urodela LOHMANN — , rRNA, oogenesis, Coleoptera, Diptera SCHAFER causing genital, ophthalmic & urinary anomalies, Rodentia GUMBRECK control, differentiation, allophenic animals, Rodentia MINTZ crooked neck dwarf, morphology & bio- chemistry, Aves WENGER developmental, action in early stages, Anura MANNER differentiation, theoretical study NOTO enzyme controlling, time of activation, Aves HALEY expression & regulation, Rodentia DUERKSEN — correlated with karyotype arrangement, Diptera LAIRD — , early stages, Rodentia DOHERTY — , & cell differentiation, part, isozymes, Teleostei WHITT 270 — , imaginal disc, in vitro, Diptera KURODA — , nuclear transplant embryo, Amtra SUBTELNY — , regulation, Diptera, Lepidoptera IMBERSKI — , role of nuclear proteins KLEINSMITH — , timing, Amtra JOHNSON female-sterility, morphological & physiological effects, Diptera COUNCE function as related to differentiation, salivary gland, Diptera BERENDES — , effect of hormones & ions, Diptera PANKOW — , , Diptera, Rodentia LEZZl genome structure & developmental function, Amtra, Artiodactyla, Axes, Mastigo- phora MELTON homologous, multiplicity, Pisces MARKERT homology, relation to gene activation, LDH, Teleostei WHITT interaction in control of melanin formation, Rodentia PIERRO melanotic tumour, effect on development, Diptera SANG mutant, effect on embryo, Rodentia BENNETT physiology, Diptera GLATZER HESS SCHAFER pleiotropy, Diptera STERN pregastrular, time & place of action, Anura MANNER regulation, multiple forms of tyrosinase, melanocytes, Rodentia QUEVEDO ribosomal, amplification, oocyte, uni- & multi- nucleolate forms, Asteroidea, Echinoidea, Lamellibranchia, Teleostei VINCENT specific, influence on effect of x-irradiation, gametes through pupae, Diptera WURGLER transcription, Diptera LEBHERZ — , control, Anura CRIPPA — , embryo, Ascidiacea DAVENPORT — , influence of cytoplasmic components, Amphibia, Gastropoda GEUSKENS — , nucleolar, salivary gland, Diptera KRIDER GENETICS (developmental) see also specific aspects: Cell heredity; Chromosomes; Genes; Hybrids; Mutants; Nucleus etc. abnormal growth, Mollusca CHENG allophenic animals, gene control, Rodentia MINTZ Amphibia NACE & morphogenesis, Diptera, Lepi- doptera EGELHAAF Ascidiacea MILKMAN Aves PIERRO SOMES blood proteins, Insecta EGELHAAF body shape & size, Anostraca, Aves COCK cell hybrids RUDDLE chromatophore development, Urodela DALTON cleft lip, Rodentia TRASLER color pattern, Aves SEIGER control, chromosomal abnormalities, Aves BLOOM — , cortex & hippocampus, Rodentia DeLONG — of chondrogenesis, Aves ELMER gametogenesis, Diptera LINDSLEY — — hair & enzyme differentiation, Rodentia TRIGG — — hemoglobin switch at metamorphosis, Amtra KAJITA SHUKUYA TORII myogenesis, Diptera WRIGHT protein synthesis, cell differentiation, Vertebrata SCHOLL — , oogenesis, Diptera KING — , pigmentation, eye & testis, Lepidop- tera GOTTLIEB creatine kinase isozymes in differentiation, Teleostei SCHOLL deficient embryos, neurogenesis, Diptera POULSON Diptera BENDER COUNCE KOROCHKIN MILKMAN POULSON dosage compensation, action mechanism, Diptera SMITH early stages, Homo, Mammalia EDWARDS effect of nuclear labelling, Amphibia CHIBON egg structure, Diptera COUNCE enzyme activity, Diptera WRIGHT — appearance, Diptera SULLIVAN — regulation, Diptera KIDDER — variants in vitro, Rodentia RUDDLE enzymes, isozymes, Diptera, Rodentia PANTELOURIS — , — , Lagomorpha SCHLOOT — , — & morphological variation, Diptera THORIG evolution, bursa pharyngea, Homo SLIPKA — , genital organs, Amniota, Homo MATEJKA expression of species specificity in early stages, Urodela NAMUR eye colour, Polychaeta FISCHER — pigments, Lepidoptera EGELHAAF fat body development, Diptera BUTTERWORTH fibroin gene, Lepidoptera BROWN GAGE SUZUKI gametes, Diptera, Homo, Lagomorpha, Rodentia BEATTY genetic regulation, male germ cells, Diptera GLATZER HESS SCHAFER genotypes, different, interaction in chimeras, Rodentia GARDNER — , influence on developmental rate, early embryo in vitro, Rodentia McLAREN gynogenesis, Ascidiacea ORTOLANI — , Urodela FERRIER — , chromosomal regulation by cold, Amphibia ROSTAND — , cytology, Teleostei KOBAYASI — , diploid, by fusion of egg nucleus & polar body, Anura RICHARDS — , — , — heat treatment & chemical treat- ment of sperm, Chondrostei VASSETZKY — , — , — inhibition of haploid egg cleavage, Anura RICHARDS — , triploidy, Teleostei RASCH hair growth phases, mutants study, Rodentia CHASE haploid embryo cell lines, nuclear transfer, Anura FREED MEZGER heredity, Turbellaria BENAZZI Heteroptera LAWRENCE heterosis & early development, Rodentia KRZANOWSKA Homo TESTA Hymenoptera WOYKE WURMBACH imaginal disc, Diptera SANDERS , wing, Diptera GARCIA information, neural differentiation, Urodela SALA inherited abnormalities, Aves EDE lactate dehydrogenase isozymes, Teleostei WHITT linked genes, gene expression, Diptera LAIRD macromolecular synthesis, Echinoidea BAKER male germ cell, differentiation, Diptera KIEFER maternal effect, eye colour, mutants, Polychaeta FISCHER mutants, gynogenesis, Anura RICHARDS neoplasm, Diptera GATEFF nervous system, Nematoda BRENNER neural crest, Anura BROWDER nondisjunction, Homo BHARGAVA oogenesis, Diptera BROWN parthenogenesis, artificial, Lepidoptera ASTAUROV paternal genes coding for antigens, activation, Echinoidea O'DELL pattern formation, Diptera KROEGER STERN — , white-spotting, Rodentia MAYER phylogenesis, Ectoprocta, Endoprocta NIELSEN physiology, Diptera BENDER pigment patterns, Urodela DUNCAN Pisces MARKERT position effect variegation, Diptera BARR postembryonic development, Diptera, Lepidoptera LEGAY proliferation, control, Rodentia KONYUKHOV SAZHINA protein differentiation, Urodela BEETSCHEN GASSER — synthesis control, Vertebrata WHITT quantitative characters, Diptera SCHOUTEN radiation, Diptera SHIOMI YOSHIKAWA regulation, enzymes, part, aldehyde oxidase, Diptera DICKINSON — mechanism of development, Rodentia GATES in cellular differentiation, isoamylases, Diptera DOANE 271 GENETICS (contd.) relation to spermatogenesis, Diptera ribosomes, origin & assembly, Diptera Rodentia TOKUYASU STEFFENSON CSABA GREEN GRUNEBERG HUMMEL MOSER REVESZ STEVENS WAELSCH sex determination, Diptera NOTHIGER , triploid intersexes, Diptera POSTLETHWAIT — ratio disturbances, maternal inheritance, Diptera POULSON skeletal abnormalities, biochemistry, Rodentia MALININA PASCHIN — variation in large & small strains, Rodentia TRUSLOVE somatic mutations, x-ray induced, wing scales, Lepidoptera PENTZ suppression & enzyme activity, lozenge mutant, Diptera SMITH tagged strains for developmental biology, Lagomorpha BEATTY Teleostei FOWLER OJIMA thyroxine sensitivity of metamorphosis, Urodela TOMPKINS transcription & regulation of genome in embryogenesis, biochemistry, Gastro- poda COLLIER translocations, x-autosome, variegation, Rodentia CASPARI tumors, malignant, in children, Homo CASSIDY Turbellaria BENAZZI vertebral column, Rodentia THEILER x-chromosome markers, transfer of embryonic cells, Rodentia GARDNER GENITAL TRACT see also Reproductive system; Urogenital system asymmetry, organ culture, Aves LUTZ effect of testicular cell tumor, Rodentia POURREAU epithelial differentiation, regulative mechanisms, Rodentia FORSBERG female cytochemistry, Mammalia BULMER — , enzymes, Mammalia THIERY glands, histochemistry, Gastropoda BOLOGNANI Lacertilia, Ophidia RAYNAUD male, effect of anti androgens, Rodentia FORSBERG organ culture of primordia, Lacertilia, Ophidia RAYNAUD reaction to hormones in vitro, Mammalia GLENISTER seminal vesicles & prostate, effect of hor- mones, Rodentia SPAZIANI vulva, growth, Homo LASSAU GENITALIA see Reproductive system GERM CELLS (general) see also Gametes Anura Aves Bidder's organ, Anura GIPOULOUX DUBOIS GHIRARDELLI RADO chromosomes, Nematoda SCHREIBER comparative history, Mammalia DUKE cytochemistry, electron microscopy, auto- radiography, Rodentia WEAKLY cytodifferentiation GONZALES descriptive & experimental study, Reptilia HUBERT differentiation, Ascidiacea SABBADIN — , effect of antibiotics, ultrastructure, Orthoptera TAHMISIAN — , metabolic control, Mammalia BISHOP DNA & nuclear size, Anura LAVALLE effect of x-rays, Primates, Rodentia BAKER electron microscopy, Anura CAMBAR , Homo WARTENBERG , Invertebrata, Vettebrata AFZELIUS , Reptilia HUBERT female, ultrastructure, Rodentia IOANNOU germ plasm, Anura ZUST grafts, gametogenesis & nucleolus repression, Anura BLACKLER in parthenogenetic & bisexual cycles, Diptera PANELIUS male, differentiation, genetic control, Diptera KIEFER — , electron microscopy & biochemistry, Diptera KIEFER normal & irradiated, fine structure, Primates, Rodentia FRANCHI nuclear size, Nematoda REZENDE nuclei, composition, biochemistry & changes after fertilization, Echinoidea TERAYAMA nucleoli, Amphibia NARDI oogonia, fine structure & metabolism, Primates, Rodentia BAKER origin, Malacostraca HALEY — in asexual reproduction, Ascidiacea IZZARD physiology & biochemistry, Mammalia NORMAN radiation genetics, Diptera SHIOMI YOSHIKAWA regeneration, Turbellaria DI MARCOTULLIO Turbellaria GHIRARDELLI uridine & thymidine incorporation, Aves CALLEBAUT x-ray destruction, Anura DI GRANDE GERM CELLS (primordial) Anura Chaetognatha differentiation, Thysanuta general study, in vitro, Urodela germinal cytoplasm, cytochemistry microscopy, Anura histochemistry, Aves, Rodentia male, genetic regulation, Diptera migration, Anura — from grafted germinal crescent, origin, Aves, Teleostei — & fate, Aves, Rodentia migration, Coleoptera polar granules, Diptera , experimental study, Diptera , general study, Diptera pole cells, re-entry, effect of UV, Diptera radiosensitivity, Teleostei relations with somatic cells, Aves TANABE GHIRARDELLI KLAG CAPURON , electron CZOLOWSKA DENUCE GLATZER HESS SCHAFER SUBTELNY Aves SHOGER PALA OZDZENSKI ROGULSKA HAGET MAHOWALD GRAZIOSI ROTH YAJIMA HYODO REYNAUD GERM LAYERS see Embryology (experimental); Embryology (general & descriptive) see also specific derivatives GERMINAL VESICLE see Nucleus GESTATION see Pregnancy GILL(S) mucous cells, Teleostei PORCELLI organ culture, Urodela WILDE Teleostei TAKITA GLAND(S) (endocrine) see specific endocrine glands; Endocrine organs GLAND(S) (exocrine) see also specific glands; specific organs cement, endoplasmic reticulum, Anura JACOB dermal, ultrastructure & histochemistry, Hemiptera, Lepidoptera LAI-FOOK development, synthesis & transport of secretions, Ophidia KOCHVA digestive, Anura ALBERT Harderian, histochemistry & ultrastructure, Artiodactyla, Rodentia McCAFFERTY hatching, morphology, biochemistry, Anura, Teleostei DENUCE lacrimal, normal & abnormal, Homo McCAFFERTY mammary, Rodentia KRATOCHWIL — i differentiation in vitro, role of DNA synthesis & cell division, Rodentia STOCKDALE 272 — , effect of hormones & carcinogens, pre- & postnatal treatment, Rodentia HOSHINO — , , in vitro, Rodentia RIVERA — , PTH, Rodentia DDK — , hormonal control, Homo, Rodentia DURAN — , organ culture, Lagomorpha, Rodentia GOMOT PROPPER — , proteins, isozymes, regulation, Rodentia WILLIAMS — , regeneration after transplantation, Rodentia HOSHINO — , tissue culture, Homo, Rodentia KATO — , transplantation, Lagomorpha, Rodentia GOMOT PROPPER parotid, Homo POSINOVEC — , epithelial-mesenchymal interaction, bio- chemical differentiation, effect of exogenous agents on secretion, synthesis & expulsion of proteins, Rodentia GORDON — , experimental study, biochemistry, electron microscopy, Rodentia REDMAN — , functional differentiation, subcellular aspects, Rodentia BLUEMINK salivary, Cyclostomata BOLOGNANI — , differentiation, larval, Diptera DANIELI — , effect of ecdysone, Diptera POELS — , epithelium, induction & morphogenesis, Rodentia BERNFIELD — , gene function & differentiation, Diptera BERENDES — , histochemistry, electron microscopy, Rodentia REDMAN — , morphogenetic & growth control in vitro, Rodentia LAWSON — , nucleolus, ultrastructure & function, Diptera JACOB — , regeneration after transplantation, Rodentia HOSHINO — , RNA & protein, Diptera ELLGAARD — , — i metabolism, hormonal control, Diptera ALONSO — , steroid hormone binding, Diptera EMMERICH — , vascularization, Homo KLEISS shell, ultrastructure, Anostraca DE MAEYER silk, control of DNA synthesis, Lepidop- tera DE TURENNE — , cytology & physiology, Lepidoptera DAILLIE PRUDHOMME — , part, fibroin, biochemistry & genetics, Lepidoptera BROWN . GAGE SUZUKI submandibular, part, duct differentiation, Rodentia MATTHEWS sub-maxillary, primordium, organ culture, Rodentia RAYNAUD supraorbital, Aves HERBERT uropygial, Aves BRIDE GOMOT GLUCOSE see Carbohydrate(s) GLYCOGEN see Carbohydrate(s) GONAD(S) see also Ovary; Testis agametic, cytology, Diptera LAUGE apparition of As-3|3-hydroxy steroid dehydro- genase, Rodentia LOMBARD Ascidiacea GEORGES Cetacea HARRISON correlation with hypophysis & adrenals, Aves WOODS development, Carnivora, Lagomorpha, Rodentia HUNT differentiation, Gastropoda GOMOT GUYARD — , ultrastructure, Aves AMANUMA effect of thermal stress, Diptera LAUGE electron microscopy, Homo WARTENBERG experimental embryology, Anura VANNINI germinal ridge, ultrastructure, Rodentia SOLTYNSKA 3H thymidine incorporation after irradiation & steroid treatment, Aves GASC hermaphroditism, Teleostei LISSIA histochemistry, Artiodactyla PAWLOWSKA — , Aves LIWSKA MEYER — , Vertebrata BIELANSKA hormones, histochemistry, Aves WOODS — , role in sex differentiation, Aves, Rodentia NOUMURA hybrids, functional development, Urodela MANCINO immunology, Lagomorpha, Rodentia ELGER in vitro, differentiation & intersexuality, Aves WOLFF interactions during development in vitro, Aves FRITTS — ■ with hypophysis & pineal gland, in vitro, Rodentia LOMBARD interstitial cells, ultrastructure, Aves, Rodentia SCHEIB larval & adult, in vitro, Anura GARDENGHI ZACCANTI — , Crustacea PA YEN — , organ culture, Coleoptera LENDER organ culture, Anura FOOTE , endocrine activity, Homo, Rodentia ZAAYER Pinnipedia HARRISON relation between somatic & germinal tissue, Rodentia MYSTKOWSKA — to endocrine organs & oviduct, Aves GROENENDIJK reproduction, Aves KAMAR ripening time in male & female, Lepidoptera SCALI somatic & germinal tissue, differentiation, Aves, Rodentia OZDZENSKI ROGULSKA sterile, Anura DI GRANDE steroid & sterol synthesis, in vitro, effect of HCG, Aves CEDARD GUICHARD Teleostei ARRU GRADIENT(S) see also Symmetry animal & vegetative, biochemistry, Echinoidea KINOSHITA animalization, vegetalization, chemical agents, Arachnoidea EHN animalizing & vegetalizing agents, Echinoidea LALLIER dorsoventral, origin in egg, cytochemistry, cinematography, electron microscopy, Amphibia BLUEMINK HARA NIEUWKOOP UBBELS double, morphogenes, Echinoidea IMMERS egg, Echinoidea HORSTADIUS epidermis, Heteroptera LAWRENCE limb regeneration, Blattariae BOHN mesoderm, Urodela BOTERENBROOD NIEUWKOOP metabolic, morphogenesis, Echinodermata, Hydrozoa BELOUSSOV organogenesis, lateral line system, Chondrostei DRAGOMIROV polarization, effect of artificial weightlessness, Anura, Nematoda TEUCHERT tail regeneration, Lacertilia BRYANT GRAFT REACTIONS see Immunology; Transplantation GRAFTING see Transplantation GRANULOSA CELLS see Ovary GROWTH see also Growth factors allometric, Rodentia SCHUMACHER — , eye, Anura JONGH biochemical effects of growth-limiting culture medium, Aves HICKEY KLEIN cell kinetics, Hydrozoa CAMPBELL compensatory hypertrophy, immunological mechanism, Rodentia BABAYEVA , kidney, Rodentia GOSS — , kidney, Artiodactyla, Lagomorpha BERTON — , regulation, Rodentia HOFMAN MULLER control, functional hypertrophy, kidney, Mammalia ARGYRIS 273 GROWTH (contd.) — , liver St hepatoma. Rodentia BADRAN ECH.W1 I 1 ANOS RESTELLI — , — role of plasma proteins. Mammalia ARGYRIS — , salivary gland, in vino, Rodentia LAVVSON — . sympathetic nervous system LEVI Decapoda \ I RNET effect of artificial sweetners, Aves VENEZIANO — — endocrine glands. KAMAR steroids, Anura, Aves \\ URMBACH — — teratogens, Anura. Aves WURMBACH thyroid hormone. Anura, Aves WURMBACH embryo, Cladocera BETTAN1N DELLA CROCE — , Teleostei FRANCOIS — , hormonal & dietary control. Aves BETZ explanted embryo, protein metabolism, Aves HICKEY KLEIN fetal, relation to placenta, Artio- dactyla STEGEMAN general. Homo PINEAU larval, endocrine control, Decapoda HUBSCHMAN — . food chances. Cyclostomata BAXTER limbs & vertebral column. Homo DUN Al liver, induction by drugs, Rodentia ARGYRIS mitotic, regulation, lnsecta POHLEY models MITOLO morphogenetic forces. Anura, Aves WURMBACH nucleic acid-protein ratios, Rodentia BRYAN nucleoprotein metabolism, relation to ultra- structure. Rodentia KLE1NFELD organs, effect of isogenic subcellular tissue fractions, Rodentia STERN pedicel & stolon, mechanics & regulation, H<.J?ozoa WYTTENBACH physiology. Diptera ROCKSTEIN — & biochemistrv, Diptera, Lepidop- tera SHAPPIRIO postembryonic. Carnivore HUBER postnatal, effect of hormones & antibodies. Rodentia CHAMBFRl M\ rate, early embryonis stages, Aves BAKER — , spinal cord & vertebral column. Homo BARSON reeulation. inner organs, Lagomorpha, Rodentia SIDOROYA retardation by neuromuscular blocking agents. Rodentia SHORO skull. Artiodactyla, Carnivora HUBER spleen, transfilter stimulation bv adult spleen, .-1 ves MUN stimulation bv ascites tumour. Mammalia ARGYRIS visual system. Anura HOLLYFIELD GROWTH FACTORS from submaxillary gland, Rodentia YARON NGF. effect on early development, Aves BJERRE — , nervous system, Amphibia, Teleostei WE IS GUANOPHORES aomatophore(s) GYNOGENESIS see Genetics HAIR(S) differentiation, genetic control, Rodentia TRIGG effect of prostaglandins. Rodentia KISCHER electron microscopv & biochemistrv, Rodentia KISCHER follicle & associated glands, Artiodactyla LYNE — , development & regeneration, Artio- dactyla CHASE — , regenerating, effect of carcinoeenetic agents, Rodentia KOECKF growth, in wound healing. Mammalia ARGYRIS — phases, mutants study, Rodentia CHASE Marsupialia LYNE tissue interactions, Rodentia HORNBY vibrissae. differentiation, in vitro, Rodentia KOLLAR HAPLOIDY genetic control. Aves BLOOM haploid & diploid tissues, electron micros- copv, Anura FOX HAMILTON — embryo cell lines, genetics, nuclear transfer, Anura — syndrome, Anura racial hybrids, Anura radiosensitivity. Anura HATCHING enzymes, Amphibia — , Anura mechanisms, Invertebrata FREED MEZGER HAMILTON MOORE HAMILTON SALTHE KATAGIRI DAVIS HEAD bilateral symmetry, determination, Gastropoda VERDONK cell-lineage, Gastropoda VERDONK cephalogenesis, larval & imaginal, experimen- tal study, Diptera SCHOELLER experimental embryology, Phasmida ROGUEDA face & cranial base, fetus, anthropology & anatomy, Homo KVINNSLAND — , effect of hypoxia. Mammalia BURDI — , experimental study, Rodentia LARSSON — , & pathogenesis. Mammalia STEFFEK — , part, derivatives of neural crest. Aves, Homo, Rodentia, Urodela JOHNSTON functional morphology, larval stages & meta- morphosis, Anura JONGH growth patterns, Homo BURDI malformations, experimental, Rodentia KNUDSEN nose, morphogenesis. Homo, .Rodentia WILDE oro-facial malformations caused by pyrime- thamine. Mammalia COLEMAN role of prechordal plate, Aves, Homo, Rodentia KRAUS sexual dimorphism. Homo BURDI transplanted in tandem, relation central nervous svsiem-doubled sense organs, Urodela BRANDLE HEART (& great vessels) & aortic arches, circulation, Aves PEXIEDER anomalies, part, hypoplasia, Mammalia WENSING aortic arches, experimental morphology, Aves PEXIEDER auxiliary, graft, Rodentia GOSS cell communication, laser alteration of mito- chondria, Rodentia BERN'S — death. A PEXIEDER — junctions & myofibrils. Aves FISCHMAN coronary arteries, Aves. Rodentia DBALY , morphology, teratology, Aves. Homo KLEIN determination & differentiation, temporal & spatial, Urodela DUNCAN development, induction, in vitro, Urodela FULLILOYE differentiation, isolation & role of intracellular materials, Urodela DUNCAN ductus arteriosus, closure & patency, expe- rimental study, Artiodactyla, Lagomorpha, Rodentia HORN BL AD effect of aminoguanidine, Aves WATTERSON electrolyte metabolism, histochemistry, electron microscopy, Aves KLEIN electron microscopv, Lagomorpha, Rodentia CHALLICE electrophvsioloev, Rodentia, Urodela BERNARD GARGOUIL — & electron microscopv, larval & adult, Urodela GROS experimental embryology, Urodela AMANO — teratogenesis, Aves, Rodentia LAANE LOS ROEST forming area, blastoderm, effect of embryonic heart RNA. Aves NOTO general studv, Aves, Rodentia LAANE LOS ROEST , Teleostei TAKITA histology, Anura MACDONALD — A electron microscopy, Rodentia GARGOUIL induction, endodermal factor, Urodela JACOBSON innervation, Rodentia SCHIEBLER — , cholinesterase & mono-amine, Homo, Mammalia NAVARATNAM maintenance of differentiation in vitro, Aves TAYLOR malformations. Homo ROBERTSON — , pathology, Artiodactyla NIE 274 — , teratogenesis, part, trypan blue, Aves STEPHAN morphogenesis & teratogenesis, Aves GILANI — , tissue dynamics, Aves PEXIEDER morphology & teratology, Homo KLEIN morphometry, Aves, Rodentia DBALY muscle cells, conducting system & innervation, electron microscopy, Aves NAKAMURA — , in vitro, Aves DYER myocardial cell interactions in vitro, Aves GORDON myocardium, regeneration, Mammalia AKHABADZE MALIOVANOVA POLEZHAEV — , regeneration, biochemistry, Lago- morpha SADOKOVA normal & abnormal development, Aves, Homo, Mammalia KREDIET organ culture, Anura BRIDE GOMOT origin of asymmetry, blastoderm in vitro, Aves LEPORI pacemaker, initiation of heartbeat, Aves DeHAAN primordium, effect of stimulants & depres- sants, in vitro, Aves BUTROS — , migration, Aves FORET — , morphogenetic movements & cell migration, Aves DeHAAN teratogenesis, Rodentia MONIE — , chemical, Rodentia ADAMS MARKWALD vascularization, Rodentia SCHIEBLER ventricular wall, part, conductory system & blood supply, Artiodactyla, Homo PATTEN weight, Cetacea, Mammalia SPENCER HEMATOPOIESIS blood cells, radio-isotopes, Aves VAN ALTEN comparative, Homo, Mammalia MAZHUGA effect of antimitotic agents, Aves BODELET Friend virus on relation between stem cells & stroma, Rodentia McGARRY phytohemagglutinin, Lago - morpha HOSTETLER embryonic, Aves SALVATORELLI — , lactic dehydrogenases, Aves BLANCHET eosinophils, humoral control, Rodentia McGARRY erythrocyte, anaemic animals, Vrodela GRASSO — stasis caused by ultrasound, mechanism & effect, Aves DYSON erythroid cells, Homo, Lagomorpha, Rodentia SCHULMAN , tumor cell, Rodentia FURUSAWA erythropoiesis, anaemia, Aves CORNUZ MODAK SCHERRER — , control, Homo, Lagomorpha, Rodentia SCHULMAN — , effect of cobalt salts, Lagomorpha BIAGIONI — , general study, Rodentia COLE — , histones, Aves MacRAE — , Holothuroidea, Phoronidea SCHULMAN — , in vitro, Aves INGRAM — , metamorphosis, immunology, Anura INGRAM — , neonatal, Lagomorpha LIOTTI ROSI GIOVANNINI liver, Lagomorpha LEESON — , Rodentia JACQUOT NAGEL — , electron microscopy, Homo, Rodentia JONES metamorphosis, Anura SALVATORELLI morphology & histochemistry, Homo, Mammalia ACKERMAN radiation effects, immunochemistry, Rodentia TAMANOI supporting tissue, histochemistry, electron microscopy, Aves, Mammalia HOSTETLER Urodela DEPARIS HEMOGLOBIN see Blood HEMOLYMPH antigens, Hymenoptera LENSKY hemocytes during moult cycle, Lepidop- tera LAI-FOOK — , maturation & biosynthetic capacities, Crustacea KERR lipovitellins, Crustacea KERR proteins, genetics & physiology, Insecta EGELHAAF — , metamorphosis, Hymenoptera LENSKY — , Phasmida KOCH HENSEN'S NODE see Primitive streak HEREDITY see Genetics HERMAPHRODITISM see Sexual development HETEROPLOIDY embryology, Aves BUSS supernumerary pronuclei, Lagomorpha, Lamellibranchia, Rodentia LONGO HETEROSIS see Genetics HISTOCHEMISTRY (& cytochemistry) see also specific substances; Autoradiography; Electron microscopy adrenal cortex, culture, Rodentia ROOS — medulla, cells, Rodentia WOOD , — containing epinephrine & nor-, Rodentia VERHOFSTAD , comparative study, Anura, Homo, Rodentia KMIEC — transient zone, Rodentia CANNON SUCHESTON allantois & urinary bladder, Chelonia GERZELI autonomic nervous system, peripheral, in vitro, Aves, Rodentia PRESLEY basic proteins, oogenesis & early development, Echinoidea BACKSTROM biogenic amines, Rodentia FRASCHINI MANFREDI & glycogen, effect of parathion, Aves MEINIEL bone, Rodentia GAILLARD — , regeneration, Rodentia MAKINEN RAEKALLIO brain & retina, Mammalia LIERSE — , mapping, Mammalia KOZIK cells undergoing morphogenetic movement, Anura BAKER cerebellum, Carnivora PHILLIS — , cortex, Rodentia CSILLIK KASA chemoreceptor, Lagomorpha, Rodentia DRUKKER chromosome puffs, Diptera RASCH Coleoptera WEGLARSKA comb, Aves LAWRENCE connective & supporting tissue, Artiodactyla, Aves, Homo, Rodentia KNESE cortex cerebri, Rodentia KAUFMANN cytochemistry, regeneration blastema, Turbellaria BETCHAKU decidua parietalis & capsularis, Homo VARMA de- & redifferentiation, denervatcd limb, Urodela HE ARSON dermal gland, Hemiptera, Lepidoptera LAI-FOOK differentiation, effect of various factors, Urodela LEHMANN digestive organs, Amphibia, Mollusca KOSHIDA dorsoventral gradient, origin in egg, Amphibia UBBELS early embryo, Gastropoda SATHANANTHAN — stages, Gastropoda CLEMENT egg, Homo, Rodentia MARTINEK — , Polychaeta PATRICOLO — cortex, Cephalopoda ARNOLD — implantation, Mammalia JIRSOVA — shell formation, P lathy helminthes GERZELI — transport, Mammalia JIRSOVA embryo, Amphibia KATO — , Diptera STARRE enchondral, osteogenesis, contribution of cells & matrix, Lagomorpha, Rodentia MAZHUGA endocrine glands, Lacettilia RAYNAUD , Teleostei OLIVEREAU endo- & ectomesenchyme, myoblasts, Urodela FINNEGAN endometrium & embryonic membranes, Homo BAVEJA VARMA 275 HISTOCHEMISTRY (contd.) enzymes, lung & liver, Anura, Rodentia BOCZKOWSKA epiboly, Teleostei BETCHAKU V " TRINKAUS epithclial-mesenchymal interactions, limb, Anura, Urotlela STURDEE TARIN esterases, non-specific, egg & larva, Anura LOBO excretory system, Vertebrata GIBLEY eye, Axes MEYER — lens inductors, Aves STARRE fat body, Coleoptera LABOUR female genital tract, Mammalia BULMER fertilization & early stages, Lagomorpha, Rodentia DENKER fetal skin, Homo CERIMELE follicle ripening, Homo, Rodentia LUDWIG functional development, kidneys, liver, pancreas, Aves DOSSEL gametogenesis, fertilization & cleavage, Echinoidea, Rodentia SKALKO Gastropoda NOWAKOWNA SEMBRAT genital tract, glands, Gastropoda BOLOGNANI germ cells, Rodentia WEAKLY , primordial, Aves, Rodentia DENUCE germinal cytoplasm, Anura CZOLOWSKA elia cells, Mammalia KOZIK B MULAREK gonad, Artiodactyla PAWLOWSKA Ave* LIWSKA ' MEYER — , Vertebrata BIELANSKA Harderian gland, Artiodactyla, _AOT™.rv Rodentia McCAFFERTY heart, part, teratogenesis, Aves, Rodentia LAANE ROEST heterogeneity of egg & early stages, Amphibia UBBELS histophotometry, DNA, central nervous system, Rodentia FRASCHINI MANFREDI imaginal discs differentiation, Diptera SPREY inorganic salts in lung & liver, compared to level in blood plasma, Anura, Rodentia WYSOCKA integument of foot & mantle, Mollusca BOLOGNANI intestine, cell organelles, Rodentia VOLLRATH lacrimal gland, Homo McCAFFERTY larva, pupa, adult, Hymenoptera JOSHI limb bud, Aves NAVAGIRI , Lacettilia RAYNAUD liver, neonatal, Rodentia MALET POURHADI TURCHINI lysosomes & hormones, cell death, meta- morphosis, Anura, Hemiptera GOLDSMITH mast cells, Rodentia SEFTALIOGLU mesonephros, Aves AMADO metanephros, Artiodactyla BYLINA — , Aves DUBEY QUADEER mitotic spindle, Diptera MATUSZEWSKI morphogenesis, Aves GOFF — , in vivo & in vitro, Aves DOMINICI mucopolysaccharides, egg & larva, Teleostei LOBO muscle, Anura, Rodentia MESSAGE neural induction, Anura TARIN neuroblast, olfactory placode, Aves ROBECCHI neurosecretory cells, Orthoptera EWEN Nissl bodies, Aves, Lagomorpha DREYER nucleolus, oogenesis, Polychaeta STAGNI nurse eggs, Gastropoda HADFIELD oogenesis, Cladocera ZAFFAGNINI — , Echinoidea KOBAYASHI — , lnsecta KURIHARA — , Turbellatia GREMIGNI — , mutants affecting oogenesis, Diptera HODGETTS — , nucleus, Aves, Teleostei GAGINSKAYA — , spermatogenesis, Hydroidea STAGNI — , spermatogenesis, Tunicata, Verte- brata GURAYA ovarium, part, follicle cells, Rodentia MARTINEK ovulation, Rodentia ANDERSON palate, normal & cleft, in vitro, Homo, Rodentia POURTOIS phosphatase, alkaline, egg & larva, Teleostei LOBO phospholipids, egg & larva, Anura LOBO photoreceptors, Mollusca KOSHIDA placenta, Artiodactyla, Homo HERNANDEZ _ Homo KAUFMANN RIMNICEANU THIERY — , Homo, Mammalia VACEK — , Rodentia BULMER — , effect of teratogens, Rodentia KERN IS — , pathology, Homo IVEMARK pre- & early post-implantation, P Rodentia DAMJANOV SKREB SOLTER prechordal plate, Aves, Homo, Rodentia KRAUS primary induction, Urodela HAYASHI primitive streak, Anura, Aves, Rodentia VACEK quantitative, nucleic acids & proteins, induction & differentiation, Vertebrata VAHS regenerating motor nerves, Teleostei, Urodela J££5£ reinnervating muscle, Teleostei, Urodela MARK renal carcinoma, differentiating, Rodentia GIBLEY reproductive structures, Diptera LEOPOLD salivary glands, Rodentia REDMAN Selachii FORD shell secretion, Gastropoda, Lamelli- branchia TIMMERMANS skin, epithelial-mesenchymal interactions, Aves, Mammalia RITSCHARD spermatozoa, apyrene, Lepidop- tera FRIEDLANDER spinal cord, Anura t^tvJ^c^xt starving animals, Turbellaria PEDERSEN subcommissural organ, Homo, TT,„TT Mammalia LEONIENI surface coat, early stages, Amphibia DE SILVA syndactylism, experimental, Rodentia MILAIRE tail primordium, Anura, Aves, Rodentia VACEK taste buds, Homo SEVCENKO Thvsanura KOSCIELSKI tissue primordia, cell interactions, Aves LAVARACK tooth germ, Urodela rS?}™- vegetative ground plexus, Rodentia CSILLIK vitellogenesis, Coleoptera AGGARWAL wounds, cutaneous, Rodentia SCHMIDT yolk formation, Aves BELLAIRS 3 ENGLAND — origin, Gastropoda HADFIELD — sac syncytium, giant nuclei, Teleostei BACHOP HISTONE(S) chromosomal, synthesis regulation, Echinoidea LINDSAY effect on early differentiation of oocyte, Anura ^99; erythropoiesis, Aves MacRAE nervous system, Artiodactyla, Primates KORNGUTH nuclear, embryonic development, Amphibia TOROK — , regeneration, Amphibia, Turbellaria TOROK oocyte & embryo, Echinoidea COGNETTI ovary, Artiodactyla *^5 '' SINGER polytene chromosomes, Diptera ROBERT relation with RNA, hormones & protein, neural crest in vitro, Anura ANDREW GABIE spermatogenesis, Teleostei AY'X1, MOAV spermiogenesis, Diptera KASINSKY synthesis, cleavage, Anura „J?,YSS KASINSK.Y — on ribosomes, early stages, Echinoidea MOAV _, patterns, Diptera KASINSKY HISTORY OF EMBRYOLOGY during 1600-1900 BODEMER experimental embryology & cyto- IICCD j0gy FANKHAUStK general Invertebrata HOMEOSIS see Mutants see also Regeneration (traumatic) KLEISS HELFENBEIN 276 HOMOGENATES see Tissue(s) HOMOLOGOUS INHIBITION see TissueCs) HORMONE(S) see also specific hormones; Neurotransmitters; Steroids ACTH, effect on adrenal glands, Rodentia DOMAC action in larval development & metamorphosis, Decapoda HUBSCHMAN — mechanism on genital system, Aves, Rodentia NOUMURA & analogues, action on development, Arthro- poda MADHAVAN brain, effect on oogenesis, Polychaeta DHAINAUT — hormone, purification, Insecta ISHIZAKI Ca transport in shell gland, Aves HEERSCHE control of development, Insecta AGGARWAL imaginal maturation, Diptera, Hymenoptera GRAY — — mammary gland, Homo, Rodentia DURAN metamorphosis, Anura ETKIN , Diptera POSTLETHWAIT , cellular aspects, Lepi- doptera OBERLANDER placenta, in vitro. Homo BAKER regeneration, Polychaeta HOFMANN RNA metabolism in salivary gland, Diptera ALONSO dependent cell culture, Mammalia SATO ecdysone & juvenile, effect on non-insects, Arthropoda SCHNEIDERMAN — , biosynthesis, molt cycle, Decapoda SPAZIANI — , correlation of functional & structural effects, Diptera POELS — , effect on imaginal disc, Diptera VIJVERBERG — , neuroglia at pupation, Lepidopteta PIPA — , nucleic acid & protein synthesis, Blattariae, Diptera SHAAYA — , role in protein & RNA synthesis, Diptera SEKERIS effect of fertilizin synthesis, oogenesis, Polychaeta SCHROEDER — on ATP-ase system, brain, Aves STASTNY binucleated erythrocytes, Aves BUSS blastocyst metabolism, Rodentia MARCUS bone, Anura, Aves McWHINNIE , Rodentia GAILLARD in vivo & in vitro, Aves DAIMON brain, Rodentia ALTMAN — — — specific proteins, Aves FRIEDMAN — — carbohydrate metabolism, part, meta- morphosis, Amphibia FRYE cell differentiation in uterus, Rodentia KLEINFELD renewal in skin, Lacertilia, Ophidia MADERSON — — central nervous system, Rodentia EAYRS comb, Aves LAWRENCE decidualization, Mammalia MARCUS — — development, Rodentia KRATOCHWIL differentiation, electron microscopy, autoradiography, in vitro, Lepidoptera BERRY disruption of morphogenesis, Diptera ADAMS duodenum, spleen & retina differentiation, Aves BETZ — — egg maturation in vitro, Rodentia TSAFRIRI embryonic growth, Aves BETZ enzyme synthesis, tissue differentiation, & regression, Amphibia, Aves BOELL feather pigmentation, Aves GROENENDIJK — — fertilization & early development, Artiodactyla POLGE fetal development, Rodentia TUCHMANN fetus & postnatal growth, Rodentia CHAMBERLAIN flight muscle, Coleoptera KORT liver cell differentiation in vitro, Rodentia CROIZAT — — mammary glands, Rodentia HOSHINO , in vitro, Rodentia RIVERA — — melanophore, Rodentia SPAZIANI behaviour, Anura BYTINSKI metamorphosis, Coleoptera, Diptera SCHMIALEK — — nucleic acid & protein synthesis, blastocyst, Rodentia PRASAD — — oogenesis & egg laying, Orthoptera PENER & ovulation, Anura HANAOKA , ovarium & Bidder's organ, Anura GARDENGHI ZACCANTI organ cultures, Anura TATA ovary maturation, Diptera ADAMS oviduct, Aves SCHIMKE postembryonic development, Diptera BERENDES pre- & postimplantation stages, Lago- morpha, Rodentia BEIER PETRY protein synthesis & transport, oogenesis, Insecta WYATT , ribosomes, RNA, Lepidoptera WYATT puffing, Diptera LAUFER sex determination, Aves VAN DETH skin, Anura, Rodentia HANKE — — vitellogenic proteins, Coleoptera KORT equilibrium, effect on metabolism, Insecta PFLUGFELDER erythropoietin, effect on hemoglobin synthesis, Rodentia MALPOIX fetus, Artiodactyla NIXON FSH, action on Leydig cell, changes during development, Rodentia LOMBARD — , morphogenetic effects, Aves LAKSHMI SHERBET gonadal, role in sex differentiation, Aves, Rodentia NOUMURA gonadotropins, Mammalia SCHUETZ — , effect on oogenesis, Teleostei SAKUN — , sexual development, Lacertilia, Ophidia RAYNAUD — , steroid synthesis & glycogenolysis, perfused placenta, Homo CEDARD — , placenta, Homo GUICHARD growth, Hemiptera WIGGLESWORTH — , effect on chondrocyte differentiation in vitro, Aves SOLURSH HCG, effect on sexual differentiation, Angiospermae PREDA — , steroid & sterol synthesis, immature gonad in vitro, Aves CEDARD GUICHARD — , localization in placenta, Homo IKONICOFF hypophysectomy, effect in mineralization of scales, Teleostei NUSSBAUM ICSH, interaction with FSH in action on Leydig cells, Rodentia LOMBARD in pupa, normal & abnormal, Lepidop- tera WOLBERT induction of oocyte maturation, Urodela BARSACCHI insect & analogs, effect on embryogenesis, metamorphosis & reproduction, Insecta STAAL — , effect on development, ultrastructure, Diptera OKADA — , — — embryogenesis, Orthoptera EWEN — , mode & time of action, part, cell cycle, Lepidoptera GRANGER interactions in development, growth & meta- morphosis, Amphibia, Aves FRYE — , oocyte, Anura HORTON juvenile, chromosome puffing, Diptera BILO — , effect on cuticular protein & morphology, Hemiptera, Lepidoptera WILLIS — ■, — — nucleic acid & protein synthesis, Blattariae, Diptera SHAAYA — , protein incorporation by ovary, in vitro, Lepidoptera ISHIZAKI — , protocatechuic acid glucoside syn- thesis in accessory sex gland, Blattariae SHAAYA — , general & applied, Insecta SCHOONEVELD — , mode of action, Arthropoda SCHNEIDERMAN — , , Blattariae, Diptera SEKERIS — , role of enzymes in metabolism, Insecta WEIRICH — , teratogenesis, Aves, Mammalia KRISHNAKUMARAN — , uptake, elimination, distribution & meta- bolism, Insecta WEIRICH LTH, effect on tail resorption, Anura DERBY — interaction with thyroid, metamorphosis, Urodela GONA mechanism of action, Vertebrata SEGAL metamorphic effect on bone & cartilage, Artiodactyla, Rodentia KNESE mimetics, effect on metamorphosis & ooge- nesis, Coleoptera, Diptera LEVINSON neurosecretory, physiology & biochemistry, Coleoptera SCHOONEVELD 277 HORMONES (contd.) pancreatic, effect on liver cells in vitro, Anura SOLURSH pituitary control part, mesonephros compo- nents, Rodentia ROOS prolactin, effect on growth & nitrogen excretion of tadpoles, Anura ARIMA — , prevention of hormone-induced meta- morphosis, Anura TATA — , role in limb regeneration, Urodela WATERMAN prostaglandins, effect on skin & derivatives, Aves, Rodentia KISCHER PTH effect on cyclic AMP in bone, Rodentia HEERSCHE — , mammary gland, Ca, milk, Rodentia DIJ5 regulation of metamorphosis, Insecta LAUEER relation to differentiation, Blattariae BULLIERE histones, RNA & protein, neural crest in vitro, Anura ANDREW regeneration of appendages, Blattariae BULLIERE reproduction, Teleostei YAMAMOTO role in blastocyst implantation, Artiodac- tyla ROBERTSON — — fat body development, Diptera BUTTERWORTH limb regeneration, Urodela TASSAVA liver development, electron microscopy, organ culture, Aves BENZO metamorphosis, Anura HANAOKA , Anura, Hemiptera GOLDSMITH ovulation, fertilization & early develop- ment, Homo, Primates, Rodentia BAKER primary sex differentiation, Aves LUTZ regeneration, Amphibia THORNTON , Urodela SCHMIDT teratogenesis, Aves, Rodentia VAN DETH yolk sac membrane metabolism, Aves THOMMES secretion, unimplanted blastocyst, Rodentia DICKSON sex, pennatal administration, effect on sexual morphology, function & behaviour, Rodentia SWANSON sexual reproduction, Lepidoptera WARREN thvroid, influence on limb regeneration, Anura KOLLROS tissue responses in metamorphosis, Amphibia KOLLROS vasopressin-like, blastula, Anura KOSTELLOW MORRILL HORN(S) antlers, experimental study, Artiodactyla HARTWIG Vertebrata FRIANT HYBRID(S) amphidiploids, Anura KAWAMURA NISHIOKA Anura FOWLER Aves LUTZ European & Japanese forms, Anura KAWAMURA gastrulation, cell contact, Anura JOHNSON gene expression, Anura JOHNSON gonads, functional development, Urodela MANCINO intergeneric, Urodela FERRIER — , placentation & gestation, immunology, Artiodactyla HANCOCK McGOVERN interordinal, amino acids, Echinoi- dea BROOKBANK interspecific & intergeneric, asynchronous xrl— activation of alleles, Teleostei WHITT — , chromosome fine structure & function, Diptera KAUFMANN — , cytogenetics, Teleostei OJIMA mitotic recombination, Diptera NOTHIGER nucleo-cytoplasmic, interspecific, Anura KAWAMURA NISHIOKA racial, diploid & haploid, Anura MOORE — , lethal, karyotype, Anura MOORE sexual differentiation, Aves DERAY GOMOT sterile, reproductive system, Aves GOMOT MARCHAND transmission & natural, gametogenesis & nucleolar repression, Anura BLACKLER viability, Orthoptera BLONDHEIM HYPERPLASIA see Growth HYPERTROPHY see Growth HYPOPHYSIS activity during life cycle, Anura DERBY adenohypophysis, histochemistry, metamor- phosis, Anura REYNOLDS — , ultrastructure, Vertebrata PEHLEMANN Anura LIANG Aves HAMMOND before & after metamorphosis, Urodela PRAHLAD connections with hypothalamus, Anura ENEMAR , Lagomorpha, Rodentia TERNEBY , Rodentia DAIKOKU control of endocrine function, Rodentia ROOS correlation with adrenals & gonads, Aves WOODS drainage, Lagomorpha TERNEBY effect of goitrogens, interrelation, Chelonia DIMOND — on lens regeneration in vivo & in vitro, Urodela CONNELLY steroids in gonads & adrenals, A%es WOODS electron microscopy, Anura HERBERT Aves GRIGNON GUEDENET , Rodentia JARSKAR EURENIUS & enzyme histochemistry, Homo, Rodentia HACH experimental embryology, Aves DOSKOCIL — study, Aves LE DOUARIN gonadotropic function, immunologic analysis, Vertebrata SEGAL grafting, Teleostei OLIVEREAU histophysiology, relation with osmoregulation, Teleostei OLIVEREAU hormones during metamorphosis, Anura DERBY interaction with pineal gland & gonads, in vitro, Rodentia LOMBARD lactotroph hormone, Rodentia MITRA median eminence, electron microscopy, Anura HERBERT ( monoaminergic nerves, Anura ARONSSON , monoamines, ultrastructure, Rodentia JARSK££ EURENIUS melanophore-stimulating activity, Amphi- bia THURMOND neuro-, histogenesis, Carnivora, Lago- morpha ^^7S5 neurosecretional pathway, Aves MALAPRADE pituitaryless embryos, pituitary grafts & hor- mone injections, Aves WATTERSON relation with adrenal, Aves Ssii , Aves, Mammalia MOOG cortex, effect of chemical inhibitors, Teleostei OLIVEREAU liver & hepatoma growth, ultra- structure, Rodentia BADRAN ECHAVE LLANOS GOMEZ DUMM — — reproduction, Teleostei MOISEEVA role in development of long bones & mus- culus complexus, Aves WATTERSON — — diabetes insipidus, Aves BUSS structure & function, Vertebrata WATERMAN transplantation, xenoplastic, species specificity, Amphibia BYTINSKI x-ray destruction, effects on development, Lacertilia RAYNAUD HYPOXIA see Respiration IMAGINAL DISCS biochemistry, esp. proteins, Diptera SPKEY cell death, Diptera SPREY — heredity, Diptera MORATA — , specific adhesion, in vitro, Diptera SPREY determination & cell lineage, Diptera DUBENDORFER — , normal & mutant, Diptera GINTER — , transdetermination & differentiation, Diptera HADORN developmental capacity, Diptera SCHUBIGER 278 differentiation, histochemistry, Diptera SPREY — in vitro, Diptera TURNtR effect of chemicals, part. 5-FU, Lepidop- > tera LAFONT x rays & ecdysteron, Diptera VIJVERBERG evagination & differentiation in vitro, Diptera n. MAN°^S? eye, effect of eyeless mutant, Diptera ARKING gene expression in vitro, Diptera ^ct V rTo head, experimental study, Diptera SCHOELLbR imaginal buds, Diptera Wi5ggFNGTON in vitro, single cell cultivation, Dl'P'?'fl KURODA — vivo & in vitro, Lepidoptera OBERLANDER intergeneric grafts, Diptera BODENSTEIN leg, ultrastructure, Diptera ^»V^c normal & abnormal, in vitro, Diptera G^EFF organization, Diptera UKSFKUMj PaD^rfa°rmati°n' ^ ViV° CUltUre' OUWENEEL PrSSS0n & DNA SyDtheSiS' VIJVERBERG regeneration & duplication, Diptera BRYANT regulation of determination & diiierena0a!fK>n, Diptera SANDERS specificity of cell recognition, Diptera GARC IA. teratoaenesis by thermal stress, Diptera HO*\=>t;AL.L transdetermination, Diptera CD,c-rVrw ultrastructure, Dipteia ™^t rcn wing, Diptera, Lepidoptera V VrnvT — , biochemistry, Lepidoptera ^V^ta _, development & culture, D/'prera GARCIA — , developmental genetics, Diptera GARCIA zygotic lethals, clonal behaviour, Diptera R1PUCL IMMUNOCHEMISTRY ^cl}TQr.H cellular differentiation, Acrasiales GtRl^uti egg protein, transfer to embryo, ^>«rill^LL1 eye lens, Anura, Axes CLAYTON TRUMAN proteins, Aves, Homo DOORENMAALEN immunofluorescence, albumen uptake m embryo, Gastropoda ^\Viri^ — , brain differentiation, Ares Snwo — , primary induction, Aves Jb aa*« Langerhans cell, origin, Rodentia „ *^r££l muscle differentiation, Anura, Aves IRA^yASHI P-teu^changes, early °-eloemen£TANISSTREET — synthesis, clonal liver cells, Homo, Rodentia KAIGHN tooth, extracellular substances, Lago- „__, morpha SLAVKIN IMMUNOLOGY (developmental) actin & myosin synthesis in somite, ATTr-VT Aves . ALLEN antibody absorption, neonatal, Insectivora, Rodentia MORRlb — against lens protein, effect on lens, 1„Mm_ Lagomorpha ™ ^U — , cytotoxic, Homo AD£rb7~u — effects on fertilization, Anura BARCW — production, humoral, primary, Aves SE1U — to nervous tissue, producing dysraphia, Aves BARS ON — transfer, perinatal, via placenta, fetal membranes, mammary gland, gut, A^T_____-I Rodentia ANDERSON anti-brain antibodies, teratological effect, Aves FRIEDMAN antigens, cell surface, spermatogenesis & embryology, Rodentia BENNfcll _ tumor & embryonic cell, ^^„.T Rodentia EDIDIN — coded for by paternal nucleus, first appearance, Echinoidea S'lt-u a — , early stages, Amphibia „?T$h£v PALECEK ROMANOVSKY — , effect on follicular epithelium, Aves KURULASHVILI — . eve & kidney, Aves, Homo, Rodentia A^™^^ BARABANOV TITOVA VYAZOV — , histocompatibility, Homo ADINOLFI f — t early embryo, Rodentia EDIDIN — in brain, Rodentia VAN ALTEN — , Miillerian duct epithelium, Rodentia FORSBERG — , reaction of intestine, Aves CHANTURISHVILI suprarenals, Aves OTZCHELI _', testis, Aves KANKAVA — , spermatozoa, location, Anura SHAVER — , testis, Rodentia 7-,tt^t — , transplantation, Rodentia EDIDIN antipituitary sera, effect on development, Aves VENEZIANO antisera from egg & embryo extracts, effect on development, Asteroidea PEARCfc. blood antigens in haemolymph & tissues, Hymenoptera . LENSKY brain antigens, microcomplement fixation, Aves WENGER — , normal & abnormal development, Aves, Rodentia ^JXSJJ^S cell surface antigens, Rodentia F ^^Tavt chromatophore interactions, Urodela DUNCAN competent cells, origin & differentiation, in vitro, Lacertilia MUTHUKKARUPPAN complement, synthesis in vitro, Homo ADINOLFI decidualization, Rodentia cwavtpb egg jellv, Anura SHAVtR embryo-maternal relation, Homo, Primates. Rodentia VERBICKY embrvonic immunity, Porifera M°}'1TT9SA^ enzyines, Aves J?£2}i a«7? ervthrocyte membrane, Rodentia FURUSA VVA erythropoiesis in metamorphosis, Anura INGRAM eye cup & retina, Amphibia C^A?YTON — lens crystallins, Aves ^^tw?^?™ proteins, Aves, Homo DOORENMAALEN regeneration, Amphibia CAMPBELL TRUMAN fetal & neonatal immunity, thymus & spleen, Homo D a ■ ¥!$£££ fetal-maternal relations, Homo, Rodentia KtittitL in interseneric hybrids, Artio- dacnla HANCOCK ° McGOVERN gonads, Lagomorpha, Rodentia ELGER grafting, Nemertea BIERNE histocompatibility antigens in matrix vesicles, effect on homotypic cell cultures, Lagomorpha SLvXtS£ , nuclear transplant animals, Anura VULft homoaraft reaction, primary, Aves SETO hormone antibodies, effect on fetus & post- natal growth, Rodentia CHAMBERLAIN hvpophvsis, gonadotropic function, Verte- ' brata . SEGAL immune capacitv. control mechanism, in vitro, Lacertilia MUTHUKKARUPPAN — reactions against spermatozoa, effect on embrvonic development, Lagomorpha MENGE - response & lymphoid tissue, ^«^TELOJJRK ( cell interaction, Rodentia ARGYRIS — sera, maternal, effect on embryo, Rodentia DEUCHAR STANISSTRF.ET svstem, Aves, Rodentia ALBRIGHT - 1 Rodentia MAKINODAN immunocompetence, experimental onset, ______ Aves, Rodentia SOLOMON — , normal & abnormal development, A nura KIDDER An RUBEN immunoeenesis, cellular foundation KORKIA immunogenic responce, in vitro, Rodentia pUTI UN immunoglobulin, lymphoid cells, Homo, Lago- morpha, Rodentia CEBRA immunomorphology, embryo, effect of tem- perature, Aves CRAJ?i^ PREDA lvmphocyte competence, mitogens, Aves, ' Rodentia VAN ALTEN macrophages, role in antibody synthesis, Rodentia ARGYRIS maturation, correlation to lymphoid tissue, larva, Anura MAJ?5£f-G! — of immune capacity, Rodentia ARGYRIS mechanism controlling compensatory hyper- trophv, Rodentia BABAYEVA microtubule proteins, comparative study, Echinoidea . ^IMURA muscle development, Aves, Rodentia LANGMAN 279 IMMUNOLOGY (contd.) ontogeny of mechanism, Axes, Rodentia VAN ALTEN oocyte maturation, Teleostei APEKIN organ-specific proteins, kidney, Aves CROISILLE potentiality, comparative study, Aves, Reptilia KORKIA pregnancy, Mammalia BILLINGTON — & reproduction, Homo, Rodentia KETCHEL radiation effects on haematopoietic organs, Rodentia TAMANOI red blood cells, membrane differentiation, Aves D'AMELIO regeneration, effect of antiserum, Urodela TABAN relation between mother & embryo, Rodentia ZIMMERMANN — with neoplasia, Amphibia RUBEN — — nuclear transplantation, Amphibia ROMANOVSKY SLADECEK wound healing, Mammalia WATTS reproduction, Homo, Mammalia EDWARDS role of thymus, Anura VOLPE seminal antigens, Homo KULANGARA — plasma protein antigenicity, Homo NAKABAYASHI skin graft reaction, Anura BOVBJERG sperm antibodies, Homo BEHRMAN spermatogenesis, Rodentia BISHOP subspecies, Anura PARRINELLO tissue antibodies, teratogenic & embryotoxic effect, Aves, Rodentia McCALLION — specific antibodies, effect on differentiation, Anura SHAVER tolerance induced by intracoelomic grafts, Aves MUN — , neural crest homotransplantation, Anura VOLPE — , xeno- & homograft, Urodela TABAN trophoblast, antigenicity, Lagomorpha, Primates, Rodentia BEHRMAN IMPLANTATION see Blastocyst INDUCTION (embryonic) see also Competence; Determination; Epithelial -mesenchymal interactions; Organization agents, effect on RNA metabolism of dis- sociated embryonic cells, Amphibia IYEIRI bone & cartilage cells, Rodentia NOGAMI cartilage, by notochord & neural tube, Aves STRUDEL Cephalopoda MARTHY cornea, Gastropoda POPOV cranium, Aves ROBADEY SCHOWING DNA synthesis, relation to mitosis & diffe- rentiation, Anura LOWERY during regeneration, Turbellatia LENDER ectoderm, in solutions of inducing substances, Urodela KOCHER — , induced & non-, RNA, Anura THOMAS effect of teratogens in vitro, Aves, Rodentia JOHNSON Wolffian duct on mesenchyme, in vitro, Aves MARTIN — — x-rays, Urodela REYSS electron microscopy, Anura EAKIN KELLEY , Urodela VAHS epiblast & hypoblast, separation by mem- branes, Aves WOLK eye coats, by retinal epithelium, Aves NEWSOME — , effect on eye cup of embryonic tissue replacing lens, Amphibia SICHAZULIDZE — lens, Ave s MODAK , histochemistry, Aves STARRE in vitro, Aves STARRE — — proteins, immunology & immuno- chemistry, Aves, Homo DOORENMAALEN f tissue interaction, Aves MIZUNO — tissues, transfilter, Anura HOPERSKAYA gastrulation, Urodela DOUCET heart development in vitro, Urodela FULLILOVE — , endodermal inductive factor, Urodela JACOBSON heterogeneous, Aves McCALLION — inductors, ectoderm, Aves ROSTEDT specificity of action, Amphibia JOHNEN J , Urodela TOIVONEN inductive capacity, presumptive endoblast & meso- blast cells, primitive streak, Aves GALLERA intercellular messages, Anura, Aves FABIAN kidney tubules, Rodentia LOMBARD mechanisms, Aves GALLERA mesenchymal, organ specificity, Rodentia KRATOCHWIL mesoderm, Urodela BOTERENBROOD NIEUWKOOP mesodermal factor, Urodela KOCHER metamorphosis, Ascidiacea O*^ morphogenes, animal-vegetal, Echinoidea IMMERS morphogenesis & regeneration, Hydrozoa MULLER morphogenetic substances, characterization & action, Amphibia TIEDEMANN mouth & teeeth, in vivo & in vitro, Urodela CAPURON neural, biochemistry, in vitro, Anura DEUCHAR — , causal study, histochemistry, electron microscopy, microcinematography, Anura TARIN — , temporal aspects, Aves HARA neurulation, latency period, Aves GALLERA nose, lens, ear, Urodela JACOBSON primary, Aves LEIKOLA — , cytochemistry, Urodela HAYASHI — . ectoderm cell reactivity, Urodela IYEIRI SASAKI — , immunofluorescence, Aves NORD — , isolation & biochemistry of factor, Anura FAULHABER — , lysozyme & cell division, Urodela KAWAKAMI — , mechanism, Urodela SAXEN TOIVONEN — neural, Aves ENGLAND — , protein synthesis, Anura LE PATOUREL — , role of SH-groups, in vitro, Aves RAO — , tracer studies, Aves NICOLET quantitative cytochemistry, Vertebrata VAHS regional effect as related to molecular struc- ture, Aves, Urodela SASAKI regionally specific, Urodela ENGLANDER retina, Anura, Aves H°t0PASH0V rhombencephalic & anterior spinal cord region, Ave, WIERTZ role of SH groups, Aves MULHERKAR time factor, Urodela JOHNEN urogenital system, Amphibia, Aves LEPORI INFECTIONS see Bacteria; Virus see also Pathology INNERVATION see Nerve(s) INSEMINATION see Reproduction (sexual) INSULIN w blood level in fetus & mother, Rodentia FELIX JACQUOT SUTTER effect on embryonic tissue in vitro, Aves DYER in developing pancreas, Aves, Rodentia COALSON placental transport, Primates REYNOLDS INTEGUMENT see also Skin bristle cell, pupal, nucleolar organizer, „.„„,., Diptera ROB£HI2£ — pattern, asymmetrical, Diptera VREEZEN — , experimental analysis, Heteroptera LAWRENCE chitin synthesis, control of, tracer studies, Decapoda STEVENSON chitinogenic cell of maxillary bud, utxtrt Heteroptera -m£5v? A cuticula, leg regeneration, Blattariae LEOPOLD — , proteins, Lepidoptera -^££^3- DUBEY & morphology, effect of juvenile hormone, Hemiptera, Lepidoptera WILLIS foot & mantle, histo- & biochemistry, Mollusca BOLOGNANI inductive interactions, comparative study, Vertebrata J^TticD shell gland, Mollusca GATHER 280 , cytochemistry & physiology, Gastro- poda, LameUibranchia TIMMERMANS — , morphology & electron microscopy, Cephalopoda FIORONI INTERSEXUALITY see Sexual development INTESTINAL TRACT cell organelles, Rodentia VOLLRATH disaccharidases, Carnivora, Rodentia KRETCHMER effect of x-rays, biochemistry, Aves GASC electron microscopy, histochemistry, Rodentia VOLLRATH epithelium, cell renewal & differentiation, Urodela MARTIN — , — surface differentiation, Aves, Mammalia MOOG — , developmental potentiality, mitochondria, Anura MACDONALD — , differentiation, Annelida, Crustacea BAFFONI — , postnatal maturation, Carnivora, Lago- morpha, Rodentia BECK esophagus, metaplasia, Aves, Homo MOTTET mid-gut, origin & differentiation, Diptera POULSON reaction to antigens, Aves CHANTURISHVILI small intestine, Rodentia GALAND topographical relationships, Rodentia PLEEGING IODINE organic compounds in thyroid gland, Chelonia DIMOND IONS see also Minerals; specific ions Ca, Na, K, Mg, role in egg activation, Anura MORRILL — metabolism, radio isotope study, Aves SIMKISS effect on differentiation, localization in cells, electron microscopy, Amphibia LEHMANN electrolytes, role in regeneration & meta- mophosis, Amphibia BURKART Hg, effect on embryo, in vivo & in vitro, Aves FOOTE inorganic, chromosome puffing, Diptera BILO — , effect on cell differentiation, Hydtozoa MACKLIN — , nucleus, Diptera TROSCH ionic changes in blastula associated with morphogenesis & cell differentiation, Anura KOSTELLOW MORRILL K, in serum, Rodentia GRABOWSKI metals, effect on development & regeneration, correlation with effect on enzymes, Echinodermata, Turbellaria HEIN Na transport into blastocoel & germ layer, Anura KOSTELLOW MORRILL organic, effect on chromosome puffing, Diptera GOPALAN placenta, Homo IKONICOFF polyanions, effect on nucleic acid metabolism, Aves TEMPEL transport & relation to fluid accumulation, blastocyst, Rodentia CROSS IRON IRRADIATION see also Ultraviolet irradiation; X-irradiation NAKAZAWA TAGUCHI YAMADA change in sensitivty, Teleostei EGAMI effect of nuclear labelling, Amphibia CHIBON — on circulatory system, Aves STEARNER differentiation & metabolism, embryo, Orthoptera TAHMISIAN early stages, morphology & physiology, Carnivora, Lagomorpha, Rodentia HUNT embryo, Lepidoptera TEULADE — — — survival, Hymenoptera GROSCH fetus, alleviation, Rodentia PANTELOURIS haematopoietic organs, immunochemistry, Rodentia TAMANOI lympho-myeloid tissues, Rodentia THOMAS — — methylated xanthine-treated eggs, Echinoidea CHENEY biochemical effects, Anosttaca , Anura, Teleostei — — nervous system, Mammalia MULAREK WENDER oogenesis & embryo, Anostraca IWASAKI — — phosphatases & lysosomes, Aves TEMPEL . reproductive organs, Rodentia MURAMATSU spermatogenesis, Lepidoptera IWASAKI electromagnetic, effect on neuroblast, organ culture, Orthoptera COLE embryo, germ cells, genetics, Diptera SHIOMI YOSHIKAWA germ cells, change in sensitivity, Teleostei HYODO , fine structure, Primates, Rodentia FRANCHI Homo, Rodentia REVESZ inducing embryonic death, Hymenoptera AMY ionizing, effect on early stages, Coleoptera BLUZAT — , embryo, Aves RODRIGUES XAVIER — , , Rodentia KAMEYAMA — , , different temperatures, Teleostei WADLEY WELANDER — , — — gametogenesis, Chondrostei, Teleostei PERSOV ZUBOVA low doses, long term effects, Teleostei ETOH nuclease inhibitors, Aves TEMPEL oocytes, relation with structure & function of chromosomes, Mammalia FRANCHI ruby laser, effect on embryo, Hymenoptera AMY sensitivity of haploid & diploid embryos, Anura HAMILTON spermatozoa, effect on zygote development, Lagomorpha DOTT undifferentiated cells, activity, normal & regenerating animals, Turbellaria CHANDEBOIS x, effect on bone marrow, ultrastructure, Carnivora TAHMISIAN JAW(S) see Skull JOINT(S) see Skeleton KARYOTYPE see Chromosome(s) KIDNEY(S) antigens, Aves, Homo, Rodentia AVERKINA VYAZOV ATPase, Rodentia WAYMOUTH compensatory response to unilateral nephrec- tomy, Artiodactyla, Lagomorpha BERTON differentiation, organ culture, electron micros- copy, Rodentia RAPOLA effect of Wolffian duct on mesenchyme, in vitro, Aves, MARTIN electron microscopy, Rodentia IOANNOU enzymes, experiments with actinomycin D, Rodentia SCHIEBLER function, Artiodactyla NLXON functional development, fine structure, Aves DOSSEL Mammalia SPENCER mesonephros, Aves CROISILLE GUMPEL MARTIN — & metanephros, effect of aminoguanidine, Aves WATTERSEN , relation to embryonic fluids, Artiodactyla, Lagomorpha BERTON — components, culture, interactions, endocrine & neural control, Rodentia ROOS — , cytology, histochemistry & culture, Aves AMADO — , descriptive & experimental study, Anura CAMBAR — differentiation, induction, Aves MARTIN — , electron microscopy, Anura CAMBAR , Aves RODRIGUES metanephros, Homo ALEXANDRE — , histochemistry, Artiodactyla BYLINA — , morphology & histochemistry, Aves DUBEY QUADEER — , vascularization, Mammalia HUREAU morphological changes, pre- & postnatal, Rodentia BLOUNT nephrectomy, effect on lung, Artiodactyla, Lagomorpha BERTON 281 KIDNEYS (contd.) — , survival, oligohydramnios, Artlo- dactyla, Lagomorpha BERTON — , unilateral, enzymology, Rodentia BERTON postnatal MOFFAT pro- & mesonephros & duct, determination & morphogenesis, Urodela ETHERIDGE grafts, hypo- & hyperthyroid con- dition, Anura FOX — , growth & degeneration, electron micros- copy, Anura FOX — , ultrastructure, Anura CAMBAR proteins, organ-specific, Axes CROISILLE regeneration, functional hypertrophy, Mammalia ARGYRIS RNA synthesis, effect of folic acid, Rodentia KOHL tubules induction, Rodentia LOMBARD tubulogenesis, Rodentia SAXEN WARTIOVAARA LABYRINTH see Static organ LARVAL DEVELOPMENT see Development (larval) LARYNX see Respiratory tract LATERAL LINE SYSTEM organogenesis, Chondrostei DRAGOMIROV LEUCOCYTES see Blood LIFE CYCLE(S) see also Development (general) Cephalopoda NATSUKARI comparative & phylogenetic, Endoprocta NIELSEN paedogenetic-bisexual forms, Dipteta CAMENZIND ULRICH parasitic forms, Copepoda COSTANZO subterranean species, Copepoda LESCHER Trematoda BILQEES LIGHT photeperiod, effect on diapause, Diptera BRUST role in skull & organ growth, Lagomorpha, Rodentia FANGHANEL SCHUMACHER LIMB(S) see also Regeneration (traumatic); Skeleton; Wing(s) bud, cell adhesion, Aves MASLOW — , ectodermal ridge & distal system, histo- chemistry, enzymes, Aves NAVAGIRI — , — thickenings, Aves RONCALI — , effect of hadacidin, in vitro, Rodentia MILAIRE — , experimental studies, Aves EDE — , formation & regression, Lacertilia, Ophidia RAYNAUD — , histochemistry, Lacertilia RAYNAUD — , interordinal transplantation, differen- tiation & immunology, Aves, Rodentia HANSBOROUGH — , organ culture, Aves GUMPEL — , , Urodela WILDE — , relation to somites, Chelonia, Lacertilia VASSE — , RNA & DNA, epidermal & mesodermal cells, Chelonia, Lacertilia RAYNAUD VASSE buds, teratology, Rodentia FRITTS carpus & tarsus, morphogenesis, Artio- dactyla RAJTOVA congenital malformations, Homo LENZ development & regeneration, pattern formation, Amphibia WOLPERT ectoderm-mesoderm interactions in develop- ment, Aves SAUNDERS — — — , xenoplastic chimaeras, Aves PAUTOU ectrodactyly, Amphibia ROSTAND effect of uv-radiation, Urodela BUTLER embryonic development, descriptive & expe- rimental, Phasmida FOURNIER epithelial-mesenchymal interactions, histo- chemistry, electron microscopy, Anura, Urodela STURDEE TARIN experimental embryology, Aves SEICHERT STEDING , Urodela AMANO foot, effect of various agents, Aves PAUTOU growth, Homo DUVAL interaction with wing, xenoplastic chimaeras, Aves PAUTOU interdigital spaces, electron microscopy, Aves PAUTOU malformations by neuromuscular blocking agents, Rodentia SHORO — , congenital, Homo YASUDA — , mechanisms, Rodentia KAMEYAMA Mammalia STERBA mesenchyme cells, normal & mutant, behaviour & differentiation, Aves FLINT mesoderm-ectoderm interaction, Aves GOETINCK morphogenesis, Rodentia, Urodela LAYTON — & pattern formation, Blattariae WEBSTER — , cell death, Aves, Homo, Rodentia FALLON — , role of nervous system, Aves KIENY — , ultrastructure, Mammalia KELLEY muscles, vascularization, Homo PORRAS neuromuscular apparatus, Anura PRESTIGE normal & abnormal, part, associated with spina bifida, Homo, Rodentia LENDON RALIS pattern formation, Polydactyly mutant, Rodentia KOCHER Polydactyly, Amphibia ROSTAND relations between axial & lateral mesenchyme, Aves GUMPEL role of axial organs, Aves • SENGEL skeleton, morphogenesis, regulation & com- petition, autoradiography, Aves KIENY — , x-ray analysis, Aves GOFF supernumerary, differentiation & feather growth, Aves DHOUAILLY — , locomotion studies, Urodela BRANDLE — , part, role of nerves & skin, Urodela LHEUREUX toe joints, effect of parathyroid in vitro, Rodentia BURGER transplantation of limb region, movement of limbs, Urodela BRANDLE twinning, nerve patterns, Aves CAMOSSO — , vascular patterns, Aves RONCALI vascular system, Homo, Mammalia MAZHUGA vascularization, Homo MRAZKOVA weight, asymmetry, Homo SINGH LIPID(S) (& fatty acids) see also Adipose tissues egg yolk, role in blastodisc hemoglobin syn- thesis, Aves WAINWRIGHT histochemistry, pathological placenta, Homo IVEMARK linoleic acid metabolism, postnatal, Rodentia PASCAUD lung, Aves DAMERON MARIN metabolism & phospholipids, Lepidop- tera NAUTIYAL PANT SINGH — , as affected by mutants, Diptera DOANE — , effect of maternal diet, Aves DONALDSON phospho-, egg & larva, Anura LOBO LITHIUM effect on cleavage, causal study, Gastropoda BOON ectodermal differentiation capacities, Urodela ENGLANDER embryo, cell-lineage, Gastropoda VERDONK in vivo & in vitro, Aves FOOTE LIVER see als Gall bladder (& bile ducts); Regeneration (traumatic) bile ducts, Homo LASSAU biliary tract, functional development, Homo TAKITa cells in vitro, effect of hormones, Anura SOLURSH cellular differentiation, biochemistry, Aves HOUSSAINT LE DOUARIN clonal cells, plasma protein synthesis, Homo. Rodentia KAIGHN correlation with body dimensions & surface area, Homo SPENCER 282 cytochrome, Rodentia ASAMI differentiation in vitro, biochemistry, endo- crinology, Rodentia CROIZAT PIPERNO effect of aminoguanidine, Aves WATTERSON ethanol, histochemistry, biochemistry, Rodentia CRISTEA embryonic cells & hepatoma, proteins, Aves, Rodentia MURISON enzymes, distribution & activity, Anura, Rodentia BOCZKOWSKA — , formation & activity, Anura NAGANO SHUKUYA experimental study, Aves, Rodentia HOUSSAINT LEDOUARIN fetal, hematopoiesis, Rodentia JACQUOT NAGEL functional development, fine structure, Aves DOSSEL gall bladder nerve plexus, electron micros- copy, Homo TAKITA glucose & glycogen, pre- & postnatal, electron microscopy, Rodentia JACQUOT PLAS glycogen metabolism, Aves BENZO growth control, Rodentia BADRAN ECHAVE LLANOS RESTELLI — induction by drugs, Rodentia ARGYRIS — , relation to hypophysis, Roden- tia ECHAVE LLANOS hepatocytes & hematopoiesis, postnatal, Lagomorpha LEESON — in vitro, glucose & glycogen, Roden- tia JACQUOT PLAS heterospecific association, tubule development, Aves, Rodentia DIETERLEN histogenesis, effect of metabolites in vitro, Aves LEVENSON inorganic salts compared to level in blood plasma, Anura, Rodentia WYSOCKA Mammalia SPENCER metamorphic differentiation, biochemistry, thyroxine action, Anura COHEN microsomes, function, Rodentia YUKAWA mitochondria, relation to M-DNA, Rodentia WEBER — , , Rodentia WELLAUER neonatal, cytology, histochemistry, electron microscopy, Rodentia MALET POURHADI TURCHINI proteins & chromatin, effect of hormones, BUDR & x-rays, Rodentia MALPOIX RNA methylation, Rodentia HANCOCK role of hormones, electron microscopy, organ culture, Aves BENZO transplantation, Anura DAIMON — , ectopic, Rodentia SELLER ultrastructure, Homo SEIDL wounds, enzymes, Rodentia KARKOLA LOCOMOTION see Behaviour LONGEVITY hereditary & environmental factors, Insecta ROCKSTEIN LUNG(S) (& air sacs, swim bladder) ATPase, Rodentia WAYMOUTH development after nephrectomy, Artiodactyla, Lagomorpha BERTON — & aging, Lagomorpha, Rodentia ALBRIGHT — — teratogenesis, Rodentia NOACK tumor induction KAUFFMAN effect of oligohydramnios on development, Rodentia FRASER electron microscopy, Carnivora, Marsupialia FAULKNER , effect of urethane, Rodentia HERMAN KAUFFMAN enzymes, activity, Aves DAMERON MARIN — , distribution & activity, Anura, Rodentia BOCZKOWSKA epithelio-mesenchymal interactions, Aves CARINCI epithelium, ultrastructure, part, action of hete- rologous mesenchyme, Aves DAMERON MARIN fetal, development & birth changes, expe- rimental study, Artiodactyla, Rodentia TOWERS inorganic salts compared to level in blood plasma, Anura, Rodentia WYSOCKA lipid biosynthesis, Aves DAMERON MARIN postnatal growth, Marsupialia STRATFORD regeneration, Rodentia ROMANOVA swim bladder, relation to ear, Teleostei MOULTON LYMPHATIC SYSTEM see also Spleen; Thymus cell regeneration & migration, Rodentia HINRICHSEN correlation to immunocompetence, Anura MANNING development, Vertebrata TONDURY — . & immunology, Rodentia PANTELOURIS — , transplantation, irradiation, Homo, Primates, Rodentia THOMAS lymph gland, regeneration, Vertebrata ASNANI BONNY SHAH lymphocytes, effect of cytochalasin, Homo SMITH — , maternal, effect on embryo, Rodentia DEUCHAR STANISSTREET — , pineal organ, Aves SPIROFF lvmphocytopoiesis, radio-isotopes, Aves VAN ALTEN lymphoid cells, differentiation, globulin, Rodentia HAGIWARA , immunoglobulin, Homo, Lagomorpha, Rodentia CEBRA , transformation by phytohaemagglutinin, Aves, Rodentia SOLOMON Teleostei MUTHUKKARUPPAN LYMPHOCYTES see Lymphatic system LYSOSOMES see Subcellular components MACROPHAGE SYSTEM influence on liver regeneration, Rodentia STERN MAGNETIC FIELDS effect on nervous system, Aves VENEZIANO MALFORMATIONS see also Teratogenesis achondroplasia, histology & biochemistry, Homo, Lagomorpha SHEPARD anencephaly, Homo TUCHMANN — , ciliary ganglion, Homo DI DINO — , morphogenesis, Homo PASSAPONTI anophthalmia, hereditary, effect of teratogens, Rodentia CHASE Aves STOLL axial, induced by trypan blue & RNA-se, Ave s LANOT biological study, etiology, Homo BERNDORFER blood vessels, experimental, Aves, Homo, Mammalia KREDIET brain, Rodentia AUROUX branchial region, Amniota, Homo SLIPKA cardiovascular, epidemiology, Homo SEMBA — , teratogenesis, Aves STEPHAN cataract, anterior polar, Carnivora SHUPE central nervous system, experimental, Lagomorpha, Rodentia NAKAMURA chromosomes, Homo BHARGAVA PURI — , aberrations, Rodentia WROBLEWSKA , virus induced, Homo MAKINO cleft palate & lip, Artiodactyla, Carnivora SHUPE comb & beak, after neural crest removal, Aves LAWRENCE congenital, Rodentia NAGAE — , epidemiology, Homo KALLEN OAKLEY YASUDA — , etiology, Rodentia MIKAMI — , incidence, Homo PACKER — , part, anencephaly, Homo BOSSY — , part, intersexuality & embryo death, Mammalia BISHOP 283 MALFORMATIONS (contd.) — , skeletal, Homo — — biochemistry, Rodentia CARMONA MALININA PASCHIN KLEIN coronary arteries, Aves, Homo cyclopia, Veratrum induced, Artiodac- tyla EVANS cytogenetics, Artiodactyla ISHIKAWA — , Homo KAJII double, by centrifugation of eggs, Diptera YAJIMA — monsters, Homo, Rodentia KLEISS ductus arteriosus, open, experimental study, Artiodactyla, Lagomorpha, Rodentia HORNBLAD duplicitas cruciata, experimental, Orthop- ia KRAUSE dysraphia, experimental, Aves BARSON ectrodactyly, Amphibia ROSTAND epidemiology & pathogenesis, Homo TANIMURA exencephaly, Rodentia MURAKAMI exostosis, multiple, Perissodactyla SHUPE experimental induction, Rodentia WECHSLER eye, gene-conditioned, Rodentia GUMBRECK — , inherited, prevention by drugs, Rodentia genital & urinary, Rodentia harelip, Homo heart, Artiodactyla — ' & great arteries, Homo , Homo, Mammalia — , part, hypoplasia, Mammalia Homo KONUYKHOV ALLISON LIMBORGH NIE KLEIN ROBERTSON KREDIET WENSING BODELET NIE RAPOLA hydrocephalus, 6-aminonicotinamide, Rodentia CHAMBERLAIN — induced by virus infections, Roden- tia MARGOLIS in vitro, Rodentia WRBA intrauterine regeneration, Homo BERNDORFER jaws, experimental, Rodentia KNUDSEN karyotype, Homo BARGMAN limb, Homo DURAN YASUDA — , Homo, Rodentia KLEISS — , associated with spina bifida, Rodentia LENDON RALIS — , genetics & pathology, Homo — , mechanism, Rodentia Mammalia mechanism, part, nervous system, Rodentia microphthalmia, genetic, Rodentia LENZ KAMEYAMA LUTWAK NIE WOOLLAM GIROUD HOSHINO KAMEYAMA SHUPE WATTERSON musculoskeletal, Artiodactyla myeloschisis, Aves nervous system, experimental, Rodentia KNUDSEN nomenclature, Mammalia KLEISS oral cavity, exprimental, Rodentia KNUDSEN origin, development & transmission, Turbel- laria SCHILT STEPHAN osteochondromatosis, Perissodactyla SHUPE placental blood vessels, Homo BHARGAVA CHAKRAVARTI Polydactyly, Amphibia ROSTAND pulmonary vasculature, Homo ROBERTSON situs inversus, caused by defects & external factors, Urodela WOELLWARTH skeletal, caused by locoweeds, Artiodac- tyla SHUPE — , epidemiology, Homo TANAKA spina bifida, Homo DURAN — -, Rodentia HOSHINO MURAKAMI ,t experimental production, associated limb & renal defects, Rodentia LENDON RALIS urogenital system, Homo DURAN — — , gene-conditioned, Rodentia GUMBRECK vascular changes in digestive system, Rodentia MARSK — system, brain & head, Rodentia BUGGE KNUDSEN vertebral column, Aves STRUDEL MALPIGHIAN TUBULES see Excretory system MAMMARY GLAND see Gland(s) (exocrine) MAST CELLS see Bone marrow; Connective tissue MATERNAL EFFECTS see Genetics MATERNAL INHERITANCE see Genetics MATHEMATICS see Theoretical biology MATURATION see Egg(s) MEIOSIS see Egg(s) see also Oogenesis; Spermatogenesis MELANIN see Pigment(ation) see also Melanophore(s) MELANOPHORE(S) see also Neural crest; Pigment(ation) behaviour, hormonal influences, Anura BYTINSKI — in skin, factors involved, Aves, Rodentia REAMS cell affinities, time-lapse cinematography, Urodela BRICK — surfaces, genetic control, Urodela BRICK cutaneous, disappearance in juveniles, Teleostei MORI determination, molecular, Urodela BRICK differentiation, causal biochemistry, Urodela WILDE effect of hormones, Rodentia SPAZIANI tissue environment, Aves, Rodentia REAMS melanin formation, gene interaction, Rodentia PIERRO — synthesis, regulatory mechanisms, Aves, Ascidiacea WHITTAKER ( biochemistry, Anura BROWDER pigment granules, formation, Teleostei BEREITER tyrosinase, multiple forms, genetic regulation, Rodentia QUEVEDO MERISTEMS see Plant embryology & morphogenesis MEROGONES see Genetics; Hybrid(s) MESENCHYME differentiation in vitro, Ascidiacea SALA endo- & ecto-, cytochemistry, electron micros- copy, Urodela FINNEGAN limb, normal & mutant, behaviour & diffe- rentiation, Aves FLINT mesoglea, Hydrozoa LENHOFF primary cells, electron microscopy, Echinoidea MESODERM see Embryology (experimental); Embryology (general & descriptive) MESONEPHROS see Kidney(s) METABOLISM (general) see also Energy; Respiration Aves Ca, hormonal regulation, Aves carbohydrates, embryonic diapause, Anostraca control in germ cell differentiation, Mammalia early embryonic tissues, Aves — post-implantation stage, in vitro, Rodentia UEMURA NABER THESINGH CLEGG BISHOP McKENZIE GUNBERG 284 eggs, Mammalia BIGGERS STERN — & embryo, Gastropoda GEILENKIRCHEN , Orthoptera HANSEN egg maturation, Echinodermata, Urodela FICQ electrolyte, heart, Aves KLEIN embryo, Amphibia, Echinoidea TENCER end-products, embryo & larva, Anura ARIMA fetus & placenta, Artiodactyla NIXON glycolysis, Anura DEL RIO — , pentose phosphate & citric acid cycle, egg & embryo, Amphibia PETRUCCI in vitro, Rodentia WRBA macromolecules, function in tissue regene- ration, Decapoda GRAHAM SKINNER neonatal, Artiodactyla, Homo GEBHARDT of early embryo, Axes REPORTER oogonia & oocytes, Primates, Rodentia BAKER pathways, morphogenesis, Mammalia WEGMANN respiratory, Anura LEGNAME METAMORPHOSIS adenohypophysis, histochemistry, Anura Ascidiacea biochemistry, Anura blood antigens, Hymenoptera calcification, Anura REYNOLDS BURIGHEL SPIEGEL LENSKY PILKINGTON carbohydrate metabolism, effect of hormones, Amphibia FRYE cell death, role of lysosomes & hormonal control, Anura, Hemiptera GOLDSMITH — differentiation & proliferation, autoradio- graphy, Anura DOURNON collagen deposition, Anura REYNOLDS comparative study, Amphibia DENT Cyclostomata BAXTER Decapoda RICE Diptera EMMERT Echinoidea D'ASARO effect of artificial weightlessness, Anura BRIEGLEB TEUCHERT food, part, hormonomimetics, Coleop- tera, Diptera LEVINSON hormones, Coleoptera, Diptera SCHMIALEK & analogs, Insecta STAAL — — inhibitors of protein synthesis, Anura KLEINLOGEL WEBER juvenile hormone, Insecta SCHOONEVELD — on protein synthesis, ribosomes, RNA, Lepidoptera WYATT — on regeneration power of nervous system, Anura FILONI electron microscopy, Anura SPIEGEL , Anura, Ascidiacea WATANABE endocrine control, Anura ETKIN , Decapoda HUBSCHMAN endocrinology, Anura HANAOKA epidermal gland, in vivo & in vitro, Anura GIRARD erythropoiesis, immunology, Anura INGRAM excretory system, Anura CAMBAR GIRARD Gastropoda FRETTER head, functional development, Anura JONGH hematopoiesis, Anura SALVATORELLI hemoglobin switch, Anura DAN — — , genetic control, Anura KAJITA SHUKUYA TORII hemolymph, proteins, Hymenoptera LENSKY hormonal control, Diptera POSTLETHWAIT , cellular aspects, Lepidoptera OBERLANDER — regulation, Insecta LAUFER hormones, normal & abnormal, Lepidop- tera WOLBERT hydrolytic enzymes, Anura FORTAK SOPINSKI Hymenoptera SCHMIDT hypophysis hormones, identification, Anura DERBY hypothalamo-pituitary-thyroid axis, Urodela PRAHLAD induction, Ascidiacea OKA — by bacteria, Hydrozoa MULLER — , external, Gastropoda HADFIELD Insecta NUESCH isozymes, changes, Anura KAJITA SHUKUYA larval settlement, Polychaeta KNIGHT lunar periodicity, Diptera NEUMANN metamorphic competence, early, induced by thyroid hormones, biochemistry, Anura TATA Mollusca D'ASARO morphogenetic role of endocrines, Amphibia NOWAKOWNA SEMBRAT myofibrils & sarcotubules, Diptera BEINBRECH neoteny, influence of light & high temperature on development, Urodela BRIEGLEB — , partial, Anura JURAND physiology, Diptera ROCKSTEIN — & biochemistry, Diptera, Lepidop- tera SHAPPIRIO Polychaeta BERRILL CAZAUX protein & RNA synthesis, role of ecdysone, Diptera SEKERIS — metabolism, endocrinology, Lepidop- tera COLLN — regulation, Crustacea, Insecta LAUFER pupa, diploid drones, reproductive organs & spermatogenesis, Hymenoptera WOYKE regeneration, role of hormones, Urodela MANNER retinal changes, Anura HOLLYFIELD role of electrolytes, Amphibia BURKART skeleton, electron microscopy, Anura KEMP skin, with & without extra thyroid hormone, Anura BOVBJERG tail, collagen fibre resorption, Anura ITO thyroid-induced, biochemistry, tissue sensiti- vity, Urodela PRAHLAD — LTH interaction, Urodela GONA thyroxine & RNA synthesis, Anura RYFFEL SCHIBLER WEBER — induced, Anura TATA — , local action, Anura KALTENBACH — sensitivity, genetics, Urodela TOMPKINS — , uptake & tissue localization, Anura REYNOLDS Thysanoptera HEMING tissue breakdown, biochemistry & neurophysio- logy, Lepidoptera LOCKSHIN — culture studies, Anura NIIZIMA — involution, Anura WEBER — response & control of sequence, Anura KOLLROS Urodela FANKHAUSER METANEPHROS see Kidney(s) METAPLASIA esophagus, regulating mechanism, Aves, MOTTET LOPASHOV SOLOGUB medusae buds, Hydrozoa SCHMID METHODS (& equipment) see also Rearing methods MICROCINEMATOGRAPHY asexual reproduction, Porifera EFREMOVA cells, contacts & movements, Anura, Aves, Teleostei TRINKAUS cleavage pattern & gastrulation, Anura, Urodela BOTERENBROOD HARA cytoplasmic inclusions, myoblast, speed of movement, Rodentia PARSONS dorsoventral gradient, origin in egg, Amphibia HARA embryonic axial organs, Aves MENKES epiboly, Teleostei BETCHAKU TRINKAUS fertilization, Rodentia KRAICER SHALGI morphogenetic movements, Aves SPRATT & tissue differentiation, Rodentia DEUCHAR , heart primordium, Aves DeHAAN — — , marginal tissue, Aves SCHLESINGER Nematoda GUERRIER nerve cells, brain & sense organs BREIPOHL neural induction, Anura TARIN normal development, Aves LUCEY nuclear transfer technique, Amphibia LUCEY spiral cleavage, Invertebrata GUERRIER time-lapse, cell affinities, melanophores, Urodela BRICK Homo eye tissues, Teleostei 285 MICROCINEMATOGRAPHY (contd.) — — , cleavage, chromosome elimination, Diplera CAMENZIND ULRICH , early stages, Aves SANDOR , keratinization, Teleostei BEREITER — — , regeneration blastema, Turbel- laria BETCHAKU — — , specific ultrastructures, early stages, Diptera WOLF MINERALS see also Ions; specific minerals Au, placental transfer & distribution in fetus, Rodentia SUDARWATI Ca & Fe, localization, Artiodactyla, Aves, Homo LHOTKA — , fertilization, Echinoidea NAKAZANWA — metabolism, Mammalia SCHRYVER — transport in shell gland, endocrinology, Aves HEERSCHE calcification, Anura PILKINGTON scales, Teleostei KREJSA MITOCHONDRIA see Subcellular components MITOSIS see also Antimitotic agents; Cell(s)-division; Cleavage; Growth factors amitosis, ultrastructure, Vertebrata PEHLEMANN apparatus, Echinodermata, Echiuroidea SAWADA — , as a motile system, Echinoidea KIEFER — in eggs & embryos, Echinoidea IVERSON binucleate cells, Aves BARASA central nervous system, Amphibia BAFFONI centriole replication & separation, Echinoidea HARRIS chromosomes, Amphibia NARDI contact inhibition, cells in vitro STEINBERG control, Anura, Urodela BALLS MONNICKENDAM correlation with cell death, Rodentia ORLOVA cortical contractile protein, Echinoidea SAKAI cycle, relation to nuclear function & RNA, early stages, Echinoidea, Teleostei, Urodela ROTT developmental instructions, theoretical study L1NDENMAYER early development, Teleostei KIRCHEN effect of ultracentrifugation BEAMS embryonic tissue, effect of 3H-thymidine, Aves KOSIN endo-, Diptera FOSKET epithelia, relation to development & main- tenance, Rodentia WALLS imaginal disc, DNA, Diptera VIJVERBERG limb regeneration blastema, various treat- ments, Urodela HE ARSON liver parenchyma, regeneration, Roden- tia BERTALANFFY mechanism, in vitro, Echinodermata KANE neoplastic cell populations, Roden- tia BERTALANFFY peripheral nervous system, Amphibia FRATELLO primary induction, Urodela KAWAKAMI proliferation, Aves CAMERON — & cell cycle, effect of differentiation, Urodela BRUGAL — before & during metamorphosis, auto- radiography, Anura DOURNON — , effect of cytosine arabinoside, Rodentia BERTALANFFY — , genetic control, Rodentia KONYUKHOV SAZHINA — , kinetics & differentiation, Amphibia CHIBON regulation, Echinoidea CZIHAK — , Insecta POHLEY — , intercellular interactions & synthesis, Aves, Rodentia SALAMATINA TUMANISHVILI relation with differentiation, skeletal muscle & mammary gland, Aves, Rodentia STOCKDALE spindle, cytochemistry, Diptera MATUSZEWSKI transhydrogen catalyzation between cell cortex & mitotic apparatus, Echinoidea SAKAI MONSTROSITIES see Malformations MORPHOGENESIS see also Culture; Development; Embryology; Plant embryology & morphogenesis; Tissue culture; Unicellular organisms adult, effect of x-rays, Polychaeta arm formation, larvae, Echinoidea SOLBANI FINNEGAN LARRIVEE cell affinity changes, Amphibia GRUNZ — & tissue migrations, Hydrozoa DIEHL cellular basis, Aves WOLPERT control, salivary gland, in vitro, Roden- tia LAWSON disruption by hormones, Diptera ADAMS early, subcellular changes, Aves GALLERA NICOLET effect of juvenile hormone, Insecta SCHOONEVELD nucleic acid analogues, Diptera RIZKI puromycin, heat-shock & Li, Gastropoda BOON — ' — spermine, in vivo & in vitro, Aves BUTROS epiboly, electron microscopy, Teleostei THOMAS — , , cytochemistry, cinematography, Teleostei BETCHAKU TRINKAUS histochemistry, Aves GOFF — , in vivo & in vitro, Aves DOMINICI in cell cultures, Homo ELSDALE interactions between cell types, Porifera KEMP metabolic gradients, Echinodermata, Hydrozoa BELOUSSOV morphogenetic agents, action on cell behaviour, Aves WESTON , oogenesis & early stages, auto- radiography, Diptera SCHWALM movements, Amphibia NAKAMURA — , Gastropoda SATHANANTHAN — , Teleostei BALLARD — , adhesion & shape, Hydrozoa CAMPBELL — & cell contacts, Echinoidea GUSTAFSON — , blastoderm expansion, Aves DOWNIE — , cellular specificities responsible for, Aves, Rodentia BURDICK — , cinematography, embryo in vitro, Rodentia DEUCHAR — , correlation with electric fields, blastula, Anura KOSTELLOW MORRILL — , early stages, Orthoptera VOLLMAR — , , effect of macrophage migration inhibitors, Aves TAYLOR — , electron microscopy, Araneida SEITZ — , — — , metabolic inhibitors, Aves MANASEK — , experimental study, Anura, Aves, Teleostei TRINKAUS — , gastrulation & neurulation, Anura GOODWIN — , heart primordium, Aves DeHAAN FORET — , marginal tissue, microcinematography, Aves SCHLESINGER — , migration between germ layers, role in differentiation, Aves AZAR — , organ primordia, Aves STEDING — , role of cell surface properties, Aves RAO — , , Aves, Rodentia COLLINS — , time-lapse microcinematography, Aves SPRATT — , ultrastructure, histochemistry, Anura BAKER palatal fusion, epithelial breakdown, Mammalia VERRUSIO Phasmida BART postnatal, experimental study, Lago- morpha YARDIN — , role of posture, Rodentia FANGHANEL SCHUMACHER potencies, iris, Amphibia EISENBERG — of somatic cells, Porifera NIKITIN regeneration, Nemertea BIERNE — , Urodela STOCUM — in vivo & in vitro, Oligochaeta MARCEL relation to cell movements, Hydrozoa BRAVERMAN — — protein synthesis, tracer studies, Echinoidea GEZELIUS role of cell adhesion, Aves, Rodentia ROTH motility, Anura, Aves IZZARD & mesoglea, Hydrozoa SHOSTAK death, Aves SAUNDERS — — cyclic nucleotides KONIJN — — individual cell types, Hydrozoa DIEHL 286 tissue growth, Anura, Aves WURMBACH shaping of epithelium, forces, Amphibia, Hydrozoa BELOUSSOV somites, Anura BURGESS starving animals, Turbellaria TOKIN synthesis & role of mesoglea & perisarc, Hydrozoa DIEHL MORPHOGENETIC FIELDS see Embryology (experimental); Regeneration (traumatic) MORTALITY (embryonic, fetal) see Pathology MORULA see Cleavage MOSAICISM (genetical) see Genetics MOTILITY see Behaviour; Cell(s)-movements; Morpho- genesis; Tissue culture MOTOR END PLATES see Nerve(s) MOULT(ING) cycle, hemocytes, Lepidoptera LAI-FOOK — , nucleic acid metabolism, Crustacea SKINNER — , relation to ecdysone, Decapoda SPAZIANI effect of x-irradiation, Lepidoptera COULON endocrinology, Cladocera ZAFFAGNINI fluid resorption & protein composition, Hymenoptera LENSKY Insecta POHLEY Reptilia LYNN Teleostei KREJSA MOUTH see also Pharynx causal study, Anura CUSIMANO cleft lip, Rodentia LETOUR , effect of maternal & environmental factors, Rodentia FRASER , genetics & effect of face shape, Rodentia TRASLER , relation to environmental factors, Rodentia KALTER & palate, Artiodactyla, Carnivora SHUPE , drug induced, experimental study, Mammalia STEFFEK , genetic & environmental factors, Homo, Rodentia JOHNSTON — palate, cytoplasmic factor & biochemical mutant, Rodentia VERRUSIO , experimental study, Lagomorpha, Rodentia WALKER foliate papillae, trophic influence of nerve, Lagomorpha FILOGAMO induction & organogenesis, in vivo & in vitro, Urodela CAPURON maxillary bud, chitinogenic celle, Heterop- tera PINET oro-facial malformations caused by pyrime- thamine, Mammalia COLEMAN palate closure, role of tongue, Rodentia ROSS — , experimental study & pathogenesis, Mammalia STEFFEK — , fusion, cellular events, part, death, Mammalia VERRUSIO — , glycosaminoglycans, composition & effect of teratogens, Rodentia JACOBS — , morphogenesis, Homo, Rodentia HARRIS WILDE — , normal & cleft, histochemistry, in vitro, Homo, Rodentia POURTOIS — , — , uptake of tritiated thymidine, Rodentia COLEMAN — , — , role of sulfated mucopoly- saccharides, tracer study, Rodentia COLEMAN — , secondary, Rodentia DOSTAL sense organs in mouth parts, Heteroptera PINET tongue, Homo, Rodentia GASSER — , vascularization, Homo KLEISS MUCOPOLYSACCHARIDES see Carbohydrate(s) MULLERIAN DUCT epithelium, antigens, Rodentia FORSBERG mechanism of degeneration, Chelonia, Lacertilia PIEAU RAYNAUD regression, organ culture, Aves LUTZ MULTIPLE BIRTHS see Twins MUSCLE(S) actin & myosin synthesis in somite, Aves ALLEN anal sphincter, Homo JIT autoradiography, immunology, Aves Rodentia LANGMAN Aves OKAZAKI blood vessel wall, Homo NAKAYAMA chemistry, Aves LOVE complexus, effect of hypophysectomy, Aves WATTERSON contractile proteins, Homo, Rodentia JOHN cytological changes after injury, Urodela DECK degeneration & development, electron micros- copy, Anura MUNTZ development & teratogenesis, Rodentia NOACK differentiation, immuno- & biochemistry, Anura, Aves HAYASHI HIRABAYASHI — , regulation in vitro COLE dystrophic & normal, regeneration, Rodentia SCHMIDT effect of paralysis & amniotic pressure, Aves SULLIVAN electrophysiology, Rodentia, Urodela GARGOUIL endocrine regulation of metabolism, Aves LOVE flight, aging, morphology & physiology, Diptera BAKER — , effect of hormones, Coleoptera KORT head, Ophidia SMIT histochemistry, Anura, Rodentia MESSAGE in vitro, influence of electrophoretic fractions of specific primordia & cells, Urodela WILDE informational macromolecules, Echinodermata, Vertebrata WILDE Mammalia OKAZAKI mitochondria, Artiodactyla LEESON motor end plates, Aves DRACHMAN , Homo, Rodentia NAKAYAMA myoblasts, cytochemistry, electron micros- copy, Urodela FINNEGAN — , cytoplasmic inclusions, speed of move- ment, Rodentia PARSONS — , differentiation & movement, Cestodes OGREN fibroblast relationship, monolayer culture, Aves McKENZIE — , normal & dystrophic, nucleolus & RNA, Aves, Homo, Rodentia JANS ROSS — , , ribosomes & nucleolus, Aves, Homo, Rodentia MOORE — , skeletal, ultrastructure, Aves BAKER myofibrils & saicotubules, Diptera BEINBRECH myogenesis, Amphibia KIELBOWNA — , Anura BURGESS — , genetic control, Diptera WRIGHT — in vitro MESSAGE myogenic cells, ultrastructure, biochemistry, part, transcription & translation JONES myotube formation in vitro, Aves NISHIZU neuro-muscular association, selectivity, Anura, Blattariae VANABLE interactions, Rodentia FAMBROUGH physiology, Vertebrata SHAH prenatal development, Homo CIHAK DYLEVSKY GRIM protein, Aves HERRMANN regeneration, myofibrillogenesis, Blat- tariae BULLIERE — , part, minced fragments, Amphibia, Rodentia CARLSON reinnervation, Teleostei, Urodela MARK sarcomere organization, ultrastructure, Artiodactyla, Aves ALLEN skeletal, differentiation in vitro, biochemistry, Aves COLEMAN — , — , role of DNA synthesis & cell division, Aves STOCKDALE — , early differentiation, Homo STRAUSS — , electron microscopy, Homo HOLLINSHEAD — , ultrastructure, Aves FISCHMAN 287 MUSCLE(S) (contd.) smooth, Vertebrata MacRAE sphincter cloacae, derivatives, Artio- dactyla HARTMAN striated, differentiation, causal biochemistry, Urodela WILDE — , electron microscopy, Aves, Gastropoda, Orthoptera, Teleostei TAHMISIAN structure, Homo, Rodentia PUZANOVA — , comparative study, Anura MUNTZ trophic influence of motor neurons, Aves, Mammalia DRACHMAN umbilical sphincter, Lagomorpha TAVERNE MUTAGENIC AGENTS nucleic acid analogues, Diptera RIZKI MUTANT(S) see also Gene(s); Phenocopies abnormal tissues, electron microscopy, Rodentia JOHNSON ac/ac, histology, biochemistry, Logo- „„„„._,_, morpha SHEPARD affecting endocrine & reproductive physiology, Diptera DOANE — eye & lens, Rodentia CAMPBELL ' CLAYTON & skeleton, Rodentia KONYUKHOV SAZHINA development, Rodentia ZWAAN pigments, dosage compensation, Diptera SMITH — fat cells, electron microscopy, Diptera RIZKI — lipid & carbohydrate metabolism, Diptera DOANE — oogenesis, cytology & histochemistry, Diptera HOIi9EJ71S — spermatogenesis, Rodentia BRYAN auxotrophic, Diptera VYSE behavior, Urodela TOMPKINS blindness, development, genetics & effect of corticoids, Rodentia STEIN brain biochemistry, Rodentia JOHNSON cellular adhesion, movement & degene- ration, AveS CTOTKT circling genetics, Rodentia STE1N, collection, Diptera, Hemiptera BRYANT creeper, chondrogenesis, genetic control, Aves ELMER crossing over, somatic, Diptera BREUGEL development of characters, effect of environ- mental factors & selection, Diptera SCHARLOO dwarf, genetic determination & development, Nematoda BR.^ electron microscopy, Diptera ^^ PERRY endocrine system, Diptera SCHNEIDERMAN eye colour, maternal effect, Polychaeta FISCHER eyeless-dominant, effect on eye disc & ■ovrK,f, neuroendocrine system, Diptera ARKING female-sterile, genetics & ultrastructure, Diptera GOTE££ , oogenesis, Diptera MOHLER t ovary, phenogenetics, Diptera BENDER genetics, gynogenesis, Anura RICHARDS homeotic, action mechanism, „™™,a™ Diptera POSTLETHWAIT — , determination, Diptera POSTLETHWAIT — , genetics & physiology, Diptera OUWENEEL — , temperature-sensitive, imaginal disc, Diptera SANDERS hr, Re, sa, developmental genetics of hair growth phases, Rodentia CHASE inner ear, developmental genetics, Rodentia DEOL intercellular communication, Diptera SCHNEIDERMAN l(2)me, enzymes, Diptera £U 1BLI lampbrush chromosomes, urodela LALKUiA lethal, Aves EDE — , affecting metamorphosis, Diptera ARKING — , developmental abnormalities, Diptera SCRIBA — , embryonic, Diptera FULLILOVE — , — , temperature sensitivity, Diptera WRIGHT — , grey, Rodentia HOLLINSHEAD — , non-autonomous, Diptera BRYANT — , prepattern, Diptera BRYANT — , zygotic, clonal behaviour, imaginal disc, Diptera RIPOLL lozenge, suppression & enzyme activity, Diptera SMITH Lp/Lp, in vitro culture, tracer studies, Rodentia STEIN mitotic, cytology & development, Aves BLOOM neuroendocrinology, Rodentia JOHNSON neurological, changes in brain proteins, Aves FRIEDMAN neuromuscular, Rodentia McNUTT nucleic acids, Diptera KUBLI pattern formation, Diptera SCHNEIDERMAN pigmentation, developmental genetics, Rodentia DEOL polydactylism, ectrodactylism, Amphibia ROSTAND — , pattern formation, phenocopy & inter- action with TEM, Rodentia KOCHER scalloping, wing development, Diptera SANTAMARIA semi-lethal recessive, temperature sensitivity & maternal effect, Urodela BEETSCHEN tail-labyrinthine, Rodentia McNUTT temperature sensitive, Diptera SCHUBIGER torpid, development, Rodentia DUNG variegation, Rodentia HOLT white-mottled, cytological differentiation, Diptera BREUGEL W-series, hematology of congenital anemia, Rodentia SELLER MUTATION see Genetics MYELIN(IZATION) see Central nervous system MYOBLASTS see Muscle(s) MYOGENESIS see Muscle(s) MYOSIN see Muscle(s) MYOTOME see Somite(s) NASAL ORGAN see Olfactory organ NEMATOCYSTS differentiation from interstitial cell, Hydrozoa BODE NEOPLASIA see Tumours NEOTENY see Metamorphosis NERVE(S) (& innervation) fibre, giant, Cephalopoda SELVERSTON — in vitro, effect of cytostatic agents, Aves BARASA — , ultrastructure, limb, Anura PRESTIGE glossopharyngeal, trophic influence on foliate papillae, Lagomorpha FILOGAMO heart, Rodentia SCHIEBLER — , cholinesterase & mono-amine, Homo, Mammalia NAVARATNAM innervation, hip joint, Homo DANDRIEU motor, regeneration, Teleostei, Urodela MARK — , trophic influence in muscle development, Aves, Mammalia DRACHMAN — end plates, Aves DRACHMAN neurogenesis, relation to behaviour, Amniota DECKER neuro-muscular interactions, „_„,„ Rodentia FAMB££E?5 neuropharmacology, Aves DRACHMAN optic, flow inhibitors, effect on differentiation, Aves MARCHISIO — , functional regeneration, Anura GAZE — , protein transport, Aves MARCHISIO — , rudiment transplantation between varieties with & without eyes, Teleostei BRI„t peripheral, regeneration, Aves, Carnivora ERHAR1 pneumogastiic system, experimental study, Aves LEMEZ regeneration, olfactory system, ultrastructure, Teleostei WESTERMAN 288 role in limb regeneration, Urodela THORNTON proliferation pattern, limb regeneration blastema, Urodela HEARSON sciatic, myelin, Aves MEZEI sensory, integration with end organ, Anura STEINBERG structure, comparative study, Anura MUNTZ terminals, motor & sensory, Homo DAIKOKU NERVE CELLS brain & sense organs, electron microscopy, autoradiography, tissue culture, cinema- tography BREIPOHL — , dendrites & synapses, Rodentia FELDMAN DNA synthesis, cytoplasmic control, Rodentia JACOBSON electrical activity, relation with EEG, Aves CORNER fibres, effect of polarity, Amphibia HIBBARD — , protein, Aves, Cyclostomata FILONI growth, Amphibia FRATELLO — & differentiation, Vertebrata BAFFONI — cones in vitro, Anura COOKE histogenesis, Rodentia SMART interstitial, pyramid, ultrastructure, Mammalia DAS limb, differentiation, autoradiography, Anura PRESTIGE maturation, role of protein & other factors, Aves MARCHISIO membrane differentiation, Rodentia FILOGAMO microtubules, biochemistry FRIEDKIN neuroblast & glioblast, effect of x-rays & hyper- baric oxygenation, Mammalia LIERSE — , effect of electromagnetic radiation, organ culture, Orthoptera COLE — , grafted in adult spinal cord, Rodentia BOSSY — , olfactory placode, histochemistry, electron microscopy, Aves ROBECCHI — , reaggregation, new synapse STEFANELLI — , spinal ganglion, electron microscopy, Aves PANNESE neuroblastoma in vitro, neurotubules, bio- chemistry & role in differentiation, Rodentia ROSENBAUM Nissl bodies, Aves, Lagomorpha DREYER processes, biochemistry, in vitro, Aves BRAY Rohon-Beard cells, Amphibia MARINI spinal ganglia, Rodentia YAMADORI synaptic complexes, retina, Carnivora, Rodentia HILD transplanted in brain, proliferation, migration, differentiation, Mammalia DAS NERVOUS SYSTEM see also specific components, neurotransmitters Anura KHAN Aves HAMBURGER biochemistry, myelinization, Mammalia WENDER cell physiology, Rodentia KOROCHKTN Cetacea PILLERI Collembola TYSZKIEWICZ cytochemistry, Rodentia KOROCHKIN differentiation, electrophysiology, in vivo & in vitro, Aves SUBURO — , genetic information, Urodela SALA — in vivo & in vitro, biochemistry, Aves TEITELMAN effect of ionizing radiation, Mammalia MULAREK WENDER magnetic field, Anura BONDI , Aves VENEZIANO NGF & pesticides, Amphibia, Teleostei WEIS — on regeneration, Urodela RZEHAK electron microscopy, Phalangida JUBERTHIE experimental embryology, Diptera CHIARODO , electron microscopy, culture, Aves ADLER — morphology, Rodentia KOROCHKIN genetically deficient embryos, Diptera POULSON genetics, developmental, Nematoda BRENNER glycogen pattern, Amphibia MARINI histoenzymatic architectonics, Mammalia WENDER histones, Artiodactyla, Primates KORNGUTH in vivo & in vitro, Blattariae LEVI lactate dehydrogenase isozymes, Teleostei WHITT malformations, teratogenesis, Rodentia GIROUD maturation, glutamine synthetase, Aves PIDDINGTON microsystems in vitro, Aves STEFANELLI morphogenetic role, Turbellaria TOROK morphology & electron microscopy, Cephalopoda FIORONI nerve fibres, regeneration, larval, Urodela BAFFONI neural tube, Anura HAUSER neuroglia, proliferation & migration, post- natal, Rodentia MARTY neuromuscular connection & disconnection, limb, Anura PRESTIGE neurophysiology of tissue breakdown, meta- morphosis, Lepidoptera LOCKSHIN neurotransmitters, effect of parathion, Aves MEINIEL normal & abnormal, in vitro, Diptera GATEFF peripheral, cellular growth & mitosis, Amphibia FRATELLO — , development & teratology, Rodentia SCHWEIGEL — , developmental mechanism, Urodela OHASHI — , in fetus, Homo GAMBLE Phasmida LOUVET regeneration, factors, Annelida BOILLY relation to behaviour, Aves, Marsu- Pialia OPPENHEIM eye, Lepidoptera WOLSKY RNA transcription, Lagomorpha, Rodentia CHURCH Rodentia DAS WECHSLER role in limb morphogenesis, Aves KIENY synapse between reaggregated neuro- blasts STEFANELLI — , development, enzymes, Aves GIACOBINI — , proteins, Artiodactyla, Primates KORNGUTH teratogenesis, Rodentia MONIE teratological effect of anti-brain anti- bodies, Aves FRIEDMAN tissue differentiation in vitro, Aves VARON NEURAL CREST autoradiography, Anura HERBERT cell migration & differentiation, interspecific grafts, Aves LE DOUARIN , tracer study, Urodela SALA — , pigment synthesis, melanin transfer, Aves KOECKE — , ultrastructure, Aves, Urodela JINNEROT contributions to face, Aves, Homo, Rodentia, Urodela JOHNSTON developmental genetics, Anura BROWDER differentiation, causal biochemistry, Urodela WILDE — , suppression & stimulation, Aves, Rodentia KOLLAR head, derivatives, experimental embryology, Urodela MICHAEL homotransplantation tolerance, Anura VOLPE in vitro, autoradiography, Anura ANDREW GABIE localization, migration & differentiation, auto- radiography, Aves CHEVALLIER migration & differentiation, Aves, Rodentia WESTON morphogenetic capacities & differentiation, Urodela CHIBON organ culture, Urodela WILDE pattern formation, Anura BAGNARA pigment cells, effect of thyroxine, in vitro, Anura GABIE removal, resulting in comb & beak malfor- mations, Aves LAWRENCE ultrastructure, Aves GONZALEZ NEURAL PLATE autonomous pattern formation, Amphibia WOELLWARTH determination, Anura ROSSI prosencephala part, pattern formation, Urodela BOTERENBROOD shaping, experiments & computer simulation, Urodela JACOBSON xenoplastic transplantation, effect on behaviour, Anura ANDRES NEURAL TUBE see Central nervous system NEURONS see Nerve cells 289 NEUROSECRETION ™tttt1=r autoradiography, Polychaeta MULLtK biochemistry & physiology, Coleop- tera SCHOONEVELD cellular activity cycle, Orthoptera EW^j development, Oligochaeta GIOVANNINI different sexual development stages, _„__.-_. Polychaeta HOFMANN effect of eyeless mutant, Diptera „ A£KING embryo, Oligochaeta Ml?Tcl?-«ci» i Orthoptera VlSSCMfcK epistellar body, Cephalopoda SACARRAO histology & histochemistry, Orthoptera EWtN hypothalamus-hypophysis, Axes MALAFKAUL morphological & physiological, Amphibia, Crustacea, Pisces ,nuwcr.M mutant, Rodentia JOHNpn£ relation with regeneration, Oligochaeta KUM role in development of androgenic gland, Crustacea . PAYLN , regeneration & differentiation of genital apparatus, Trematoda, Turbellaria GRASSO subcommissural organ, structure & funct'°nAxTTcxTT Homo, Mammalia L?SS?£J Turbellaria waJSS5a5 Vertebrata WATERMAN NEUROTRANSMITTERS see also Hormones adrenal medulla, organ of Zuckerkandl, Rodentia AR^£,SA2K adrenaline & nor-, Aves UIKAKJJ catecholamines & receptors, Aves, AlkTrTT,TIT1.T Rodentia MANUKHIN serotonin, central nervous system, ^TOIT *"*"* M^SS! GABA, effect on cortical somesthetic response, Lagomorpha, Rodentia ^tR^^tvit metabolism, enzymes, Aves GlACOBim monoamine, activity, heart, Homo>^TKr. A~~TAvr Mammalia NAVARA1^-^ — , median eminence, Rodentia ^i™*XV„ic EURENIUS — , sympathetic chain, Rodentia ARVJ£?^>j pineal organ, Vertebrata COLLIN role in early embryogenesis, Anura, _______.,, Fchinoidea BUZN1KOV Lcninoiaea MARKOVA serotonin, metabolism, Echinoidea TONEBY — , protection against teratogenic effects, Rodentia -S,MBRS synthesis, in vivo & in vitro, Aves TEITELMAN NEURULA(TION) Anura electron microscopy, Ascidiacea, „„„_„^ Urodela LO?BlS? latency period after induction, Aves GALLERA mechanism, Ascidiacea, Aves, Urodela JACOBSON morphogenetic movements, Anura GOODWIN NITROGEN excretion, tadpole, effect of prolactin, Anura ARIMA metabolism, enzyme systems, Anura JANSSENS NORMAL TABLES see Embryology (general & descriptive) NOTOCHORD Aves developmental changes, Rodentia NUCLEAR TRANSPLANTATION see Nucleus NUCLEIC ACID(S) see also specific nucleic acids; Nucleotides (& nucleosides) during development, Anura DECROLY early development, Anostraca, Echinoidea HULTIN , Gastropoda **£9 Echinoidea IVERSON effect on development & regeneration, Amphibia, Echinoidea WOLSKY endopolyploid nuclei, autoradiography, -„rfvr Diptera, Lepidoptera GILLOT KHAN JACOB JURAND fetal & postnatal development, ,.tA^A~A„,A Rodentia NAKAZAWA fibroblasts, contact inhibition, Aves HUMPHREYS hybridization, Amphibia GIORGI interaction with proteins, early development, Echinoidea IMMERS limb buds, epidermal & mesodermal cells, ,^iAT_ Chelonia, Laceitilia RAY?^AJi2 VASSE metabolism, Amphibia, Teleostei PAV?PAXu — , Anura SALLACH — , biochemistry, autoradiography, dcodv Lepidoptera T°™J — , effect of nuclease inhibitors, Aves ILMFLL — , egg, Rodentia TSA FTRJRi — maturation, Amphibia HANOCQ — , embryo, tracer studies, Echinoder- mata YANAGISAWA — , endocrine regulation, muscle, Aves LOVE — in differentiation, Amphibia FAUL^5 — , larval, Trematoda GILBIRJktct> moult cycle, Crustacea SK1NNLK —\ pre- & postnatal, Insecta KRISHNAKUMARAN mutants, Diptera Kmi7A neuroglia at pupation, Lepidoptera fifA oogenesis & early development, ^^r—^rrmwiv Arnvhibia NEDVIDbK AmPnma VILIMKOVA — , part. 5s RNA, Anura FORD quantitative cytochemistry, induction & differentiation, Vertebrata \Atii> relation with nuclear transplantation, ,_„__„ A^hibia Sl?dec!k role in primary determination & primary differentiation, Orthoptera SAUER synthesis after cortical lesions, Anura BRACHE1 — , blastocyst, delayed implantation, ~TTTVAQ Mammalia 5irJA^ f — , hormone action, Rodentia PRASAD — ' during development, Anura „Ji£xT?.T , early cleavage, Lagomorpha PETZOLDl — , effect of conditioned medium from dis- sociated morulae, Echinoidea BRACHET t hormones, postembryonic, Blat- tariae, Diptera SHAAYA — embryo, biochemistry, in vivo & in vitro, Echinoidea INFANTE — , larva, Diptera MATTINGLY — , polytene chromosomes, normal & infected larvae, Diptera PAVAN — , prevention by prolactin of hormone- _AXA induced metamorphosis, Anura „,- AJ,~T£ — , queens & workers, Hymenoptera REMBOLD — , regeneration, autoradiography, Oligo- chaeta MOUTON — regulation, early stages, Anura HONJO HORAK REEDER WU template capacity during development, Anura DECROLY transcription & translation, early stages, Echinoidea rIA?5££5 wing disc, Lepidoptera LArUNi NUCLEO-CYTOPLASMIC RELATIONS development, Amphibia HENNEN differentiation, Aves, Rodentia ^^nr^i-ik. early cleavage, Diptera ^ta^aV*t™ A — development, Amphibia NAKAMURA TAKASAKI embryonic differentiation, Echinoidea KINOSHITA. oocyte, Anura — , autoradiography, Anura pronucleus, Echinoidea somatic cells, Rodentia tracer studies, Echinoidea DE SILVA COLE LONGO SCHMIALEK GEZELIUS NUCLEOLUS see Nucleus NUCLEOTIDES (& nucleosides) acid-soluble, changes during development, Echinodermata YANAG BAWA — , in egg & sperm, Echinoidea ISONO AMP, cyclic, in bone, effect of PTH, „„__„_ Rodentia HEERSCHE — , — , role in action of gonadotropin, placenta, Homo CEDARD 290 — , — , role in morphogenesis KONIJN — , — phosphodiesterase inhibitor, chemistry & effect on development, Acrasiales GERISCH BUdR effect on lens crystallins, Aves PEARCE — , — — liver proteins, Rodentia MALPOIX — , morphogenesis, Amphibia BRACHET — , inhibition of differentiation, Anura, Aves FABIAN — , teratogenesis, Echinoidea, Rodentia SKALKO cyclic, role in morphogenesis KONIJN cytosine arabinoside, effect on cell develop- ment & proliferation, Rodentia BERTALANFFY genome organization, relation to developmental patterns, Insecta, Mammalia, Tunicata LAIRD nucleoside analogues, effect on cell diffe- rentiation in vitro, Aves COLEMAN poly-, dAT, effect on embryo, Diptera FORREST pyridine, action in development & diffe- rentiation KAPLAN synthesis, early stages, Anura SANCHEZ thymidine, tritiated, effect on mitotic activity, Aves KOSIN uridine & thymidine incorporation, germ cells, Aves CALLEBAUT NUCLEUS chromatin & DNA, stage-specific, Anura ROLLINS degeneration, eye lens, mathematics, Aves LEVER MODAK UPPULURI developmental changes, Anura DiBERARDINO differentiation, Anura KING DNA/size ratio in differentiating tissue, Anura LAVALLE — / somatic & germinal tissue, Anura LAVALLE — synthesis, use of exogenous DNA LURQUIN embryonic cells, radio-active labelling, Urodela CHIBON endopolyploid, nucleic acids, autoradio- graphy, Diptera, Lepidoptera GILLOT germ cell, composition, biochemistry & changes after fertilization, Echinoidea TERAYAMA germinal vesicle, juxta-nucleolar granules, elec- tron microscopy, Anura SALLES in organism & in vitro, Aves, Rodentia KRANTZ ions, inorganic, Diptera TROSCH karyomere formation in cleavage, effect on development, Echinoidea WOLFE morphogenetic function, Teleostei, Urodela IGNATJEVA nucleolar organizer, bristle cell, Diptera ROBERTSON nucleolus, Diptera BARR — , biochemistry, Echinodermata, Lamellibranchia VINCENT — formation, eleocytes, Polychaeta SCHROEDER — , function, Lagomorpha, Rodentia GULYAS — , germinal vesicle, Orthoptera KUNZ — , metabolism, development & gametogenesis, Anura WALLACE — , myoblast, Aves, Homo, Rodentia MOORE — , — , normal & dystrophic, Aves, Homo, Rodentia JANS ROSS — , oocyte, Anura DE SILVA — , — , Teleostei BOLOGNARI — , — , nucleoplasm, fine structure, RNA, DNA & protein metabolism, Amphibia MILLER — , — , ultrastructure & function, Anura JACOB — , oogenesis, Nemertea RUE — . — , cytometric, cyto- & biochemical study, Polychaeta STAGNI — repression in hybrids, Anura BLACKLER — , role in differentiation of blastodermic vesicle, Homo, Rodentia MARTTNEK — , virus induced tumour cells, Anura JACOB — , somatic & germ line cells, Amphibia NARDI — , structures, meiosis, Anura VAN GANSEN — , transcription, salivary gland, Diptera KRIDER oocyte growth, Aves Teleostei GAGINSKAYA protein, pattern, relation to gene activation, Diptera HELMSING ribosomal vesicles, fertilization, Echi- noidea BROOKBANK size & DNA content, Hydrozoa MELUCCI — , embryo, larva, adult & germ line, Ascidiacea, Gastropoda REZENDE SCHREIBER — — — — , postembryonic organogenesis, Gastropoda FALLIERI — in somatic & germinal tissue, Nematoda REZENDE transfer, haploid embryo cell lines, Anura FREED MEZGER transplantation, Anura CZOLOWSKA — , Coleoptera SCHNETTER — , chromosome replication in host, Amphibia KING — , differentiated lens cells, Anura ROBINSON — , differentiation, specific activities, Urodela SIGNORET — , film showing technique, Amphibia LUCEY — , gene expression, Anura SUBTELNY — , haploid & diploid, proteins, Anura LEGNAME MARIANO — in relation to antigenic development, Amphibia ROMANOVSKY SLADECEK nucleic acids, Amphibia NEDVIDEK SLADECEK — , interspecific, Amphibia ORTOLANI — into single blastomeres, Artiodactyla, Lagomorpha MOOR — , isogenic groups, morphology, biochemistry, histocompatibility, Anura VOLPE — , oogenesis, Amphibia, Chondrostei NIKITINA — , tumor cells, Anura McKINNELL uni- & multinucleolate oocytes, ribosomal gene amplification, Asteroidea, Echinoidea, Lamel- libranchia, Teleostei VINCENT NUTRITION (embryonic, larval, etc.) albumen of different breeds, effect on deve- lopment, Aves GOSHCHETELIANI Aves FRITZ NABER blastocyst, uterine proteins, Homo, Lago- morpha BEIER Carnivora BECK Chelonia FRITZ effect on digestive tract & pancreas, Amphibia LESTAGE embryonic growth, Aves BETZ metamorphosis & oogenesis, Coleoptera, Diptera LEVINSON evolution, Arachnida WEYGOLDT excess, effects on early development, Aves GOLDIE larval, Gastropoda FRETTER Marsupialia FRITZ maternal, effect on central nervous system & learning behaviour, Rodentia AUROUX — , — — embryonic fat metabolism, Aves DONALDSON morphology, Crustacea, Gastropoda, Malacostraca FIORONI preimplantation stages, Lagomorpha, Rodentia BENTYN CHOROSZEWSKA prenatal, effect on postnatal skull & organ growth, Lagomorpha, Rodentia FANGHANEL SCHUMACHER relation between mother & embryo, Rodentia ZIMMERMANN — to pleuropodia, viviparity & ovoparity, Blattariae STAY requirements for early morphogenesis & growth, Aves SPRATT Rodentia BECK yolk absorption, Teleostei YAMADA — , albumine & food-eggs, morphology, Gastropoda FIORONI OESOPHAGUS OESTROUS CYCLE see Reproduction OLFACTORY ORGAN Anura MICHAEL development, Aves WENGER experimental morphology, Teleostei BERTMAR induction, Urodela JACOBSON morpho- & histogenesis, Teleostei HAGBERG HANSSON nerve fibre regeneration, ultrastructure, Teleostei WESTERMAN nose, morphogenesis, Homo, Rodentia HARRIS placode, neuroblasts, histochemistry, electron microscopy, Aves ROBECCHI 291 OOCYTE see Egg(s) see also Gamete(s) OOGENESIS see also Gametes Acari Actinozoa Amphibia Arthropoda autoradiography, Rodentia basic proteins, Echinoidea biochemical mechanisms, Anura FEIERTAG PIJNACKER LOSEVA HUMPHRIES KING VAKAET BACKSTROM DENIS MAIRY WEGNEZ cellular interactions, biochemistry, Hemip- tera DAVENPORT Chordata GURAYA Collembola KRZYSTOFOWICZ constant-estrus, Rodentia SEGAL correlation of meiosis & vitellogenesis, Teleostei SAKUN cytochemistry, autoradiography, Aves, „_._,. Teleostei GAGINSKAYA — , — & electron microscopy, Diptera WATSON — , electron microscopy, Anura Sc?J£ — , Cladocera ZAFFAGNINI _, , Hydroidea STASN,i _ , Turbellaria GREMIGNI cytology, molecular, Anostraca, Hymen- optera CASS1DY degeneration of eggs, Amphibia cpoRNifl different breeds, comparative, »g*^CURASHVILI Diptera MATUSZEWSKI DNA, extrachromosomal, origin & function, Orthoptera c AVE — synthesis, Amphibia „ X\w£ HANOCQ , Anura ^CQ Echinoidea UAL effect of brain hormone, Polychaeta DHAINAUT food, part, hormonomimetics, Coleoptera, Diptera LEVINSON gonadotropins, Teleostei SAKUN hormones, Anura HANAOKA , Orthoptera PENER , ovarium & Bidder's organ, Anura GARDENGHI ZACCANTI — irradiation, Anostraca IWASAKI egg shell formation, role of vitelline cells, histochemistry, biochemistry, Platyhel- minthes ?• a xTccxt electron microscopy, Anura VAN/?c£!,,o>l , Ascidia, Mollusca, Oligochaeta MANCUSO , Echinoidea ENDO , Echiuroidea, Gastropoda, Sipunculoidea SAWADA - — , Homo LAGUCHEV , Homo, Mammalia, Urodela WISCHNITZER , Lepidopteta MIYA , Teleostei GOTTING & autoradiography, Polychaeta DHAINAUT & biochemistry, Echinoidea TSUKAHARA fertilizin synthesis, hormonal control, Polychaeta SCHROEDER follicle cells & ovum, electron microscopy & histochemistry, Rodentia MARTINEK , nuclei, growth regulation, Diptera MATUSZEWSKI gene activation, Anura, Echinoidea, Gastropoda DAVIDSON HOUGH , Urodela LACROIX genetic & cytological aspects, Diptera BROWN — control, Diptera KING giant animals, Phasmida PFLUGFELDER Hirudinea PASTISSON histochemistry, Echinoidea KOBAYASKI histology & histochemistry, Insecta KURIHARA histo-physiology, electron microscopy, Teleostei YAMAMOTO in vitro, Hymenoptera WENT information transfer from follicle to oocyte, Gastropoda RAVEN Mammalia PETERS meiosis, Homo, Rodentia POLANI — , nucleolar structures, Anura VAN GANSEN , template activity of chromatin, Anura FICQ metabolism, autoradiography, Asteroidea, ____ Amphibia FICQ morphogenetic agents, autoradiography, Diptera SCHWALM — information transfer, Diptera FULLILOVE morphology & physiology, Homoptera MOCHIDA mutants affecting, cytology & histocherrustry, Diptera HODGETTS — , female-sterile, Diptera MOHLER nucleic acids & subcellular particles, „_____ Amphibia NEDVIDEK. Ampmoiu VILIMKOVA , part. 5s RNA, Anura F2t\? nucleolus, Nemertea RUE — , cytometric, cytochemical & biochemical study, Polychaeta STAGNI nucleus transplantation, Amphibia, chon-„„^. . drostei NIKITINA oogonia, maturation, Mammalia „ WEGMANN oosome origin, Diptera MATUSZEWSKI oosorption, Hymenoptera m™ kriruv Phasmida PIJN£?S Primates BAK.LK protein metabolism, Amphibia FICQ , gene amplification, Coleoptera, Diptera SCHAFER — synthesis & transport, effect of hormones Insecta WYATT reserve substances, radio-isotope study, Insecta ENGELS ribosomal gene amplification, uni- & multinu- cleolate forms, Asteroidea, Echinoidea, Lamellibranchia, Teleostei VINCENT — proteins, Echinoidea COGNETT1 — RNA synthesis, Teleostei °n^r\ ribosomes, Anura o^tre^tD RNA, Hemiptera SCHELi££ ' WINTER — , electron microscopy, Anura THOMAS — synthesis, Echinoidea PIATIGORSKY , Lepidoptera ^W^r-c role of neural complex, Ascidiacea GEORGES vitellogenesis, Amphibia SPORNFTZ -, Coleoptera LAVERDURE -, Oligochaeta FAa§35l — , cytology, Anura DUMONT — , electron microscopy, Hydrozoa GLATZER — , histochemistry, electron microscopy, Coleoptera AGGARWAL vitellogenic proteins, effect of hormones, Coleoptera KORT OOPLASMIC SEGREGATION see Egg(s) ORGAN CULTURE adrenal cortex, Rodentia adrenals, endocrine activity, Homo, Rodentia ZAA^Y?,5 application to teratogenesis, Rodentia MONIE arteries, Aves GOTZOS bones, achondroplasia, Homo, Lago- mo;pha SHEfAS5 — , effect of hormones, Aves DAIMON ( & imidazol, Rodentia GAILLARD central nervous system, Aves JAMES LYSER combinations of organs, Rodentia CRACIUN PREDA digestive tract, Aves ^J9?T effect of hormones, Anura TATA endocrine control of differentiation, Lepi- doptera BERRY epidermal gland, metamorphosis, Anura GIRARD erythropoiesis, Aves INGRAM eye & skeletal abnormalities, „™.,»^», Rodentia KONYUKHOV — lens, biochemistry, ultrastructure, Aves FINNEGAN McLEAN morphogenesis & protein synthesis, control, Aves BRAVERMAN regeneration, effect of hypophysis, Urodela CONNELLY — , relation of ultrastructure & protein synthesis, Aves KVmiKHIDZE fallopian tubes, ovaries, Mammalia BIGGLKb fertilization, Rodentia K5£!<;E-£ SHALGI ROOS 292 genital tract, Aves LUTZ , effect of tumor, Rodentia POURREAU gonads, Anura FOOTE — , differentiation & intersexuality, Aves WOLFF — , endocrine activity, Homo, Rodentia ZAAYER — , larval, Coleoptera LENDER — , — & adult, Anura GARDENGHI ZACCANTI — , steroid & sterol synthesis, effect of HCG, Aves CEDARD GUICHARD heart, Anura BRIDE GOMOT — development, induction, Urodela FULLILOVE — primordium, effect of stimulants & depres- sants, Aves BUTROS imaginal discs, Lepidoptera OBERLANDER , genetic study, Diptera KURODA interaction between hypophysis, pineal gland & gonads, Rodentia LOMBARD kidney, Rodentia RAPOLA — , effect of Wolffian duct on mesenchyme, Aves MARTIN — , liver & heart, effect of aminoguanidine, Aves WATTERSON — ■, tubulogenesis, electron microscopy, Rodentia WARTIOVAARA larval organs, Insecta LENDER Lepidoptera LOCKSHIN limb bones, proportionate development, effect of thyroid, Aves LAWSON — bud, Aves GUMPEL , effect of hadacidin, Rodentia MILAIRE , gills, neural crest, Urodela WILDE — regeneration, cuticle deposition, Blattariae LEOPOLD liver, role of hormones, Aves BENZO — , yolk protein induction, Anura TATA lung, epithelio-mesenchymal interactions, Aves CARINCI mammary gland, Lagomorpha, Rodentia GOMOT PROPPER , effect of hormones, Rodentia RIVERA mesoderm, axial, Aves, Urodela FINNEGAN mesonephros, Aves AMADO — ' components, endocrine & neural control, Rodentia ROOS morphogenesis, histochemistry, Aves DOMINICI neuroblast, effect of irradiation, Orthoptera COLE organogenesis, Blattariae BULLIERE ovary, protein synthesis, Anura FORD palate, normal & cleft, histochemistry, Homo, Rodentia POURTOIS pineal organ, Aves AMONS placenta, hormonal activity, Rodentia ZAAYER primordia, Cephalopoda MARTHY — , Rodentia SCHWEISTHAL — , comparative study, Homo, Rodentia YASUDA — of genital tract, Lacertilia, Ophidia RAYNAUD regenerating organs, Turbellaria ZILLER retina, sensory cells & synapses, Carnivora, Rodentia ' HILD salivary gland, morphogenetic & growth control, Rodentia LAWSON skeleton, morphology & biochemistry, Mammalia SCHRYVER skin derivatives, inductive interactions, Aves, Rodentia KOLLAR — , epithelio-mesenchymal interactions, Aves CARINCI sub-maxillary gland primordium, Rodentia RAYNAUD tail resorption, biochemistry, hormones, Anura DERBY teeth, inductive interactions, Rodentia KOLLAR testicular interstitial cell tumours, Rodentia POURREAU thymus, Aves FOOTE ultimobranchial body, Aves THESINGH ORGANIZATION (pattern formation) see also Induction autonomous, neural plate, Amphibia WOELLWARTH biological patterns, computer simulation COWE WADDINGTON bristle pattern, asymmetrical, Diptera VREEZEN cell orientation, epithelium, Rodentia WALLS cellular basis, Amphibia, Aves Hydrozoa WOLPERT colony pattern & growth, systems analysis & computer simulation, Hydrozoa BRAVERMAN cutaneous nerve pattern, effect of x-rays, Aves M AUGER dorsal skin, Anura BAGNARA embryonic tissues, Aves DeHAAN feather, Aves KUHN — patterns, Aves SENGEL ', role of axial structures & ectoderm, Aves MAUGER fields of information, pattern formation, Amphibia COOKE genetics, Diptera KROEGER STERN head, bilateral symmetry, Gastropoda VERDONK Hydrozoa WEBSTER imaginal discs, Diptera URSPRUNG — — , in vivo culture, Diptera OUWENEEL limb, Blattariae WEBSTER mutant, Diptera SCHNEIDERMAN pattern changes, comb, Aves LAWRENCE — formation, feathers, role of epidermis & dermis, Aves NOVEL prepattern, mutants, Diptera BRYANT prosencephalic part of neural plate, Urodela BOTERENBROOD regional determination, pterylae & apteria, Aves KIENY rhombencephalic & anterior spinal cord region, Aves WIERTZ substance affecting, Hemiptera BRYANT ORGANIZER see Induction ORGANOGENESIS see also Organ culture; specific organs Aves HAMILTON biochemistry KISCHER Echinoidea D'ASARO effect of isogenic subcellular tissue fractions, Rodentia STERN TEM, Rodentia KOCHER electron microscopy, Araneida SEITZ endodermal organs MIKAMI fetus & newborn, Homo SZAMBORSKI growth control, Mammalia ARGYRIS Homo MENKES homologous inhibition by tissue extracts, Aves THOMPSON in vitro, comparative study, Homo, Rodentia YASUDA , ultrastructure & autoradiography, Blattariae BULLIERE Lagomorpha GOTTSCHEWSKI ZIMMERMAN N Mollusca D'ASARO normal & pathological, histochemistry, Homo CZYZEWSKA organ size, control, Aves HALL postnatal, role of posture, Rodentia FANGHANEL SCHUMACHER proteins, soluble, Rodentia SERMAN SKREB Rodentia GOTTSCHEWSKI ZIMMERMANN role of enzyme induction in growth control, Rodentia ARGYRIS stimulation by tumours, Mammalia ARGYRIS OSSIFICATION see Skeleton OSTEOGENESIS see Skeleton OVARY see also Gonad(s) cell dynamics & function, Rodentia PETERS comparative histology, Mammalia DUKE differentiation, Coleoptera LA VERDURE electron microscopy & histochemistry, Rodentia MARTINEK — — , autoradiography, cell dynamics, Rodentia BYSKOV , metamorphosis, Anura VAN GANSEN female-sterile mutants, phenogenetics, Diptera BENDER follicle, Artiodactyla ROBERTSON — atresia, regulation, Chondrostei, Teleostei FALEEVA 293 OVARY (contd.) — epithelium, effect of antigens, Aves KURULASHVILI — , histochemistry & endocrinology, Homo, Rodentia LUDWIG — , RNA transport, Homoptera MAYS follicular fluid, Homo KRAICER SHALGI histones, Artiodactyla BER SINGER in parthenogenetic & bisexual cycles, Diptera PANELIUS Mammalia HADJIISKI maturation, effect of hormones, Diptera ADAMS 1-methyladenine formation, Asteroidea SHIRAI organ culture, Mammalia BIGGERS origin of asymmetry, blastoderm in vitro, Aves LEPORI perfusion, Homo KENNEDY physiology, Hemiptera ESCHENBERG postnatal, part, follicle-oocyte interactions, Rodentia SZYBEK protein synthesis in vitro, Anura FORD role of hormones in development, Rodentia PETERS secretions, Homo, Rodentia STERN transplanted into spleen, DNA synthesis, Homo, Rodentia MARKELOVA OVIDUCT descriptive & experimental embryology, Anura GIRARD effect of hormones, Aves SCHIMKE epithelium, electron microscopy & cyto- chemistry, Carnivora, Homo, Rodentia JIRSOVA organ culture, Mammalia BIGGERS ovalbumin synthesis, induction by steroids, Aves PALMITER SCHIMKE relation to endocrine organs & gonad, Aves GROENENDIJK secretions, Homo, Rodentia STERN — , Primates, Rodentia ECKSTEIN — , after ovariectomy & hormone injection, Lagomorpha HAMNER — , effect on sperm metabolism, fertilizing ability & blastocyst development, Lago- morpha HAMNER — , fluorescence microscopy, Anura SHAVER — of fertilization factor, Anura BUDEGUER WASSERMAN OVIPOSITION see Egg(s) see also Reproduction (sexual) OVULATION see Egg(s) OVULE see Plant embryology OXYGEN deficiency, relation to embryogenesis, Teleostei BRAUM eggs with restricted air supply, Phas- mida PIJNACKER pressure, effect on egg & larva Teleostei BRAUM relation with DNA content, fibroblast, Aves MUSY PALATE see Mouth PANCREAS insular tissue, Homo POURANY , electron microscopy, Rodentia DE HOYOS insulin, Aves, Rodentia COALSON metamorphosis, role of cell replacement, Anura SOLURSH regeneration, Vertebrata SHAH biochemistry, Aves BEAUPAIN DIETERLEN effect of nutrition, Amphibia LESTAGE electron microscopy, Rodentia PERRIER , neonatal, Vertebrata NUGEYRE endocrine cells, Aves DRUKKER — function in fetus, Rodentia FELIX JACQUOT — , pathology, Aves HUNT endoplasmic reticulum & ribosomes, Rodentia HACH functional development, fine structure Aves DOSSEL PARABIOSIS blood cell chimerism, Anura VOLPE PARATHYROID GLAND extract, effect on toe joints in vitro, Rodentia BURGER primordium, physiology, Urodela KOECKE PARTHENOGENESIS Acari activation, Echinoidea, Teleostei artificial, Echinoidea FEIERTAG CZIHAK ISHIKAWA SUGIYAMA ASTAUROV BUSS — , part, genetics, Lepidoptera Aves chromosomal regulation by cold, Amphibia ROSTAND cytology, Turbellaria BENAZZI embryogenesis, Cladocera BETTANIN DELLA CROCE germ line & ovary, Diptera PANELIUS Hymenoptera KING paedogenesis, Diptera ■ CAMENZIND ULRICH Phasmida PIJNACKER pseudogamy, Turbellaria BENAZZI sexual dimorphism, embryonic, Cladocera GAINO Thysanoptera HEMING PATHOLOGY (development) see also Anomalies; Bacteria; Malformations; Teratogenesis; Virus(es) abnormal growths, genetics, Mollusca CHENG abortions, cytogenetics, Homo KAJII — , spontaneous, ABO incompatibility, Homo TAKANO — , — & induced, karyotype, Homo MAKINO — , — , karyotype, Homo SASAKI action of blastotoxic chemicals, Verte- brata SEGAL Aves ROMANOFF bacterial infection, role of placenta & fetal membranes, Rodentia FEDINEC caused by medicinal plants, Lagomorpha, Rodentia PERSAUD cell physiological mechanisms, Amphibia DUSPIVA cellular differentiation, reaction to foreign bodies, Mollusca CHENG chromosomes, fetus, Homo MIKAMO — , sex, newborns, Homo MIKAMO diabetes insipidus, role of pituitary, Aves BUSS — , metabolism, Homo, Primates REYNOLDS early embryonic mortality, influence of hormone imbalance, Artiodactyla TORRES effects of excess nutrients, Aves GOLDIE herbicides, Hymenoptera WURMBACH LADAS embryonic, Homo BERNDORFER — death, radiation-induced, Hymenoptera AMY experimental diabetes, Mammalia MERCIER TUCHMANN eye, inherited abnormalities, prevention by drugs, Rodentia KONYUKHOV fetal organs, histochemistry, Homo CZYZEWSKA heat & bone, Artiodactyla NIE Hirschsprung's disease, causes & prevention, Aves, Homo, Rodentia PRINS histo- & toxoplasmosis, Homo DURAN KLEISS Homo BODELET ILIES TESTA hypoxia, intra-uterine, chemistry of blood, Homo THIERY infections of fetus & placenta, Homo FLAMM karyotype, Homo MAKINO mortality, embryonic, relation with respiration of egg, Artiodactyla TORRES necrotic areas, Homo ILIES neuromuscular mutant, Rodentia McNUTT octosporeosis, Diptera KRAMER pancreas, endocrine, Aves HUNT placenta, Mammalia BECKER 294 — , endocrinology, Homo — , histochemistry, Homo — , — , immunochemistry, Homo prenatal, Aves — diagnosis, Homo Rodentia spermatogenesis, Homo virus-induced abnormalities — infection of blastocyst, IKONICOFF IVEMARK ultrastructure, CZYZEWSKA MENKES DOHERTY MOSER TORO WAELSCH POSINOVEC , Homo KOSKIMIES SAXEN Lagomorpha FLAMM LOVTRUP HAGLUND PATTERN FORMATION see Organization PELVIC GIRDLE see Skeleton PEPTIDES see Proteins PERITONEUM see Body cavities PERIVITELLINE FLUID see Egg(s) PERMEABILITY osmoregulation, Anura — , Anura, Urodela PHARMACOLOGY see Drug(s) PHARYNX see also Branchial region; Mouth derivatives, Aves RUDNICK endostyle, Ascidiacea TANAKA mechanism of formation, Turbellaria KIDO PHENOCOPIES Aves LANDAUER heat shock, pupal stage, action of modifiers, Diptera MOHLER Polydactyly, TEM treatment, Rodentia KOCHER rumpless, factors inducing, Aves GOLDIE PHOSPHORUS PHYSICAL FACTORS see specific physical agents; Biophysics PHYSIOLOGY (developmental) see Embryology (experimental); Embryology (physiological) see also Development PIGMENT(ATION) see also Chromatophore(s); Melanophore(s); Neural crest biopterin, function, tracer studies, Hyme- noptera REMBOLD cells, effect of actinomycin, Anura, Aves KRAMER colour pattern, Anura LA SPINA , genetics, Aves SEIGER development & endocrinology, Amphibia BAGNARA down feather, effect of hormones, Aves GROENENDIJK eye, Amphibia, Teleostei HASEGAWA — & testis, genetic control & ultrastructure, Lepidoptera GOTTLIEB feather, Aves KUHN melanogenesis, Anura LYNN morphology, chemistry, Pisces MORI mutant, developmental genetics, Rodentia DEOL pattern formation, dorsal skin, Anura BAGNARA — , genetic control, Urodela BRICK pteridine, metabolism, effect of enzymes, Lepidoptera PAPILLON — , wing disc, Lepidoptera LAFONT regenerating appendages, Crustacea RANGA role in pterin derivatives, Amphibia synthesis, biochemistry, Diptera PINEAL ORGAN Anura AOTO Aves AMONS culture, Aves AMONS development & function, comparative study, Vertebrata OKSCHE phylogenesis, Vertebrata COLLIN electron microscopy, Carnivora, Primates WARTENBERG — — , autoradiography, Aves, Mammalia, Reptilia MEINIEL experimental morphology, Artiodactyla VENZKE function & structure, Aves SPIROFF homoplastic graft, Aves MARRARO interaction with hypophysis & gonads, in vitro, Rodentia LOMBARD morphogenesis, Anura WAKAHARA — & physiology, Aves VENZKE neurotransmitters, Vertebrata COLLIN parapineal organ, electron microscopy, autoradiography, Cyclostomata MEINIEL proteins, autoradiography, Vertebrata COLLIN PITUITARY see Hypophysis PLACENTACTION) see also Blastocyst; Embryo-maternal relation- ships; Pregnancy anatomy & pathology, Homo IVEMARK STRATFORD androgen production, Rodentia OKKER blood vessels, Artiodactyla, Proboscidea KUNZEL , effect of trophoblast, Homo, Rodentia HARRIS — — , normal & abnormal fetus, Homo BHARGAVA CHAKRAVARTI — — , relation to physiological exchange, Artiodactyla, Perissodactyla STEVEN Cetacea HARRISON cholesterol & progesteron synthesis, in vitro, Homo CEDARD GUICHARD circulation, Homo, Primates comparative study, Mammalia MARTIN RAZEK STRAUSS BAKER BULMER DE FEO ORSINI control by hormones, in vitro, Homo cytochemistry, Rodentia decidualization, Rodentia — , immunology, Rodentia — , (pseudo)pregnancy, Carnivora, Rodentia ORSINI early histogenesis, ultrastructure, Rodentia CARPENTER effect of teratogens on function, bio- physics, histochemistry, autoradiography, electron microscopy, Rodentia KERNIS electron microscopy, Artiodactyla, Perissodactyla STEVEN , Cetacea, Pinnipedia YOUNG , Rodentia TORO — — , histochemistry, Homo, Mammalia VACEK endocrine activity, effect of maternal hyper- adrenocorticalism, Rodentia HOAR enzymes, electron microscopy, Homo KAUFMANN experimental study, Rodentia REVESZ fetal blood vessels, reaction to morphine, Homo LEMTIS fluoride transfer, Artiodactyla SHUPE giant cells, Rodentia ORSINI , aging, in vitro, Rodentia DORGAN hemochorial, transport of insulin & cyclamate, Primates REYNOLDS histochemistry, Artiodactyla, Homo HERNANDEZ — , Homo RIMNICEANU THIERY hormonal activity in vitro, Rodentia ZAAYER in intergeneric hybrids, pathology, Artiodactyla DENT HANCOCK RAMSEY IKONICOFF OBIKA SULLIVAN intervillous space pressure, Primates ions, Homo localization of HCG and hydroxysteroid dehydrogenase, Homo IKONICOFF Mammalia TA VERNE maternal, circulation, Homo, Primates DONNER MISENHEIMER RAMSEY metabolism, Artiodactyla NIXON 295 PLACENTATION (contd.) morphogenesis & physiology, Elasmobranchi, Chiroptera WIMSATT morphology, Mammalia FANTEL — & zymograms in twins, Homo THIERY — , relation to abnormal karyotype, Homo PAWLOWITZKI morphometry, Homo, Mammalia BAUR paraplacenta, fibroblasts, Artiodactyla KUNZEL pathology, Mammalia BECKER — , histochemistry, immunochemistry, ultrastructure, Homo CZYZEWSKA — , lipid histochemistry, Homo IVEMARK perfused, effect of gonadotropins on steroid synthesis & glycogenosis, Homo CEDARD physiology, Marsupialia RENFREE Pinnipedia HARRISON Primates BUTLER relation of size to growth of fetus, Mammalia NAAKTGEBOREN RNA, functional correlation, Rodentia SIRLIN routes of bacterial infection, Rodentia FEDINEC size, relation to fetal growth, Mammalia NAAKTGEBOREN steroids, Edentata BRINCK structure, development & vascularization, Homo, Primates RAMSEY — , in vitro, Homo BAKER tissue relations, physical & physiological, Artiodactyla ALEXANDER transfer, Carnivora, Rodentia SCHULTZ — of Au, Rodentia SXJDARWATI carcinogenesis, Rodentia WRBA — — corticoids, Artiodactyla, Lago- morpha BERTON drugs, Homo LEMTIS & toxicants, Homo NISHIMURA muscle relaxants, Rodentia JACOBS — — virus, Carnivora SCOTT vascularization, Artiodactyla STEGEMAN villous surface, relation to fetal weight, Homo, Mammalia BAUR PLACODE(S) see also Sense organs PLANT EMBRYOLOGY & MORPHOGENESIS (experimental & physiological) see also Unicellular organisms aggregation hormones, chemistry, Acrasiales PANNB ACKER apical dominance, auxin movement, Angiospermae SCOTT , experimental study, Angio- spermae NEVILLE — meristem, explantation, Orchidaceae SAGAWA apogamous structures, induction & develop- ment, Equisetinae KONDO auxin transport, effect of auxin pre- treatment, Gymnospermae GREENWOOD Bryophyta BOPP callus cells, in vitro, Angiospermae HACCIUS — from floral apex, formation & bud diffe- rentiation, Angiospermae HINDMAN — growth, differentiation in tissue cultures, mutants, Angiospermae HARTE cell differentiation, biochemistry, electron microscopy, Equisetinae, Phaeophy- ceae QUATRANO — — in intercalary growth, part, effect of hormones, Angiospermae KAUFMAN in vitro, nuclear aspects, Angio- spermae, Filicinae PARTANEN , sequence of gene-controlled enzyme synthesis, Acrasiales FRANCIS — membranes, differentiation, Acrasiales GERISCH — physiology, Eumycetozoina HOLTFRETER — shape, regulating factors, Chloro- phyceae MILLINGTON — walls, digitonin induced, Angio- spermae HANZELY , pore bodies, mathematical model, Desmidiales ACTON LACALLI , spatial patterns, laser, Desmidiales ACTON LACALLI , ultrastructure, Angiospermae HEYN chemotaxis & pattern formation, Acra- siales DURSTON — , cell aggregation & differentiation, Acrasiales KONIJN chloroplast membrane, Angio- spermae HOLOWINSKY coenobial forms, Chlorophyceae MILLINGTON control of development by specific gibbe- rellins, Ascomycetes SPECTOR crown gall development, Angiospermae BOPP — — inducing principle, Angio- spermae BEIDERBECK , tumor recovery, Angiospermae MEINS cyclic AMP phosphodiesterase inhibitor, chemistry & effect on development, Acrasiales GERISCH cytokinesis in early gametophyte, Filicinae PRAY cytokinin, effect on flower formation sites, lateral branch growth, senescence, Angiospermae SHAPIRO development of branching filaments, computer simulation, Algae, Fungi LINDENMAYER — — cultured tissues, Angiospermae, Gymnospermae NORSTOG — , vegetative & reproductive, Hepaticae JONES developmental anomalies, experimental study, Filicinae PARTANEN — biochemistry & genetics, Acrasiales LOOMIS — i currents & protein fluxes, Phaeophyta JAFFE — enzymes, stimulation by cyclic AMP, Acrasiales DE TOMA — genetics, Ascomycetes BRODY — — , Eumycetozoina KERR V Hepaticae STERN , fruiting body, Ascomycetes ZONNEVELD — physiology, Acrasiales GREGG — systems, Algae RICHARDSON differentiating, changes in metabolism, Saccharomyce tales, Spermatophyta MARRE differentiation, Angiospermae, Hepaticae ABEL — changes, photo induced, morphology, biochemistry & genetics, Fungi GALUN — in colonial forms, Chlorophyceae HOBBS — , sexual, effect of HCG, Angiospermae PREDA dormant cysts, seeds & spores, water uptake, Angiospermae SMITH dwarfism, genetics & physiology, Angio- spermae LOY effect of exogeneous DNA, Angiospermae LEDOUX water insoluble materials on growth & development, Angiospermae SMITH — on embryo of growth factors, phyto- kinins, Angiospermae HACCIUS electron microscopy, Acrasiales, Phyco- mycetes HOHL electrophysiology of development, Acrasiales KONIJN LAAT embryogenesis, Angiospermae LAKSHMANAN — & germination, electron microscopy, Angiospermae MOLLENH ALTER — , part, nutrient transport & RNA metabo- lism in dormancy & germination, Angiospermae SUSSEX embryology, tissue culture & electron miscroscopy, Angiospermae NORSTOG enzymes & mucopolysaccharides, Filicinae LOBO MENEZES epigenetic inherited changes, biochemistry, in vitro, Angiospermae MEINS ethylene, inhibition of mitosis, action in cell elongation, Filicinae MILLER experimental developmental morphology, Angiospermae, Chlorophyta JACOBS — . — — , Pteridophyta, Sperma- tophyta DeMAGGIO — embryogenesis, part, cell surface & polytene chromosomes, Angiospermae CLUTTER — embryology, Angiospermae LAKSHMANAN flower bilaterality, determination, Angio- spermae AFZAL NEVILLE flowering, biochemical mechanism, Angio- spermae TRIONE -, effect of meristem, leaf & inflores- cence primordia, Angiospermae AFZAL NEVILLE — , physiology, Angiospermae LANG free amino acids in embryo & environment, Spermatophyta RYCZKOWSKI gametogenesis, fertilization & early deve- lopment, electron microscopy, Chloro- phyceae URBAN 296 gametophytes, developmental genetics, Filicinae PARTANEN — , juvenile sporophytes, Filicinae PRAY gene expression, control by protein NOODEN genetic regulation, Angiospermae, Hepaticae ABEL — studies, Acrasiales SUSSMAN growth & propagation, effect of morphactins, Angriospermae HANZELY — control by amino acids, Hepaticae BRYAN — ; effect of sterols, Fungi NORMAN — hormones, action HEYN — metabolism, hormonal regulation, Angiospermae KAUFMAN — regulation & differentiation, sequential transcription of genome, Eumycetozoina SAUER ■ in vitro, K-auxin interaction, Angio- spermae MEINS — substances, morphogenetic reactions of varieties, Angiospermae KIERMAYER heterocyst spacing, mechanisms, Cyanophy- ceae WILCOX histochemistry of differentiation at multi- cellular level, Acrasiales PANNB ACKER hormones, action BEWLEY — , molecular basis for mode of action, Angiospermae G ALSTON — , physiology LANG hyphae, wall, biochemistry & ultrastructure, Fungi VRIES WESSELS immunochemistry of differentiation, Acrasiales GERISCH intercellular material, Chlorophyceae IWASA ionic changes, Phaeophyta JAPFE irregular embryogenesis, correlation with embryogenesis in vitro, Angio- spermae LAKSHMANAN lateral buds, basal dominance, Angio- spermae SHAPIRO leaf buds, experimental morphology, Angiospermae NEVILLE — ' morphogenesis, interaction between genes & environment, Angiospermae HARTE leaves, cell differentiation, pattern, Bryophyta MILLINGTON — , vein system, Filicinae PRAY life cycle, energy metabolism, protein synthesis, Eumycetozoina WEGENER light absorption, role of phytochrome, Angiospermae GALSTON — , effect on germination, Angiospermae MAEDA — , ■ morphogenesis, Characeae MAEDA — regulated development, Angiospermae KLEIN meiosis, synaptonemal complex, Angio- spermae TOKUYASU meiotic development, DNA synthesis, Angiospermae HOTTA STERN meristem, effect of growth regulators, Filicinae, Hepaticae STANGE microsclerotia, developmental physiology, Fungi BRANDT mitosis, Fungi FULLER — , regulation, Eumycetozoina GONTCHAROFF morphogenesis, biochemistry, Ascomycetes BRODY — of phyllotactic patterns, Pteridophyta, Spermatophyta LINDENMAYER — throughout life cycle, Eumycetozoina KERR morphogenetic movement & cell adhesion, Acrasiales GARROD differentiation, Acrasiales BONNER motile cells, Phycomycetes FULLER nucleic acid synthesis in seedlings and callus cultures, Angiospermae CAPESIUS nucleo-cytoplasmic interactions, protein synthesis, Chlorophyceae JOHNSON O2 & respiration in ovule, Spermato- phyta RYCZKOWSKI organ & cell differentiation, hormonal effects, Angiospermae, Chlorophyta JACOBS ovule formation, Orchidaceae SAGAWA parenchyma, pith, differentiation pattern & hormonal requirements, in vitro, Angiospermae ROBERTS photocontrol of development BUTLER photosynthesis, photosynthetic apparatus, Spermatophyta BUTLER physico-chemical gradients, ovule & embryo, Spermatophyta RYCZKOWSKI physiology, Fungi SUSSMAN phytochrome in development, Sperma- tophyta BUTLER polarity induction in zygote, biochemistry, electron microscopy, Equisetinae, Phaeophyceae QUATRANO pollen, gene activity, Angio- spermae MASCARENHAS — tube growth, Orchidaceae SAGAWA , protein & RNA synthesis, Angiospermae MASCARENHAS protein secretion & cell wall formation in vitro, Angiospermae CHRISPEELS protonema, morphogenesis, Bryophyta BOPP protoplasts, preparation, culture, fusion & wall regeneration, Angiospermae GALSTON regeneration, cell dedifferentiation, nucleic acid, Filicinae, Hepaticae STANGE regulation, action of maleic hydrazide NOODEN regulatory macromolecules, Phaeophyta FORMAN — mechanisms in cultured cells MILLS relation between biochemical & morphological differentiation, Fungi CANTINO reproduction, light induction, part, inter- action with temperature, Fungi LEACH RNA synthesis & cell activation, Angio- spermae JALOUZOT , regulation by auxin, Angiospermae KEY roots, adventitious, nucleic acid & protein, Angiospermae JALOUZOT — , effect of amino acids and Ca, Angio- spermae MENEZES — , isolated, nutritional requirement, Angio- spermae MENEZES — meristem, cell ultrastructure & cell cycle, autoradiography, Angiospermae BAL — nodules & leghemoglobin, Angio- spermae SCHULMAN — , normal & excised, anatomy, Angio- spermae MENEZES — >, primary, effect of gravity changes, Angiospermae GULLUNI SANTORO — regeneration from hypocotyl, Gymno- spermae GREENWOOD — tip growth, effect of methylated xanthines, Angiospermae CHENEY — — ultrastructure, dormant & post- dormant, Angiospermae WATSON seed germination, activation, cytochemistry & physiology, Angiospermae BRYANT , glyoxysomes, Gymnospermae MAY — physiology, part, nucleic acids, Angiospermae MAY sex differentiation, genetics & physiology, A ngiospermae LO Y — expression, genetic & hormonal factors, Angiospermae GALUN sexual development, effect of sterols, Fungi NORMAN — morphogenesis, biochemistry & ultra- structure, Fungi WESSELS shoot apex & leaf, morphogenesis, Angio- spermae, Bryophyta MILLINGTON — growth, DNA synthesis, Angiospermae BOPP Si accumulation, leaf & internode, Angio- spermae SONI silicification, electron microscopy, Angio- spermae, Equisetinae KAUFMAN spore development, Algae, Rhodophyta JONES — formation, sporogenic substances P-no> Fungi LEACH — germination, physiology, Fungi SUSSMAN , ultrastructure, biochemistry, Fungi CANTINO sporeling, morphogenesis, Characeae IMAHORI sporulation, light-induced, biochemical mechanism, Fungi TRIONE stem & coleoptile, hormonal regulation of growth & invertase, Angiospermae SONI stomata, cork-silica cell pairs, trichomes, ultrastructures, Angiospermae KAUFMAN sulfate metabolism, cell wall & membranes, Algae SCHIFF tissue culture, auxin requirement, Angio- spermae MEINS — — , embryos & tissues, Angiosper inaeHACCNJS — differentiation & culture, biochemistry, genetics, Spermatophyta QUATRANO tumor, genetic, induction, development & cell ultrastructure, Angiospermae AMES urease regulation in cotyledons & ontoge- nesis, Angiospermae SEHGAL vascular bundle in embryo, effect of coty- ledon primordia, Gymnospermae WOLTZ 297 PLANT EMBRYOLOGY (contd.) — elements, environmental effects on morphogenesis, Angiospermae BAB A ROBERTS wall, control & synthesis, Phaeophyla FORMAN wound vessel member formation, enzyme prepattern, Angiospermae BABA ROBERTS xylem, effect of environment, Gymno- spermae DENNE zoospore release & colony formation, Chlorophyceae MILLINGTON PLEURA see Body cavities POLAR BODIES see Egg(s) POLARITY see Gradient(s); Symmetry POLE CELLS see Germ cells (primordial) POLYEMBRYONY Aves experimental, Teleostei — , orientation, Aves decidualization, Carnivora, Rodentia distribution of embryos in uterus, Rodentia early, Rodentia effect of antimitotic agents, Rodentia ORSINI KNJAZEVA LUTZ LUTZ POLYMORPHISM (insects, including caste determination caste determination, Isopteta BANERJEE diploid drones, Hymenoptera WOYKE environmental factors, Homoptera LEES queen determination, biochemistry of queens & workers, Hymenoptera REMBOLD — — , substance in royal jelly, Hymenoptera REMBOLD , isolation from royal jelly & from silkworm, Hymenoptera REMBOLD wing, Homoptera KISIMOTO POLYPEPTIDES see Proteins POLYPLOIDY cytogenetics, Lepidoptera determinism, cytology, Titrbellaria DNA & nuclear size, Anura embryology, Axes experimental, Lepidoptera genetic control, Aves retina, Rodentia spermatogenesis, Lepidoptera STRUNNIKOV VEREISKAYA BENAZZI LAVALLE BUSS ASTAUROV BLOOM MARSHAK STROEVA DANILOVA VEREISKAYA supernumerary pronuclei, Lagomorpha, Lamelli- branchia, Rodentia LONGO tetraploidy, experimental, Urodela JAYLET triploid intersexes, genital apparatus, Diptera LAUGE triploidy, gynogenesis, Teleostei RASCH Turbellaria BENAZZI POLYSACCHARIDES see Carbohydrate(s) POSTEMBRYONIC DEVELOPMENT see Development (postembryonic, fetal) POTENCY see Embryology (experimental) see also Determination; Organization; Regulation PREGNANCY see also Embryo-maternal relationships; Placenta(tion) alloxan-diabetes, Rodentia blood, amniotic & intervillous space pressure, Primates changes in uterine vessels, Rodentia corpus luteum, factors controlling life, Rodentia cortisone, Rodentia HUNT RAMSEY ORSINI ORSINI MERCIER REBF.R WILSON MERCIER TUCHMANN — chemicals, Lagomorpha, Rodentia HARPER enzymes in maternal blood, Homo ROBINSON estrogens, Carnivora BRINCK experimental diabetes, Mammalia MERCIER TUCHMANN gestational age, Homo BALAKRISHNAN LAKSHMANAN immunology, Mammalia BILLINGTON I.U.D. effect on embryo & decidua, Rodentia CHALLONER morula development in presence of I.U.D., Rodentia KELLY pseudo-, Homo, Lagomorpha, Rodentia DIAMOND — , decidualization, Carnivora, Rodentia ORSINI resorption, fetal, Rodentia WEIR Teleostei CHAMBOLLE Urodela CHAMBOLLE PRIMITIVE STREAK see also Blastoderm Aves JACOB fate of different parts, tracer study, Aves NICOLET Hensen's node, Aves . JACOB — — , role in somite differentiation, Ave s NICOLET inductive capacity, Aves GALLERA role in body formation, Aves, Anura, Rodentia VACEK PRIMORDIAL GERM CELLS see Germ cells (primordial) PROLIFERATION see Mitosis PRONEPHRIC DUCT see Urogenital system PRONEPHROS see Kidney (s) PROSPECTIVE MAPS see Embryology (experimental) PROTEIN(S) (incl. Peptides & Polypeptides) actin-like, egg, Echinoidea MIKI actomyosin, role in cell adhesiveness, Aves KEMP albumen & yolk, transfer to embryo, Aves LOCCI — , bio- & histochemistry, Aves CARINCI — uptake, embryo, immunofluorescence, Gastropoda ARNOLDS basic, oogenesis & early development, Echinoidea BACKSTROM — ribosomal, patterns, Diptera BYRD KASINSKY blood, genetics & physiology, Insecta EGELHAAF brain, in neurological mutants, Aves FRIEDMAN specific, effect of hormones, Aves FRIEDMAN breakdown, relation with degenerating yolk granules, Gastropoda WAL central nervous system, Aves McCALLION changes in development, Anura, Echinoi- dea SPIEGEL early development, Anura STANISSTREET contractile, myogenesis, Homo, Rodentia JOHN controlling RNA synthesis, eye lens fibre cells, Artiodactyla ELMER comb, electrophoresis, Aves LAWRENCE cortical contractile, mitosis, Echinoidea SAKAI DUBEY PANT CASPARI BEETSCHEN GASSER DUSPIVA MACHA PALECEK ROMANOVSKY cuticle & egg shell, Lepidoptera development, Rodentia developmental genetics, Urodela differentiation, Amphibia, Insecta early stages, Amphibia 298 , Anostraca, Echinoidea HULTIN egg & hemolymph, Phasmida KOCH — , composition, radio-isotope study, Insecta ENGELS embryonic & yolk, biochemistry, Teleostei YAMAGAMI eye lens, crystallins, Anura McDEVITT epithelium, Aves FINNEGAN McLEAN , immunology & immuochemistry, Aves, Homo DOORENMAALEN , regulation, Anura, Aves CAMPBELL CLAYTON TRUMAN fibroin, biochemistry & genetics, Lepidoptera BROWN GAGE SUZUKI fibrous, nerves, Aves, Cyclostomata FILONI haemolymph, metamorphosis, biochemistry, Hymenoptera LENSKY imaginal disc, Diptera SPREY interaction with nucleic acid, early deve- lopment, Echinoidea IMMERS lens, synthesis, localization, Aves SHAMOTO liver & hepatoma, Aves, Rodentia MURISON a-2-macroglobulin, development & rege- neration, Rodentia HEIM membranes & cytoplasm CRICK metabolism, Amphibia, Aves TIEDEMANN — in differentiation, Amphibia FAULHABER explanted embryo in relation to growth & differentiation, Aves KICKEY KLEIN — , larval, Trematoda GILBERTSON — , metamorphosis, endocrinology, Lepi- doptera COLLN — , oocyte in vitro, Mammalia CROSS — , oogenesis, Amphibia FICQ — , regeneration, Amphibia ANTON microtubules, immunology & thiol-disulfide exchange, Echinoidea KIMURA mitochondrial, role in blastodisc hemoglobin synthesis, Aves WAINWRIGHT mitotic apparatus, egg, Echinoidea MIKI moulting fluid, Hymenoptera LENSKY mucoproteins in fetal skin, Homo GIANNETTI muscle, embryonic, Aves HERRMANN nervous tissue, synapses, Artiodactyla, Primates KORNGUTH neurotubular, role in nerve cell maturation, Aves MARCHISIO nuclear & cytoplasmic, liver, experimental study, Rodentia MALPOIX — , control, gene activity, Echinoidea TERMAN — , oocyte & embryo, Echinoidea COGNETTI — transplantation, Anura LEGNAME MARIANO nucleoproteins, atypical, larval develop- ment, Diptera RASCH — , relation to ultrastructure during growth, Rodentia KLEINFELD oocyte, uptake & deposition, Orthoptera KUNZ oogenesis, autoradiography, Coleoptera, Diptera SCHAFER optic lobes, eyeless animals, Aves MARCHISIO organ-specific, kidney, Aves CROISILLE parotid, effect of diet, Rodentia REDMAN passage from mother into early embryo, Lagomorpha KULANGARA pattern changes, Teleostei DENUCE in yolk system, Coleoptera KUTHE — , teratocarcinoma, Rodentia SERMAN SOLTER phosvitin synthesis, role of tRNA & tRNA synthetase in liver, Aves GERLINGER pineal organ, autoradiography, Vertebrata COLLIN plasma, synthesis in clonal liver cells, Homo, Rodentia KAIGHN polymorphism, Lepidoptera PAPILLON produced in presence of RNA inhibitors, in vitro, Echinoidea COUSINEAU protamines, spermatogenesis, Teleostei AVIVI MOAV quantitative cytochemistry, induction & differentiation, Vertebrata VAHS regulation during metamorphosis, Crustacea, Insecta LAUFER — , mammary gland & tumor, Rodentia WILLIAMS reticulin, testis, Homo POSINOVEC retina regeneration, Urodela MITASHOV ribosomes, oogenesis, Anura FORD — — , Echinoidea COGNETTI — , regulation, biochemistry, autoradio- graphy, Diptera KIEFER role in primary determination & primary differentiation, Orthoptera SAUER — — skeleton formation, Echinoidea PUCCI salivary gland, Diptera ELLGAARD secretion by corneal epithelium, Aves HAY serum, Aves, Rodentia HEIM soluble, organogenesis, Rodentia SERMAN SKREB stage & tissue specific, Diptera, Lepi- doptera IMBERSKI specific, cell & organ culture, Anura ROLLINS synthesis, action of hormones & meta- morphosis, Lepidoptera WYATT — , activation during cleavage, Echinoidea WILT after cortical lesions, Anura BRACHET Anura RAISMAN & transport, effect of hormones, oogenesis, Insecta WYATT blastocyst, delayed inplantation, Mammalia GULYAS — , hormone action, Rodentia PRASAD cell differentiation MELLER — — in vitro, Aves COLEMAN cleavage through organogenesis, Orthoptera WEGENER control, early stages, Anura SWANSON — , polyribosomes, Anostraca, Echinoidea TERMAN differentiating cells, E.M. autoradio- graphy, Amphibia during development, Anura early cleavage, Lagomorpha — development, Echinoidea — — , Gastropoda — — , Insecta effect of hormones, Blattariae, Diptera egg, Echinoidea — , Invertebrata electron microscopy Lepidoptera embryo, Echinoidea JACOB GASTON PETZOLDT GIUDICE COLLIER DONGEN SCHNETTER postembryonic, SHAAYA IKEDA RITSCHARD autoradiography, BERRY HUMPHREYS — , biochemistry, in vivo & in vitro, Echinoidea INFANTE epigenetic & genetic control, cell diffe- rentiation, Vertebrata WHITT eye lens, Aves PIATIGORSKY in vitro, control, Aves BRAVERMAN genetic & epigenetic control, cell differentiation, Vertebrata SCHOLL — in cell aggregation, Amphibia GRUNZ eggs & embryos, Echinoidea rVERSON — — metamorphosis, role of ecdysone, Diptera SEKERIS — — vitro, polysome formation & break- down, Anostraca CLEGG vivo & in vitro, Aves GOTTSCHLING — , inhibitors, developmental effects, Echinoidea CHENEY — initiation, Anura DECROLY — , localization during cleavage, Gastropoda — , oocyte, Amphibia, Aster oidea, Mammalia — , — , Anura — , — , Homo, Rodentia — , — , Urodela — , ovary in vitro, Anura — , polytene chromosomes, normal & infected larvae, Diptera PA VAN — , primary induction, Anura LE PATOUREL — , queens & workers, Hymenoptera REMBOLD — , regeneration, autoradiography, Oligochaeta — , — , effect of ultrasound, Lago morpha, Rodentia — , relation to free amino acid pool, Teleostei, Urodela CRAWFORD — , — — histones, RNA & hormones, neural crest in vitro, Anura ANDREW — , morphogenesis, tracer studies, Echinoidea GEZELIUS — , — — ultrastructure, eye, Aves KVINIKHIDZE — , storage & expulsion, effect of exogenous agents, parotid gland, Rodentia GORDON — , supported by subcellular fraction of blastula, Anura GRANGER WAL SCHUETZ HORTON KENNEDY LACROIX FORD MOUTON DYSON 299 PROTEIN(S) (contd.) — , tissue differentiation, Gastropoda MINAFRA tissue-specific, control of synthesis, Anura ROLLINS transmission, fetal membranes, Lago- morpha WILD transport site, oocyte & liver, Axes, Diptera, Rodentia ROTH turnover, central nervous system, Rodentia STEWART uterine, effect on blastocyst, Homo, Lagomorpha BEIER — , preimplantation stages in vitro, Lagomorpha MAURER vitellogenic, effect of hormones, Coleoptera KORT water soluble, Echinoidea, Teleostei HORI yolk, biochemistry, Orthoptera, Phasmida KOCH — , in fat body, Diptera HAGEDORN — , molecular biology, Anura TATA — synthesis, transport & composition, Crustacea, Vertebrata WALLACE PROTOZOA see Unicellular organisms RADIATION see Irradiation RADIO-ACTIVE TRACERS see Autoradiography: Biochemistry; Radio-isotopes RADIO-ISOTOPES see also Autoradiography actinomycin incorporation in egg, Ascidiacea MANSUETO blood cells, Aves VAN ALTEN Ca metabolism, embryo, Aves SIMKISS cell migration, neural crest, Urodela SALA collagen, polymerization, pupa, Lepi- doptera, Orthoptera ASHHURST DNA, RNA & protein, role in primary determination & differentiation, Orthoptera SAUER glucose uptake, early embryo, Aves HARRISON in analysis of development, Ascidia- cea MANSUETO ionic permeability, egg, Echinoidea, Teleostei HORI metabolic pathways, Echinoidea, Scyphozoa BLACK , tracer studies, Echinoidea, Scyphozoa BLACK nuclear labelling, genetic & embryonic effect, Amphibia CHIBON oogenesis, yolk, protein, glycogen, Insecta ENGELS phosphate, sugar & nucleic acid metabolism of embryo, Echinodermata YANAGISAWA precursors, incorporation in tissue, Aves DESVEAUX primitive streak, fate of different parts, Aves NICOLET protein synthesis, early stages, Gastropoda DONGEN — — , nucleo-cytoplasmic relations, Echinoidea GEZELIUS tritiated thymidine, mutant embryos in vitro, Rodentia STEIN — — & uridine, incorporation in germ cells, Aves CALLEBAUT RADIOMIMETIC AGENTS REAGGREGATION see Cell(s) see also Tissue culture REARING METHODS Crustacea RICE larval stages, Polychaeta CAZAUX strains, Amphibia NACE REGENERATION (physiological) brain, Mammalia POLEZHAEV hair follicle, Artiodactyla CHASE intestinal epithelium, Urodela MARTIN normal cell populations, Roden- tia BERTALANFFY skin, cell renewal, Lacertilia, Ophidia MADERSON REGENERATION (traumatic) see also Unicellular organisms; Wound healing absence, factors involved, Hirudinea CORNEC adrenal gland, Rodentia FORTAK Amphibia SINGER anomalies, Oligochaeta, Polychaeta, Turbellaria STEPHAN anterior, photoreceptors, ultrastructure, Nemertea VERNET — , porphyrin synthesis, Nemertea VERNET appendages, cell determination, Blattariae BULLIERE — , control of pigmentation, Crustacea RANGA — , differentiation of implanted tumours, Anura MIZELL — , myo- & myofibrillogenesis, Blat- tariae BULLIERE — , relation to hormones, Blattariae BULLIERE Asteroidea LENDER at different stages of development, Annelida MALIKOVA axial structures, effect of subcommissural organ, Anura HAUSER biochemistry, Annelida DURANTE PUCCIA blastema cells, origin, Polychaeta SICHEL — , differentiation & dedifferentiation, Turbellaria TRAMPUSCH — , effect of x-rays, Turbellaria OKUNO SUGINO — formation, cellular mechanism, Turbel- laria BETCHAKU — , induced in heterotopic positions, Urodela HARREBOMEE — , regulation, determination, ^differen- tiation, Urodela BRYANT — , ultrastructure, Turbellaria SAUZIN blood vessels, Aves, Homo, Mammalia KREDIET bone, histochemistry, Rodentia MAKINEN RAEKALLIO caudal, endocrine control, Polychaeta HOFMANN cell & tissues, ultrastructure, Urodela SCHMIDT — differentiation, Hydrozoa AOTO — — t division & movement, Hydrozoa PARK — — , effect of inorganic ions, Hydrozoa MACKLIN — , fine structure, RNA turnover, Turbellaria, Urodela HAY — migrations, role of cell types, mesoglea & perisarc, Hydrozoa DIEHL — , origin, Nemertea BIERNE — renewal systems, after irradiation, Rodentia YAMAGUCHI — source & movement, Hydrozoa TWEEDELL cellular basis, Nemertea PEDERSEN — , lymphatic system, Rodentia HINRICHSEN central nervous system, Urodela SCISLAWSKI , effect of metamorphosis, endocri- nology, Anura FILONI , mitosis, Amphibia BAFFONI , stimulation by implanted neuro- blasts, Amphibia FILONI chemistry, Urodela SCHMIDT cilia, cell association, embryo, Echinoi- dea TERAYAMA comparative study, Hydrozoa PARK connective tissue, filament formation, Turbellaria PEDERSEN cranium bones, Carnivora KANTOROVA , Mammalia POLEZHAEV Ctenophota PYLILO Decapoda VERNET dedifferentiation & differentiation, Urodela HARREBOMEE dental tissue, Carnivora POLEZHAEV dermis, embryonic constitution, Urodela TRAMPUSCH DNA synthesis & cell cycle, Amphibia ANTON ear, external, Lagomorpha JOSEPH early stage, relation protein-RNA, Oligochaeta LECHENAULT effect of anti-metabolites, antibiotics & nucleic acids, Amphibia, Echinoidea WOLSKY — — antiserum, Urodela TABAN artificial stroma, Aves ANSEVIN Be, Turbellaria NEEDHAM carpal blastema on minced muscle, Urodela DINSMORE central nervous system, Turbellaria ANSEVIN chemicals, correlation with effect of enzymes, Echinodermata, Turbellaria HEIN 300 electrical & biochemical stimulation, Coelenterata GOODWIN nerves & endocrines, in vivo & in vitro, Amphibia LIVERSAGE — — nervous system, Urodela RZEHAK — — steroids & drugs, Lagomorpha JOSEPH — ■ — vitamin A, Anura, Aves NIAZI — — x-irradiation, Asteroidea HUET , Polychaeta BAUTZ electron microscopy, Ctenophora PYLILO endocrine factors, Amphibia THORNTON epithelium, Lagomorpha JOSEPH — , cytology, Rodentia DECK eye, Amphibia, Teleostei HASEGAWA — , Turbellaria KISHIDA — lens MIKAMI , Urodela KATO & limb, common stimulating factors, Urodela REYER , & non-regeneration, effect on iris, Urodela REESE , antigenic studies, Amphibia CAMPBELL TRUMAN , causal analysis, autoradiography, Urodela REYER — — , dedifferentiation, ultrastructure & biochemistry, Urodela YAMADA , determination of site, Teleostei LOPASHOV — — , effect of hypophysis in vivo & in vitro, Urodela CONNELLY , — ■ — retina stimulation, Urodela POPOV — — , electron microscopy, Urodela DUMONT — — , embryo, normal & effect of inhi- bitors, Urodela WOLSKY , experimental study, Amphibia EISENBERG — — , molecular & cellular events, Urodela EGUCHI , ^differentiation in vitro, Urodela YAMADA — — , regulatory mechanisms, Anura CAMPBELL factors, part, nervous system, Annelida BOILLY feather germ & hair follicle, effect of car- ctnogenetic agents, Aves, Rodentia KOECKE fore limb, effect of hind limb epidermis, Urodela FINNEGAN GARROD fracture repair, Urodela PRINS TRAMPUSCH genital apparatus, role of neurosecretion, Trematoda, Turbellaria GRASSO germ cells, Turbellaria DI MARCOTULLIO growth, nucleoprotein, relation to ultra- structure, Rodentia KLEINFELD head, hydrolase, lysosomes, Oligo- chaeta Hemichordata hind limb, Anura hormonal influences, Urodela Hydrozoa LECHENAULT BURDON MICHAEL SCHMIDT BERRILL WEBSTER I-cells, cytology, Hydrozoa KIDO in vivo & in vitro, Oligochaeta MARCEL induction, Anura DENT inductive & inhibitory substances, Turbel- laria LENDER Insecta POHLEY intrauterine, malformations, Homo BERNDORFER jaw & teeth, descriptive & experimental study, Urodela REYREL — , dental lamina, experimental study, Urodela GRAVER limb & muscule, Urodela CARLSON - & tail, Anura NIAZI aneurogenic, effect of x-rays, Urodela ROSE — , on normal hosts, Urodela THORNTON — proliferation pattern, Urodela HEARSON biochemical regulation, Urodela FORET blastema in vitro, Urodela FORET — bud, ectodermal ridge, part, effect on limb bones, Aves DUBEY NAVAGIRI PATIL — , cuticula deposition, Blattariae LEOPOLD — , denervated, de- & redifferentiation, cytochemistry, Urodela HEARSON — , effect of nerves & denervation, Urodela BUTLER — , thyroid hormones, Anura KOLLROS VAN STONE — , ultraviolet radiation, Urodela BUTLER — , heterotopic, Anura TRAMPUSCH — , induced, Marsupialia MIZELL — , inhibition, Urodela CARLSON — , mechanics of blastema formation, Urodela BUTLER — muscle, satellite cell ratio, electron microscopy, Amphibia, Mammalia DINSMORE — , neurotrophic control, Urodela SINGER — , organogenesis of carpals, role of radius, Urodela MANNER — , polarity & gradients, Blattariae BOHN — , — reversal, Urodela BUTLER — , proliferation, DNA synthesis & nerve fibre pattern, Urodela HEARSON — , restoration after x-irradiation, bio- chemistry, Urodela POLEZHAEV TEPLITZ TUCHKOVA — , role of electrolytes, Amphibia BURKART — , — — hormones, nerves & RNA, Urodela TASSAVA — , prolactin, Urodela WATERMAN — , supernumerary, Urodela CARLSON — , thyroid & adrenal hormones, Anura NIAZI — , Urodela WALLACE — , Vertebrata KUDOKOTSEV — , x-irradiation, tissue & organ grafts, Urodela LAZARD liver, cytology, Rodentia RYABININA — , effect of reticulo-endothelial system, Rodentia STERN — , endocrine control, Rodentia WIEST — , growth control, Rodentia BADRAN ECHAVE LLANOS RESTELLI — , homeostasis, Rodentia TERAYAMA — , kidney, cellular proliferation, Mam- malia ARGYRIS — parenchyma, mitosis, Rodentia BERTALANFFY — , partial, repeated, Rodentia CRACIUN — , physiology, Vertebrata ASNANI BONNY SHAH — , relation to hypophysis, Rodentia ECHAVE LLANOS — , RNA synthesis, Rodentia MUTOLO lung, Rodentia ROMANOVA lymph gland, Vertebrata ASNANI BONNY SHAH a-2-macroglobulin, Rodentia HEIM mammary gland, transplantation, Rodentia HOSHINO mandible & os priapi, effect of castration & androgens, Rodentia BERESFORD mechanism, Rodentia LIOSNER morphogenesis, Nemertea BIERNE — , Urodela STOCUM morphogenetic fields, Urodela TRAMPUSCH motor nerves, Teleostei, Urodela MARK multiple, Hemiptera BRYANT muscle, cytological changes, Urodela DECK — , minced, Rodentia, Urodela CARLSON — , normal & dystrophic, Rodentia SCHMIDT myocardium, Mammalia AKHABADZE MALIOVANOVA POLEZHAEV — , biochemistry, Lagomorpha SADOKOVA Nemertea GONTCHAROFF IWATA neoblast, cytology & ultrastructure, Turbellaria KIDO KISHIDA — differentiation, Turbellaria OKUNO SUGINO — , electron microscopy, Turbellaria LENDER — , migration & differentiation, Oligochaeta, Polychaeta, Turbellaria STEPHAN nerve fibres, larval, Urodela BAFFONI — — , olfactory system, ultrastructure, Teleostei WESTERMAN nervous system, Rohon-Beard cells, Amphibia MARINI neural retina, autoradiography, Urodela REYER nucleic acid and protein synthesis, Oligochaeta MOUTON nucleo-histones, Amphibia, Turbellaria TOROK Oligochaeta PASCHMA SAUSSEY optic nerve, functional aspects, Anura GAZE origin, development & transmission of mal- formations, Turbellaria SCHILT STEPHAN pancreas, Vertebrata SHAH 301 REGENERATION (contd.) pattern formation, Amphibia, Hydrozoa WOLPERT peripheral nerves, Aves, Carnivora ERHART pharynx, effect of various factors, Turbellaria ZILLER Phasmida BART polar, induction, Hydrozoa MULLER Polychaeta BERRILL BOILLY Porifera BRONDSTED KOROTKOVA posterior, cytology, autoradiography, Oligochaeta MOUTON — , effect of cerebral ganglion, Oligo- chaeta COULOMB potential, Oligochaeta COULOMB protein & amino acid metabolism, Amphibia ANTON regeneration cells, origin, activation & differentiation, evolution, Annelida BOILLY regenerative response, modification, limb & fins, Amphibia, Teleostei WEIS regulation, inner organs, Lagomorpha, Rodentia SIDOROVA relation with asexual reproduction, Turbellaria KRITCHINSKAYA — — immunology, Mammalia WATTS Reptilia BELLAIRS retina, Teleostei LOMBARDO — & visual pathway, V ertebrata GOLDBERG — , autoradiography, Anura DABAGIAN — , from dissociated cells, in vitro, Aves FUJISAWA — , neural, Lacertilia LOMBARDO — , — , DNA & cell cycles, Urodela MITASHOV SINITSINA STROEVA — , — , LDH isozymes, Urodela KOROCHKIN MITASHOV — , — , transformation of pigment epithe- lium cells, Urodela MITASHOV — , pigment epithelium & lens, metaplasia, Rodentia LOPASHOV SOLOGUB — , epithelium, relation to cell cycle, Mammalia KEEFE — , ultrastructure & cytochemistry in vitro, Mammalia KEEFE RNA synthesis, Amphibia BURGESS , control by tissue interaction, Urodela STOCUM role of hormones, Urodela MANNER — — nervous system, Asteroidea HUET , Turbellaria TOROK & territories of regeneration, Turbellaria SCHILT — — neurosecretion, Oligochaeta ROSI salivary gland, transplantation, Rodentia HOSHINO scales, Teleostei ASAKURA — , ultrastructure, mineralization, Teleostei NUSSBAUM Scorpionidea SHULOV skull, frontal bone, Teleostei PINGANAUD spinal cord, Urodela BUTLER spleen, Vertebrata ASNANI BONNY SHAH starving animals, cytology & cytochemistry, Turbellaria PEDERSEN stomach, Rodentia TIMASHKEVICH supernumerary limbs, part, role of nerves & skin, Urodela LHEUREUX tail, Lacertilia HIRADHAR RADHAKRISHNAN RAMACHANDRAN SHAH WERNER — , early stages, Anura BRUSTIS — , epidermis, Lacertilia MADERSON — fin, origin of collagen, Anura, Urodela GONA — — rays, fine structure, Teleostei KEMP — , polarity, Lacertilia BRYANT territories, Isopoda HOARAU thymus & spleen, Rodentia KHARLOVA tissues & organs in vitro, Turbellaria ZILLER — , effect of ultrasound, Lagomorpha, Rodentia DYSON — , function of satellite DNA & macro- molecules, Decapoda GRAHAM SKINNER Trematoda BILQEES trophic factor & specific inhibition, Oligochaeta MARCEL Turbellaria BRONDSTED HIRN TOKIN undifferentiated cells, activity, normal & regenerating animals, Turbellaria CHANDEBOIS xenoplastic blastemata, compatibility, Anura, Urodela TRAMPUSCH REGULATION (embryonic) eye primordia, Cephalopoda MARTHY genital disk, Lepidoptera DEWES Hydrozoa WEBSTER limb, skeletal morphogenesis, Aves KIENY wing bud, Aves AMPRINO REPRODUCTION (asexual) see Asexual reproduction REPRODUCTION (sexual) see also Egg(s); Fertility (& sterility); Fertilization; Reproductive system; Spermatozoa etc. anatomy & ecology, Homoptera MOCHIDA artificial insemination, Homo FRANCOEUR , Mammalia ROWSON Artiodactyla HUBER as affected by mutants, Diptera DOANE autogeny, Diptera BRUST Cetacea HARRISON Chiroptera UCHIDA comparative biochemistry, Elasmobranchii, Mammalia, Mollusca MANN constant-estrus, oogenesis, Rodentia SEGAL cycle, Invertebrata KASYANOV — , Malacostraca HALEY effect of chemical agents, irradiation, Hymenoptera GROSCH — — endocrine glands, Aves KAMAR gonads, Aves KAMAR hormones & analogs, Insecta STAAL space flight, Insecta GROSCH embryonic diapause, maternal endocrine glands, Mammalia BAEVSKY endocrinology & periodicity, Poly- chaeta HAUENSCHILD — , male Orthoptera EWEN environmental factors, Aves KAMAR enzyme activity, Hydrozoa MULLER estrus cycle, alloxan-diabetes, Rodentia HUNT gamete transport in female, Lagomorpha, Primates CLEWE Gastropoda MAZURKIEWICZ Homo, Rodentia DIAMOND hormones, Teleostei YAMAMOTO immunology, Homo, Mammalia EDWARDS intra-uterine contraceptive devices, mode of action, Primates, Rodentia ECKSTEIN laboratory culture, Polychaeta BLAKE Lagomorpha HUBER male, physiology, Rodentia HUMINSKI maternal effect of cross-fostering, Artio- dactyla ROBISON ootheca secretion, Blattariae STAY oviduct secretions, effect on sperm, Lago- morpha HAMNER paedogenesis, Diptera CAMENZIND ULRICH physiology, Blattariae BARTH — & functional morphology, Orthoptera EWEN Pinnipedia HARRISON Polychaeta DEAN HOFMANN Primates BUTLER recognition of specificity, compound forms, Ascidiacea TANAKA WATANABE relation to hypothalamus & hypophysis, Teleostei MOISEEVA Rodentia HUBER KRAICER SHAHAM semen & egg production, effect of tem- perature, Aves BOONE — , biochemistry, Mammalia MANN — , plasma proteins, Mammalia BOURSNELL seminal antigens, Homo KULANGARA — plasma protein antigenicity, Homo NAKABAYASHI 302 sex cycle, Teleostei KOSHELEV spawning, Lamellibranchia, Phoronida, Polychaeta TUCKER — , Polychaeta KNIGHT — , Prosobranchia D'ASARO — , Teleostei KOSHELEV — , mechanism & electron microscopy, Aster oidea KANATANI SHIRAI sperm, artificial insemination, ovulation & breeding time, Carnivora HAMNER spermatozoa, apyrene, function, Lepi- doptera FRIEDLANDER subterranean species, Copepoda LESCHER Vrodela DURAND viviparity, Teleostei GOTTING — , nutrition of embryo, Blattariae STAY wild animals, Mammalia BIGGERS REPRODUCTIVE SYSTEM see also specific parts; Genital tract; Urogenital system accessory sex gland, effect of hormones on protocatechuic acid glucoside synthesis, Blattariae SHAAYA — — — , male, ultrastructure, Diptera ACTON — , pathology, Artiodactyla BLOM bulbo-urethral glands, electron microscopy, Rodentia FLICKINGER comparative morphology, Mammalia MOSSMAN — study, Amphibia IWASAWA Conchostraca ZAFFAGNINI cytochemistry, Diptera LEOPOLD descriptive & experimental study, Cepha- lopoda DIGRANDE GRASSO , Phasmida CAVALLIN determination & differentiation, triploid intersexes, Diptera LAUGE diploid drones, Hymenoptera WOYKE Diptera VOORHEES ductus deferens, electron microscopy, Homo HOLSTEIN early development, Axes CUMINGE DUBOIS effect of irradiation, Rodentia MURAMATSU experimental study, Anura GIPOULOUX female, comparative anatomy, Mammalia STRAUSS follicle & tubal secretion, Homo KENNEDY gonangium, description, role of tempe- rature & microfilaments, Hydrozoa MILLER histophysiology, sterile hybrids, Aves GOMOT MARCHAND hormonal regulation, Lepidoptera WARREN larval, Crustacea PA YEN male & female, larva, Coleoptera HUET — , biochemistry, Mammalia MANN — , morphology, Rodentia HRABE mechanism of hormone action, Aves, Rodentia NOUMURA modifications induced by steroids, Teleostei ASHBY morphogenesis & evolution, Amnio ta, Homo MATEJKA Mystacocarida ZAFFAGNINI pathology, Artiodactyla BLOM phallus, Chelonia, Lacertilia, Ophidia RAYNAUD prostate, postnatal, electron microscopy, Rodentia FLICKINGER regeneration & differentiation, role of neurosecretion, Trematoda, Turbellaria GRASSO shell gland, Ca transport, endocrinology, Aves HEERSCHE spermatheca, electron microscopy, effect of endocrines, Orthoptera HARTMANN Teleostei ASHBY HYODO RESPIRATION see also Metabolism anaerobiosis, oocyte, Anura Anura blastocyst, Lagomorpha Diptera, Lepidoptera early stages, Anura VALDEZ LEGNAME TORRES FOURCHE HAMBURGER — , part, relation with oxidative phos- phorylation, Teleostei CHANCONIE D EVILLF R S egg & embryo. Gastropoda GEILENKIRCHEN — , relation with embryonic mortality, Artiodactyla TORRES embryo, Ascidiacea D'ANNA fertilization, Echinoidea NAKAZAWA hypoxia, morphogenetic & biochemical effects, Aves GRABOWSKI neonatal, Artiodactyla, Homo GEBHARDT Oligochaeta LOVTRUP relation with glycolytic enzymes, Teleostei BOULEKBACHE RESPIRATORY TRACT larynx, fetal, experimental study, Artio- dactyla, Rodentia TOWERS — , fetus through adult, Homo DICKSON tonsils, vascularization, Homo KLEISS RETICULOENDOTHELIAL SYSTEM see Macrophage system RHESUS FACTORS see Immunology RIBONUCLEIC ACID see also Nucleic acids 9s, Echinoidea BIRNSTIEL activation during cleavage, Echinoidea WILT biochemistry & function, Aves GOTTSCHLING causing tissue transformation, Aves NOTO characterization during development, Anura KOHL during differentiation, Anura JANTZEN embryonic cells, dissociated, effect of induc- tive agents, Amphibia IYEIRI exogenous, effect on embryo & cell culture, Aves McKENZIE from heart, effect on heart forming area, Aves NOTO gastrula, ectoderm, induced and non-, Anura THOMAS hormone action & metamorphosis, Lepi- doptera WYATT implantation, Rodentia SEGAL localization in embryo, autoradiography, Gastropoda, Polychaeta ANDERSON m, maternal in egg, Echinoidea HARRIS — , synthesis, Rodentia CHURCH — , — base composition, Aves DESVEAUX SORIANO — , unfertilized eggs, Echinoidea RINALDI metabolism, Amphibia, Aves TIEDEMANN — , oocyte in vitro, Mammalia CROSS mitochondrial, egg, Echinoidea PIATIGORSKY nuclear, hormonal control in salivary gland, Diptera ALONSO — , metabolism, early stages, Echinoidea LOVTRUP nucleolar, myoblast, normal & dystrophic, Aves, Homo, Rodentia JANS ROSS oogenesis, Hemiptera SCHELLER WINTER — , electron microscopy, Anura THOMAS relation to mitotic cycle changes, early stages, Echinoidea, Teleostei, Vrodela ROTT onset of hemoglobin synthesis, Vrodela GRASSO — — protein synthesis, early regeneration, Oligochaeta LECHENAULT ribosomal, DNA, Diptera SOFER — , gene amplification, oogenesis, Coleoptera, Diptera SCHAFER — , regulation, biochemistry, autoradio- graphy, Diptera KIEFER — synthesis regulation, Anura YAMANA salivary gland, Diptera ELLGAARD stage-specific, cell & organ culture, Anura ROLLINS synthesis activation, iris, in vitro, Vrodela REESE — & processing, cell differentiation in vitro, Aves COLEMAN — , animalized embryos, Echinoidea OZAKI — , autoradiography, neural crest in vitro, Anura ANDREW GABIE — , cleavage, Echinoidea KANKI — , continuous, chondrocytes in vitro, Aves SOLURSH — , control, Anura KOHL — , — by proteins, eye lens fibre cells, Artiodactyla ELMER 303 RIBONUCLEIC ACID (contd.) — , — — tissue interaction, Vrodela STOCUM — , differentiating cells, E.M. autoradio- graphy, Amphibia JACOB — during early embryogenesis, relation to energy metabolism, Teleostei, Utodela CRAWFORD synthesis, Echinoidea WARTIOVAARA WILT — , early stages, Echinoidea GIUDICE PIRRONE SCONZO — , , Gastropoda BIGGELAAR COLLIER — , , Insecta SCHNETTER — , effect of folic acid, kidney, Rodentia KOHL — , thyroxine, Anura RYFFEL SCHIBLER WEBER — , egg, Invertebrata RITSCHARD — , embryo, Ascidiacea FROMSON PUCCIA — , — , Echinoidea HUMPHREYS — , embryonic skin, Axes, Rodentia SORIANO — in cell aggregation, Amphibia GRUNZ — — egg & later stages, Hemiptera FORREST metamorphosis, role of ecdysone, Diptera SEKERIS mitochondria, Echinoidea RINALDI — — vitro, Anostraca CLEGG — , kidney & liver cells, in vitro, Rodentia NAGATA — , metabolism & function, erythroblast, Hela-cells in vitro, Aves, Homo SCHERRER — , oocyte, Vrodela LACROIX — , oogenesis, Echinoidea PIATIGORSKY — , — , electron microscopy, autoradio- graphy, Lepidoptera BERRY — , pattern & significance, Lamelli- branchia — primed by isolated chromatin, Echi noidea — , regenerating liver, Rodentia — , — tissues, Amphibia — , regulation, part, muscle cells, Aves — , ribosomes, Echinoidea — , — , oogenesis, Teleostei — , role in limb regeneration, — , submandibular epithelium tia tissue-specific, control of synthesis, Anura ROLLINS transcription, neural tissue, Lagomorpha, Rodentia CHURCH transfer & synthetase, role in phosvitin synthesis, Aves GERLINGER — , embryo & placenta, Rodentia SIRLIN — , isoaccepting, Rodentia RENNERT — , isoleucyl, effect on hemoglobin pro- duction, Rodentia RENNERT — , isopentenyl-, embryo, Rodentia RENNERT — , metabolism, RNA synthetase, early stages, Echinoidea ANDERSON — , methylation, liver, Rodentia HANCOCK — , role in blastodisc hemoglobin synthesis, Aves WAIN WRIGHT transformation of primarily activated ecto- derm, Vrodela SASAKI translatable, effect op RNAse inhibitors, in vitro, Echinoidea COUSINEAU translation control, Aves BERNFIELD — , myogenic cells JONES transport in egg follicle, Homoptera MAYS RIBOSOMES see Subcellular components SACCUS VASCULOSUS SALIVARY GLAND see Gland(s) SCALE(S) see also Skin development & regeneration, Teleostei ASAKURA regeneration, ultrastructure, mineralization, Teleostei NUSSBAUM role of epidermis & mineralization, Teleostei KREJSA KIDDER OZAKI MUTOLO BURGESS MARCHOK MUTOLO OZAKI Vrodela TASSAVA Roden- BERNFIELD SEMEN see Reproduction (sexual) SENSE ORGANS see also specific organs; Placodes Cetacea SINCLAIR chemoreceptor cells, enzyme histochemistry, electron microscopy, Carnivora, Homo, Rodentia KRAUS — , histochemistry, Lagomorpha, Roden- tia DRUKKER cutaneous, experimental study, Aves SAXOD growth, relation to behaviour, Diptera DEARDEN Herbst's & Grandry's corpuscle, origin, ultra- structure, cholinesterase, Aves SAXOD in mouth parts, Heteroptera PINE! neurons, electron microscopy, autoradio- graphy, tissue culture, cinemato- graphy BREIPOHL peripheral receptors, histochemistry, elec- tron microscopy, Homo, Mammalia CAUNA photoreceptors, Invertebrata EAKIN — , fine structure, regeneration, Nemertea VERNET — , histochemistry, Mollusca KOSHIDA Pinnipedia SINCLAIR relation to central nervous system, in animals with tandem heads, Vrodela BRANDLE sensory evoked potentials, fetus & newborn, Homo . VANZULLI — structures, effect of polarity, Amphi- bia HIBBARD taste buds, electron microscopy, cyto- chemistry, Homo SEVCENKO transplantation, interspecific, Aves OPPENHEIM SERUM see Blood SEX CHROMATIN see Nucleus SEX DETERMINATION see also Sexual development KOSHIDA LUTZ VAN DETH NOTHIGER STAGNI WOYKE GOMOT GRIFFOND inheritance, POULSON Anura RICHARDS POSTLETHWAIT cytology, Aves effect of hormones, Aves genetics, Diptera Hydroidea Hymenoptera Prosobranchia sex-ratio disturbances, maternal Diptera steroid administration to larvae, triploid intersexes, heritability, Diptera SEX DIFFERENTIATION see Sexual development SEX HORMONES see Hormones SEX-RATIO see Sexual development SEX-REVERSAL see Sexual development SEXUAL DEVELOPMENT see also specific sex organs; Reproductive system; Sex determination Anura Aves Bryozoa Chelonia Chondrostei descriptive & experimental study, Cephalopoda different stages, neurosecretion, Poly- chaeta CAMBAR CUMINGE DUBOIS LIMBORGH MARAUD STOLL RANZOLI PIEAU PERSOV ZUBOVA DIGRANDE GRASSO HOFMANN 304 differentiation & maturation, endocrino- logy & genetics, Nemertea BIERNE effect of androgens & antiandrogens, Lago- morpha, Rodentia ELGER — — chemical agents, Aves SALZGEBER — — perinatally administered sex hor- mones, Rodentia SWANSON — — sex & gonadotropic hormones, Lacertilia, Ophidia RAYNAUD — — steroids, Teleostei ASHBY thermal stress, Phasmida BERGERARD endocrinology, Polychaeta HAUENSCHILD freemartin, Mammalia WILLIER — > spontaneous, Aves LUTZ hermaphroditism, Rodentia ALLISON — , gene-conditioned, Rodentia GUMBRECK — , morphology & physiology, Teleostei LISSIA — , sex gradient, Hydroidea, Polychaeta, Turbellaria VANNINI Homo, Rodentia DIAMOND hybrids, Aves DERAY GOMOT Hydroidea STAGNI intersexes, triploid, genital apparatus, Diptera LAUGE Isopoda KATAKURA Oligochaeta SAUSSEY Rodentia TARKOWSKI role of gonadal hormones, Aves, Rodentia NOUMURA sex differentiation after germ cell destruction, Anitra DI GRANDE — — , autoradiography, Anura ZACCANTT — — , chimeras, Rodentia McLAREN — inductors, two types, Lagomorpha, Rodentia ELGER — ratio in parthenogenetic & amphigonic species, Tardigrada BERTOLANI — — , karyotype, Homo SASAKI — reversal, chromosomes, Anura MIKAMO — — , high temperature, Anura HSU YU — — , inhibition by antibiotics, Anura STAGNI VANNINI sexual characters, primary & secondary, Echinodermata TAHARA sexual dimorphism, embryonic, Cladocera GAINO Teleostei PERSOV Vettebrata ASAYAMA SHELL see Egg(s); Integument SHELL GLAND see Integument; Oviduct SHOULDER GIRDLE see Skeleton SKELETON see also specific parts; Bone(s); Cartilage abnormalities, studied by organ culture, Rodentia KONYUKHOV appendicular, x-ray analysis, Aves GOFF carpals in limb regeneration, Vrodela MANNER chondrification, relation with teratogenesis, Homo STRAUSS development & ossification, Artiodactyla, Rodentia RAJTOVA effect of paralysis & amniotic pressure, Aves SULLIVAN exostosis, multiple, Perissodactyla SHUPE formation, role of protein, Echinoidea PUCCI general PRATT hip joint, innervation, Homo DANDRIEU joint capsule, vascular bed, Homo, Mammalia MAZHUGA — , normal & abnormal, Aves DRACHMAN long bones, effect of hypophysectomy, Aves WATTERSON malformations, congenital, Homo CARMONA metamorphosis, electron microscopy, Anura KEMP morphogenesis, Aves, Mammalia, Reptilia BELLAIRS organ culture, morphology & biochemistry, Mammalia SCHRYVER os priapi, fracture healing, effect of castration & androgens, Rodentia BERESFORD ossification age, Homo JIT prenatal ossification, Homo MEYER spicule formation, Echinoidea OKAZAKI , ultrastructure & effect of NaF, Echinoidea HEROLD variation between litters, Carnivora EVANS — due to position in uterus, Carnivora EVANS — in large & small strains, Rodentia TRUSLOVE vertebral column, Aves STRUDEL Vertebrata FRIANT SKIN see also Epidermis; Integument; Pigment(ation); Wound healing Anura KHAN Aves GOPINATH SENGEL cell types in dermis & epidermis, Aves MAUGER comb, experimental study, in vitro & in vivo, Aves LAWRENCE — , malformations after neural crest removal, Aves LAWRENCE cutaneous appendages in xenoplastic chimaeras, Aves, Mammalia DHOUAILLY — nerve pattern, effect of x-rays, Aves MAUGER cutis, ultrastructure, Homo HASHIMOTO derivatives, differentiation, in vitro, Aves, Rodentia KOLLAR — , electron microscopy & biochemistry, Aves, Rodentia KISCHER differentiation, Teleostei PORCELLI TINOZZI — , suppression & stimulation, Aves, Rodentia KOLLAR ecdysis, Reptilia LYNN effect of hormones, Anura, Rodentia HANKE — — hydrocortisone, Aves NOVEL prostaglandins, Aves, Rodentia KISCHER — — x-rays, Aves REYSS electron microscopy, Aves, Vrodela SENGEL embryonic, RNA synthesis, Aves, Rodentia SORIANO enzymes, alio- & homografts, Roden- tia MAKINEN RAEKALLIO epithelio-mesenchymal interactions, Aves CARINCI — — — , histochemistry, Aves, Mam- malia RITSCHARD fetal, carbohydrate & intermediate meta- bolism, enzymes, Homo SERRI — , histochemical changes, Homo CERIMELE — , morphology & physiology, Homo SERRI — , mucoproteins, Homo GIANNETTI glands, Anura KOLLROS innervation, effect of x-rays, Aves SAXOD larval, cytology, Amphibia BYTINSKI LDH isozymes, Rodentia QUEVEDO light & electron microscopy, Teleostei KREJSA Marsupialia LYNE metamorphosis, with & without extra thyroid hormone, Anura BOVBJERG regeneration, embryonic constitution of dermis, Vrodela TRAMPUSCH regional determination, Anura KOLLROS role of axial organs, Aves SENGEL scales, mesoderm-ectoderm interaction, Aves GOETINCK sensory corpuscles, experimental study, Aves SAXOD tissue interactions, Rodentia HORNBY vascularization, part, orifices, Homo, Mammalia CARMONA SKULL (& visceral skeleton) see also Chondrocranium Actinoptetygii JOLLIE Amphibia FRANK Anura PLASOTA Aves SCHUMACHER biometry, Artiodactyla, Carnivora HUBER branchial arches, Rodentia TAMARIN cartilage & bone development, Vrodela CORSIN changes caused by abnormal posture, Rodentia FANGHAENEL SCHUMACHER sound, light, & diet, Lagomorpha, Rodentia FANGHAENEL SCHUMACHER coronal suture, Rodentia MARKENS early development, tissue inter actions. A ves BURDI 305 SKULL (contd.) Elasmobranchi JOLLIE experimental morphogenesis, Aves TONNEYCK frontal bone, regeneration, Teleostei PINGANAUD Homo, Rodentia LAVELLE induction & morphogenesis, Aves ROBADEY SCHOWING jaw, effect of undernutrition, part, protein calory deficiency, Artiodactyla TONGE — , growth after incisor removal, Rodentia KVINNSLAND — , postnatal, Lagomorpha YARD1N — , upper & lower, ossification, Homo KVINNSLAND mandible, dental lamina, regeneration, Vrodela GRAVER — , fracture healing, effect of castration & androgens, Rodentia BERESFORD Meckel's cartilage, Homo, Mammalia FRIANT . — i — >, Mammalia KOLLAR morphogenesis, Aves LIMBORGH — , experimental studies, Amphibia, Aves, Chelonia, Lagomorpha TOEREIN ocular skeleton, Aves COULOMBRE Ophidia SMIT optic fissure, closure mechanics, Aves, Rodentia LATSHAW ossification, Aves HALBA regeneration, Carnivora KANTOROVA — , Mammalia POLEZHAEV — , descriptive & experimental study, Vrodela REYREL Reptilia FRANK Teleostei PINGANAUD temporo-mandibular joint, effect of hyper- vitaminosis A, Rodentia BERESFORD visceral arches, origin, experimental study, Aves LELIEVRE viscero- & chondrocranium, homology, Teleostei COETZER, misspelled as GOETZER SLIME MOLDS see Plant embryology & morphogenesis SOMATIC MUTATIONS see Genetics SOMATIC RECOMBINATION see Cell heredity SOMITE(S) Aves SANDOR chondrogenesis, Aves MINOR differentiation, Aves CHRIST effect of subcommissural organ, Anura HAUSER electron microscopy, Aves MEMIKOGLU formation & differentiation, Anura BRUSTIS GIPOULOUX histology, Anura MACDONALD morphogenesis, Anura BURGESS myosept & myotome, Teleostei RAAMSDONK relation to limb buds, Chelonia, Lacertilia, VASSE role of Hensen's node, Aves NICOLET secondary origin from tail bud, Aves JELINEK self -differentiation, Aves STEDING SPERMATOGENESIS see also Gametes Acari PIJNACKER anomalies, Homo POSINOVEC antigens, cell surface, Rodentia BENNETT Artiodactyla GURAYA chromatin, physico-chemical changes, Teleostei MOAV comparative, Ascidiacea COLOMBERA SALA — , Invertebrata FRANZEN — , ultrastructure, Decapoda KOEHLER cycle, effect of vascular occlusion, Rodentia LAKSHMANAN cytochemistry, electron microscopy, Hydroidea STAGNI diploid drones, Hymenoptera WOYKE diurnal cycle, histology, Rodentia TIBA electron microscopy, Acarina, Chilopoda BREUCKER HORSTMANN , Anura POIRIER — — , Echiuroidea, Gastropoda, Sipuncu- loidea SAWADA , Nematoda BEAMS , Teleostei KOEHLER & biochemistry, Diptera KIEFER & cytochemistry, part, ribosome aggre- gation & discarding, Orthoptera WATSON , di- & polyploid, Lepidoptera DANILOVA VEREISKAYA flagellum formation, enzymes & organelles, Artiodactyla, Rodentia NELSON Hirudinea PASTISSON histones, Diptera BOLS KASINSKY — transformed to protamines, Teleostei AVIVI MOAV immunological impairment, Rodentia BISHOP kinetics, Carnivora TIBA Mammalia HARRISON SCHUETZ meiosis, Homo, Rodentia POLANI molecular mechanism, Y chromosome gene function, mutations, Diptera SANDERS mutants, Rodentia BRYAN Orthoptera RADECKA Phasmida PIJNACKER Platyhelminthes HENDELBERG Primates GURAYA radiosensitivity, cytological studies, Lepidoptera IWASAKI relation to genetics, Diptera , TOKUYASU role of Golgi complex, Echinodermata, Lamellibranchia, Teleostei DAN — — neural complex, Ascidiacea GEORGES Sertoli cells, Rodentia MERKLE spermatid, bioelectrical potential, Artio- dactyla, Rodentia NELSON spermatogonial population, growing animals, morphology & cell cycle times, TI¥T~„TXTC Rodentia HUCKINS — — , prepuberal animals, growth & renewal, Rodentia CLERMONT SPERMATOZOA see also Gametes acrosomal enzymes, Rodentia POIRIER — formation, components & reaction, Echinodermata, Lamellibranchia, Teleostei DAN activation, natural & artificial, Xiphosura SHOGER antibodies, Homo BEHRMAN antigens, location, Anura SHAVER apyrene, differentiation & function, Lepi- doptera FRIEDLANDER behavior, effect of chemo-attractant, Hydrozoa Mtcdcc biochemistry, Mammalia HARTFREE capacitation, Anura COULSON — , Rodentia SZYBEK — , mechanisms, Carnivora, Lago- morpha Mclaughlin — , role of steroids, Mammalia HAMNER comparative study, Invertebrata FRANZEN — i — , ultrastructure, Decapoda KOEHLER contractile mechanisms, protein, Mamma- lia BISHOP effects of light, Mammalia NORMAN electron microscopy, Acarina, Chilopoda BREUCKER HORSTMANN ( Aves BOONE ,' Primates, Rodentia FRANKLIN , normal & pathological, Artiodactyla BIRCH BLOM fluorescence microscopy, Lagomorpha HOLSTEIN freezing, protective effect of glycerin, __ ^TT^ Amphibia ROSTAND in vitro, effects of pH on metabolism & fertilizing capacity, Mammalia NORMAN irradiation, effect on zygote development, Lagomorpha DOTT maturation, capacitation & interaction with egg, Mammalia TEICHMAN metabolism, Homo 52?iSlE KRAICfcK — & fertilizing capacity, effect of oviduct secretions, Lagomorpha HAMNER motility, control mechanism, Artio- dactyla RIKMENSPOEL nucleotides, acid-soluble, Echinoidea ISONO phosphagens, Echinodermata YANAGISAWA position in storage organs, Hymenoptera LENSKY 306 relation with ductus epididymides, Homo, Mammalia HORSTMANN — — lysosomal enzymes, Mammalia DOTT transport, Lagomorpha ADAMS — , ductus epididymidis, Rodentia MACMILLAN — in female, Lagomorpha, Primates CLEWE SPERMIOGENESIS see Spermatogenesis SPINAL CORD centres, Anura KOLLROS development, Homo, Marsupialia HUGHES dorsal cells, differentiation, Teleostei MARINI early neurogenesis, Rodentia HINDS effect of increase & decrease of peripheral innervation, Axes MITOLO electron microscopy, Rodentia VAUGHN , fetus, Homo GAMBLE experimental embryology, Axes STEDING growth rate, relative to vertebral column, Homo BARSON histology & histochemistry, Anura NIAZI medulla oblongata, fibre pattern, experimen- tal studies, Urodela JACOBSON mitotic activity, hatching, Aves OPPENHEIM projection of neural structures, neuro- embryology, Mammalia DAS SPLEEN chorio-allantoic grafts, host reaction, Aves MUN correlation with body dimensions & surface area, Homo SPENCER graft, embryonic transfilter growth, stimulation by adult spleen, Aves MUN hormonal control, Aves BETZ immunofluorescence, Homo IVEMARK Mammalia SPENCER regeneration, Rodentia KHARLOVA — , Vertebrata ASNANI BONNY SHAH STATIC ORGAN Cephalopoda SACARRAO functional maturation, postnatal, Carnivora MARTY STERILITY see Fertility (& sterility). STEROIDS see also Cortisone; Hormone(s) androgens & antiandrogens, effect on sex differentiation, Lagomorpha, Rodentia ELGER estrogens in gonads, Aves WOODS — , effect on fracture healing, os priapi & mandible, Rodentia BERESFORD — , placenta, Rodentia OKKER binding in salivary gland cells, Diptera EMMERICH corticoids in adrenals, Aves WOODS — , placental transfer, Artiodactyla, Lago- morpha BERTON dexamethasone, effect in vivo & in vitro, Lagomorpha, Rodentia RUCH effect of estrogen or testosteron on sex of adult, Anura RICHARDS — on blastocyst implantation & uterus, Rodentia PRESLEY development, Rodentia RICHTER growth & differentiation, Anura, Aves WURMBACH regeneration, Lagomorpha JOSEPH — — sexual differentiation, Teleostei ASHBY maturation of brain, Rodentia ADAMS MARKWALD estrogen, yolk protein induction in males, Anura TATA gonadal, Amphibia, Mammalia SCHUETZ — , effect on uterus, seminal vesicles & prostate, Rodentia SPAZIANI histochemistry, gonads & adrenals, effect of hypophysectomy, Aves WOODS induction & ovalbumin synthesis, Aves PALMITER SCHIMKE placental & foetal, Carnivora, Edentata BRINCK progesteron synthesis, placenta, perfused, Homo CEDARD GUICHARD role in follicle ripening, Homo, Rodentia LUDWIG sperm capacitation, Mammalia HAMNER sex-reversal, inhibition by antibiotics, Anura STAGNI VANNINI synthesis in immature gonads in vitro, effect of HCG, Aves CEDARD GUICHARD — — perfused placenta, effect of gonado- tropins, Homo CEDARD testosterone, effect on ovary, Rodentia PETERS STOMACH Lagomorpha DAVID regeneration & cell division, Rodentia TIMASHKEVICH ultrastructure & enzymology, Aves SIGOT SUBCELLULAR COMPONENTS annulate lamellae, Lagomorpha, Rodentia GULYAS blastula, supporting protein synthesis, Anura GRANGER centriole replication & separation, Echinoidea HARRIS cilia & stereocilia, structure, Echinoidea MILLONIG development, molecular assembly SIMON egg inclusions, origin & function, Anura, Urodela TOMPKINS endoplasmic reticulum & ribosomes, pan- creas, Rodentia HACH — — , cement gland, Anura JACOB — — membrane, enzymes, Rodentia WIDNELL fibrillar proteins CRICK germ cells, effect of antibiotics, Orthoptera TAHMISIAN Golgi complex, role in spermatogenesis, Echinoidea, Lamellibranchia, Teleostei DAN inclusions, speed of movement, myoblast, Rodentia PARSONS influence on gene transcription, Amphibia, Gastropoda GEUSKENS intestine, Rodentia VOLLRATH lysosomes, effect of alkylating agents & irradiation, Aves TEMPEL — , — on fat body cell death, Diptera BUTTERWORTH — , head regeneration, Oligochaeta LECHENAULT — , role in cell death, metamorphosis, Anura, Hemiptera GOLDSMITH membranes, ATP-ase, brain, Aves SEDLACEK STASTNY — , structure & function, Amphibia, Aster oidea SCHUETZ microfilaments, gonangium, Hydrozoa MILLER microsomes, function, Rodentia YUKAWA microtubule, eye lens, Aves PIATIGORSKY — , nerve tissue, biochemistry FRIEDKIN — proteins, immunology & thiol-disulfide exchange, Echinoidea KIMURA — , role in cell shape, columnar epithelium, Aves, Urodela BURNSIDE mitochondria, adipose tissue, Rodentia BARNARD — , biochemistry, egg & embryo, Anura PETRUCCI — , DNA & RNA synthesis, kidney & liver cells, in vitro, Rodentia NAGATA — , early stages, Teleostei BOULEKBACHE — , egg, Echinodermata, Polychaeta MAJORCA — , embryo, Anura FERNANDEZ LEGNAME SALOMON — , — , chemical treatment, Echinoidea HEROLD — , — , comparative biochemistry & ultra- structure, Anura KISTLER WEBER — , energy transfer system, Rodentia NAKAZAWA — , muscle, Artiodactyla LEESON — , protein synthesis, early stages, Anura SWANSON — , queens & workers, Hymenoptera REMBOLD — , regulatory role, Lepidoptera WARREN — , relation to developmental potentiality, intestinal epithelium, Anura MACDONALD — , — — M-DNA, Rodentia WEBER WELLAUER — , RNA synthesis, Echinoidea RINALDI myofibrils, heart, Aves FISCHMAN myotube formation in vitro, Aves NISHIZU 307 SUBCELLULAR COMP. (contd.) neurotubules, biochemistry & role in diffe- rentiation, neuroblastoma cells, in vitro, Rodentia ROSENBAUM nuclear membranes, Hela cells, Anura JACOB oogenesis & early development, Amphibia NEDVIDEK VILIMKOVA peroxisome, egg, Anostraca ROELS polyribosomes, Anostraca, Echinoidea TERMAN — , Anostraca CLEGG — , Anura DECROLY ribosomes, Anura GASTON — , aggregation & discarding, spermiogenesis, Orthoptera WATSON — , configurations, egg & embryo, Anura HAY — , control of formation, oocyte, Echino- deimata, Lamellibranchia VINCENT — , dissociating factor & initiation of protein synthesis, Anura DECROLY — , histone synthesis, early stages, Echinoidea MOAV — , hormone action & metamorphosis, Lepidoptera WYATT — , in vivo & in vitro, Aves GOTTSCHLING — , membrane association, Roden- tia WARTIOVAARA — , myoblast, Aves, Homo, Rodentia MOORE — , oogenesis, Anura FORD — , origin & assembly, genetics, Diptera STEFFENSEN — , proteins, oogenesis, Echinoidea COGNETTI — , RNA & DNA, Diptera SOFER — , — synthesis, Echinoidea MUTOLO — , structure & function during cell diffe- rentiation, Anura FORD — , synthesis control, oocytes, Orthoptera ALLEN spermatozoa, organelle reorganization in flagellum formation, Artiodactyla, Rodentia NELSON time-lapse-microcinematography, early stages, Diptera WOLF tonofilaments, epidermis, effect of cyto- chalasin, Teleostei BEREITER SUBCOMMISSURAL ORGAN see Brain SUCKER see Gland(s)-adhesive SUGARS see Carbohydrate(s) SULFHYDRYL GROUPS in eggs, UV-irradiation, Echinoidea IKEDA inhibiting substances, effect on embryo, Arachnoidea EHN intracellular distribution, Anura NORMAN role in induction, Aves MULHERKAR primary induction, in vitro, Aves RAO thiol-disulfide exchange, microtubule proteins, Echinoidea KIMURA SWIM BLADDER see Lungs SYMMETRY (& asymmetry) see also Gradient(s) asymmetry, limb weight, Homo SINGH bilateral, determination, Aves, Pisces, Reptilia CLAVERT blastoderm, unincubated, causal study, Aves MACARAK effect of polarity on differentiation, sensory structures, nerve fibres, Amphibia HIBBARD egg rotation in utero, Lacertilia RAYNAUD handedness, origin, Gastropoda RAVEN major & minor, molecular basis, Vertebrata WILDE polarity, eye, Anura FELDMAN TAIL see also Regeneration (traumatic) Aves GOLDIE bifurcate, Lacertilia WERNER bud, origin of neural tube & somites, Aves JELINEK degeneration, electron microscopy, Anura FOX fin, origin of collagen, Anura, Urodela GONA labyrinthine mutant, Rodentia McNUTT metamorphosis, collagen fibre resorption, A nura ITO — , lysosomes, Anura KALTENBACH primordium, role in body formation, Anura, Aves, Rodentia VACEK regeneration, early stages, Anura BRUSTIS — , polarity, Lacertilia BRYANT resorption, in vivo & in vitro, biochemistry, role of hormones, Anura DERBY transplantation, hetero- & xenoplastic, Anura KATO TEMPERATURE abnormal, effect on development, Diptera BRUST effect on chromosome puffing, Diptera DORR — — development, Copepoda LESCHER — — diapause, Diptera BRUST — — duration of embryonic development, Lacertilia WERNER egg & larva, Teleostei BRAUM embryo, Orthoptera PENER — — embryonic & postembryonic deve- lopment, Diplopoda JUBERTHIE — — ultrastructure & immunomorphology of embryo, Aves CRACIUN PREDA — — vertebrae number, Lacertilia WERNER heat generation, egg, Lepidoptera PAVE high, adaptation, Nematoda BRUN — ', induction of sex reversal, Anura HSU YU imaginal teratogenesis, Diptera HORSFALL interaction with effect of ionizing irradiation on embryo, Teleostei WADLEY WELANDER sensitive mutants, Diptera SCHUBIGER thermal stress, effect on development, Orthoptera BERGERARD , gonad, Diptera LAUGE , sex differentiation, Phas- mida BERGERARD tolerance, larvae, Teleostei GRODZINSKI TERATOGENESIS (experimental) see also specific teratogenic agents; Anomalies (early development); Drugs, Malformations; Pathology; Thalidomide aminoguanidine sulfate, Aves WATTERSON anti-brain antibodies, Aves FRIEDMAN antihistamines, mitomycin & glutamate, Aves KING antimalarial drugs, Aves SULLIVAN antimetabolites, Diptera SCHARLOO — , Rodentia MERCIER TUCHMANN — , maternal & embryonic metabolism, Echinoidea, Rodentia SKALKO antimitotics, Rodentia JONEJA Anura WURMBACH artificial sweetners, Aves VENEZIANO Aves FRITZ HORVATH MOLD SCHOWING WURMBACH Aves, Rodentia MARTIN barbituric compounds, biochemistry & ultra- structure, Aves OJEDA biochemistry, Aves, Carnivora, Rodentia SCHULTZ bio-energetics as affected by teratogens, Ave s KAPLAN blood-brain-barrier, Lagomorpha, Rodentia NAKAMURA by external medium, Amphibia ROSTAND carbonic anhydrase inhibitors, mechanism of action, Rodentia LAYTON cardio-vascular, part, trypan blue, Aves STEPHAN — system, morphology, histochemistry, organ culture, Rodentia MONIE cell death, Rodentia SCHWEICHEL central nervous system, Aves ALEXANDRU — — — , electron microscopy, Rodentia HAYASHI centrifugation of eggs, effect of temperature, Diptera YAJIMA chemical, Aves LANDAUER — , Aves, Mammalia GABRIEL 308 — , Primates TANIMURA — , Rodentia HOSHINO KAMEYAMA RICHTER — , cleft palate, Lagomorpha, Rodentia WALKER — , heart, Rodentia ADAMS MARKWALD — , in vitro, Rodentia GUNBERG — interaction with mucopolysaccharide synthesis, Rodentia LARSSON — , part, effect on placental function, bio- physics, histochemistry, autoradiography, electron microscopy, Rodentia KERNIS — , pre-implantation stages, in vivo & in vitro, Rodentia MITCHELL chemicals applied during cleavage, Mam- malia GOTTSCHEWSKI cleft Up & palate, genetic & environmental factors, Homo, Rodentia JOHNSTON — ■ palate, effect of chemicals, Lagomorpha, Rodentia WALKER , role of sulfated mucopolysaccharides, uptake of tritiated thymidine, Roden- tia COLEMAN cortisone, antimitotics, Axes, Mammalia CLAVERT — , thymus, Rodentia ROSS cyclamate, saccharin & glutamate, Homo, Primates REYNOLDS cytochalasin, Aves SMITH dimethylsulf oxide as solvent, Aves LANDAUER dinitrophenol in blastula, effect on brain, Teleostei CHANCONIE CLAIRAMBAULT drugs, Lagomorpha, Rodentia PERSAUD — , Rodentia DRUGA — , chemical protection KERNIS — , combined with other factors, Mam- malia STAPLES — , test, Primates NISHIMURA TANAKA early stages, Aves, Rodentia AMELS SANDOR experimental BINNS BRYDEN external factors, Aves MENKES eye, biochemistry, Rodentia PRITCHARD — , iris & ciliary body, Rodentia STROEVA fluoride, Artiodactyla SHUPE galactoflavin, Rodentia SHEPARD glutamate, effect on brain, Rodentia INOUE MURAKAMI heart, Aves, Rodentia LAANE LOS ROEST heavy metals, Rodentia CARPENTER FERM herbicides, Aves LANDAUER — , Hymenoptera WURMBACH LADAS — & pesticides, Rodentia YASUDA hereditary anophthalmia, Rodentia CHASE hormones, Aves, Rodentia VAN DETH hyper- & hypoadrenocorticalism, maternal, Rodentia HOAR hypervitaminosis A, Rodentia KNUDSEN hypoglycemic sulfamides, Rodentia MERCIER TUCHMANN hypovitaminosis D, Aves ORTMANN hypoxia, biochemical analysis, Aves GRABOWSKI imaginal, by thermal stress, Diptera HORSFALL in explanted embryo, Aves KLEIN in vitro, Rodentia KAITILA LAHTI SAXEN SHEPARD TANIMURA inhibitors of nucleic acid and protein meta- bolism, Aves PIERRO insecticides, Rodentia MANKOWSKA — , early stages, Teleostei BOULEKBACHE juvenile hormone, Aves, Mamma- lia KRISHNAKUMARAN Lagomorpha STAPLES limb, Aves SALZGEBER — buds, Rodentia FRITTS — , nitrogen mustard, thalidomide, Ave s SALZGEBER lung & muscles, Rodentia NOACK Mammalia FRITZ LUTWAK SELLER WOOLLAM maternal metabolic status, Lagomorpha, Rodentia GOTTSCHEWSKI — vitamin E deficiency, role of hor- mones, diets etc., Rodentia KING medicinal plants, Lagomorpha, Rodentia PERSAUD methyl mercury, Rodentia MOTTET microsurgery, effect on skull, CNS & sense organs, Aves TOERIEN model systems, Echinoidea, Rodentia SKALKO muscle relaxants, Rodentia JACOBS nervous system, Rodentia GIROUD , irradiation, Mammalia WENDER — — , morphology, histochemistry, organ culture, Rodentia MONIE neural epithelium, nuclear migration, auto- radiography, Aves CORLISS neuroleptic drugs, Mammalia MERCIER neuromuscular blocking agents, effect on limb & growth, Rodentia SHORO nicotine & Pb, heart, Aves GILANI organogenesis, Rodentia ZIMMERMANN parathion, physiology, histochemistry, elec- tron microscopy, Aves MEINIEL peripheral nervous system, Roden- tia SCHWEICHEL pesticides, Aves BRUEL LUTZ — , Chelonia MITCHELL praedifferentional stage, Rodentia DRUGA psychotropic drugs, Lagomorpha SCHLOOT pyrimethamine, Mammalia COLEMAN relation with chondrification, Homo STRAUSS — — fluid & electrolyte balance, Aves, Mammalia GRABOWSKI — ' — oncogenesis, Rodentia KALTER Rickettsia, Rodentia GIROUD MARTINET RNA-se, Aves LANOT Rodentia CSABA HORVATH MERKER MOLD PACKER STAPLES TORO role of physiological & induced necrosis MENKES rumpless phenocopy, Aves GOLDIE steroids, Rodentia RICHTER strain differences, Rodentia TAKANO streptococcal toxins, Rodentia MANKOWSKA stress, combined with other factors, Mammalia STAPLES syndactylism, experimental, histochemistry, Rodentia MILAIRE TEM, interaction with Polydactyly gene, Rodentia KOCHER teratogenic antisera, Rodentia JENSH teratogens, effect on chromosomes, Rodentia HORVATH — , effect on inductive-responsive systems in vitro, Aves, Rodentia JOHNSON — , primordia differentiation, Rodentia POLACK thalidomide, Homo LENZ therapeutical use of metabolites & anti- metabolites, Rodentia CHAMBERLAIN thermal stress, Diptera BRUST thyroid hormones, Aves FAUCOUNAU tissue antibodies, Aves, Rodentia McCALLION tranquilizers, effect on nervous system, Lagomorpha, Rodentia DOMAC Triton WR 1339, Mammalia ROUSSEL trypan blue, Aves LANOT — — , Carnivora, Rodentia BECK ., Rodentia KNUDSEN , spina bifida, autoradiography, Rodentia LENDON with & without teratogenic antisera, Rodentia JENSH urethan, early stages, Rodentia DAMJANOV SOLTER urogenital system, morphology, histochemistry, organ culture, Rodentia MONIE UV irradiation, Diptera YAJIMA various drugs, thalidomide, Lagomorpha, Rodentia, Urodela JOHNSSON Veratrum, inducing cyclopia, Artiodactyla EVANS Vertebrata TORO vinblastine, Blattariae, Diptera, Teleostei, Turbellaria FRANCOEUR virus, Aves ROBERTSON — , Rodentia CARPENTER 309 GAILLARD WEISS GAILLARD GAILLARD SALAUN SMITH GAILLARD pro- SALAUN STEVENS TERATOGENESIS (exp.) (contd.) — , diarrhea, Artiodactyla SCOTT — . mumps & panleukopenia, Carnivora SCOTT vitamin A, Anura MIGLIORINI — — , effect on auditory organ, Rodentia HAY£^l — — , thymus, Rodentia ROSS — deficiency, Rodentia GIROUD x-rays, protection by serotonin, Rodentia SREBRO TERATOLOGY see Anomalies (early development); Malformations TERATOMA(S) blastomas, Homo cell culture, Mammalia comparison with early normal stages. Homo embryomas & dysembryomas, Homo — >, effect of tumor extra-embryonic structures, Homo homo- & heteroplastic, experimental duction, Aves, Rodentia testis, Rodentia TESTIS antigens, Rodentia TAKEUCHI descent, histology, biochemistry, tissue culture, Mammalia WENSING disorders, Homo POSINOVEC enzymes, Mammalia BISHOP DALCQ eubernaculum testis & testicular descent, Homo, Primates BACKHOUSE Homo HOLSTEIN Insectivora ABRO Leydig cell, comparative study, Primates, Rodentia KRAUS tumour, culture & functional capa- cities, Rodentia POURREAU Mammalia SCHUETZ morphogenesis, Artiodactyla JANTOSOVICOVA pathology, Artiodactyla BLOM pigmentation, genetic control & ultra- structure, Lepidoptera GOTTLIEB reaction to antigens, Aves KANKAVA reticulin fibers, Homo POSINOVEC tissue culture, Homo HORSTMANN THALIDOMIDE effect on development, Aves SPIROFF — — embryo, Lagomorpha, Rodentia, Urodela JONSSON embryopathy in relation to time of intake, Homo LENZ inhibition of bone induction, Rodentia RINALDI SCHREIBER limb malformations, Aves SALZGEBER THEORETICAL BIOLOGY (developmental) automata & language theory, developmental instructions for cell interaction & division LINDENMAYER biomorphosis PFLUGFELDER cellular basis of pattern formation, Amphi- bia, Aves, Hydrozoa WOLPERT computer analysis of cell replication & nuclear degeneration, eye lens, Aves LEVER MODAK UPPULURI — program for reconstruction of organ structure WILDE — simulation, branching filaments, Algae, Fungi LINDENMAYER , neural plate, Urodela JACOBSON of colony growth, Hydrozoa BRAVERMAN — — — embryonic development BEZEM RAVEN biological patterns COWE WADDINGTON cybernetic developmental model systems POHLEY cybernetics, Aves, Rodentia ELLAS factorial analysis, as applied to morpho- genesis, Hemiptera PONTIER gene differentiation NOTO growth models MITOLO information theory, application to oogenesis & embryonic development RAVEN microscopic particles, non random arrays, Desmidiales . ££F?Jt LACALLI probabilistic processes, role in cellular diffe- rentiation, Aves, Rodentia WILDE systems analysis of colony pattern, ____.M Hydrozoa BRAVERMAN THORACIC CAVITY see Body cavities THYMUS CelA0"Srati°n & mi8rati°n' HINRICHSEN effect of teratogens, Rodentia ^,-c^P^v immunofluorescence, Homo IVEMAKK organ culture, Aves FOOTE regeneration, Rodentia KHARLOVA role in immunity, Anura VOLPE immunocompetence maturation, Anura MANNING THYREOSTATIC AGENTS see Thyroid gland THYROID GLAND see also Thyroxine before & after metamorphosis, Urodela PRAHLAD calcitonin cells, experimental study, „„».„„, Aves LELIEVRE correlation with body dimensions & surface area, Homo SPENCER embryonic, physiology, Aves ^^?^H5 experimental study, Aves LE DOUAKIIN function, Cyclostomata WATERMAN — . hypothalamic control, Lagomorpha, Rodentia MITSKEVICH hormones, teratogenic action, Aves FAUCOUNAU hypo- & hyperthyroidy, effect on pro- & mesonephros grafts, Anura FOX organic iodine compounds, Chelonia DIMOND role in limb regeneration, Anura NIAZI structure & function, Vertebtata WATERMAN ultrastructure, Vertebrata PEHLEMANN Vertebrata LEBLOND THYROXINE biochemical effects, embryo & adult, Urodela PRAHLAD effect on growth & differentiation, Anura, Aves WURMBACH — — , Umb regenerative capacity, larva, Anura VAN STONE — — liver cells in vitro, Anura SOLURSH metamorphosing skin, Anura BOVBJERG mitosis, central nervous system, Amphibia BAFFONI pigment cell differentiation, Anura GABIE proportionate development of limb bones in vitro, Aves LAWSON — — tail resorption, Anura DERBY tissues, biochemistry & morphology, Anura PRA]££? inducing metamorphosis, Anura TATA in liver, biochemistry, Anura COHEN — , local action, Anura KALTENBACH induction of metamorphic competence in early stages, biochemistry, Anura TATA interactions with gonadotropins, Amphibia, Aves FRYE mechanism of action, Amphibia HART WIG relation with development, Urodela TASSAVA RNA synthesis, tadpole, Anura RYFFEL SCHIBLER WEBER sensitivity of embryonic tissues, Urodela PRAHLAD — — metamorphosis, genetics, Urodela TOMPKINS — , larval tissue, Anura ETKIN uptake & localization in tissues during metamorphosis, Anura REYNOLDS TISSUE(S) differentiation, effect of x-rays, Urodela PETERS — , in vitro, relation to developmental potential & stage, Lepidoptera BROOKS 310 dissociation, cell viability in vitro, Axes WHITE effect of thyroxine, biochemistry & morpho- logy, Anura PRAHLAD embryonic, morphology & enzymes, Amphibia, Axes BOELL extracts, inhibitory effect on homologous organs, Axes THOMPSON formation by aggregating cells, Axes, Rodentia KURODA interaction, comb, grafts, Axes LAWRENCE — , lens induction, Axes MIZUNO — , role of collagen, Axes HAY — , skin & hair, Rodentia HORNBY — , skull, Axes BURDI organization & interaction, role of cell surface determinants, Rodentia PRITCHARD regression, development & ageing, Axes, Homo, Rodentia HAY specific proteins, Diptera, Lepi- doptera IMBERSKI subcellular fractions, effect on organ growth, Rodentia STERN transformation by RNA, Axes NOTO transplantation, Anura KOYAMA TISSUE CULTURE (& cell culture) see also Cell(s); Culture (egg, embryo etc.); Organ culture Ascidiacea WATANABE autonomic nervous system, peripheral, Axes, Rodentia PRESLEY binucleate cells, origin, Axes BARASA blastula & gastrula cells, tissue specific enzymes, tryptophan metabolism, Anura KOSTELLOW blood cell differentiation, Axes CURY brain & retina cells, growth cones, Anura COOKE cancer cells, effect of heavy metals, Rodentia AMONS cartilage, monolayer, comparison of different types, Axes LEVENSON — , — , effect of vitamin C, Axes LEVENSON cell behavior, effect of donor age, Axes LEFFORD , morphogenetic agents, Axes WESTON — , contacts & movements, Anura, Axes, Teleostei TRINKAUS — degeneration, Axes, Homo, Rodentia HAY — , development & cytology, Diptera DOLFINI — differentiation, Axes NIIZIMA , Hydrozoa SCHMID , Vertebrata CURTIS , relation to developmental potential & stage, Lepidoptera BROOKS — , effect of exogenous RNA, Axes McKENZIE — , hydrocortisone, Axes WHITE — , fetal & adult, longevity, Mammalia RAFFERTY — , hormone dependent, Mammalia SATO — , infected by microorganisms, in vitro, Blattariae BROOKS — lines, Diptera BARIGOZZI HALFER — motility & cell division ALLEN & ultrastructure, Amphibia FREED — relations, Axes, Rodentia ABERCROMBIE HEAYSMAN PEGRUM — types, separation, Porifera NIKITIN central nervous system, part, cerebellum & cortex, Axes, Rodentia MELLER chondrocytes, differentiation & biochemistry, Axes KVIST — , sternal, differentiation, growth hormone, RNA, collagen, Axes SOLURSH contact inhibition of mitosis & cell movement STEINBERG , synchronous fibroblast populations, Axes McKIEL cytochimeras, cells of different classes, Axes, Rodentia WILDE dental papillae cells, Mammalia KOLLAR — tissues, Homo, Mammalia NIIZIMA differentiation in presence of electrophoretic fractions of specific primordia & cells, Urodela WILDE DNA replication, Diptera BARIGOZZI HALFER effect of age on nuclear size, Axes, Rodentia KRANTZ embryonic & other cells, formation of adhesion EDWARDS — cells, Diptera ROSALES SANG SEECOF — — , adhesiveness, Axes PHILLIPS — — , aggregation factor, Echinoidea KONDO , differentiation, Urodela BEETSCHEN DUPRAT , effect of RNAse inhibitors on trans- latable RNA & proteins, Echinoi- dea COUSINEAU — — , reaggregates, segregation mechanisms, Vertebrata CURTIS , surface properties & behaviour, Axes MOORES — tissue, Orthoptera, Phasmida KOCH — — , carbohydrate metabolism, Axes DYER energy transfer in cellular interactions, Axes, Rodentia REPORTER enzyme induction & repression GUSTAFSON , Homo ELIASSON — synthesis, regulation in vitro, Homo JOHANSSON — variants, genetics & epigenetics, Rodentia RUDDLE epidermis, keratinization & cytochalasin effect on tonofilaments, Teleostei BEREITER epithelial cells, locomotion & behaviour, Axes, Rodentia MIDDLETON epithelium, submandibular gland, induction & morphogenesis, Rodentia BERNFIELD erythroblast, RNA, Axes SCHERRER eye lens, Amphibia EISENBERG , differentiation, Axes KATOH — — fibre differentiation, Axes KAWAKAMI — — , macromolecules, Axes YOSHIDA — — , redifferentiation, Urodela YAMADA fetal tissues, immunology, Homo ADINOLFI fibroblasts, identification, Axes, Homo, Mammalia NIIZIMA heart cells, spontaneous activity, Axes DeHAAN — , maintenance of differentiation, Axes TAYLOR — muscle, Axes DYER Hela-cell, RNA, Homo SCHERRER hepatocytes, glucose & glycogen, Rodentia JACQUOT PLAS homotypic cell cultures, effect of histo- compatibility antigens from matrix vesicles, Lagomorpha SLAVKIN imaginal disc cells, genetic study, Diptera KURODA , normal & abnormal, Diptera GATEFF immunocompetent cells, Lacer- tilia MUTHUKKARUPPAN immunogenic response, Rodentia DUTTON inductive-responsive system, effect of teratogens, Axes, Rodentia JOHNSON Insecta KRAUSE iris, RNA synthesis activation, Urodela REESE kidney & lung, ATPase, Rodentia WAYMOUTH larval & imaginal cells, Diptera ROSALES adult tissues, Urodela FORET — tissue, Anura HAUSER limb mesenchyme, normal & mutant, behaviour & differentiation, Axes FLINT liver cells, differentiation, biochemistry, endocrinology, Rodentia CROIZAT PIPERNO , effect of hormones, Anura SOLURSH lymphocyte competence, mitogens, Axes, Rodentia VAN ALTEN mammary gland, Homo, Rodentia KATO , differentiation in relation with DNA synthesis & cell division, Rodentia STOCKDALE material transfer from coelomocytes to oocytes, Polychaeta SCHROEDER media, Porifera NIKITIN mesenchyme differentiation, Ascidiacea SALA metamorphosis, Anura NIIZIMA mitosis, Echinodermata KANE — , effect of low temperature, Axes BARASA monolayer, myoblast-fibroblast relationship, Axes McKENZIE morphogenesis in cell cultures, Homo ELSDALE muscle, cartilage & retinal pigment cells, differentiation in vitro, biochemistry, Axes COIEMAN myoblast, normal & dystrophic, nucleolus & RNA, Axes, Homo, Rodentia JANS ROSS 311 TISSUE CULTURE (contd.) myocardial cells, interactions, Aves GORDON myogcnesis, regulation COLE myotube formation, Aves NISHIZU nerve cells, brain & sense organs BREIPOHL — — , processes, biochemistry, Aves BRAY — fibre, effect of cytostatic agents, Aves BARASA — tissue differentiation, Aves VARON nervous microsystems, Aves STEFANELLI — system, normal & abnormal, Diptera GATEFF neural crest, histones & RNA, Anura ANDREW GABIE — induction & early differentiation, Anura DEUCHAR — tube & brain, Aves WENGER neuroblastoma cells in vitro, neurotubules, biochemistry & role in differentiation, Rodentia ROSENBAUM oogenesis, Hymenoptera WENT parotid gland, control of secretory events, Rodentia GORDON pigment cells, effect of thyroxine, Anura GABIE placenta, giant cells, aging, Rodentia DORGAN primordial germ cells, general study, Urodela CAPURON protein, RNA & DNA, synthesis, embryo, Echinoidea INFANTE regenerating tissue, Turbellaria ZILLER regeneration, Oligochaeta MARCEL — blastema, Turbellaria BETCHAKU , Urodela FORET retina, Aves, Rodentia MELLER — , development & regeneration, Mammalia KEEFE — , reconstitution from dissociated cells, Aves FUJISAWA skin, cell death & differentiation, epithelial- mesenchymal interactions, ultrastructure, Anura GOLDSMITH — , — renewal, Lacertilia, Ophidia MADERSON spatial organization & supracellular patterns in embryonic tissues, Aves DeHAAN techniques, myogenesis MESSAGE teratoma cells, Mammalia WEISS testis, Homo HORSTMANN — , descent, Mammalia WENSING tissue cells, dissociated, viability, Aves WHITE — reconstruction, Anura, Aves, Porifera STEINBERG tumours associated with embryonic organs, Homo WOLFF undifferentiated cells, activity, normal & regenerating animals, Turbellaria CHANDEBOIS TONGUE see Mouth TOOTH (TEETH) ameloblast differentiation, Rodentia MOE amelocyte de- & redifferentiation, Rodentia MOE attachment of epithelial cells, Primates, Rodentia TAYLOR autoradiography, Vertebrata LEBLOND bud, postnatal, experimental study, Lago- morpha YARDIN control mechanisms, Rodentia FITZGERALD cusp pattern, Homo, Rodentia LAVELLE dentine, ultrastructure, Teleostei HEROLD dentinogenesis, relation to dermal bone formation, Selachii, Teleostei, Urodela HEROLD development & eruption TONGE differentiation & ultrastructure, Anura SPINELLI — , in vitro, Rodentia KOLLAR effects of environmental factors & anti- biotics, Rodentia FITZGERALD — — undernutrition, part, protein calory deficiency, Artiodactyla TONGE enamel, Elasmobranchi KEMP — , dentine & cementum, specifity control, electron microscopy, bio- & immuno- chemistry, Lagomorpha SLAVKIN — , histochemistry, Rodentia BEYNON epithelial-mesenchymal interactions, Rodentia FOSSE RISNES — , mitosis & differentiation, Rodentia RUCH , role of matrix vesicles containing RNA, Lagomorpha SLAVKIN fetal, blood supply & mineralization, Homo TOBIN — development, Homo BURDI PIHAN STePHAN germ & dental lamina, Marsupialia FOSSE RISNES — , epithelial-mesenchymal interaction, in vitro, Rodentia TAKEUCHI histochemistry & ultrastructure, Urodela ROUX incisor, dentin types, Rodentia FITZGERALD — , maxillary, Rodentia JOSEPHSEN induction & organogenesis, in vivo & in vitro, Urodela CAPURON Insectivora KINDAHL lamina, tissue interactions, Marsupialia, Rodentia MILLER Mammalia FRIANT molars, root & periodontal ligament, Rodentia BEYNON morphogenesis & cytogenesis, Rodentia POURTOIS origin & differentiation, Amphibia CHIBON papillae cells, in vitro, Mammalia KOLLAR periodontium, histology, Primates COHN regeneration, Carnivora POLEZHAEV — , descriptive & experimental study, Urodela REYREL replacement, Holostei, Urodela MILLER Teleostei FOSSE HOLMBAKKEN JONGH tissue culture, Homo, Mammalia NIIZIMA TRACE ELEMENTS TRACER STUDIES see Autoradiography; Radio-isotopes TRACHEAL SYSTEM postembryonic, experimental study, Diptera TRANSPLANTATION see also Immunology, Nucleus Aves MULHERKAR brain & sense organ primordia, interspecific, Aves OPPENHEIM chorioallantoic, epithelial pearls, mode of formation, Aves MARRARO — , pineal organ, Aves MARRARO — , suprarenal gland, differentiation, Aves CHEVALLIER early stages, Rodentia LEVAK SKREB SVAJGER ectopic, liver, Rodentia SELLER egg, fertilized, Rodentia LARSSON MARSK embryonic liver, heterospecific, tubule deve- lopment, Aves, Rodentia DIETERLEN graft, immunology, Nemertea BIERNE — , interspecific, neural crest, Aves LE DOUARIN — , method for better attachment, Aves PASSAPONTI heart, auxiliary, atrophy, Rodentia GOSS hetero-, Rodentia WRBA — & xenoplastic, Anura KATO heterologous, Mammalia FORSBERG homo- & xenograft acceptance, embryonic stages, Chelonia YNTEMA interordinal, limb bud, differentiation & immunology, Aves, Rodentia HANSBOROUGH limb region, embryonic, movement of limbs, Urodela BRANDLE liver, Anura DAIMON — to chorioallantois, Aves MARRARO lympho-myeloid cells, foetus, Rodentia THOMAS mammary gland, regeneration, Rodentia HOSHINO Mollusca CHENG neurons, brain, proliferation, migration, differentiation, Mammalia DAS organ grafts, intraembryonic & intrauterine, Rodentia DEUCHAR ovary into spleen, DNA synthesis, Homo, Rodentia MARKELOVA rejection, effect of asparaginase, embryo & larva, Amphibia GULLUNI SANTORO salivary gland, regeneration, Rodentia HOSHINO Scorpionidea SHULOV skin, enzyme histochemistry, Rodentia MAKINEN RAEKALLIO — , graft rejection, Anura BOVBJERG 312 spleen, chorio-allantoic grafts, host reaction, Aves MUN tissue, Anura KOYAMA — , Anura, Rodentia NIIZIMA — , Scorpionidea SHULOV — , Vrodela DEPARIS xeno- & homograft, tolerance comparison, Vrodela TABAN xenoplastic, Amphibia TRAMPUSCH — , cell types in skin, Aves MAUGER — . hypophysis, species specificity, Amphibia BYTINSKI — , neural plate material, effect on be- haviour, Anura ANDRES TROPHOBLAST see Blastocyst TUMOUR(S) see also Carcinogenetic agents; Teratoma(s) antigens, relation to embryo cell surface antigens, Rodentia EDIDIN ascites, growth promoting effects, Mammalia ARGYRIS culture in association with embryonic organs, Homo WOLFF — on extracts of chick liver, mesonephros & yeast, Homo WOLFF deciduoma formation, effect of I.U.D., Rodentia CHALLONER developmental pathology PAUL differentiation in regenerating appendages, Anura MIZELL — , ultrastructure, Rodentia KARASAKI embryonic carcinoma, Rodentia DAMJANOV SKREB — germ cell, Homo GAILLARD experimental induction, Rodentia WECHSLER hepatoma, growth, circadian rhythm, Rodentia ECHAVE LLANOS NASH __ _ control, Rodentia BADRAN ECHAVE LLANOS , relation to hypophysis, Rodentia BADRAN ECHAVE LLANOS histogenesis in vitro, Homo AUERSPERG induction by subcellular fractions, embryo & larva, Anura TWEEDELL — in fetal lung KAUFFMAN — , transplacental, Rodentia WRBA initiation by N-nitrosomethylurea, Amphibia RUBEN interaction with embryonic cells in the same host, Rodentia SALAUN Leydig cell, effect on female, Rodentia POURREAU , functional capacities, in vitro, Rodentia POURREAU liver, in vitro, Rodentia SIGOT Lucke, virus induced, role of nucleolus, Anura JACOB lymphoid tissue, Anura BALLS lymphosarcoma cells in vitro, effect of heavy metals, Rodentia AMONS malignant, in children, developmental genetics, Homo CASSIDY mammary, proteins, LDH, Rodentia WILLIAMS melanotic, genes, effect on development, Diptera SANG mitotic rate, Rodentia BERTALANFFY neoplasia, etiology, Anura NACE neoplasm, genetically controlled, Diptera GATEFF organ culture, long term growth factors, Homo CROISILLE SMITH WOLFF relation with immunocompetence, Amphibia RUBEN — — teratogenesis, Rodentia KALTER renal carcinoma, differentiating, histo- chemistry & fine structure, Rodentia GIBLEY RNA synthesis in vitro, effect of x-rays, Homo BEAUPAIN teratocarcinoma, protein pattern, Rodentia SERMAN SOLTER teratoma, experimental, Rodentia DAMJANOV SKREB SOLTER testicular cell, effect on genital tract, Rodentia POURREAU — interstitial cell, organ & suspension culture, Rodentia POURREAU transplantation into embryo, Aves LAKSHMI SHERBET transplanted nuclei, Anura McKINNELL uterus, Homo SZAMBORSKI virus, as tool in embryology, Aves EBERT ORR RASH — induced chromosome aberrations, Homo MAKINO — — , erythroid differentiation, Rodentia FURUSAWA — , infectious nucleic acids as differentiating agents, Anura MIZELL TWINS (& other multiple births) experimental, Rodentia FERM longitudinal study, placental morphology & zymograms, bloodtyping, Homo THIERY ULTIMOBRANCHIAL BODY calcitonin in bone development, Chelonia DIMOND morphogenesis & physiology, Aves VENZKE organ culture, Aves THESINGH ULTRASOUND effect on embryo, Urodela POURHADI — and its organs, Aves LUTZ erythropoiesis, Aves DYSON tissue regeneration, Lagomorpha, Rodentia DYSON ULTRAVIOLET IRRADIATION effect on cleavage & morphogenesis, Gastropoda LABORDUS embryo, Diptera FORREST YAJIMA limb development & regeneration, Urodela BUTLER — — re-entry of pole cells, Diptera YAJIMA egg, repair process, Gastropoda LABORDUS microbeam, applied to embryo, Hymenoptera AMY — , cleavage cavity, Gastropoda JURA SH radicals in eggs, Echinoidea IKED A UMBILICAL CORD see also Vascular system collagenogenesis, Homo relation with fetal size, Mamma UYSAL lia sphincter, Lagomorpha NAAKTGEBOREN TAVERNE UNICELLULAR ORGANISMS after-effect of genetic information following denucleation, Desmidiaceae KALLIO amitosis, unequal division of nucleolus, Rhizopoda BAND anucleate cells, RNA synthesis, Algae SCHWEIGER breeding system, Ciliata KATASHIMA cell surface changes, Chlorophyceae, Diatomeae IWASA — to-cell adhesion, Rhizopoda BAND chloroplast, autonomy, Algae SCHWEIGER — development & induction, Eugleno- phyceae SCHIFF & replication, control mechanism, Euglenophyceae LYMAN membrane & protein, Eugleno- phyceae HOLOWINSKY — , effect of light & chemicals, Euglenophyceae CARELL cooperation between subcellular components, Algae SCHWEIGER cortex, removal, Ciliata TARTAR cortical pattern, developmental genetics, Ciliata FRANKEL — variations, genetic & developmental studies, Ciliata NANNEY cytokinesis, studied by microsurgery, Ciliata TARTAR cytomorphogenesis, ultrastructure, Desmidiaceae KIERMAYER developmental cycle, relation to ecology, Myxobacteria DWORKIN — genetics, mating type, Ciliata BUTZEL 313 UNICELLULAR ORGANISMS (contd.) — pattern, Desmidiaceae KIERMAYER differentiation & polyploidy, Opalina KACZANOWSKI — , synchronous, Ciliata CAMERON DNA-polymerase relation with cell cycle, Ciliata WESTERGAARD — replication in synchronized cells, Ciliata ANDERSEN — , transforming, in germinating spores, UV-resistance, Bacteria IRIE encystment, new RNA, Rhizopoda JANTZEN — pattern, Ciliata WAIDYASEKERA fission, effect of cytochalasin, Ciliata JURAND flagella & basal bodies, ameba-flagellate transformation, Protozoa FULTON fusion & fission, Rhizopoda HOLTFRETER gene action in clonal cultures, Ciliata NANNEY growth, sexual & asexual reproduction, physiology & biochemistry, Volvocales JONES — , ultrastructural changes, Desmidiaceae SELMAN WADDINGTON heat shocks, morphogenetic effects, Ciliata TARTAR intercellular material, Chlorophyceae, Diatomeae IWASA life cycle in host under normal & abnormal conditions, Opalina KACZANOWSKI light regulated development, Chloro- phyceae KLEIN macromolecules synthesis in relation to cell cycle, Ciliata CLEFFMANN membrane formation, Rhizopoda HOLTFRETER — mediated control of behaviour, Rhizopoda BELL metabolism, life cycle, Euglenophyceae NIGON — , various phases of life cycle, Eugleno- phyceae NIGON microstome-macrostome transformation, macromolecules, Ciliata DILLARD microtubules in axoneme, Heliozoa IKEDA mitochondria, biochemistry & electron micros- copy, Saccharomyce tales BACHOP morphogenesis, Ciliata FRANKEL — , autoradiography, Ciliata DE TERRA — , effects of actinomycin, Ba & Ca, Ciliata KACZANOWSKA — , experimental, Ciliata DE TERRA — , relation to encystment, Ciliata HASHIMOTO morphogenetic changes due to difference in food, Rhizopoda WAIDYASEKERA motility & cell division, Sarcodina ALLEN — , locomotion, protoplasmic streaming, cytotaxis, Rhizopoda HOLTFRETER mouthparts induction, Ciliata TARTAR multicellular body formation, Chlorophy- ceae, Diatomeae IWASA normal & abnormal development on natural & unnatural hosts, Microsporidia KRAMER nuclear differentiation, RNA synthesis, gene expression, Ciliata BERGER nucleic acids, Euglenophyceae HEIZMANN nucleo-cytoplasmic relationships, Algae HAMMERLING , Ciliata DE TERRA GIBSON , biochemistry, Algae SCHWEIGER — , changes during cell cycle, Rhizopoda BELL oral apparatus, electron microscopy, Ciliata WILLIAMS , morphogenesis, Ciliata WOLFE — differentiation, molecular control mecha- nisms, mitochondrial genome, UV, micro- tubules, electron microscopy, Ciliata BURCHILL — structures, experimental study, Ciliata HANSON organelle, development & role in terato- genesis, Ciliata BUTZEL — formation during fission cycle, Ciliata JURAND photocontrol of development BUTLER pigment regeneration, Ciliata TARTAR population patterns, Ciliata, Eugleno- phyceae SPRATT protein synthesis, regulation, Ciliata WILLIAMS — — , synchronized cultures, Ciliata IKEDA regeneration, electron microscopy, Ciliata NILSSON RNA synthesis in nucleate & anucleate cells, Chlorophyceae DILLARD sexual differentiation & recombination, Chlorophyceae, Diatomeae IWASA — reproduction, mating types & environ- mental conditions, Ciliata BURCHILL size inheritance & body kineties regulation, Ciliata TARTAR spore, DNA changes at germination, Bacteria IRIE — formation & germination, induction, regulation, m-RNA, proteins, intercellular associations, Myxobacteria DWORK1N synthesis of proteins in regenerating cilia & flagella, microtubules, Ciliata, Volvo- cales ROSENBAUM transition amoeboid-flagellate phase, morpho- genesis & biochemistry, Rhizopoda O'DELL PRESTON trophont growth, microtubule synthesis, growth abnormalities, Opalina KACZANOWSKI ultrastructural changes following denucleation, Desmidiaceae KALLIO URETER see Urogenital system URINARY BLADDER see Urogenital system URINARY SYSTEM see Excretory system UROGENITAL SYSTEM see also Excretory system; Genital tract; Reproductive system anomalies, Rodentia ALLISON Anura MICHAEL bladder, morphology & histochemistry, Chelonia GERZELI experimental studies, Rodentia MADJEREK induction, Amphibia, Aves LEPORI malformations, gene-conditioned, Rodentia GUMBRECK pronephric duct, origin, Rodentia PLEEGING relations between genital & excretory system, Anura CAMBAR teratogenesis, Rodentia MONIE ureter, migration of blastema cells, Anura GIPOULOUX UTERINE TUBE see Oviduct UTERUS capacity, Artiodactyla ROBISON cell differentiation, effect of hormones, Rodentia KLEINFELD — dynamics, Rodentia PETERS changes with age, effect on embryo, Lagomorpha, Rodentia MAURER circulation, Primates MARTIN decidua parietalis & capsularis, histo- & cytochemistry, Homo VARMA decidual cells, origin & fate, autoradio- graphy, Rodentia MAIBENCO decidualization, interaction with embryo, endocrinology, Mammalia MARCUS effect of hormones, Rodentia SPAZIANI endometrium, role in feto-maternal relation- ships, Homo BAVEJA VARMA environment for early stages, Lagomorpha, Rodentia ELLIOTT epithelium, ultrastructure, histochemistry, implantation, part, delayed, Carni- vora GULAMHUSEIN histochemistry, Rodentia ROBERTS pregnancy changes in vascular system, Rodentia ORSINI relation to fetal growth, Mamma- lia NAAKTGEBOREN secretion, Primates, Rodentia ECKSTEIN — , effect of steroids, Lagomorpha, Rodentia BENTYN CHOROSZEWSKA — , — on blastocyst metabolism, Rodentia MARCUS stroma of mucosa, developmental pathology, Homo SZAMBORSKI structural development, Homo STEDING tissue reactions to foreign materials, Primates, Rodentia ECKSTEIN 314 VAGINA see Genital tract VASCULAR SYSTEM (& vascularization) see also Circulation; Heart (& great vessels) arteries, culture, Aves GOTZOS brain & head, malformations, Rodentia BUGGE KNUDSEN — & spinal cord, Rodentia HAYASHI KAMEYAMA — , descriptive & experimental study, Aves BURDA — , periventricular, Rodentia BUGGE branchial arches, experimental morphology, Aves PEXIEDER capillaries, heart, Rodentia SCHIEBLER extremities, Homo, Mammalia MAZHUGA functional aspects, Anura KUIJEN histogenesis, Homo, Mammalia MAZHUGA joint capsule, Homo, Mammalia MAZHUGA limb muscles, Homo PORRAS — vascularization, Homo MRAZKOVA malformations, experimental, Aves, Homo, Mammalia KREDIET — , teratogenesis, part, trypan blue, Aves STEPHAN muscular elements, Homo NAKAYAMA part, skin, Homo, Mammalia CARMONA physiology, Aves GIRARD placenta, relation to physiological exchange, Artiodactyla, Perissodactyla STEVEN polysaccharides, localization, Homo LHOTKA radiation effects, Aves STEARNER regeneration, Aves, Homo, Mammalia KREDIET teratogenesis, Rodentia MONIE umbilical circulation, Primates MARTIN vascularization, teeth, Homo TOBIN venous system, Homo KOCOVA vertebrae, Cetacea SINCLAIR VASCULARIZATION see Vascular system VEGETATIVE GRADIENT see Gradients see also Embryology (experimental); Embryology (physiological) VEGETATIVE NERVOUS SYSTEM see Autonomic nervous system infection of blastocyst, Lagomorpha FLAMM infectious nucleic acids as differentiating agents, Anura MIZELL interaction with differentiating cells, Carnivora, Rodentia MARGOLIS embryo, Aves TAHARA mumps & panleukopenia, effect on fetus, Carnivora SCOTT plant, vectors, Homoptera KISIMOTO rubella, effect on fetus, Homo SHEPARD transmission to oocyte, Aves ROTH VISCERA VISCERAL SKELETON see Skull (& visceral skeleton) VITAL STAINING yolk, Cyclostomata GRODZINSKI VITAMIN(S) A, causing malformations, Anura MIGLIORINI — , effect on development & regeneration, Anura, Aves NIAZI — hypervitaminosis, effect on temporo- mandibular joint, Rodentia BERESFORD — , teratogenesis, Rodentia KNUDSEN — , teratogenic effect on auditory organ, Rodentia HAYASHI B, eye reaction, Anura BER C, effect on cartilage in vitro, Aves LEVENSON D, deficiency, Aves ORTMANN deficiency, teratogenetic action, Rodentia GIROUD E, transfer to fetus, Artiodactyla HIDIROGLOU folic acid effect on RNA, kidney, Rodentia KOHL maternal deficiency, teratogenic effect, Rodentia KING VITELLINE MEMBRANE see Egg(s) VITELLOGENESIS see Oogenesis VIVIPARITY see Reproduction WATER humidity, effect on embryo, Orthoptera PENER metabolism, fetus, Artiodactyla BERTON VERTEBRAE (vertebral column) Aves CHRIST chondrogenesis, Aves MINOR Dipnoi, Teleostei FRANCOIS effect of subcommissural organ, Anura HAUSER temperature on number, Lacertilia WERNER growth rate, relative to spinal cord, Homo BARSON Lacertilia WERNER meristic variation, Teleostei GABRIEL vertebral cartilage, ultrastructure, Aves STRUDEL — column, growth, Homo DUVAL , Rodentia THEILER VIRUS(ES) as tools in embryology, Aves EBERT ORR RASH bovine diarrhea, effect on fetus, Artio- dactyla SCOTT causing abnormalities, Aves ROBERTSON effect on cell differentiation, Aves WATANABE development, Mammalia HOLLAND embryo, Vertebrata TONDURY Friend, effect on hematopoiesis, Rodentia McGARRY herpes, transformation of triploid cells, Anura McKINNELL inducing abnormalities in embryo, Homo KOSKIMIES SAXEN — cataract, Aves JAASKELAINEN SAXEN — cerebellar hypoplasia & hydrocephalus, Carnivora, Rodentia MARGOLIS WING(S) bud, epithelio-mesenchymal interaction, Aves CAIRNS — , growth control, Aves CAIRNS cell cycle after diapause, Lepidoptera PENTZ experimental morphogenesis, Aves BARASA imaginal disc, Diptera, Lepidoptera GOTTLIEB interaction with leg, xenoplastic chimaeras, Aves PAUTOU morphogenesis, ectoderm-mesoderm relation, Aves AMPRINO CAMOSSO polymorphism, Homoptera KISIMOTO regulation, Aves AMPRINO scales, x-ray induced somatic mutations, Lepidoptera PENTZ scalloping mutant, somatic recombination & clonal analysis, Diptera SANTAMARIA skeleton, x-ray analysis, Aves GOFF WOLFFIAN DUCT see Urogenital system WOUND HEALING collagenase, characteristics & function, Mammalia GRILLO cutaneous wounds, histo- en cytochemistry, Rodentia SCHMIDT ear, Lagomorpha GOSS electron microscopy, Anura BAKER enzymes, biochemistry, Rodentia MAKINEN RAEKALLIO hair growth stimulation, Mammalia ARGYRIS Lacertilia, Ophidia MADERSON liver, enzymes, Rodentia KARKOLA mechanism, Rodentia MIZUNO 315 WOUND HEALING (contd.) modification, Lagomorpha, Rodentia mucopolysaccharides & collagen, Mammalia origin of cells, Mammalia role of Mn, Mammalia scar, hypertrophic, ultrastructure, Homo tissue resorption, Lagomorpha vascular response, biochemistry, Rodentia wing, Chiroptera TAB AN WATTS WATTS WATTS KISCHER GRILLO MAKINEN RAEKALLIO GOSS XANTHOPHORES see Chromatophore(s) X-IRRADIATION see also Irradiation; Radiomimetic agents blastomeres, intravital microscopy, Uiodela PETERS chromosome aberrations, Rodentia ;ONARE early stages, electron microscopy, bio- chemistry, Urodela effect on adult morphogenesis, Polychaeta — — blastema, Turbellaria ALEXANDRE SOLBANI OKUNO SUGINO brain, Rodentia ALTMAN central nervous system, Rodentia BERRY cutaneous nerve pattern, Axes MAUGER — — determination of moulting, Lepidoptera COULON development, aging & longevity, Diptera ROCKSTEIN developmental capacity of egg, Rodentia BEAUMONT — — egg & embryo, Diptera ULRICH embryo, Aves, Urodela REYSS , Lacertilia PIEAU VASSE female germ cells, Primates, Rodentia BAKER hormones in pupa, Lepidoptera WOLBERT imaginal disc, Diptera VIJVERBERG — — induction, gastrula, Urodela REYSS innervation, skin, Aves SAXOD intestine, biochemistry, Aves GASC — — lifespan & leukemia, Rodentia JENSH liver proteins, Rodentia MALPOIX RNA polymerase, Rodentia MALPOIX — — neuro- & glioblast, Mammalia LIERSE offspring, chromosomal aberrations, Urodela JAYLET — — regeneration, Asteroidea HUET , Polychaeta BAUTZ of aneurogenic limb, Urodela ROSE — — skin, Aves REYSS spinal pterylae, Aves MAUGER — — tissue differentiation, Urodela PETERS gametes through pupae, influence of deve- lopmental stage, chromosome configuration & specific genes, Diptera WURGLER germ cell destruction, Anura DI GRANDE low, acute doses, effect on early develop- ment, Teleostei WELANDER malformations, effect of serotonin, Rodentia SREBRO of uterus, effect on implantation & deve- lopment, Rodentia GIBBONS sublethal doses, effect on various stages, Teleostei WELANDER YOLK see also Egg; Nutrition; Oogenesis albumen, developmental factors for retinal pigment formation, Aves HARRISON bio- & histochemistry, Aves CARINCI formation, Teleostei DONATO — , effect of intracellular microorganisms, Blattariae BROOKS — , electron microscopy, histochemistry, Aves BELLAIRS ENGLAND granules, degenerating, relation with protein breakdown, Gastropoda WAL hemolymph proteins, Orthoptera . morphogenetic function, Teleostei, Urodela morphology, Gastropoda origin, Gastropoda osmotic properties, Cyclostomata platelets, Anura — , ultrastructure, Chondrostei, Crossop- tervgii, Elasmobranchi GRODZINSKI — , — , Teleostei BOULEKBACHE proteins, biochemistry, Orthoptera, Phasmida *£99K _ — , Teleostei YAMAGAMI — , induction by estrogen in males, Anura TATA — , metamorphosis, Crustacea, Insecta LAUFER — , synthesis, transport & composition, Crustacea, Vertebrata WALLACE synthesis & deposition, Teleostei BEAMS , radio-isotope study, Insecta ENGELS system, changes of protein pattern, Coleoptera Kt>S^ transfer to embryo, Aves LOCCI ultrastructure, Aves BAKER — , Holostei KILARSKI vital staining, Cyclostomata GRODZINSKI YOLK SAC see Embryonic membranes IGNATJEVA FIORONI HADFIELD GRODZINSKI KARASAKI 316 Communications from the HUBRECHT LABORATORY I The scientific staff As from January 1st, 1971 Dr. W. J. Ouweneel was appointed head of the Research Unit of Developmental Genetics. II Annual Progress Reports The report for 1 970 is available on request. Earlier reports are also available still. III Seventh International Research Group in Develop- mental Biology The seventh international Research Group will meet at the Hubrecht Labora- tory from January till July 1972. It will have nine members from the following countries: Argentine, Canada, Greece, India (2), Indonesia, Italy, Poland, and U.S.A. Part of the travel expenses of some of the members are covered by a grant from UNESCO. IV International facilities These facilities comprise the Central Embryological Collection and the Central Embryological Library, with its extensive reprint collection and its documentation and information services. Details pertinent to these facilities may be found in the information booklet distributed on a large scale in 1966. This booklet is available on request. A special leaflet describing the Central Embry- ological Library and its facilities is also available on request. 317 Communications of the INTERNATIONAL SOCIETY OF DEVELOPMENTAL BIOLOGISTS (Developmental Biology Section of the I.U.B.S.) The I.S.D.B. intimates with deep regret the death of its meritorious Secretary- Treasurer Prof. E. Zwilling (Waltham, Mass.), and of its members T. Hum- phrey, M. Ichikawa, B. M. Patten, J. A. M. Runnstrom, and E. Witschi. Upon the sudden and untimely death of Prof. Zwilling his office has been temporarily taken over by Dr. R. L. DeHaan (Baltimore, Md.). Dr. DeHaan will remain in office until the next General Assembly in 1973. In 1970 the I.S.D.B. sponsored an event which was inadvertently overlooked in the Communications of that year (G.E.I.S., Suppl. 13, 1970). This was the "International Working Party on Crystallin Immunochemistry", held in Edin- burgh from June 23 — July 6, 1970, and organized by Dr. R. Clayton. In the past year the I.S.D.B. sponsored two Symposia. The first was on "Genetics of the Spermatozoon", held in Edinburgh, August 16 — 21, and or- ganized by Prof. S. Gluecksohn Waelsch and Dr. R. A. Beatty. The second was the "Lens Symposion" held in Utrecht, Netherlands on August 23 — 26. Prof. W. J. van Doorenmaalen was chairman of the organizing committee. The Symposion had 70 members from 11 countries; there were 12 local observers. The I.S.D.B. at present has 506 members; 30 new members were admitted by the Board in 1971. A complete membership list appears below. Proposals and spontaneous applications for membership are welcome at any time. The procedure and requirements for application are as follows: a) Candidates for membership can be proposed or supported by two members at any time. The Board screens the applications once or twice a year. b) The requirement for membership is that the candidate should have made a substantial contribution to the field of developmental biology. The Board decides whether a particular applicant meets this standard. c) Proposals must be accompanied by a curriculum vitae and a list of public- ations of the candidate, and should be sent either to Dr. R. L. DeHaan, Dept. of Embryology, Carnegie Inst, of Washington, 1 1 5 W. University Parkway, Bal- timore, Md. 21210, U.S.A. or to Prof. P. D. Nieuwkoop, Hubrecht Laboratory, Uppsalalaan 1, Universiteitscentrum "De Uithof", Utrecht, Netherlands. Utrecht, January 1972 The Adjunct Secretary-Treasurer, P. D. Nieuwkoop 318 Membership List of the I.S.D.B. { alphabetical order, with years of election; * emeritus members) This list was drawn up on December 1st, 1971. For full addresses see "General Embryological Information Service", vol. 14, 1971 and supplement to vol. 14, 1972. Miss U. Abbott, Washington, D.C., '64 M. Abercrombie, Cambridge, Eng., '56 H. B. Adelmann*. Ithaca, N.Y., '48 I. P. S. Agrell, Lund, '60 K. Aketa, Nagoya, 70 J. F. Albright, Terre Haute, Ind., '69 R. D. Allen, Albany, N.Y., '57 E. C. Amoroso, Cambridge, Eng., '60 R. M. Amprino, Bari, '60 E. M. Anderson, Amherst, Mass., '69 G. Andres, Mainz, '57 Th. S. Argyris, Syracuse, N.Y., '70 J. Ariens Kappers, Amsterdam, '60 H. L. Arora, '64 }. M. Ash worth, Leicester, Eng., '71 B. L. Astaurov, Moscow, '56 R. Auerbach, Madison, Wis., '70 Mrs. G. Augusti-Tocco, Naples, '71 M. Auroux, Paris, 70 C. R. Austin, Cambridge, Eng., '57 C. Baglioni, Cambridge, Mass., '69 J. T. Bagnara, Tucson, Ariz., '67 B. I. Balinsky, Jo'burg, '48 W. W. Ballard, Hanover, N.H., 70 Miss E. Baltus, Rhode-St-Genese, 70 E Baltzer*, Bern, '48 H. J. Barr, Madison, Wis., 70 G. Barsacchi, Pisa, 72 A. Bart, Villeneuve D'Ascq, 70 L. G. Barth, Woods Hole, Mass., '48 P. G Barrels, Tucson, Ariz., 70 Mrs. L. J. Barth, Woods Hole, Mass., '69 R. A. Beatty, Edinburgh, '56 F. Beck, London, Eng., '66 H. J. Becker, Miinchen, '67 J. C. Beetschen, Toulouse, '67 E. Bell, Cambridge, Mass., '69 Mrs. M. A. Bellairs, London, '60 M. Benazzi, Pisa, '56 J. A. A. Benoit, Nogent sur Marne, '60 H. D. Berendes, Nijmegen, '69 W. E. Berg, Berkeley, Calif., '57 H. Bergquist*, Goteborg, '67 N. J. Berrill, Swarthmore, Pa., 71 S. Bieber, Teaneck, N.J., 70 Miss J. H. Bijtel*. Amsterdam, '56 W. J. Birge, Lexington, Ky., 70 C. W. Birky, Jr., Columbus, Ohio, 71 M. Birnstiel, Edinburgh, '69 D. W. Bishop, Toledo, Ohio, 70 Mrs. S. M. Bishop (Calame), Davis, Calif., "67 R. E. Black, Williamsburg, Va., '69 A. W. Blackler, Ithaca, N.Y., '69 D. P. Bloch. Austin, Tex., '69 R. F. Blount*, Galveston, Tex., '60 C. W. Bodemer, Seatde, Wash., 70 D. Bodenstein, Charlottesville, Va., '56 E. J. Boell, New Haven, Conn., '57 B. Boilly, Villeneuve DAscq, 70 }. T. Bonner, Princeton, N.J., '60 E. Borghese, Napoli, '56 B. G. Boving, Northville, Mich., *57 J. L. A. Brachet, Rhode-St-Genese, '48 S. K. Brahma, Utrecht, '66 A. C. Braun, New York, N.Y., 70 P. L. Brien*, Bruxelles, '48 R. W. Briggs, Bloomington, Ind., '56 H. V. Brondsted*, Copenhagen, '48 D. D. Brown, Baltimore, Md., '69 P. J. Bryant, Irvine, Calif., 72 C. Burdon-Jones, Townsville, Qld., '60 R. K. Burns, Bridgewater, Va., 52 D. N. Butcher, Cambridge, Eng., 70 E. G. Butler*, Princeton, N.J., '56 J. M. Butros, Beirut, '67 R. D. Cahn, Seatde, Wash., '69 J. M. Cairns, Springville, NY., '69 R. Cambar, Talence, '57 E. C. Cantino, East Lansing, Mich., 70 E. W. Caspari, Rochester, N.Y., '60 C. Y. Chang, Peking, '57 Mrs. H. Charniaux (Cotton), Paris, '64 H. B. Chase, Providence, R.I., '60 P. S. Chen, Zurich, '60 D. Chen, Israel, 72 G. Chieffi, Napoli, '64 Chuang Hsiao Hui, Shanghai, '48 J. M. J. Clavert, Strasbourg, '57 Mrs. R. M. Clayton (Freedman), Edinburgh, '60 A. C. Clement, Atlanta, Ga., '57 U. Clever, Lafayette, Ind., '69 S. Cohen, Nashville, Tenn., '64 J. R. Coleman, Providence, R.I., 70 A. Collenot, Paris, '69 J. R. Collier, Brooklyn, N.Y., '69 G Colombo, Ferrara, '60 A. L. Colwin, New York, '56 Mrs. L. H. Colwin, New York, '60 C. E. Corliss, Memphis, Tenn., 70 G. W. Corner*, Philadelphia, Pa., '52 M. A. Corner, Amsterdam, 72 D. P. Costello, Chapel Hill, N.C., '48 A. J. Coulombre, Bethesda, Md., '69 M. Crippa, Arco Felice, Naples, 70 Y. Croisille, Nogent-sur-Marne, '66 P. S. Crowell, Bloomington, Ind., '60 A. S. G. Curtis, Glasgow, '69 A. M. Dalcq*. Bruxelles, '33 H. C. Dalton, University Park, Pa., 70 V. D'Amelio, Palermo, '64 F. Dameron, Paris, 70 Mrs. J. C. Dan, Tokyo, '57 319 K. Dan, Tokyo, '57 J. C. Daniel, Jr., Knoxville, Tenn., /U J. Dankmeijer, Leiden, '60 I. B. Dawid, Baltimore, Md., '69 Sir G. R. De Beer*, Bex, Switz., '38 Mrs. M. Decroly, Rhode-St-Genese, 71 R. L. De Haan, Baltimore, Md., '69 H. A. Denis, Liege, '69 Mrs. T. A. Dettlaff, Moscow, '56 Ch. Devillers, Paris, '57 M. De Vincentiis, Naples, '64 Miss M A. Di Berardino, Philadelphia, Pa., '66 Mrs. D. F. Dieterlen (Lievre), Paris, '68 A. Dollander, Nancy, '60 W. J. v. Doorenmaalen, Utrecht, 60 A. Dorfman, Chicago, 72 D. B. Drachman, Baltimore, Md., 70 N. I. Dragomirov, Moscow, '48 M. Durchon, Villeneuve D'Ascq, '69 F. Duspiva, Heidelberg, '69 R. M. Eakin, Berkeley, Calif., '48 J. D. Ebert, Baltimore, Md., '56 M. V. Edds, Jr., Providence, R.I., '60 A. Egelhaaf, Koln, 70 G. Eguchi, Nagoya, '69 H. Emanuelsson, Lund, 72 H. Englander, Koln, '60 W. Etkin, New York, 70 H. E. Evans, Ithaca, N.Y., 72 Mrs. H. Eyal (Giladi), Jerusalem, 64 J. Faber, Utrecht, '64 J. F. Fallon, Madison, Wis., 70 G. Fankhauser*. Princeton, N.J., '48 E. Faure-Fremiet*, Paris, '33 J. C. Fautrez, Gent, '57 M. Feldman, Rehovoth, '60 Dame H. B. Fell*, Cambridge, Eng., 36 W. R. Ferris, Tucson, Ariz., 70 Mrs. A. A. Ficq, Rhode-St-Genese, '60 G. Filogamo, Torino, '60 C. V. Finnegan, Vancouver, B.C., 70 M. Fischberg, Geneve, '57 R. A. Flickinger, Buffalo, N.Y., '60 T. Thomson Flynn*, '38 Mrs. F. Martindale Foote, Carbondale, G. Forti, Bari, 70 IU-. 64 L. Franklin, Covington, La., 70 M. Friedlander, Jerusalem, 70 T. Fujii, Tokyo, '60 C. M. Fulton, Waltham, Mass., 70 M. Furuya, Tokyo, 70 P. J. Gaillard, Leiden, '60 J. G. Gall, New Haven, Conn., '69 J. Gallera, Geneve, '57 L. Gallien, Paris, '56 Mrs. P. v. Gansen (Rasmont), Rhode-St-Genese, 70 W. L. M. Geilenkirchen, Utrecht, 72 P. W. Gilbert, Ithaca, N.Y., '60 A. Giroud*. Paris, '48 G. Giudice, Palermo, '69 R. W. Glade, Burlington, Vt., 70 T. W. Glenister, London, Eng., '60 Amiela Globerson, Rehovoth, 70 P. F. Goetinck, Storrs, Conn., 70 Susan Goldhor, Ankara, 70 E. Goldwasser, Chicago, 111. ,71 R. J. Goss, Providence, R.I., '69 C. T. Grabowski, Coral Gables, Fla., 70 Ph. Grant, Eugene, Ore., '64 P. B. Green, Philadelphia, Pa., 70 J. H. Gregg, Gainesville, Fla., '69 J. R. Gregg, Durham, N.C., '57 T. A. I. Grille Ibadan, '66 C. Grobstein, La Jolla, Calif., '56 Z. Grodzihski*, Krakow, '60 J. Gross, Boston, Mass., 70 P. R. Gross, Cambridge, Mass., '69 H. Griineberg, London, Eng., '56 J. B. Gurdon, Oxford, Eng., '69 T. Gustafson, Stockholm, '56 E. Hadorn, Zurich, '48 A. Haget, Talence, '60 T. Hama, Nagoya, '60 V. Hamburger*, St. Louis, Mo., '48 H. L. Hamilton, Charlottesville, Va., 56 W. J. Hamilton, Northwood, Eng., '48 J. Hammerling, Wilhelmshaven, '60 W. S. Hammond, Syracuse, NY., '60 Mrs. J. A. Hanocq (Quertier), Rhode-St-Genese, 69 J. W. S. Harris, London, Eng., '68 M. Hasek, Praha, '57 Miss E. D. Hay, Boston, Mass., 64 Y. Hayashi, Tokyo, '60 W. G. Heim, Colorado Springs, Colo., 6b W. A. Hemmings, Bangor, Wales, '69 Miss S. Hennen, Milwaukee, Wis., 70 H. Herrmann, Storrs, Conn., '60 O. Hess, Diisseldorf, '69 S. R. Hilfer, Philadelphia, Pa., 71 Miss G. W. Hinsch, Coral Gables, Fla., 70 Y. Hiramoto, Misaki, '60 L. Hoadley*. Cambridge, Mass., '48 H. Holter*, Copenhagen, '57 J. K. F. Holtfreter*. Rochester, N.Y., 36 S. Horstadius*, Uppsala, '48 C. Horvath, Budapest, 72 Y. Hotta, La Jolla, Calif., 70 Ch. Houillon, Paris, '67 J. M. T. Hultin, Stockholm, '56 R. R. Humphrey*, Bloomington, Ind., '49 T. D. Humphreys II, La Jolla, Calif., 70 J. Ishida, Urawa, '60 M. Ishikawa, Toba, 70 A. G. Jacobson, Austin, Tex., 70 D. C.-O. Jacobson, Uppsala, '69 L. F. Jaffe, Lafayette, Ind., 70 J. Jansen*, Oslo, '60 Miss A. G. Johnen, Koln, '64 A. D. Jost, Paris, '56 A. J. B. Kallen, Lund, '60 P. P. Kallio, Turku, 70 H. Kanatani, Tokyo, 71 R. E. Kane, Honolulu, 72 Y. Kanoh, Akkeshi, '60^ S. Karasaki, Montreal, '69 I. Kawakami, Fukuoka, '57 K. Keck, Tucson, Ariz., 70 L. H. Kedes, Cambridge, Mass., 71 N. E. Kemp, Ann Arbor, Mich., '57 A. Keynan, Jerusalem, 70 Mrs. M. A. Sengel Kieny, Grenoble, 64 R. C. King, Evanston, 111., 70 T. J. King, Washington, D.C., '60 V. Kiortsis, Athens, '69 A. O. Klein, Waltham, Mass., 70 N. W. Klein, Storrs, Conn., 70 Mrs. U. Kocher (Becker), Heiligenberg, 66 320 W. Kocher, Wurzburg, '66 L. D. Koehler, Mt. Pleasant, Mich., 70 E. J. Kollar, Chicago, 111., 70 J. J. Kollros, Iowa City, Iowa, '56 I. R. Koningsberg, Charlottesville, Va., '69 K. Kratochwil, Wien, '69 G. Krause, Wurzburg, '56 A. Krishnakumaran, Milwaukee, Wis., 70 R. G. Kulka, Jerusalem, 71 Miss T. K. Kuusi, Helsinki, '56 J. C. Lacroix, Paris, '69 R. A. Lallier, Villefrance sur Mer, '60 W. Landauer*, London, Eng., '57 A. Lang, East Lansing, Mich., 70 J. Langman, Charlottesville, Va., '56 J. W. Lash, Philadelphia, Pa., '69 H. Laufer, Storrs, Conn., '69 Mrs. L. Lazard (Hauben), Paris, 68 S. Leghissa, Bologna, '60 H. E. Lehman, Chapel Hill, N.C., '57 J. Leighton, Pittsburgh, Pa., 70 Th. Lender, Orsay, '60 H. M. Lenhoff, Irvine, Calif., 70 V. Leone, Milano, '57 Miss R. Levi-Montalcini, St. Louis, Mo., '56 M. Locke, London, Ont., 70 G. V. Lopashov, Moscow, '48 S. Lovtrup, Umea, '60 H. Lutz, Aubiere, '57 D. Luzzati, France, 72 D. J. McCallion, Hamilton, Ont., '64 Miss R. Maggio, Palermo, '64 G. Mancino, Pisa, 70 K. Maramorosch, Yonkers, N.Y., 70 Mrs. L. Marin (Lewin), Paris, '68 C. L. Markert, New Haven, Conn., '57 P. A. Marks, New York, 70 E. Marre, Milano, '69 P. N. Martinovitch*. Beograd, '60 J. P. Mascarenhas, Albany, N.Y., 70 Y. Masui, Toronto, Ont., '69 S. Metafora, Napoli, 71 C. B. Metz, Coral Gables, Fla., '56 J. -J. Meusy, Paris, 70 Y. Mikami, Tsu, '60 J. Milaire, Bruxelles, '64 R. D. Milkman, Iowa City, Iowa, 70 G Millonig, Arco Felice, Napoli, 70 A. Minganti, Genova, '56 Miss B. Mintz, Philadelphia, Pa., '57 B. Moav, Tel-Aviv, 72 A. Monroy, Napoli, '56 Miss F. Moog, St. Louis, Mo., '56 S. Mookerjee, Calcutta, '60 Mrs. B. C. Moore, Riverside, Calif., '69 J. A. Moore, Riverside, Calif., '57 A. A. Moscona, Chicago, 111., '57 H. W. Mossman*. Madison, Wis., '56 I. Motomura*, Sendai, '57 Mrs. L. Mulherkar, Poona, '69 J. G Mulnard, Bruxelles, '57 Miss H. M. Murphy, London, Eng., 71 Mrs. M. R. Murray, New York, N.Y., '60 V. Mutolo, Palermo, 70 G. W. Nace, Ann Arbor, Mich., '60 O. Nakamura, Osaka, '57 E. Nakano, Nagoya, '57 J. Needham*, Cambridge, Eng., '48 L. Nelson, Toledo, Ohio, 70 M. Nemer, Philadelphia, Pa., '69 D. A. T. New, Cambridge, Eng., '69 D. R. Newth, Glasgow, '57 G. Nicolet, Geneve, '69 P. D. Nieuwkoop, Utrecht, '57 H. Nishimura, Kyoto, '69 M. C. Niu, Philadelphia, Pa., '56 H. Oka, Tokyo, '60 Y. K. Okada*. Tokyo, '52 Miss K. Okazaki, Tokyo, '60 O. M. Olivo, Bologna, '57 Miss J. M. Oppenheimer, Bryn Mawr, Pa., '56 R. O'Rahilly, Baltimore, Md., '64 Mrs. M. C. Ward Orsini, Madison, Wis., '64 Miss E. Ortiz, Puerto Rico, 70 F. Orts Llorca, Madrid, '56 Mrs. J. H. Overton, Chicago, 111., '60 Helen A. Padykula, Wellesley, Mass., 70 S. Pai, Shanghai, '48 J. Papaconstantinou, Oak Ridge, Tenn., '69 P. Pasquini, Roma, '57 J. J. Pasteels, Bruxelles, '38 J. Paul, Glasgow, '69 C. Pelling, Tubingen, '69 S. Penman, Cambridge, Mass., '69 H. P. Perlmann, Stockholm, '60 G. W. Philpott, St. Louis, Mo., 70 J. Piatigorsky, Bethesda, Md., 70 J. Piatt, Philadelphia, Pa., '60 L. J. Pierro, Storrs, Conn., 70 L. Piko, Sepulveda, Calif., '64 L. V. Polezhaev, Moscow, '48 K. R. Porter, Boulder, Col., '64 D. F. Poulson, New Haven, Conn., '60 Mrs. N. M. Pourreau (Schneider), Paris, '68 Miss D. Price, Chicago, 111., '60 S. Ranzi, Milano, '48 M. H. J. Rapola, Helsinki, '69 L. Raunich, Ferrara, '56 Chr. P. Raven, Utrecht, '41 Mrs. M. E. Rawles (Spurbeck), Baltimore, Md., "56 A. Raynaud, Sannois, '60 G. Reverberi*, Palermo, '48 R. W. Reyer, Morgantown, W.Va., '56 R. A. Rifkind, New York, 70 Miss L. Rinaldi, Parma, 70 G. G. Robertson, Memphis, Tenn., '66 K. T. Rogers, San Francisco, Calif., '64 E. A. Rollins, Albany, N.Y., 70 S. M. Rose, Belle Chasse, La., '56 J. Rostand*, Ville d'Avray, '60 L. N. Ruben, Portland, Ore., '68 J. V. Ruch, Strasbourg, '69 F. H. Ruddle, New Haven, Conn., 70 Miss D. Rudnick, New Haven, Conn., '56 M. N. Runner, Boulder, Colo., '60 L. Sachs, Rehovoth, 70 T. Sachs, Jerusalem, 70 H. Sakai, Tokyo, '69 M. Sala, Padova, '60 Miss J. Salaiin, Nogent-sur-Marne, 71 Miss B. Salzgeber, Nogent-sur-Marne, '64 K. Sander, Freiburg, '66 T. Sato, Nagoya, '57 H. W. Sauer, Heidelberg, 70 J. W. Saunders, Albany, N.Y., '56 L. O. Saxen, Helsinki, '60 E. Scarano, Napoli, '69 Mrs. D. Scheib (Pfleger), Nogent-sur-Marne, '64 321 General Developmental Biology (see also 39, 67, 74) Textbooks 1 CONTROL OF GROWTH AND METAMORPHOSIS, Part II of Animal Hormones, a comparative survey. 1970. By P. M. JENKIN Pergamon Press, Oxford. International Series of Monographs in Pure and Applied Biology, Div. Zoology, vol. 47. 404 pp., 81 figs., 26 tabs., author, taxonomic, and subject indexes. ISBN 0 08 015648 7. £ 5.—, $13.50 Contents: 1. Introduction; 2. Sources of hormones related to morphogenesis; 3. Growth and mitosis; 4. Moulting and metamorphosis; 5. Control of morphogenetic hormones Part I of this book appeared in 1962 and bore the subtitle "Kinetic and metabolic hormones". The present volume treats of the "morphogenetic" hormones of both invertebrates and verte- brates in so far as they are concerned in the control of growth, moulting, and metamorphosis. The hormones related to reproduction and regeneration are only touched upon occasionally in this volume. Man and the domestic animals are usually only referred to in passing. Because of the comprehensive and rigorously systematic treatment of the subject matter the book is of great value to developmental biologists and advanced students, both as a stimulating text in its own right and as a source of important references. Of particular significance is the use of clearly defined hormone nomenclature throughout the book, and the emphasis on the functional integration of endocrine organs with each other and with the nervous system in chapter 5. Chapter 1 devotes much attention to problems of definition. In chapter 2 the endocrine glands are grouped according to their embryonic origin from either ectoderm, endoderm, or mesoderm. Chapter 3 first treats effects on general growth, and then effects on mitosis specifically. At the end of chapter 4 the general features of morphogenetic hormones are discussed, such as species specificity and differential tissue responses; this is followed by a discussion of the possible mechanisms of hormone action. The book is well produced and is illustrated with carefully selected drawings executed in uniform style, and with a few photographs. Each chapter has its own bibliography. For most subjects the most recent literature cited dates from 1966. The author stresses that the reference lists are not exhaustive. The book contains a useful glossary. 2 AN INTRODUCTION TO EMBRYOLOGY. 3rd edition. 1970. By B. I. BALINSKY W. B. Saunders, Philadelphia. 743 pp., 457 figs., 21 tabs., subject index. $ 10.00, £ 4 5 s. Od. This is the third edition of a successful students' textbook first published in 1960. The first edition was reviewed in Gen. Embryol. Inf. Service, suppl. to vol. 8, 1960, p. 26. Much of what was said then still applies, but although the author's approach was novel in 1960, one now fears that the book is being superseded by other similar books written from a more modern point of view. Moreover, the book which was rather long for an introduction even then, has now grown to a size which raises doubts as to its usefulness for the time-pressed biology student of today. No doubt much of the older factual and theoretical subject matter could have been weeded out, and some of the space used to update some sections. For instance, the chapter on regeneration, however appropriate in a book of this kind, is far from up-to-date More examples could be cited. Much new material was incorporated into this edition, but not in a very consistent manner, and the evidence cited is often rather old. The new material relates particularly to the storage and transmission of genetic information, to genetic factors in embryogenesis, to nucleo- cytoplasmic interactions, and to the control of differentiation and growth. The book has been produced with the utmost care and the illustrations are excellent. The bibliography is long but shows surprising gaps. It would also have benefited from the separate listing of books and important reviews. 324 3 DEVELOPMENTAL BIOLOGY. 1971. By N. J. BERRILL McGraw-Hill, New York. 543 pp., 443 figs., combined author and subject indexes. SBN 07 005020 1. $ 11.50 Contents: Part I. The assembly of cell and organism, 1. Synthesis and assembly, 2. The structural basis of form and action, 3. The cell cycle, 4. Cortical patterns and inheritance, 5. Multicellularity, 6. Polarity, form, and differentiation, 7. The development of multicellular organisms, 8. Morphogenetic fields and the plant meristem; Part. II. The nature of animal development, 9. Gametes and gametogenesis, 10. Fertilization, 11. Cleavage, polarity, deter- mination, and gradients, 12. Cleavage and nuclear activity, 13. The egg cortex and develop- ment, 14. Developmental mechanics or formative movements, 15. Embryonic induction; Part III. Organization, reconstitution, and differentiation, 16. Cell assembly and interaction, 17. The limb as a developing system, 18. Morphogenesis of the vertebrate eye, 19. Metamor- phosis, hormones, and genes, 20. Genes, prepatterns, and determination, 21. Cytodifferentia- tion, 22. Malignancy, differentiation, and development In the opinion of the present reviewer this book, despite its conventional title, is one of the most thoughtful, inspiring, and original textbooks of developmental biology to have appeared in recent years. It is intended primarily for advanced undergraduate or beginning graduate students, and the student who has read and digested it will have attained as firm a grasp of modern developmental biology as he could wish for. The field is defined very broadly and includes subcellular and cellular aspects, genetic aspects, plant morphogenesis, asexual repro- duction, regeneration, and metamorphosis. The examples are chosen from a variety of taxono- mic groups much wider than is usually represented in students' textbooks. The dominant theme is that of the self-assembly and directed assembly of organized substance. The main impression remaining after browsing through the book is that of an author who is first and foremost a knowledgeable general biologist with a very sound insight and a good feeling for the proper balance of fact and theory. As the table of contents will show the book's organization is quite original. It begins with a discussion of molecular and subcellular self-assembly which is highly unusual in books of this kind. The notions of polarity, gradient, and morphogenetic field are introduced at an early stage and on a broad biological basis; it is unexpected but refreshing to see the latter concept discussed initially in connection with the plant meristem. The chapter on the egg cortex contains an undogmatic discussion of "mosaic" and "regulative" egg types. In the chapters on the limb and the eye, embryonic development and regeneration are treated as one continuous whole. In ch. 20 much attention is devoted to the insect imaginal disc system. The last chapter, via a discussion of teratomas and cell transformation, takes the reader back full circle to the beginning of the book. These are only a few highlights of this remarkable book. Each chapter is concluded by a series of "concepts" or condensed conclusions stated in general terms, and by a well-chosen list of readings. The illustrations are numerous and very good indeed. They supplement rather than support the text; to this end they are provided with lengthy captions. This aspect of the book is the only one that is not wholly satisfactory: often the captions are still too brief to be completely intelligible without support from the text. The book is produced with great care and the layout, helped by the square page format, is esthetically very pleasing. The index is very detailed, but it is a pity that the authors mentioned in the figure captions are not included. 4 ELEMENTS D'EMBRYOLOGIE. I. Embryologie generate comparee et humaine. 1970. By A. DOLLANDER and R. FENART Editions Medicales Flammarion, Paris. 366 pp., 182 figs., 5 tabs., subject index. Fr. 52 (paper) This is the first volume of a two-volume textbook of embryology for medical students. Vol. I is by Dollander, while vol. II will be by Fenart and will be devoted to special human embryology. In the present volume one chapter (that on the hereditary material) was written entirely by A. Duprez, while another one (that on general concepts relating to congenital anomalies) was largely edited by this author. The book has a laudatory preface by Prof. A. M. Dalcq. The book is remarkable in several respects. It is in two parts, "General comparative em- bryology" and "General human embryology". The most striking feature of part one is perhaps 325 the criticisms that have been levelled at his own ideas as formulated in his previous works in English (particularly by Apter and Wolpert, who have questioned whether information theory is at all relevant to development). The last two chapters are mainly philosophical in character and discuss the various con- cepts of finality, starting with Aristotle and Kant. Much stress is placed on the complementarity of causal, historical, and final descriptions or explanations of natural phenomena. In the reviewer's opinion this is an important book that would merit translation into English. Invertebrate Development (general) (see also 54, 55, 64, 70, 84) Treatises 10 INVERTEBRATE EMBRYOLOGY, translated from the Japanese by J. C. Dan. 1968. Edited by M. KUM£ and K. DAN Nolit Publishing House, Belgrade. 621 pp., 385 figs., 16 tabs., author, taxonomic, and subject indexes. $ 6.00 Authors: Dan, Hirai, Inaba, Ishikawa, Iwata, Kato, Kume, Kuwana, Oda, Katsuhiro Okada, Kiichiro Okada, Sekiguchi, Shiino, Tadano, Takami, Uchida, Wada, Yamada Complete systematic accounts of invertebrate embryology are very rare, and the most recent one is more than thirty years old (Korschelt and Heider, 1936). Therefore this book will be very welcome. It is the translation of a collaborative treatise written by 18 Japanese embryologists and first published in Japanese in 1957. Understandably, no attempt has been made to update the book, the translation being a major achievement in itself. No one could be better qualified to undertake this work than Dr. Jean Clark Dan, the wife of the second editor. The translation was made on behalf of the U.S. National Library of Medicine and the U.S. National Science Foundation. It is impossible to review the book in detail here. This will be the task of specialists in the field. We confine ourselves to a few general remarks. The contents are arranged in strict taxonomic order, with the exception of Chapter 1 (by the editors, 70 pp.), which is a general and comparative review of gametogenesis, fertilization, cleavage, germ layer formation, egg organization, and the role of chromosomes in development. This chapter also contains a section on methods for the collection of eggs and sperm in the laboratory. The mode of subdivision of the systematic chapters (11 in all) is rather variable, but all chapters treat not only the early stages but also the larval stages and metamorphosis, if any, in the group concerned. Throughout the book some of the main experimental-morphological and physiological data are discussed along with the descriptive data. The emphasis in this treatment is on "classical", relatively old data, and of course no data more recent than about 1955 are included. Still it is of great value, particularly to beginning students, that one thus gets a general impression of the sort of problems and experimental approaches peculiar to experimental and physiolo- gical embryology. However, the book is hardly suitable as a work of reference for this part of the subjects. All chapters have extensive bibliographies containing titles in all languages. Naturally many papers cited are by Japanese workers, but this is only an advantage, since one gets at least an idea of this work, which was often published in Japanese and therefore is not easily accessible. The work is profusely illustrated, mainly with good line drawings. The quality of paper and print is reasonable, but the cover, though sturdy enough, is extremely ugly. This is com- pensated, however, by the very low price. 328 11 EXPERIMENTAL EMBRYOLOGY OF MARINE AND FRESH-WATER INVERTEBRATES. 1971. Edited by G. REVERBERI North-Holland, Amsterdam, American Elsevier, New York. 610 pp., 301 figs., 26 tabs., 13 pis., subject and author index. ISBN 0 7204 4080 7, 0 444 10065 2. $ 28.—, 233 s., H.fl. 100.— Contributors: Arnold, Brachet, Clement, Czihak, Green, Hess, Horstadius, Mergner, Re- verberi, Skaer This is a collaborative treatise of a kind that has never been tried before. Never has so much information on the experimental and physiological embryology of invertebrates been brought together in one book. Embryologists everywhere will be thankful to the editor and the authors for supplying this long-needed supplement to the excellent descriptive texts available. The only thing one regrets is the decision to restrict the book to the artificial category of aquatic invertebrates. It is difficult to see why it was necessary to exclude, e.g., the insects and the spiders, on which equally important work has been done. The only reason one can think of is that of space. The original intention was to restrict each chapter to one species, but the majority of contributors found this impossible — very fortunately, as it turns out. As it is, of the 14 chapters only four are devoted to a single genus (Mytilus, llyanassa, Dentalium, Amphioxus). The other chapters deal with the following groups: Cnidaria, Ctenophora, Planariidae, Annelida, Nemertini, fresh-water Gastropoda, Cephalopoda, Crustacea, Echinodermata, and Ascidiae. Wherever possible, information has been included on the techniques for obtaining animals and eggs, fertilization, decapsulation, etc., and of course normal development is usually given ample attention before turning to experimental data. The book is well printed and profusely illustrated with line drawings, photomicrographs, and electron micrographs. The latter are not always of the highest quality, but it is difficult to judge whether this is due to reproduction or to the quality of the originals. Each chapter has its own bibliography. Monographs 12 OVARIAN DEVELOPMENT IN DROSOPHILA MELANOGASTER. 1970. By R. C. KING Academic Press, New York. 237 pp., 75 figs., 4 tabs., author and subject indexes. SBN 12 408150 9. $ 16.50, 154 s. Contents: I. The preadult development of the female reproductive system, II. The structure and functioning of the reproductive system of the adult, III. Cell division, migration, and differentiation within the germarium, IV. The genetic control of cystocyte divisions, V. The behavior of the oocyte chromosomes, VI. Cellular interactions during the development of the egg chamber The title of this research monograph is definitely misleading, because the word "develop- ment" is taken to include the adult ovary and the final stages of oogenesis. In fact, most of the subject matter deals with oogenesis and its genetic and epigenetic control. The author has been active in this field for nearly two decades and has greatly contributed to it. The book bears the mark of this, in that it perhaps leans too heavily on the author's own work and that of this associates. Nevertheless, many workers on oogenesis, not only of Drosophila, will be thankful to him for bringing together a wealth of data in logical order, while many geneti- cists will welcome the book as a work of reference on such subjects as meiosis, crossing-over, and chromosome structure and behaviour. The book is sufficiently characterized by the table of contents given above. Many of the numerous illustrations are superb line drawings taken from publications of the author and his associates; they are based on light and electron micrographs. There is also a cytological and genetic map of the Drosophila salivary gland chromosomes incorporating some of the latest data from Lindsley and Grell (1968). The book is well produced and has a 20-page bibliography. 329 pages longer. New chapters were added on gene action in the egg, on cell migration, sorting out and aggregation, and on the migration of primordial germ cells. These show the same excellence of style as the original parts (which were occasionally enlarged). The new chapters have illustrations of the same good quality as the others, which have all been retained. A brief list of readings has been added. 19 PATTERNS AND PRINCIPLES OF ANIMAL DEVELOPMENT. 1970. By J. W. SAUNDERS Jr. Collier-Macmillan, London. 296 pp., 150 figs., 2 tabs., subject index. 90 s. Contents: 1) Patterns, problems, and principles, 2) Origin of the fertilized egg, 3) Sorting the materials of the egg: formation of germ layers, 4) Molding the body form, 5) Principles of development: the conceptual framework for developmental analysis, 6) Larval forms and metamorphosis, 7) Regeneration, 8) Genetic control of development, Appendix A: Mitosis and meiosis, Appendix B: Genetic control of protein synthesis This book was written mainly for the use of lower-level students who have some elementary knowledge of general biology and chemistry. The text is restricted to the vertebrates and is relatively simple, covering only a minimum of fact and theory. Much of the subject matter has been adapted from the author's "Animal Morphogenesis" (1968), which was reviewed in Gen. Embryol. Inf. Service 13, 1969, p. 316. The favourable opinion expressed at that time also applies to the present book. Its didactic qualities are outstanding. Chapters 6 and 7 are entirely new, while the other chapters have been adapted from the previous book. Also new are the two appendixes, and a good glossary of embryological terms and taxonomic names mentioned in the text. Each chapter has a summary emphasizing the principal points covered. The summaries are followed by study questions aimed at stimulating the student's own thought, and by lists of related general readings and works cited in the text. At the end of the book there is a list of books and similar reading matter. The numerous illustrations, both photographs and line drawings, are of outstanding quality and unity of style. The figures have sometimes extensive explanatory captions. Type and lay-out of the book are modern and very pleasing, but rather wasteful due to the type area covering only 2/3 of a page. This is reflected in the price. Monographs 20 ON THE CYTOBIOLOGY OF THE HEN'S EGG (in Bulgarian). 1969. By J. S. JORDANOV Publ. House of the Bulgarian Academy of Sciences, Sofia. 343 pp., 39 figs., 7 tabs., English summary (13 pp.) Contents: I. Evolution (= development) of the hen's oocyte (the yolk) until egg hatching; II. Morphological organization of the ripe hen's oocyte (the yolk); III. Biochemical orga- nization of the ripe hen's oocyte (the yolk); IV. Physiology of the yolk. On the significance of the morphological and biochemical organization of the oocyte (the yolk) for the early embryonic development Illustrated with photographs, coloured drawings and black-and-white drawings; bibliography of nearly 800 titles (64 in Russian or Bulgarian). Symposium reports 21 A DISCUSSION ON DETERMINATION OF SEX. 1970. Edited by G. W. HARRIS and R. G. EDWARDS The Royal Society, London. Philosophical Transactions of the Royal Society, Ser.B., vol. 259, no. 828. 206 pp., 104 figs., 35 tabs. $ 18.20, £ 7 (paper) Contributors: Beatty, Chan, Dubois, Edwards, Ford, Fredga, Goy, Harris, Jost, Lyon, Mitt- woch, Neumann, Peters, Polani, Price, Race, Short, Tarkowski This issue of the Philosophical Transactions, which is available separately from the Royal Society of London, contains the proceedings of a Discussion held in London in May 1969. The 332 organizers brought together a truly representative group of specialists in the field of sex determination. The 18 papers read and the discussions following them are recorded. Most papers are a happy mixture of review and research report, prepared with great care and subdivided into surveyable sections. They range in lenght from two to 22 very large pages, and are ideally suited to update one's knowledge of the major aspects of the field, such as the genetics and pheno- genetics, the embryology, and the endocrinology of sex determination and differentiation. Some attention is also devoted to neural, psychobiological, clinical, and reproductive aspects. The treatment is largely restricted to the vertebrates. Most papers have extensive bibliographies, and many are beautifully illustrated. All photo- micrographs are printed on glossy paper. There are no indexes. The price of the issue seems excessive. 22 THE POST-NATAL DEVELOPMENT OF PHENOTYPE. 1970. Edited by S. KAZDA and H. DENEN- BERG Academia, Prague and Butterworths, London. 420 pp., 224 figs., 54 tabs., subject index. ISBN 0 407 96250 6. £ 8.— This volume contains the proceedings of a Symposium held in Liblice in September 1967. It had 50 participants, half of whom were Czechs, while twelve came from the U.S.A. and the remainder from various other countries. Most of the participants were physiologists, endocri- nologists, and pharmacologists, but paediatricians and psychologists were also present. The Symposium therefore was a truly interdisciplinary one. Its chairman was M. A. McCance, Cambridge. The 32 research papers deal with an extremely broad range of experimental approaches using mainly laboratory and domestic mammals; two papers deal with the human subject. Most of the research reported was on the effects on postnatal growth, development, and behaviour of a variety of factors acting from just before to some time after birth. Among the factors investigated were weaning, handling and some other forms of stimulation and stress, hormone injection, nutrition, and some drugs. Their action on the organism as a whole as well as on various organ systems was studied. Most papers are followed by group discussions. A key concept playing a role in studies of this kind is that of critical periods. This concept is briefly discussed in a foreword by J. P. Scott. The book is concluded by a lengthy general dis- cussion with contributions from M. A. McCance, J. P. Scott, C. A. Barraclough, and many others. The book is well produced and adequately illustrated. It has no indexes to authors or contributors. Development of Mammals and Man (general) (see also 33, 43-46, 49-53, 56-58, Textbooks 76-78, 87, 88, 98, 99) 23 MANUAL DE TRABAJOS PRACTICOS DE EMBRIOLOGIA. 2 ed. revisada y ampliada. 1970. By E. KLEISS Univ. de Los Andes, Fac. de Med., Merida. 418 pp., 334 figs, (paper) This book is the revised and considerably enlarged 2nd edition of a work first published in 1961. Its contents consist almost entirely of figures, and it was conceived for use in classes of human embryology in conjunction with lectures and text-books. Because it has no text it cannot be used on its own. The main topics illustrated are the development and anatomy of the male and female genital organs, spermatogenesis and oogenesis, endocrine relations in genital function, the mammary gland, fertilization, implantation and placentation, the develop- ment of external body form, normal pregnancy and birth, multiple pregnancy and fetal reduplications. The development of the organ systems is not included, but gross malformations are duly considered. The figures consist of line drawings and photomicrographs. Most of the former are composite, and many were made by the author himself, particularly the numerous more or less schema- tical drawings illustrating the multiple types of interrelations in reproduction and gross development. The line drawings are on the whole of satisfactory quality. The photographs are unfortunately printed on ordinary paper and are generally unsatisfactory. 333 The following species are considered successively: swine, horse, cow, and sheep (epitheliocho- rial), dog, cat, vampire bat (endotheliochorial), and man, mouse, rabbit, and guinea pig (haemochorial). The atlas consists of 30, mostly composite, full-page plates comprising a total of 104 figures. There are three types of figures: low-power light micrographs, high-power light micrographs (osmium-fixed 1 j.i sections stained with toluidine blue), and electron micro- graphs. Thus a good transition from lower to higher levels of magnification is achieved. After a four-page general introduction there are brief introductions for each of the main three placental types, while the plates have extensive explanatory legends. The figures are on the whole of good quality, although the electron micrographs are sometimes rather grey in tone. The book as a whole is produced with great care. It is con- cluded by a five-page bibliography and a good subject index. 30 THE HUMAN PLACENTA. 1970. By J. D. BOYD and W. J. HAMILTON W. Heffer, Cambridge. 380 pp., 447 figs., 12 tabs., subject index. ISBN 0 85270 040 7. 360 s. Contents: I. Historical survey; II. Terminology; III. Age of embryos and foetuses; IV. Early human development; V. The implantation of the blastocyst and the development of the trophoblast up to the somite stage; VI. Villous stages (thirteen to twenty-one days); VII. Somite stages (twenty- thirty days) (Streeter's horizons-X to XIV); VIII. General description of specimens; IX. Structure and terminology of placental lobes and chorionic villi; X. Growth of placenta; XL Trophoblast; XII. Speciahzations of the trophoblast; XIII. Basal plate and placental septa; XIV. Foetal blood vessels of the placenta; XV. Stroma of villi; XVI. Vessels of villi; XVII. The utero-placental circulatory system; XVIII. Intervillous space; XIX. Placental fibrin and fibrinoid; XX. A medley of themes; XXI. The placenta in multiple pregnancy; XXII. Envoi Two of the three authors of the famous Hamilton, Boyd, and Mossman textbook "Human Embryology" have now given us a book that promises to become an equally well-known classic. It is sad that Prof. Boyd did not live to see the book in print. The book is a truly monumental achievement, but full justice can only be done to it by a reviewer who is himself an expert in the field. Therefore a few remarks must suffice here. The book is largely descriptive in character, but functional aspects are considered throughout, and more particularly in chapter XX, which considers the chemical composition of the pla- centa and its relation to transport of substances, endocrinology, and immunology. For further details of the plan of the book the reader is referred to the table of contents above. The book is printed in large format on heavy quality glossy paper, and is sturdily bound. An outstanding feature are its numerous illustrations: drawings, gross photographs, photo- micrographs, and electron micrographs; many of these are in colour, and all of them are of superb quabty. The bibliography is largely restricted to the 20th century and covers 25 closely-printed pages. Collections of papers 31 I. FORTSCHRITTE AUF DEM GEBIETE DER PLAZENTA-PHYSIOLOGIE II. NEUE FORSCHUNGSERGEBNISSE UBER DEN MUTTERLICHEN PLAZENTAKREISLAUF. 1970. By H. LEMTIS et al. Karger, Basel. Fortschritte der Geburtshilfe und Gynakologie, Vol. 41. 123 pp., 50 figs., 1 tab. $ 7.80, 65 s., DM 32.50 (paper) Contributors: Banniza von Bazan, Kollath, Lemtis, Pohle, Puppe, Wilhelmi This sUm volume contains four contributions of two different natures. The first is a review by H. Lemtis of recent literature on placental physiology covering a period of about five years (1964-68). The three other contributions are research reports: one on directional streaming of maternal blood in the human placenta (Lemtis, Banniza, Wilhelmi, Kollath, Pohle, Puppe); one on the variable blood supply of the maternal intervillous space system in the human placenta (Lemtis, Puppe, Wilhelmi); and one on the velocity of the blood stream in the invervillous space system (Lemtis, Puppe, Wilhelmi). The results were obtained largely 336 by means of rontgen cinematography. All contributions have extensive bibliographies, that of the first one consisting of more than 250 titles. The book is well printed and beautifully illustrated; many of the photographs are rontgen cinematographs. Teratogenesis (see also 22, 26, 28, 52, 57, 58, 60, 77) Monographs 32 RECOGNIZABLE PATTERNS OF HUMAN MALFORMATION, genetic, embryologic, and clinical aspects. 1970. By D. W. SMITH W. B. Saunders, Philadelphia. Major Problems in Clinical Pediatrics, vol. 7. 383 pp., 618 figs., subject index. $ 16.00, £ 6. 16 s. 0 d. This book is of almost exclusive interest to pediatricians. The reason why it is reviewed here is that, apart from the main subject matter, it contains a separate chapter devoted to normal morphogenesis. The first two chapters of the book are entitled "Single syndromic malformations resulting in secondary defects" (17 pp.) and "Dysmorphic syndromes of multiple primary defects" (277 pp.). The first chapter contains diagrams of the hypothetical embryonic origins of the malform- ations in question. Chapter two contains a virtually complete listing of all syndromes known up till 1968, and a set of summary tables which are meant to assist the clinician in differential diagnosis. Chapter three is entitled "Morphogenesis" (28 pp.) and begins with a summary view of overall human embryonic and fetal development. Then follow sections illustrating aspects of the morphogenesis of the eye and lens, the kidney, the limbs, the thyroid, and the pituitary. The chapter is concluded by a table listing the embryonic processes affected and the latest possible time of causation of some malformations that represent incomplete stages in morpho- genesis. The book is concluded by chapters on genetics and genetic counseling, and on minor malformations. The book is well printed and is profusely illustrated, mainly with photographs. In chapter three these are mostly micrographs of reasonable but not excellent quality. On the cover- papers there appears a useful chart of the chronology of normal human development. References are interspersed throughout the text. Dissertations 33 THE NORMAL PALATE AND INDUCED CLEFT PALATE IN RAT EMBRYOS, an in vivo, in vitro and autoradiographic study on embryological development. 1969. By R. NANDA M.D. thesis, Nijmegen. 120 pp., 65 figs., 13 tabs. Normal development of secondary palate; teratogenic effects of vitamin A and Dexameth- asone explants from normal and drug-treated mothers; explants treated with drugs in vitro; autoradiography using 35S and 3H. Symposium reports 34 CONGENITAL MALFORMATIONS. 1970. Edited by F. C. FRASER and V. A. McKUSICK, Co- Editor R. ROBINSON Excerpta Medica, Amsterdam. International Congress Series No. 204, 466 pp., 141 figs., 97 tabs., author and subject indexes. ISBN 90 219 0135 8. $ 27.50, £ 11.10.0 Contributors: Abercrombie, Aladjem, Apgar, Barnes, Berendes, Brent, Burns, Carter, Church, Clarke, Dawid, Ferguson-Smith, Gellis, German, Hauge, Hay, Hess, Hillman, Jacobs, Kirkman, Langman, Lenz, Lilienfeld, Lind, Littlefield, McKusick, Markert, Maroteaux, Menkes, Miller, Morton, Motulsky, Nishimura, Papaconstantinou, Polani, Robbins, Schimke, Sever, Siniscalco, Smith, Stern, Taylor, Ursprung, Warkany, Weiss, Whittingham, Wilson, Witschi, Yerushalmy This magnificently produced book contains the proceedings of the Third International Conference on Congenital Malformations held in the Hague, Netherlands, 7-13 September, 337 1969. The conference was attended by a vast number of participants from all over the world, and appears to have been very well organized. The participants were not only teratologists and clinicians, but also developmental biologists, which made for a very broad scope of approach. The discussions held at the Conference are not recorded. After the opening session the conference started with a Symposium entitled "Developmental Biology 1969". This was in two parts: 1) The biochemistry of differentiation (papers by Church, Hess, Papaconstantinou, Stern and Schimke), and 2) Control mechanisms in develop- ment (papers by Siniscalco, David, Hay, L. Weiss and Abercrombie). Next came five sessions, respectively devoted to the uterine milieu and early embryo (3 papers), early embryo — exogenous factors (3), birth defects in man (10), prospective studies — a progress report (3), and management — present and future (6). Next followed a number of concurrent discussion and free paper sessions, which are repre- sented in the book by brief summaries written by the session chairmen. Among these the following may be mentioned: Molecular genetics (Ursprung); Mechanisms of teratogenesis (Wilson); and The embryology of malformations (Langman). The Conference was closed by a summing-up session in which six participants spoke. One of them was C. L. Markert, who talked about the contributions of developmental biology to the understanding of congenital malformations. The book is beautifully printed and very well illustrated. It has a list of authors, a complete list of participants, and subject and author indexes. The latter only gives the authors of invited papers; it it a pity that the authors of free papers were not included. It is not clear why a book with a large prospective market should be so expensive. 35 METHODS FOR TERATOLOGICAL STUDIES IN EXPERIMENTAL ANIMALS AND MAN. 1969. Edited by H. NISHIMURA and J. R. MILLER Igaku Shoin, Tokyo; Pitman Medical, London. 328 pp., 110 figs., 62 tabs., subject index. SBN 272 75994 5. 210 s. Contributors of lectures: Asling, Brent, Dempsey, Fraser, Froehlich, Hayashi, Makino, J. R. Miller, R. W. Miller, Murakami, Nomura, Sever, Stevenson, Takano, Uno, Warkany, Wilson This book contains the proceedings of the Second International Workshop in Teratology held in Kyoto in April, 1968. Apart from the contributors listed above it was attended by a number of observers from all over the world, who took part in the discussions. The nature of the subject matter in the book is threefold, viz. 17 lectures, 6 "demonstrations", and 11 "exhibitions". The lectures deal with a variety of subjects and material (man, other primates, and laboratory mammals), Several are comparative in scope, placing human data next to those on animals. At least nine of them are of direct interest to experimental terato- logists. All are in English and about half of them are followed by brief discussions. Most "demonstrations" cover about five pages and are devoted to various methodological, technical, and diagnostic aspects of teratology. The longest one (18 pp.) is an interesting comparison of normal and abnormal gross development in man and laboratory mammals by H. Nishimura and H. Yamamura. The "exhibitions" are brief outlines of exhibits shown during the workshop; several of these extend material presented in the lectures. Apart from the bibliographies of the lectures there is a selected classified list of books and review articles on embryology and teratology. The book has a good subject index but no author index or list of participants. It is well printed and well illustrated. No attempt has been made to correct the English of the non-Anglo-American speakers. The price of the book seems excessive, perhaps due to the use of heavy-quality glossy paper. 36 RADIATION BIOLOGY OF THE FETAL AND JUVENILE MAMMAL. 1969. Edited by M. R. SIKOV and D. D. MAHLUM U.S. Atomic Energy Commission, Oak Ridge, Tenn. AEC Symposium Series vol. 17. 1040 pp., 391 figs., 184 tabs., subject index. $ 3.00 (paper) This large volume contains the proceedings of a Symposium held in Richland, Wash, in May 1969. It was attended by about 200 scientists from the U.S.A. and eleven other countries. 338 Attention was focussed on late prenatal and early postnatal mammalian development. The preimplantation period and the period of organogenesis were largely excluded, and studies on non-mammalian systems were included only insofar as they yielded information considered to be of fundamental importance. The 78 papers read at the Symposium are grouped in seven sessions as follows: 1) Cross- placental transfer of radionuclides (13 papers); 2) Radionuclide metabolism by the neonate (6); 3) Radiation effects — fetal (13); 4) Radiation effects — perinatal (21); 5) Irradiation of perinatal human populations (6); 6) Radiation effects — CNS (11); 7) Mechanisms of differential radiosensitivity (8). Particularly sessions 1, 3, 6, and 7 contain many papers that are of interest to developmental biologists. Most papers are followed by brief discussions. Several sessions are concluded by chairman's remarks. There is a lengthy Symposium prologue by T. R. Noonan and an epilogue by M. R. Sikov. The book is well printed and adequately illustrated. The list of participants contains only those members not presenting papers. The absence of an author index is badly felt. The paper cover is insufficient for a book of this size; publication in two volumes would have been better. The price of the book is surprisingly low. It is available as CONF-690501 from Clearinghouse for Federal Scientific and Technical Information, National Bureau of Standards, U.S. Depart- ment of Commerce, Springfield, Virginia 22151, U.S.A. Pathology, Cancer (see also 22, 26, 28, 36, 52) Treatises 37 FOETAL AND NEONATAL PATHOLOGY. Third edition. 1970. By J. E. MORISON Butterworths, London. 655 pp., 152 figs., 18 tabs., subject index. ISBN 0 407 17601 2. £ 11.— The second edition of this book appeared in 1963 and was reviewed in General Embryological Information Service, Supplement 10, 1964. The book is not intended as a compilation but as an approach to perinatal disease which integrates basic biological thought with clinical practice. The present edition is about 100 pages longer than the second and many parts have been rewritten. The subdivision into chapters has remained unaltered. The book is now so well known that it may suffice to list the major additions. These concern the following topics: chromosomes in foetal malformation and abortion; developmental immunology and immunology of the placenta; infarct-like placental lesions; the assessment and significance of intra-uterine growth retardation; respiration and resuscitation, and finally rubella infection. The number of illustrations, particularly of original photographs, has been extended. The chapter bibliographies have been revised and updated; many of the older titles have been replaced by newer and more accessible ones. Finally, the subject index has been considerably expanded. Regeneration, Repair, and Renewal (see also 8, 62, 63) Treatises 38 CELLULAR AND MOLECULAR RENEWAL IN THE MAMMALIAN BODY. 1971. Edited by I. L. CAMERON and J. D. THRASHER Academic Press, New York. Cell Biology: A series of Monographs. 432 pp., 63 figs., 31 tabs., author and subject indexes. ISBN 0 12 156940 3. $ 21.—, £ 9.80 Contributors: Adrian, Bernard, Buetow, Cameron, Lehmiller, Leppi, Sabatini-Smith, Slavkin, Thrasher Although much of the subject matter of this collaborative treatise is peripheral to developmental biology, several of the chapters devote attention to problems of morphogenesis and cellular differentiation in connection with the main subject. We will restrict ourselves mainly to mentioning these chapters. A brief chapter by D. J. Lehmiller outlines the techniques available for studying cellular and molecular renewal. The chapter by I. L. Cameron on cell proliferation and renewal in the mammalian body is of interest mainly because of its classification of cell populations based on proliferative behaviour, and its section on the control of proliferation. Two chapters by 339 J. D. Thrasher, one on RNA synthesis and one on protein synthesis, are noteworthy because of the discussion of differentiating systems such as the erythroid system and the lens. The second of these chapters moreover has a brief section on the control of cell division and differentiation. Finally, a chapter by H. C. Slavkin deals with the dynamics of the interactions between extracellular and cell-surface proteins, and particularly with the role of such interactions in the control of morphogenesis and differentiation in a variety of organs. The other chapters deal with DNA, lipids, carbohydrates, and calcification. The book is well produced and illustrated, and the subject index is very detailed. Monographs 39 REGENERATION: key to understanding normal and abnormal growth and development. 1970. By S. M. ROSE Appleton-Century-Crofts, Meredith Corporation, New York. 276 pp., 45 figs., combined author, taxonomic, and subject index. $ 8.80 Contents: I. Genetic theory of cellular differentiation; II. Spatial tissue relationships in the control of lens regeneration in the eyes of salamanders; III Polarized control of regener- ation in the amphibian limb; IV. The transport of messages controlling growth and differen- tiation in plants; V. Protozoa — polarized control of differentiation within the cortex of single cells; VI. Regeneration in worms — neural control of polarized gradients of differenti- ation; VII. Regeneration in coelenterates; VIII. The origin and operation of polarized control in embryos; IX. Tumor formation — a case of never-completed regeneration This book is written in the form of a series of essays. The connecting thread is the author's theory of polarized inhibitory control as a mechanism for pattern formation. This was first formulated about 20 years ago; although, as a generalization, it has recently been criticized from various quarters (cf. Wolpert, J. Theoret. Biol. 25, 1969), it has been fruitful in more limited areas; and it certainly was a novel and interesting idea to bring together in one book discussions of regeneration in unicellular and multicellular animals, plant morphogenesis, embryogenesis, and tumour formation against a common theoretical background. The present reviewer has two major objections against the book, however. One is that the evidence is often selected so as to fit the favoured hypothesis, leaving other evidence unmen- tioned. The other objection mainly concerns the first chapter, in which evidence from the molecular biology of prokaryotes is naively extrapolated to higher organisms, totally disregarding the complexities of gene regulation in the latter. The specific inhibitors found in some developing higher organisms are simply equated with the gene repressors of bacteria. For these and other reasons the book is definitely not suited for students who still have insufficient background in this general area. Some very important recent and older evidence is not included. To mention but a few examples: the treatment of blastemal autonomy and of the role of the epidermis in limb regeneration is incomplete; the treatment of disto-proximal regional organization in the embryonic limb is superficial — a more complete and objective analysis would show that there is also proximo-distal control in the limb. The dual hypothesis of neural induction (Nieuw- koop, Toivonen), and the evidence for it, goes unmentioned. An area that is completely lacking is the regeneration of insect limbs and the development of insect segmental epidermis — it would be very difficult to fit the insect data into the theory of polarized inhibitory control. Also, one would have wished for a more explicit consideration of the relationships between polarity, gradients, and cellular differentiation, and for a more formal treatment of the author's own hypothesis, which is still couched in rather imprecise terms. Nevertheless, many parts of the book make interesting reading, provided the reader uses his critical faculties. The author is at his best when describing older work that seems almost for- gotten, yet provides a great deal of interesting information. This reviewer found the discussion of bio-electrical phenomena in relation to morphological patterns particularly interesting. The book is beautifully produced and very well illustrated. The index is very detailed. 340 Dissertations 40 CELTRANSFORMATIE BIJ REGENERATE, een experimenteel onderzoek bij axolotl-larven (Cell transformation during regeneration; an experimental investigation on axolotl larvae), 1971. By A. E. HARREBOMEE M.D. thesis, Amsterdam. 2 vols. English summary (3 pp.) vol. I text. 72 pp., 6 schemes vol. II 11 plates Transplantation of limb cartilage, muscle, or dermis to the flank, covered by limb wound epidermis; dedifferentiation, blastema formation, and development of incomplete limbs; his- tological evidence of cellular metaplasia. Symposium reports 41 REPAIR AND REGENERATION, the scientific basis for surgical practice. 1969. Edited by J. E. DUNPHY and W. VAN WINKLE, Jr. McGraw-Hill, New York. 378 pp., 169 figs., 26 tabs., 4 pis., combined index to subjects and contributors. $ 29.50 This book contains the papers presented at a Symposium held in San Francisco in February 1968. There were 26 participants from the U.S.A. and Great Britain, belonging to a wide variety of disciplines. The emphasis was on the applicability of results to clinical medicine and surgery. Nevertheless, many of the new data reported will be of interest to experimental biologists working on wound healing and repair, particularly in mammals. The 24 papers are arranged in six sections as follows: I Inflammation and immunity (3 papers); II Skin repair (5); III Connective tissue repair (5); IV Wound remodelling (2); V Biological factors in wound healing (3); VI Practical and clinical aspects of repair (6). The discussions held at the Symposium are not recorded. Contributions worth special mention are a paper by Bullough on epithelial repair, and one on epithelio-mesenchymal relations by Grobstein (section II); a paper on collagen biosynthesis by Rosenbloom and Prockop, and one on mucopolysaccharide synthesis by Peter (section III); a paper on enzyme induction and growth control by Argyris, one on nutritional and environ- mental aspects of wound healing by Hunt and Zederfeldt, and a long paper by Urist on inductive substrates in new bone formation (section V). The book is well printed and well illustrated. It has no author index. 42 REGENERATION OF STRIATED MUSCLE, AND MYOGENESIS. 1970. Edited by A. MAURO, S. A. SHAFIQ and A. T. MILHORAT Excerpta Medica, Amsterdam. International Congress Series, no. 218. 309 pp., 229 figs., 12 tabs., subject index. ISBN 90 219 0142 0. $ 20.—, £ 8.35, H.fl. 72.— This book embodies the proceedings of an international conference convened by the Muscu- lar Dystrophy Associations of America, and held in New York in March 1969. The conference was attended by 33 scientists, one third of whom came from outside the U.S.A. Most partici- pants were anatomists, biologists, and pathologists. Most of the 22 contributions are not formal papers but spontaneous presentations interspersed with questions from the audience and other discussion matter. Frequently these discussions are quite extensive and have their own illustrative material and literature references. Some of the papers are so distended by discussions that they become very difficult to read. Moreover, they lack summaries, which could partly make up for this. The studies reported relate to muscle regeneration and myogenesis (both normal and abnormal, both in vivo and in vitro) in a variety of amphibians and mammals (including man). The techniques used are restricted almost entirely to light and electron microscopy, sometimes combined with isotopic labelling. A considerable amount of discussion centres around the satellite cell concept. J. H. Venable has provided a brief but critical summary of the conference which shows, not surprisingly, that it raised more problems than it solved. The book is well printed and illustrated with numerous good photographs and electron 341 micrographs, so essential to the understanding of a difficult subject like this. It is rather inconvenient that all literature references have been brought together in one bibliography at the end of the book. The subject index is good, but an author index, or at least an index to the contributions to discussions is badly missed. Organogenesis and Histogenesis (see also 12, 21, 33, 38, 74) Monographs 43 THE HISTOCHEMICAL AND ULTRASTRUCTURAL BASIS OF THE CELLULAR FUNCTION OF THE HUMAN FOETAL ADENOHYPOPHYSIS. 1970. By H. ANDERSEN, F. A. von BULOW and K. M0LLGARD G. Fischer, Stuttgart. Progress in Histochemistry and Cytochemistry vol. 1, nr. 3. 32 pp., 13 figs., subject index. Fetuses of 23-196 mm CRL; developmental aspects limited; no classification of cell types; emphasis on pentose shunt, and on production and extrusion of granules. 44 AN ATLAS OF THE ULTRASTRUCTURE OF HUMAN SKIN, development, differentiation, and post-natal features. 1971. By A. S. BREATHNACH Churchill, London, 406 pp., 305 figs., subject index. ISBN 0 7000 1455 1. £ 15.— This atlas illustrates the fine-structural features of human skin from a developmental point of view. About half the number of figures illustrate features of fetal skin, and conditions in the fetus serve as a basis for the illustration of more complex post-natal arrangements. A knowledge of the general anatomy of skin at the light-microscopic level is presupposed. Most of the more than 300 figures are full- or half-page electron micrographs. A large number of low- and medium-power micrographs are included instead of high-power photo- micrographs. It is questionable whether the latter would not have better served the purpose of bridging the gap between light and electron microscopy. The atlas has no text apart from the figure legends, but these are extensive and, as far as possible, are arranged so as to form a continuous story. They contain numerous cross- references. On the whole the quality of the electron micrographs and their reproduction is excellent. Some of the highest magnifications seem to be more blurred than is necessary with optimal techniques. The book is produced with great care. Each of the 16 sections is concluded by a brief list of selected references, mainly review articles. 45 ENTWICKLUNG UND CHEMODIFFERENZIERUNG DES THALAMUS DER RATTE. 1970. By E. EITSCHBERGER Springer, Berlin. Ergebnisse der Anatomie und Entwicklungsgeschichte, Bd. 42, H. 6. 73 pp., 35 figs. Morphogenesis, histogenesis, and histochemistry of thalamic system from 15-day embryo till 45 days post partum (10 enzymes); histochemistry in adult. 46 POSTNATAL DEVELOPMENT OF SPINAL ANTERIOR HORN NEURONES IN NORMAL AND UNDERNOURISHED RATS, a quantitative cytochemical study. 1970. By M. HALTIA Acta Physiologica Scandinavica, suppl. 352, Stockholm. 70 pp., 25 figs., 10 tabs. Isolation of individual neurones from fixed spinal cord of normal, undernourished, and rehabilitated rats; determination of dry mass per cell after lipid extraction, and of RNA content per cell; changes during postnatal development. 342 47 DEVELOPMENTAL NEUROBIOLOGY. 1970. By M. JACOBSON Holt, Rinehart and Winston, New York. Developmental Biology Series. 479 pp., 93 figs., 12 tabs., subject index. SBN 03 077990 1. £ 7.70 Contents: 1. Histogenesis and morphogenesis of the nervous system; 2. Transformations during early development of the nervous system; 3. Differentiation, growth, and maturation of neurons; 4. Effects of nutrition, hormones, and metabolic factors on the development of the nervous system; 5. Cellular interactions during neurogenesis; 6. Development of peripheral neural connections with muscles and sensory receptors; 7. Development of cen- tral connections and formation of neuronal circuits This book is a worthy successor to Detwiler's Neuroembryology (1936). It is much broader in scope than Hughes' Aspects of neural ontogeny (1968) reviewed in Gen. Embryol. Inf. Serv., Suppl. 12, 1968. According to the preface most of the book is "... an attempt at a selective assembly and arrangement of the great mass of data in the literature dealing with development of the nervous system...". The author, who with his collaborators has contributed greatly to our understanding of the establishment of neuronal connections, shows much skill in presenting a coherent picture on the basis of both older and very recent literature. The treatment is critical and speculation is deliberately kept at a minimum. Another feature of the book is the historical perspective it provides and the tribute it pays to great scientific forebears, foremost among them Ramon y Cajal and Ross Harrison. The table of contents sufficiently characterizes the book. The emphasis throughout is on cellular processes, among which the author distinguishes five main kinds: proliferation, migration, growth, interaction, and death. Little or no attention is devoted to the ontogeny of overall patterns of behaviour, particularly in normal animals. It depends on the reader whether this will be considered a defect or not. It should perhaps be mentioned that ch.2 contains discussions of polarity, patterns, and intercellular communication during development which do not confine themselves to the nervous system. Ch. 7 ends with a section entitled "Toward a theory of neuronal specificity". The book is well produced and illustrated with photographs and good line drawings, all especially prepared for this book. (There are a few errors and omissions in the captions of the figures.) The bibliography covers no less than 116 pages. Unfortunately there is no author index; the subject index could have been more detailed. 48 DIFFERENTIATION AND FUNCTION OF THE HYPOPHYSEAL-TARGET ORGAN SYSTEM IN CHICKEN EMBRYOS. 1970. By B. MESS and K. STRAZNICKY Akademiai Kiado, Budapest. Studia Biologica Academiae Scientiarum Hungaricae, no. 9. 100 pp., 35 figs., 6 tabs., subject index. $ 3.60 Decapitated chick embryos with or without homografted pituitary; structural and functional relationships between hypothalamus, adenohypophysis, and thyroid and adrenal cortex res- pectively; autoradiography, electron microscopy, hormone essays, thiouracil and metopyrone treatment. 49 THE ONTOGENESIS OF CORTICAL CIRCUITRY: THE SPATIAL DISTRIBUTION OF SYNAPSES IN SOMESTHETIC CORTEX OF NEWBORN DOG. 1970. By M. E. MOLLIVER and H. v. d. LOOS Springer, Berlin. Ergebnisse der Anatomie und Entwicklungsgeschichte, Bd. 42, H. 4. 54 pp., 27 figs., 1 tab. Quantitative electron-microscopic study; selective literature review relative to cortical development. 343 50 THE EMBRYOLOGY OF THE HUMAN THYROID GLAND INCLUDING ULTIMOBRANCHIAL BODY AND OTHERS RELATED. 1971. By S. SUGIYAMA Springer, Berlin. Ergebnisse der Anatomie und Entwicklungsgeschichte, Bd. 44, H. 2. Ill pp., 35 figs., 5 tabs., subject index. ISBN 3 540 05425 1, 0 387 05425 1 Histological and morphometric study based on embryos and fetuses from 5 weeks till term; contains data on thymus and parathyroid gland; lengthy bibliography. Dissertations 51 HISTOKEMISKE UNDERS0GELSER over udviklingen af led- og knoglesystemet hos humane fostre i forste halvdel af den prenatale periode (Histochemical investigations on the develop- ment of the joint and bone systems of the human fetus during the first half of the prenatal period). 1970. By H. ANDERSEN M.D. Thesis, Kobenhavn. 115 pp., 2 diagrs., 22 figs., subject index. English summary (4 pp.) Embryos and fetuses of 8-179 mm CRL; synovial joints; general osteogenesis; central areas of face and palatine processes; clavicle; lengthy bibliography. 52 THE FETAL ENDOCRINE PANCREAS, a quantitative morphological approach. 1970. By F. A. VAN ASSCHE "Agregation" thesis, Louvain. 99 pp., 23 figs., 30 tabs. Quantitative and qualitative morphological and biochemical studies of the endocrine pancreas of human newborns of the following classes: from normal mother, from diabetic mother, erythroblastotic, a-thalassemic, anencephalic with or without functional hypothalamo-hypophy- seal system. 53 DEVELOPMENT OF THE RENAL CORPUSCLE AND THE JUXTAGLOMERULAR APPARATUS, a light and electron microscopic study. 1971. By J. KAZIMIERCZAK Ph.D. thesis, Copenhagen. Acta Pathologica et Microbiologica Scandinavica, Sect. A, Suppl. 218, 65 pp., 82 figs., 1 tab., subject index Study on kidneys of newborn pigs, supplemented by newborn rats and two human fetuses; reconstructions of five stages of glomerulogenesis; numerous light and electron micrographs. 54 RECHERCHES SUR LES STYLETS MANDIBULAIRES ET MAXILLAIRES DE RHODNIUS PROLI- XUS. 1970. By J.-M. PINET Ph.D. thesis, Paris. Ann. Inst. Nat. Agr., Paris, Tome 6 (N.S.), 253 pp., 70 figs., 10 pis. Part one (110 pp.) contains a morphological and ultrastructural study of the development of the stylets during the moulting cycle, and an experimental-morphological analysis of the potencies of the styligenic organ and of the development of coaptations (fitting regions) between pairs of stylets. 55 CONTRIBUTION A L'ETUDE EXPERIMENTALE DE LA DIFFERENCIATION SEXUELLE CHEZ UN HERMAPHRODITE SIMULTANE (Eisenia foetida Sav.). 1970. By J.-C. RELEXANS Ph.D. thesis, Bordeaux. 81 pp. (mimeographed), photographs, tables, diagrams. Normal gonad development; effects of temperature shocks, nutritional status, and gonad transplantation on sex determination and differentiation. 344 56 DE VROEGE ONTWIKKELING VAN HET BINNENOORGEBIED (The early development of the inner ear region). 1970. By C. H. WAAR M.D. thesis, Leiden. 98 pp., 44 figs. English summary (3 pp.). Human embryos of 4.4-16 mm CRL (reconstructions of brain and inner ear); one human anencephalic embryo of 9.5 mm CRL; 15-day rat embryos. 57 SOME ASPECTS OF THE HEREDITARY DEFECT EPITHELIOGENESIS IMPERFECTA LINGUAE BOVIS (Smooth-tongue), studies on differentiation and keratinization in tongue epithelium. 1970. By Z. M. WEISMAN-HAMERMAN Ph.D. thesis, Utrecht. 135 pp., 42 figs., 15 tabs. One chapter (12 pp.) describes the differentiation of the tongue epithelium in normal and mutant embryos, and some experiments on regeneration of tongue epithelium. An appendix (11 pp.) describes preliminary experiments on the culture in vitro of tongue epithelium from rat embryos. 58 ON THE PHYLOGENY AND THE ONTOGENY OF THE HUMAN LARYNX, a morphological and functional study. 1970. By J. WIND M.D. thesis, Free University, Amsterdam. Wolters-Noordhoff, Groningen. 157 pp., 60 figs. $ 15.60 One chapter (20 pp.) describes the developmental anatomy of the larynx in embryos of 8, 23, and 47 mm CRL (reconstructions), in the fetus, and in the postnatal period; brief discussion of teratology and functional development. Symposium reports 59 LES APPORTS RECENTS DES CULTURES ET DES GREFFES EN BIOLOGIE ANIMALE. 1971. Masson, Paris. 353 pp., 67 figs., 23 pis., 22 tabs. Fr. 60.— This volume embodies the proceedings of a conference held at Besancon in 1969. It is a reprint, with change of pagination, from "L'Annee Biologique", vol. 9, nr. 5-10, p. 247-590 (1970). The book contains a rather heterogeneous collection of 38 papers, which have not much more in common than that the research reported as a rule involved either organ and cell cul- ture or transplantation, or both. Apart from three Belgians all speakers were French. The papers are grouped in four sections as follows: Organogenesis and cellular differentiation (7 papers); Organogenesis and cellular physiology (7); Sexual differentiation (15); Regeneration, endocrinology, pathology (8). There is an opening lecture by Et. and Em. Wolff describing the tortuous ways which led them from the culture of embryonic organs to that of cancerous tissues, with emphasis on the nutritive factors involved. The section on sexual differentiation is opened by a lengthy discussion by P. Brien of the general principles of gametogenesis and sexual development in both plants and animals. The great majority of the papers report partly or entirely on unpublished research carried out on a wide variety of organ systems of many vertebrate and invertebrate species. Some of the papers are very short, and none have summaries; the longest papers number about a dozen pages. Most papers are followed by brief discussions. The significance of this book perhaps lies not so much in the individual papers, which vary in content and importance, as in the fact that it provides a cross-section of what is going on in several important areas of experimental zoology in France. Many of the leading French schools are represented, often by their younger members who have just started publishing. The book is well printed and adequately illustrated, but has no indexes. The binding is weak. 345 60 CARDIAC DEVELOPMENT WITH SPECIAL REFERENCE TO CONGENITAL HEART DISEASE. 1970. Edited by O. C. JAFFEE University of Dayton Press, Dayton, Ohio. 168 pp., 97 figs., 8 tabs., subject index. $ 9.00 Contributors: Goerttler, Jaffee, G. LeDouarin, N. LeDouarin, Nihill, Nora, Patten, Patter- son, Shaner, Sissman, Van Mierop, Vargo This book contains the 12 papers read at an international Symposium held in Dayton, Ohio in June 1968. The Symposium had an attendance of 41. Among the contributors were five pediatricians, three biologists, two anatomists, one pathologist, and one veterinarian. The earliest stages of heart development were not considered. Most papers deal with the functional embryonic heart in man, pig, and chick. Various structural, functional, electrophy- siological, teratological, and genetical aspects are discussed. One paper describes epidemiolo- gical work. Three papers (one each by Patten, Shaner, and Patterson) are little more than abstracts, but some of the others are quite extensive (up to 28 pages). All papers are in English. The discussions held at the Symposium are not recorded. The book is produced in offset print and is adequately illustrated. 61 INTERCELLULAR INTERACTIONS IN DIFFERENTIATION AND GROWTH (in Russian). 1970. Edited by G. V. LOPASHOV, N. N. ROTT, and G. D. TUMANISHVILI Publishing House Nauka, Moscow. 256 pp., 113 figs., 13 tabs. Contributors: Belousov, Bozhkova, Buznikov, Campbell, Dettlaff, Dyban, Friedenstein, Gurdon, Ivanov, Konyshev, Kvinihidze, Lopashov, Rott, Salamatina, Stroeva, Tarkowski, Toivonen, Tumanishvili, Yazykov This book is in Russian and is announced only briefly. It contains the proceedings of a Symposium held in Tbilissi (Tiflis) in November 1968. Among the contributors were two from Great Britain and one each from Poland and Finland. The 19 papers read range in length from about 10 to about 20 pages, and are followed by brief discussions. Some are mainly theoretical, others describe work performed on a variety of developing systems, sometimes with sophisticated methods. 62 TISSUE METAPLASIA (in Russian). 1970. Edited by M. S. MITSKEVICH, O. G. STROEVA, and V. I. MITASHOV Publishing House Nauka, Moscow. 198 pp., 86 figs., 2 tabs, (paper) Contributors: Fridenshtejn, Khrushchov, Levander, Lopashov, Makarov, Mikhajlov, Novak, Polezhaev, Stroeva, Vakhtin This book is in Russian and contains the proceedings of a Symposium held in Moscow in September/ October, 1968. The ten papers discuss various aspects of tissue metaplasia in ver- tebrates, and their relationships with embryonic and postembryonic processes of induction. Three papers deal with blood cells, one with pigmented eye tissues, and one with cell cloning in vivo. 63 HAIR GROWTH. 1969. Edited by W. MONTAGNA and R. L. DOBSON Pergamon Press, Oxford. Advances in biology of skin, vol. IX. 601 pp., 369 figs., 63 tabs. Author and subject indexes. SBN 08 012967 6. $ 21.50, £ 8.— Although the Symposium of which this volume is the report took place as long ago as 1967, we feel the book is important enough still to be briefly reviewed. We will limit ourselves to those contributions which we consider to be of particular interest to developmental biologists (nine out of a total of 35). The first five contributions explicitly deal with problems of hair and feather development: J. Cohen on interactions of dermis, epidermis and dermal papillae in the chick (18 pp.); R. F. 346 Oliver on regeneration of the dermal papilla of rat whiskers (16 pp.); Margaret H. Hardy on the differentiation of mouse hair follicles and hairs in vitro (26 pp.); Mary Bell on the ultrastructure of developing fetal monkey hair follicles (22 pp.); and W. L. Epstein and H. I. Maibach on cell proliferation and movement in human hair bulbs (16 pp.). All these contain reports of original results, while the first and third paper also contain a review section. Other contributions of interest are those by A. F. Silver et al. on anagen initiated by plucking compared with spontaneous anagen; W. E. Straile on sites of dermal-epithelial inter- actions in sensory (tylotrich) hair follicles (with emphasis on nerves and blood vessels); P. F. Parakkal on the fine structure of the mouse anagen hair follicle; and J. H. Mottaz and A. S. Zelickson on the ultrastructure of hair pigment. These papers are reports of original research. The book is very well produced and illustrated. Collections of papers 64 CULTURES D'ORGANES D'INVERTEBRES. 1969. Edited by H. LUTZ Gordon & Breach, Paris. Cours et Documents de Biologie, vol. I. 281 pp., 20 figs., 15 pis., 13 tabs. SBN 677 50100 5. £ 9.17.6. and $ 23.70 INVERTEBRATE ORGAN CULTURES. 1970. Edited by H. LUTZ Gordon & Breach, New York. Documents on Biology, vol. 2. 266 pp., 20 figs., 15 pis., 13 tabs. SBN 677 30100 6 cloth SBN 677 30105 7 paper. Cloth $ 22.00 and £ 9.25. Paper $ 7.50 and 63 s. These two volumes are almost identical in content and production, and will therefore be reviewed as one book. The book contains a somewhat heterogeneous collection of papers pre- sented at a Colloquium held in Clermont-Ferrand in April 1968. All of the eleven papers are by French authors. Some papers are lengthy reviews, while others are brief reports on original research, and others again are a mixture of the two. Not all papers are even concerned with the topic that has given the book its name. Whether the book is suitable for students, as the preface to the series states, is questionable. We will restrict ourselves, with one exception, to mentioning those papers that deal with problems of morphogenesis and differentiation as elucidated by organ culture. The book is opened by a long review of methods and media for invertebrate organ culture by N. le Douarin (64 pp. plus 11 pp. of bibliography). There follow reviews by L. Gomot on differentiation and morphogenesis in molluscs, and by C. Ziller-Sengel on morphogenesis of planarian regeneration blastemas. A longer review by Gomot deals with sex differentiation in molluscs. P. Lubet and W. Streiff report on the effect of ganglia on penis morphogenesis and gonad activity in Crepidula. Th. Lender has contributed a review on the organotypic culture of insect tissues, with sections on embryonic development and postembryonic differentiation. P. Nardon and G. Plantevin report on the metamorphosis of the mid-gut of Galleria in vitro. The most recent literature cited in all papers dates from 1967. The books are well produced and adequately illustrated. Unfortunately they have no indexes, which reduces their value as works of reference. 65 ORGAN CULTURE. 1970. Edited by J. A. THOMAS Academic Press, New York. 525 pp., 166 figs., 19 pis., 13 tabs., subject index. ISBN 0 12 688150 2. $ 29.50 Contents: I. The general principles of organ culture in vitro (Et. Wolff); II. Differentiation of organs in natural media (Le Douarin); III. Culture of embryo organs in synthetic media (Kieny); IV. Sexual differentiation and intersexuality in vitro (Haffen); V.. The action of hor- mones and inhibitors on organs cultured in vitro (Dieterlen-Lievre); VI. Culture and para- biosis of blastoderms (Salzgeber); VII. Organ culture in the invertebrates (Ziller-Sengel); VIII. In vitro reassociation of dissociated cells (Sigot); IX. Study of organogenesis by dissoci- ation and reassociation of embryonic rudiments in vitro (Sengel); X. Organ chimeras and organ culture of malignant tumors (Em. Wolff) This book is the English translation of a book first published in French in 1964 under the title "Les cultures organotypiques". Its ten chapters are excellent synthetic reviews by Prof. Et. Wolff and several members and former members of his group at Nogent. The book is suf- 347 ficiently characterized by the table of contents printed above. An important feature of the present edition is that all chapters have been updated by means of sometimes lengthy addenda, describing the most important work published from 1963 till 1968. The numerous original illustrations are reproduced, while the addenda have their own new illustrations. Many of the illustrations are photographs which are very well reproduced, sometimes better than in the original. The translation is due to the "Express Translation Ser- vice"; it is satisfactory, although clumsy in places, and clearly not done by a person trained in biology. The book is well printed on heavy quality glossy paper. It has a subject index, but the ab- sence of an author index is badly felt. Surely this could have been provided at a slight increase in price, making the book much more useful as a work of reference. 66 TISSUE INTERACTIONS DURING ORGANOGENESIS. 1970. Edited by Et. WOLFF Gordon and Breach, New York. Documents on Biology vol. 1. 239 pp., 95 figs., 10 tabs.. 16 pis., author index. ISBN 0 677 13010 4, $ 21.00, £ 8.15 (cloth). ISBN 0 677 13015 5, $ 7.50, £ 3.2.6. (paper) This is the English translation of a book published in French in 1969. The French version was reviewed in Gen. Embryol. Inf. Serv. 13, 1969, p. 338. The English translation is good, although not idiomatic. One contribution, that by Tiedeman, was left out of the present book, so that authorship is now entirely confined to members or former members of the school of Et. Wolff in Paris, and the experimental material to the chick embryo. No attempt has been made to update the various contributions. Since the original series of seminars was held in 1967, this means that the most recent advances are not included. Nevertheless, it is very convenient for English-speaking readers that all this important material is now available in concise and coherent form in English. The book is very well printed and illustrated. It has no subject index. The price of the paperback edition is reasonable. Cellular Developmental Biology (see also 14, 16, 20, 59, 61, 81, 82, 85, 86, 96) Treatises 67 CELL DIFFERENTIATION. 1970. Edited by O. A. SCHJEIDE and J. DE VELLIS van Nostrand Reinhold, New York. 622 pp., 204 figs., 26 tabs., subject index. £ 10.— Contents: I. General concepts 1. Introduction, 2. Molecular differentiation in primordial systems, 3. Theoretical considerations regarding cell differentiation; II. Molecular biology 4. Informational molecules and differentiation, 5. Transcriptional patterns during differen- tiation, 6. Cellular and molecular events associated with mitosis and meiosis, 7. Nuclear- cytoplasmic transfers, 8. Translocation of macromolecules, 9. Biomembrane synthesis and assembly; IN. Biochemistry and metabolism 10. Senescence: cell biological aspects of aging, 11. Enzyme regulation during cell differentiation, 12. Specific macromolecular changes during development; IV. Molecular and structural differentiation of cells 13. Ultrastructural differentiation, 14. Organelle synthesis and assemoly, 15. A model for erythrocyte differen- tiation, 16. Estrogen-directed ^differentiation of the avian liver, 17. Myogenesis, 18. Induction and differentiation of cartilage and bone cells, 19. Neural cell differentiation, 20. Differen- tiation in plant cells The word "differentiation" has two accepted meanings, one spatial, the other temporal. Spatial differentiation is also called arealization or pattern formation, while temporal differen- tiation is more or less synonymous with cyto- or histogenesis. The present book is almost ex- clusively about the temporal differentiation of cells, of which much more is known in terms of structure, chemistry, and physics. In fact, the book may be considered as dealing with the long-term temporal aspects of cell biology, rather than with a particular aspect of embryology. Accordingly, the definition of differentiation from which it starts is very broad indeed, and not restricted to processes occurring in embryonic cells. The book is intended primarily for advanced students, instructors, and active investigators. It was written by 23 specialists, all of them North-American. It is impossible to review it 348 extensively here; as a partial substitute the complete table of contents is printed above. This will show the extraordinarily broad scope of the book; this, together with the unquestionable high standard of authorship, ensures that the book will become a classic in its field. We can- not but feel grateful to the editors and authors for the tremendous amount of work and thought that has gone into it. One general feature of the book may be mentioned: the authors were asked to organize their material according to their personal perspectives or biases, and not to avoid far-reaching interpretations and concepts. Even though some of these may later turn out to be wrong, in the present state of flux in which this field finds itself they serve the purpose of stimulating discussion, thought, and further experimentation. The book is beautifully illustrated and produced with the utmost care. All chapters have extensive bibliographies. Some of these are up-to-date until 1968, others until 1967 or 1966. The book has a rather brief subject index; the absence of an author index is regrettable but perhaps excusable in view of the inevitable delay its composition would have caused. Monographs 68 NUCLEUS AND CYTOPLASM. Second edition. 1970. By H. HARRIS Clarendon Press, Oxford. 199 pp., 16 figs., 18 pis., 1 tab., author and subject index. SBN 19 854113 9. $ 8.75, £ 1.90 (cloth), $ 3.75, £ 0.90 (paper) The first edition of this important and stimulating book appeared in 1968 and was reviewed in "General Embryological Information Service", Suppl. 12, 1968, p. 13. The interest which it met, and the rapid advances made in the last few years, fully justify the present enlarged edition. Much new material has been incorporated, but the author has seen no reason for a fundamental revision of his main conclusions, which entail much emphasis on the cytoplasmic rather than nuclear control of protein synthesis. The organization of the subject matter has remained unaltered, but the following new sec- tions have been added: ch.2 ("The genetic operator model"): a section on negative control, the operon, and the repressor; ch. 3 ("The search for the messenger"): a section on '45S' RNA; ch. 4 ("Regulation"): a section on regulation by enzyme degradation; ch. 6 ("Differentiation"): a section on stimuli for differentiation. In ch. 5 (now called "Cell fusion") the section on the transfer of information from nucleus tot cytoplasm has been greatly expanded. Many of the original photographs have been replaced by newer ones. The chapter biblio- graphies contain about 50% more titles, even though many of the original references were eliminated. 69 CELLULAR MECHANISMS OF CHROMOSOME DISTRIBUTION. 1970. By P. LUYKX Academic Press, New York. International Review of Cytology, suppl. 2. 180 pp., 21 figs., 8 tabs., author and subject index. A general, comprehensive theory of chromosome movement in cell division is provided; chapter I briefly reviews evidence suggesting that a precisely determined chromosome com- plement is a prerequisite for cell reproduction and development. Dissertations 70 MORPHOLOGISCHE ANALYSE VAN DE EERSTE CELDELING VAN HET EI VAN LYMNAEA STAGNALIS L., een electronenmicroscopisch onderzoek, (Morphological analysis of the first cleavage of the egg of Lymnaea stagnalis L., an electron-microscopical investigation). 1971. By W. BERENDSEN Ph.D. thesis, Utrecht, 2 vols. English summary (2 pp.) ^v vol. 1 text (mimeographed). 110 pp., 16 figs., 7 tabs. vol. 2 illustrations. 92 electron micrographs Electron-microscopical study of fertilized egg and first cleavage division; formation of mid- body and blastocoel; discussion of mechanisms of cell division. 349 Symposium reports 71 HEMIC CELLS IN VITRO. 1969. Edited by P. FARNES Williams & Wilkins, Baltimore. In vitro, vol. 4. 192 pp., 60 figs., 20 tabs., subject index. $ 13.50 Although this Symposium was held in 1968, several papers contain interesting information which was very new at that time. We will mention only those papers thought to be of special interest to our readers. N. L. Petrakis et al. deal with factors affecting the location of bone marrow in the mouse embryo (chiefly the mesenchyme surrounding the bone rudiments). L. G. Lajtha discusses kinetic models of hemopoietic stem cell populations. T. R. Bradley et al. deal with in vitro colony formation by hemopoietic cells (granulocytic clones), while T. Rytomaa describes ex- periments leading to the postulation of a specific granulocytic chalone and antichalone. E. Goldwasser and M. Gross report on recent experiments on erythroid differentiation in vitro. Finally, B. E. Barker reports on the blastogenesis and the cytological and ultrastructural dif- ferentiation of lymphocytes in response to pokeweed mitogen (a phytohemagglutinin). The book is well produced and illustrated. It also contains 60 pages of abstracts of papers presented at the 19th annual meeting of the Tissue Culture Association. 72 CONTROL OF ORGANELLE DEVELOPMENT. 1970. Edited by P. L. MILLER University Press, Cambridge. Symposia of the Society for Experimental Biology, No. 24. 533 pp., 156 figs., 33 pis., 64 tabs., author and subject index. ISBN 0 521 07855 5. $ 17.50, £ 7.— This volume embodies the 23 papers presented at the 24th S.E.B. Symposium held in London in September 1969 The title does not convey the true scope of the Symposium, because apart from the assembly and transmission of certain organelles many contributions deal with the molecular biology (DNA, RNA, ribosomes, and protein synthesis) of organelles, particularly mitochondria and plastids. In addition, some contributions are concerned with the cytoplasmic control of nuclear function. The majority of the papers describe or review recent work on unicellular organisms and plants; a few only report on work with amphibian and mammalian material. It may be stated that the volume as a whole presents a comprehensive survey of the present state of our knowledge in this field of investigation. We will specifically mention only a few papers judged to be of particular interest to our readers. These are: a paper by I. B. Dawid on the nature of mitochondrial RNA in Xenopus oocytes; one by H. G. Schweiger on RNA synthesis in Acetabularia; one by N. de Terra on cytoplasmic control of macronuclear events in Stentor; and one by J. B. Gurdon on autonomy vs. non-autonomy of nuclear activity in multi- cellular organisms. The book's production and illustrations are up to the high standard usual in this series. Collections of papers 73 ORIGIN AND CONTINUITY OF CELL ORGANELLES. 1971. Edited by J. REINERT and H. URSPRUNG Springer, Berlin. Results and Problems in Cell Differentiation, vol. 2. 356 pp., 135 figs., 1 tab., ISBN 3 540 05239 9. ISBN 0 387 05239 9. DM 72.—, $ 20.80 Contents: 1. Assembly, continuity, and exchanges in certain cytoplasmic membrane systems; 2. Origin and continuity of mitochondria; 3. Origin and continuity of plastids; 4. Origin and continuity of Golgi apparatus; 5. Origin and continuity of cell vacuoles; 6. Origin and con- tinuity of polar granules; 7. Centrioles; 8. Origin and continuity of microtubules; 9. Origin and continuity of desmosomes; 10. On relationships between endosymbiosis and the origin of plastids and mitochondria; 11. Cell organelles and the differentiation of somatic plant cells The first volume of this new series (1968) was favourably received. The editors' preface to the series was cited in full in Gen. Embryol. Inf. Serv. 13, 1969. The publication of the present volume was delayed by problems of "author synchronization". Of the 17 specialist authors 12 are from the USA, two each from Great Britain and Western Germany, and one from France. 350 As may be seen from the table of contents almost all extra-nuclear cell organelles are re- presented; an exception are the microfilaments, but these are perhaps too "young" f°r a review. The longest review is that on centrioles (52 pp.), the shortest that on polar granules (12 pp.). The chapter on vacuoles includes discussions of lysosomes and peroxisomes. All reviews are competent and up-to-date. The only chapters that deal with developmental biology in the more classical sense are that on polar granules and that on the differentiation of plant cells. Nevertheless, the book is sure to gain an important place within the domain of developmental biology in the broad sense, in which increasing stress is being placed on the role of self-assembly and controlled assembly down to the molecular level. The book is very well produced and superbly illustrated with numerous photographs, elec- tron micrographs, and drawings. As in the first volume, the absence of indexes is to be regretted. The price seems unnecessarily high. Developmental Biochemistry and Molecular Biology (see also 8, 14, 16, 17, 27, 34, Textbooks 43, 52, 67, 68) 74 BIOCHEMISTRY OF DIFFERENTIATION. 1970. By Ch. A. PASTERNAK Wiley-Interscience, London. 203 pp., 72 figs., 2 pis., 9 tabs., subject index. ISBN 0 471 66900 8. £ 2.75 Contents: 1. Introduction: Differentiation in terms of specific proteins; 2. Differentiation in microbes and plants; 3. Differentiation in animals: sea urchins and frogs; 4. Differentiation in animals: birds and mammals; 5. Hormones and vitamins; 6. Pathological consequences: cancer; 7. Mechanism: facts; 8. Mechanism: hypotheses This book is based on a series of lectures given to third-year biochemistry and medical students. The author is a biochemist, and his use of embryological terms sometimes deviates from current usage. Although the book cannot be regarded as an introduction to chemical embryology, as a summary it is useful for general biologists and developmental morphologists alike. Its coverage of differentiation is comprehensive, indeed more so than in many embryo- logical texts. Chapters 2 and 3 deal with differentiation in a variety of systems including bacterial spores, slime moulds, unicellular algae, higher plants, sea urchin and frog embryos, and metamorpho- sing frogs. Chapter 4 deals briefly with early development in birds and mammals, and further discusses examples of organogenesis in mammals (structural proteins and enzymes) and dif- ferentiation of red and white blood cells (including immunological aspects). Of particular interest is the discussion of cancer in relation to growth control in ch. 6. The last two chapters deal with possible mechanisms of differentiation. Chapter 7 first discusses the concept of totipotency, then the evidence for cytoplasmic control of gene activity. The discussion of possible mechanisms for the control of protein synthesis in ch. 8 is condensed, and recent models of gene control in higher organisms are not mentioned, which results in a rather too simplified view. The problem of the origin of spatial patterns of diffe- rentiation, so challenging for the biochemist of tomorrow, would have deserved a somewhat longer discussion than the one sentence it gets. The book is adequately illustrated; all chapters are concluded by carefully selected classi- fied lists of further readings. 75 MOLECULAR BIOLOGY OF THE GENE. Second edition. 1970. By J. D. WATSON W. A. Benjamin, New York. 684 pp., 276 figs., 1 pi., 20 tabs., subject index. SBN 0 8053 9020 0 (cloth) and SBN 0 8053 9603 9 (paper). $ 17.50 The first edition (1965) of this remarkable book was reviewed in General Embryological Information Service 12, 1967, p. 274. Therefore, apart from mentioning that the book is now almost 150 pages longer, and that many new findings were incorporated up to the last minute, we will restrict ourselves to the following remark. From the point of view of the developmental biologist the most important alteration is that there are now separate chapters on "molecular embryology" (55 pp.) and on antibody synthesis (27 pp.); subjects which together occupied only 27 pp. in the first edition. The former chapter 351 is almost entirely new, and constitutes an excellent summary of the molecular-biological aspects of cell differentiation. It includes (among other things) discussions of bacterial spo- liation, the differences between procaryotic and eucaryotic cells, differentiation in the cel- lular slime moulds, cell cloning in vitro, the cell cycle, euchromatin and heterochromatin, repetitive DNA, gene amplification, stable mRNA, nuclear transplantation, and cell fusion. The addition of this chapter makes the book more balanced and even more useful than it already was. Developmental Physiology (including endocrinology, immunology, etc.) (see also w 1, 11, 13, 21, 26, 27, 34, 36, 47, 48, 60, 67, 84, 87) Monographs 76 THE TRANSMISSION OF PASSIVE IMMUNITY FROM MOTHER TO YOUNG. 1970. By F. W. R. BRAMBELL North-Holland, Amsterdam; American Elsevier, New York. Frontiers of Biology, vol. 18. 401 pp., 72 figs., 18 tabs., 9 pis., author and subject indexes. SBN 7204 7118 4. $ 18.20, 152 s., H.fl. 65,— This book is a comprehensive and up-to-date review of the subject indicated in the title. The author for many years was the world's leading authority in this field. We can only be thankful that he was able to complete the manuscript before his death. The book is best characterized by a quotation from the preface: The plan has been to review for each species, or group of similar species, the route of transmission including the development and arrangement of the foetal membranes which are involved in transmission before birth and the mammary secretion of antibodies and struc- ture of the neonatal intestine which absorbs them when transmission is after birth; the kinds of molecules that are preferentially transmitted; how they can interfere with each others transmission; the duration and termination of transmission; the waning of passive immunity and the beginning of active immunity. A separate chapter has been devoted to the comparative treatment of haemolytic disease in man and animals. The final chapter deals with the resemblances between the phenomena of transmission, anaphylactic sensitiz- ation and y-globulin catabolism and offers a working hypothesis to account for transmis- sion and, possibly, y-globulin catabolism. The species, or groups of species dealt with in consecutive chapters are the birds, the rabbit, the rat and mouse (two chapters), the guineapig, cat, dog, and hedgehog, the pig and horse, the ruminants, and finally man and the monkey. The book is of interest to embryologists particularly because it throws new light on the functions of the placenta and foetal membranes. The book is beautifully produced and superbly illustrated with line drawings and photographic plates. It has a 41-page bibliography. 77 ASPECTS DYNAMIQUES DU METABOLISME GLUCIDIQUE CHEZ L'EMBRYON DE RAT, action de substances hypoglycemiantes et teratogenes. 1970. By J. L. DE PLAEN Arscia, Bruxelles; Maloine, Paris. Collection "Medico-Monographies d'Agreges", 250 pp., 68 figs., 41 tabs. F. Belg. 500 ; Fr. 70 (paper) Surprisingly little is known about the carbohydrate metabolism of the mammalian embryo during the period of organogenesis. Yet such knowledge is indispensable for the interpretation of the teratogenetic effects of hypoglycemia-producing agents used in the treatment of maternal diabetes. The present research monograph fills this gap to a considerable extent. It is concerned mainly with rat embryos of 12-16 days gestational age. Professor H. Tuchmann-Duplessis wrote a laudatory preface to the book. The book is in two main parts, the first of which deals with the carbohydrate metabolism and respiration of the isolated rat embryo and its organs. Part two reports on experimental results obtained by the administration of hypoglycemia-producing substances to the pregnant rat and their effects on the embryo in vivo and in vitro. The author tries to establish a link with the teratogenic effects of these substances, which however does not appear to be straightfor- ward. The book has an extensive English summary and a 14-page bibliography. There are no indexes. 352 78 FOETAL AND NEONATAL IMMUNOLOGY. 1971. By J. B. SOLOMON North-Holland, Amsterdam; American Elsevier, New York. Frontiers of Biology, vol. 20. 396 pp., 60 figs., 24 tabs., 8 pis., author and subject indexes. ISBN 0 7204 7120 6, 0444 10069 5. $ 20.00, 168 s., Hil. 72,— Contents: 1. Introduction, 2. The reticulo-endothelial system in foetal development, 3. Lymphocytopoiesis — the natural development of immunocompetent cells in central and peripheral lymphoid tissue, 4. The placental barrier, 5. Maternal antibody. I. Routes and specificity of transmission, 6. Maternal antibody. II. Protective effects and immunological hazards, 7. Natural immunity, 8. Immunological tolerance, 9. Ontogeny of immunoglobulin synthesis, 10. Ontogeny of defined immunity in birds, 11. Ontogeny of defined immunity in mammals, 12. Ontogeny of resistance to infection, 13. The unification of foetal and post- natal immunology in mammals and birds by age-equivalence, 14. Conclusion. This thorough monograph brings together a vast amount of information on the development of immune responses in mammals and birds. The unifying principle is the author's embryolo- gical viewpoint, particularly his use of the concept of age-equivalence. He shows that the onset of immunological function occurs at the same stage of morphological development and phy- siological maturity in both large and small animals. The book is sufficiently characterized by the table of contents printed above. Age-equivalence criteria are discussed in a separate chapter at the end of the book (ch. 13). The book is well produced and is illustrated with many graphs and a few photographs. All chapters have their own extensive and up-to-date bibliographies; a notable feature is the inclusion of rather much Eastern-European work. It is regrettable that the author index refers only to the text, not to the bibliographies. Dissertations 79 ^ACQUISITION DE LA COMPETENCE IMMUNOLOGIQUE CHEZ LES VERTEBRES, Etude chez la larve du Crapaud accoucheur Alytes obstetricans. 1970. By L. DU PASQUIER Ph.D. thesis, Bordeaux. 2 vols. vol. 1 text (mimeographed). 141 pp., 15 tabs. vol. 2 illustrations. 32 plates. Comprehensive study, made with a variety of modern techniques, of the development and function of the immune system of the tadpole of Alytes. Developmental Genetics and Evolution (see also 8, 25, 72) Symposium, reports 80 GENETICS, SELECTION, AND HYBRIDIZATION OF FISHES (in Russian). 1969. Edited by B. I. CHERFAS Publishing House Nauka, Moscow. 310 pp., 33 figs., 59 tabs. This book is in Russian and contains the proceedings of a Symposium held in Leningrad in March, 1967. We mention here only those papers which may be of interest to fish embryo- logists: 1) Genetics of sex determination and some questions on hormone regulation of sex in bony fishes (E. D. Vanyakina); 2) Experimental gynogenesis in carps (K. A. Golovinskaya); 3) On the gonadal development and fertilization processes in Ctenopharyngodon idella (Val.) (Yu. P. Bobrova); 4) Regulative correlation of sexes in fishes by feed-back mechanisms (V. A. Geodakyan and V. I. Kosobutskij); 5) The hybrids of the pacific salmon Oncorhynchus , in par- ticular the development and perspectives of usefulness (A. I. Smirnov); 6) Features of the embryonic-larval development of hybrids of some pond carps (A. P. Makeeva); 7) On the application of cytophysiological methods in the investigation of fish hybrids (M. A. Andriyas- heva); 8) Production of progeny from intergeneric hybrids of the white sturgeon and sterlet (I. A. Burtsev). Several papers contain good line drawings of embryonic and larval fish stages. 353 81 HETEROSPECIFIC GENOME INTERACTION. 1969. Edited by V. DEFENDI Wistar Institute Press, Philadelphia. Wistar Inst. Symp. Monogr. no. 9. 187 pp., 31 figs., 35 tabs., 7 pis., author and subject indexes. $ 7.50 (paper) Contributors: Baron, Boone, Conover, Coon, Davidson, Graham, Green, Knowles, Miggiano, Ohno, Pontecorvo, Talmage, Thorn This is the report of a Symposium held in October 1968 at the Wistar Institute, Philadelphia. Developments in the field of somatic cell fusion are very rapid, and consequently part of the subject matter in this book may already be out of date. Nevertheless, we consider it important enough to be briefly reviewed. Particularly the discussions following most of the papers may still provide stimulating ideas. The Symposium had 60 participants, most of them Americans. The book contains 14 short research papers, most of them dealing with aspects of the fusion of mammalian somatic cells and its genetic implications. The papers of most immediate in- terest to developmental biologists are: The fusion of cells with one- and two-cell mouse embryos (C. F. Graham); Interactions between genomes in somatic cell hybrids: studies on the regulation of differentiation (R. Davidson); and The preferential activation of maternally derived alleles in development of interspecific hybrids (S. Ohno). In the latter paper gene activation in somatic cell hybrids is contrasted with that in sexual hybrid combinations. The last paper of the Symposium is a highly mathematical discussion of morphogenesis by R. Thorn. Apart from being incomprehensible to those not well versed in mathematics, it seems strangely out of place in this volume. The book is well illustrated. 82 A DISCUSSION ON GENE ACTION AND ITS CONTROL. 1970. Organized by G. D. H. BELL, R. RILEY and J. M. THODAY Royal Society, London, Proceedings of the Royal Society London B, vol. 176, p. 247-366, 55 figs., 12 tabs. £ 1.75, $ 4.55 (paper) Contributors: Ashburner, Baglioni, Cove, Fincham, Gros, Gurdon, Harris, Korner, Paul, Sonneborn, Thoday, Wildermuth This is the report of a discussion meeting held in London in February 1970. It contains 11 short synthetic papers (two in the form of a summary only) . The first five full-length papers deal with gene action and its control in micro-organisms, Aspergillus, mammalian chromosomes, protein-synthesizing cells, and plants. Of the remaining papers three are of particular interest to developmental biologists: one by Gurdon on nuclear transplantation and the control of gene activity in animal development, one by Ashburner on the genetic analysis of "puffing" in polytene chromosomes, and one by Sonneborn that deals particularly with cortical inheritance in Paramecium. Sonneborn takes the opportunity to dis- cuss the question whether the whole of development is encoded in DNA: his tentative answer is that this is not always the case. Reproduction, Gametogenesis, Fertilization (see also 12, 20, 27) Treatises 83 FERTILIZATION, comparative morphology, biochemistry, and immunology, vol. 2. 1969. Edited by Ch. B. METZ and A. MONROY Academic Press, New York. 570 pp., 144 figs., 2 pis., 15 tabs., author, taxonomic, and subject indexes. $ 34.—, £ 15.17.- Contents: 1. The attachment of bacteriophages and the transfer of their genetic material to host cells (L. D. Simon and Th. F. Anderson); 2. Bacteria (G. Sermonti); 3. Fungi (E. A. Horenstein and E. C. Cantino); 4. Algae (L. Wiese); 5. Fertilization mechanisms in higher plants (H. F. Linskens); 6. Paramecium (K. Hiwatashi); 7. Fishes (E. Nakano); 8. Gamete structure and sperm entry in mammals (L. Pik6); 9. In vitro fertilization of the mammalian egg (C. Thibault); 10. Variations and anomalies in fertilization (C. R. Austin); 11. Control of fertility mechanisms affecting gametogenesis (H. Jackson) This is a sequel to a volume published in 1967 and reviewed in Gen. Embryol. Inf. Serv. 12, p. 284. This volume is more explicitly comparative in approach, and closely examines the whole 354 fertilization process and its biological conditions in specific groups of organisms (see contents above). Ample attention is devoted to biochemical and immunological aspects. An attempt has been made to bring together the literature from a wide variety of specializations, and to point out leads for future research. The book is dedicated to the memory of Albert Tyler, who played an important part in the planning of these two volumes. The book is opened by a memorial tribute to Tyler by the editors. The chapter bibliographies are as up to date as possible. In addition seven of the chapters have addenda outlining new findings published until early 1969. The book is beautifully printed and illustrated. Monographs 84 THE PHYSIOLOGY OF INSECT REPRODUCTION. 1970. By F. ENGELMANN Pergamon Press, Oxford. International series of monographs in pure and applied biology, vol. 44. 320 pp., 86 figs., 10 tabs., subject index. ISBN 0 08 015559 6. £ 7.50, $18.75 Contents: 1. The genitalia; 2. Sex determination; 3. Parthenogenesis; 4. Sex differentiation; 5. Gonadal development; 6. Mating; 7. Factors that effect egg production and fecundity; 8. Hormonal control of egg maturation; 9. Endocrine influence on reproduction in the male insect; 10. Oviposition; 11. Heterogony; 12. Viviparity; 13. Functional hermaphroditism; 14. Insect societies; 15. Glossary This authoritative and comprehensive monograph can be of great help as a work of reference to those working on insect developmental biology who have no time or opportunity to fami- liarize themselves with the vast and widely scattered literature on insect reproduction. The book is not suitable for beginning students, because of the concentrated style and because knowledge of the current terminology is presupposed. The recent literature is covered till 1968, but much of the older literature is also reviewed. The chapters which are of the most immediate interest to developmental biologists are chs. 2 through 5 (together occupying 49 pages), and ch. 12 on viviparity (10 pp.). Ch. 5 has separate sections on oocyte differentiation and vitellogenesis. The book is well produced and beautifully illustrated. Most of the figures taken from other sources have been redrawn. There is a useful but rather concise glossary. The bibliography covers 53 pages. The index is complete as to species, but rather restricted as to subjects. There is no author index. 85 ANIMAL GAMETES (Female), a morphological and cytochemical account of yolk formation in oogenesis. 1968. By V. NATH Asia Publishing House, London. 215 pp., 200 figs., author and subject indexes. $ 17.— This monograph is essentially a compilation of a wealth of material gathered from many sources. It is a sequel to the author's "Animal Gametes (Male)" published in 1965, in which he dealt with spermatogenesis in a similar manner. In this book the approach is again that of the morphologist rather than of the ceh biologist. The emphasis is on the detailed descript- ion and chemical characterization of the constituents of the developing oocyte in relation to the problem of yolk formation. The results of classical histological studies, cytochemical work, and ultrastructural analysis are compared and evaluated while adhering to a more or less strict taxonomic subdivision. This makes the book particularly suitable as a work of reference. The successive chapters are devoted to nuclear and nucleolar emissions, the yolk nucleus, the Golgi apparatus and lipids (four chapters, together taking up nearly half of the text), the mitochondria, the compound yolk and the role of accessory cells in its formation, and finally micropinocytosis and its role in the iricorporation of extra-ovarian proteins. The 200 figures and plates are brought together at the end of the text and are printed on glossy paper. The far greater majority are line drawings from many different sources; they are well reproduced, but it is irritating that the lettering is not always explained completely. The photomicrographs and electron-micrographs have not come out so well, and particularly the latter often compare unfavourably with the originals. The book is concluded by a nine-page bibliography in which most titles are older than 1966. The quality of the paper and binding is not very good, but the price is surprisingly low. 355 Symposium reports 86 COMPARATIVE SPERMATOLOGY. 1970. Edited by B. BACCETTI Accademia Nazionale dei Lincei, Rome and Academic Press, New York. 576 pp., 24 diagrs., 793 figs., 14 schemes, 6 tabs. ISBN 0 12 069950 8. $ 22.50 This Symposium was held in July 1969 in Rome and Siena, and was attended by 59 parti- cipants from many countries. The book contains the 47 papers read at the Symposium, with the brief discussions following them. The great majority of the papers deal with morphological and ultrastructural features of mature sperm and/or spermatogenetic stages. Phylogenetic and ta- xonomic aspects are considered in several papers. Of the three introductory papers that by Franzen on phylogenetic aspects of spermatozoa and spermiogenesis is a review, while that by Fawcett and Phillips on the ultrastructure and development of mammalian spermatozoa, and that by Nicander on the comparative fine structure of vertebrate spermatozoa are partly review and partly research report. The remain- ing 44 papers mainly report on original research. The majority range in length from about 8 to 16 pages. Taxonomic coverage is very broad, including many invertebrate classes (among which the arthropods, and particularly the insects are best represented) as well as the fishes, amphibians, reptiles, and mammals. Only half a dozen papers deal partly or entirely with chemical and physiological aspects of spermatology. The volume is concluded by a condensed paper by Afzelius entitled "Thoughts on comparative spermatology". The book is well illustrated, mainly with numerous very good electron micrographs and photographs printed on glossy paper. There are no indexes. 87 MAMMALIAN REPRODUCTION. 1970. Edited by H. GIBIAN and E. J. PLOTZ Springer, Berlin. 476 pp., 255 figs., 48 tabs. ISBN 3 540 05066 3 and 0 387 05066 3. DM 68.—, $ 18.70 This volume embodies the 20 papers presented at a Symposium held in Mosbach (Baden) in April 1970. Of the contributors ten came from the U.S.A. and seven from Western Germany. The papers vary greatly in length. About half are reviews, the other half bring either research reports or a mixture of original research and review. The subjects treated cover a broad range of structural, endocrinological, biochemical, genetic, and immunological aspects of all major phases of the reproductive process in mammals. The discussions held at the Symposium are not recorded. We will mention only those contributions considered to be of special interest to our readers. Among the reviews these are the introductory paper by Jost (Paris) presenting an outline of reproductive physiology and its developmental background (29 pp.); a paper by Bedford (New York) on mammalian sperm from ejaculation to syngamy (59 pp.); one by Koester (Gies- sen) on ovum transport (40 pp.); one by Brinster (Philadelphia) on the metabolism of the ovum between conception and nidation (35 pp.); and one by Edwards (Cambridge, England) on genetic aspects of early development (9 pp.). The following research papers may be specially mentioned: one by Elger et al. (Berlin) on the significance of hormones in sex differentiation; one by Beier et al. (Marburg) on endometrial secretion and early development; one by Krieg (Wurzburg) on the immunology of reproduction; and one by Goldman (Philadelphia) on inborn errors of steroidogenesis and steroid action. The book is well produced and adequately illustrated. It is regrettable that is has no indexes, even though their composition would have retarded publication. 356 88 SCHERING SYMPOSIUM ON MECHANISMS INVOLVED IN CONCEPTION. 1970. Edited by G. RASPE Pergamon Press, Oxford and Vieweg, Braunschweig. Advances in the Biosciences 4. 480 pp., 269 figs. SBN 08 017546 5 (hard cover); SBN 08 017547 3 (soft cover). $ 15.00; 140 s. Contributors: Adams, Austin, Bedford, Bennett, Blye, Brackett, Brinster, Caldwell, Chang, Dorfman, Edwards, Ericsson, Heller, Humphrey, Kirby, Koester, Lindner, Lobel, McCracken, Psychoyos, Schmidt-Matthiesen, Schomberg, Schumacher, Steinberger, Williams This is the report of a Symposium held in Berlin in March, 1969. It was attended by close to 200 investigators from the U.S.A., Britain, Germany, and several other European countries. The book contains the 25 research papers read at the Symposium and the discussions fol- lowing them. The subjects discussed fall into three main groups: 1) sperm capacitation, the role of cervical mucus, and sperm transport (8 papers); 2) egg transport, early blastocyst develop- ment in vivo and in vitro, and blastocyst implantation (11 papers); and 3) endocrine aspects, particularly corpus luteum function (6 papers). Some of the discussions contain additional literature references and figures. A connecting thread running through the book is the appli- cability of the findings reported to birth control. The book is produced in offset print, and in view of this could have been less expensive. The reproduction of the photographs is reasonably good. The book contains curricula vitae of the lecturers and an index to lecturers and participants in the discussions. Plant Development (general) Textbooks 89 CONTROL MECHANISMS IN PLANT DEVELOPMENT. 1970. By A. W. GALSTON and P. J. DAVIES Prentice Hall, Englewood Cliffs NJ. Foundation of Developmental Biology Series. 199 pp., 144 figs., 5 tabs., combined author and subject index. ISBN 0 13 171819 3, $ 6.95 (cloth). ISBN 0 13 171801 0, $ 3.95, £ 1.60 (paper) The approach followed in this book is unusual. This was possible because a companion volume in the same series will be devoted to patterns in plan development (Steves and Sussex). Therefore the present authors could omit almost all morphology and plunge into biochemistry right away. The book was written for advanced students, developmental biologists generally, and particularly molecular biologists. It aims at making the green plant more attractive as an object of study for the latter by concisely but clearly summarizing the present state of knowledge with regard to the major biochemical control mechanisms in plant development and their interrelations. No attention is paid to morphogenetic factors that have not yielded to chemical analysis so far. The chemical factors and processes discussed are, in this order: phytochrome and flowering, ethylene, auxins, gibberellins, cytokinins, abscisic acid, chemical reactions to injury, and senescence and abscission. Each chapter has a brief summary and a selective bibliography. The book is illustrated with graphs and diagrams, photographs, and good line drawings. 90 CROISSANCE ET DEVELOPPEMENT DES PLANTES. 2nd edition. 1969. By L. KOFLER Gauthier-Villars, Paris. 234 pp., 121 figs., subject index. Fr. 24 (paper) This is an unchanged reprinting of a book first published in 1963. Since the first edition escaped our attention, we briefly review the second one here. Written for students and horti- culturists its style is simple and direct, and the language non-technical. Nevertheless, it gives an admirable and many-sided account of the state of developmental biology of (mainly) higher plants about a decade ago (with the exception of embryogenesis). The more is it to be regret- ted that the author has not seen fit to update the text. To mention an example, is there any excuse not to mention, in an otherwise excellent text, the exciting recent work on single-cell culture, with its important genetic implications? The book is produced in good offset print and is illustrated with simple but highly successful line drawings. No literature references are given in the text, but there is a good bibliography of books and similar reference material. Unfortunately this also does not go beyond about 1960. 357 91 THE PHYSIOLOGY OF FLOWERING PLANTS: THEIR GROWTH AND DEVELOPMENT. 1970. By H. E. STREET and H. OPIK Edward Arnold, London. A series of student texts in contemporary biology. 272 pp., 95 figs., 15 tabs., combined author and subject index. ISBN 0 7131 2258 7, $ 11.75, £ 3.50 (cloth), ISBN 0 7131 2259 5, $ 5.95, £ 1.75 (paper) Contents: 1. Introduction; 2. Germination; 3. Energy economy; 4. Water relations; 5. Mineral nutrition; 6. Transport of metabolites; 7. Resistance to desiccation and frost; 8. Growth: progress and pattern; 9. Cell growth and differentiation; 10. Growth movements; 11. Morphogenesis and development This introductory text written for beginning students, in spite of what its title seems to suggest, really deals with whole plant physiology rather than with plant development as such. Almost half of the book (chs. 3 to 7) is devoted to fundamental physiological processes judged essential as a background to the discussion of growth and development proper. Only four chapters are allotted to developmental processes. We will restrict this review to chapters 8, 9, and 11. The emphasis here, as in the remainder of the book, is strongly physiological, and very little attention is devoted to developmental anatomy. The treatment is selective and condensed, and appears on the whole rather too difficult for beginning students. The attempt of the authors to make every chapter into a self- contained whole entails rather much repetition. Morphogenesis as such is discussed twice, once very briefly in ch. 8 in relation to growth, and again in ch. 11 under a much looser definition, including root, bud, and leaf initiation as well as flowering and embryo development, but excluding regeneration. To the present reviewer it seems a definite drawback that the plant hormones are not given a separate chapter. As it is, individual hormones are often mentioned rather haphazardly and before all their various functions have been coherently discussed. On the other hand, the sections in ch. 9 on cell division, cell expansion, and cell differentiation, though concise, are well worth reading. All chapters are concluded by useful lists of further readings and selected references to the primary literature. The numerous illustrations have been carefully chosen, but it is surprising that such basic matters as the cellular structure of the shoot apex and of the early embryo are not illustrated. 92 THE CONTROL OF GROWTH AND DIFFERENTIATION IN PLANTS. 1970. By P. F. WAREING and I. D. J. PHILLIPS Pergamon, Oxford. 313 pp., 124 figs., 6 tabs., subject index. SBN 08 015500 6, 40 s., $ 5.50 (flexic.) SBN 08 015501 4, 50 s., $ 7.00 (hard c.) Contents: 1. Growth in the higher plant; 2. Patterns of growth and differentiation; 3. General aspects of differentiation; 4. Plant growth hormones: their discovery and chemistry; 5. The role of hormones in shoot and root growth; 6. Other aspects of hormonal control; 7. Hormones and growth movements; 8. Sterile culture methods in studies of differentiation; 9. The physiology of flowering — I. photoperiodism; 10. The physiology of flowering - II. temperature and other factors; 11. Dormancy; 12. Senescence; 13. The control of develop- ment This book is intended as an introduction to growth and differentiation in higher plants for undergraduate students. The authors have attempted to bring together both the morphological and physiological approach within the same volume, and they constantly refer back to developmental and other interrelations in the plant as a whole. The book is sufficiently characterized by the table of contents above. Although there are no separate chapters on regeneration and callus work, these aspects are discussed in several chapters. In chapter 13 some more general aspects of development are discussed from the standpoint of molecular genetics; in this chapter work on bacteria and Acetabularia is sum- marized. There are no literature references in the text, but each chapter ends with a brief list of general and more advanced reading. The book is illustrated with good line drawings and photographs. It has a good index and the price is very reasonable. 358 Monographs 93 DES OVULES AUX GRAINES, aspects cytologiques de la reproduction sexuee chez les plantes superieures. 1970. By M. FAVRE-DUCHARTRE Masson, Paris. Collection de monographies de botanique et de biologie vegetale, no. 8. 146 pp., 80 figs., subject index. Fr. 78.— The author of this book is an authority on the sexual reproduction of plants with naked ovules. The book deals in strictly comparative manner with the morphological and cytological aspects of the ontogeny of the ovules, gametes, embryos, and seeds of prespermatophytes, gymnosperms, and angiosperms. Phylogenetic aspects are discussed along with the presentation of the data and in a brief conclusion at the end of the book. More than two thirds of the book (three chapters) are devoted to the ovule and its com- ponents, female and male gametogenesis, pollination, and fertilization. The two remaining chapters deal with embryogenesis (16 pp.) and seed development proper (17 pp.). The book is profusely illustrated with (partially highly schematized) drawings and photo- graphs. It is concluded by a glossary, a brief bibliography, and a combined taxonomic and subject index, of which the latter component hardly merits that name. The frequent use of vernacular plant names is a drawback for non-French readers. The book is inordinately expen- sive. 94 DE LA CELLULE A L'ORGANISME (Acrasiales, Myxomycetes, Myxobacteriales). 1970. By J. P. LARPENT Masson, Paris. Collection de monographies de botanique et de biologie vegetale, no. 7 140 pp., 81 figs., subject index. Fr. 68.— (paper) This monograph aims at a synthesis of our present-day knowledge regarding the biology, physiology, and morphogenesis of three taxonomically widely separate groups of organisms, whose life-cycles have a plasmodial or pseudoplasmodial stage in common. Such a synthesis can be quite valuable if written in a critical spirit on the basis of personal experience. Our opinion is based primarily on the part dealing with the Acrasiales, and from this at least it is quite evident that the present author has little or no first-hand knowledge of the subject. The presentation of the research data is often inaccurate or incomplete and their inter- pretation is equally often uncritical. Too much stress is sometimes placed on rather insignifi- cant details, whereas some very important recent work is hardly mentioned at all. Apart from this, many statements are not properly documented, while on the other hand several authors mentioned in the text do not appear in the bibliography. The book is in three parts, which deal with the three groups separately. Each part is concluded by a brief taxonomic section. A brief concluding chapter provides an integrative summary which points out the significance of the three groups for the study of morphogenesis and differentiation. The book is well illustrated and has a lengthy bibliography which, though incomplete, may be of use to those starting research on these organisms. However, as intimated above, the book should not be used without verification of its contents through the original literature. The price of the book is excessive. 95 LA PHYLLOTAXIE. 1969. By J.-E. LOISEAU Masson, Paris. Collection de monographies de botanique et de biologie vegetale, no. 4. 232 pp., 158 figs., combined subject and taxonomic index. Fr. 69 (paper) This monograph was written mainly for students and teachers by a leading investigator in the field. He is a representative of the influential "French school", which had one of its origins in the earlier works of L. Plantefol. The author's starting point is Plantefol's theory of multiple helices, and the book has a laudatory preface by this well-known French botanist. The book deals consecutively with the following subjects: fundamental concepts of phyllo- taxy; the recognition of leaf helices; the demonstration of helices in the apical meristem; phyllotactic variations and anomalies; the application of surgical techniques to phyllotaxis; 359 the effects of external factors; and finally, the effects of chemicals and ionizing radiations. The brief concluding chapter discusses theoretical subjects such as phyllotactic factors, nature of the centre of leaf generation, and regulative factors and organization. All chapters have extensive and up-to-date bibliographies in which non-French contributions are by no means absent. The book is well printed and profusely and beautifully illustrated. 96 ACETABULARIA AND CELL BIOLOGY. 1970. By S. PUISEUX-DAO Logos Press, London. 174 pp., 44 figs., 13 pis., subject index. ISBN 0 236 17738 9. $ 9.80, 70 s. Contents: 1. Introduction; 2. The biology of Acetabularia; 3. Structure and ultrastructure of Acetabularia; 4. Merotomy and grafting; 5. The biochemistry of Acetabularia; 6. The chloroplasts of Acetabularia and their functional periodicity; 7. Conclusions The number of laboratories using the unicellular giant marine alga Acetabularia to study widely divergent aspects of cell biology is rapidly increasing. Therefore this comprehensive monograph will be welcome to many. The author has worked on various aspects of the organism's biology (mainly on the structure and function of plastids) for many years, and is thoroughly familiar with the work of the leading German and Belgian schools. The book has a preface by Jean Brachet. Ch. 2, which covers morphology and morphogenesis, reproduction, and culturing methods, is of particular value to those who plan to start research on Acetabularia, because it reviews data which are otherwise difficult to find, including information on other species than those currently used for research purposes. The next three chapters contain much interesting infor- mation for the developmental biologist. Ch. 5 reviews biochemical and autoradiographic work on nucleo-cytoplasmic interactions and cytoplasmic autonomy, as well as the effects of che- mical inhibitors on DNA, RNA, and protein synthesis. It is concluded by a section on the regulation of protein synthesis in this organism. The book is illustrated with many graphs, good line drawings, and very instructive photo- graphic plates. The bibliography covers 17 pages and is complete and up to date. The subject index is unfortunately grossly inadequate. It is for instance amazing that there are no entries for morphogenesis or differentiation; other entries, such as those for cap, nucleus, RNA, should have been subdivided. An author index could have considerably increased the usefulness of the book as a source of references. 97 CELLULAR DIFFERENTIATION IN PLANTS AND OTHER ESSAYS. 1970. By C. W. WARDLAW Manchester University Press, Manchester, Barnes & Noble Inc., New York. 160 pp., 2 figs., combined author and subject index. SBN 7190 0407 1, 389 01222 X. 40 s., $ 6.50 Contents: 1. Introduction: on writing botanical essays; 2. Aspects of cellular differentiation in plants; 3. Reconciliations among apex lovers; 4. Enigmas of epigenesis; 5. Organization, disorganization and neo-organization Once more the prolific Emeritus Professor of Botany has turned out a volume of essays. In reviewing a book such as this the reviewer must take a personal attitude. And although many of his botanist colleagues may contend that there is not much new insight to be extracted from this book, the present reviewer, a zoologist, must confess that he has read it from cover to cover without halting. However, his enjoyment was perhaps more of a literary than of a scientific nature. The essays are exceedingly well written, with a wonderful sense of humour in places, but they will appeal more to the philosophically minded than to the practical biologist. One thing is a pity: that the author virtually ignores (intentionally?) the fairly numerous recent attempts to clarify biological organization by means of models or computer simulation (one important exception being J. Bonner's model of 1965). Perhaps he feels that their signi- ficance is as yet too ephemeral to be discussed in an essay. The book is attractively produced and has a good index. 360 Methods (see also 35) Treatises 98 METHODS IN MAMMALIAN EMBRYOLOGY. 1971. Edited by J. C. DANIEL, Jr. Freeman, San Francisco. 550 pp., 187 figs., 34 tabs., subject index. ISBN 0 7167 0819 1. £ 10.70, $ 22.50 The methods for observing and experimenting on mammalian embryos develop rapidly, and are often published incompletely and in widely differing media. Therefore this book will be most welcome to all those who work or are preparing to work in this field, including labora- tory animal specialists and students. The book contains 34 chapters written by 43 carefully chosen specialists. The treatment is usually much more detailed than is possible in ordinary publications. Moreover the chapter bibliographies give all the important primary literature, including some of the most recent references. The applications of each method to those species for which it is particularly well suited are described, so that all laboratory mammals and several domestic mammals are represented. About two thirds of the book are devoted to early stages of development and pregnancy (up to and including blastocyst implantation), and to the procurement of egg cells and their fertilization. In this area the book is very comprehensive. The treatment of the placenta, the fetus, and the fetal membranes is much less complete. Organ culture is described only for the mammary gland, the embryonic ovary and oviduct, and the postnatal testis. The following methodological areas, among others, are covered: experimental embryology, egg transfer, embryo culture, in vivo observation techniques, electron microscopy, biochemistry, and physiology. The book is extremely well produced and is illustrated with numerous beautiful photographs and excellent drawings. Textbooks 99 EMBRYOLOGISCHE UNTERSUCHUNGSMETHODEN FDR LABORATORIUMSSAUGETIERE. 1970. By G. H. M. GOTTSCHEWSKI and W. ZIMMERMANN Schaper, Hannover. 144 pp., 33 figs., 11 tabs., author index. ISBN 3 7944 0001 1. DM 45 — (paper) This little book can be described as a compendium for those who work experimentally with laboratory mammals, particularly the rabbit. It contains a wealth of useful data, but at the same time is so concise that the reader is frequently referred to the original literature for more details. The first 20 pages present a brief survey of the main phases of mammalian development. The next 20 pages give the essentials of the breeding, care and genetical manipulation of rabbits. Next comes a section of about 40 pages dealing with all the current investigative methods of a general nature, such as artificial insemination, narcosis, surgical techniques, the procurement of developmental stages, ovum transplantation, and a variety of preparative, histological, and biochemical (micro)methods suitable for application to embryonic material. A ten-page section on in vitro methods is followed by a section of 25 pages on special inves- tigative techniques to be applied to specific stages, as well as immunological techniques. The last 10 pages are devoted to problems of developmental genetics. This section is almost entirely theoretical in nature and largely reflects the first author's viewpoints. The book is well printed and well illustrated. It has a bibliography of 400 titles, followed by an author index and a list of books. There is no subject index, but the detailed table of contents makes up for this lack. The price of the book is excessive. 100 METHODS IN EXPERIMENTAL EMBRYOLOGY OF THE MOUSE. 1970. By K. A. RAFFERTY, Jr. Johns Hopkins Press, Baltimore. 105 pp., 35 figs., 1 tab., subject index. SBN 8018 1129 5. $ 8.50, 81 s. This book is in the nature of a compendium and was written primarily with a view to facilitating the organization of courses for advanced undergraduate and graduate students, but 361 it may also be of much help to mature workers, because the subject presents inherent technical difficulties. The book is in two parts, the first of which describes instruments, equipment, and materials, including the maintenance and breeding of mice. (The book is tailored to the characteristics of the Swiss albino line.) Part two then proceeds to describe a large variety of laboratory exercises (18 in all). Among these are maturation of oocytes in vitro, recovery of ova, ovum culture, ovum transfer and transplantation, fusion of ova, fertilization and implantation in vitro, and the preparation of staged ova. Then follow six appendixes describing media and procedures. One of the appen- dixes is a "normal table" of mouse development, which distinguishes 24 carefully defined and illustrated stages. Up to the blastula stage (8) age is given in hours after estimated ovulation time; from then on the successive stages are separated by periods of about one day. The book is illustrated with good line drawings and a few photographs. It is very attractively produced, and contains a listing of useful reference sources and a selected bibliography of over 100 titles. (A minor point that struck the reviewer as odd is the use of the word "deciduoma" for uterine swelling; this word has the accepted meaning of a neoplasm arising after birth from remnants of the decidua.) History, Biographies, etc. Monographs 101 KARL ERNST VON BAER 1792-1876, sein Leben und sein Werk, translated from the Russian by H. von Knorre. 1968. By B. E. RAIKOV J. A. Barth, Leipzig. Acta Historica Leopoldina No. 5. 516 pp., 20 figs. M. 68.— (paper) This book is the German translation of a book published in Russian in 1961. The author, a well-known historian of biology, was 81 when the Russian edition appeared, and did not live to see the German translation in print. The scholarly work is the first complete biography of von Baer, one of the geniuses of the nineteenth century and the father of modern embryology. It is not possible to review the book extensively here. The reader is referred to the long, laudatory review by V. Hamburger in Quarterly Review of Biology 45, no. 2, 1970. The book is exceedingly well written and well translated. The translator has contributed, among other things, a lengthy introduction, many annotations to the main text, a complete list of references cited in the original, and an annotated index of names cited in the text. The book is well printed and has good illustrations, mostly portraits and facsimiles. It is a pity that it could not be provided with a hard cover. The book contains an annotated bibliography of von Baer's works, but no general index. 362 ERRATA p. 36 Before COGNETTI, insert: COETZER, A. M.Sc. — Univ. of Zululand, Private Bag, Kwa-Dlangezwa, EM- PANGENI, Natal, S. Africa a Ontogenesis of the chondrocranium, especially the homologies of the elements of the viscerocranium. Barbus holubi (CyprinkLae, Teteostei) p. 66 Delete; the entry of 4 lines beginning with GOETZER p. 122 METZ, C. B. zip code should read: 33124 363 _ ~ = =