PROCEEDINGS loiml ^oricti) of firtoria. VOL. XXV. (Niow Series). PARTS I. AND IT. Edileii under the Aiil/iority of the Council. ISSUIil) AUGUST, 1912, and MARCH, 1913. (^('iintdiiiiitg t'apers rend before the Society during:; 1912). I'lIK tliriKMtS OK line. ISKVKmL I'AfKKS AKK MKVKKAI.I.V II KDHONSI KLK KOK IHK KOI'NDNKMH OK TIIK OPINIONS OIVKS AND KOR TIIK \((I'HA( V OK IIIK STA'I'KMKNTS MADK TIIKKKIN. MELBOURNE : FORD & SON, I'KINTF.RS, DRUMMOND STKKKT, CARLToN. 1913. CONTENTS OF VOLUME XXV, Art. 1. — Preliminary Ni)t.e.s on the Moncliiqiiite Dykess of the K^'inlij^o (^oMfiekl. By V. L. S'nr.LWKLr., H.S,-. (Plate I.) ... 1 II. — The IntrorluetiDii iuid Sprcinl of the Cattle Tick (Boophilus aunulatus, var. iiiieroptu.s), and of the Associated Di.sease 'I'ick Fever (HaViesiasis) in Australia. By J. A. Grir>BUTH, D.V.Se., il.R.C.V.S., F.Pt.S.E. ... ... ... ... 15 III. — Furtluu' Observations on Oncliocerea gibsoni, the Cau.se of Worm-nodules in Cattle, By J. A. Gilkuth, D.V.Sc, M.E..C.V.S., &c., and Georoina Swkki-, D.Sc. ... 2','> IV. — Australian and Tasmanian Coleojjtera Inhabiting or BesoTtiiig to the Nests of Ants, Bees and Termites. (Suppleinent.) By' Akthub M. Lka. (Plate II.) ... ... ... ;^1 V. — On a new Holothurian of the Genus Taeniogyrus found in Port Phillip Bay. By E. C. Joshua. (Plates III. and IV.) ... 79 VI. — The Occurrence and Development of Cervical Eibs in Man and some of the Mammals that have abandoned Quadrupedal Progression. By Walter Stapley, M.D., D.V.Sc, M.R.C.V.S. ... ... ... ... ... ... 82 VII. — Contributions to the Flora of Austi'alia. No. IJ). By Alfred J. EwART. D.Sc, Ph.D., F.li.S., and Bertha Kees. (Plates V. and VI.) .. .. ... ... ... .. lOo VIII. — 'J'he Ascent and Descent of Water in Trees. By Alfred J. Ev^^ART, D.Sc, Ph.D., F.L.S. (Plate VII.) ... ... 11", IX. — Description of Two New Ischnoeliitons from Western Port, Victoria. By A. F. Basset Hull. (Plate VIII.) .. 120 X. — An Investigation of Fifty-two Tasmanian Crania by Klaatsch's Craniotrigonometrical Methods. By L. W. G. Buchner 122 XI. — A Study of the Prognathism of the Tasmanian .Aboriginal. By li. W. G. •BiJCHNER ... ... ... ... 1.3.5 XII.— The Psychrometric Formula. By G. Smeal, B.Sc .. 151 XIII. — On some New Species of Victorian Marine MoUusca By .7. H. Gatliff and C. J. Gabriel. (Plate IX.) ... ... 167 XIV. — Additions to and Alterations in the Catalogue of Victorian Marine MoUusca. By .1. H. (iATf.iFF and C. .1. Gabiuel liiit XV. — Notes on some " Struigybiirk " Kucalyijts. By Kt>Y.sTON Dkew. Heber Green ;ind P. R. H. 8t. .John. (Plates X. and XI.j ... ... ... ... .. .. 176 XVI.— New or Little-known Victorian Fossils in the National Museum. (Part XV.— Some Tertiary Clasteropoda.) By Frederick Chapmax, A.L.S., etc. (Plates XII. and XIII. I ... 186 't A L Art. XVII. — On the Cross Inoculation of Root Tubercle Bacteria upon the Native and the Cultivated Lejjiiminosae. By A. J. KwART, D.Sc, Ph.D., F.L.S., and Norman Thomson, B.Ag.Sc. (Plate XIV' .) .. .. ... ... H>3 XVIII. — Paralysis in Hor.ses and in Cows due to the Ingestion of Fodder. By J. A. (^ilruth. D.V.Sc. M.C.R.V.S., P.R.S.E. ... ... ... ... ... . 201 XIX. — The Anatomy of 'I'wo Australian Fiand Snails, Paryphanta atramentaria, Shuttleworth, aud P. oonipacta, Cox and Hedley. By Olive B. Davies, M.Sc. (Plates XV. to XVII.) .. ... ... ... ... ... 221 XX. — The Correlation of Size of Head and Intelligence as Estimated from the Cnliic Capacity of Brain of 855 Melbourne Criminals. By Richard J. A. Berry, M.D., F.R.S.E., and L. W. G. BiicHNER ... ... ... 229 XXI. — The Correlation of Size of Head iiml Intelligence as E.stimated from the Cubic Capacity of Brain of 33 Melbourne Criminals Hanged for Murder. By Richard J. A. Berry, .M.L>., F.R.S E., au.l L. W. (i. Buchnkr ... 254 XXII. — On the Country between Melbourue and the Dandenong Creek. By T. S. Hart, M.A., B.C.E., F.G.S. 2(is XXIII. — The Syrinx of the Connnon Fowl, its Strticture and Devel- opment. Hy A. O. V. Tymms. (Plates XVIII. and XXIV.) ... ... .. ... ... 28r> XXIV^. The Viscosity of Cream. By Frances K. M. Dumaresq, M.A., B.Sc. ... ... ... ... ... 307 XXV. — General ami Mining Geology of the Diamond Creek Area By Norman R. Junner, B.Sc (Plates XXV. and XXVI.) ... ... ... ... ... 323 XXVI.— A New Variety of Volute from Western A u.stralia. By Agnes F. Ken yon ... ... ... 354 XXVII. — Further Descriptions of the Terti;i,ry Polyzoa of Victoiia, PartXlI. By C. M. Mapi.estoni.; ( Plate XX VII.)... 355 XXVIII.— New or little-known Polyzoa. By C. M. Mai'lestone. (Plate XXVIII.) . ... .. ... 357 XXIX. — On a New Silurian Bivalve from the Lilydale Quarries, Lucina (Prolucina) mitchelli. By G. B. Pritchard, D.Sc, F.G.S. (Plate XXIX.) ... ... ... 3(53 Annual Report and Bai,an(k Shkkt kok 1!H2 ... ... 305 Oeeice-Bkarkrs ... ... ... ... ... ... 3(iit committkks ... ... ... ... ... .. •■ -'70 List ok Mkmhkrs ... ... ... ... ... ... 371 Index ... ... ... ... ... ... . . 37!' [Proc. Rot. Soc. Victoria, 25 (N.S.), Ft. I., 1912.] A III'. \.— Prelim imt/ry Notes on the Monchiquite Dykes of the Bendigo Goldjield. By F. L. STILLWELL, B.8c. (Carolina Kay Scholar and Government Research Scholar, Melbourne University). (With Plate I.). [Read 14th December, 1011]. Introduction. Tlie following: notes are the result of an unfinished study of the dyke rocks occurring at Bendigo. References to the rocks are not very numerous among the literature of this gold field, which is mostly contained in Professor Gregory's Bibliography of the Economic Geology of Victoria (1). They are only occasionally mentioned throughout the publications of the Victorian Mines Dej^artment, excejDt in Mr. Dunn's monograph (2) where they are treated at some considerable length, and in Dr. Howitt's petrographical report (3). Elsewhere they have been referred to l)y Mugge{4) in a review of Dr. Howitt's paper, and by T. A. Rickard in his descriptive papers on the Bendigo field published in the Transactions of the American Institute of Engineers. Kickard (5) has given special treatment to the dykes in his paper on the Origin of the Gold-bearing Quartz of the Bendigo Reefs. Australia. In this paper he gives a number of sketchies illustrating the relations ot the dykes to the strata. One of these, which is incorrect and deservedly critici^^ed by Argall (6) as being incon- sistent with Rickard's stated facts, has recently been copied into Malcolm Maclaren's book on Gold (6) as figure 127. The papers by Argall resulted in the discussion on Rickard's work. Very little work has been done on these dykes within the last sixteen years, and at the beginning of the present year it was thought that a study of these rocks and their relation to the distribution of gold could be profitably commenced. General Relations. The dykes, which are locally always termed " lavas,"' have been injected into the folded ordovician sediments of the Bendigo field. Mr. Dunn (2) has pointed out that the dykes are found along the course of every anticline, and not in the synclines, and that they are not con- 2 2 F. L. StllhueU: tinuous along the whole length of the anticlinal axes at -the surface. The course of a lava upward is irregular, and as it rises through the different levels of a mine it wanders at times both east and west of the actual " centre country," but is seldom far away. So regularly do the lavas follow the centre country that they have been of gi-eat service to the Geological Survey in the mapping of these anticlinal axes, and Mr. H. S. Whitelaw (7) has tabulated the surface characteristics of the lavas which are always decomposed and recognised by (1) the trench or gutter caused by their weathering more easily than the walls of the adjoining country rock, (2) their more stable decomposition product, the magnesium carbonate, which at the surfa.ce occurs in thin nodules or veins, and (3) the peculiar opaline aspect often induced in the quartz of a reef with which they have come in contact. Observed in one anticline they are frequently found to branch into two or more lava streams which may or may not junction again at higher levels. At the New CTaristmas shaft, situated on the Christmas anticlinal axis at Kangaroo Flat, six lavas are met in one small crosscut of 94 feet, revealing the existence of quite a network of streams. In thickness they average from 9 inches to 12. Th.ree-inch seams are not uncommon, and they range down to thin threads which may die right out. Mr. Dunn (2) records a 5-foot lava in the Great Britain Mine. The south shaft of the New Christmas Mine contains a lava 6 feet thick. A 1 2-foot lava was supposed to exist in the Bird's Keef Mine, Kangaroo Flat, but has been found to be in part sandstone, and is only 5 or 6 feet thick. The trend of these dykes, north and south, is remarkably persistent, and they form a parallel system of the " plateau region " type. The parallelism is made particularly noticeable by its coincidence with the direction of strike of the rocks. With this parallelism we do expect to meet them in anticlines rather than synclines, for anticlines are always in a state of relative tension to the synclines, and, therefore, suffer fracturing in the relief of orustal stresses in prefei-ence to the synclines. The coincidence of the strike of the rocks and the dykes means that the same kind of crustal stresses have been involved in the folding of the rocks, and in the injection of the igneous material. The main earth movements resulting in the folding have resulted from pressure fronu easterly and westerly directions. The rock stresses which were relieved l)y the injection of the dyke material, and which no doul)t result in rock fracturing, in part, have developed at a later date from the same direction. I think this instance forms a good Victorian example of Harker's principle of the intimate connection between igneous action and crust movements (8), especially if we agree with T. C. Chamberlain that earth movements are inheritances, and likely to lie continued' in the same manner at different jieriods of the earth's history. Notes on Monchiquite Dykes. 3 The cross-courses on the tield whicli liave displaced the anticlines and the slides have resulted from niovemients distinctly minor to the main ones, and Mr. Dunn has spoken of dyke material filling the cross fractures, but I have not been able to verify this. In such a parallel system of dykes as this, which has originated from the same magma, we might expect the dykes to communicate across the anticlines at different levels in the crust of the earth. The only pos- sible instance of this that came under my notice was in the Koch's Pioneer Mine, Long Gully (Garden Gully line), where a lava comes from the west at the 120!)-f(iot level, and continues through the upper levels to the surface, l>ut is not found in the lower levels. Tlie metaniorphism of the intruded series by the dykes is extremely slight. Apart from the peculiar appearance sometimes seen in the quartz reefs, noticed above by Mr. Whitelaw, the only evidence I can record is the presence of sillinianite crystals in quartz associated with a lava obtained from the Ironbark Mine. The penetration of these thin parallel sheets, persistent for miles in length, through a tliick series of folded sedimentary rocks, is a fact which is impressive. It has astonished previous observers, and caused Rickai'd (5) to propound a fanciful theory of dyke intrusion based on an unproved statement that the mobility of the lava is due to superheated steam and not to intense heat. Such was rightly attacked byArgall(6) Mr. Dunn (2) is inclined to imagine the presence of explosive forces. There is little to be gained at present by speculation. The mechanics of dyke intrusion is a difficult subject and one little known. It can therefore be well left to a later date. The question, too, has been raised as to whether these dykes were channels of supply for lava flows at the surface. Rickard was quite sure that they were, because he erroneously connected the monchiquites with the newer basalt, but Mr. Dunn thought probably not. It is not uncommon to find a dyke stream fading out in the upper levels, and an instance was recently noticed in the Koch's Pioneer Mine, where the top of the dyke was largely a mass of sulphur. The presence of sulphur now implies the presence originally of svdphurous gases which were vmable to escape through a vent. In this connection it may be remem- bered that large black biotite crystals are to be found in the lava in places like Jones's .shaft, New Chum line (2), and the Victoria Consols Mine. Small biotites are sometimes seen in the sections of rocks from the other mines. The formation of biotite as a mineral is now known to require either the presence of a '" mineraliser" like water vapour, or pressure. Mineralisers would have escaped and the pressure would have been established with the existing surface at the time of intrusion. This helps us to think that these dykes were independent and self-con- tained intrusive bodies. Yet on the other hand the nearest petrogra- 4 F. L. Stilhvell: phical allies of these rooks in Victoria, e.sx., the Kino^'s Quarry rnck at Macedon (11), have resulted in very small flows, and any small flow at Bendigo could well have been denuded away. Petrology. ( lieiniral Chnrarferx. A rock sample from the Central Red, White and Blue Mine, Sheeps- head line, was analysed. This samiple was taken from the thicker of the two lavas which occur within a, few feet of each other in a small crosscut at the 318-foot level. This rock was chosen because it was found to be very fresh. The analysis made is in general similar to that made by Mr. Frank Stone, quoted in Dr. Hewitt's paper (3), of a sample of the New Chum lava in Lansell's 180 Mine. I. II. SiO, 40.92 39.32 AloA - 11.34 17.53 TiOs, - 6.57 — Fe.O^ - .54 3.07 FeO 12.96 9.12 CaO 9.28 10.38 MgO - 7.78 8.00 K.3O 1.94 3.04 Na,0 - 3.27 2.44 MnO - .13 — P.O., - .51 — CO., 2.82 Moistui'e 2.20 H.,0- - H,0+ - .64 1.77 [- 5.10 100.47 99.20 i. Dyke, Central Red, White and IMue Mine, Sheepshead line. Analyst, F. Stillwell. IT. Dyke, Lan-sell's 180 Mine, New Chum line. Analyst, F. Stone The Sheepshead line is immediately east of the New Chum line, and these analyses tend to emphasise the minor variations that can he noted microscopically in various samples of the Bendigo monchicpiites. The Sheepshead lava is relatively more acid, though at the same time it is a fresher rock. The high titanium content tinds expression in the highly titaniferous augite, and the abundance of ilmenite. Tlie low silica percentage, moderately low alumina, moderately high alkalies with soda predominating over potash, high lime, ferrous irtm and magnesia are the chemical features of the monchicpiito group of rocks. Notes on Monvliiqiiile Dijkes. 5 Vi'tnxjnt ph icdl ( 'Jiaracters. Central Red. White and Blue Hork. :n8-f(K>t level. (Plate T, Fig. 1). This rock in the hand s))ecinien is dense, bluish-black, and very hard. Porphyritic crystals of olivine can be seen, and also occasional white vesicles tilled with calcite. Microscopically, it is extremely dense. Occasional very large olivine crystals are found which are more or less completely serpentinised. Smaller olivine plienocrysts are common, and are for the most part relatively clear and unaltered. These fresh olivines from the 318-foot level are remarkable when one considers that the olivine usually seen in the Bendigo rock sections is very much altered, even at the deepest levels of the Victoria Quartz Mine, 4(514 feet. Augite is perhaps the most abundant mineral. It is a ])urii]e, titaiii- ferous variety, and faintly pleochroic. A brown prismatic hornblende is present in a- much smaller amount than augite. It is strongly pleo- chroic, and is distinguished from biotite mainly by its oblique extinc- tion. The angle between the prism faces can only sometimes be seen. Ilmenite is extremely abundant in small crystals distributed evenly throughout the rock. Microlites of ilmenite are also abundant. Tliin, colourless rods of apatite are discernible in the ground mass. The ground mass when unaltered is clear, colourless and isotropic. It-5 X'efractive index is higher than that of xylol (1.4912) and not much different from that of a sample of cedar oil (1.5090'). The ground uuiss is therefore a glassy residuum, and not analcite. Not only does the material serve as a general ground mass for the whole of the rock, but it appears as well here and there in irregularly-shaped areas which, tontaining an excess of brown hornblende, form light-coloured patches ill the rock. These are obviously the acid residuum remaining after the crystallisation of the bulk of the magma. In part the ground uuiss is found to be not absolutely isotropic and to show polarisation colours up to iron grey and grey white. This condition is most evident in some of the segregated patches when in addition a curious perthitic intergrowth with ilmenite is evident. It is here found to pass out into occasional basic felspar laths, and the assumption is that the remainder of the crystallised ground mass is felspar. Vesicles in this rock are tilled mostly with a carbonate, probably calcite. The carbonate could well be dolomite, especially as rhombs of til is carbonate have been seen in sections from the rocks from other mines. Occasionally rods of a fibrous carbonate, arragonite or fibrous calcite, can be seen under the high power lining the edge of some of the vesicles. Rods of a fibrous zeolite, probably natrolite, are present. Analcite, in snudl isotropic cubes, has also been seen. Chalcedonic silica is present as a secondary mineral, and also crystallised silica as 6 F. L. Stilliuell: quartz. A vesicle tilled with quartz is rimmed with a network of green prismatic crystals showing high polarisation colours and oblique extinc- tion. Pleochroism, if any, is extremely faint, and the mineral looks like epidote, but has not got the extinction angle of ©pidote. These characters, combined wdth its high basicity and chemical composition, and its mode of occurrence as a dyke, are sufficient to place the rock among the monchiquites. The felspar is too insigniti- cant in quantity to displace it from this monchiquite group. Dr. Howitt (3) has described a dyke rock apparently similar to the above, from Lansell's 180 Mine, on the Kew Chum line, and named it limburgite. Miigge (3) in a review of Dr. Howitt's paper, suggested that the name monchiquite should be used to agree with the mode of occurrence, and the name limburgite- should be reserved for very basic lava flo'ws. This is the proper interpretation of the terms, and there- fore we may call our type rock monchiquite. An examination of a number of sections of lavas from other mines reveals the same general chariicteristics of the monchiquite group, with minor variations. A complete comparison is not possible, because the lavas ai'e so frequently decomposed. Tliis decomposition is in no way proportional to the depth below the surface, as show^n by the Central Red, White and Blue rock. Further, the decomposition, once started, is surprisingly rapid. A lava, exposed only for six months at 2600 feet in the Koch's Pioneer was found to be crumbling in part, though quite dry. In the Pearl Mine a lava exposed some thirty years along the roof of a disused drive at 130 feet, has rotted sufficiently to form a linear heap of mullock along the floor of the drive. In spite of this, fresh rocks, suitable for microscbiDical examination, were obtained from a number of places, and the following notes may be made: — Specimen No. 14, Lansell's 180 Mine, No. 2. The sample was obtained from the 400-foot level, about 30 feet south of the shaft. This mine is situated on the Sheepshead line, and adjoins the Central Red, White and Blue Mine. Three l)ranches of the lava are present in this mine, while there are only two in the other. In this rock olivine has been more al)unda.nt, ))ut is now completely serpentinised. Augite is present in two generations. The large augites are nearly colourless and sometimes zoned, sometimes with houi-gla^s structure. The small augites form the san)c kind of network as in the Ci'iitral Hed. Wliltc and Blue rock. Tlie hornblende is present in al)0ut the same ]n-opor- tinn, but the ihnenite is relatively much less abundant. The colourless ground mass is in small piopoi-liou, l)ut a])])ears in the same residuum as patches, crowded with hornblende and ihnenite microlites. Vesicles are more developed, and this is always noticeable with the further hous siliia, rimmed with calcite, and the alteration is s(jmetimes repeated. Notes on Monckiqu'de Dykes. 7 Specimen No. 9, 3827-feet, Victoria Quartz Mine. The complete alteration of the olivine in this rock is very noticeable, and the ground mass is perfectly isotropic. This New Chum dyke was found to be very decomposed down to 1300 feet iu the Pearl Mine, and very hard ap;ain in the Catherine Mine, Eaglehawk. Here the rock is similar to that in the Victoria Quartz Mine, but the vesicles are far more abundant, and many of them contain rims of a coarse fibrous carbon- ate, probably calcite. Specimen No. 34, 1868-feet, Johnson'.s Reef Mine, No. I. This is the Garden Gully lava, and here it is very dense, and the colourless ground mass is scarcely perceptible. Ihnenite is scarce, vesicles are numerous, and many are curiously lined with pyrite. The same dyke at the Clarence United Mine contains a.n average amount of ilmenite. Natrolite is well developed in the vesicles of this rock. The natrolite is prismatic, positive in sign, with straight extinction and low polarisation colours At the Koch's Pioneer Mine, the Garden Gully lava is not so fresh, but a section of a 2-foot dyke shows it to be relatively coarse. Olivine is completely serpen tinised. Large augites are present, some of which have a core of inclusions. Ilmenite and hornblende are present in average proportions. Small biotites are noticeable. The ground mass is in general not isotropic, and consists mainly of a low polarising mineral. This is probably original felspar, but may be secondary, and developed during the alteration of the rock. The rocks from the places above mentioned come within the mon- chiquite group, from which the following deviate : — Specimen No. 7, Goldfield's Mine, No. I. The GoldtieM's No. 1. is an abandoned shaft at the southern end of the Nell Gwynne line of reef. The specimen was obtained from the dump, and was a piece of a thick lava met in sinking the shaft at the depth of about eighty feet. The first glance under the microscope shows the rock to be generally Siimilar to the true nionchiquites. Olivine phenocrysts are partly fresh, and only jnirtly serpentinised. There is only one generation of augite. The ilmenite is very abundant and hornblende is present. Blotite is present in i-elatively large crystals. The feature of the rock is that the ground nuxss is perfectly clear and colourless, and not isotropic. A large vesicle is present in the slide, and contains a. little biotite and a great deal of calcite, and these are mixed with a mineral which is apparently identical with the true ground mass of the rock. Here it is found to possess cleavage, and an extinction of three or four degrees. It is untwinned and the polarisation colours are never above gi'eyish- white. It is biaxial and positive, and has a refractive index less than that of oil of cloves (1.5333). Its appearance is that of a felspar, and its refractive index is that of orthoclase and anorthoclase. In addition it has in some places an appearance suggestive of \pry fine lamellar 8 F. L. ^StiUiuell: twinning, and one is therefore inclined to call it anorthoclase. It is probable that the chemical composition of the rock is not far different from the Central Red, White and Blue type, where the soda is in excess of the potash, and this assists the determination as anorthoclase. Tlie presence of this anorthoclase (?) base distinguishes the rock from the typical monchiquites. Specimen No. 5, Forbets Carshalton Mine. The specimen was obtained from the dump heap without any knowledge of its depth in the mine. Tlie locality is more than one mile north of the Goldfields No. 1 shaft. Like the Goldfields' rock this rock is generally similar to the monchiquites. Olivine is mostly serpentinised, and the augite is present in two generations. Horn- blende and ilmenite are perhaps in smaller proportion than in the typical monchiquite. These minerals are all set in a ground mass of felspar laths. The felspar shows lamellar twinning, and the lamellae give extinction angles up to 35 degrees, which determines it as labra- dorite. This felspar is present in much the same proportion as the isotropic material in the type monchiquite. In addition it appears on the segregation patches similar to the light coloured, acid residual areas in the monchiquite. Clearly this felspar has been the last mineral to crystallise during the consolidation of the magma, and in this respect it is certainly analogous to the isotropic material of the mon- chiquite. The felspar of this rock and of the Goldtields No. 1 indicates that they belong to the camptoiiitic variety of lamprophyre. Tbe Forbes Carshalton specimen is more of a true cami)tonite than the Goldtields No. 1 sample, with its alkali felspar. It seems to be very similar to a rock found at Balwyn, which occurred as a small flow. This has been described by Messrs. Chapman and Thiele (10) as a limhurgite. The examination suggests that the labradorite and anorthoclase are but further stages in the crystallisatiaon of the monchiquite magma. The distribution of each as a base for the other minerals is very similar, and their relative proportions are much the same. This, combined with the minute amount of felspar in the monchiquite itself, suggests the passage from, the true monchiquite through the Gold- fields No. I. type to the Forbes Carshalton type. The specific gravities of the two last-named are greater than the specific gravity of the Central Red, White and Blue type. This is in accordance with the suggestion Ijecausc the specific gravity of a glass is always less than that of the mineral which would result fi-om it. Specimen No. 38. One Tree Hill Mine. (Plate 1., Fig. 2). This speci- men was collected l»y Mr. Whitelaw, and was obtained from a now inaccessible part of tlie One Tree Hill Mine, two miles to the S.S.W. of Bendiy;o. The One Tree Hill anticlinal axis is some distance to the Notes on MoncJilqihlte Dijkes. 9 east of the main lines of reef. In the hand specimen it is a hard, greenish rock with shiny tlakes of mica. Microscopically, the rock is much altered and of porphyritic character. The outstanding pheno- crysts are those of an originally well crystallised mineral, which is now completely altered to brownish unrecognisable material, though here and there small patches have only gone as far as chlorite and calcite. Some of these well bounded sections are eight-sided, and indicate original augite. Others are six-sided, and by their prism angle indicate original hornblende. No unaltered augite or hornblende is present. Plagioclase felspar occurs sparingly as crystals which are not much altered. Phenocrysits of biotite with ragged edges are common, with pleochroism varying from a deep brown to a very pale straw colour. It has undergone considerable alteration to chlorite. Some crystals of biotite have undergone internal bleaching, the iron having been leached from the centre, and concentrated in a ring which now gives a dark border to an interior of chlorite and calcite. Quartz is abundant, and the chlorite and calcite extremely so. Ilmenite occurs scattered in very small crystals, and apatite is also accessory in fine needles. The rock is a typical mica, lamprophyre, and, if placed in Rosen- busch's classification, it would be termed kersantite. The specific gravities of these rocks were determined from small fragments, and found to be : — Central Red, White and Blue sample - - - 2.95 Forbes Carshalton sample ----- 2.99 Goldfields No. I. sample ----- 3.05 One Tree Hill sample - - - - - - 2.78 Age of the Bendigo Dykes. The dykes include ordovician sediments, and are certainly post-ordo- vician. South of the Big Hill tunnel, a monchiquite dyke cuts a granitic dyke. The granitic dyke is probably associated with the Harcourt granite, and the monchiquites are probably post-devonian. At Kan- garoo Flat a dyke is found cutting through a glacial conglomerate. If this conglomerate is part of the derrinal series, and of permo-car- boniferous age, the dykes must be later than permo-carboniferous. Further than this the stratigraphy of the Bendigo district cannot help one, for no later geological period has left its record except in .some tertiary and recent river gravels. No structural evidence is forthcoming, though there is a possibility that the relations of the dykes to the series of earth movements that have affected the Bendigo field may be found and co-ordinated in time with general movements throughout Victoria. 10 F. L. Stilhvell: For further help we must therefore depend on the less convincing petrological evidences. Kickard (5) looked- upon the nionchiquites as part of the newer basalts. The monchiquites, however, are quite different from the newer basalt type, and are even more basic than the older basalt series. The nearest petroo-raphical allies are found in some limited ultra-basic lava flows in the Macedon district, e.i;'., King's (^)uarry type. Professor Skeats and Mr. Summers (11) have placed these flows near the top of Macedon series of tertiary igneous rocks. They have suggested the existence of a sub-alkaline magma beneath the whnle of Victoria in tertiary times, and progressive differentiation from it has produced first the alkaline rocks and later the basic rocks. If this is correct and the King's Quarry type is a differentiation product from this magma, then the monchiquite dykes may well be its dift'erentiation products also, because the monchiquite itself is a sub-alkaline rock. This analogy suggests that the monchiquites are of mid-kainozoic age. Monchiquites are known to occur in a similar manner in other parts of Victoria. Correlative evidence may therefore be produced in the future, but till then the balance of evidence, such as it is, leans towards the con- clusion that these dykes were intruded in mid-kainozoic times. Relation of the " Lavas" to the Gold Distribution. Only a study over an extended period of time can throw much light on this question. Concrete cases, nowadays, of lavas in contact with rich gold-bearing stone are rare, and many such instances must be found and ejcamined before the problem can be thoroughly discussed. Instances were probably not so rare during the earlier history of the field when all the development work was in the shallower levels, and it is more often the miner of the old days who asserts that the lava exerts an influence on the gold. Tliere can be no doubt that such belief would be assisted by the presence of the lavas in centre country, and the lavas have been followed as guides to the unrecognised centre country. Such is obvious in mines like the Pearl, where drives in each successive level have been started on the lava. My contribution to this question is the record of observations in the Ironbark Mine, Long Gully. Here, in sinking a winze in the centre country of the Sheepshead line from the end of a crosscut about 700 feet long at the 4:80-foot level, a lava was found to split into two branches, each about ten inches wide. Tlie branches opened to about four feet, and tlien continued more or less parallel. Tlie lavas are the dark, dense characteristic monchiquite, with streaks and segregations of olivine altered to serpentine. The enclosed space was tilled with quartz. The winze was down twenty-seven feet at the time of my first Notes on J]Ioi}chiquite Dykes. 11 visit, and the quartz across its full width showed galena, blende, and pyrite with just occasional colours of gold. Scattered through the milk-white quartz were dark fragments of the country rock, angular in shape, of all sizes, and with definite, unabsorbed boundaries found in fissure filled reefs. Between this reef and the dykes there is thoroughly brecciated material, consisting of pieces of slate, reef quartz and lava. Some of the quartz has lost the milky appearance and become vitreous, a.nd there are greenish patches near the lava pieces coloui-ed l)y the serpentinous material. This material is typical breccia, mineralised, and very rich in gold. Pieces broken from right in the side of both lavas showed gold. Mr. Rogers, the manager, gave me a piece of the eastern of the two branches, showing a coarse shot of gold quite obviously detached from any quartz whatever. Examination with a pocket lens showed that the rock immediately around the gold was different from the main mass of monchiquite. A thin slice of this rock, cut through visible gold a little distance from the one coarse shot, was prepared, and revealed the fact that the rock actually containing the gold itself was a piece of breccia set in tlie dyke material. The bulk of the gold is mixed with dark, opaque material, which looks decidedly carbonaceous. This dark patch also contains small pieces of a white micaceous mineral, calcite and slaty material. One fragment of gold is detached from the opaque material and set in a lump of fine sandstone, but has several veins of secondary calcite leading up to it. The whole is surrounded by fragments of micaceous slate and sandstone. These fragments have apparently been caught up by the lava in its intrusion, and cemented well into the lava during consolidation. The detached fragments of lava in the breccia indicate earth movements subsequent to the consolidation of the lava. These may have followed the consolidation immediately, resulting from the same rock stresses involved in the intrusion itself. A thin slice (Plate I., Fig. 2) of another specimen of the contact material was prepared, cut transversely to the contact, and through visible gold. This section clearly shows crustification parallel to the direction of the lava. The gold in the hand specimen could be dis- tinctly seen lying between crustified bands for a length of about four millimetres before the slice was cut. Under the microscope, pieces of slate, galena, and opaque material are seen between the cruslitied bands. Mixed with the opacpie matter and also with the galena is gold. As before, the opaque matter lookss decidedly carbonaceous. This crustification clearly shows that mineral-bearing siliceous and cal- careous solutions have traversed the side of the lava, subsequent to the lava. The presence of carbonaceims material suggests that it was the precipitant of the gold. 12 F. L. mUlireU: Connected with this is the fact that the bulk of the gold ia in the brecciated material, which would itself certainly provide the easiest passage for soluticms. This is evidence which points to the conclu- sion that the gold is secondary, meaning by this that the gold is sub- sequent to the reef, that the gold haisi been deposited elsewhere first, from there removed, and re-deposited in this breccia, and that therefore there has been secondary enrichment in this particular spot. A drive was opened to the south from this winze for about a hundred feet, and a second winze is being sunk. In this winze the lavas are six feet apart, but the whole of the space between is not filled with quartz. It is in part slate, and tlie reef, about three and a-half feet wide, pursues a wavy course downwards. Occasional colours of gold, I was informed, are seen throughout the reef, but the brecciated material seemed to be absent. The reef in this winze is not nearly so rich as the No. I. winze, and this erratic distribution supports the conclusion of secondary enrichment. The lavas may infiuence the gold distrilnition in the following ways : — (1) The heat accompanying the intrusions may stimulate the flow of tlie underground solutions involved in the formation of the quartz reefs. (2) The lava sheets may act as an inpervious barrier to the transr verse passage of such solutions. (3) The lavas may form drainage channels for the vertical passage of such solutions. (4) The dyke n)aterial may act as a precipitating agent to the gold carried by traversing solutions. If the lavas are of the late geological date indicated by the i)etrolo- gical evidence, the first of these methods has had no effect on the primary deposition of the gold. Observations where the dykes cut through reefs at the deeper levels, as at 2300 feet in the Catherine Mine, Eaglehawk, and at 2600 feet in the Koch's Pioneer, Long (tuIIv, are all negative, yielding no evidence of any influence on the gold distribution. Such infiuence would be noticeable, if anywhere, in the deepest levels, where the heat and stimulation would be greatest and it is becoming generally recognised that the deeper reefs are not so valuable as the shallower reefs. If the second method operated, one would expect enrichment only on one side of a lava, cutting through a reef, and I have found no evidence in this direction. The third method is one which I venture to suggest in explanation of che above Ironbark occurrence. The evidence points to the circulation of gold-bearing solutions subsequent to tin- iccf. and to the lava. The evidence is not suificient to decide whether the solutions came from Notes on Movchiqviic Dyhes. 13 above or below. Circulation of solutions may operate throufrhout the whole field, but for enrichment it is necessary that : — (1) The solutions should traverse the dyke channel. (2) The solutions should be gold-beax'ing. (3 The solutions should meet material which will precipitate the gold. Only where these three conditions meet will enrichment result. En- richment will thus not necessarily result when a decomposed dyke meets a quartz reef or spur. If the enriching solutions are travelling downwards, enrichment is only likely in the shallower levels of any mine. The fourth possible method is suggested by the example recorded by i\rr. Dunn (2) in the Hercules and Energetic Mine, where a quartz spur cut through the dyke, and is rich in the dyke and poor on each side. No evidence has been produced to show how the dyke could possibly so operate. In concluding this paper I should like tn acknowledge the invaluable assistance of Mr. T. W. Itoss, B.M.E., Assistant Inspector of Mines, in gaining for me access to the mines, and of Mr. H. S. Whitelaw and the members of his staff, and by no means least the unfailing courtesy of the mining managers. In the laboratory I have been much indebted to Professor Skeats and Mr. Summers, M.Sc. To Mr. H. S. Grayson I am especially indebted fnr the preparation and staining of rock slides. Summapy. The dykes of the Bendigo goldfield are intruded into folded ordo- vician rocks. They form a parallel system with a parallelism coinci- dent with the strike of the rocks. They occur along the course of each anticline, and in the mines are always approximately in the centre country. At the surface they are always decomposed and soft. Specimens of fresh lava were obtained from several of the mines. These were examined, and one was analysed. The rock was found to be highly basic, and a member of the monchiquite group. The mon- chiquite was found to pass into camptonitic varieties at the Forbes Carshalton Mine, and at the Goldfields No. 1 shaft. A kersantite is recorded from the One Tree Hill Mine to the south-west of Bendigo. The age of the rocks can only be determined by petrological analogy, and is considered to be probably mid-kainozoic The relation of the lavas to the distribution of the gold is discussed. Evidence has been obtained in the Ironbark Mine to suggest the secondary deposition of the gold. Gold is found more abundantly and irregidarly in thoroughly brecciated material than in the adjoining 14 F. L. Stilhvell: Monchiqiiite Dykes. reef quartz. .Some of this g-okl was exaiiiined microscopically in tliin section, and was found to be in crustified bands along the side of the lava. Hence the lavas are believed to influence the deposition of gold only in so far as they provide drainage channels for the flow of secondary mineralising solutions. Literature. 1. Gregory, J. W. — Contributions to the Bibliography of the Economic Geology of Victoria. Reo. Geol. Sur. Vic, Vol. II., Pt. 3. 1907. 2. Dunn, E. J. — ^Reports on the Bendigo Gold Field, Nos. I. and II. Special Rep. Dept. Mines, Vic, 1896. 3. Howitt, A. W. — Notes on Samples of Rock Collected in the 180 Mine at Bendigo. Special Rep. Dept. Mines, Vic, 1893. 4. Miigge, 0.— Neues Jahrb.., Min. Geol., 1894, Vol. II., p. 271. 5 Rickavd, T. A. — Origin of the Gold Bearing Quartz of the Bendigo Reefs, Australia. Trans. Amer. Inst. Min. Eng., XXII., pp. 289-320. G. Argall, F. — The Dykes and Reefs of Bendigo. Trans. Amer. Inst. '^Min. Eng., XXIV, pp. 933-942, 1894. 7. Whitelaw, H. S.— The Northern Bendigo and Raywood Goldtield. Rec Geol. Surv. Vic, Bull. No. 12, 1904 8. Harper, A. — The Natural History of Igneous Rocks. Metheun and Co., p. 12. 9. Maclaren, J. Malcolm.— Gold, its Geological Occurrence and Geo- graphical Distribution, p. 367. 10. Chapman, F., and Thiele, A. 0.— On a Limburgite Rock Occurr- ing as a Plug at Balwyn, near Doncaster. Proc Roy. Soc Vic, Vol. XXIV. (new series), Part I., p. 124. 11. E. W. Skeats and H. S. Summers. — ^The Geology and Petrology of the Macedon District. Bull. 24, Geol. Surv. of Victoria (in the press). DESCRIPTION OF PLATE I. Fig. 1. Mt)nchiquite ; 318-foot level, Central Bed, White and Blue Mine, Bendigo. x 35. Pig_ 2. — Kersantite ; One Tree Hill Mine, Bendigo. x 2'). Proc. R.S. Victoria. 1012. Plate I. <* V |4^' -• ^ » 35 "f^r X': ^. ^'? ■^^ ^ ir. X 25 [PRor. Rot. Soc. Victoria, 25 (N.S.), Ft. I., 1912.] Akt. 11. -The Iiitrudactioi) and Spread of the CaNlc Tick (Boophilus ainiulatus, var. riiicropiiis), and of ilie Associated Disease Tirl- Fever ( B((hesiasis) in Aiisti'(dia. By J. A. GILRUTH, D.V.Sc, .M.iJ.C.V.8., F.R.S.E. [Rend Hlh March, 1912J. Australia, although a large portion of its local area is situated within the tropical belt, is happily free from almost all those i)rotozoan diseases which affect the doiiiesticated animals in tropical regions else- where. For this she has to thank not quite so much the foresight of her administrators, as her insular position, the fact that no domes- ticated animal is indigenous, and above all, the fact that all her importations have been derived almost solely from the original home of her people, namely, Great Britain. Nevertheless, there are at least two specific diseases present in Aus- tralia, both affecting cattle, and Ijnth the cause of considerable pecu- niary loss to stockuwners, either directly or indirectly, and these are diseases which are unknown amongst British stock. The diseases in cjuestion are " Tick Fever " or " Redwater " (Babesiasis) and the so- called " Worm Nodules, ' due to the parasite Oncliorcrca (jihxoni, which is dealt with in another paper. Tick fever is not found all over Australia. It is rare in the southern Stoies, and has not yet appeared far south of the tropical border. The evidence all points to its greater prevalence the further north stock are pastured. Now, as the Australian tick fever is not present amongst the British herds which have formed the basis of our Australian herds, it is highly incumbent on us to ascertain exactly how it came to be introduced, or at least the most probable sources of introduction. But to do so one must first of all consider which countries are most likely to have been in a position to affect Australia in such a manner. So far as I can gather there are no official records of stock importa- tions ever having been made through any ports other than the main ports of the southern part of the continent and Queensland. At these ports there. has been almost from the earliest days of settlement a more or less satisfactory system of inspection and quarantine, and the most cursory official examination could have hardly failed to detect the tick parasite, which is a necessary agent in the natural transmission of 16 J. A. Gilriiih: tick fever. Had its presence been overlooked in any instance, one is safe in cnnclndinf!: that it would have been heard of primarily in one of the southern districts. But we hear of its appearance first in the northern parts of the tropical regions, far away from known ports of cattle entr}^. One is therefore impelled to the conclusion that the disease must have entered by way of the northern littoral, unless indeed it be assumed that the same tick parasite affects indigenously the native fauna, for which assumption there is absolutely no evidence. Irresist- ibly we are compelled to look to the countries lying north of Australia as the possible source of original infection. The nearest territory whereon cattle are husbanded is the Dutch Indies. There we know that the tick is a common parasite among the native cattle, and that although these cattle exhibit a great natural immunity to the blood-parasite {Babesia), the true cause of tick fever, which is transmdtted by the tick, yet imported non-immune cattle are very susceptible, at least in the Straits Settlements adjacent, and unless special precautions are adopted, are almost certain to succumb in considerable numbers. The same conditions obtain in other tropical countries lying farther north. Our nearest neighbour has, therefore, this tropical disease of cattle. But we are separated from her by hundreds of miles of sea, communi- cation is infrequeni, and besides, there are no official records of the importation of cattle therefrom to Australia. If it can be shown that live cattle have been imported notwithstanding, the position becomes clear. If not, it seems obvious that other agencies must be looked for, and that if this disease has been introduced by unknown means, other and perhaps more to be dreaded tropical animal maladies may be introduced in the future ; indeed, they may be at the present moment existing to some extent in our northern areas. The buffalo naturally oft'ered a possible solution. It is well known that the Governors of the British settlements at Melville Island and Port Essington (aj)out 1826 and 182(S) imported the mud or swamp- buffalo from Timor, and Johnston and Cleland have drawn attention to the fact that the Governor of the Port Essington settlement was also empoweied to import cattle from the Netherlands Indies, though they could find no rtMord of this having been done. Since their introduction to Port Dundas by Sir Gordon Bremnier in 1824, the buffalo have spread all over Melville Island ; and since their introduction to the mainland at Port Essington they have gradually spread southward along the swampy plains near the sea-coast to within a few miles of Port Darwin. A few have wandered inland, hut chiefiy bulls Avhich have left the main herds, one or two being occasionally seen as far as the Roper and even the McArthur Rivers. Cuttle Tick (1 11(1 Tic/: Fever. 17 During my visit, thanks to the kindness of Mr. W. Lawrie, I had an opportunity of exaniinino; a number of fresh buffalo hides, besides a buffalo killed for my examination, and no ticks were detected thereon, although these animals were running on land where the cattle wore badly tick-infested. Again in Melville Island I was enabled through the courtesy of Messrs. Robinson and Cooper to examine buffalo immediately after slaughter, and buffalo hides, and can testify tj the freedom of these animals, at least at the time of my visit, from cattle ticks or other tick infection. This, it must be admitted, is in accordance with the experience of buffalo hunters generally. Others, it is true, have assured me that they have actually seen the tick on the buffalo, and while not being in a position definitely to con- tradict these statements, T am inclined to the opinion that the large louse (Hae)H(ifopinus sp.) which constantly aft'ects these buffalo, mav, in a cursory examination, have been mistaken for ticks ; that thev have been so confounded by some I am certain. It should be here observed that about 188G, Indian l)uffaIo (two cows and one bull) were brought to Port Darwin Ijy the agencv of the Government, with the intention of establishing the Ghi (or buft'alo butter) industry. Some of the descendants of these buffalo may still be seen being employed as beasts of burden. They also are apparently tick-free, and in any case were introduced subsequent to the known appearance of redwater or tick fever in the north. I think, therefore, the buffalo may be held guiltless of the charge of introducing the cattle disease in question, the chief reason being that to-day he is unaffected with the necessary skin parasite, even when grazing on the same land as )> a dly- infected cattle. Tlie result of my enquiries, however, abolishes any necessity for assuming any other agent in the introduction than the live bovine animal itself. Through the kindness of Mr. J. Campbell, late Secretary of Agriculture, Sydney, I have been able to procure a copy of a despatch, being a report on the Port Essingto^n Settlement, addressed to the British Government by Captain Everard Home, dated from H.M.S. " North Star," 19th April, 1843. Captain Home furnishes a description of the settlement at that date, and states, inter alia, " of stock they have one English cow and a l)ull, two Indian heifers and two cows, about 50 goats, and a few fowls. . . . There are besides 6 working oxen and 30 buffaloes and pigs, the property of th-e Gkivern- ment." That the descendants of these Indian cattle are still on the Coburg Peninsula is vouched for by Mr. E. 0. Robinson, Mr. H. W. H. Stevens. Mr. R. J. Cooper, Mr. C. Freer, and others, who have traversed the country buffalo shooting, etc. The evidence is, however, that these cattle, unlike the buft'alu, have not spread, and have never reached country occupied by station cattle. But that they would originally bring with them cattle ticks is almost undoubted. 3 18 J. A. Gil ruth : Unfortunately at the time of my visit to Darwin there was no means enabling: me to reach Pon Essinsjton. so that an examination of the descendants of the original cattle, interesting: and important as such an examinatiiin would ha^e l)een, was impossible. But that this importation alone would not account for the spread of ticks through tropical Australia I am convinced, for the reason that the natural spread of ticks is by cattle, and rarely by other aerience goes, are all unatt'ected with Onchorerra. but all the cattle depastured on the same country are more or less affected— indeed, the greatest extent of infection yet seen was in a steer killed at Port Darwin, the region of the brisket showing at least a hundred nodule.s — so that, although experience is limited as regards the buft'alo. 24 GiiriUh and Sweet. : it seems almost L-ertain that had the buffalo imported at the early dates given above been the (irii) and of tick fever, may also have introduced the " worm- nodules," yet they could hardly have been the first source of intro- duction, seeing we have circumstantial evidence of the appearance of these nodules in (Queensland at least 40 years ago. It may l)e noted, however, that the crossbred descendants of those Brahma cattle, when examined, all show more or less Onchocerca infection. Genei^al Characteps of the Nodules. In some animals recently examined in>st mortem, the proportion of nodules situated in the deep pectoral muscles was nmch less than had previously been noted, while in the thigh they were very few in number, and then were situated close alongside the head of the femur. In each case they were more numerous on the right side than on the left. Two cases are here given of two cows from the same district in North Queensland, and kept here under exactly similar conditions {vide infra) for 6 and 8 months respectively, B having been killed two UKmths later than A. \ (5 .vpai- eld COW). B (3 year old cow). Total number of nodules - - 47 (lUL, 28R) 15 (6L, 9R) Number of nodules in thigh - - 0 3(1L, 2R) Number of nodules containing eggs and living larvae - - 22 4 Number of nodules containing in- traparasitic parasites - - 10 4 Number of nodules degenerate - 1") 11 The proportion of nodules in B, containing degenerate parasites, is more typical than in A, and undoubtedly a marked diminution in size of the nodules took place during the months the cows wei-e under constant observation, as determined byfrecpient manij)uiaLion. 26 Gil ruth anfl Stueet : We have previously noted the fact that amonf);st the large number of nodules which we have examined, the female parasite was either in a stage of complete development lil)erating living larvae, or the nodules contained degenerated parasites ; in other words, no immature parasite has ever been found in a nodule. With these two cows for a period of 6 and S months there was absolutely no possibility of reinfection. Many of the nodules could be felt under the skin, and as a number of these subcutaneous nodules were found />o'i, but prothorax with emargination of apex more even, and basal angles completely rounded off. On each elytron, the vitta at the luise is ciuifined to the fifth inter- stice ; it immediately dilates so as to include the fourth, at about the basal third it extends to part of the third and sixth, at about the middle it occupies only the third and fourth, and it then contracts so that at its apex it is only on part of the third. Although not desci-ibed, a specimen of this species was previously noted (these Proceedings, 1910. p. 122) as having Ijeen taken from an ant nest ; as since then I have taken another specimen in the same way, it is to be presumed that the species naturally occurs with ants. Adt/nf(ij/h' ipxoidex, Westw. On sending a specimen of 'this species from Geelong Mr. Dave}' wrote: — "Recently I opeiie< StcpJieii-'d, Mad. y.lv. Davey sent a specimen of this species as from a «iest of an Indo/iij/rnier at Panniuie (Victoria). I had myself taken specimens from under ji stone amongst ants.i l)ut thought they were there by aL;cident. This, however, was probably not the case. Mr. Davey, on being written to for information as to how he c:iptured his specimen, wrote: "The Illdjiluiuit-'t was crawling along a drive with the ants when I took it." I have recently taken two specimens of the species, under a stone, close to a nest of Flitidide Tasmaiiieiisis at Dunorlan (Tasmania)^- and another at the side of a nest of a species of Mouoinariuin at Spreiit, and another at the side of the nest of a jumper ant [Mt/r/iiecia) at Evandale Junction. Ilhi pjxnrus M (irhdyi. Lea. The types of this species were taken under a stone that covered a nest of OrertiHiiKtthux anininatus. At the time it was considered that they were oiily casually with the ants, but this uiay not have been the case. Staphylinidab. I'oJi/Inhiis piri^oxnhri iiitfi, n.sp. I'iceous ; prothcrax and abdomen obscurely jtaler ; legs, palpi ami base of antennae tlavous. With rather dense and very tine pul)escen(e. longer on abdomen than elsewhere. Head rather rounded; eyes scarcely projeciing. Antennae extending to biise of pi'othora.x, lig-htly inflated towai'ds apex, (hiid to teiilh joints transverse, eleventh conical, about as long as three preceding coniibined. Protlioror moderately tran.sverse, front angles stronglv Kumded, sides thence oblique to base, which is gently rounded ; with minute punctuies. Elytra about once and one-third the width of prothorax, sides feeibly, but shoulders strongly rounded, sides al)0t:l one-fourth longer than suture; with dense minute punctures. Ahdoinen feebly decreasing in width to ajiiuil third, thence stiongly to apex. Length. 1^, to apex of elytra f mm. 1 A snmll liliu'U species, fioin iiu'iimrv i-ithoi- Irialer at the base than in the middle. I'd! ijlohitx hr((('Jii/ pfe.rua, n.s]). Of a rather dingy flavous, head and Hfth and part of sixth ab- dominal segments infuscated. With very tine and short pubescence. Depressed. Head rather longer and less rounded than usual, with small punctures. Antennae lightly incrassated, extending to base of j)rothorax ; third to tenth joints transverse, eleventh subconical, scarcely longer than two preceding combined. Prothora r very little wider than long, angles rather strongly rounded, side.-? and base feebly rounded ; punctures indstinct. Elytra no longer than prothorax and scarcely wider ; punctures indistinct. Abdomen parallel-sided to apex of sixth segment. Length, 1|, to apex of elytra J mm. ffab. — Tasmania : Evandale Junction, from a nest of Pheidole roii- ffirta (A. M. Lea). A thin pale species, with exceptionally short elytra, that appear too small to cover wings. Although the colours are somewhat as in ])aIIidomlii()/\ the species is very distinct from that one, being nai*- r.ywer, ])rothorax less transverse, elytra much smaller, al)domen parallel-sided to apical segment, antennae slightly stouter, etc. A specimen from Bagdad, from a nest of Ertatowuia meUdl Ini m, probably belongs to this species, but is rather i>aler (jierhaps from immaturity) and smaller. Polj/lohini tenuis, n.sp. Of a rather dingy ilavous ; head, antennae (base excepted) and elytra tlavous brown ; fourth, fifth and part of sixth abdominal seg- ments darker, sometimes almost black. With very tine, short, pale pubescence. Head rounded, punctures very indistinct, eyes moderately pro- minent. Antennae passing base of prothorax ; first joint moderately long, but slightly shorter than second and third combined, these subequal, fourth to tenth transverse, eleventh subconical, as long as two preceding combined. Prothorax moderately transverse, sides and base rather strongly rounded ; punctures very minute. Elytra lightly transverse, scarcely wider than widest part of prothorax, and very 36 Arthur M. Lea: little longer, sides straight and slightly longer than suture ; punctures dense and very small. Ahdonien long, thin and parallel-sided to apex of sixth segment. Length, 3, to apex of elytra 1 ; variation in length, 2 J — 3 mm. Hdh. — Tasmania : Railton (from nests of Ertatouutia nirtall icinii. and Iridoiiiyrme r ylaher), Stanley (in tussocks at summit of " Nut "), Hobart (in tussocks and fallen leaves). Mount Wellington, Parattah, Launceston, Stonor (A. M. Lea), Victoria, Geelong (from a nest of Iridomynnc.r nitidiis), (H. W. Davey) ; New South Wales; Glenfield (from a nest of E. mtfaUirii//i), National Park (amongst rotting leaves), Tamworth (Lea). A narrow shining species, in general appearance close to Honialotd charitssa, but prothorax without the " four large punctures just be- fore the middle on the disc " of that species. The prothorax is some- times scarcely paler than the elytra, l)ut is usually conspicuously paler. Fnljllolnis quadi-ati pentrifi, n.sp. Of a rather bright Havous red, elytra and metasternum darker, middle of abdomen still darker. With dense pubescence rather longer than usual in the genus, the sides, except of abdomen, where they are dense, with a few short hairs. Head with sides much less rounded than usual ; with very small punctures. Eyes fairly large and prominent. Antennae rather stout, passing base of prothorax, fourth and fifth joints feebly, the sixth to tentli strongly transverse, eleventh almost as long as three preceding combined. Frothorar about as long as wide, sides and base gently rounded, jmnctures small a.nd more or less obscured by clothing. Ehjtni (|uadi'ate, about one-fourth wider than prothorax, and dis- tinctly longer ; with small and moderately dense punctures.. A})do)nen rather narrow and parallel-sided, with strong margins to near apex ; punctures fairly dense and distinct, except at tips of the segments. Length, "2^, to apex of elytra 1^ mm. Ha}). — New South Wales : Barraba, from a nest of I'hf^idoh sp. (F. A. Rod way). The elytral punctures from some directions appear to be trans- versely or obli(|uely confluent. It is distinctly stouter than most species of the genus occurring with ants. P(t/i//()hiis apianus. n.sp. Flavous-red, in places deepening to blond-red, lt\!is. ]ialpi and base of antennae paler ; a large rounded spot on eaeh elytron, and fourth and fifth abdominal seguients black. With short jiale pubescence, the sides, especially of abdomen, with tine hairs. A aMridian and Tai^mav iI l/lohiix jxillidoiiiinor. Lea. Mr. Cox has sent a second specimen of this species from a nest of Iridomyrmcx rufoniger. I have also 20 specimens that were taken in Hood debris on the Nepean River by Mr. A. J. Coates. *Folylo}>\is Ddvryi, Lea. A single specimen of this species uas taken near Adelaide, l)y Mr. Griffith, froui a nest of Ectatoiniiut iiictdHiniiii. ^Calodera citneifera. Lea. Mr. Davey ha« sent three specimens from Geelong and Ararat, as having occurred in nests of a species of Iridonnjrincr. *Mynnedonia claviyera, Fvl Recently taken near Hohart from a nest of Iridoiinirnic r ylaher. HovHihitd triyoiiae, n.sp. Black, shining ; elytra piceous-brown ; legs, palpi and basal joints of antennae somewhat paler. With very short ashen pubescence, longer on abdomen than elsewhere ; sides with a few short hairs. Hcdd convex, moderately transverse ; punctures very indistinct. Antennae not very thin, just passing base of prothorax ; first joint as long as second and third combined, fourtli to tenth transverse, eleventh subconical, almost as long as ninth and tenth ccnubined. I'rothdrar almost twice as wide as long, sides and base evenly rounded : with a puncture on each side of the middle at :ibout one-third troui the l)ase, and with much smaller and dense liut latliei' clearly defined jMinctures. Elytra sliglitlv widci' than prothmax, and sliglitly wider ihan long; with small, dense, clearly defined jiumniies. Ahdoimn as wide at apex as at base, the sides very feel)ly increasing in width to middle: margins strong. Lrys rather long. Length '1\, to apex of elytra 1 mm. Hah. — NeAv South Wales : Sydney, from a nest of Trnjoiid rar- bonaria (C. Gibbons). 1 Now first recoi'ded from the inainlaiid. AiLstriili(tii anil Tdsiitc uinn Coleopfcni. 39 In general appearance close to parens, but antennae shorter and stouter, and prothorax very decidedly transverse, its sides more strongly and evenly rounded, and disc with two conspicuous punctures. Also close in appearance to ('ahKlera cuneifura, but readily distin- tjuished therefrouj by the apical joint of antennae. Fnun some direc- tions an extremely faint mediiiu protlnjracic line is visible. 1 1 oiiialiifd r:irvii-(ni(lase. and feebly infuscated l)et\veen eyes. With very short pale l»ul)esccnre, lonirer at sides and apex of abdomen than elsewhere. I!t(i(l. int'ludiny mouth parts, subquadrate : with dense minute punctures. Antennae extcndimi' almost to base of prothorax ; first joint stout, about as long as three foUowino; combined, se-ond to tenth subequal, eleventh not much longer than tenth. J'rofliora,?; slightly narrower and slightly longer than head, subovate, apex pro- duced ; a shallow depression on each side of base marking oft" the base of a very feeble longitudinal elevation ; punctures as on head. Elytra parallel-sided, scarcely longer than wide, the width of prothorax, and with slightly larger punctures. Abdomen feel)ly increasing in width to apex of fifth segment, thence decreasing rapidly to apex. Lfg>i not verv long; femora rather stout. Length -"i. to apex of abdomen 1^ mm. Hdh. — New South Wales: Sydney, from a nest of Irnhniii/niit' r sp. (A. M. Lea). In size and sliaiic much like S. duhtwi and .V. om-ol/is, but very dififerently coloured. Lithofluirix (■(nil jitiiiofi, n.s]). Bright fiavous red, appendages somewhat paler, apical two-fifths of elytra, and basal two-thirds of upper surface of fifth abdominal segment black. Clothed wuth short depressed pubescence : sides Avith a few short hairs, becoming longer and denser towards and at apex of abdomen. Ht(uL including niaudibles, slightly longer than wide, sides almost parallel behind eyes, between them the derm somewhat flattened; with dense minute punctures. Antennae extending to base of prothonix, first joint aljout as long as second and third combined, each of these a trifle longer than each (jf the others to tenth, eleventh subconical, about half as long again as tenth. I'l-titlutrdi with front almost the exact width of head, and the angles right-angles ; sides gently decreas- ing in width to base, with basal angles rounded ; punctures much as on head. Elyti-a just perceptibly longer than wide, the width of head, bas il and apical angles rounded, sides |>arallel, apex slightly oblique to middle ; punctures small but more distinct than on pro- thorax. Ahdoiiun parallel-sided or gently increasing in width to beyond the middle, thence rapidly decreasing to apex, fourth segment distinctly lunger than third, fifth longer than third and fourth com- bined. Leg)t not very long : femora stimt. Length 2|, to apex of elytra H mm. 42 Artlmr M. Lea : Hah. — New South Wales: Otford, fioiii nests (if Cai/i/ionofiis aeneoijiloms (H. W. Cox and A. M. Lea). Apparently close to cinrtd, but abdomen not entirely pale, elytra with dark part at, instead of before, apex, and punctures not as described. Tlie dark part at the apex is sr/metinies slightly cut into alonji' the suture. Tliere are about three hairs on each side of the head, four or tive on each side of the i)rothorax. and about the same on elytra ; they appear, however, to be easily abraded. *(rl yptoind iin/riiicc(t])liil II III , Lea. A specimen of this species was recently taken under rotting bark of a fallen log at Ulverstone.i *0i i/ti'iiis III irropfei us. Lea. Mr. Davey has taken two specimens of this species from a nest of Cdiii pDiintiis II i(jriirp>i at Lai Lai (Victoria). PsELAPIUOAE. In addition to the species now recorded I luwe taken a very minute- specimen of this family from a nest of I ruhmi i/riiii' r i/htlier in Tas- mania. It is blackish with pale appendages, and is apparently with- out a medio-basal prothoracio impre.-sion ; tlie head, however, has a rather deep gioove on each side, the two conjoined in front, and these combined with an elongated form would appear to exclude it from Etipinrs, As it is a female it appears undesirable to propose a new genus for it. Xarcodes ectatomviat, n.sp. c? . Of a dingy reddish brown, abdomen blackish, club infuscated. Clothed with short, subsquamose clothing, mostly stramineous, but variegated in places (notably on abdomen) with sooty. Iltad large ; with three shallow impressions, of which the deepest one is in front; base gently incurved to middle, and produced on eacii side behind the eye; each margin near apex with a snuill subconical projection, indistinct froin some diiections. Antennae moderately long, first joint stout, as long (wlien viewed troni ihi- sides) as second and third coniljined, third distinctly longer than second or fourth, ninth distinctly longer than eighth, about as U)ng as wide, tenth larger, eleventh truncate-ovate, slightly longer than ninth and tenth combined. I'rotliura.r decidedly transvcisc, apical half with flattened and dilated sides, which are obtusely bituijcrculate (the Iriul lubiiele 1 Now first reconlud fpnii Tasinaiii;!. 2 It is just iiurcijitildv larmier (liaii hhiitiitidl^x dfislnilh, the sniallcst known species fi-DUi Australia. A iixtniliii a iind Tasmmildv. Culeoptcra. 43 vfi'v (tl)tusfc') in middle towards liase with a niodeiatcly *lai <:o fovea, thence to a})ex feebly ridded, eaeh side with a rather larer surface a greyish appear- ance. Head wide ; with two large Init ratlier shallow inter-ocular foveae. Antennae coni]>aratively short, second joint slightly stouter than tirst and, t'loui above, ajipaiently slightly longer, third to seventh small, eighth, ninth and tenth about as long as wide, sul)e(pial, eleventh about as long as ninth and tenth comljined, and a trifle wider, i'ro- f hold I feebly transverse, widest at about apical third, sides tlience oblique to base; with a rather large medio-basal fovea. Elytra dis- tinctly transverse ; eaeh with sutural stria distinct, the dorsal rather wide towards Ijase, and elsewhere very narr(nv l)ut clearly defined. Under surface of fourth segment of (d)iUumii with a shallow sub- triangular impression, indistinct from most directions, whilst from others each of its walls appears to be tipped by a minute tubercle. Ltya comparatively short (for the genus). Length 1-| mm. y/a6. - Victoria : Geelong, from a nest of 1 rulnitn/nnt i . sp. (11. \\ . Daveyj. Readily distinguished from all i>ri'viously described sj)ecies by its dark colour; the tip of the al)domcn and the prothorax are not quite 44 Arthur M. Lea: as dark as fhe rest of the ujtper surface. The four apical joints of antennae are rather more than half the total lenpfth ; the eighth is very little longer than t!ie ninth. *( 'fe/usojtlnis niorosu-s, Kaffr. Mr. (Jrithth has taken this species in Tasnuuiia from nests of EctatiHiinui nirtalJiniiii : and I have taken three from a nest of I'oli/rliar/i is hexucantlui. Cleinsoph ax viriidJift, King. Dr. Ferguson has taken sexes of this s})ecies from a nest of termites {Enttnnex, sp.) at Xarrnmine. *(_'trin>i()p]iii>i I//I //rrssiis. Sharp. Mr. Griffith has taken near Adelaide a specimen of tliis species from a nest of Erf(/to//i uui Mai/ri. T ntf-si plio) tix liftplon j)luil ux, n.sp. 3- Keddish castaneous, elytra, tarsi and palpi paler. "With moderately dense short imbescence, tij) of elytra rather densely clothed, a fascicle of golden hairs on each .side of base of head. Head with two small inter-ocular foveae, front longitudinally ini- I'ressed between antennary ridges, a snuill acute conical tubercle or spine behind each eye ; densely punctate all over. Antennae modfci-ately long ; third to eighth joints transverse, ninth subcjuadrate, njuch wider than eighth, and ahnost as long as three preceding com- bined, tenth aljout as large as ninth, scooped out on one side, eleventh lop-sided, and about once and one-half as long as tenth. Palpi with a strong spine on each of the second and third joints, the apical joint strongly jjroduced on one side and acutely produced at apex. Pri>- thorar slightly longer than wide, sides widest at about apical third, thence incurved to base ; with a snndl mcdio-basal fovea, and a larger but shallower one on each side ; punctures as on head. Eltitrn lightly transverse; each with dorsal stria, rather wide on basal half and scarcely traceable beyond the middle ; witli clearly defined punctures, not as dense as on prothorax. Atxloineii with a strong narrow carina on each side of the second and third segments : lower surface with a very feel)le tlejU'cssion in middle of st cond and tlii.d segments. Trucha liters unarmed ; front libiac excavated in iniddk of iunci- sur- face. Length '1^ mm. //a6.--New South Wales: Xarromine. from a nrst of white ants (E. W. Fergustui). The head is armed behind each eye sonu'what as in 7'. fm/itfopliilus. In shape it is much like 7'. po/ierae and 7'. fteiu. 45 and club are different. 7'. breclcorins is without the golden basal fascicles, and has much shorter antennae. It is ]ierhaps closest to T. KiiKji of all the described species, but the elytra liave the .-ulcii.s on each side much less pronounced, the front tiliiac different, and the ventral impressions of diffeiciit shape and nuich shallower. From some directions the front til)iae appear to be scooped out in the middle or bidentate. The eleventh joint of iintennae is obtusely produced on one side, and its lower surface is <>:ently concave, the tenth has a small tultercle on one side of its apex. Davetia. n.tr. Head transverse, bifoveate ; a wide thin fl;in( ; ^ which Raft'ray at the time of description referred to the vicinity of TmesipliDrus, but later'- placed closest (of the Australian genera) to Leani/nnix. The palpi" of Daveyia, however, are very dift'erent to those of Ctenotilhix, and I 1 Raffray, Ann. Soe. Eiit. Fr., Ixv., 1896, Plate II., Fig. 5. 2 In his inoiioirraph in Wytsnian'a Genera Insectorum, p. ;i67. ■i It is very liiffieult to manipulate tlie palpi, as rhey snap ofif almost at a teach. 46 Arthur M. Lea: have seen nothing; firjured at all like them : the snbapical joint has a nuni'ber of stout hairs, that from some directions appear to 1)e simple, hut from others knobbed, and in some lif;hts they look nuK-h like the sticky hairs of some species nl Droi^era. The o't-nus evidently l)elr)n^s to the Tyrini, and foi' the present may be placed in the vicinity of T inexi phorus. It is with very < /lavij)a//)is. Lea. There are five sjiecimens of this species in the IJritisli Museum from Townsville ; two are nuiles, and dirt'er from the females in having the middle of the second ventral segment with a slight longitudinal ridge at its apex. The metasternum is less convex, and about the apex is somewhat excavated. * I'stia pliiiK (/f/iiniafiis, Westw. There is a specimen of this species in the Macleay Museum frouj South Australia. AiintnUiaii and Tuisuni ui.au (Udeopittra. 47 Margarix ii/i /x-rifi/ix. Scht's. In his catalopjue, Wiisiiiiinn states that this species is myrme- cophilnus. The only specimen I have seen was obtained in flocd debris. Hamotopsis auriroinuf;, Lea. Mr. Davey has taken five specimens of this sjiecies fioni nests of A //ihIi/()/)one austral Ifi. Eudranex cariiiafiis. Sharp. The type of this species was taken from an ants' nest ])y Cnm- m under J. J. Walker. RyhariK (ctafiHii iiiae, n.sp. Brij^-ht castaneous, legs (knees excepted) and palpi somewhat paler. With short, pale pubescence, interspersed, especially on al)domen, with some longer hairs. Head highly polished ; with a (for the genus) rather small and j)artly open fovea close to each eye, frontal impression shallow. Antennae rather long, first joint apparently (when seen from above) no longer than second, but really (when seen from the side) distinctly longer, third to sixth rather small, seventh larger, eighth slightly smaller than seventh but larger than sixth, ninth and tenth small, eleventh snbovate, apex pointed, about as long as three preceding joints combined. Prothora r moderately transverse, widest at about apical third ; with a small medio-))asal fovea, indistinctly connected along base with a comparatively suuill fovea on each side. Elytra about as long as wide ; each with sutural stria distinct, dorsal dis- tinct at base, but not traceable beyond middle ; epipleural furrow absent, but marginal stria distinct ; punctures small but fairly dis- tinct. Metaxtiinuni rather shallowly impressed. Abdomen somewhat flattened along middle. I^eys rather long and apparently unarmed. Length, Ij mm. Hveata, but antennae and prothoracic impressions different. The inflation of the seventh and eighth joints is not very strong, 1 ut is such that they are notice- ably larger than the preceding or following ones. Tbe two specimens l^etore me appear to ))e males, although they have no distinctive sexual features on the under surface and legs. Rybaxis villosa, n.sp. 3'- Of a rather pale, dingy castaneous, tarsi and palpi paler. Indistinctly pubescent, but with numerous distinct and rather long hairs. ■48 Arl/nir M. Lat : Hei (A. M. Lea), Sydney (Macleay Museum). A small species with long straggling hair, especially on the elytra, where it is more noticealjle than in the preceding species. Ryhdiis fibid/i-'i, Raft'r. K. hrj/oph il(u Lea. M. Raff ray's name was published in 1909, and consequently, not being noted in the Zoological Record, was unknown to me at the tiuic I nauied R. hri/diihihi, which is a syr-ouym of it. Raffray's figure shows the tenth joint of the antennae as longer than in any of the numerous specimens I have examined. A single male of this Lnnimon moss species was recently taken from a nest of [ ri(l-fdvi:dtf the cluh of C. Shiinnl from Hoiiieo : Rev. d'Kiit. 1895, PI. 2, fl(f. 21. .last ra/ ill II mid Tusmn ninn ('oli'optcrit. 51 ill t'lnnt. l)ut from ntlieis they are seen to be nnly shallower there, and they really meet in frcnit, so that combined they apjiear to form a short broad A, with a raised A immediately behind. I'lcrtuxiuli'!^ inibe!ubescence, interspersed with a few longer but not very conspicuous hairs. Head wide ; with a wide impression in front, curved round at sides and foveate close to each eye ; base distinctly notched, the space in front of notch in the form of a wide elevated A. Antennae moderately thin, just passing base of prothorax, first joint very little larger than 52 Arthur M. Lea: second, second slig'hth^ larjjrer thiin third, third to tenth small, the ninth and tenth slijjhtly larjjer than the eijrhth, but not forming part of a club, eleventh ov;vte, slio-htl}' lonp:er than ninth and tenth combined, its apex acute. Palpi very small. Prothorar as long as wide, moderately convex ; sides strontrly rimnded, base much narrower than apex ; near base with a strong bisinuous impression, somewhat expanded in middle and terminated at each side in a strong fovea ; median line short and feeble ; punctures very indistinct. Elytra about as long as wide, base wider than prothorax, sides feebly dilated posteriorly, apex incurved to middle ; sutural stria on each narrow and commencing in a very small fovea, the dorsal represented hy a distinct impression at base only : punctures very indistinct. Ah- domen the width of elytra and somewhat longer, rather strongly convex on upper surface, and slightly flattened along middle of lower surface ; apical segment with a median impression. Metasternum depressed along middle of apical half, /^er/.s moderately long ; hind trochanters obtusely dentate. Length 1| - 2 mm. Hah. — Tasmania : Chudleigh. Kindred, Dunorlan, from nests of I ridomyrmex glaher. In appearance fairly close to the preceding species, bub larger, more brightly coloured, differently clothed, narrower and less depressed, punctures smaller, etc. From hrevice/ps it differs in being larger, narrower and more convex. In general appearance it is somewhat like Euplectops carhiatifrons and E. viUosns, but the median line of the prothorax is feeble and isolated. The base of the prothorax appears to be rather suddenly narrowed, ar.d the sides in front of the lateral foveae appear to be almost tuber- culate ; the median line is shallow and scarcely visible from some directions, and is traceable neither to the apex, nor to the subbasal impression, but it is somewhat variable individually. The five speci- mens before me appear to be all males. M exopldUm, two species. Mr. C. Gibbons took a specimen of this genus in a wild nest of the domesticated bee near Sydney ; it is unfortunately a female, so is not now described. Another female of the same species, also from Sydney, is in the Macleay Museuu). Mr. H. W. Cox took a specimen of an allied species, also unfor- timately a female, from a nest of Stenamma lonyiceps. Limoiiiatfx rampniuiti. n.sji. Pale castaneous, abdomen silightly darker, a))pendagcs flavous. Very finely pubescent. Aitstrcdlan ami Tasiiianhtii Coleoptera. 53 Head moderately transverse, notched in middle of base ; each side with a strong oblique groove, the two meeting, in front. Eyes moder- ately prominent. Antenmie not extending to base of prothorax ; basal joint fairly stout, third to eighth rather small, ninth and tenth rather small, but forming part of elul). eleventh subnvate, as long as three preceding combined. /'rafhorf/ r moderately transverse, depressed, widest at about apical third, each side near base with a strong curved impression, the two meeting in middle, their junction subfoveate ; each side with a longitudinal impression, invisible from above, dis- tinct towards base, but disappearing before apex. El jftra subquadrate, shoulders slightly raised ; base with a few small foveae ; dorsal striae scarcely traceable beyond base ; punctures minute. Abdomen as wide as elytra, and slightly longer ; parallel-sided to near a]>ex. 1^*'ii uiuiaiiu'd siifciuieus of this siteeies for examination ; l)iit they certainly iielonyr to I'asroeus. In the male the fovea nn the u])iier surface of the ahdomei; is |iroflucerl ))aek- waids at the middle, Imt is inoie or le-s rounded, in the female it is subangularly produced backwards. Tlie species is very close to Masfcrsi. and I am unable to define any character to distinguish the females. JJut the males differ in the front of the prosternum ; this beiu'jf armed in Mastersi, and umirnied in Pasroeus. * A rf ic< Ills (I I lit I [Hs, Lea. Mr. 11. II. 1). (Jriflith has taken, at Adthiide, nine specimens of this species in nests of a small ant. The female (previously unknown) differs from the male in having- the metasternum regularly convex ana unarmed, the abdumeu convex on under surface, and the legs thinner and unarmed. *Arfirf'ri/s I ripynliiris, Lea. A male before me, taken at Glenfield, from a nest of Iridomyrmex i/rdrilis, appears to represent a variety of this species. It differs from the type in being slig:htly smaller, in the fovea of the under surface of abdomen nmch smaller and deeper in proportion, and the subbasal impression on each surface of the antennae less noticeable. Mr. H. W. Davey has recently obtained a female at Geeloug. It differs from the male in having the under surface of abdomen and the metasternum regularly convex, and its legs unarmed. Tlie lo[i sided- ness of the antennae is also less pronounced, although cjuite distinct. *Arfiri'nis constrict i.cornin, Lea. The male has the under surface of abdomen with a wide shallow depression towards the base, and the tibiae more iniiated towards the apex. llab. — Xew South W ales : Kopcr Creek. Articrrwi cijluidncorni-^, liati'r. A. rijhirdrtcnnus, Lea, n.pr. M. KaftVays name was puljlished in 1909, consequently his paper was not included in the Zoological Record by the time my own name was published (191(J). There is no need to change my name, how- ever, as the species is the same as M. Uatt'rays, and his specimens were almost certainly taken by Mr. Goudie, from whom I also first received it. 56 Artlmr M. Lea : *Articerns ciirincoriiis, Westw. lieceutl}' iiiken near Sydney fnini nests of Iridomyrme,!- ruj'onujer. *C'lavi(/eropsis Austrcdine, Lea. A second female of this species was taken under a stone, from a nest of Iridoinyriutr yrarilix at the side of the George's River at Glenfield (New South Wales). Mr. Cox has also taken the species in the Illawarra district. And there is a specimen in the British Museum labelled as from Queensland. Palssidae. * Antltrcyplerutt hir,vi$, Westw. Kecently taken from nests of ('(iiii poiiotiis aeneopi/osiis and of Ectatoiitina inctaUicii in. SCYUMAENIDAE. Sri/diiiacnus i/npdi'idu'i, n.sp. Bright castaiieous, head and jjrothorax somewhat darker than else- where, palpi and tarsi fiavous. Upper surface glabrous except for some sparse clothing at sides of prothorax and a fascicle on each side of base of head. Head moderately transverse, not bilobed between antennae. Eyes very small and not prominent. Antennae rather long and thin, second joint longer than third, seventh slightly longer than sixth ; club four-jointed, eighth joint not much longer, but about twice the width of seventh. Protliora r slightly longer than wide ; base with three shallow foveate impressions, all connected by a shallow depres- sion. Eh/tra at base no wider than base of prothorax, somewhat ol)li(luely dilated to the middle (where the width is twice that of the prothorax), thence rounded to apex. Li'ys rather long and thin; hind coxae rather distant. Length 1^' mm. H(d). — South Australia: Port Lincoln (J. J. Walker). The type was given to me by Mr. C. French, as having been taken by Commander Walker, from- the nest of a short, thick, stinging ant.i The antennae are rather longer than in the following species, and in others liaving the elytra glabrous, the size is larger, and the elytra are more strongly narrowed to the base, so that their middle is aVjout twice the width of their base. On close examination a few minute setae may be seen towards the base of the elytra, but they are so few and indistinct that I think the elytra could cpiite fairly be regarded as glabrous. 1 A sample of the tint did not uoconipan,>' the beetle. AitHtraliitn diul Tdsnm h nm C (ihiipfcni. 57 I have not described the elytral immturLS of this and of all the loll()\vin' ; jirotliorax rather sparsely elothed, even at the sides, middle of disc <^lal)rous ; head sparsely clothed, the fascicle on each side of base small and loosely composed. Head lightly transverse, feehly impressed between antennae. Eyes .small and prominent. Antennae thin and moderately long ; club rather indistinctly four-jointed. I'rotliorax slightly longer than wide, more convex than usual ; with two small foveae near base, and some distinct punctures almost at extreme base ; each side with a strong oblique impression, which is invisible from above. Elf/t a moderately long, at extreme base no wider than prothorax, sides obliquely dilated to near the middle, and then rounded to apex. ^^f'[/'^ rather long; hind coxae moderately separated. Lcngtli, l.\ mm. N(/b. — New South Wales: Sydney (Macleay Musemu). tioni nests of I'oiK^ra hitta and of StfiKtiii nui loiujirfps (A. M. I^ea). In size and general ap}iearance fairly close to /'(i/rn/i//ffsis, l)ut anteimae dcL'idedly thinner, jjrothorax with ditt'eient inqnessions, and no darker than elytra, the latter rather narrower at base, and with shorter clothing. ('oh)J)(>i»'if> is about the same size, but is flatter, wider, and with the sides of the prothorax very differently clothed. Ectatoinniae is dingier, with the club stouter, and elytra nmch more sparsely clothed. Diipliratns is slightly smaller, more sparsely clothed, and with the eighth joint of antennae larger, in })roportion, then the seventh. Micro p^, also occurring with Ponera lutea, has much smaller eyes, and is otherwise different. The eighth joint of the antennae is about midway in width between the seventh and ninth, and is slightly shorter than the ninth, so that while it appears best to regard it as belonging to the club, this might almost fairly be regarded as three-jointed, or at least with the joints of su'bcontinuous width. The seventh is almost exactly the shape of the sixth ; the eleventh is about as long as the two preceding combined. The pirothoracic foveae are feebly connected with the lateral inqjressions, but are conq)letely isolated from each other. Scattered aljout the extreme base are some large punctures, a few of which might almost be regarded as small foveae. A specimen given to me by Mr. Cox, and taken l)y him in the Illawarra district, from a nest of Sttninnnia lonyiceps ditiers from the type in having the prothoracic foveae less conspicuous (from some directions they appear to be altogether absent), the elytral clothing decumbent, and the antennae somewhat stouter. (^)uite possibly, how- ever, it represents a new species. Sci/i/i/K/f'ii-iis nisniiiiniitrix. n.sp. c?- Black; base of protliorax and the elytra (suture widely in- fuscated) castaneous, antennae somewhat paler ; legs almost, the tarsi and palpi quite davous. Elytra with sparse and moderately A Ltsfralum und Tdsum iiyti h (.'olcopffm. 59 long stramineous hairs ; clothing on head and prothorax someAvhat shorter and darker, on the latter becoming dense on sides, and on the former forming a feeble fascicle on each side of base. Head (excluding neck) distinctly transverse, flattened between antennae. Eyes of moderate size and very prominent. Antennae lung and thin ; club four-jointed. I'rothnran slightly wider than long ; base with a strong transverse impression, with a foveate ex- pansion at each end. Elytra modeiately long, somewhat depressed, base slightly wider than prothorax, sides evenly rounded and widest across middle. Abdomen with fourth segment conspicuously armed. Af//s moderately long; hind coxae rather distant; femora stout, especially the fnmt pair. Length Ij mm. Hah.- — Tasmania : Devonport, from a nest of Ectatoini/ia iiictal- licuin, Stanley, in tussocks at summit of ■" Nut "' (A. M. Lea). The type has its neck exposed, and this is seen to be castaneous. The antennae at a glance appear to have the joints subcontinuous in width, but the seventh, although distinctly longer and wider than the sixth, is less than half-way in width between that joint and the eighth ; the eleventh is not much shorter than the ninth and tenth combined. The prothorax has two rather large transverse foveae, connected together by a short impression, but they could quite fairly be regarded as expanded portions of the impression. Each side also is obliquely imj^ressed, but the impression is invisible from above, and, as in many other species, is more or less obscured by clothing. The fourth segment of the abdomen, towards each side, has a long, and somewhat obtuse, reddish tooth, projecting backwards at an angle of about 45 degrees ; each is about half the length of the hind tibiae, and the two are connected basally by a semitransparent, mem- ijranous tiaj), that is thickened in the middle, causing an appearance as of a much smaller median tooth. *Scydrnaenus (jlabripennis, Lea. There are two specimens of this species in the Macleay Museum fiom the Tweed River, and five in my own from the Clarence.! *Scydmaenus colobojjsis, Lea. Recently taken from nests of Amhlyopone. auatralis. A specimen from Dunorlan. from a nest of the original ant, differs from the tyj>es in being considerably darker, almost piceous. A specimen from an unnoted ants" nest at Sea Lake- sent by Mr. Goudie, differs from the types in having the impression at base of prothorax narrower across the middle, but I can find no other dis- tinctions. 1 Now first recorded from the mainland. 2 Now first recorded from the UKiinland. 60 Arthur M. Lea : *Sci/d/iiaeni(s ca.stdfieoyJdber, Lea. Dr. Ferguson has taken a specimen of this species on the Blue Mountains^ from a nest of Ertatoiiinia iiiftdlliruni. Its eyes, by their colour alone, are indistinguishable from the rest of the head, and the right club is almost black, the left being normal ; these, however, appear to be individual aberrations. *>Sri/d/tiafiiiII(i piisiJJd, King. In October, 1910, specimens of this species were taken trom nests of Ectatoinma mt^tdll tni m, Poiicra hit(< III i/riiicrdiih il IIS, n.sp. Bright castaneous, somcwluit darker about junction nf prothorax ana elytra. Upper surface with not very dense, l)ut almost evenly distributed pale pubescence. Head moderately long and convex. Eyes small, and latero-frontal, but not very prominent. Antennae rather long, passing middle coxae, eight basal points subcylindrical, the others forming a rather narrow club. Protldjrai: rather strongly convex, distinctly longer than wide, sides rather strongly rounded but becoming oblique towards base. Elytra more than twice the length of prothorax, not nmch wider at base, but fully twice as wide across middle ; sides rather strongly and ol)liquely dilated to near middle, and then rounded to apex. Lnjs long; hind coxae widely separated ; femora subclavate. Length '1 mm. Hah. — Tasmania: Marrawah, Latrobe, from nests of Aiiih/i/i>//(iiir austraHs (A. M. Lea) ; Victoria : Lai Lai. from nests of sauje species of ant (H. W. Davey). About the size of cariiiatiis, l)ut prothorax not carinated and tenth joint of antennae decidedly smaller. Longer, wider and more convex than iirdrilis and antennae longer. Also close to Sci/dinai inift opfafits (which is probal)ly a II etcrotjuathuH), but larger, with decidedly thicker antennae, which have the club three instead of two — jointed. The ninth joint of the antennae properly belongs to the club, although its l)ase is no wider than the apex nf tlic eight li, l)iit it is distinctly 1 Now flrst ruconlud from the iiiainliuid. 2 Now first recordud from the iiiainland. Aitsfraliii'ii (I'ikJ Tttsind hmi.ii Cnleoptrrn. 61 lonjror, witli the \\\w\ distinctly wider : \\\v tontli is about once and one-half the len<;th of the ninth, but at i)ase scarcely wider, althoufjjh increasinj^- in width to apex ; the eleventli is subeonical. al)out onee and one-half the lentrth of tenth and neai- l)ase slitrhtly wider. There are some very small ])unetures on the protlioi'ax and elytra, but thev are almost eoneealed by the elotliimi'. The ai)ieal sejrment of the abdoujen (on five specimens before nie, probaljly all males) is large, with its hind margin semicircular, so that the three preced- ing segments are conspicuously narrowed across their middle. The middle trochanters each have a small acute tooth, projecting inwards and slightly forwards, but owing to its position it is not easily seen. *FJiac/(}))(ij>ha/)a lati peihiiiK, Lea. There is a specimen of this species in the Macleay Museum from Rope's Creek, and Or. Ferguson has two from the Blue Mountains. 1 *]'}iaf/()/i(j/t/unio i/Kirrostufa, Lea. Two specimens from South Australia, in the Jiritish Museum, belong to this species but differ from the types in having the dark markings considerably reduced in intensity ; this, however, is a common varia- tion between Australian and Tasnianian specimens. A third from Victoria labelled ''Kin(/i?" in Dr. Sharp's writing also belongs to the same species and has the markings still more reduced. The species, apart froin markings, may be readily distin- guished from Kingi, by its femora beine much less clavate ; the clothing and antennae are also different. TRICflOl'TERYGIUAE. Ri)dir. CnLAMYDOrSIS. Of this remarkable genus sixteen species are now known to me, and seven others (including Orectosrelis) have lieen described. Species have now l)cen taken in all the Australian States, and it is probable Australian and Tafonanian (JoleojAtra. 63 that m«ny luore will yet be taken, as all are extremely rare. Formi- r'lrola was originally taken by the late Rev. R. L. Kinfr in nests of i'ciiii poinititx atneopi/osii.s ; Mr. Foggatt has taken it in nests of tl.e same ant, and I also have so taken it, but only one specimen, although dozens of nests of that ant were specially examined for the beetle. Mr. Davey has now taken eleven specimens of lonyipes in nests of ErtdtonniKt iiirlall irit iii . and Mi. H. TT. D. (rriffith and I have taken it in nests of the same species of ant at Port Lincoln. Recently I obtained another species, cdaininiiKif, with that ant, and Mr. Hacker has taken a specimen of (jUOira in company with it. Mr. Davey took three of tuherruhtta in nests of Iridomyrmex rufoniyer. and Mr. Gibbons one of epip/eural{f< with another species of Iridonnji m^x. Mr. Goudie, Mr. Davey and I have each taken (carbo, (jKinukda and pseudort'pbald respectively) a single specimen in nests of Fheidole. Ihe hosts of the other species are not recorded, but, as will be seen, the beetles occtir in the nests of at least four genera of ants, and they probably occur with others. They have also been taken from Atigust to January. Those known to me may be tabulated as follows: — A. Prothorax with a strong; double process in front. a. Process considerably overhanging- head - - carbo, Lea. aa. Process feebly overhanging head h. Elytra granulate but with very indistinct punctures .... - ijranvlnla, n. sp. />b. Elytra not granulate but with clearly defined punctures .... - p&eudocepJuda, n. sj). AA. Prothorax without such a process. B. Hiad legs fully twice the leugtli of tlie body - lomjipes. Lea. BB. Hind legs much shorter C. Prothorax with a very strong liiscal tubercle - titburrulnta, n. sp. CC. Prothorax without such a tubercle. D. Prothorax without narrowly upturneil margins c. Shining . . . - . glabra, Lea. CC. Opaque ... - - opaca, n. sp. DD. Prothorax, at least in front, with narrow upturned margins. E. Elytra without conspicuous striae on disc. d. Elytra with distinct punctures on disc .... variolosa. Lea. del. Elytra without such punctures. e. Prothorax with conspicuous net- like punctures - - - excavata. Lea. ee. Prothorax with feeble punctures at most ./'. Elytra tipped with rather long hairs - - - cavicollis, n.g. //. Elytra with sparse and very short Setae at tip - - formicicola. King. 64 Arfhtir M. Lm .- EK. Elytra with cfnispicuous striae on (Who. F. Prothorax with dense but rather small punctures ... epijjleuralis, n. s}>. FF. Prothorax with conspicuous net-like punctures. G. Elytra about scutellar region with a highly polished non-striated space. g. Clothing of epaulettes very short and almost hidden - sfcuifeWrt, Westw. (ig. Clothing of epaulettes very conspicuous - - - retimlata, Lea. GG. Elytra about scutellar region strongly striated. H. Such striae transverse - ertatommae, r\. siy. HH. Such striae curved - - latipennis, n. sp. Since the above table was prepared I hfive eixamined the four species described by the Rev. T. Bhickburn ;i they are all very sing^dar insects. Stfrnnlix. — This species belongs to the <4roup whose other members are rarho, f/raiMdata and p' parently an ovipositor) with two inner jirojei-tions, extruded from the tip of the abdomen. (lihinu/(ln psiti ravicollift, n.sp. Of a uniform dark chestnut-brown, with rather straggling stiff yellowish setae ; absent from greater portion of pronotum and depression and sides of elytra : near shoulders with conspicuous golden fascicles. Head between antennae about as long (to mouth parts) as Avide, flat, finely shagreened ; with small but distinct punctures. Antennae when at rest completely fitted into cavities. Frotliorar fully twice as wide as the sides are long, but along middle about one-third longer than sides ; these almost straight and strongly raised, front margin sinuous and strongly raised, but somewhat thinner than sides ; disc gently undulated and finely shagreened. Elytra decidedly wider than prothorax, apices widely and separately rounded ; near base with a wide, transverse, shining, irregular depression, which is continued to each side, where it emerges as a narrow curved slit, but is partly 6 66 Arfhtn- M. Lea: concealed by the fascicles ; al)()ut scutellar re*;ion with an obtuse elevation on each side, each shoulder from above appearing as a raised, narrow, curved epaulette, at its tip almost meeting a strong projection from the side ; ))et\veen each epaulette and the middle is a large obtusely tiiangula!' elevation, strongly elevated to its tip. In parts shagreened and towards apex with small (setiferous) granules. Epipleurae with dis.tinct striae converging to subhumeral slit, the upper parts polished and Avithout striae. Under surface shagreened and in places wdth irregular punctures. Prosternum with a narrow deep stria, commencing close to each coxa, and curved round so as to terminate at the extreme base at the shoulder. Metostn'uum with a narrow median line. Legs long and thin. Length 4^ mm. Hah. — ^New South Wales : Sydney (type in Macleay Museum). A large species very unlike any previously described ; the strongly raised prothoracic margins cause the disc to appear concave. The fascicles on each elytron are four in number, two are directed forwards and two backwards, so that they meet or irregularly cross at their tips : the outer are smaller than the inner ones, and each is separated from its fellow by a distinct gap. The legs are all longer than the entire body, the hind pair being the longest ; the tibiae are not strongly inflated or angular, but the front pair are somewhat dilated on each side of the tarsal groove. The front femora are too long to be received into the (rather shallow) prothoracic grooves. I have not attempted to manipulate the antennae of the type, as they are completely fitted into their receptacles ; the first joint appears large and about twice as long as its greatest width ; the club is only partly concealed, and apparently can be extruded even when the first joint is at rest. ('Jihitni/ihtpsis ertatnmmae, n.sp. Black ; appendages chestnut-red. With a few short pale stiff setae scattered about ; a small and somewhat golden fascicle or pubescent membrane overhanging each depression towards the base. Head somewhat rounded ; with large, round, shallow punctures or areolets. Antennae large, first joint with similar punctures or areolets to those of head, curved, its outer edge somewhat grooved, club subcylindrical, lightly curved, almost as large as first ; inter- mediate joints combined much shorter than first, or club. Prnthorar. moderately transverse, sides incurved to middle ; margins not nar- rowly elevate-d, but apex gently raised, disc convex ; with punctures or areolets as on head. Elytra about as long as wide; towards base with a large depression, which towards each side becomes vaulted and does not touch the sides, about base with a feeble elevation on each side ; shoulders raised into feeble epaulettes, each marked off A iisfni/itdi (IikI TiisiiiiinUin Colcoptera. 67 inwardlv hy an ohlicnu- iiii|iiessed line. Witli conspicuous lonjj:i- tudinal striae, except in depression, where they are transverse, and aliout shoulders, where they are somewhat irregular. Epip- leurao striated throuo-liout, the striae more or less con- verfrinor to a suhhuuieial space. Pro- and me.sosterini/n, base and sides of metasternum, parts of abdomen, py- and propygidium, and under surface of front legs, with sculpture as on head. Metasternun. with a narrow median line, /.rf/f: rather long ; tibiae strongly inflated, the inflated parts suddenly cut off towards the l)ase, so as to appear strongly angular. Length 2^ mm. ffah.~ 'New South Wales : Gladesville. near Sydney, from a nest ol Ectatoiinna nictdllinnn (A. M. Lea). A black species in general appearance close to striatella, but with conspicuous transverse striae about the scutellar region ; the epaulettes are also somewhat different. Tlie depression, instead of being continued to the epipleurae, as in some other species, terminates some distance from each side, in a large, deep cavity or fovea, above which is the small fascicle. The outer walls of the cavities for the antennae are very thin, and when looked down into appear of a rather light reddish brown ; from out- side, however, they a]>])ear almost black. Tlie front legs are entirely received into excavations, when tlieir siuljiture appears to be as that of the prosternum. CJifai/n/dd/ixix Idfipenuls, n.sp. Dark reddish Ijrown, in places almost black ; shoulders and appen- dages paler. With' very short, sparse and irregularly distributed setae ; subhumeral depressions with short, stiff, golden fascicles. Head and antennae much as in preceding species, except that the large punctures or areolets are somewhat larger, and that the club is slightly larger than the first joint. Prothdrax about twice as wide as long, sides gently incurved to middle and not raised, apex sinuous and distinctly raised, except in middle, where the elevation is but slight, disc strongly convex, but scarcely tuberculate in middle ; with punctures or areolets as dense as on head, but more oval in shape. Eh/tra slightly wider than long, sides gentlj^ rounded to- wards base with a large and (for the genus) rather shallow depres- sion, which towards each side becomes somewhat irregular. Shoulders each api)earing as a feeble epaulette, and marked off inwardly by a deep and almost straight line. Pro- and iiifsosternuin, and py- and propygidium with sculpture as on head, except that it is finer. Metasternum with a narrow median line, with large round punctures about middle, a row of punctures margining each middle coxa and fairly coarse punctures at sides ; elsewhere smooth and almost or quite 68 A, ■[/,,>,■ M. Lra : impunctate. Abdomen with irrerisc out the antennae, of w'hich only tlic large basal joint of each (which is somewhat curvilinearly triangular in shape) and the tip of tlic clul) is visible. I'he legs are comjiletely fitted into receptacles on tlic under surfiice, and these also were not jtrised out ; they are short and wide, the tarsi entirely lonrcalcd, the tibiae (as visible) slightly wider than the femora, curved outwardly and apjtarently not angular ; the tip of each of the hind femora just cuts into the elytral maririn. AitstnduDi iiiiil TasDijt iiian Coh'optera. 71 C/ihi/ni/c/oji^i" (/rnnnlaht,, ii.sj). (Fijr. 5.) Colour and clothinjr as in preceding species. Iltad with central portiim svibcircular, gently concave with distinct punctures. Basal joint of antennae large, triangularly dilated in middle, club elongate-ovate, about half the size of basal joint, the intervening ones small. I'rothorar as in preceding species, except that the frontal elevations are stouter, have their outlines more rounded, and that the excavation behind them is larger. Elytra as in preceding s|>ecies, except that the punctures are very small, and indistinct, and that the surface is granulated posteriorly, and sub- granulated elsewhere. Pro-sternum with punctures as on pronotunj, the middle deeply grooved. M ctasterninii with distinct but not very large punctures, the punctures becoming nuich smaller and somewhat <])arser on basal segment of abdomen. Tibi(/e strongly dilated, the iour front ones angular towards base, the others rounded. J>engtli, '2\ mm. Hah. — Victoria : Geelung, from a nest of a species of Pheidole (H. W. Davey). Closely allied to the preceding species but larger, elytra with scarcely visible punctures, the surface granulated, and punctures of metasternum and basal segment of abdomen not of even size and considerably smaller. It is possible that the specimen should be treated as representing a variety of the preceding species, rather than as distinct, but the differences in the elytral sculpture are so pro- nounced, that it appears best to regard the differences as specific. In some lights, vague remnants nf elytral striation are visible. Clilainydopsis opaca, n.sp. Black, opaque ; sides of jirothorax, sides of elytra at basal third, their epipleurae, abdomen and appendages of a more or less dingy red. Glai)rous. Head vertical, face slightly concave and with small punctures. Each basal joint of antennae about as large as exposed portion of head : somewhat triangular in shape, inner edge bisinuate. outer gently rounded, and upper notched. I'nithora i feebly convex, about twice as wide as long, margins not thickened and very feebly raised, outlines somewhat angular ; surface finely shagreened and with numer- ous small punctures. Elytra sul^quadrate, sides feebly undulated ; with a strong, narrow, transverse impression at apical fourth, with a narrow golden membrane on front edge of impression, occupying the median third of each elytron ; an obliipie line from each shoulder ahijjost to the membrane ; surface finely shagreened and with dense and rather coarse j^unctures, l)ecoming Hner at base, sides and apex } 72 Arthur M. Lea : epipleurae wtih dense minute punctures, and with fairly numerous larger ones. Prosternuni, smooth and shining in front, but elseAvhere shagreened. Metasternum shagreened and densely and finely punc- tate ; with a narrow median line. Ahdomeii highly polished except parts of the sides, and most of the middle of the basal segment, which is shagreened and with rather coarser punctures than on metasternum. Fnnura wide ; tibiae angularly dilated from base to basal third, and then rounded to apex, all wide, but the hind pair wider and less angular than the front pair. Length 4^^ mm. ^a&.— New South Wales : National Park (W. Du Boulay).i Closer to glabra than to any other desci-ibed species, but upper surface shagreened and opatpie, elytra with conspicuous punctures, the transverse subbasal impression narrower and njore ])arallel-sided, its dilated portion narrower, with a faint line running in from each shoulder (not a trace of this is in glabra) suggesting the position of the epaulettes of other species, epipleurae with conspicuous punctures and the under sui'face opaque, except front of prosternuni and most of abdomen. The outlines as given for glabra, however, are exactly as in this species. Tlie type has the head completely retracted within the prothoracic cavity, and, fearing injury, no attempt was made to force it out. *Chlainyd()psis formicirula, King. *€'. striatella, Westw. *C'. inquilina, Lewis. Mr. Lewis recently wrote to me of these species: — " C. forinicicola, King, differs from striatella, Westw., by being darker! in colour, less quadrate in form (the elytra being longer), by the thorax being acutely angulate at the anterior angles, and the surface is less opaque and less distinctly granulate, by the elytra having the two elevations behind the scutellum much less oljliipie and somewhat acutely pointed at their ends. Tlie elevations in ■striatella are somewhat short, distinctly divided in the middle, oblitjue, and end on each side obtusely. '". inquilina diti'ers from both species by being nitid, and the thorax is much less transverse, and is parallel laterally, the edges in front and at the sides being uniformly and more strongly elevated, the elytra also have the elevations behind the scutellum ])erfectly transverse, not ol)li(|ue, and they are longer and acute at the ends, and there is scarcely any discernible median partition. The legs of inquilina are iiwjre robust, a character 1 A son of the 1>U Bouhiy ulio took llio lirst iloscribfil spefifs ot the ini'inis. 1 This is evidently an error, as /'intiiricota is more or less reddish, and slrinlflla was described as i)ioeoiisl)lack. My own specimen of ulrialella, from ihe type locality (.Swan Ki\ tr), is considerably darker than the type of fiirmicicola ; but as Mr. Lewis wrote that his specimen of striatella was from New South Wales, it seems jiossible that his identification of that species was not correct. Australian and Tomininiaii ('ohoptera . 73 especially obvious at the bases of tlie tibiae and the iiiediaii angles of the tibiae are all less aeiite. My speeiiuens of iiKiuilliid and striatel/a are from Liverpool, Xew South V\'aks. I think that the elevations on the elytra behind the seutelhun are likely to afford good specitic characters should many more species be brought to light." *( 'lihiiin/dniisis hnKjipcx, Jjca. Of this species, Mr. Davey recently wrote to me: — ■■ I made a tine haiil of C loiaji pen the other day, took three in the one nest under a stone, one a small specimen, and tAvo large ones ; you might not think it (judging by their legs), but my experi- ence is that they are very ditticult to spot, they seem to favour nests l)uilt under pieces of ironstone, and when they are at rest with their legs all tucked a.way, they have a remarkable likeness to the nodules on this stone, and all I have taken have ahvays been on ironstone with the green ants."i Mr. Davey has taken the species at Ararat, a fresh locality. *(' l(J(nii!jd()p>e covered with regular rows of large punctures ; but from others these are seen to be watery-looking marks only, such 76 Arthur M. Lea: as occur in many specimens of Cordus hospes ; from most directions they are invisible. The head in front of the antennae is quite in- visible from above, is strongly sculptured, and (in the type) has the n)andibles resting between the front coxae. In general appearance close to Di/jlorofe.s H owiftdiiiK. \mx antennae nine-jointed only. Westwood regarded BipJocotes as distinct from Polif plorotex on account of the typical species having the antennae eleven-jointed ; but two species of the former genus are now known to have ten-jointed antennae ; and so, later on, it will i)rnbably be considered advisable to unite the two genera, and to regard the species having nine, ten or eleven jointed antennae, as l)elonging to sections only. ['((KKxaptimis (lol uhoiiiiiitlnis, n.^p. Castaneous, knees slightly infus'jated. Very spavsely pubescent ; l)ut sterna between coxae with dense, whitish pubescence. Head a])out thrice as wide as long, front gently l>isinuate ; with dense, partially concealed punctures. Eyes prominent and apparently acute. Mouth parts jn-oduced so as to appear like a tbittened rostrum. Antennae large and wide, their bases almost touching ; first joint large, its front edge strongly curved, second very small and quite concealed from above, third to ninth each nnich wider than long, the joints slightly increasing in size to ninth, tenth about as long as eighth and ninth combined, its apical edge incurved to middle. Palpi concealed. I'rutliorar slightly longer than wide ; base wider than apex, sides dilated to basal third (but not dentate), then nar- rowed to near base, and then dilated to base; across basal third strongly impressed, the impression slightly dilated in middle, but not foveate, densely, conspicuously and more or less longitudinally strigose. Ehjtra su'bovate, strongly convex ; ba.se narrow and with eight small foveae ; feebly striated, the interstices finely strigose, and with scarcely visible fiattened granules. Ltga rather long and fiat- tened. Length 'i\ mm. Hah. — C. Australia: Killalpanima (Rev. H. J. Hillier). The type and only specimen known to me has been returned to the British Museum It differs from hifiroriiis in having the antennae with one joint less, the apical joint much larger and of ditt'erent shape, mouth almost rtistrate, piothorax dift'ereiitly impressed and unarmed, etc. BrtvipfiNiis (unknown to niej is described at having the antennal joints differently proportioned, the prothorax with a profound basal fovea, and its sides tridentate, ett-. Looking straight at the face below llic antc-nnae, there ap])ears to be an acute ridge on each side marking otf a strong depression; in the middle is an acute, narrow il-sliaped elevation, with a small Australian and Tasmaniaii. (JuleoiJtera, 77 tuhercle between its tips. Then tlie mandibles commence; they are very curiously shaped, truncated at apex, with their tips crossinfr. The whole of the projecting parts are rather more than two-tifths of the total depth of the head. Tenebrionidae. Ilyocis ranre/hita. Lea. Mr. Davey has taken a specimen of this species from a nest of /V/^/V/o/c, sp. Jlyocis niyru, Blackb. In examining the contents of the nest of a mound building species of Iridomyrmer at Ulverstone I obtained nine specimens of this species.^ CardlotJiorar aeripennis, Blackb. Recently at Otford Mr. Cox obtained two specimens of this species, singly, fronj nests of Sttnamma loiiyiceps ; and I obtained two from another nest of the same kind of ant. Lagkiidae. *L(u/ria foriuiricola, Lea. Dr. Ferguson informs me that he has taken and seen numerous specimens of this species in nests of Pti/iera hifea : in several nests there were at least 20 specimens of the beetles. Xyloi'hilidae. XylophiJ lis (il })ic(i1(t, Blackb. Three specimens obtained fnmi nests, near Sydney, of Poiifnt Jntea. Brenthidae. *Cordu!( hoxpe-'i. Germ. (Fig. 7.) In October, 1910, in examining some nests of Irido/iiyntier iiifldu'< at Glenfield (New South Wales), I saw thousands of specimens of this beetle. In parts of the nests they were clustered so thickly together, that from a space, a square inch in extent, several dozens could have been taken. The ants moved freely about them without in any way interfering with them. The beetle also occurs in nests of Steiiamma lonyircps and of Iridotuyiine r ifnieratis. 1 Xow first i-ecorded (roin Tasmania. 78 Art/nir M. Lea: (hlcoptevd. CoCCINELLIDAE. Ehhohius Jiirtelliis, Crotch. A specimen of this species was taken near Hol)art from a nest of Iridomyrmex fflaber, where it was feeding on mealy bugs {Dacty- lopius, sp.). EXPLANATION OF PLATE IL Fig. L Philophhieus myrmecojjhilus, Lea. 2. Daveyia mira, Lea. ?>. Daveyia mira. Lea, palpus. 4. Rodwayia orientalis, Lea. 5. Chlamydopsis granulata, Lea. 6. Brachypephis inquilimis. Lea. 7. Cordus hospes, Germ. IVoe. K.S. Yietorin. 1!II2. Plato Tl. [Proc. Uot. Hoc. Vktokia. 25 (N.S.). I'r. I.. li»12j. Akt. V. — On a new Holothiiriau of the Genus Taenlogyrus found III Port Pliillip Bay. Bv K. C JOSHUA. (With Platf>s \U. .111.1 lY). [Read llth April. 1912]. Tacnioifyrus alln.ni, sp, nov. The L'hiridntinid of which a description follows was first dredged by Mr. J. M. Allan, near Geelonp:. and was subsequently found by myself near Willianistown. Descri ptioii. — Tentacles ten, peltato-digitate, pigment spots at base. Size. — 8 centimetres in length, breadth about 6 mm. Colour. — Carmine in life, in spirits white. Calcareous deposits, consisting of wlieels, sigmoid bodies, and rods. The wheels are principally confined to the three dorsal interambulacra and are grouped in round and irregularly-shaped papillae, except at the anterior and jw-terior ends, where tl.tv are thickly disposed all round the body. They haA'e six spokes connecting with a peripherally hexagonal rim, the inner margin of which consists of alternate serrated convexities and unserrated smaller concavities. One side of the hub of the wheel is closed by a six-rayed plug, the other is open and sur- rounded V)y a dentated margin. The sigmoid bodies are scattered singly at fairly regular intervals and roughly at right angles to the axis of the body ; they occur equally in all the interaml)ulacra. The rods are confined to the margins of the tentacles and to the inter- tentacidar web. Habitat. — On nuid banks, in from f) to 10 fathoms, Port Phillip Bay. AiKitonnj. —Genital glands : Two, single, unbranched, sexes separate. Alimentary canal : Contorted axially. Polian vessel : Single. Stone canal : Ap|)arently absent. Calcareous ring: Consisting of ten pieces. Two mounted specimens of an animal, which Mr. Allan declares to be identical with the present species, were sent l)y that gentleman to the President of the Royal Microscopical Society, London, who in turn submitted one of them to Professors R. Koehler and C. Vaney of Lyons. Prof. Vaney identified the specimen as Trorhodota 80 E. a. Joshua : (luiifdineiisis, Purker (1). In NovenilxM-, 1910, I was fortunate enough to obtain a number of specimens of the same animal near Williamstown, and a careful exiimination convinced me that I was dealing with a different species from the above-mentioned. The accepted classification of the sub-family Oiirididinae, to which both dunedinensix and the present species belong, is that of Ostergren (2), who bases his arrangement on the presence or absence of cal- careous deposits, and their disposition in the integument. Hubert Lyman Clark (3) in his monograph on the Apodous Holothurians gives a key to the genera and species comprised in the sub-family, and adopting a suggestion of Semper's (4), he establishes the genus Tneni- ogyrus to include those forms in which the wheel ossicles are collected in papillae ; the genus Trochodnta, Ludwig, being characterised by the wheels being scattered singly. The present species has the wheels definitely aggregated, and could not therefore be placed in the genus Trochodota, therefore further to consider its identity with T. duiie- di/ien-^i-'i is perhaps superfluous ; it may, however, be pointed out that a comparison of the description and figures of the wheels of dune- dinen>ils with that given by myself of that of the present species, shows marked variation. T. allani further differs in having but two genital tubes, as opposed to several in T. diine.dinensis ; and in hav- ing a contorted alimentary canal as opposed to the straight one of Parker's species. Its differentiation from its congener Austral iana, Stinipson (G), ;ind T. contorta, Ludwig, is fairly definite, and is ren- dered easier in the case of the former from the fact of the species having been revicAved by Clark (3). We have unfortunately no description of the wheel of Australiaiut. but as regards the dis- tribution of the sigmoid ossicles, Clark confirms Stimpson's origina) observation, that they are in definite papillae ; in T. allani they are invariably scattered. The genital tubes of T. Australiana are dis- tinctly branched; in T. allani they are unbranched ; size, colour and habitat are also different. F'rom T. ro/itnrfa, it differs in the structure of the wheel ossicle. I am relying on Theel's (7) figure for this, as I could not get access to Ludwig's original pii])er. T. ronfurfa has twelve tentacles. T. allani ten ; 7'. ninforta has branched genital glands, T. allani un- brunched. T. runtorta is viviparous (8), and though I have opened many specimens of 7'. allani, \ have been unable to note this peculiarity in it. Although I have pointed out above the error of Professor Vaney's diagnosis, 1 think it but fair lo state that I think it was almost certainly due to the f;u't that he was furnished with an incomplete specimen; the slide Mibniittcd t-ontained in reality only about 2 cm. of the anterior end of the animal. In this portion the aggregation of the ossicles into papillae is not definite, and unless the wheels were Pnic. K.S Viotoria, 1912. I'l.itc III. r^ Wf^ vy^ I'nu'. R.S. Virtwrin. 1012. I'lnt.' TV New ffolollni rinH (if lite Gcaiis T(a'ii(0(j!/ras. 81 closelv examined, their diflference in structure from that of 7\ diine- (liiieiisls mi'/lit not l)e detected. Even if noted, it mi^ — Abnornnil wheel ossicles. Actual size, .18 mm. 11 — Calcareous ring. Enlarged. [Pkoc. Koy. Soc. Victoria, 25 (N.S.) Pt. I., ]912.] Art. VI. —The Occurrence and Development of Cerriral RiJ)S la Mdii (1)1(1 some of the McDiimals tlmt liove ahdiuioned Qi((i(lrupc(hd Pro'onp;s and man. (b) Complete in the sternal cervical ribs of the manatee and in the occasional sternal cervical ril)S of man. Function of Ribs. Ribs are stiff and resilient. The uses to which these (jualities are put by the animal economy constitute the functions of ribs. Fish-ribs stiffen the l)ody and protect viscera, but they possess no respiratory function. In the chameleons, the sphenodon, and other lizards possessing a low grade of neck development, cervical ribs are continuous with the ribs of the body-cavit}', their function being to protect viscera and to assist respiration. In snakes the cervical ribs are greatly developed and their function is locomotory. The cervical rib-stumps of the crocodile afford muscular attachments, and they confer some degree of rigidity upon the neck. The costal processes of mammals are too small to interfere with the freedom of the movement of the neck, and they serve merely for muscular attachments. The nuiin function of the thoracic ribs is associated with respiration, and the rib development that occasionally taKes place in the mammalian neck is also intimately associated with the lungs. Therefore Cervical Ribs of Mammals are of Respiratory Function. Cervical ribs have been variously described: — Keen, in 1907, re- ferred to them as "" congenital anomalies " ; Andrews, in Keen's Sur- gery, calls tliem "' deformities." Purves Stewart records that Oppen- heim regards cervical ribs in the human neck as the '' stigmata of degeneration." Here and there cervical ribs are regarded as examples of atavism, but the majority of medical men regard them as vestiges. The term " congenital anomaly " can only be used in a very re- stricted sense because science cannot regard any natural condition as anomalous. The word ' deformity "' conveys no idea as to what causes the development of cervical ribs. The expression '' stigmata of 84 Wdlter Staj)ley : de;jreneration " throws no light on the cause of cervical ribs, but as the development of cervical ribs in uianinials is associated with degenerative changes in the neck, the term is useful. Considerable confusion seems to exist about vestiges and cervical ribs. It is as well to preface the remarks on this subject by quota- tions from Morris's Human Anatomy and Arthur Keith's Huuum Embryology and Mor])holog}'. Morris says: — "The costo-transverse foramen is very characteristic of a cervical vertebra. It is bounded internally by the pedicle, pos- teriorly by the transverse process?, which corresponds to the trans- verse process of a thoracic vertebra, anteriorly by the costal process, which corresponds to the rib in the thoracic vertebra, and externally by the costo-transverse lamella. '■ Tlie transverse process (of the seventh cervical vertebra) is mas- sive ; the costal element of the process is very small, but, on the other hand, the posterior or vertebral part of the process is large, and becoming nioie like the transverse process of a dorsal vertebra. The costo-transverse foramen is the smallest of the series and may be absent. Occasionally the costal process is segmented off and con- stitutes a cervical rib.'' Keith says: — "Vestigial Ribs: Although the ribs are only fully developed in the dorsal region, yet a representative, a costal element, is present in every vertebra." " The costal process of the seventh cervical, usually represented by a mere vestige, may develop into a rudimentary or even a fully formed rib." It is difficult to accept this teaching of Keith, because it contains an error somewhat akin to the exploded idea that cranial bones are modified vertebrae, for he confuses the costal process, which is a reduced rib, with the costal rudiment, from which all ribs must develop. The formation of costal processes is shown in the monotremes : there, in the PlatypuK, the rib-stumps are separated from the verte- brae by joints, but in the Echidna these joints are more or less indistinct and the ril) tissue is l)econiing confluent with the neck bones. In the higher mammals these joints have entirely disappeared and the suppressed ribs remain as costal processes or rib vestiges. Costal processes are ve.stiges of ribs because they mark the remains of pre-existing cervical ribs. Mannnalian cervical ribs are develop- ments because they appear in positions which have been occupied cither by ribs that have become extinct, or by costal processes, ribs that have become vestigial. Cervical ribs are developed ribs, and the development varies from slight to full. A developing, or a developed, structure is not a vestige, nor is a vestige a rudiment, nor Cervlod Ribs in Men. 85 is the costal jjrocess the costal rudiiuciit. The term " costal element " that is frecjiiently used, can ret'ei' to but one thin^', and that one l.iin<; is the costal rud;)iieiit. t'loin whirli all I'il) tissue, suppressed and developed, must arise. Costal processes express suppression, by hostile movement, of rib tissue ; cervical ribs express rib development over lun;j^ tissue that has miurated into the neck. If cervical ribs be developed costal processes, as Keith claims, cer- vical I'ibs should be devoid of joints and appear as buttresses of bone fused with the transverse process and body of the vertebra, even when quite small cervical ribs are jointed. The difference between costal processes (vestigial ribs) and cervical ribs is the difference between supj)re.-sion and develo)>ment. The edal gait,. notal)ly man and sirenia, cervical rib develojmient may he traced from small undeveloped cervical ribs that appear only occasionally in the dugfing, to fully formed cervical ribs that occur constantly in (he manatee. ,Thc point of greatest interest in relation tn maanmaliau cervical rib.s is the seventh cervical vertebra ; a careful study of this bone shows that ribs undergo not oidy sujiprcssion, but that they also undergo extinction, for when the seventh cervical vertebra is without costal jM-ocesses, il is evident tliat the rilt vestiges have disappeared and that the ribs, which in an earlier stage of evolution belonged to this bone, have become extinct. Cervlcul HIb'S in M-ck ribs and formed rib-vesti^es, or to those that have broujflit about the extinction of rib. Daiwin did not fully urasj) the relationship ihat exists between or<::ans. structures and >pe;-ies. It is apparent that structures and organs form the parts of the species ; and it follows that that which applies to the whole nuist ajiply to the part. Species are admitted to suffer extinction through hostile influences, and therefore it must also be admitted that structures and organs may likewise suffer extinction by the same means. Bland-Button wrote: — "Much that is fancifid and speculative is mixed uj) with the subject of atavism." and a study of neck ribs compels the endorseujent of this remark, for it is a fanciful idea that regards mamnuilian cervical ribs as atavistic to the ribs in the neck area of fish. Mammalian cervical ribs develop in association with respiration, tish ribs are unassociated with lung, therefore mamnuilian neck ribs and ribs in the neck-area of tish are not teleologically related, for they are each utilised for a ditt'erent purpose. It will be shown that cervical ribs are late developments in the mammalian neck, which developnu^nt is due to the impulses that are occasioned by the en- croachment of lung into the neck. The costo-transverse foramen is absent from the seventh vertebra in most tpuidrupedal mannnals that have well defined neck curves ; j'.nd usually associated with the alisence of this foramen is the lack of costal processes. The absence of costal processes from this bone would appear to be determined by the fact that their presence would hamper the range of what in quadrupedal aniujals is an extensive neck movement occurring in this position. The seventh neck bone of such animals has been submitted to extinction of its rib vestiges by the hostile effect of neck Hexion upon a thoracic base that has been made firm by the lateral pressure of the weight of the body. Occasionally in true quadrupeds, the costal processes on the seventh cervical ver- tebra are not suppressed oi! both sides. We have found this abnor- mality in the racehorse " Traquair," and Dr. Dodd, of the Sydney University, writes me that he also has a specimen of the same ab- normality, that is, the costal process of the sixth neck bone is sup- pressed on the same side as it is developed on the seventh. Sisson, 88 Walter Shipleji : Veterinary Anatomy, jjage 33, records similar abnormalities. This change of position of the costal process is clearly compensatory, and it is probably due to the impulses that cause these horses to lead off the gallop from the same foot. The extinction of the costal processes from the seventh vertebra by the flexion of the neck seems to clear up the point which puzzled Darwin, how structure may become extinct. The costal processes of the seventh neck bone disappear before hostile conditions that are sufficiently hostile to suppress them to extinction. We have evidence that the costal processes of the seventh vertebra are suppressed to extinction by the flexion of the neck ; and this fact shows a reason for the extinction of definite structure and it goes to prove that structures and species are controlled by the same law. If it be admitted that species and structures are controlled by the same law, it follows that cervical ribs in mammals represent a new type of rib situated in the same positions as ribs that have suffered extinction ; and, therefore, they are not atavistic structures but new developments. If it be admitted that niannimlian cervical ril)s are atavisms, then it must be admitted that extinction of rib-structure is a throw-back to the invertebrates. A brief account of some of the hostile influences that have assailed ceiwical ribs, reduced them to vestiges, and finally caused their ex tinction will be dealt with in the body of this paper. Impulses. Smith- Woodward writes thus (Ann. Nat. Hist, xviii., 190G, page 312): — " Throughout the evolution of the organic world there has been a succession of impulses, each introducing not only a higher state of life, but also fixing some essential characters that have been variable in the grade immediately below." From this quotation it does not sccui clear what an impulse is. Does it represent the action of environment on the organism, or the reaction of living tissues to external conditions from which results the generation of impulses] These two things are \ery ditiereiii ; one ignores the re-aetioii of tissues and the other regards it as an essential factor. In dealing with neck tissues it seems impossible to ignore the biological factor and to cx|ilain the evolution of the neck by physical conditions alone. Vov instance, there is a general belief that " continued pressure causes atrophy, and inttiriuitleiit pressure hypertrophy,' and yet the necks of porpoises and whales that are submitted to intermittent pressure show atrophic changes. ThL\se neck tissues react to the impulses which the biological factor in reaction with external conditions generates. Cervical Rihs in Man. 89 In this paper it will be assumed that the evolution of the ueck is controlled by impulses that are generated by the reaction of the tissues to external e-hcmical and physical conditions. These im- pulses determine chanoe and stability in animal tissues and under their influence it will be shown that tixed-type may be destroyed and new tissues arise. The Evolution of the Neck. Mammalian nei'k evolution may be studied in 'lie Sr/nidpjjcr, Ctu- todus, Trarhyidnrns riit/oxii'^, Variniu.< no-'titx^ CrocodilKi, FhilDiins.^ Echidna and .Uammn/ia. In uumy fish dorsal and ventral ribs occur ; the former extend between the nuiscles and the latter stiffen the walls of the body- cavity. Some seem to use the words dorsal and ventral to the parts of a mammalian rib, the rib proper l)einu termed the dorsal rib and the costal cartilage the ventral ; this use is still more commonly adopted in desiribing' avian ribs. There also seems to be an ill- defined tendency on the part of some writers to assign to vertebrae the power of laying- down ribs. As all the bones of the body are formed in response to impulses it follows that vertebrae and ribs come alike under the influence of the impulse. As the body requires ncAv bone, fresh centres of ossification undoubtedly develop ; and, as movement becomes necessary, joints appear. In the schnapper and haddock the heart occupies a position in the gill-area, and ribs are in the area that ultimately in reptiles, birds and mammals becomes the neck. Fish are neckless, a state which is marked by ribs extending to the head. Fish are propelled by the thrust of the tail and this force is transmitted through the body mainly by the vertebrae, but the ribs serve to stiffen the body and thus to prevent loss of propelling power. The neck is formed l)y the passage of the pectoral girdle, which strips the neck-area of its libs ; or. to l)e more exact, the passage of the girdle is associated with the denudation nf the neck of its rib tissue. From the fact that fish are neckless, and that limbed verte- brates have necks, it is apparent that the evolution of the neck becomes necessary as the limbs are evolved. A neck is of no use to a fish and a formed neck in marine animals has the effect of diminish- ing speed and making steering difficult. As the limbs were evolved they descended the neck, and as they descended they became larger and stronger, and as the limbs became larger and stronger the neck proportionately developed. Ihe pectoral girdle provided the means wherein' the fore-limbs were carried down the neck, and Avith them the heart, from bhe gill-area to the thorax, these migrations becoming necessary as more perfect land progression was essential to the 90 W(dier Shipley: animal. As the j^irdle passed down the neck, the cervical vertebrae were denuded of their ribs, to a greater or less extent, according to the activity of the neck movements. The fore-limbs of ('erotodus, the lung-fish of Queensland, thou.gh only slightly developed, are somewhat larger than the fore-'imbs of pectoral tins of ordinary fish. It seems most probable that the slight increase in size of these puny fore-limbs is the result of impulses that have resulted from contact with mud. Ribs are present in the neck area and throughout the remainder of the body cavity. The Menopome, which Owen descriljes on page 4S, vol. I. of the 1866 edition of Comparative Anatomy, shows some Hiuli and neck development. Small ri])s oi-cur throuuhniit the l)ody and necl\ of this amphibian. Tracliysaiirus riK/osi/s, compared with Cf^ratod i"<, shows a great development of the pectoral girdle, a development which expresses th-j construction of a bony carriage that is used to convey not only the fore-limbs down the neck as they progressively develoj), but also the heart from a position of threatened danger to one of secured safet}% that is from the throat to the chest. In this lizard the pectoral girdle embraces the heart in what corresponds to the gill-area, beneath the neck, and spreads itself over and above the cervical ribs. As the j^ectoral girdle bears the heart and fore-limbs down the neck, the cervical ribs are reduced to rilj-stumps, a condition that is remaik- ably well shown in the crocodile. Trdclii/xanrns has pdor powers of progression, its limbs being small and its neck undeveloped. It is an interesting animal because it s'hows the early stages of the migration of the heart from the gill-area to the thorax, during which migration the left recurrent laryngeal nerve is caught about the aorta and dragged into the thorax. The Tuatara lizard, S^/henodon pniirtatus, shows partial suppres- sion of the ribs of its neck, therein agreeing with that rib suppression which is seen in the more common lizard. Voranus varuis is as active a lizard as Trarln/s(iurii< riKjosux is sluggish. It has a long neck containing six cervical vertebrae ; its heart has left the pectoral girdle and become an occupant of the thorax, and its pectoral girdle shows signs of atrophy. In the croco- dile the pectoral girdle undergoes further atrophy, and tlie posterior portion is retained to form the coracoid bones. The narrowing which the girdle undergoes, in being tiansfonued into the coracoids, enables the seventh vertebra to perform neck mavements ; and thus the seven cervical vertebrae that iliaractcrisc the mauimaban necis, ai-e established. This is a critical time in the evolution of the mammalian neck, for at this stage the l)()dy is elevated for raised (piadrupedal pro- Cervical R'ths In Man. 91 <;ressi(iii. The impulses that accomplish this j^veal rhaiiirc ctcli into the mammalian neck its very fixed characters. Tlie neck of the crocodile bears fourteen cervical iil)-stumps, made up of seven pairs; -the first and second pairs are lon'j l)ecause the pectoral girdle only caught their tii)s in its span of the ventral and lateral aspects of the ne<;k; The r.cck of Vs in reptiles and birds lends a yielding character to the junction of neck and chest, whereas the bony first ribs of mammals give a rigidity to the 92 Walter Stapley : boundary between neck and thorax. In many birds and nianj rep- tiles the coracoid bones migrate backwards and establish eight and more neck bones, and as they go back they imperil rib-end after rib- end, which becomes removed by the associated impulses. In This way the long necks of birds and reptiles are apparently formed. Extinct Sea Lizards. — The Irhthyosaunts had cervical ribs. Thp Plesiomurus had a long neck and no ribs on the first seven bone« : it may be inferred that Phaiomiirits was slower in the water than the Ichthyosaurus, and that it first developed its lung neck on swamijy land, after which it became aquatic. Elevated Quadrupedal Reptiles. — The Brontosaurus had both a long neck and tail, each of which contained nuuiy vertebrae. It had attained a mode of progression that has some resemblance to mam- uuilian C[uadrupedal progression. It would seem that these extinct reptiles were not lifted from the ground l)y their limbs when seven neck bones had been formed, and that body elevation in their case only occurred after many neck bones had already been established. Fixed Mammalian Neck-type. — This is characterised by seven neck bones devoid of cervical ribs, associated with a definite type of neck curvature that is more or less marked. This type was established by the mammalian body being lifted up from the ground by the limbs when seven neck bones had been formed, an event that was accom- panied by the suppression of the coracoid bones. Monotremes.- The monotremes show ne'ck structures transitory between reptilian and mamnuilian type; the platypus, that lives mostly in the water, has relatively larger coracoid bones than the echidna, that lives on land and mostly in soil. It would seem that the a.pproximation of the limbs to the ventral aspect to allow of burrowing operations has been inimical to the coracoids. The echidna has better fore-limb development and greater neck curvature than the platypus. The straighter neck of the platypus contains cervical rib- stumps, whereas the rib tissue in the curved neck of the echidna is less of the nature of ri])-stumps and more of the nature of costal prn- cesses. The echidna shows rib-stumps merging into costal processes ; therefore the suppression of ribs into costal processes can be traced, but I am unable to find evidence supporting the prevalent idea that costal processes develoj) into cervical ribs, the term "costal proi.-ess "' being taken as synonymous with vestigial ribs and not with the costal rudiment. Iho echidna shows that under the impulses that raise the body from the gi-ouiiil the curvature of \\\c neck lu'conies estahlislied, and the rib-stunqis disappear into the costal processes. The hrst ribs of the monotremes dili'er from those of rei>tiles in being attached to the sternum lyy hone ; tliey differ from mammals Cerviad liiMx in Man. 93 with which they are chissed, in liavins. No mammal that habitually carries part of its body weight on the pectoral limbs varies from seven neck bones. All mammalian cervical ribs and all mammalian variations from seven cervical vertebrae, occur amongst those mammals that have abandoned quadrupedal progression, such as Bradijpus, Porpoise, Manatee, Diiyong and Man. Quadrupedal mammals remain true to neck type because they perform those neck and limb functions which the mammals were evolved to perform. Mammals that have abandoned quadrupedal progression may show destruction of the fixed mammalian neck type, but all such animals do not vary from fixed type. Those that are variant have been submitted to impulses of a hostile nature ; great stability of type occurs when the neck has to operate from a thorax that has l^een made rigid by the impulses that are associated with 94 Waiter Shipley: supporting the weitrht of the })ody above ground ; and conversely, the type is less tixed when the thorax is not made rigid by such impulses. In the quadrupedal mammals, the transmission of the wedght of the body from the sides of the ribs through the great serrated muscles to the scapulae, and thence through the limbs to the ground, narrows the cephalic end of the thorax by lateral pressure ; this narrowing of the thorax, which is splendidly shown in the skele- tons of the horse and giraffe, drives the lungs towards the loins and keeps the apices of the lungs liehind the anterior liorder of the first ribs. The apices of the lungs al)ove the first ribs, the normal anatdmical position in man, constitutes a divergence from the normal mammalian position of lung. Ribs unaffected by pressure are curved, probably because betAveen cui-^^ed ribs the maximum amount of lung may collect. Be that as it may, the fact stands that the first ribs are the most curved ribs in the human body, and that the first ribs of the horse are the straightest in its body. The first ril)s of men are prac- tically never fractured, because no strain is thrown on them ; the first ribs of the horse are frequently fractured ]>3' the strain thrown on them by the weight of the horse's body, and also by the load superimposed by man. The bearing of these facts on cervical ribs is that straight first ribs prevent the hmg passing into the neofc, whereas curved first ribs permit the passage of the apices of the lungs into the neck, and when lungs gain the mammalian neck, ribs develop over them as the occupation of the neck becomes more extensive. Marsupials. — All these animals, including the extinct Dipi-otndon ausf7'alis, are true to mammalian neck type. The kangaroos have acquired a mode of progression that has led tn atrophy, from disuse of the pectoral limbs and upper thorax. Owing to the inclination of the body being submitted to great changes, a good degree of neck curvature exists ; mostly the body is tilted downwards and forwards, and it is erect for only brief periods ; thus the lungs occupy the posi- tion that is normal to cpuidrupedal mammals, and they arc not induced to migrate, as they do in man, towards the neck. The lungs of the kimgaroo do not encroach upon the neck, there- fore cervit'al ril)s do not occur in these animals. Xenarthra. The neck structures of the animals of this order afford an interesting and difficult study, interesting because of the variation of type that occurs in the sloths, difficult because abundant material for comparison is hard to get. The extinct M f(ilf'i/ : toed sloth, the .inimal presents a long II. with the middle of the back at the lowest part, and the head in a position that is more or less erect. The two-toed sloth has a body and limbs that are lnnsis alone the Cervical Ribs in Mhy of the pectoral liml)s. The term involution of the nock may be applied to this atrophic condition. The arms of Man that are associated with cervical ribs are in a state of atrophy, and they have receded towards the head by the distance occupied by the cervical ribs. It will be remembered that the fore- limbs of the slowly moving lizards are near the head, in other AN'ords in the early evolution of the neck the fore-limbs are near the head. .Surgeons have repeatedly recorded that lervical ribs shut off by jires- suro the arterial bUjod supply of the upper limbs, and Keen shrotect the more delicate tissues of the body, even the delicate convolutions of the brain leave their indented Cervical Ribfi in Mun. 103 impressions on the hard inner tables of the chivariiun. The reason that eerviral ribs appear to stranf^ulate the blood supply of the limbs is that from the involuted lin)bs no impulses arise to )iut into the heart and arterj' enouofh force to drive blood in f Botany and Plant Physioloj-'y in the University of Melbourne) BERTHA REES (Lecturer on Botany). (With Plates V. and VI.). [Read 9tli May, 1912. J. Abutilon indicum, Sweet. " Indian Lantern Flower." (MalvaLetie). Coode Island, Victoria. J. K. Tovey, March -iSrd, 1912. A native of the tropical regions, also found in South Africa. An exotic not yet sufliciently established to be considered naturalised in this State. Ac'AENA MONTANA, Hook, f. (AcAENA TASMANiCA, Bitter, in BibliothecH botanica, Heft 74, (Stuttgart).). (Rosaceae). (Determi)ied by Dr. Bitter, Bremen, September, 1911). Alpine regions of Mount Field East, Tasmania, F. Mueller, Jan., 1869. At'AENA ^;anguisokbae, Vahl. forma. (Rosaceae). (Determined by Dr. Bitter. Bremen, September, 1911). Summit of Mt. Dayman, New Guinea, 9000 ft., W. E. Armit, 1894, AizooN KiGiuiM, L. var. angl stifulilm, Sund. " Rigid Aizoon." ( Ficoideae). Coode Island, Victoria, J. R. Tovey, December, 1908, and March 23rd, 1912. Indigenous to South Africa. An exotic not yet sufficiently estab- lished to be considered naturalised in this State. 1 No. IS in Proc. Roy. Soc. Victoria, vol. xxi\. (ii.s.), \i. -Vm, lltll. ]06 Eivart and Bees: Aliuzzia amoexissima. F. v. M., Fragm. viii., p. 165. (Leguniinosae). This plant was given in the first Census, from New South Wales, Queensland and Victoria, omitted from the second Census (presumably inadvertently), and restored in the manuscript. The only specimens in the Herbarium are the original types from the north-east boundary of New South Wales. There is no Victorian specimen or record of this plant, which must hence be deleted from the Victorian Flora. Ambrosia artemisifolia, L. " Roman Wormwood." (Compositae). Wimmera, Victoria, M. Ouerin. 1890: Tabilk. Victoria. Mrs. James, 1J)U5 ; Shepparton, Victoria, J. C Walker, October, 1911; Coode Island, J. K. Tovey, March 2:3rd, 1912. This Composite, a native of North America, recorded as a u:arden escape in the " Weeds, Poison Plants and Naturalised Aliens of Vic- toria," p. 94 (19U9), has now evidently permanently established itself as a naturalised alien in Victoria. Andrupugon gryllus, L. (Gramineae). North Australia, Dr. Gilruth, 1911. Andropugon sbriceus, R.Br. (Gramineae). North Australia, Dr. Gilruth, 1911. Anthistiria avenacea, F. v. M. (Gramineae). Roper Plains, North Australia, Dr. Gilruth, 19'11. '■ Locally known as Blue Grass. Generally eaten last by stock." Anthistiria memhranacea, Lindl. (Gramineae). North Australia. Dr. Gilruth, 1911. " Stock fairly fond of this grass." Anthyllis vulxerauia, \j. '■ Kidney Vetch." (Leguminosae). Lilydale district, Victoria, Mr. Kerr, January, 1912. This herliaceous perennial plant has now established itself in the Lilydale district, and may l)e considered naturalised. It is a native of Euiope, Asia and Africa, and is a useful pasture plant for dry pastures. Aristida calycina, R.Br. (Gramineae). North Australia, Dr. Gilnith, 1911. Astreula rHiru' )11)Es. F. v. M., var. i^appacea. lieutli. ((iramineae). Bull Oak Creek. North Australia, Dr. Gilruth, 1911. Flora of Australia. 107 Atrii'LEx sTU'iTATiM, Beiitli. ■' Kidney Sallhush." (Chciiuiiodiaft'ae). Werribee Gorjre, Victoria, V. R. H. St. John, Januaiy 29th, 1912. A new locality for this jilant. imly previously recorded in Victoria from the north-west. Bartsia Trixago, L. " Trixa«>;o liartsia." (Scrophulariaceae). Near Newstead, County of Talbot, Victoria, F. M. Reader, Oct., 1909 ; Boorhanian, North-east Victoria, per J. Callander, October, 1911. This naturalised alien is now recorded from four widely separated localities, and is evidently spreadinjr. Like " The Couiuion Bartsia " (Bartsia latifolia, Sibth. and Sni.), it is probably parasitic on the roots of grasses. Brassic'A aupressa, Boiss. "Hoary Brassica." (Cruciferae). A native of Europe, now naturalised as an alien round al)out Mel- bourne and in the Sale district. It has not previously been recorded. It has no pasture or economic value, and is usually a weed of waste places. If neglected it is capable of becoming a troublesome weed in cultivated ground and even in pastures, owing to its free powers of seeding. Sheep appear to eat the young shoots, espc'cially when pasture is scarce. Caltcotome sriNosA, Link. " Spiny Broom." (Leguminosae). Growing along roads at Bolwarrah, near Ballarat, C. French, junr., July 27th, 1909, spreading on the top of the clitfs at Mornington, C. French, junr., March :5rd, 1912. This plant, a native of Spain, can now be regarded as a permanently established naturalised alien. It was possibly originally planted in a hedge, thence running wild. It has no known economic value beyond its value as a hedge plant, and is quite capable of becoming a trou- blc'some weed if neglected. Cnicus henedktus, L. (Carhenia bexedicta, Adans.) "' Blessed Thistle." (Compositae). North Ovens Shire, Victoria, Feb., 1905 ; North Wangaratta, C. T. Kidd, Oct.. 1911 ; Springhurst, J. E. Aldridge, Nov., 1911. This hardy annual, a native of the Mediterranean regions, was re- corded in the ■" Weeds, Poison Plants and Naturalised Aliens of Vic- toria," p. 94 (1909), as a garden escape, but it has now apparently established itself and may be considered naturalised. According to 108 Etvart and Rees : the 1905/6 Botanical Congress, Carbenia benedirta, Adans., becomes Cnicus benedicMis, L., as the only representative of the genus Cnirus, and all other species described under Cnirus must be transferred to either Carduus or Cirsiuni. Crtptaxdra UNCiNATA (F. X. M.), Gruning. (Uhanniaceae). This plant was originally described by Mueller as Beyer ia viscosa, var. uncinata (Euphorbiaceae), and by Baillon as Beyer ia (?) uiicinata. Benthani states " male flowers unknown." Gruning, to whom speci- mens were sent in connection with the preparation of Engler's Ptianzenreich, finds five stamens to be present, and transfers the species as above. The original label by Mueller is " Beifera risrosa, Miq., var. iiiiriiiafd.'' A second label, apparently by Baillon, reads, " Bei/ena (?) uiirliiafa. In Adansonia VI. (Spec, certe al). B. r/svosy/ distincta)," and it was published by Baillon as Beyeria (?) itiiriiiata. DiANTHUS Armkria, L. " Deptford Pink." (Caryophyllaceae). Upper Gundowring, Victoria, A. B. Braine, December. 1911. This European plant has only previously been recorded in Victoria friini Darebin Creek (see Benth. Fl. Aust, vol. i., p. 156 (1863) ), and was placed in the list of naturalised aliens in the " Weeds and Poison Plants of Victoria," p. 76 (1909), as probably only a garden escape. It appears, however, to be now permanently naturalised. Eragrustis tenella, Beauv. (Gramineae). Water-course bottom. Bull Oak Creek, Northern Territory Exiiedi- tion, Dr. Gilruth, 1911. Eriochloa punctata, Hamilt. (Gramineae). Bull Oak Creek, N(u-th Australia. Dr. Gilruth, 1911. ■' Fairly common, eaten readily by stock." Grindelia SQi arkosa, Dunal. " Tar-weed." (Compositae). Kerang, Victoria, February, 1905 : Tatura, W. F. Mahon, Feb., 1909; Shire of Kerang, H. IJutson Hooper, April, 1912. This plant is a native of North-west America. It has no economic value, but appears to be establishing itself slowly as a naturalised alien in this State. Though first recorded in the Kerang shire in 1905, it is still scarco there, and is found mainly on close, retentive or clayey soils. Flora of Atidralla. lU'J Hermanma velutina, DC. ■■ Velvet Herimmnia." (Sterciiliaeeae). Coude Isliind, Victoria. .1. I{. Tovey, March •-'.'{rd. I91l>. Indiireiious to Soutli Africa. An exotic not yet siitHciently estab- lished to be considered naturalised in this State. Ht'YLEYA, Ewart. new etals, and in the form of the labellum. 112 El cart and Rees : PuAsoi'HYLLUM DEspECTANS, Hook, f., viir. INTERMEDIA. Ewait and Kees. (Orchidaceae). Eucalyptus forest. Green Valley, County of Talbot, Victoria, F. M. Reader, May 4th, 1910. In spite of slipfht difference in the shape and curvation of the lateral appendages (see Proc. Roy. Soc. Vict., vol. 2.3, Pt. 1), this speci- ujen seems best referable to the above variety. In view of the amount of variation which seems to be shown in the lateral appendages of the column, it is questionable whether too much attention is not attached to them in classification. Prasophtllum Suttoni, Rogers and Rees. (Orchidacea). Buffalo Plateau, Victoria, Dr. Sutton, December, 1902. Plant about 10 inches, fistula about 3 inches below spike, leaf about 2 inches. Spike consists of about 9 flowers, from which the colours have been discharged in the process of drying, although the faint tints on all the sepals and the dark tints on the column suggest that these have been purple. The petals look as though they had been white, with a coloured dark central streak. Flowers very shortly stalked and subtended b}' a small semi- ovate bract about as broad as long. Lateral sepals about 4 lines, quite free, not gibbous, rather narrow lanceolate, dark stripe down middle, convex below, channelled on top (i.e., labellar side). Dorsal sepals about 3 lines, rather narrowly hooded, pointed, not recurved. Lateral petals broader and longer than lateral sepals, i\ lines, rather broadly linear with triangular tips, membranous, with dark stripe down middle. Lateral index 112. Labellum on short claw, obovate recurved at an angle of about 60 deg. at the middle, proximal part measuring about 2 lines from claw to bend, not gibbous, with entire margins, distal part measuring about 2 lines from bend to tip, latter rather broadly blunt and rounded, margins and surface almost entirely membranous, slightly crenulated ; callous portion rather narrow, channelled, increasing in thickness towards the bend and ending slightly beyond the latter in 2 raised lines. Anther not pointed, hidden l)ehind rostellum and nnich shorter than latter. Appendages of column lai'ge, reaching quite to level of rostellum, falcate, with small basal ovate l()l)e, adnate only to base of column. Rostellum voluminous, purple, much higher than anther, triangular. Stigmatio surface large. Ovary short (about 2 A lines), turgid, obovate, on very short pedicel. The s])ccies appears to be perhaps most closely allied to /^ fiarinii, though also related to other species. The examination and descrip- tion of tlu^ ]ilant was carried out jointly l)y Di'. Rogers and Miss Rees. Flora of Aihdralia. 113 Sarga sTii'oinEA, Ewart and White, Proc. Roy. Sou. Yiot., vol. xxiii., 1911, ]i. 207, Andkopogon Sargus. Ewart. Tlie ii'enus ' Sania." tlioiiLrh ori()sition, would have been practically a revival of the sub-icf'iil ccni of Water in Trers. By ALFRED J. EWAHT, l).8c., Ph.D, F.L.S. (Professor of Botany aiul I'lant Physiolo<^y in the MellnKxrni' University). (Witli Platp VII.). [Rea-l 9th May, ];)12. . The question us to whether the aid nf livinp: wood tissue is neoes- sarv for the continuous conduction of water up loft)' trees is still an unsettled one, beint:or.a'y ?o!'v.>:ins. It "s cpiite nn open miestion ns to wliethcr a column of water flowing with fair rapidity through a tube would exhibit the same tensile strength as a stationary one, particularly if its flow were interrupted by roughness and occasional transverse par- titions, producing eddy currents or irregular flow instead of steady stream line flow. This question is, of course, one for physicists, liut 1 Phil. Trans. Hoy. Soc. London, B., vol. 19S, 1905, p. 41 116 Alfred J. Eivart : until it is answered it is not permissible to assume that the results obtained in glass tubes with stationary columns of water can be directly applied to the flowing columns of water, surrounded by the rough, water impregnated walls of the, wood vessels, which are also readily permeable to air under pressure. In a second paper, experiments were conducted on entire trees to determine whether any of the high tensions postulated in the water tension theory in the ascent of sap, could be detected in the wood of actively transpiring trees. The results obtained were in the negative, but, as pointed out by Dixon, the ordinary manometer experiments are unable to provide against the existence of air cavities in the wood tissue, so that the pressure exhibited by a manometer might be con- siderably less than that actually existing in the cavities of the wood vessels themselves. In any case this very fact makes it difficult to see how a high tension could be maintained for any length of time in a w^ater column contained in a tube w^hose walls were saturated with water, and which bordered externally upon air spaces. Tlie appear- ance of the minutest bubble of air in such a column of water would immediately cause its tension to be reduced to some fraction of an atmosphere. Actual observations, which have been confirmed by more than one observer, have shown that the wood vessels in the functioning wood of actively transpiring plants do actually contain bubbles of air, and hence cannot possibly transmit any tension exceed- ing an atmosphere. In the same paper an account was given of an experiment with an entire tree, carried out on the same lines as those by Strasburger — namely, by cutting an entire tree at its base, and allowing first a poisonous and then a coloured solution to be drawn up the trunk of the tree. TTie experiments showed that there was a distinct tendency on the part of the sap to avoid the parts of the wood which had been killed l)y poison, and to flow in the older parts of the wood to which less poison had penetrated, but in which the flow is usually least active under normal conditions. Apparently this pointed to tlie necessity of the existence of living wood cells to maintain the function of the wood vessels as conducting chambers, even for short lengths of time, and this would tend to show thiit the water tension theory onlv afforded a paiiial explanation of the ascent of water in tall trees. It was, however, obviously .advisable to complete such observations l)v experiments canicd out on tlie tallest trees available of 200 to :^I10 feet in lieight. The initial diffi- culty lay, however, firstly in the comi»arative inaccessilulity of such trees for scientific experiments, and secondly in the difficulty and cost of caiTving out the ri'(|uii-('d mani]uilations. whii'h would include very 1 I'liil Trails. Koy. Soc. London, 11, vol. 100, y. 341. Ascent and Dencent of Water in Tree><. \V strontr scaffolding and special apparatus for rapidly cuttino^ the base of the tree and avoidinfr its exposure to air. Accordinsrly a simple ]ireliniinary experiment was tried upun a small tree of Acacia iiioUisxima- irrowing- in the Herbarium litres, (li litres per hour) p.m.- 9.30a.m. - 11 litres. (1 litre per huiir) Thursday, 14th !t.30 a.m. - 10.30 a.m. Fresh surfaces ut wood cut 10.30 a.m. - 11.30 a.m. - 2 litres. 11.30 a.m. - 12.30 p.m. - l\ litres. 12.30 p.m. - 1.30 p.m. - 2i litres. 1.30 p.m. - 2.30 p.m. 2.30 p.m. - 3.30 p.m. 3.30 p.m. - 4.30 p.m. 4.30 p.m. - 10.30 p.m. 10.30 p.m. - 10.30 a.m. l.j litres. Ij litres. 1 litre. 5 litres (0.83 par hour) 5 litres (0.83 per hour) Friday, loth. 10.30 am. - 11.30 a.m. - ^ litre. 11.30 a.m. - 12.30 p.m. - 1 litre. - Briii'lit suu Overcast, clearing .slightly to mill-day Cloudy Siuii and slight clouds Cloudy Slight sun Bright 3Un 118 Alfred J. Etvart : The following table from the Melbourne Observatory records gives the hygrometric conditions for the first day of the experiment. March 13th, 1912. Time Di-.v Bulb Wet Bulb. Computed relative humidity. 100 = satuaratioi). Evaporation at a free surface of water. 9 a.m. - 62.5 - 55.2 - 63 pel- ceot. - Amoiiut of water evaporated 3 p.m. - 65.3 - 56.0 - 54 „ „ from 9 a.m. to 6 p.m. 6 p.m. - 60.8 - 53.0 - ■ 58 „ „ 0.086 inches. With a spread of 14 feet diameter, the tree covered an area of ground of 142,588 square centimetres. With a rate of evaporation of 2.19 millimetres per 9 hours, this would give a total loss from a free surface of water of 31 litres, or 3.4 litres per hour. The estimated rate for the whole tree from branch observations made at 10 a.m., 1.30 p.m. and 4.30 p.m., represented an average total of 2.2 litres per hour during the same period. This is considerably less than the actual amount absorbed, and less than the amount that would have evapor- ated from a free surface of water covering the same area as the spread of the tree. Since the leaflets of the cut branches were, however, in all cases partially folded by the close of the experiment, it is possible that the estimated rate of transpiraton was somewhat less than actually occurred in the tree as a whole. In all experiments in which eosin is used to indicate the ascent of water, the lateral diffusion of the dye makes it not altogether a perfectly safe guide as to the exact path of the Avater current. For this reason, copper sulphate was used as the poison to precede the eosin. ^ When copper sulphate is added to a strong solution of eosin, the greater part of the dye is precipitated, and hence it was thought that the ascending eosin would be fixed in the walls of the wood vessels by the copper sulphate impregnating them, and so largely or entirely prevented from lateral diffusion. This was actually the case. An examination of the wood showed the almost exclusive part played by the wood vessels in the ascent of sap. No indication could be seen of any connection of the medullary ray cells with the a-scending stream, but as the copper sulphate had killed then before the eosin had entered tlie stem, this fact affords no evidence one way or another. In addition, the presence of copper sulphate in the wood caused the eosin to be held back to such an extent as to make it useless as a measure of the movement of the sap. Thus when the tree was cut down at the end of the third day, eosin was only perceptil)le in the main trunk up to a height of 10 feet, and was entirely restricted to the outer layers of wood 1 to IJ inches in depth at the base, and tapering to a depth of ^ inch upwards. Proc. R.S. Victoria, 1912. Plate VII. Ascent aiul Descent of Water in Trees. 119 Traces of copper were, however, detected in the outer wood at the top of the tree, after incinerating and treatinp: the residual ash with a drop of nitric acid and an excess of auniionia. At the same time, however, it was found that the posin solution had also travelled down the stem, and it was traced out for distances up to 7 feet along the lateral roots, up to roots less than | inch in diameter. Judging from the depth of colouration, a greater flow had taken place down the stem than up it from the point of section. We are so accustomed to think of the sap as always ascending, that this result seems at first sight somewhat surprising. As a matter of fact, tne water would flow more easily downwards, particularly if the central intact wood cylinder exercised a suction upon the roots below the point of injury. The fact that this is possible, however, makes this method of investigation unsuitable fur application to the largest trees, unless two conditions can be fulfilled, which are --(a) it must l)e possible to cut away the whole of the alburnum, leaving only perfectly non-conducting duramen ; (b) the lower cut surface must be blocked with wax or some siuiilar substance. The total amount of liquid absorlied by the upper and under cut surfaces from 10 a.m. to 4.30 p.m. on the first day, was no less than 33-i litres, or 5.1 litres per hour. A large proportion of this, how- ever, may have been absorbed either to bi-ing the wood to full satura- tion point, or a portion may have actually oozed out from the roots into the soil. That pressure applied to a cut stem will cause water to exude out through the roots, is easily shown, and the pressure of continuous columns of water in the tallest trees, if it were trans- mitted directly to the absorbing roots would certainly cause an out- ward flow through them. Whether the forces preventing this are derived solely from the suction of the leaves, or are partly the result of agencies acting in the stem along the path of the transpiration current, is still an open question, to which the foregoing experiment affords no decisive answer. [Pboc. Rot. Soc. Victoria, 25 (N.S.). Pi- I-> 1912. Ar'I'. IX. — Description of Two New f,schnoch(toiis froiii Western Fort, Victoria. By A. R BASSET HULL (Sydney). Commi;nicated \)y C. J. Gahriel. (With Plate VIII. ). [Eead 11th July, litl2]. The two shells here described were dredged in from 6 to S fathoms, between Phillip and French Islands, Western Port, Victoria, by Mr. C. J. Gabriel, of Abbotsford. They were submitted to Professor Joh. Thiele, of the Imperial Zoological Museum, Berlin, who expressed the opini(jn that they were both new species, and after careful examina- tion I concur, although one of the shells has already been taken by dredging at Frederick Henry Bay, Tasmania, and identified by Tate and May as Ischnochiton tateanus. It is, howeiver, undoubtedly quite distinct from that species. The small shell, which I propose to associate with the finder, is considered by I'rot'. Thiele to be certainly an Isrhnochituii, although I am inclined to think that it possesses more of the characteristics of the LepidopJeuriduc, inasmuch as valves ii. to viii. are unslit, and even the anterior valve has very rudimentary slits. The types of both species are in the collcitiun of Mr. C. J. Gabriel. 1. Ischnochiton gabpieli, n. .sp. (PI. VIIL, Figs. 1, a, b, c, d, e, f). Shell small, elevated, carinated. Colour yellow, irregularly macu- lated with brown. Anterior valve fineh' granulose, the granules tend- ing to a radial arrangement, the rays slightly curved. Median valves, lateral areas slightly raised, covered with irregularly disposed granules ; central areas with granules arranged in radiating rows, curving out- wardly and diverging upwards oa-er the juguui. Posterior valve irre- gularly granulose ; mucro obtuse, behind the middle. Girdle covered with small, smooth densely imbricating irregular scales. Interior white ; sinus broa which the jioint K bore to the basion In-egma line, the point being always in that line, or a few millimetres to one or other side of it. On adding the glabella lambda line, Klaatsch noticed that it almost always intersected the basion bregma line at a right angle. The point of intersection he therefore terms tlie '■ Zentrum." On account, therefore, of, tirstly, the centre of gravity falling in, or close to, the basion bregma line ; secondly, that line intersecting the glabella lambda line at a right-angled " Zentrum," and, lastly, the natural coincidence of this glabella lambda plane with the natural position of the head in life, Klaatsch proposes that this plane should be made the natural base line for all future cranionietrical work. Upon this base line he further proposes that a quadrilateral figure should be devised, the sides of which are drawn from the glabella to the bregma, the bregma to the lambda, the lambda to the basion, and the basion to the glabella, respectively. These four lines, therefore, correspond in part, but not entirely, to the chords of the frontal, parietal and occipital bones, and the " basi-cranial " axis. On the four sides of this quadrilateral figure Klaatsch further proposes the erec- tion of a series of triangles for the study of angles of curvature and other allied points in connection with the several bones of the skull. The whole of this system he designates as a " craniotrigonometrical " method for studying the skull (Fig. 2). One advantage, amongst others claimed ))v its author for his method, is that the various angles will now receive their correct nomenclature, as Klaatsch, in common with others, has criticised Schwalbe's method of naming or misnaming these angles. Klaatsch. for example, proposes to obviate any con- fusion that may arise by designating angles by the position of their apices. He says : '■ Mein Prinzip ist jeden Winkel nach seinem Scheitelpunkte zu beneunen.' He thus terms the angle l)ounde(i by the bregma glabella and laml)d:i glabella lines the upper glabellar angle. (See Fig. 2.) 126 L. W. (J. Bachncr F/C2 Fig. 2. — Illustrating Klaatsch's Craniotrigonometrical Method. G = Glabella. B = Bregma. L = Lanil)cla. I = Tni()n. Ba = Basion. P = ProsthioM. S-=Zeiitrum. 1-4 Inner Triangles. 5 Frontal Triangle. 6 Parietal Tri-, angle. 7 Chief Occipital Triangle. 8 Adjacent Occipital Triangle. 9 Upper F;tcial Triangle. It was suggested to uie by Professor Berry, of Melbourne X'^niver- Bity, that I should apply this new craniotrigonometrical method of Klaatsch to the fifty4\vo Tasmanian crania previously examined by Dr. Robertson and himself (5) to ascertain if the methods just referred to as having been recently used by Klaatsch, were better adapted to the evolutionary morphology of the skull, than the older '' form analysis " method of Schwalbe ; and, in the second place, tn ascertain if the several ranges of vaiiation of the measurements to be recorded by this new method led to the same general conclusion as those obtained by the older method. The u)aterial upon which this invest igatitvn is based will be found in Berry nnd Robertson's Dioptrographic Tracings in Four Normae of Fifty-two Tasmanian Crania (21). The present series of observa- tions will be found in Noiina A, that is, the medium sagittal tracing. Tatimati hi n Crd'n ia. 127 I have recorded in Table I., twenty-seven selected observations on every skull, where the natural condition of preservation enabled such to be recorded. The observations recorded are as follow : — 1. The glabella lambda length. 2. The glabella zentruiu length. 3. The zentrum lambda length. 4. The basion bregma height. 5. The bregma zentrum height. 6. The zentrum basion height. 7. The angle at the zentrum. 8. The glabella bregma chord. 9. The bregma lambda chord. 10. The lambda basion chord. 11. The basion glabella chord. 12. Tlie glabella bregma basion angle. 13. The lambda bregma basion angle. 14. The bregma lambda glabella angle. 15. The basion lambda glabella ancle. 16. The lambda basion bregma angle. 17. The glal)ella ])asion bregma angle. IS. Tlie basion glabella lambda angle. 19. The bregma glabella lambda angle. 20. The glabella bregma lambda angle. 21. The bregma lambda basion angle. 22. The lambda basion glabella angle. 23. The basion glabella bregma angle. 24. The lambda inion chord. 25. The inion basion length. 26. The basion prosthion length. 27. The prosthion glabella length. As the nature of thei^e twenty-seven can be easily followed frdui figure 2, in which they are displayed, it is unnecessary to descril)e them. Should more informaticm be required as to their character and nature, the reader may be referred to Klaatsch's original works (15 and 20) dealing with his metliods herein followed. In Table I.. I have followed the lines laid down by P.erry and Robertson (5). This serial number, the present location of the skulls, and the original number are recorded in the upper three horizontal lines. In the three left-hand columns are set forth the numl)ers and the names of the recorded observations. In the vertical columns of serial numbers are set forth the individual numbers of each skull. The male and female skull measurements have been separated, and rhe results are, therefore, tabulated in separate columns. The four ver- tical columns on the right, after the male skull measurements, record 128 L. W. G. Bnchner the number of observations made, the minimum and maximum fip;ures for that particular observation, together with the average results. The results of the female skull measurements are likewise recorded in the columns to the right of the measui'ements, whilst the total results of the unsexed skulls will be found in the columns on the extreme right. The maximum and minimum figures have been indicated l)y a + or — ■ sign in each row, and this method has been adopted uniformly throughout. As was also the case in Berry and Robertson's work on these parti- cular Tasmanian crania, it was not possible to record all of the observations upon every skull. Number 48 being a juvenile subject, the measurements recorded upon it have Ijeen uniformly omitted from the final results. In numbers 4 and 8, where the results concern the prosthion, they have also been omitted. r/C3 s../ ^-^^ -^- - - l^ig. 3 — Four Tasiuaiiian Crania superposed on Ivlaatsch's Base. Tasiiui nlan Cranio.. 129 :-'»A/.\ OojVtdl'C-T ..^- !«*•<)'*? Fig. +. — The Neanderthal (Klaatscli), Australian, and Tasmanian Skulls superposed on Klaatsch's Base. T^nfortunately no couiparative data for this method are yet avail- able, and so I can only record these observations without instituting any morphological or evolutionary comparisons. Klaatsch, however, records the measurements of one Australian (see Fig. 1). when the angle at the Zentrum is given at 90 deg., but Wetzel (22), on the other hand, found that in the Australian in no one of this three speci- mens was the angle of 90 deg. In the Tas.manian, my investigations show that this Zentrum angle in over 25 per cent, of the crania examined, is exactly 90 deg., but it is obvious that in view of the insufficiency of numbers of the Aus- tralian, and the discrepant results obtained by Klaatsch and Wetzel from those numbers, no comparison can be instituted l)etween my results for the Tasuianian, and those already mentioned for the Aus- tralian, and these apart, there are absolutely no other figures available. The Tasmanian crania as drawn by Berry and Robertson (21), were '■ oriented in the Frankfort plane and then drawn by means of 10 130 />■ ^^- ^- Biichner : Martin's Dioptro^rnipli." The rfsultin.L' dia^iraius art' tluM-L'foro stvi<'tly accurate ;ind cori-elativt». Klaatsili. however, in his Australian work did not employ mechani- cal methods for Hxation in the plane determined on, but used a yield- intr substance like plasticine. He says: — "In order to obtain exact results, the skull has to be carefully placed in proper position, it being essential that the tracins: of its contour be made on the level of a definite common horizon." But the question arises, can a skull always l)e placed in its proper position without fixed mechanical methods? Personally I think not, and for this reason I have not availed myself of the diagrams furnished in Klaatsch's memoir on the Australian aboriginal, as it is open to doubt whether the orientation is absolutely reliable. Consequently, apart from the few comparative data of the" Zentrum " angle referred to, I do not propose to institute any further craniotrigonometrical comparisons between my Tasmanian results and those of other observers on the Australian. I content myself, therefore, witli leaving to those interested the further examination of the various figures now for the first time made available in Table I. Concerning, therefore, the value of Klaatsch's craniotrigonometrical system, u)y investigation leads me to the belief that, for reconstruc- tioiial work, such as tliat of the face from the calvaria, the method may be of some value, inasmuch as I have satisfied myself that in the Tasmanian, at all events, the angle formed by the ])asion bregma and glabella lau)l)da. lines is, as averred ])y Kliiatscli, for all skulls, re- markably constant at or about 90 deg. Apart from this the method does not appear to ]iossess any ad- vantage whatsoever, as compared with the existinir method of ?!chwalbe. The latter method has been shown, notwithstanding its imperfections, and the fact as proved by Cross (23) that all its data arc- not of ecpial mor])hological value, to l)e of very real advantage for esti- mating the relative evolutionary growth of the brain, and of thus determining the relative positions of pre-historic and recent man of both low and high civilisations, one to another. My final conclusion is, therefore, that greater progress will be made in the craniology of peoples by extending the observations o'f Schwalbe, Beriy and Uol)ertson, Cross and others to as many nationalities as possible, than by tlie invention of new methods. Concerning the range of vaiiations in the 27 observations herein recorded, it is important, in view of the attention now being almost generally devoted to this cpiestion, to examine it carerully. Without going into the modern vexed (piestion of tlie causes of variations and mutations, it may be stated that there are, at all events two widely divergent schools. The views of the one school Tdsmanian Cvdnia. 131 may bo illiistrntetl hy ;i (luotation from Tlionison (24), who savs, when s|ieitkiiiL;' of llu- causes nf variation : "" In ret^ard to the causes of variation it is too socm to sjieak, excejit in tentative whispers. What Darwin said must still he said, ' Our ignorance of the laws of variation is profound. Not in one case out of a hundred can we pretend to assifjn any reason why this or that part has varied.' "' The other line of thoujrht may be illustrated by a quotation from Cossar Ewart (25), than whom there is no greater living authority on this particular subject. He says: — "Domestic animals reproduce themselves with great uniformity if kept apart ; but the moment one mixed up the two different races, strains, or breeds, one did something that was difficult to put in words, the result was what has I)een best described as an ' eiiidemic ' of variations." The main question in disjiute as to the origin of the Australian aboriginal is as to whether he is, or is not, an autochthonous race, that is, a pure-bred race, or the result of a cross, and in the Melbourne School of Anthropologv, almost all the several lines of research laid down l)y Professor Berry have been evolved with the solution of this problem in view. Frofu what Cossar Ewart has said, it is clear that, if the Tasmanian be a pure-bred and homogeneous race, the range of variation should be small, whilst conversely if the Australian be an im]nire or mixed race the range of variation should be high. With the Australian I am not at present concerned, but the subject will shortly be dealt with l)y Professor Berry and Dr. Robertson. Concerning the mode of situdying the range of variation, provided there be some standard object of comparison, it is an easy matter to express the range of the variation of the subject under consideration in terms of percentage with the standard object, as is now actually being done by my fellow investigators in this school. The results ax-e not, as yet, quite ready for publication, but the work comprises a comparative study of the range of variation of ■■ form analysis," and other cranial and facial measurements of sup- ]iosed i)ure races like the Tasmanian and Andamanese, of known im- pure races like the modern Italian, and of the doubtful race under investigation, the Australian. In my study of the craniotrigonometriual characters of the Tas- manian skull, it is obvious that as there are no other figures available to me, I cannot employ this particular method of studying the per- centage range of variation, but have had to fall back on an ordinary arithmetical figure for displaying the mean range of variation. I am well aware that it is more accurate to employ the modern biometric methods, but in this particular case the final results of the one method are not materiallv different from those of the other. 132 /.. ir. G. Bihchner: I have therefore worked out the ranjies (if variation for the whole of the twenty-seven observations for the males, the females, and both sexes combined. I have subtracted the minimum ranp-e of variation from the mean, and the mean from the maximum, added all these differences together, and divided the quotient by fifty-four, that is, by twice the number of recorded observations, being once for the minima and once for the maxima. The result is that in the twenty-seven craniotrigonometrical obser- vations herein recorded, in fifty-two Tasmanian crania the range of variation is as follows : — For males, 7.9. For females, 7.5. For both sexes, 9.9. As, however, thirteen of my twenty-seven observations comprise angles only, in which the range of variation can never be appreciably great, I have again worked out the range of variation for those fourteen of the twenty-seven observations which do not comprise such angles, and with the following results : — For males, 10.2. For females, 9.9. For both sexes, 10.1. In either case the range of variation is so surprisingly small that it would seem to be reasonable to apply Ewart's dictum that " Ani- mals reproduce themselves with great uniformity if kept apart," and to conclude by stating that the Tasmanian is a pure race. This con- clusion is the more warranted, because when the results obtained by my colleagues, Drs. Berry and Robertson, are available, it will be found that they achieve identical results by different methods. LTTEIRATURE. 1. Huxley, T. H. -Man's Place in Nature, MacMillan and Co., 1897. 2. Bolk, L. — ^" On the Slope of the Foramen Magnum in Primates :" Repiiiit from Prnceorlings, Dec. 24th, 1909, of Koninklijke Akademie van Wetenschappen te Amsterdam. :\. Sollas, W. J.—" On the Cranial and Facial Characters of the Neaudertal Race," Pliil. Trans., B, vol. 199, 1907. 4. Schwalbe, 0. — " Studien iibi r Pithecantlnopus erectus, Dubois," Zeit, fill- M()i|)h. und .Vnthrop.. Ikl. I., 1S!)9, |)p. 10 et see). 5. Berry, \i. J. A., and Robertson, A. W. D. "The IMace in Nature of the Tasmanian Aboriginal, as Deduced from a Study of his Oalvarium," Part I., Proc. Hoy. Soc. Edinburgli, vol. xxxi.. pt. 1, No. 3. Tasmaninn (Jrania. I:i3 G. Kliuitsch, Herman — Reports from Patholofrical Laboratory of the Luiuu-}' Department of N.S.AV.. vol. i., pt. iii.. 1908. 7. lurner. Sir W. " The ('raniok)etwet^n prognathism and the slope of the foram.en occipitale magnum. The greater the facial skeleton, that is, the more pronounced the degi-ee of prognathism, the more perpendicular was the slope of tlie foramen occipitale magnum found to' be. By superposing median diagrams of the highly prognathic skulls of a negro, Australian and Tartar, be found that the slope of the foramen occipitale magnum in these particular sculls formed a somewhat smaller angle with the basi- cauial axis, than was the case in orthognatic skulls. On the other hand, Welcker (13) failed to see any connection between prognathism and the slo})e of the foramen occiptile magnum, but thought there was some correlation between prognathism and the position of the opening, which, as Bolk (1-i) says, " comes practically to the same thing, if a connection between position and slope be assumed.' Welcker (15) says, " Biegt am Vordersiliadd der Oberkiefer des Menschen mehr nach vorn (Prognathismus) so riickt /ugleich am Hin- tersc'hadel das Foramen medullare mehr nach riickwarts." Aeby's (IG) Prog tiathism of Tasinanimi Ahor/(/l ixil. IH7 views do not ajri'ft^ witli tliost- of IIunIcv. He says, ' lliixlry !:'liiul)te (lie Neiufutig iiiit deiii I'roan for the series was 103.6, which thus brings the series into the prog- nathic group. It will he noted that the two sei'ies of figures produce different results, my series of 32 giving a niesognathic result, and the previous collective group of 34 producing a prognathic figure. The actual numerical difference is, however, but slight, as it only amounts to 1.6, and is almost certainly due to the use of insufficiency of numbers. To overcome this objection in so far as is possible to us, I now propose to combine my own entirely new series, of 32 crania, with those of other observers. I have, therefore, availed myself of the necessary figures recoided in (a) Flower's Catalogue of osteological specimens in the Museum of the Royal College of Surgeons, in London (9), (b) Turner's Memoir, in which are given the observations of the crania in the Brussels Museum, the University of Oxford, and tlu' I'niversity of Edinburgh, (c) Klaatsch's Memoir (32) on the Australian skull, (d) one from the Prorjnafhh?>) study of the Tn-snianian erauia in tlie Canihridj?e Aiiatoniioal Miisenni. This nnikes. coinLinol with the tia'ures of the present work, a total of 74 busi-nasal. (Ki liasi-prosthionic, and 66 gnathic index obserA'a- tions of Tasmania crania, which, it may be noted, is by far the largest number of Tasmanian crania as yet investigated in connection with the question of the prognathism of this nosv extinct race. The detailed results of the combined figures, and also of my original figures, are set forth in Table II. Combined Results TABLE II. Number Buchiicr Number Turner Number 1. The basi-nasal length - 41 - 95 - ... - - 7-t - 9G.G0±.47 2. The ba-si-prostiiiouiclciio-th .32 - !t7.5 - ... - ... - ()(> - 9S.7()±.50 3. Gnathic index - - - 32 - 1(I2 - :31 - W.i.ij - (i(> - 1U2.:!8±.30 This table shows that the gnathic index of the G6 Tasmanian crania utilised for the investigation gives a true mean of 102.38=b.30, that is, the Tasmanian is niesognathic, but stands at the extreme end of the scale, and is just on the confines of mesognathism and prognathism. It is clear that these figures must be accepted as furnishing the correct estimate of the degree of prognathism, for two reasons : firstly, Ijecause they comprise the largest number of Tasmanian crania ever previously examined for this purpose, many of which are entirely neAv to science, and secondly, because the final results are attained by biometric methods, and not by the laws of arithmetical average. Further, it is clear that the position of the Tiismanian on the meso- prognathic borderland, explains many of the discrepant results at- tained by previous workers with other methods, and insufficient data ; for example, we have here, I think, an entirely adequate explanation of the somewhat c^onflicting results achieved by such competent ob- servers as Turner (29) and Thomson. For the purpose of establishing a comparison between the prog- nathism of the Tasmanian and that of other races, I have utilised, for the former, all the figures available to me, in all 74 observations. From these I can only avail myself of G6 gnathic indices, for the suflScieut reason that in the remainder y no means a simple one. The cousins Sarasin have pointed out that the lowest forms of human skulls, e.g., those of Veddahs, Anda- man Islanders and Bushmen, are of orthognathous, or (Andaman Islanders) niesognathic type. The orthognathous type may thus have been attained by human beings at a very early period, and subsequently lost. If this be the case (but it is doubtful), the prog- nathous condition of Negroes and Melanesians, and the great projec- tion of the jaw in some woolly and straight-haired races, must be a secondary condition, which has been preceded by orthognathy. In this case the orthognathy once more attained by Europeans mu.st be regarded as a third phylogenetic phase of the evolution of the skull (Sarasin)." A further examination of Table V., from, the standpoint of racial impurity or otherwise, reveals little or nothing. The standard devia- tion, which reflects to a certain extent the influence of the range of variation, is found to be greatest in probably the purest race of all, namely, the Tasmanian, and, excluding the Veddah, for the reason already given, least in the known and admittedly impure race, the modern Italian. Looked at from this standpoint, we find that, as regards the standard deviation, the five races compared (Veddahs excluded) may be arranged in an ascending series as follows : — Modem Italian - . - - 3.54 Andamanese . . - . 3.60 Chinese .-♦.-- 4.03 Australian - - - - - 4.13 Tasmanian ----- 4.83 11 146 L. W. G. BOchner: Nii.mlef of Individuals. - 5-5 ^ ^ Oi fO €>» J^ o^ >«> Oi V JO — ^ 03 f — rOC>3^a>fl^^J^/J ■0 in o — fS

-J' -J «r -O z: Pru(jn((thitiiii at T(1'i n Aljorlytunl. 147 Notwithstandinjr that there are at the two ends of the scale known ]>ure and impure races, it is sutKciently clear that it would be very- injudicious to endeavour to draw any conclusions whatsoever as to the purity or impurity of race from the ranr!;e of variation of a secondary racial character like proy Bolk under (14). IG. Aeby, C. — Die Schadelformen der Menschen und AfYen, Leipzig, 1867. 17. Hopf, Ludwig. — The Human Species, Longmans, Green and Co., London, 1909. 18. Darwin, C. — ^Ttie Descent of Man, John Murray, London. 19. Darwin, C. — The Variation of Plants and Animals under Domestication, Vol. 1. 20. Spencer, H. — Principles of Biology, Vol. I. 21. Keith, A. — Ancient Types of Man, Librarv' of Living Thought, Harper Bros., London, 1911. 22. Duckworth, W. L. H. — Prehistoric Man, Cambridge, Manuals of Science and Literature, 1912. 23. Wiedersheim, R.^The Structure of Man, MacMillan and Co., London, 1905. 24. Schaafhausen. — On the Primitive Form of the Skull, Translated in the Anthropological Review, Oct., 1868, 25. Klaatsch, H. — Das Gesichtskelett der Neandertalrasse und der Australier, Anat. Anzeiger, Bd. XXXII., 1908. 26. Thomson, A., and Maclver, R. — The Ancient Races of the Thebaid, Oxford, 1905. 27. Fiirst, C. M. — Einiges iiber anthropologische Winkelmessungen und iiber ein Instrument fiir Wiukel-uud Index -hestimmun- gen. Zeitscli. fiir Morph. u. Ant-hrop., Bd. IX., 1906. 28. Keith, A. — ■Description of a New Craniometer, and of Certain Changes in the Anthropoid Skull. Journ. Anat. and Phys., Third Series, Vol. V., Vol. XLIV., 1910. 29. Turner, Sir Wni. H. — The Craniology, Racial Affinities, and Descent of the Aborigines of iasmania. Trans. Roy. Soc. Edinburgh, Vol. XLVL, Pt. II., (No. 17), 1908. 150 L. W. G. Bvchiier: Ta-smaiiian Abvriguud. 30. Berry, R. J. A., and Eol)ertson, A. W. D. — Diptrographic Tracings in Four Noriuae of Fifty-Two Tasmania Crania. Trans. Roy. See. Vic, Vol. V. (No. 1), 1909. 31. Biichner, L. W. G.— An Investifration of 52 Tasmanian Crania by Klaatsch's Oraniotrigononietrical Methods. Proc. Roy. Soc. Vic, this vol., pi-ecediner published last year by Dr. Love and myself^ we dis- cussed a uioditication proposed by Ekhohn to be made in the formula for the wet-and-dry-bulb hygrometer, wlileh would have important consequences if confirmed. The formula so modified would be a- = 77/- AB (/-/'), where x and f are respectively the actual vapour-pressure in the atmosphere and the saturation vapour-pressure at the temperature t' of the wet-bulb. A is the ordinary p^ychrometric constant, and r/ tlie co-efficient, le.s« than unity, whose insertion Ekholm advises in order to allow for diminution of vapour-pressure at the surface of the wet- IniU) h\ a hygroscopic action of the material covering it. It was shown that, if there were an appreciable hygroscopic action affecting the temperature of the wet-bulb, a perceptible difference would be observed between several thermou)eters covered with dif- ferent materials. The results recorded showed, however, that three wet-bulb thermouieters, covered respectively with silk, linen and cotton, agreed in their readings to within the limits of observation, which were 0.05 C, the thermometers being divided into tenth- degrees. In all, 63 sets of observations were given, each set compris- ing a comparison of the tln-ee wet-bulbs with a Regnault condensa- tion hygrometer. By the application of least squares to the niudi- tied formula, the value of // was found to be 0.9974, which is unity to the order of approximation possible in such experiments. Tlie conclusions arrived at were that the proposed change was not justitied by the evidence which Ekholm himself produced, and that a direct test showed the supposed basis of it to be incorrect. These observations, taken in May and June, were all under con- ditions of fairly high humidity, above 50 per cent, in every case, and consequently low values of the dift'erence t - t'. In order to test the formula under a more extended range of circumstances, the observa^ tions were resumed, and continued until December. No change was made in the conditions of exposure, nor in the method of procedure, both of which were fully described in the former paper. The cover- 1 Proc. Roy. .Soc. Victoria 24 (n.s.), Pt. II., lOll. 152 G. Smeal: ings of the wet-bulbs had been kept clean by periodical washing during the first series of experiments, but on resuming this was neglected until August 10, when 31 more sets had been obtained. It was then found that they were considerably soiled, and an examina- tion of the results indicated that this had seriously affected the readings. After cleaning, some superfluous portions were cut away, leaving the bulbs somewhat freer, and thenceforward the nrnt^'rials were regularly washed. The results herein detailed comprise only the observations since August 10, numbering 103 ; some figures obtained from the other 31 sets will be presented, as evidence of Ihe necessity for clean coverings to the wet-bulbs. During the last month of the work obsex'vations were mostly restricted to hot, dry days in order to gain experience of low humidities. The range of tempera- ture and humidity has thus been largely extended, the humidities now varying between 18.01 per cent, and 95.11 per cent., and the dry temperatures between 7.350 jv^d 31.350C, while the values of t-t' extend up to H.GOC. Observations. The wet-bulb readings are given in Table I., with the differences between them, the thermometers being numbered 2 (linen), 3 (cotton) and 4 (silk), as before. Table I. No. 2 3 4 •2-3 2-4 1 - 11.55 - 11.65 - 11.70 - —0.10 - -0.15 2 - 11.05 - 11.10 - 11.05 - — .05 - 0 3 - 11.65 - 11.65 - 11.70 - 0 - — .05 4 - 9.45 - 9.40 - 9.40 - .05 - .05 5 - 9.45 • 9.50 - 9.45 - — .05 - 0 6 - 9.85 - 9.85 - 9.75 - 0 - .10 7 - 8.45 - 8.50 . 8.50 - — .05 - — .05 8 - 9.15 9.10 9.10 - .05 - .05 9 • 9.15 9.10 9.10 - .05 - .05 10 - 10.55 - 10.60 - 10.55 - — .05 - 0 11 9.55 - 9.60 9.50 - — .05 - .05 12 ■ 11.85 - ■ 11.85 - 11.85 - 0 - 0 13 12.75 ■ 12.65 - 12.70 - .10 - .05 U 11.45 ■ 11.45 - 11.50 - 0 — .05 15 - 12.45 - 12.40 12.40 - .05 - .05 16 ■ 11.65 ■ • 11.55 ■ 11.65 - .10 - 0 17 11.15 - 11.00 - 11.05 - .15 - .10 18 12.55 12.45 - 12.50 - .10 - .05 19 • 12.65 - 12.65 ■ 12.70 - 0 - — .05 20 1 0.65 - 10.60 10.65 - .05 - 0 Fsi/chromefft (• Foriiinhi. 153 No. 2 3 i 2-3 2—4 21 ■ 10.45 - 10.45 - 10.45 - 0 - 0 22 - 11.25 - 11.15 - 11.20 - .10 - .05 23 - 10.40 - 10.40 - 10.45 - 0 - — .05 24 - 11.40 - 11.35 - 11.45 - .05 - — .05 25 - 13.90 - 13.90 - 14.00 - 0 - — .10 26 - 12.95 12.95 - 12.95 - 0 - 0 27 - 10.65 - 10.70 - 10.65 - — .05 - 0 28 8.75 8.80 - 8.80 - — .05 - — .05 29 - 7.35 7.40 - 7.40 - — .05 - — .05 30 - 9.35 9.40 - 9.40 - -^ .05 - — .05 31 - 11.25 11.25 - 11.25 - 0 - 0 32 - 13.80 - 13.90 - 14.00 - — .10 - — .20 33 - 13.50 - 13.60 - 13.70 - - .10 - — .20 34 - 12.45 - 12.55 - 12.60 - — .10 - — .15 35 - 7.85 7.90 - 7.90 - — .05 - — .05 36 - 9.95 - 10.00 - lO.OO - — .05 . — .05 37 - 10.70 - 10.70 - 10.70 - 0 - 0 38 - 12.3u 12.35 - 12.40 - 0 - — .05 39 ■ 13.35 - 13.30 - 13.40 - .05 - — .05 40 - 14.00 - 14.00 - 13.95 - 0 - .05 41 12,70 - 12.65 - 12.70 - .05 - 0 42 - 12.55 - 12.55 - 12.60 - 0 - - .05 43 - 13.15 - 13.05 - 13.10 - .10 - .05 44 - 11.35 - 11.25 - 11.35 - .10 - 0 45 - 11.85 - 11.75 - 11.85 - .10 - 0 46 - 13.55 - 13.55 - 13.60 - 0 - — .05 47 13.40 - 13.35 - 13.40 - .05 - 0 48 - 14.10 - 14.00 - 14.10 - .10 - 0 49 - 16.60 - 16.60 ■ 16.60 - 0 - 0 50 ■ 16.55 16.50 - 16.60 - .05 - — .05 51 - 13.90 - 13.80 - 13.90 - .10 - 0 52 - 12.25 - 12.15 - 12.20 - .10 - .05 53 • 14.50 14.40 - 14.50 - .10 - 0 54 - 10.55 - 10.50 - 10.55 - .05 - 0 55 10.95> - 10.90 - 10.95 - .05 0 56 9.65 9.60 - 9.60 - .05 - .05 57 ■ 11.35 - 11.25 - 11.35 - .10 - 0 58 - 14.30 - 14.20 - 14.35 - .10 - — .05 59 - 14.90 - 14.80 - 14.95 - .10 - — .05 60 13.90 - 13.80 - 13.90 - .10 - 0 61 - 14.00 - 13.90 - 14.(X) - .10 - 0 62 - 12.35 - 12.35 - 12.40 - 0 - — .05 (•)3 - 1 5.00 - 14.90 - 15.00 - .10 - 0 54 G. Smeal : No. 2 3 4 ■2 3 ■2 4 G4 - 7.75 - 7.70 7.80 - .05 - — .05 (33 9.75 - 9.70 9.80 .05 - — .05 06 - 10.85 - 10.80 - 10.85 - .05 - 0 67 8.85 - 8.85 8.90 - 0 - — .05 {\H 9.65 - 9.65 9.65 - 0 - 0 6'» 9.45 - 9.40 9.40 - .05 - .05 70 - 9.25 - 9.20 9.20 - .05 - .05 71 - 9.05 - 9.00 9.10 - ■ .05 - — .05 7-2 - 9.55 - 9.50 9.60 - .05 - .05 73 - 12.75 - 12.65 12.70 - .10 - .05 74 - 12.60 - 12.55 12.70 .05 - - .10 75 13.60 - 13.50 13.60 - .10 • 0 76 - 13.15 - 13.05 13.15 - .10 - 0 77 13.60 - 13.55 13.70 - .05 - — .10 7,s 13.40 - 13.40 13.50 - 0 - — .10 79 14.10 - 14.00 14.10 - .10 - 0 80 - 10.55 - 10.60 - 10.65 - — .05 - — .10 81 - 8.95 - 9.00 9.00 - — .05 - - .05 S-2 ■ 11.45 - 11.35 11.45 - .10 - 0 83 - 11.95 - 11.90 - 12.00 - .05 - — .05 84 - 13.15 - 13.05 - 13.20 - .10 - ^ .05 85 - 11.45 - 11.35 - 11.50 - .10 - — .05 86 - 17.20 - 17.10 17.20 - .10 - 0 87 - 9.15 ■ 9.00 9.00 - .15 - .15 88 • - 15.10 - 15.00 - 15.10 - .10 0 S!) 18.00 17. SO 17.90 - .20 .10 !)0 16.80 16.70 16.80 - .10 - 0 1)1 - 17.50 17.30 17.40 - .20 .10 !)•_» 13.50 - 13.40 - 13.60 - .10 - — .10 y:5 12.75 - 12.60 12.60 - .15 - .15 94 12.80 - 12.65 - 12.70 - .15 - .10 95 - 15.10 - 15.10 15.10 - 0 - 0 9(; - 16.10 - 16.10 - 16.10 - 0 - 0 !»7 16.50 - 16.50 16.40 - 0 - .10 98 16.20 16.10 - 16.15 - .10 - .05 99 19.25 ■ - 19.25 19.30 - 0 — .05 10(1 15.60 - 15.50 - 15.80 - .10 - — .20 101 12.40 12.40 - 12.50 - 0 • ■ — .10 10-i - 15.80 15.80 16.00 - 0 - — .20 10:? - 16.10 - 16.10 - 16.20 - 0 — .10 The ditt'erences are again very slight, and by no means comparable with thnse which would correspond to any appreciable hygroscopic action. In the case of linen and cotton, out of 103 pairs, 27 show Psi/c/iroiuefric Furniuld. 155 no difference, and only (> diffur l)y inoic than 0.1^; the n)ea.n dif- ference is 0.040, while the observahlc limit is O.Oo'. In the other case of linen and silk, 36 show a zero difi'ercnce, and only 9 show above 0. 1° difference, while the averaj^e is 0.015'^. ("onibininjx these with the observations already piiblished, we find the average differences in the two cases to be resj)ectively 0.03O and O.Ol^, while out of the large ninnber of differences only 10 in one case and 11 in the other are greater than a tentli f)f a degree. We must conclude from these figures that the value of the co- efficient -q is not perceptibly dependent on the nature of the covering used for the wet-l)ulb thermometer, this result holding true through- out a considerable range of temperature above zero, and under prac- tically all conditions of humidity. The full details of the observations are contained in the next table. Under the heading /' are given the mean values, where necessary, of the wet-bulb readings ; the pressure is given co^rrected for tempera- ture. Table II. No. t t' Dew-point 1! Wiml 1 - 10.60 - 11.65 - 6.80 - 765.8 - Fresh N. 2 - 17.40 - 11.05 - 3.85 - 764.8 - Light N. 3 - 15.20 - 11.65 - 8.20 - 761.0 - Strong N. i - 10.55 - 9.40 - 7.80 - 765.5 - Calm. 5 - 11.80 - 9.45 - 6.85 - 761.5 - Light 8. E. 6 - 14.20 - 9.80 - 4.40 - 764.6 - Light S. E. 7 - 11.45 - 8.50 - 5.35 - 766.1 - Very light S.E. 8 - 13.65 - 9.10 - 4.15 - 764.8 - Very light S.E. 9 - 11.60 - 9.10 - 5.95 - 764.8 - Calm. 10 - 14.75 - 10.55 - 5.00 - 760.6 - Gentle N. 11 - 14.75 - 9.55 - 5.55 - 759.5 - Light N. 12 - 16.70 - 11.85 - 7.95 - 762.6 - Strong N. 13 - 18.90 - 12.70 - 6.85 - 761.4 - Strong N. U - 17.60 - 11.45 - 6.55 - 761.6 Very strong N. 15 - 20.35 - 12.40 - 5.45 - 760.1 Strong N. IG - 18.60 - 11.60 - 5.75 - 760.7 - Very strong N. 17 - 17.50 - 11.05 - 4.75 - 753.4 ■ - N. breeze. 18 - 19.60 - 12.50 - 6.10 - 750.8 - N. breeze. 19 - 14.60 - 12.65 - 10.70 - 751.7 ■ - Calm. 20 - 12.20 - 10.65 - 8.60 - 762.9 - Veiy light S. 21 - 12.65 - 10.45 - 8.50 - 761.3 - Very light S. 22 - 12.40 - 11.20 - 9.85 - 763.3 - Very light 8. 23 - 11.85 - 10.40 - 9.25 - 763.2 - Very light S. 24 - 12.50 - 11.40 - 10.65 - 762.6 - Calm. 25 - 17. .30 - 13.95 - 11.1?) - 758.8 ■ N. l)reeze 56 G. Smeal : No. t t' Dew-jioilit B Wind 26 - 17.90 - 12.95 - 9.15 - 756.3 - Light N. 27 - 12.7U - 10.65 - 8.30 - 758.3 - Calm. 28 - 11.40 - 8.80 - 6.55 - 758.1 - N. breeze. 29 - 11.60 - 7.40 - 2.25 - 765.4 - Calm, 30 - 14.55 - 9.40 - 3.65 - 761.8 - Very light N. 31 - 15.85 - 11.25 - 7.35 - 759.2 - Light N. 32 - 18.40 - 13.90 - 9.60 - 757.5 Cahi). 33 - 20.45 - 13.60' 7.35 - 751.8 - Fresh N. 34 - 20.75 - 12.55 - 4.35 - 750.0 - Light N. 35 - 10.85 - 7.90 5.55 75<).4 - S. breeze. 36 - 12.20 - 10:00 - 7.80 - 765.3 - Light S. 37 13.35 - 10.70 - 6.15 - 764.3 - Calm. 38 ~ 16.15 - 12.35 9.70 - 760.7 - Very light N. 39 - 18.30 - 13.35 - 8.G5 - 758.5 - Very light N. 40 - 17.90 - 14.00 - 10.50 - 758.5 - Calm. 41 - 18.20 - 12.70 7.95 - 756.8 - Gentle S. 42 - 16.05 - 12.55 - 9.80 - 758.7 - Calm. 43 17.55 - 13.10 - 10.10 - 757.5 - Calm. 44 - 13.45 - 11.30 9.50 - 760.2 - Very light S. 45 - 16.15 - 11.80 - 8.15 - 758.8 - Very light S. 46 - 20.25 - 13.55 - 7.45 - 760.3 - Fresh N. 47 - 19.55 - 13.40 - 7.45 - 759.1 - Very light N. 48 20.05 - 14.05 - 8.40 - 757.6 - Gentle N. 49 - 21.05 - 16.60 - 13.55 - 754.0 - Light N. 50 - 21.80 - 16.55 - 12.95 - 751.4 - Gentle N. 51 - 17.00 - 13.85 - 11.35 - 754.2 - Gentle S. 52 - 15.25 - 12.20 - 9.60 - 759.8 - Gentle S. 53 - 20.95 - 14.45 - 9.80 - 756.6 - N. breeze. 54 - 14.55 - 10.55 - 6.25 - 760.3 - Light N. 55 - 14.25 - 10.95 - 8.45 - 764.4 - Light S.W. 56 - 13.45 - 9.60 - 5.95 - 764.7 - Gentle S. 57 - 15.25 - 11.30 - 7.85 - 762.9 - Very light S. 58 - 18.60 - 14.30 - 11.35 - 762.1 - Very light S. 59 - 21.20 - 14.90 - 9.40 - 761.2 - Vei7 light N. 60 - 16.60 - 13.85 - 12.05 - 760.0 - Very light S. 61 - 16.80 - 13.95 - 12.15 - 759.4 - Very light S. 62 - 15.35 - 12.35 - 9.75 - 756.0 - Light N. 63 - 19.25 - 14.95 - 11.05 - 753.5 - Gentle, variable, 64 - 12.70 - 7.75 - 2.45 - 762.7 - Fresh S.W. 65 - 14.75 - 9.75 - 3.75 - 761.0 - Gentle W. 66 - 15.85 - 10.85 - 5.60 - 759.5 - Light S. 67 - 13.15 - 8.85 - 4.40 - 763.2 - Light S. 68 - 14.25 - 9.65 - 3.15 - 762.3 - Light, variable. Pyschronictrlr For in ula. 1 57 No t fi Ofw jioiiit r. Wind 69 - 13.15 - 9.40 - 5.85 - 764.8 ■ - S. breeze. 70 - 14.20 - 9.20 - 3.65 - 765.0 ■ - S. breeze. 71 - 13.85 - 9.05 - 4.05 - 766.2 ■ ■ Lirrht S. 72 - 14.35 - 9.55 - 4.85 - 765.5 - ■ Lifrht S. 73 - 19.00 - 12.70 - 6.20 - 761.9 ■ Strong N. 74 - 19.80 - 12.60 - 5.45 - 761.0 - ■ Strong N. 75 - 22.45 - 13.55 - 5.95 - 758.6 ■ ■ Strong N. 76 - 21.95 - 13.10 - 5.05 - 758.1 • - Light N. 77 - 23.60 - 13.60 - 5.25 - 756.4 Strong N. 78 - 25.65 - 13.45 - 3.85 - 754.8 - Strong N. 79 - 24.40 - 14.05 - 4.95 - 754.8 ■ - S.W. breeze. 80 - 15.15 - 10.60 - 6.70 - 755.0 ■ - Light S. 81 - 14.05 - 9.00 - 4.15 - 759.8 ■ ■ Light S.W. 82 - 15.55 - 11.40 - 7.40 - 765.9 - Very light S. 83 - 15.75 - 11.95 - 8.90 - 765.0 - ■ Gentle S 84 - 17.20 - 13.15 - 8.95 - 765.5 ■ ■ Light S. 85 - 15.50 - 11.45 - 7.45 - 766.0 ■ ■ Gentle S. 86 - 29.90 - 17.15 - 5.75 - 755.2 ■ Strong N. 87 - 13.75 - 9.05 - 5.35 - 768.9 • - S. breeze. 88 - 23.80 - 15.05 - 8.60 - 758.7 ■ ■ Light N. 89 - 31.20 - 17.90 - 7.35 - 755.3 - Light N. 90 - 31.35 - 16.75 - 4.15 - 755.3 - Gentle N. 91 - 30.95 - 17.40 - 5.95 - 755.3 - Gentle N. 92 - 18.20 - 13.50 - 9.40 - 759.5 - Gentle S. 93 - 17.85 - 12.65 - 7.90 - 759.0 - ■ Light S. 94 - 17.10 - 12.70 - 8.80 - 758.6 ■ - Light S.W. 95 - 24.35 - 15.10 - 7.85 ■• 754.5 ■ ■ Strong N. 96 - 27.40 - 16.10 - 6.95 - 752.1 - - Strong N. 97 - 23.60 - 16.45 - 10.40 - 755.6 ■ ■ Light S.W. 98 - 21.90 - 16.15 - 11.55 - 754.7 ■ ■ Very light S.W. 99 - 28.10 - 19.25 - 13.90 - 750 ■ - Light N. 100 - 26.10 - 15.65 - 7.05 - 745.2 ■ - Strong N. 101 - 21.90 - 12.45 - 2.60 - 752.5 • - Very light N. 102 - 24.55 - 15.85 - 9.60 - 749.8 ■ - Gentle N. 103 - 27.90 - 16.15 - 5.65 - 749.5 ■ - Very light S.W. Method of Reduction. In dealing with the former series of observations, the individual values of the coTis'tant A were determined from the formula ;c = /- AB(/-/'), taking the vapour-pressures x and f from Broch's tables. The arith- metic mean of these values was taken to be the most probable, or most 158 G. Siueal: suitable, value of A to be used in the formula. Tlie same method was followed at first in reducinf; the present series, and considerable time was spent in ofroupin^; and examining the values of A before it was discovered that the method was incorrect in principle, though yield- ing approximately correct results so long as the number of observa- vations was not too small. By the application of the method of least squares to the more general formula .V --'///- AB(7-/'), in which tliere are two constants, rj and A, to be determined, a single value of each is obtained to represent the whole set of observations. The corresponding formula with these numerical co-efficients has the property that it gives the value of .c with the least probable error from observations of the values of the other quantities concerned.. Now this is evidently the result which is required ; in practice the psychrometer is used alone, and we are required to determine from its readings the actual value r of the vapour-pressure in the air. We therefore seek a fornmla of the recognised type with such numerical co-efficients that the value of r will in the long run of similar trials be given with the smallest possible margin of error. If the simple formula X = f - AB{/ - O, be used, nr, in other words, if the co-efficient 7/ be assumed to be unity, this end will be attained by a direct application of least squares to the equation as it stands, and not to the severally determined values of the constant A. Taking the arithmetic mean of the values of A is an application of least squares which makes the errors of A a minimum, instead of those of r. The correct value of A which is appropriate to the whole set of observations is therefore given by the equation where 3 is put for convenience in place of B (f - /'). Since the indivi- dual value of A is given for each obsei-vation by A = (/- .r)/s, the correct result is the same as would be obtained by weighting the individual values proportionally tn z^, that is practically to (f-t)'^. Since t ■ f \s freiiuently small, and is in the denominator, this makes it seem probable that the correct value for the present purpose would also be a better value than the simple mean, if the object were to determine A with the least margin of error. (This latter might be the case, for example, if the formula were assumed to be absolute and not merely an a[>i)roximatioii of varying accuracy : then the value of A might be considered as an aid to investigation of the projjerties of air or water-va|)Our. It need haidly bo said that sucli a procedure would be absurd.) I'fiijcli roiiirl rlc Fornndii. 159 When this methnd of reduction was first recoj^nised as more (•orret-t. it was not known that any otlier experimenter had used it. lUit on investigation, the same method, with a small alteration, the reason for which I oould not discover, was found given without remark in Fen-el's paper on '' Psychrometrical Tables,"! though there are some obvious misprints. The method used by Regnault and most others is not stated in their papers : on the other hand, Angot2, Pernter' and Svensson'' certainly used arithmetic mean values. For this reason I have thought it well to call attention to the discrepancy between the two methods, though the actual results may not be much different in a good series of observations. For investigating the effects of wind-velocity and other circumstances, the same method is appropriate, and was used in all further study of my own observa- tions. Results. The value of A derived from the 103 observations recorded in this paper is 0.0007232 ± 0.0000048. Taking the mean of individual values, the result is higher — viz., 0.01M>7330 ; but the probable errors of a single observation of x in the two cases are respectively 0.229 mm. and 0.231 mm., so that the difference in the value of A is of small practical moment. The value given in the previous paper was 0.0007228 : using the more correct method of reduction it would become 0.0007167. From the whole set of 166 observations taken together the resulting value is 0.0007227 ± 0.0000043. Thege various values all agree when only two significant figures are taken, and that is all that can be regarded as really valuable. The final result is then that A = 0.00072, with a probable error of about half a unit in the last place, i.e., (72 ± .1) x 10—5. The equation thus becomes x = f-0.00072}i(f-O- Applying the two-constant formula, the values of r; and of A are found to be 0.9877 and 0.0006967 respectively. For the €3 observa- tions of the earlier series. // had the value 0.9974. The lower value now obtained might be regarded as due to incomplete saturation of the air leaving the wet-bulb, or some similar failure in the action which is assumed in theory to occur. But it seemed scarcely likely that this would be more noticeable in the present «eries than in the other one, since the later observations were distinctively superior in other respects. In order to determine whether the lessened value might be due to the observations at low humidity, the series was 1 Kerrel, Report of Secretary of War, V.S , 1886, vol iv., p 233 2. Aiijrot, J de Physicpie, 1, l!SS-2, p 119 3. Fernter, Sitzunu'sber. Wiener .\kad. 87, 188;i 4. Sveiisson, Meteor. Zeitschr. 1896, p. 201. 160 G. Smeal: divided into two groups, in which the humidities were all vibove and all below 50 per cent, respectively. In the earlier series all humidities were above 50 per cent. The application of the formula to each' group separately gave 77 = 0.9589 below 50 per cent, humidity and 0.9715 above. Both these values are less than that obtained for the two groups combined, instead of being one greater and one less, as we might expect. Such a result seems to indicate very clearly that the value of the second constant -q is almost entirely dependent on the nature and distribution of the accidental errors of the first constant A, so that it will vary arbitrarily with the particular group of observations chosen. In other words, there is no physical justifi- cation for the insertion of a second constant. It is probable that its value, determined by trial as above, would always be less than unity, but this does not indicate the existence of any phenomenon which is not implicitly allowed for by the simple formula. The following tables will show that the insertion of it is not attended by any increase in accuracy, provided the observations are good. It may possibly be permisisible to say that a series of observations which yields a value of 7) markedly different from unity is unsatisfactory in some respect. In Table III. the values of x observed are compared with those deduced from the two formulae, according to the equations a:i=/-0.0007232B(/-/') and x, = 0.9877/- 0.0006967B(/-/''), and the differences, or errors, S^Xi = x - x\ and AX2 = x-Xo, are also given. Table III. No. X ^'i X., A^l ^*2 1 7.36 - 7.46 - 7"43 - — 0.10 - —0.07 2 - 6.01 - 6.29 - 6.30 - ■ — .28 - — .29 3 - ■ 8.10 ■ ■ 8.25 - 8.19 - — .15 - — .09 4 ■ 7.88 . ■ 8.14 - 8.06 - — .26 - — .18 5 - 7.39 - 7.52 - 7.45 - — .13 - - .06 6 - ■ 6.24 - 6.59 - 6.57 - — .35 - — .33 7 ■ 6.67 6.64 6.60 - .03 - .07 8 - 6.13 - 6.09 - 6.(X^ - .04 - .05 9 6.95 • 7.23 - 7.17 - — .28 - .22 10 - 6.51 ■ 7.17 7.13 — .66 - — .62 11 - 6.76 - 6.01 6.01 .75 - .75 12 ■ 7.96 - 7.66 - 7.62 - .30 - .34 13 - 7.39 - 7.51 - 7.50 - • — .12 - — .11 14 ■ 7.24 ■ ■ 6.67 - 6.68 - .57 - .56 15 6.71 6.34 - 6.37 - .37 - .34 16 ■ 6.86 6.31 - 6.33 - .55 - .53 Psi/c/i romclrir Foriaala. 161 No. X =^1 . .T._) A a-, A .r-i 17 - 6.40 - 6.29 - 6.29 - .11 .11 IS - 7.02 - 6.92 - 6.94 - .10 - .08 19 - 9.58 - 9.83 9. 74 - — .25 - — .16 20 - 8.32 - • 8.68 - 8.60 - — .36 - — .28 21 - 8.27 - 8.21 8.13 - .06 - .14 22 9.05 - 9.24 - 9.14 - — .19 - — .09 23 - 8.69 ■ 8.59 ■ - 8.50 - .10 - .19 24 - 9.54 - 9.42 - 9.33 - .12 - .21 25 - 9.87 - ■ 10.00 - 9.92 - — .13 - — .05 26 - 8.63 • - 8.39 • - 8.35 - .24 - .28 27 - 8.16 - • 8.42 - 8.34 - — .26 - - .18 28 ■ 7.24 7.00 ■ €.96 - .24 - .28 29 ■ • 5.37 5.35 ■ 5.34 - .02 - .03 30 - 5.92 ■ - 5.94 - ■ 5.94 - — .02 - — .02 31 • 7.65 7.40 • 7.38 - .25 - .27 32 - 8.90 - 9.34 9.29 — .44 - — .39 33 ■ 7.65 - 7.86 - 7.85 - — .21 - — .20 34 - 6.22 - 6.37 - 6.41 — .15 - — .19 35 6.76 - 6.33 - 6.29 - .43 - .47 36 - 7.88 - 7.92 - 7.86 - — .04 - .02 37 ■ 7.05 - 8.12 - 8.05 —1.07 - —1.00 38 8.96 - 8.59 - 8.54 - 0.37 - 0.42 39 - 8.35 - 8.67 - 8.63 - — .32 - — .28 40 - 9.45 - 9.74 - 9.67 - — .29 - — .22 41 - 7.96 - 7.91 - 7.89 - .05 • .07 42 - 9.02 - 8.90 8.84 - .12 - .18 43 - 9.20 - 8.77 - 8.72 - .43 - 48 44 - 8.84 - 8.79 - 8.71 • .05 - .13 45 - 8.07 - 7.91 - 7.87 - .16 - .20 46 - 7.70 - 7.86 - 7.85 - — .16 - — .15 47 - 7.70 8.05 - 8.04 - — .35 - — .34 48 - 8.21 - 8.63 - 8.60 - - — .42 — .39 49 - 11.54 - 11.61 - 11.53 - ■ — .07 - .01 50 - 11.10 - 11.15 - 11.08 - ■ — .05 - .02 51 - 10.00 - 10.05 - 9.97 — .05 - .03 52 - 8.90 - 8.89 - 8.8:^ .01 - .07 53 - 9.02 - 8.67 - 8.65 - .35 - .37 54 - 7.10 - 7.28 - 7.24 ■ — .18 - — .14 55 - 8.24 - 7.92 - 7.86 .32 - .38 56 - 6.95 - 6.77 - 6.74 .18 - .21 57 - 7.91 - 7.79 - 7.75 ■ .12 - .16 58 - 10.00 9.75 - 9.69 .25 - .31 59 - 8.78 - 9.12 - 9.10 - — .34 - — .32 16'i G. Sinnd: No. X *i x.. A^i AT,': 60 10.47 - 10.26 - 10.17 - .21 - .30 61 - 10.54 - 10.27 - 10.18 - .27 - .36 62 8.99 9.04 - 8.97 - — .05 - .02 63 - 9.80 - 10.29 - 10.21 - — .49 - — .41 64 - 5.44 - 5.13 - 5.13 - .31 - .31 65 - 5.97 - 6.24 - 6.23 - — .27 - - .26 66 - 6.78 - 6.92 - 6.90 - — .14 - — .12 67 - 6.24 - . 6.09 - 6.07 - .15 - .17 68 - 5.72 - 6.39 - 6.38 - — .67 - — .66 69 - 6.90 - 6.71 - 6.67 - .19 - .23 70 •■ 5.92 - 5.89 - 5.89 - .03 - .03 71 - 6.09 - 5.92 - 5.91 .17 - .18 72 - 6.44 - 6.21 - 6.20 - .23 - .24 73 - 7.07 - 7.45 - 7.45 - — .38 - — .38 74 - 6.71 - 6.89 - 6.90 - — .18 - - .19 75 - 6.95 - 6.66 - 6.70 - .29 - .25 76 - 6.53 - 6.36 - 6.40 - .17 - .13 77 - 6.62 - 6.11 - 6.17 - .51 - .45 78 - 6.01 - 4.81 - 4.91 1.20 - 1.10 79 - 6.49 - 6.27 - 6.33 - 0.22 - 0.16 80 - 7.31 - 7.03 7.00 .28 - .31 81 - 6.13 - 5.78 - 5.77 - .35 - .36 82 - 7.67 - 7.73 7.70 - — .06 - — .03 83 - 8.49 - 8.30 - 8.24 - .19 - .25 84 - 8.52 9.01 - 8.96 - — .49 - — .44 85 - 7.70 - 7.82 - 7.78 - — .12 — .08 86 - 6.86 - 7.5S - 7.65 - — .72 - — .79 87 - 6.67 - 5.97 5.95 .70 - .72 88 - 8.32 - 7.91 7.92 .41 - .40 89 - 7.65 7.98 - 8.05 - — .33 - — .40 90 - 6.13 - 6.20 - 6.32 - .07 - — .19 91 - 6.95 - 7.3f) 7.45 ■ — .41 - — .50 92 - 8.78 8.93 8.88 - — .15 - — .10 93 7.94 - 8.04 8.01 ■ — .10 - — .07 94 - 8.43 8.51 - 8.46 - — .08 - — .03 95 - 7.91 - 7.71 - 7.74 .20 - .17 96 7.44 - 7.45 - 7.51 - — .01 - — .07 97 9.39 - 10.00 - 9.98 - — .61 - -- .59 98 - 10.13 - 10.51) - 10.45 - — .37 - — .32 99 - 11.81 - 11.73 - 11.70 .08 .11 100 7.50 - 7.58 - 7.63 - — .08 - — .13 101 - 5.50 - 5.61 - 5.67 - — .11 - — .17 102 - 8.90 - 8.66 - 8.68 .24 - .22 103 - 6,81 - 7.27 - 7.33 - — .46 - — .52 I'sjiflt roiiH'l rif Form (il l)ofli Dr. Love ann Professor Lyle for the kindly advice and assistaiuf whiih have always been placed at my disposal. [Pkoc. Koy. Soc. Victoria, 25 (N.8.), Pr. 1., IDi:.'., Art. XIII. — On Some New Species of Victorian Marine MoUit.sca. Bv J. H. GATLIFF and C. J. GABRIEL. (With Platf IX.). [Read nth July, 1912.J This ])ai)t'r contains the description of three new species of bivalve shells. Montacuta dromanaensis, sp. nnv. (Pi. IX., Figs. 1-4) Shell minute, sordid white, very inequilateral, tiuely ornamented with concentric, irre;jrularly undulatini-oadt-r form, and the peculiar capping of the umbo, this latter feature serving as a useful recognition mark. From its Victorian congeners it is easily distin- guished by the narrow beam. Consistency of shape is not apparent, variation existing as regards depth and Avidth of the convexity. The measurements of our few specimens differ considerably, one valve attaining the dimensions of 3.50 x 2.25 mm. Type in Mr. C. J. drabriel's collection. EXPLANATION OF PLATE IX. Fig. L — Montacuta dromanaensis, sp. nov. Interior, left valve. Fig. 2. — Montacuta dromanaensis, sp. nov. Interior, right valve. Fig. 3.^ — Montacuta dromanaensis, sp. nov. Exterior. Fig. 4r.— Montacuta dromanaensis, sp. nov. Exterior, dorsal view. Fig. 5. — Condylocardia chapmani, sp. nov. Interior, left valve. Fig. 6. — Condylocardia chapmani, sp. nov. Interior, right valve. Fig. 7. — Condylocardia chapmani, sp. nov. Exterior. Fig. 8. — Condylocardia chapmani, sp. nov. Exterior, dorsal view. Fig. 9. — ^Modiiilaria rhyllensis, sp. nov. Exterior. Fig. 10. — Modiolaria rhyllensis, sp. nov. Exterior, dorsal view. The figuics are variouslv magrnified. t'roc. U.S. Viotoriii, litli'. I'l:ito IX. [Proc. Koy. Soc. Vicn.KiA, 25 (N.^.)- ^'-^'^'i' 1-. I'Jl^^J- Art. XIV. — Additions to and, AltcniHon-i in the Cutcdogne of Victoriii II Mdriiic MuUiisca. By J. H. GATLTFF and C. J. GAinilEL. [Kead 11 til July, 1912]. This paper deals with '2i species ; 5 are new, 2 are altered names, and 17 are known species. The new species include 2 Ischnochitons kindly described for us by Mr. A. F. B. Hull, of Sydney, who has made the Poly plucopliora his special study. Tlie named Victorian I'ol i/pldcopliord now total 46 species, and the total number of mol- lusks catalogued is 962. We have again to thank our former helpers in our work for their kind assistance. Sepia capensis, d'Orbigny. 1826. Sepia capensis, d'Orbigny. Seichis, pi. 7, f. 1-3. • 1835-1848. Sepia capensis. 1^'erussac and d'Orbigny. Hist. Nat., Ceph., p. 278, pi. 7, f. 1-3, pi. 12, f. 7-11, pi. 17, f. 18, 19. 1879. Sepia capensis, Tryon. Man. Conch., vol. i., p. 198, pi. 94, f. 440-442. 1912. Sepia ca]>ensis, Chapman. V.N., vol. xxix., p. 24, pi. 1, three figures. Hah. — Torquay, Grant Coast (F. (luipman). Shorehan), Western Port. Obs. — Mr. Chapman gives the following dimensions of a typical specimen: — Length, 120; breadth, 42; greatest thickness 10.5; the mucro from base of attachment to apex, 6.5 mm. Sepia latimanis. (,^)uoy and (4ainuird. 1832. Se])ia latimanus. (,^>u, 401. 1912. Sepia latimanus, Chapnum. V.X., vol. xxix., p. 25, 1)1. 1, three figures. Hdh. — Torquay, Grant Coast (F. Chapman). Ohs. — Mr. Chapman states tlmt a typical specimen from Torquay measures : — Length, 135 ; greatest breadth, 47 ; greatest thickness, 13.5 mm. 170 Gatlijf and Gabriel: TURRICILA HELLAI'RTA. VercO. 19C9. Mitra bellapicta. Verco, T.R.S., S.A., vol. xxxiii., p. :337, pi. 25, f. 1. //^//y.— Wt-steni Port. 06s. — Size of type: Length, 9.'6 ; breadth, 5.1 niiu.. Columella quadriplicate. The author remarks: "This may be a variety of M. vliirfa, A. Adams (Yolutomitra), close to M. tveldii, Tenisou-Woods." Marginella nympha. Brazier. 1894. Marginella nympha. Brazier. P.L.S., N.S.W., vol. ix. (2nd seri&s), p. 168, pi. 14, f. 2. Hab.—Vort Albert (T. Worcester). Obs. — Size of tyi)e : Length, 1.75 ; breadth, 1 mm. '" Having much the shape of M. ontJiun, spire immersed." Ma.NGILIA HILIXEATA, AugaS. 1871. Clathiirella bilineata, Angas. P.Z.S., Loud., p. 18, j.!. 1, f. 23. Hah.^Vori Albert, (T. Worcester). Obs. — ^Size of type : Length, 4 ; breadth, 1.5 mm. Our single specimen is a little larger. We consider this species to be a Manyilld, and it somewhat resembles M. •s(i/iit-t/(il/ONTA JACKSONIBNi^IS, AnfTas. 1(%7. Mysia (Felania) jacksoniensis, Antern Pfirt. [Pkoc. Koy. Soc. Victokia, 25 (N.S.). l'^'- !•> I'Jl^]- Ak'I'. XV. — Note.<< on fStrvngi/h(i rk" EitcdJijpfs. By ROYSTON DREW, HEBER GREEN and P. R. H. 8t. JOHN. (With Platt-s X and XI). [Read 11th July. 1912]. I. — The Occuprence of Eucalyptus Cons\den\a.r>aL (Ynfchili-) in the Lower Yarra District. For some years past one of us has had under observation near Eltham a single " stringybark "' tree which was evidently not E. macrorhynclia, nor any of the other common species known to be pre- sent in that district. About eighteen months ago another specimen was found near Lilydale, presenting considerable differences both in the size and shape of its carpels and even, as we have since found, in the oil dis- tilled from its foliage. We have since proved that they are both forms of E. Consideniana, the " Yertchuk " discovered by A. W. Howitt^ in Gippsland, and described by J. H. Maiden,^ Vjut this is the first record of its appear- ance so near Melbourne, and our verdict as to its identity has been confirmed by Mr. Maiden. The tree itself grows on the poor soil overlying the silurian shales and resembles the stringybarks of the district {E. marrorJti/iicJia) in general appearance and height. The bark, however, is softer and less furrowed, and the leaves are nar- rower ; in these respects it resembles the messuutte {E. ohliqua), but this does not occur near Eltham. The carpels also usually differ from those of E. iiian-orlii/NcIia and dther allied species in possessing a red rim and in not being domed. The usual difficult}' of discriminating between the various ■" stringy- barks " was accentuated bj^ the consideral)le vaiiations shown, especially by the carpels. (See Plate X.) These variations, which will be referred to later, are much greater than are indicated l)y Maiden, and it seems advisable to amplify his deseription. In our endeavour to identify the tree and to decide wlicther the various forms observed were of one species (inly, we sought further information in three directions. 1. Trillin. Ko_v. Soc. Vic, ii., p. 82. 2. Crit. rtev., vol. i., p. 312, .and Proc. l.iiiti. Soc. N..S.\V., I!l(i4, |i. 47.'>. " Strhvijilxiriy I'Jii.r(d;//>ts. 177 We examined (1) the seedlinffi. 179 Fi"-. I. lo()°C 2()() I 27ii Aronuidendrene. 2«(» cl-pineiie. l-piuene. Phellan- Eiicalyptol. drene. 1). = E. dextropinea (d = -877, a = + 38°). E. = E. cagenioidcs (d = -913, a = +4°) L. = E. hievopinea (d = "870, a = - 47°). ' Ca. = E. capiiellata (d = •917, a = + 4°) VV.= E. Wllkinsoniana (d - "894,0 = -24°). Ma. = E. man- . 17 - 14 - 2 7 ^'^- 9.6 S .83 s ' Ih. - - - . _ . 1.2 ''• 2.50) 2.1) III. - 7.5 - — - 0.5 - — - 1.(5 We were unable to detect pinene or endesmol in any sample. 1. Smith, Jonrri. Chem. Soc. (1898), 73, 697. " Strliiijijbark" Eacalypts. 181 Fi-. II. 1(K» 1 1 ■■ 1 1 1 1 II II 11 Hill ..... .^ , „., .i_ ^-^^ ^-^ SO S^ cl i cm CB ^ ^ X ()U 1 L a ^40 20 ^ loO'c J 160 170 I j ISO 190 Pinene. Phellandrene. Eiicalyptol. 200 210 220 230 2-40 Mu = JB. MuellericDia : C Aromadendial. C ir., Cm. = -&'. Consi'JeniiUia. The distillation curves ol)tained for three of the oils examined are jriven in Fig. II., and will lie seen to fall between those of the two classes of striugybark oils shown in Fig. I. There is undoubtedly a wide variation here, as well as in the optical rotation, partially, though not quite, bridging the gap between this species and others closely related. It will be of interest to compare this variation of chemical charac- teristics with that shown by the carpels so largely used by mor- phologists as a basis for the classification of the eucalypts. Of the carpels figured in Plate X., No. I. was forwarded to one of us by Mr. J. H. Maiden, as a type of the species occurring near Metung, Gippsland ; it can be almost exactly matched by a carpel of E. Siehtriana: Nos. 2-9 were all collected from one single tree, that growing at Eltham, and from which oils la. and lb. were dis- tilled, and they also have been matched by carpels from eight different species as indicated. No. 10 grew on a Lilydale tree and the divergence exhibited in the chemical composition of the oil is seen to be more pronounced in the shape and size of the carpel, which clo.sely resembles that of E. mdcrorhi/ncha. Such a wide variation as we have found is not indicated in J. H. Maiden's description of the species, nor in the accurate and detailed field notes of Dr. Howitt, where he pictures the Yertchuk as he saw it in (lippsland. It may be noted that the latter describes the timber 182 Drew, Green and St. John: as beiiie67>'f gravity, 0.87 to 0.91; optical rotation --lo^ to — J6>0; refractive inder, l.^TO to l.JfSO. It is usually. 184 Drew, Green and St. John : tlioiKjli not alwoys, soluble in one or more volumes of 80 per cent, alcohol. It con.sist'< essentiall ij of pliellaiidrene with ^onie aroma- dendretie and from 2.5 to 10 per ceni. of eucahj idol. Tilt leaves coii'tain liffh or no n) ijrficohtri n . II. — The Oil of Yellow '' ^\.v\ng\/bQ.Y*k'^ ( Eticabjpfn.? Marlhriana). As it had been suggested that the Yertcliuk trees described in the preceding section were forms of the yellow stringybark, it seemed desirable to make a direct comparison of their oils. The oil of E. Mueller iana has not been described by Baker and Smith, nor does this species grow nearer to Melbourne than Southern Gippsland ; but, by the courtesy of Mr. H. Mackay, Conservator of Forests, who has had a supply of the foliage collected for us at Yarram, we have been enabled to distil and examine the oil from the leaves of two trees, one mature and the other a sapling. The oils from these two ti"ees were almost identical excejJt for an insignihcant difference in colour (a brilliant greenish blue), although the yield from the mature foliage was twice as great a? from the sapling. This identity is a striking confirmation of the reliability of the composition of the oil as a specific characteristic. The table of physical properties of these two samples and of other oils obtained from the ordinary or red stringybark [E. macror- liijnrlia)^ still further illustrates this consistency. TABLE 111. Physical Constants uf .Stkinuvbauk Uil!s. E. Mueller iana — ... , I'liceiitiiyt Soluijilitv .Spfi-ilif Optical liufi-iictive Locality. Date. ^.j^^,,, in akolio'l. .^■ravit.v. rotiitioii. imlt-x. Sapling - Yarram - Nov., U»ll - 0.40 - insolul)k' - U.«S7 - -H'O" - l.il^^o in HO p.c. Mature - „ - „ - 0.80 - - O.HM - -fL'L'" - 1.4-7;ilile tlicir s,\ steiu.itic chemical examination and fractional distillation, Imt their physical constants may be compared with the results given by Baker and Sniitli (lUscairb on the Kncidv |it>. y. U7) for trees (frown in .New South Wales. Proc. R.S. Victoria, 1<)12. IMmI.' X. ^ -^p N*^ ^" 7 i 8. 9. Photograph shewing variation of fruits of Eucalyptus Consideniana, and comparison with other species Proc. R.S. V'ictoiia, 1912. Plate XI. E. pilulaii.s ; E. Cunsiileiiiaua ; E. eugfiiioules. E. Consideuiana ; E. obli(|iia ; E. Miielleriaua ; E. luacrorhyneha. Eucalyptus seedlings (about six months old). " Sh'til(Ji/h(irk" hjli.rdlijptx. 185 Fractional Distillatinii of Oil of ?]. M inlhrldiid. Fraction. I'erct'litujji'. Hcfractivf Index. 0|>ti<^al Kotation. 1550— 160O 30 1.4640 + 210.2 1-60O— 1610 20 1.4640 + 210.6 1610—1650 20 1.4645 + 190.5 1650—1900 10 1.4675 + 16o.:5 190° 2050 8 1.4720 ± 00 The yellow stringyljark oils consists mainly of dextropinene althouj^h phellandrene is also presdnt, as may be seen from the graph of its fractional distillation (Fig. II.) ; this fact at once absolutely distinguishes it from ?J. ('(iiiside/iiaiui, which is chieHy camposed of the laevo- rotatory phellandrene, and from B. inarror- hyiicha, which contains considerable amounts of eucalyptol and but little pinene. Hence the chemical comj>osition of the nils (also shown graphically by their distillation curves in Figs. T. and II.) places E. Maelleriana in one division of the '" stringybarks '" with E. dtitropinea, E. laevo- pinen and E. \ViJki/i-so/iinn. 65. Verco, 1906, Trans. Koy. Soc, S. Austr.. vol. XXX., p. 209. Obstrvatioiis. — The present record is the tirst occurrence of this species in the fossil state. It is of great interest to hnd it so low down as the janjukian, to which stage I refer the fossiliferous iron- stone of the Fleniington Railway cutting. Although the fossils are in the form of casts, the moulds retain very faithful impressions of the external surface of the shell, which can be examined positively by means of a wax stjueeze. The internal cast in ironstone also exhibits concentric markings and interned marginal band, charac- teristic of Actnaea. In Hall and Pritchard's list of Flemington fossils " Acniaca sp. afi'. A. rostdtd " [Sow.], is cited, but that form has a larger numl)er of radial ribs than the present one.i Aniuita octuradiata as a living species has the following distribu- tion : — West Coast of the South Island, New Zealand; Port Phillip, Victoria ; Port Jackson (Maroubra Bay), New South Wales. Occurrence. — Tertiary ; janjukian series. Ironstone beds at the Flemington Railway cutting, Melbourne. Specimens collected and presented by Mr. J. Sidney Green. Fam. TlRBINIUAK. Genus Astralium, Link. Sub-genus Imperatop, Moutfort. AstrdUuin (l/iiperdtor) intdo^ni in, sp. nov. (Plate XII., Fig. 3.) Dtscriptiun. — ^Shell moderately large, trochoid, somewhat de- pressed, with an apical angle of 120<* ; earliest stage of shell nearly smooth, followed l>y three moderately iutiated whorls. Periphery, when perfect, bearing 10 flattened, spinose processes. Surface of shell-whorls ornamented with hue, transverse, undulating wrinkles, which tend to become tubercles at the junction with the sutural lines. Surface of spines relieved by fine, curved striae pointing anteriorly. Inner area of whorl gently inflated, flat at the sutures, and depressed to form a keel around the external margin. The tracery on the spines of the inner whorls barely covered up by the successive turns of the shell, and seen on the external border of the inner whorls. Base of shell concealed by matrix. 1 Proc. Roy. Soc. Vict., vol. ix. (ii.s.), 1897, p. 20!). 188 Frederick i'kapman : Diin('H'resent species arc found at Table Cape. A loniparatively long series in the Dennant col- lection shows all gradatitnis, from a shell with stepi)ed whorls to tliat with straight sides. The chief distinctions of T. atkinsoni are the even contour and the broad, sul)carinate base. In the National Museum collection there is a specimen of this subspecitic form in J M;u-t.vii, :e as the Tal)le raj)e beds, is a new one for the above form, since it has hitherto been restricted to the hitter plate. Ocrurrence. — Tertiary ; janjukian. 13ird Rock Cliffs, Torcpiay. Coll. bv tlie kite Mr. J. F. IJailev. Fam. SOLARIIDAE. Genus Homalaxis, Deshaycs. Hoinahicis jyraemeridioimlis, sp. nov. (Plate XTI., Figs. 4-6.) Description. — Shell small, compressed, subcircnlar ; flat above, rather deeply concave below, side hollow. Protoconch smooth, in- flated, consisting: of about one turn ; remainder of shell consisting; of three whorls. She'll, as seen from above, nearly flat, only very slightly concave in the last Avhorl ; bordered externally with a beaded or nodulose nmrgin, whilst from each nodule there proceeds a thin raised thread normal to the margin. Median surface of whorl relieved by a strong but narrow, nodulose raised band, which appears submarginal by the involution of the earlier whorls ; general surface finely spirally striate and crossed at right angles by the excessively fine growth- lines, producing a micro-cancellate ornament. Peripheral area stepped below the inner half of the whorl. As seen from below, whorls angulately convex, with a median, raised nodulose band, and several fine, spiral striae parallel to the margin ; these are crossed by fine lines of growth ; the median band on the inner whorls sub- marginal in relation to the successive turns of the shell. Mouth subcircular. slightly elongated in the direction of the long axis of shell ; the jieripheral border and the outer median liand standing' out in the oral aspect as two strong, salient l)eaded carinae. Diiiunxioiis. — Major axis, 0.2,5 mm. : minor axis. 5.5 mm. ; height, 1.75 mm. Observations. — This handsome species represents the first recorded occurrence of the genus as an Australian tertiarj^ fossil. Mr. Chas. Hedley has described and figured a recent species under the name of Omalaxis 7neridion;. 74. 2 Deshayes, Desor. Coo. Foss. Eiiv. Paris, vol. ii., 1824, pp. 222-7, pi. xxvi., fii,'s. 1.1-2i>. 190 ' Frederick C/hi/hiki u : Occurrence. — Tertiary: l)aleoiiil)ian series. From the l)lue clays of the deeper part of the Altona Bay Coal-shaft. Collected and pre- sented bv Mr. J. vS. Green. Fam. Cypraeidae. Genus CypPaea, Linnaeus. Cyyraea gnhrieli, sp. nov. (Plate XIIT.) Description. — Shell 'very large. Seen fro mi above, siib-oval ; anterior wide and lilunt, posterior acuminate. Seen from the side, back very gibbous, with a steep face on the apical end, and sloping more gradually to the posterior. Spire partly concealed, situated in a depression. Base flatttened, oval ; inner lip rounded (somewhat cinished in specimen), smooth within, flattened towards the ant-erior canal, and termimiting in a projecting flange ; outer lip rather nari'ow, fairly sniooth, but showing about 6 transverse undulations in the median and posterior area., representing the bases of unde- veloped or obtuse teeth. Surface covered with a thin lirown enamel which is conspicuously contused all over the shell, appearing as a polygonal system of depressions, fairly regular in. size and averaging about 5 mm. across. The underlying shell also bears contused mark- ings, but not SO' prominently. Dimensions. — ^Length, 136.5 mm. ; width, 101.5 mm. ; height (base to vertex), 75 mm. ; greatest diameter of depressed apical area, 23 mm. ; width of middle of mouth, 9.25 mm. ; width near posterior end, 11.25 mm. Observations. — This large and handsome cowry is nearest to Cyprnea contusa, McCoy,i both in general form and in the contused ornament. It is, however, of much larger dimensions, being more than four times as long, and differs in liaving a broad, flattened anterior with sunken spire, and a flatter Ivase or oral surface. Amongst the giant cowries it is shaped more like C. dorsafa, Tate, 2 than C. (jigcts, McCoy, ^ l)cing shorter and more tumid than the latter. It is very distinct, however, even from C. dorsata in the steepness of the apical face, in which the spire is deeply immersed. Occurrence. — Janjukian series ; Bird Bock Cliffs, Torquay, Viet. Collected and presented by Mr. C. J. Gabriel, after whom the species is named.' 1. Profl. Pal. Vict., een mention of little work in connection with legumes other than those cultivated, and nore which rould be regarded as afford- ing a complete and final answer to this question. Nobbe and Hiltneri had at different times been able to inoculate the bean plant with bacteria present in the nculules from peas, and Dr. Moore^ had also successfullv cariied out cross inoculation on some culti- vated legumes. Its Bearing on Eroiion/ie Agricrih i(re. — Hfiwever, since nothing of a definite nature had been done with tin- native legumes of any country, it seemed worth while carrying out experiments with the bettei- known and more widely spread legumes of this State, and to settle, if jiossible. tlie question whethei- the bacteria from various wild and cultivated plants were all alike as regards theii' power of cross infection, or wlicthci- biological races of the root nodule l)acteria existed, each eapable of infecting either one plant only or a few plants of similar physiological cliaracter. In paiti- cular, the ([uestion whether the same cominou and widely spread bacteria, which live upon and enrich such native plants, as for instance Acfic/n, were capal)le of living in symbiosis with the conunoiier cultivati-d meml»ers of tliis order, hafl an inqiortant bearing on agriculture, particularly in I'egard to the pi-actice to be adopted in opening new ground to cultivation. h'or inst.ince. if all the root nodule l)actei'ia are capal)le of iitl>l. Bnkt. u. Par. i, Abt. « (Utoio, No. 14, pp. 44i)-4.')7, pi. 1. 2 Dr. O. T. iloorc. hiocnlation of Soil for l.t-KuniiiiOBae. fnitcd Stittes Mnr. I'l. Ind.. 17, 19f»r.. _ Crosfi Inocublatiun of the Root Tubercle Bacteria. 196 Method of Attuvkii(y the I'nihltin. — Eight ul' the luure important iiieuibt'r.s of the Leguminosat.' weit' taken, viz. : — 1. Bioad Beau Vicia Fabu. 'J. Kidney Bean J*haseolus vulgaris. .'!. Field Pea Pisuni sativuni. 4. Soy Bean Glycine hispida. .J. Lucerne Medica<:u sativa. 8. JMack .Medi.k FJed rinvrr Ilaiiv \"et(li iM.r rli(t.sen cros.s inoculatidii l»ur]Kl^^es. .Medic ago hipulina. Trit'uli 11111 |>ratense. \ icia villotlants l)eing used for each exj>eri- nient. .\s till' risk of coiitaminatiiui and outside infection must be com- pletely overcome, everything l)efore use was thoroughly sterilised. Mf-fhod of Sterilisation and l'neo>ifion.<. — The pots l)ef. Canada, I'Mt'. 196 A. J. Ewari ami Norinan Thoinnon : assiiiiiptioii tliat tliey luiglit have l)oeii tavised by bacteria reiiiai)iiiig nil tlie seed afte)" iiiefteetive sterilisation. BoiU-d water was usetl iu all eases, and all jars and beakers were plaitil in boilin^ water before use to ensure peifeet sterilisation and pure iiioruhition foi each series. Ma/iner of Infeclinn am/ Soir/n;/. — T<_i infect the seeds, an in- fusion in water was made of the contents of the nodules from eacli of the chosen legumes. The ii(»dules were washed thoroughly in sterilised water many times, no disinfecting agent being used for fear of killing the bacteria; they were then cruslied u}> in water, and the seeds before sowing were soa]\cd in tliis l)actcrial iiifusioii. each series, of course, in its own inoculating mateiial. After FIG. I.— LIFK-SIZE DKAWINGS »>F NODUr.KS 1. Platylobiiiin iioduk- 2. Aotiis ;i Hossiaea k .Acacia o. Swainsona '2-4 lain, x 1-2 iiiiu. Colour dark l>rowu, white towards one end. Oval sliapc. H-20 mm. x 2-5 mm. Lii^ht brown colour. V^ery elouy;atcd, though rei^ular shape. .")-l2 mm. X 2-t unu. Creamy brown, and re<4iilar oval shape. (MO mm. X 4-5 mm. Liglit brown uuo end, white the other. Irregular rounded and oval. 3-20 mm. x 2-3 nun. Brown and white, and very irregular shape, somewhat clongafe. Many grouped in bunches. C';-u6>' Inoculation of the Hoot Tubercle Bacteria. 197 sowing'. iNieli infusion was diluted with tlic IxiiK-d watci-. and purtiun of it used to w atei- the pots, the leniainder heing further diluted and used for tliree subse(iuent waterings spread over four or five days, so tliat in this way. the bacteria were iirHULrht into intimate contact with the seeds and young roots. PoKS/hle )'('siiffs of Cross-J /loculftf ion . — Tlie imdules from the various phmts sliowed irreat dilTereiice^ in size, form and cohiur, each Rind being easy of recognition. If nodule growth on tlie jdants followed inoculation, tlien it seemed feasilile that the size and sliape of the niotlier nodule should be repro(luced in the nodules formed n\n>u the roots of the inoculated host plant. By microscopic examination it was noticed that there were distinct differences in sliape ami size between the l)acteria from the dift'erent native legumes, and that the root ncxlule bacteria from native plants, were much larger than those examined from the nodtdes of (lover and hu-erne. • • e 0 / © C=£^ /ft 1 0 *;i 3 OO a 1 8 o 0 «0 2. FIG. II.— DRAWINGS OF BACTERIA FROM NuDULES OF THREE DIFFERENT NATIVE bELiUMINOSAE ( x 6Q(»). 1. Phxiylohlvm nodule bacteria, Conyreyate in chains, and are buiall roinul Ijacteria. 2. Acacia nodule bacteria. Curved rods ot varying length, rounded ends. Longer than FlutijlobiHiv :3. liwaihsona nodule bacteria. Bacteria found singly; short and stumpy, • but ot regular size. 198 A. J. J'Jtvart o.nd Noniian Tkomsoii : Jf tlje t-ross-iiHKulation weie successful, it Avuuld be interesting bo see wlietlier the nudules I'loduced upon the infected plant were not only tlie same externallv, i.e.. in .size and colour, as those on the infecting plant, but also internally; whether the histology and anatomy weie the same, the cells, the cork tissue, the vascular bundles, the bacteria containing cells, etc., were identical in each. If this were so, one would expect the bacteria in the iiodules pr(»- duced uj^on the I'oots of clover inoculated witli acacia nodule bacteria, the clover bacteria l)eing smaller than the latter, to be of a similar size and sliape to the acacia l)acteria and ui similar pliysi()]ogical ami liiological chai'actcrs. Actual i-fsulf" ill fohiilar forni. — The experiniejils weir tried twice, extending over a ]>eriod of seven months, Novemljer. 11)11. in June. i!)12. After sowing, the jilants were allowed varying periods ()f growth before examinal ion . from seven weeks in the case of most to four iiioiiths ill that of clovcr and lucerne 4)1 the Hist experiment. I'hotographs were taken of the live most forward plants in two sei'ies. that uninoculated and the one inocidated with root nodide liacteria from I'laf i/lohi iini six weeks after sowing. Although the results show that no nodules were present on the roots of the inoculated sei'ies of plants, yet they showed a more decidi'd growth, and were larger and vstronger. Whethei' this was due to the root nodule bacteria c(mtinuing to live in tin' soil and hx nitrogen outside the 2:)lants they were unable to inferi. is an open ipiestion i9<>:o Plate XIV.) The i-esiibs max l;e sliown ill the following table: — l.'oo'l- rTIiiEK'CFiES UKVELOPED AFTEK 1N0CUL.\T1()N WITH BACTERIA TAKKN FROM NATIVE LEGUMES, AS UNDEK. ( Uiltivatwl .\c a till. l'lat,\ lobiuni. .Swaitisotia. .\otus. Hossiaca. riiinooHl ate«i. lm a particular root nodide. were biologically adapted to the special nutritive conditions peculiar to the given plant, and thus might be unable to directly adapt themselves to a new host pknt. If, however, the bacteria were ti-ansfened co sterilised soil and allowed to live there, or grown on artificial non- living media as a saprophyte feu- some months, the special nutii- tive adaptation in the course of repeated generations miglit gradu- ally merge into a moi'e generalised condition, so that it could inoculate a plant further and further away either systematically or in physiological condition, the longer it remained in the soil. Ultimately, the soil might contain bacteria capable of infectin;/ any or all leguminous plants, from whatever ho.st tlu.'y might havf been derived. In the above case, the l)acteiial contents were used to inoculate the cultivated legumes, and so their specialised nature prevented inoculation with plants presenting dissimilar l)io]ogical and nutritive conditions. According to Buhlert^. all nodule organisms are forms of Bacillus radicicola, but the bacteria best adapted lijpi inoculating are those from the same host plant, and e()nse(iuently. unless the nodule bacteria have become generalised in tlie soil, tiiey are too specialised to infect other plants when used directly from the nodule. That this is the correct explanation is indicated by the fact that in some cases difiictdty ua-; experienced in inoculating red clovei' and lucerne seedlings with bacteiia taken directlv fi-om root tubercles of the same plants, namely, red clover and lucerne respectively. Apparently loot tubercle Ijacteria taken dii'ectly from the living tu1)ei-cle are a)it to die out in sterilised soil or in water cultures, and will usually do so befoi-e they have become sufficiently generalised to be cai)al)l(' of infecting a foi-eign ho.st plant. On the nthei- hand, when the l)acteria fi'om one ]»lant Mi-e ^rown on nutrient gelatine media, they appear to i-apidly develo]) more 1 H. P.uhleit. (entralbl. nakt,. .Jt^ia .\ht. 2, l», 1-2I.2 (pp. 148-ln;?. •2-26--24ii. 27:^2S.^, S92-895). 200 Ewarf and Thomson : Cros.^ Inocalation generalised infective powers. Thus, it was fuund possible to readily infect peas and to a less extent broad beans, grown both in water lultnres and in sterilised soil, with l)acteria from acacia tu))t'i'cles, is()laU'(l and cultivated on nutrient gelatine. Peas and beiins grown in water cultures inoculated with bacteria taken directly from acacia tubercles, failed to develop any root-tul^ercles except in one lase where a pea developed a few tubercles after four months' growrh, but after so great a length of tiino this miulit have been due to a secondary infection. When a loot-tubercle is dying, any still living nodule bacteria it contains will grow for a time as saprophytes, just as on an artificial medium, and hence may develop generalised nutritive properties, so that they are able to survive when set free in the soil by the decay of the tubercle, and ultimately to become capable of infecting other plants. In this way it is possible to understand liow such plants as Alsike clover and peas may develop tubercles in abundance when grown in uninoculated soils, in which neither plant had grown for ten or more years^. How long the process of generalisa tion takes, what conditions favour or retard it, and how far it extends, are problems for future determination. 1 A. .1. Ew.irt. .loiini. of Aarrif. Vift., vol. viii., pp. 0><-105, lOlo. Proc. Roy. Sot. Victoria. 25 (N.S.) Part II . 1912.] Ar'I'. XVI 1 1. — Farali/sifi in Horses and in Coivs due to the Ingestion of Fodder. Rv J. A. (ULPvUTH, D.V.Sc. M.R.C.V.S., F.R.S.E. [Bead 12th September. 1912]. Fur many years a funa of progressive paralysis in cattle, evinced primarily by an inability to ingest food, associated with absence of rumination, more or less rapid emaciation and early death, has been recorded as prevalent in Victoria, South Australia, and even in certain districts of Tasmania. Many articles have appeared in the lay and agricultural press dealing chiefly with the symptoms, the seasonable occurrence, the nature of tlie food supply, and, to some extent, the post-mortem appearances, but little systematic enquiry into the etiology seems to have been attempted. So far as I am aware, the first accurate and scientific description of the disease was published in the " Australasian Farm and Home," in April, 1896, by my colleague. Dr. W. T. Kendall, and his account of the symptoms is so careful and concise, that no one having perused it could fail to recognise a typical case. Under the head of " post-mortem appearances," it is worthy of note that Dr. Kendall states regarding those cases he examined : — " The sup- posed impaction of the omasum or third stomach to which the mor- tality has been entirely attributed, did not exist." Dr. S. S. Cameron, in Victoria, who gives in various articles a definite account of the symptoms, concludes that the condition is a paralysis of the 9th and 10th cranial nerve due either to some form of mould (fungus) poisoning or solely to the non-succulent and innutritions nature of the food supply, either of which he con- siders a useful hypothesis for future work. At a later date I under- stand he suggested the term " Impaction Paralysis." on account of the impaction of the rumen, which, in his experience, was almost invariably present. He appears to consider that the diseases known popularly as " Stomach Staq-gers." " Winton Disease." " Cripples," etc., are one and the same. In South Australia Mr. J. Desmond has given much attention to the condition. (See report to tlic Hon. Minister for Agriculture, and Veterinary Journal. Vol. 60. No. 417. page 161.) In his fir^t ■3 202 /. A. Gilrvth: reports he also considered the disease due to impaction of the omasum and termed it " Dry Bible," but in his last report he claimed to have found the specific bacterium. A description of this organism, and details of his experiments, however, have never been published, hence they cannot be dealt with here. Dr. Wilmot, in Tasmania, recently in a special report claimed that the disease is really the same as " Louping 111 " of sheep in Great Britain, but his evidence is, to say the least, very unsatis- factory. Prior to joining the Melbourne University in 1909, I had naturally been aware of the existence of this disease, and hoped to have an early opportunity of observing definite cases, if not of making a thorough investigation of the whole condition. It was only, howevei', in the late summer montlis of 1911 tViat I was able to examine for myself definite cases in cattle, oases that everyone was agreed were typical, and this tlirough the courtesy of Mr. Humm. G.M.V.C, Warrnambool. During April, 1909. three cows were sent to ine by the Depart- ment of Agriculture's officials, but none were typical. Indeed, some of those who had had considerable experience of this form of para- lysis in cows considered they were not cases at all. One certainly suffered from acute broncho-pneumonia, and died within 36 hours after admission to the hospital, but the other two I now consider were affected with a mild form of the disease. That the symptoms are frequently very indefinite is pruvotl by the fact that many cases have been reported to me, by laymen chiefly, which proved on examination to be of quite a different nature to the disease imder review. For example, one outbreak of pleuro-pneumonia was originally reported both to the Department of Agriculture and to myself, as a severe outbreak of this disease. The paralysis of the horse, althougli due to the same cause as that of the cow, is of an entirely different character so far as the muscles affected are concerned. The disease has been little o1)served in Victoria, judging b\ available literature, but in Soiitli Australia it appears to be fairly common, and often assumes the character of a severe endemic. It has been carefully studied by Mr. J. V. McEachran, M.R.C.V.S.. who, both in correspondence and in consultation, has afforded me valuable information regarding the disease. Until recently, and indeed until the experiments recorded latei- were being condTicted, the e(>iinecti«)n betweeji the disease in the cow and that in the horse was not suspected. This is not surprising when the syni])ti)ms are compared, esjiecially in view of the fact FaralysLs in Horses and Coivs. 203 that Avliile oecasioiiall}- on farms in South Australia the disease may occur in both cattle and horses, it more frequently happens that the one or" the other class of animal is alone affected. Why this is so will, of course, be a matter for further investigation. Though much has been written regarding the symptoms observed, especially in the cow, and to some extent in the horse, in this artitlf 1 propose to confine myself to I'ecording what I have per- B(.inallv ol)served and ascertained from owners of the affected stock. Symptoms in Cow. Usually the first symptom of illness observed by the dairyman is either a severe diminution, or almost complete cessation, of the milk supply in a cow which at the previous milking has yielded her normal quantity. It is more than probable, however, that a careful observer might detect some symptom prior to this, especially if close attention were paid to the animal when feeding or at rest; but in any case, such abnormality is liable to be overlooked until the milk yield is affected. Even then other symptoms are by no means very definite. Kumination is often suspended, but this is not unusual in many cattle diseases. Often it is intermittent. The most definite and probably most characteristic symptom at this stage is a peculiar, slow and very persistent movement of the jaw, not the ordinary movement which occurs during either chewing food or cud, but a slow up and down movement, with little, and often no, lateral niovement of the lower jaw. This movement seems to be almost involuntary; it will cease Avhen the animal's attention is distracted, and is resumed again latei- on. The head is held somewhat straighter than normal, and this becomes more pi-onounced during the progress of the disease. The expression is peculiar, it may almost be termed wistful and enquiring. Inattentiveness to smroundings is obsei'ved, and the animal is generally seen apart from the herd. No attempt to eat or drink is made, but whether at this stage because the animal knows she can only chew and swallow, if at all, with difficulty, or through experience of ineffectual attempts, or thi'ough intuition, I have not been able to determine. There is, however, from the first. I think, but little appetite, tliough it may not have entirely disappeared. In the very mild cases, or cases which progress slowly, a little water may be swallowed, but with great difficulty. In one instance I observed a cow hold her mouth in a bucketful of water for ten minutes, and only succeed in drink- ing half the contents. On another occasion I observed a cow whicii 3.^ 204 J. A.^GUritth: we had driven into a wateiliole, hold her mouth in the water for ahriost tit'teen minutes. In both these cases some time elapsed bei'ore any liquid was swallowed, as observed by carefully watching the movements of the oesophagus, while but a small quantity was swal- lowed at a time, and at infrequent intervals. l^'rom the beginning, prehension of food, even cut green fodder, is ditncult, and soon becomes impossible, even though the animal may be obviously anxious to partake of the material. When it is possible to seize the food, mastication cannot be performed. An attempt" is made to chew a blade of cabbage, a stalk of sow thistle, some green clover, or such material introduced into the mouth, but the process resembles more the action of a human being sucking a sweet than the normal mastication of a cow. The buccal muscles do not seem to come properly into action, and there appears to hj inability to properly direct the tongue. During this attempt to masticate there is considerable salivation. Often such partially o-- very slightly cliewed material which has been introduced into the mouth will be dropped, and if it is not, it rarely gets beyond the base of the tongue just in front of the velum. Indeed, in nearly all cases it has been observed by most writers that a quantity of partially chewed food is almost invariably found situated there on post-mortem examination. In two cattle dead of the disease, or what was probably the same disease in Tasmania, which I had an opportunity of examining post-mortem (although unfortunately dead nearly 48 hours), this plugging of the base of the tongue by food was very definite. But the difficulty in swallowing does not cease here; it is evident that even the oesophagus is in a semi-paralysed condition, for in one case where with considerable patience and persistence the patient had slowly and with some distress succeeded in swallowing a little fresh grass, I found on post-mortem examination a few hours later, the ingesta lying along the lumen of the intra-thoracic por- tion of the oesophagus like a loosely twisted green rope. As the disease progresses, the champing of the jaws l)ecomes more noticeable, the tongue is frequently protruded as if to make an attempt to lick the dry muzzle, but without success, and may remain so protruded for several seconds or even longer. Salivation l)t'(()ines more profuse, there being a constant dribbling from the iiiouth of saliva, which is often ropy in consistence. There is fre- qiiently an intermittent mucoid discharge from the nostrils, which is probaV)ly saliva which has been only [lartially swallowed and returned per nasal chamber. The expression becomes more wistful and the head more straightly lield A slight swaying of the body, ParaLjfila m /iuor.s and C'uitvs. ~05 accuiuptuiied by Lwiuhiug ut mubclcs, appears, bui nut luvaiiauly, una seems to mdieate that the anunal is aliaia ol falling, anu even ol lying (Juwn, ui case she cannot rise again. Cases may ue louna recum.jent, uut generally m the early stages; when s^niptoais are vei_) ueiiiute tiic rule is lor the patient to stand i^uieLly, even a placed in a loose oox. in a hoi the head may Oe otteu iounu pressed into tlie corner, as it a partial support were given tliereuy. If forcibly moved, the gait is more or less staggering, and the desire is to move only in a straight line. Ixespirations are normal, except when disturbed. The temperature remains normal, though occa- sionally reaching 103 deg. 1'., particularly when exposed to the sun. ihe faeces are scanty but not abnormal. Micturition is generally infrequent, but may be the reverse, and may be accompanied by evidences of pain. At times injection of the visible mucosae may be present. Occasionally some evidence of internal colicy pains is observed, but tliis is not present in all cases. More or less rapidly, the animal becomes weaker and weaker, chiefly from lack of food, and, especially in animals unhoused, from lack of water. Sooner or later the patient lies or falls down, and can be got co rise with difficulty, or not at all. Gradually a condition of semi- coma ensues, with complete coma and death resulting. Usually ths course of the disease lasts from two to four days, but may linger for a week after symptoms are observed. Occasionally, it is said, cases recover, but I believe no immunity is attained against a recurrent attack the next year. I feel certain that were sick animals housed and 80 kept away from the sun's rays, and especially were they coaxed to drink from the beginning, they would survive much longer. Consequently chances of recovery would be much greater. The most characteristic symptoms I consider to be the champing of lower jaw, the inability to chew and swallow, the salivation, the expression, the attitude of head; in other words, partial or complete paralysis of the powers of prehension, mastication, and deglutition. The disease is rarely, if ever, seen in animals beloAv two years of age. and apparently never in calves. In Victoria it does not often attack steeis. or at all events is rarely observed in that class of stock, although bullocks are not infrequently attacked in Tasmania. The season of the year Avhen the disease prevails is the dry BUinnier months, especially January and February, though cases may occur earlier or later. For this reason, the dry, often innutri- tions, nature of the food supply is considered by some as being the primary cause of the impaction and paralysis of the rumen. 206 J. A. Git ruth: I'ost-morfe/n Appearances. There are no pathological macroscopic changes which are con- stant or in any way characteristic. ihe so-called impaction of the omasum, with dry ingesta, which led to the ridiculous term " Dry Bible," observed by some and considered the causa causans oi' the disease, is not constant, and is not greater than may be seen often in long travelled l)ullocks killed at abattoirs, and is not surprising considering the want of food and water, which may have been for a longer period than generally estimated. The brain and spinal cord are quite normal. The meninges may show slight injections, and while in some cases there has been an abnormal quantity of clear meningeal fluid present, though not sufhcient to cause the symptoms noted, in others there was no such excess. The buccal cavity and pharynx are generally quite normal, and in only one instance liave I observed congestion of the phai'yngeal mucosa. Contrary to some observers, 1 have never found any food in the pharynx proper, but almost invariably there is to be found a pledget of partially-chewed material situated between the base of the tongue and the soft palate. In addition to this, one may find partially chewed or even unchewed food within the oesophagus, especially the intrathoracic portion. The rumen generally contains matted masses of food, though in one case which had been frequently placed by me in a pond, and had with difficulty by very persistent effort drunk a quantity of water, it was found, when the animal was slaughtered soon afterwards, that this water was almost entirely within the rumen. The aljomasum is invariably empty; the small intestines are in a catarrhal condition, and contain more or less milky mucoid material, particularly the duodenum. The large intestines contain normal contents, though small in (juantity. All other organs are normal, including the bladder, which is generally empty. Bacferiolocjirnl I nvesfif)atio7i. Microscopical examinations of blood and other body fluids have always given negative results. Injection subcutaneous, intraperi- toneal, and intravenous of other cows with blood, spinal fluid, and even with emulsion of brain and spinal cord (brought to the labora- try preserved in glycerine and normal saline) have invariably given negative results. A cow drenched with a quantity of the catarrhal material found in the small intestines remained normal. The conflusions to be drawn from these experiments are that the Paralysis ia H<)rse><. and Coivs. 207 disease is not due to any living organism visible or ultra-visible. Naturally, however, such were the first experiments to be under- taken, especially in view of the discovery of an ultra-visible virus being the cause of human polio-myelitis by Levaditi and Klexner. Symptoms in Horse. Instead of localised paralysis as in the enw, the symptoms in the horse are those of a general paralysis. Premonitory symptoms consist, at most, of inappetance. Frequently the animal is not observed ill till seen lying on the side, unaljle to get up even with assistance, and there may be evidence of intermittent colicy pain. In some cases the first symptoms are those of hyper-acute and sudden attack of colic, from which apparent recovery may occur, to be succeeded, however, by complete motor paralysis of the lind)s. Often a peculiar paddling of one or more limbs is observed while the animal lies recumbent. In some cases the patient lies apparently quite quiet for prolonged periods, in others colicy griping pains of the intestines appear to ))e frequent, judging by the attitude, par- ticularly the turning of the head to the flank. Sensation in the early stage is not lost, as can be demonstiated by pricking the skin, when the muscles of the flank or shoulder will twitch, but the limb cannot be moved voluntarily. The paddling movement appears to be entirely involuntary. In the early stage the animal retains consciousness, though in the acute cases this soon gives way to semi-eonia. Tlio pupils are dilated, and the expression is startled-looking. The temperature remains normal, or it may be slightly above normal. The pulse is weak and rapid. The visible mucosae are sliglitly injected. Per- spiration is often profuse, and may be patchy. Depending upon the aeuteness of the case, semi-coma, succeeded by coma, occurs, the paddling movements cease, and death may take place within 12 to 24 hours from the onset of the symptoms, or in subacute and chronic cases, the animal may linger for several days. Death is usuallv preceded by a violent paroxysm. These are the svmptoms as obsei'ved here in a niutdier of lioth accidentally and deliberately produced cases. Po.eora)}res. Skin and subcutaneous bruises aic common, but are onlv bed sores. In two cases patches of semi-gelatinous, straw-coloured oedema were present in the peri-pharyngeal connective tissue, but 208 J. A. Giiruth: were al)seiit in otliers. The brain and spinal cord shovf no lesions beyond at times a slight injection of the ventricles. The meninges are generally normal, but in one naturally acquired case, and in one deliberately conferred case, there was an abnormal quantity of clear cerebro-spinal fluid present, especially around the medulla. The lungs in very acute cases show passive congestion ; the pericardium contains a varying, though small, quantity of iloai- serosity; the heart shows sub-epi- and sub-endo-cardial petechiae; the blood coagulates readily with a firm clot and clear serum. The stomach is generally normal, in only one case a few ecchymoses being seen near the pylorus. The small intestines are invariably in a muco-catarrhal condition with much serous effusion, coagulable on exposure, and mixed with flocculi of shed epithelium. This is found especially in the anterior part of the canal. In one case small necrotic patches of the duodenal mucosa were observed. The large intestines are generally tympanitic, but contain normal ingesta. One case showed a large area of congestion and many petechiae of the colon. The liver and kidneys are slightly con- gested, and show cloudy swelling. Otherwise the organs are normal. Bacterioloyicdl Examination. Microscopical examination of the blood and other fluids, such as cerebro-spinal fluid and pericardial serosity, as well as tissues, gave always negative results. Blood secured from the heart and large vessels in steiile pipettes and tubes immediately after death coagulated readily, and remained sterile even at blood heat. Intra- venous inoculation with such material gave negative results, so that a living virus as the exciting cause was excluded, so far as such experiments could determine. Fortunately the fodder wliich had been fed to horses that had succumbed in an outbreak detailed below had been secured by me. and tests with this gave interestinj^ and surprising results. Observations on outbreak of Horse Paralysis in a Melbourne stable. In the beginnine of November. 1911, I was advised bv Mi-. W. A Kendall, n.AT.V.O., of a serious outbreak of disease affectiiMj' lliree horses belonging to a dealer in one of the suburl)s. The thi-ee liorses. of a very good draught type, became affected almost simultajieonslv. and succuml)ed within 24 hours, in spite of treatment. Mi-. Ken- ruralijxU I'll //(n'.sr.s cnu/ Cuirs. 209 dall's jurouiit ni' tin- s\ iii|itiiiiis, ami tlic (pl)srrvali<>ii> 1 \s ds able to make throu^li liis courtesy, tallied generally with the symptoTiis reeorded above, as did the posf-niorftni exariiinations, at only one of ■which I was able to l)e present and personally secure speci- mens. The cases did not seem to be those of ordinary poison, and chemical examination of the stomach contents and of the fodder gave negative results. Fortunately, however. 1 luul a ipiantity of the fodder, consi.sting of ordinary mixed chaff, with l^ran and oats, all apparently of good (juality, sent to the laboratory for experi- mental purposes. The material collected was kept separate, and labelled according to the place of collection. These samples were : — A. From the mangers of the horses that had died. B. From the nosebags of those horses. C. From the loft near the chute. I). From the bidk fodder in the loft. (N.B. — C and D were similai-. with the exception that D was mixed later by a few days than C.) Xo unmixed feeusly. and left for the night, having been well bedded down. Next morning the animal was found to have knocked liimself about a good deal during the night. 'Phidugliout the day he lay ijuiet for the most part, but off and on theie weie periods of strug- gling. Temperature did nf)t rise, but respirations became more lalioured. though hy})ersensitiveness was still juarked, until j-'emi-con)a ensued shortly before death. The animal died at 5 p.m., 20 hours after having been first noticed lying down, having struggled a good deal dui'ing the last hoiir. I'm^l-nuiritin A piicdrdncfu. — Similar to cases at stable from which fodder was obtained, but less injection of the vessels, little catarrh of small infest im;. no oedema around pharnyx. and but slight excess of stibdural fluid. The feed left in the maj)ger of this horse (about 0 lbs.) was divided between two s]iee|). They ate it readily enough, anony K. 12. which leceived .'? lbs., and to a cow 4 years old, in good condition, whiili rect'ived J) lbs. For the next week ordinary fodder, as given tony was found lying on Ids side, tlie lindjs straight out, withip. Consciousness Avas definite, the liead l)eing partially raised from tin)e to time. No evidence iiity to move tlu' limbs oxcept In- the iiiviiliiiitarv paddliiif,' i-ot'cricd to. At tht' end of tlio fourth day no impiovc^ment and no ai,'»riiivation in f^^eneral symptoms having taken place, except increasing weakness, V)ecaiisc of the fjodsores and tlie absence of feeding, the pony was killed. l'i)sl-nn)rff'ii) examination was mmh the sanic in results as in pi'evious cases, with the exception of some areas of l)roncho- pneunionia. The ex/periiiiciiidl coir gradually became affected with tongue, buccal, and pharyngeal paralysis. This cow made an admirable sub- ject for experiment. For six months she had l)een kept (in conse- (pience of another experiment) in a loose box along with a yearling calf, and in the next box another cow had been kept for the same period also with a yearling calf. During that period the four animals liad all been fed on the same kind of fodder, i.e., dry chaff, hay, etc., with no green feed, or exercise. Although, as will be seen, the cow fed with the suspected chaff became affected with the paralysis, the other cow and calf remained normal, and continued to do so while fed on ordinary chaff, till killed two months latei'. Her own com- panion had been destroyed prior to commencing the feeding experi- ment. No symptoms of any abnormality whatever were detected till tlie thirteenth day after receiving the first feed, or the sixth day of continuotis feeding on suspected fodder. Then the cow was noticed to 1)C less keen for food, and next day .seeiiied to chew each mouthful for a mucii longer ))eriod than usual, without making any attempt meanwhile to swallow. Although the day was wai-m, little or no water was drunk. It is safe to .say that had a careful watch not been kept ft)r some such evidence of disturbance, it would have been overlooked I)y the attendant. On the third day of sitkness th^^ condition was much tlie same, biit a thin trickle of saliva ran from the mouth, and some mucoid looking discharge was present in the nostrils. The fourth day brought improvement, and the cow seemed practically noi-mal, but on the fifth day the aimless chewing an! slight salivation had returned, while the expression Avas somewhat strained. On the sixth day, the symptoms were for the first time ycry suggestive of the cattle paralysis. Feed was refused ; the head was held straighter than normal, the eycs appeared staring, champing of the jaws wilh dril>bling of saliva was constant, occa- sionally the tongui- i>rotruded in an ineffective way, but seldom was an attempt made to lick the muzzle. On the seventh and eighth days the symptoms Avere aggravated. Drinking Avas done sloAvly and with much difficultT. On the ninth dav the condition Avas nnu^h I'll rdl I/sis ill //o/'.sx',N- (iu(l Cou'^. l.'Ui tlie same, the animal continuously standing, staring unseoingly iti front of her, the salivation and niovemtMit of the jaw in the characteristic way being almost incessant. A blade of cabbage wan picked up and sucked laboriously, ])eing finally rejected in an un- chowed condition. It was ol)viously impossible for her to get the food between the teeth or backward into the fauces." After this she refused cabbage, l)ut attempted a little grass with the same result, and the next titiic grass was offered, she refused that. Evidently therefore, the appetite was still present, V)ut she remembered her inability to chew or swallow certain materials. Rumination had ceased to be observed for several days. On this ninth day, also, the rumen was sHghly tympanitic, and occasionally eructations of gas and fiuid occurred, the latter pa.ssing down the nostrils. l''or the next three days there was little change except that the animal became gradually weaker and poorer in condition ; as always, a little faeces and urine were passed, but no food or water was taken. The temi)erature ranged between 100 and 102 deg. During this time several veterinarians and others who have had much experience of the cattle paralysis as it naturally occurs, saw tlio case, and unanimously confirmed my diagnosis that it was a typical, though not acute, case of that disease. During the night of the twelfth day after the first symptoms were manifested, she gave birth to a fully-developed, healthy calf, but was herself found prostrate and unable to rise in the morning. As she had eaten practically nothing for five days, and very little for a week before that, this Aveakness was perhaps not surprising. Nothing apparently was to ])e gained by attempting treatment, s> she was killed. Po!'operti/ referred to in text. The following is the detailed list of the plants collected : — Gramineae (Grasses). Holcus lanatus, L. " Yorkshire Fog Grass." Alien. Hordeum murinuni, L. " Barley Grass." Alien. Deyeuxia Forsteri Kunth. "Tooth Bent Grass." Native. Poa caespitosa, G. Forst. " Tufted Meadow Grass." Native. Lolium perenne, L. " Perennial Rye Grass." Alien. Briza minor, L. " Lesser Quaking Grass." Alien. Aira caryophyllea, L. " Silvery Hair Grass." Alien. Agropyrum scabrum, Pal. " Common Wheat Grass." Native. Pentapogon Billardieri, R. Br. " Five-awned Spear Grass. Native. Anthistiria ciliata, L. " Kangaroo Grass." Native. Ctperaceae, Juncacrae (Sedges and Rushes). Carex Gunniana, Boot. " Green Sedge." Native. Carex paniculata, L. " Panicle Sedge." Native. Heleocharis acuta, R. Br. " Common Spike Rush." Native. Juncus bufonius, L. "Toad Rush." Native. Juncus pallidus, R. Br. " Pale Rush." Native. Juncus planifolius, R. Br. "Broad-leaved Rush." Native. Juncus communis, E. Mey. " Common Rush." Native. Juncus prismatocarpus, R. Br. " Branching Rush." Native. & 218 J. A. Gllralh Leguminosae. Trifolium resupinatuni, L. " Annual Strawberry Clover." Alien. Trifolium fragit'eruin, L. " Perennial Strawberry Clover." Alien. Trifolium minus, Rel. " Slender Clover." Alien. Trifolium repens, L. " White or Dutch Clover." Alien. Acacia mollissima, Willd. " Late Black Wattle." Native. Acacia melanoxylon, R. Br. " Blackwood." Native. Psoralea parva, F.v.M. " Small Scurfy Pea." Native. CO-MPOSITAE. Carduus lanceolatus, Scop. "Spear Tliistle." Alien. Pro- claimed. Carduus pycnocephalus, Jacq. " Shore Tliistle." Alien. Pro- claimed. Carduus Mariauus, L. "Spotted Thistle." Alien. Proclaimed. Cryptostemma calendulacea, K. Br. " Cape Weed." Alien. Pro- claimed. Hypochaeris radicata, L. "Flat Weed." Alien. Anthemis nobilis, L. " Common chamomile." Alien. Senecio lautus, Soland. Native. Centipeda Cunninghami, F.v.M. "Sneeze Weed." Native. Gnaphalium japonicum, Thunb. " Japanese Cud-weed." Native. Cotula coronopifolia, L. "Water Buttons." Native. Helicln\vsum scorpioides, Lab. Native. Leptorrliynchus s(iuamatus, Lessing. Native. C'ahxephalus lacteus, Lessing. Native. Various Orders. Ranunculus muricatus, L. " Sharp-pointed Crowfoot." (Ranun- culaceac.) Alien. Plantago laiiceolata, L. "Ribwort Phuitain." (Plantagiu- aceae.) Alien. Rartsia latifolia, Sibth. k Sm. " Comiiiini Rartsia." (Scro- phiihuiaceae.) .Mien. Acacna sangiiisoil)ae. Valil. " His( lifc. " (Lylhraii areae.) Native. Pa rid I J til's in Jiorses (tiul ('uirs. 2l\) Kpilubiuin juiucuiii. I""(irsi. "Hairy \\ illnwheilt. " (^(Jiia- -giaceae.) Native. Myri(ii»liylliiiii elatiiioidcs, (iaud. "Coarse Water Milfoil. "' •( Halura<;aeeae. ) Native. I'lrytljiaea aiisi lalin. K. Br. " Au.stral Ceiilaury. " (( lent aiueae.) Native. N'illarsia reuil'orini.s. \{. Bv. ((leiitaineae. ) Native. .Mtei'iiaiitliria iiodiHora. V\. \h\ "Joywecd." (Amaiantaccae.) Native. Pdlygoiiuiii ino.stratuin. U. Ui'. "Trailing Knotweed. (l*(ily- irouaceae. ) Native. Kiuiiex Bi-o\vnii, Caiii]). "Swamp Dock.'" ( Pi.lygnnaceae. j Native. Prunella vulgaris, DC. " Selt'heal." (Labiatae.) Native. Mentha Pulegiuni. L. '' Pennyroyal." (Latiatae.) Alien. Asperula olij^antlia. F.V..M. "("onimon Woodiuff." (Rubi- :iiceae. ) Native. (Jratiola jjeruviana. T.. " Peruvian Booklime." (Scrp. 8, pi. i., fi-^s. 3, 4, 5. 222 Olive B. Davics: There is only one feature in the external description of this iiuinial -which I deem Avorthy of special comment. On examining the live animal, at first sight the smaller tentacle of each side ap- pears bifui-cated or double, but on closer examination, the lower of the two parts is seen to lie depressed inwai8 rows of approximately 118 strong, sickle-shaped teeth, eacli with u very sharp pointed end and a broadened base, the base being pio- duced in a little knob on the inner side of the sickle, and in the outer teeth being almost quadrate in shape. There is no rachidian. The uncini are larger than the laterals, and of the uncini them- selves, those towards the centre are not so large as those near the outside, but the two or three most external become smaller again; this last feature is more marked in P. at ra men f aria than in P. coin- jmcta. Where one would expect the rachidian, there is a clear space, and on either side of this are teeth much smaller than the laterals, and arranged irregularly; beyond these are the laterals, at first placed almost straight and later becoming more and more triangular till we come to the marginals. I measured the radulas of the two species. That of P. cortipacfa was 18 x 4 mm., and /'. atramentaria was 20 x 5 mm. The teeth are of the same general type in both species, the differences may be seen in Plate X\II., Figs. IX. A. and B. iMr. Suter has given the dental formula for P. atramentaria as 50.1.5U. I could not find any rachidian, but down the centre of the radula is the clear space I have mentioned above, and to eithei- side of this the irregularly arranged teeth, about one-third the size of the adjacent laterals. I also, in my specimen, counted at least 56 teeth on each side of tlie central space, but could not be sure of tlie exact number, as the radula was slightly torn at the mai-gin. The oesophagus leaves the pharynx from its dorsal surfaie, about one-third of its length from its anterior end. It runs as a straight, narrow tube for some distance, and then widens slightly to form the stomach. The canal then twists round, as tlu- intestine, under the stomach, and (.•ontinues running through the liver and finally twists back to run along the right edge of the pvdmonary chamber, and opens to the exterior at the pulmonary opening. Two Australian Land Snails. 225 The salivary glands -.wv two peai--sliaped ln)dies. lying one on either side of the alinKutary canal, just at the beginning of tlie stoniacli ; they unite in the midline dorsally; from each a duct runs forwards to open into the pharynx, just beside the oesophagus. The liver forms most of the visceral mass. One of its ducts is seen in Plate XVII.. Fig. VII. The Nervous System, The cerebrial ganglia arc two oval bodies, lying on the dorsal surface of the anterioi- jiart of the oesophagus; they are connected in the centre so as to form a band across the alimentary canal. From them two connectives run round each side of the oesophagus to the sub-oesophageal ganglia. Large nerves are given off to the tentacles, both superior and inferior, and one large nerve to the little glandular structure near the inferior tentacle. The sub-oesophageal ganglia consist of the pedal ganglia, from which nerves pass to the foot, and the visceropleural ganglia from which nerves pass to the viscera and the body-wall. The eyes do not differ from the ordinary pulmonate type. They are situated a little to the back of the top of the tentacle. In Plate XV., Fig. I., this is not clearly shown, owing to the position of the head, but it may be better seen in Fig. III. The inferior tentacle, as has been mentioned above, has a little glandular structure with an opening at its base. This structure seems different in the two species. In /'. compacfa it seems to form a little pit on the top of a papilla, while in P. atramentaria it has the foim of a little papilla with a groove on its under surface; but I have not examined the structure in the living P. atramentaria. In sections the glands are composed of the same forms of cells, and in each species there is a large amount of dark staining material, probably mucus, present. In P. compacta, however, the gland is not nearly so definite, and seems to lie more in the cephalic wall than in P. atramentaria. This may be clearly seen on comparing Figs. IV. and V. in Plate XV. Woodward has noted the very pro- minent " labial tentacles '' of Nanina caffra. He says they are extremely sensitive, and " probably tactile in function, 1)ut not used for prehesion as suggested for Glandina .'^ I can make no definite assertion as to the function of these struc- tuies; they are certainly glandular, and as they are present on carnivorous snails, I think they must have some use in either the capture or killing of tlicir prey. The pedal gland teseml)les those described by Mr. Collinge for /'. hochstetteri and /'. edn-ardi. It is greatly developed and folded 226 Olive B. Daclen : on itself, lying on the floor of the body cavity. In P. compncta it turns to tlie I'ight. and then to the left; in P. ntramentaria it only l)ends slightly to the. left l)efoix' dipjiing into the cavity ))ounded by the pedal muscles. Di-. Cox and .\\v. Hedley have placed the genus as follows: — .S.. — " S-2-'2:'>:>. ShllltleWMllJi .Mittheil. Xatmr. (Resell. Belli. . IS.')!'. |.. IHl. «Su(er — Jouni. of .Malac. IS!)!), vol. vii.. [il. iii. Suiei- l*ioe. .\lalae. S(k-.. Lmiddn. |S!i!), vi.l. iii. p. L'llO. |.l. .\v. Wuudward- I'lne. .Malae. S<.e.. L(.ii,i..n. IS!)."), vol. i.. \>\>. 270-277, }>1. xvii. KXl'J.A NATION ()K PLATKS. ti-nies - — A. Anus. A.G. Albumen gland. Aur. Auricle. B.C. Buccal cavity. ]j..Nr. Buccal mass or j^liarynx. j{.\ . Blood vessel. '. DauU's: Tn-o Av.i. Reproductive opening. K.vS. Ixeceptaculuin seniinis. S. Stomach. S.D. Salivary diut. S.Ct. Salivary o-lund. T,I. Inferior tentacle. T.S. Superior tentacle. V. Ventricle. V.D. Vas deferens. V.H. Visceral hump. I»LATK X\'. ]''i 1-*1^]- Art. XX. — Tlir. Correlation of Size of Head and Intelligence as Estimated from the Cubic Capacity of Brain of S55 Melhourne Crimiiials. Bv RICHARD J, A. BERRY, M.D., F.R.S.E. (Professor of Anatomy in thfi University of Melbourne) L. W. G. BUCHNER (Government Research Scholar in the Anatomy Department of the University of Melbourne). [Read lOtli October. 1912 . The present iiivestij,Mtioii deals with head measureiueiits of 35."> male adult criminals incarcerated in Pentridge and ^lelbourne Gaols, for various offences against the law. For permission tO' carry out the research we have to tender our thanks to Mr. Calla- way, the Acting Inspector of Penal Establishments, and to Messrs. Paterson and Edgar, the respective Governors of Melbourne and Pentridge Gaols. The objects of the research are threefold. Fir.st, to determine the amount of brain in cubic centimetres possessed by a class of the community which is presumably of an inferior position in the human scale of society. Second, by comparing the results obtained with those of admittedly superior education and social status to ascertain what, if any, correlation exists ];etween size of head and mentality. Third and last, to discover, if i)ossiliie. what light such an investigation throws on our present social and political methods of dealing with habitual offenders against tlie State. In view of the marked importance of the second of these objects: and the divergent opinion which has been expressed thereon, it will be advisable, at tlic outset, to ascertain what are the matured opinions of other coni]>ctent investigators on the hotly-debated question as to the correlation between size of head and intelligence. The problem has been attacked from both a biological and a biomotri- cal standpoint, and with somewhat conflicting results. Dr. R. J. Gladstone (1), writing in 1903, states there is a " distinct correlation between large size of head and a high degree of mental ability, this correlation being both absolute and relative to the general size and weight of the body."' 230 Bt'rrji tiv'l BUchnei' : 111 1907 the same obseivcr (2) a heads were measured, to IS I. "5. which occtiis once iji a Welshman. If the anatomical true mean be regarded as IvMiig 10(1, then the i-ange of variation extends from .Si). 2 to 1 17.0. In the case of the 25 members of the teaching staff of Cniversity <'ollege. London, till" trtu' mean of the cubic c-apacity, as given In- Lee and Pearson, is 1511, with a range of variation from l."552 to J(5."{-5, or in relative numliers, as })efore, from 89 to KiS. For the males attending the JJritish Association for th(^ Advance- ment of Science the true mean of the cubic capacity is 1495. As the minimum "and maxin)\im figures are not furnished by Lee and Pearson, we are unable to <]tn>te the range of variati6 Beri'ji , wc olitain the- folloAving :- — .Miiiiiiiiiiii. Tine ik-aii .\l.i\iumin. 1. .'?.-> Anatniiiists - - S<».2 - ]r>'A7 cc. - 117.«» •^. 25 University <-%>ll«'o-t' - SO - lollcc. - lo^ :{. 215 London INIodical Stiulents !lt!.2 - 1507 cc. - 103.H 1. Britisli Association males - — - 141)5 cv. - — 5. !■ Mellnaune Students - H5.7 - Uf.i) cc. - 1()H.2 (J. 855 Mell>ourne Criminals - so.'.i - 1 1:{S ce. - 123 If the amount of cubic ca])acity of brain of the foregoing gi-ou])s be worked out in ri'lative numbers from the lowest class, tiic- criminal, Avliose cubic capacity of brain sliall be regarded as llKt, Ave achicA'e the following results : — 1. 3oo criminals .-,... iQO. 2. 4 Mcllmurne Students ----- 102.1 S. British Association nialas ... - IQ.'i.O 4. 2ir) London Medical Stud<sults. and it necessarily follows that if these investigators em|»loyi'd another formula than that herein adopted, their results, in cubic lentimetres, cannot obviously be compared directly with ours. Matiegka (12) examined the brain weights of a considerable- number of individuals drawn from different classes of life, and concludes therefiom that it is clear that high intelligence i.s causally associated with an increase in the brain weight. ■ The undoubtedly many discrepancies he ex])lains on the different degree of muscular development of different individuals. His figures, arianged in grammes as given by himself, and in relative numbers worked out bv ourselves, are a.s follows : — ,. „ , ^. (.raiiinips. Ifi-I. No. 1. 14 Day Labourers of th« Navvy Class 1110.0 - loo 2. ;{4 Workmen - - - - 1 13;?..") - lOl.f) 3. 14 Minor Officials, Overseers and AVatclinien in whom a certain amount of intelligence was necessary - - - - 4. J 23 Tradespeople and Artisans 5. 28 Minor Officers, Teachers, Business People, Musicians, etc. - 6. Students, Officers, Doctors, etc. Costa Ferreira (13) measured the cubic capacity of 5.57 skulls from tw(» churchyards in Lisbon. They were the skulls of persons whose position in life was known exactly, and which thus permitted of their subdivision into social groups. The average cranial capacity was 1572.72. This capacity must not, howevei'. be compared directly with ours, as it was almost certainly obtained by a dif» ferent method, and as the Avork was done on the skull itself, the measurement is probably direct and not estimated. The order attained by Ferreira'.'-; groups may, howevei". be compared with our OAvn results, and i.s as follows : — 1. 95 unknown occupation 2. 12 House Proprietors 3. 1(J4 Daily Liihourers 4. 130 Workmen 5. 52 Public Servants im the Pension List - - . - fi. 11 Public Servants • 7. 49 Business Men - - - .s. 84.91 1(»2.9 1590.18 103.3 1598..-)8 103.8 1 ♦529.9 105 .9 238 lierrij and BilcJinef: Fioiii the t'(ti-e<^oing t-oinparisons, Ijoth direct and indirect, it is clear that as regaids ulasseis tlie giealer tlic intelligence demanded bv tlie profession tlie greater the amount of tlic cubic capacity of J)rain })08sssed ])V that t-lass; in other words, as regards classes in general, the evidence herein adduced distinctly poi7its to a corre- lation between intelligence and size of head. We have already stated that the '355 criininals of the present investigation have l)een divided by us into ten groups according to the nature of theii' crimes, ajid in view of the general conclusion contained in the last ])aragraph, we have thought it advisable to examine these ten classes, to see if that conclusion would be sup- ported or not, by the various criminal groups themselves. Of these ten groups the t)ue means, probable errors, and stan- •flard deviations of the cubic capacities of brains, with the minimum nnd maximum figures in each group, are as follow : — 'ioo Cr'imhmls divided into 1(> (Tronpn accordiwj to thf natnre of the. crime. No. Natui-e of rriiiie. 6. Cattle Stealino- 26. Inebriety 15. Assault and Woundiiii^- l-M. Larceny 26. House and Sliopbi'eaking - 56. Sexual Offences 11. Murder and Manslaugbtei -)2. Miscellaneous 14. Forgery - - - 12H7 - 14r)9±21.ir) - 1 17.31 ±14.95 - 170J 5. Embezzlement - - 1384 - 1475±31.43 - 1(»3.1»4±22.18 - 1645 If now we express the relative amounts of brain cajiacity possessed by these several classes of criminals, and ilmsr other learned classt-s selected by us for comparison in terms of the lowest class of all, namely, the cattle stealers, avIiosc cubic capacity of brain shall be iissumed to be e(|ual to lOO, we obtain the following results, where Are also shown the minimum .'ind iiiaNJmum langes of variation in the class : — 1. 0 Cattle Steal ill- - 2. 26 Inebriety - - - - .3. 1.5 Assault and Wonndiii;^ - 4. 144 Larceny - - . . •5. 2G House aiul Slioj)l)i<'akiii;j; - 6. o6 Sexual Offenee.s 7. II Murder and Manslaii;^hter 8. 52 Mi.sce)fa neons crimes Mininiiiiii. Tine .Mean. .Standard Deviation. Maxi- muin. 1280 - 1377±24.31 - 88.28± 17.20 ■ ■ 1516 ■ lli>l - 1423^::17.20 - 129.80±12.14 ■ • 1657 12()N - 1425:^:15.48 - 88.86± 10.95 • - 1595 • 1164 - 1432 ± 5.52 - 98.21 =n 3.90 ■ ■ 1771 1317 - 1435-10.82 - 8I.66± 7.63 • • 1610 ■ 1213 - 1440± 9.09 - 10O.89± 6.43 . - 1668 • 1261 - 14.^6 > 22.98 - 113.()2±16.25 - • 1675 1269 - 1458± 8.73 - 93.33:4= 6.17 ■ 1678 Mlniiiniiii. t'ai«;iiitv. Mtixiniiin !)2.9 - 100. - no. s;^i- obtaining from the surface anatomy figures those for the skull itself. We find the true man of the cephalic index of the 355 ci-iminals to Jje 78.90 + 0.36, and the standard deviation 3.63 + 0.25. The group, as a group, is thus mesaticephalic, as were also the 3000 criminals examined by Macdonell (14) with an index of 78.538. Of the individual groups, all, with the exception of the forgers, are also mesaticephalic, and the forgers just come into the brachycephalic class with an index of 80.36 + 1.64. The results are as follow : — Table of the Ct'phalir Indices of ■>■'>'> Crimitutls. 6 Cattle Stealing - 15 Assault and Woundinj;- .")2 Miscellaneous Crimes - 144 Larceny 11 Mnrdei- and Manslaughter 2() House and Shop-bi'eaking ■It) Sexual Offences .") Embezzlement - 20 Inebriety 14 Forgery The standard deviations in the above table make it evident that, whilst the whole group is. as stated, and bioadly speaking, mesati- cephalic, yet many of tlic classrs range from (lolichocephaly to brachycephaly. As with the age so with the fc]>li;ilic index, tlu've does not appeal" to be any correlation between thi- cephnlir index and ei line. Having thus disposed of the (|iiesf ions of age and ceiibalit' index, we may now revert to the major question, namely, the lorrelation between size of head and intelligence. Tiue Me.iii. Stand.iid Deviation. 77.34± .91 - 3.30^^.64 78.07 d; .61 3.50.i.43 78.25 ±: .3:5 3.61±.23 7S.90i: .18 3.28±:.13 7y.(,K)± .77 3.78i:.54 7».3()^r .40 - 3.01) i. 28 75»:i7±: .34 - 3.83^^.24 79.404:1.10 - 3.!»2,^.73 79..-)7='r .78 o.y3::U.55 80.:Uvul.()4 3.57zh.45 Correlation o/ Brain Capacity and Intelligence. 241 We have already shown, as fairly as we can, that on this point there is a marked diverj^ente of opinion, and we now proi)ose to examine the facts from both the medical and the biometric side with a view to determining how far the present research tends to harmonise the undoubtedly conflicting opinions on the subject. Witli this object in view we shall first submit the results of the present work and the selected objects of comparison in a table wherein are shown the true means of the estimated cubic capacities with their probable errors, the standard deviation of the same with their probable errors, as also the extreme minimum and maximum figures in every class where they are known to us. Concerning this last, Udny Yule (15) has written, " The simplest possible measure of the dispersion of a series of values of a variable is the actual range, i.e., the difference between the greatest and least values observed. While this is frequently quoted, it is as a nde the worst of all possible measures for any serious purpose. There are seldom real upper and lower limits to the possible values of the variable, very large or very small values being only moie or less infrequent; the range is. tliei-cfore, subject to meaningless fluctuations of considerable magnitude according as values of greater or less infrequency happen to have been actually observed." In the table which follows, Yule's objection, the very pioper one jc)f the mathematician, is met by the inclusion of the standard devia- tion, and the individual range of variation is retained for reasons which appeal strongly to the medical man on medical grounds alone. 2'ahli'. of true mfiam^, standard deviations, probable errors and in- dividual range of variation of 355 criminals and other classes oJ comparison. No. Class. ; VliniiiiDiii. True .Mean. Standard Deviatioti. .Maxinunii. :{.-j ■ • Anatomists - 1372 - ir,;i7= 9.80 - 8(5.4()- t;.97 - 1813 34 • Anatomists - 1372 - 15294:: 8.53 - 73.81 -r: 0.O4 - 1050 2.") - Teachers 13.->2 - ir)lln=11.04 - 81.90_^ 7.81 - 1033 >.\:, ■ ■ London StiKl^nts — ir)()7 . — B. A.A.Sc. - — 1495 — ^- ') ■ Embezzlement 1384 - 1175 ±3 1.43 - 103.94:1=22.18 - 1045 4 ■ ■ Melbourne Students 12r,9 - 14f39±42.09 - 120.59±3().27 - 1590 14 . - Forijery 12f)7 - 1459±21.15 - 117.31 il4.95 - 1701 r,2 ■ Miscellaneous 12()!» - 1458± 8.73 - 93.33 - 0.17 - l(i78 11 . - Miirder and Man- » slautfhter 12GI - 14.5<):t:22.98 - 1]3.02± 10.25 - 1075 .")() ■ ■ Sexual Offences 1213 - 11 40.^ 9.09 - 1U0.S9 - (5.43 - 10(iH 2() - House and Shop- bi-eakint^ 1317 - 1435 --10.82 - .Sl.Of.i 7.03 - lOlO 242 Berri/ and Bii'lincr: No. Class. Miiiiiiiuiii. Tnic -Mtaii. Standard Ueviation. >li axiinuiii, 144 . - Larceny - - 11(54 ]4:H2r r,.-i-2 . 98.21 ± 3.90 - 1771 ir, - Assault and Wouud- ing - - 12(58 112r)-lo.4S - S8.8tJ±l(J.95 - 1595 2(5 - Inebriety - - 1191 142«± 17.20 - 129.80± 12.14 - 1657 () ■ • Cattle-steahng - 1280 ■ 1377-i24.:U - 8S.28± 17.20 - 151(5 35o . • Melbourne Criminals 1191 - 1487. 7(5± 10.47 - 99.74± 7.10 - 1771 We do not think that any unprejudiced person can study this table and deny that as regards classes there is an undoubted correla- tion between size of head and intelligence, or, put more accurately, between cubic capacity of brain, as estimated from three diametral head niea.surenients, and intelligence. This statement is the more probable inasmuch as it is strongly supported by the work of Glad- stone, Matiegka, and Costa Ferreira, to which reference has already been made, and w'hose work supports in every detail the general con- clusion here drawn. In view of the fact that Venn and Galton. quoted by Haddon (16), have shown for 100(1 Cambridge students that education prolonged into years of adolescence, as amongst students at a University, increases the size of the brain, we fail to see hoAv the thesis can be contested. We are, of course, aware that many of the opponents of the view talk somewhat vaguely of quality of brain rather than quantity. It has. however, been proved by Fle<'sliig that the short association fibres of the human cerebral coi'tex do not myelinate until such time after birth as education and the exercise of the intellect have stimulated different parts of the ccrebal cortex to act in harmony. If tliere be no education at all. these fibres do not myelinate, an/ni.< ertcliis with his lUOU cc. of brain through the men of the ])alaeolithic CorreldfloiL of Brain CdpacUi/ and Intdiajence. 243 iiges with 1100-J"2()() cc, tlic modern day Anstvaliaii alxnigiiuil with T20()-i:{()0 CO., to the learned classes of the '2(ltli tentuvy with their inoo (c. This is still further supi)orted by Buschan's recent work <7;, which investi>ome subtle and as yet unmeasured and unmeasurable chemical or physical reaction. As thus defined we do not deny the possil)ility of " lirain (piality "' entering into the problem, but there is as yet no jiniof of it. All the facts, as we know then), point to an associa- tion between size of brain and mentality, and per contra we know ■of no evidence cajtalile of scientific investigation which points to <|iialiiy of brain rather than quantity as forming the dominant factor in the mentality of the several classes of mankind. From the evidence of the jiresent work, supported by the facts of Others, and confirmed by the great principles of neurology and anthropolt^gy, we are of opinion that there is an appreciable corre- lation between size of head and intelligence in tlie several social liuman classes. What holds good for the class should also be true for the indivi- ul)iiMl per- centage sufficiently devoid of brains as to loiidcr their lopeatod punisliments foi" acts of which they ai-e liardly i('sj>(uisil)le as undcsirahlc as it wouhl appear to be inhiimane. KEFERENCES. 1. Gladstone, K'. J. — "A jtreliminai'v comnuinical ion on some cephalometrie . - - 26 - 192 - 158 - 130 - 560 - 358 - S2.:5 - 147:? 8 J> .... 4.') - 194 - 150 - 138 - 565 - 360 - 77.3 - 1494 9 ) J . . - - 45 - 193 - 157 - 135 - 563 - 370 - 81.3 - 1516 10 '5 _ . . . 63 - 179 - 146 - 135 - 570 - 35() - 81.6 - 1353 11 >1 - . . - 2o - 189 - 144 - 130 - 540 - 343 - 76.2 - 1355 12 ,, - - - . 41 - 185 - 141 - 124 - 533 - 350 - 76.2 - 1207 13 ,, . - - _ 49 - 195 - 149 - 127 - 545 - 340 - 76.4 - 1398 14 J> _ . . . 40 - 18fi - 150 - 140 - 560 - 362 - 80.6 - 14(i3 15 Ji - - . . 46 - 19!) - 104 - 143 - 571 - ;i69 - 82.4 - 1(585 16 J) .... 69 - 189 - 1()5 - 126 - 541 - 324 - 87.3 - 1408 17 ,, . - . . 21 - 187 - 160 - 135 - 552 - 376 - 85.6 - 1501 18 ., . - - . 31 - 1!)7 - 163 - 147 - (KM) - 380 - 82.7 - 1701 19 . , ... - 24 - 185 - 148 - 135 - 5;«) - 340 - 80.0 - 14(12 20 Wife Desertion 28 - 198 - N!) - 142 - 565 - 370 - 75.3 - 1545 21 Obscene Language - 28 - 180 - 152 - 125 - 545 - 356 - 84.4 - 1321 23 Debt - 33 - 188 - 145 - 126 - 550 - ;«o - 77.1 - 1325 23 Obsuone Language - 24 - 189 - 154 - 130 - 557 . ms - 81.5 - 1426 ^4 R«^eoivin ig ... 30 - 190 - 144 - 125 - 547 - 347 - 75.8 - 1320 1*5 False. Pretences - - 23 - 190 - 140 - 134 - 553 - ;«o - 76.8 - 1407 26 Wife 1> ceertion 2() - 200 - 115 - 137 - 558 - 360 - 72.5 - 1481 27 Ganibliii ig - - - 44 - 198 - 155 - 134 - 565 . 3fj3 - 78.3 - 1522 2S Debt - 33 - 188 - 1 18 - 138 - 550 - ;360 - 78.7 - 1443 '£a Correlation oj Brain Capacitij aad Intelligence. 24' ■w "o -^ iC ^ rt .— C^ SJ S* « "^ 'O •g5 z^-' « sa — _j--^uo' ^, ~' 29 B\ilso Pictcnce-s - - 25 - 199 - 15r) - 188 - 570 - 372 - 77.9 - 1.7;4 30 .. . - 42 - 197 - 14() - ]40 - 565 - 365 - 74.1 - 1497 31 D.>ht - - - - - 36 - 206 - 151 - 132 - 575 - 365 - 73.3 - 1528 32 Vafiiaiuy - - - 51 - 190 - l52 - 140 - 557 - 377 - 80.0 - 1503 33 False Piotences - - 20 - 189 - 131 - 131 - 520 - 342 - 69.3 - 1269 34 Debt .T2 - 200 - 149 - 140 - 573 - 389 - 74.5 - 1539 35 Ob.scPiK- .Language - 25 - 186 - 150 - 128 - 540 - 370 - 80.6 - 1365 36 Maintt'iiance - - 46 - 189 - 148 - 128 - 550 - 360 - 78.3 - 1367 37 Obscene Language- 23 - 198 - 156 - 137 - 570 - 380 - 78.8 - 1557 38 Maintenance - - 29 - 194 - 154 - 130 - 550 - 360 - 79.4 - 1455 39 Vagrancy - - - 28 - 195 - 148 - 136 - 560 - 382 - 75.9 - 1467 40 Suspe<-te(l I'ereon - 31 - 192 - 148 - 124 - 525 - 360 - 77.1 - 1358 41 Vagrancy - - - - 24 - 185 - 150 - 127 - 543 - 358 - 81.1 - 1351 42 Bigamy - - - - 31 - 202 - 153 - 134 - 563 - 372 - 75.7 - 1530 43 Vagrancy - - - 35 - 195 - 162 - 134 - 572 - 362 - 83.1 - 1557 44 Train Wrecking - 27 - 204 - 158 - 134 - 577 - 368 - 77.5 - 1582 45 .Smuggling - - - 57 - 200 - 147 - 140 - 575 - 365 - 73.5 - 1523 46 Vagrancy ... 23 - 197 - 148 - 134 - 549 - 375 - 75.1 - 1462 47 ., ... 47 - 185 - 148 - 129 - 545 - 352 - 80.0 - 1353 48 False Pretences - - 24 - 192 - 141 - 134 - 548 - 360 - 73.4 - 1381 49 Vagrancy - - - 20 - 185 - 149 - 142 - 530 - 360 - 80.5 - 1466 50 Bigamy - - - - 29 - 195 - 150 - 129 - 545 - 345 - 76.9 - 1423 51 Impersonation - - 52 - 195 - 156 - 139 - 565 - 375 - 80.0 - 1556 52 Vagrancy - - - 23 - 182 - 149 - 127 - 535 - 340 - 81.9 - 1328 53 Gold-buying . - . 29 - 182 - 154 - 134 - 555 - 350 - 84.6 - 1419 54 .. - - - 38 - 188 - 156 - 129 - 560 - 362 - 83.0 - 1426 55 ,, ... 24 - 190 - 160 - 133 - 562 - 373 - 84.2 - 1502 56 Bigamy - - - - 68 - 200 - 149 - 134 - 570 - 360 - 74.5 - 1487 57 Kecoiving- - . - 26 - 195 - 148 - 132 - 538 - 348 - 75.9 - 1433 58 f.oitering - - - - 35 - 195 - 154 - 144 - 560 - 380 - 79.0 - 1585 59 Trespa.ssing - - - 47 - 194 - 149 - 130 - 550 - 340 - 76.8 - 1418 60 False Pretences - - 41 - 192 - 160 - 134 - 560 - 366 - 83.3 - 1523 61 iteceiving - - - - 23 - 195 - 160 - 136 - 572 - 375 - 82.1 - 1560 62 Bigamy - - - - 31 - 191 - 156 - 133 - 554 - a54 - 81.7 - 1479 63 Keceiving- - - - 66 - 187 - 156 - 130 - ooo - 354 - 83.4 - 1429 64 Illegally on Premises 23 - 200 - 150 - 130 - 565 - 359 - 75.0 - 1459 65 Suspected I'cnsoii - 57 - 200 - 154 - 136 - 578 - 360 - 77.0 - 1544 66 Vagrancy - . . 43 - 195 - 148 - 126 - 565 - 335 - 75.9 - 1382 67 H..ceiving - - - 27 - 188 - 134 - 130 - 568 - 357 - 71.3 - 1279 f^S .. - - - 27 - 199 - 162 - 144 - 561 - 374 - 81.4 - 1678 69 Vagrancy - - . 29 - 195 - 161 - 136 - 574 - 360 - 82.6 - 1568 70 Arson ----- 63 - 184 - 150 - 130 - 533 - 352 - 81.5 - 1370 'I .. ----- 27 - 195 - 148 - 141 - 562 - 348 - 75.9 - 1510 72 Manslaughter - - 27 - 182 - 143 - 130 - 547 - 350 - 78.6 - 1311 73 Murder - - - - .50 - 197 - 157 - 131 - 570 - 370 - 79.7 - 1504 '•* •• - - - 30 - 192 - 151 - 134 - .568 - 362 - 78.6 - 1456 "5 • - - - - 32 - 190 - 152 - 132 - 36o - 330 - 80.0 - 1435 '^ •• - - - - 30 - 193 - 146 - 136 - 550 - 340 - 75.6 - 1441 248 Berry and Biichner 3^ ■r. 5 'A 9 oj it j= a it ^1 1; . •5~ S 1 1 Murder - - - - 46 - 187 - 142 - 133 - 570 - 331 - 75 9 - 1353 78 ,, - - - - 47 - 185 - 139 - 125 - 528 - 345 - 75.1 - 1261 71) ;> - - 61 - 194 - 152 - 13(i - 545 - 3()0 - 78.4 - 1492 80 l! - - 33 - 195 - 156 - 142 - 572 - 372 - 80.0 - 1583 81 Manslaughter - - 52 - 193 - 161 - 149 - 569 - 370 - 83.4 - 1675 82 Murder - - - - 69 - 195 - 164 - 127 - 560 - 360 - 84.1 - 1506 83 Assault - - - - 27 - 205 - 151 - 136 - 570 - 370 - 73.6 - 1558 84 Murderous Assault - 22 - 195 - 144 - 134 - 550 - 350 - 73.8 - 1420 85 Wounding - - 33 - 198 - 146 - 127 - 550 - 340 - 73.7 - 1392 86 Assault - - - - 30 - 190 - 156 - 147 - 555 - 355 - 82.1 - 1595 87 ,, - - - - 26 - 187 - 152 - 132 - 550 - 375 - 81.3 - 1417 88 )? " " - - 28 - 188 - 152 - 131 - 544 - 344 - 80.9 - 1415 89 ?> - - 47 - 178 - 149 - 122 - 520 - 320 - 83.7 - 1268 90 ,'> " " - - 29 - 194 - 155 - 131 - 558 - 358 - 79.9 - 1471 91 Wounding - - 25 - 184 - 145 - 131 - 535 - 335 - 78.8 - 1343 92 >i - - 25 - 190 - 139 - 130 - 535 - 342 - 73.2 - 1324 93 >> - - 39 - 189 - 149 - 135 - 560 - 362 - 78.8 - 1432 94 Attempted Mui •der- 53 - 200 - 150 - 135 - 561 - 352 - 75.0 - 1503 95 Assault - - - - 30 - 180 - 149 - 130 - 533 - 334 - 82.8 - 1318 96 Criminal Assau lit - 40 - 190 - 150 - 130 - 530 - 340 - 78.9 - 1403 97 )> >) - 23 - 198 - 148 - 140 - 563 - 354 - 74.7 - 1519 98 S xual Offence - - 22 - 197 - 141 - 125 - 550 - 340 - 71.6 - 1334 99 >} }• - - 22 - 187 - 143 - 131 - 545 - 356 - 76.5 - 1345 1(X) }> - - 52 - 198 - 155 - 127 - 554 - 354 - 78.3 - 1458 101 ) J - - 29 - 182 - 139 - 131 - 520 - 345 - 76.4 - 1291 102 )> • • - - 21 - 184 - 142 - 133 - 557 - 355 - 77.2 - 1337 103 >> •> - - 48 - 185 - 151 - 135 - 538 - 372 - 81.6 - 1423 104 J 5 )-• - - 57 - 193 - 152 - 137 - 565 - 365 - 78.8 - 1495 105 ."; M - - 21 - 192 - 159 - 132 - 560 - 355 - 82.8 - 1498 106 ) J }i - - 39 - 193 - 150 - 120 - 540 - 340 - 77.7 - 1335 107 )> )> - - 60 - 201 - 157 - 132 - 568 - 362 - 78.1 - 1537 108 )> - - 23 - 200 - 158 - 140 - 580 - 389 - 79.0 - 1613 109 M >> - - 34 - 191 - 152 - 133 - 550 - 35() - 79.6 - 1449 110 J5 V - - 21 - 189 - 142 - 131 - 530 - 342 - 75.1 - 1348- 111 y> } ' - - 42 - 190 - 149 - 133 - 542 - 370 - 78.4 - 1421 112 >} >) - - 26 - 180 - 148 - 127 - 548 - 340 - 82.2 - 1311 113 I J ?^ - - 33 - 190 - 136 - 134 - 534 - 352 - 71.6 - 1333 114 }> 'J - - 38 - 194 - 151 - 127 - 551 - 326 - 77.8 - 1407 115 ,, ,, - - 58 - 190 - 148 - 140 - 550 - 360 - 77.9 - 1472 116 }> >' - - 32 - 199 - 156 - 129 - 550 - 356 - 78.4 - 1490 117 >} J? - - 35 - 197 - 154 - 137 - 558 - 358 - 78.2 - 1535 118 ') ! • - - 29 - 201 - 150 - 134 - 567 - 360 - 74.6 - 1500 119 ') M - - 54 - 185 - 138 - 129 - 530 - 330 - 74. } '1 - - 56 - 195 - 150 - 140 - 545 - 350 - 76.9 - 1517 121 - - 45 - 185 - 154 - 132 - 545 - 340 - 83.2 - 142(v 122 - - 52 - 200 - 160 - 144 - 570 - 372 - 80.0 - 1668 1 23 .•) - - 61 - 194 - 148 - 130 - 567 - 360 - 76.3 - 1411 124 ,, - - 32 - 205 - 154 - 135 - 578 - 370 - 75.1 - 1565 C(n-rel(ifurn of Brain Capacity and I iitdlujeiiec., 249 .S — 55 l-_>.-, Srxual Offence - - .'W - 1<)() - 100 - 142 - 549 - .'Wl - 84.2 - lo83 12(i ,, ,. - - ;J7 - 189 - 152 - 141 - 571 - ;U() - 8U.4 - 1505 127 '', „ . - 70 - 195 - 160 - 129 - 5(52 - 301 - 82.1 - 1490 128 [', .', - - 00 - 179 - 102 - 135 - 542 - 364 - 90.5 - 1400 129 „ „ - - 32 - 196 - 154 - 127 - 539 - 350 - 78.0 - 1440 130 ,, ,. - - 31 - 185 - 102 - 131 - 578 - 300 - 87.0 - 1408 131 l\ ,] - - 28 - 180 - 150 - 127 - 543 - 340 - 83.9 - 1397 132 ',, ,, - - ;« - 182 - 149 - 127 - 530 - 335 - 81.9 - 1328 133 „ „ - - 32 - 188 - 149 - 142 - 548 - 345 - 79.3 - 1484 134 „ ,, - - 53 - 191 - 150 - 130 - 553 - 370 - 78.5 - 1409 135 „ ,, . - 34 - 197 - 154 - 140 - 570 - 304 - 78.2 - 1562 136 ,, ,, - - 44 - 185 - 144 - 130 - 530 - 348 - 77.8 - 1334 137 ,. .. - - 40 - 202 - 165 - 136 - 587 - 345 - 81.7 - 1645 138 „ ,. - - ^-"J - 19-t - 154 - 150 - 557 - 375 - 79.4 - 1631 139 „ ,, . . 20 - 184 - 146 - 130 - 528 - 350 - 79.3 - 1342 140 ,. „ - - 34 - 192 - 148 - 127 - 550 - 330 - 77J - 1375 141 „ „ - - r,:, - 192 - 148 - 130 - 540 - 350 - 77.1 - 1408 142 „ ,, - - 33 - 179 - 152 - 135 - 523 ^ 350 - 84.9 - 1395 143 „ ,, - - 21 - 190 - 154 - 134 - 551 - 301 - 78.0 - 1501 144 „ ,, - - 21 - 192 - 100 - 130 - odO - 361 - 83.3 - 1487 145 ,. .. - - 35 - 192 - 150 - 128 - 549 - 352 - 78.1 - 1397 146 „ ,, - - 39 - 189 - 151 - 131 - 545 - 360 - 79.9 - 1407 147 „ „ - - 30 - 174 - 150 - 120 - 520 - 330 - 86.2 - 1238 148 „ „ . - 30 - 192 - 160 - 136 - 568 - 365 - 83.3 - 1540 149 „ „ - - 58 - 190 - 138 - 126 - 530 - 359 - 72.6 - 1302 150 ,, .. - - 68 - 196 - 160 - 130 - 553 - ;i50 - 81.6 - 1511 151 ,, ,, ... 70 - 189 - 165 - 127 - 540 - 323 - 87.3 - 1484 152 „ „ - - 23 - 200 - 147 - 134 - 573 - 363 - 73.5 - 1471 153 „ ,, - - 28 - 179 - 134 - 127 - 528 - 320 - 74.9 - 1213 154 Shopbreaking - - 40 - 188 - 150 - 122 - 545 - 334 - 79.8 - 1326 155 Housebreaking - - 25 - 182 - 153 - 134 - 5.53 - 370 - 84.1 - 1412 156 „ - - 27 - 192 - 140 - 131 - 557 - 340 - 72.9 - 1350 157 ,, - - 59 - 196 - 149 - 130 - 569 - 349 - 70.0 - 1551 158 Shopbreaking - - 63 - 178 - 150 - 136 - 542 - 302 - 84.3 - 1383 159 Hou.sebreaking - - 23 - 178 - 154 - 132 - 542 - 300 - 80.5 - 1379 160 .. - - 50 - 196 - 157 - 134 - 553 - 530 - 80.1 - 1525 161 ., - - 24 - 197 - 149 - 131 - 564 - 350 - 75.6 - 1444 162 ,. - - .33 - 190 - 148 - 126 - 540 - 338 - 77.9 - 1356 l(i3 .Shopl)r<-aking - - 22 - 191 - 146 - 132 - 550 - 355 - 70.4 - 1390 1()4 Housebreaking - - 36 - 195 - 154 - 136 - 558 - 362 - 79.0 - 1514 165 „ - - 50 - 190 - 153 - 140 - 568 - 372 - 78.1 - 1548 160 .. - - 24 - 187 - 150 - 125 - 553 - 3^10 - 80.2 - 1345 167 ,. - - 29 - 198 - 160 - 130 - 562 - 360 - 80.8 - 1523 168 ,. - - 3() - 187 - 148 - 130 - 560 - 362 - 79.1 - 1372 109 Sho])breaking - - 25 - 198 - 152 - 134 - 5.'i.") - 345 - 76.8 - 1498 170 Housebreaking - - 22 - 193 - 140 - 133 - 557 - 365 - 75.6 - 1416 171 .. - - 26 - 197 - 161 - 130 - 567 -.355 - 81.7 - 1524 172 Shopbreaking - - 32 - 197 - 160 - 140 - 578 - 372 - 81.2 - 1610 250 Berrij and Bv.hiirr tr. : y. " ►S - 'C' ■£ h2 S 173 Hoiisf 't)reakni<>; - - 30 - 190 - 160 - 130 - 564 - 364 - 84.2 - 1475 174 Shop] )rea iking - - 39 . - 185 - ■ 146 - ■ 126 - 533 - ■ 342 ■ - 78.9 • - 1317 175 Hous<= ■bre aking - - 38 - 184 . - 146 - 128 • • 533 - 3^50 - 79.3 - 1326 176 Shopl )rea king - - 45 - 199 - 153 - 132 - 560 - ■ 357 - - 76.9 - - 1407 177 House 'breaking - - 32 . - 198 . - 160 . - 128 ■ • 550 ■ - 3v36 - 80.8 - 1504 178 Shoi)h irea king - - .>(i . - 188 - . 148 - 130 - 530 - • 325 ■ ■ 78.7 - • 1373 179 House bre aking - - 32 ■ ■ 197 - - 145 ■ ■ 132 - 568 ■ - 370 . - 73.6 ■ - 1430 180 Horse -stealing - - 25 ■ - 182 . - 143 ■ - 126 - ■ 540 - 350 - 78.6 - 1280 181 ,"> - - 32 • ■ 197 . - 145 ■ - 132 - • 568 ■ - 370 • - 73.6 - 1430 182 ,, - - 32 - ■ 183 - 168 - 133 - 565 - ■ 380 ■ • 91.8 - • 1516 188 Sheop- -ste; aliiig - - 30 - 186 - 144 - 125 - 529 - 325 - • 77.4 - • 1300 184 Horsf>- ■ste; almg - - 26 - 195 - 146 - 134 - 562 - 348 - 74.9 - • 1435 185 Sheep- ■stealing -- - 40 - 186 - 144 - 125 - 540 - • 362 - • 77.4 - . 1300 186 Inebriety - - - 44 - ■ 200 ■ 147 - ■ 119 - 574 ■ ■ 372 ■ - 73.5 ■ - 1341 187 - - - 51 - 178 - 144 - 116 - 520 - ■ 330 - - 80.9 • . 1191 188 ' , , - - - 72 - 190 - 147 - 125 - 550 - ■ 359 - • 77.4 ■ - 1341 189 '5 - - - 30 - 190 - 149 - 125 - 550 - • 345 - • 78.4 - - 1335 190 J> ■- - - 43 - 187 - 146 - 122 - 556 - • 361 - • 78.1 - ■ 1207 191 !) - - - 45 - 190 - 140 - 126 - 534 - ■ 340 ■ 73.7 - . 1300 192 •3 - - - 27 - 195 - 145 - 131 - 556 - ■ 365 - 74.4 . . 1403 193 ?; . - - 43 - 190 - 150 - 130 - 545 - 361 - ■ 78.9 - . 1403 194 ) J - - - 65 - 190 - 143 - 128 - 545 - 345 - 75.3 - 1337 195 - - - 63 - 185 - 150 - 131 - 549 - 363 - 81.1 - 1384 196 ,',' - - - 49 - 187 - 159 - 132 - 572 - 370 - 85.0 - 1468 197 55 ■ . . - 64 - 180 - 146 - 126 - 526 - 340 - 81.1 - 1290 198 _ - - 72 - 206 - 149 - 131 - 564 - 350 - 72.3 - 1494 199 . . - 46 - 190 - 150 - 133 - 543 - 355 - 78.9 - 1428 200 - . - 34 - 200 - 157 - 136 - 584 - 370 - 78.5 - 1568 201 J * _ . - 40 - 170 - 155 - 124 - 540 - 348 - 91.2 - 1277 202 . - - 63 - 189 - 153 - 133 - 550 - 360 - 81.0 - 1445 203 ) 1 - - - 66 - 185 - 156 - 128 - 540 - . -53 - 84.3 - 1400 204 J J . . - 60 - 195 - 159 - 141 - 565 - 380 - 81.5 - 1599 205 > ^ _ - 52 - 203 - 15() - 140 - 574 - 382 - 76.8 - 1616 206 J ) . . - 28 - 203 - 160 - 140 - 578 - 370 - 78.8 - 1<)49 207 J 5 _ - 49 - 190 - 146 - 126 - 545 - 350 - 76.8 - 1342 208 _ - 29 - 190 - 152 - 130 - 545 - 355 - 80.0 - 1418 209 . - 51 - 197 - 162 - 140 - tUK) - 365 - 82.2 - 162t) 210 . - 48 - 188 - 152 - 132 - 544 - 340 - 80.9 - 1463 211 _ - 51 - 198 - 165 - 137 - (iOO - 370 - 83.3 - 1657 212 Larcfiiy _ - 42 - 188 - 142 - 124 - 530 - 325 - 75.5 - 1288 213 . - 24 - 195 - 148 - 135 - 570 - 368 - 75.9 - 1459 214 . - 64 - 190 - 140 - 130 - 550 - 350 - 73.7 - 1322 215 _ - 38 - 187 - 143 - 121 - 549 - 345 - 76.5 - 1267 216 _ - 26 - 187 - 146 - 125 - 552 - 360 - 78.1 - 1318 217 _ - 51 - 180 - 146 - 130 - 543 - 370 - 81.1 - 1320 218 . - 40 - 184 - 152 - 133 - 545 - 367 - 82.6 - 1408 219 • _ - 33 - 188 - 149 - 133 - 535 - 357 - 79 3 - 1410 220 M - - - 39 - 202 > 155 - 12() - 590 - 365 - 76.7 - 1471 Coi'i-t'ldtioii of Brain C25 ,, •226 iJ27 228 ., 229 , J 230 231 ^ i232 ,, 233 •> 234 23o ?> :236 ,") 237 238 i239 ii40 241 J, ii42 ., 243 ., 244 )) 245 9 9 246 247 248 249 , J 250 >j 251 ^ 252 , , 253 ,, 254 ^, 255 250 257 ItoblxTV 258 Larcoiiy 259 26U 2(51 l{<)l)l)(>ry 262 Laiceuj' 263 •2M Hobhory 2(j.-, l^ai<«'iiy 2()() 267 , J 268 J' 29 - 189 - 23 - 192 - 27 - 198 - 38 - 188 - 36 - 19(J - 54 - 198 - 22 - 196 - 22 - 194 - 37 - 192 - 36 - 184 - 42 - 192 - 24 - 190 - 66 - 190 - 33 - 179 - 25 - 190 - 38 - 188 - 23 - 191 - 23 - 188 - 45 - 191 - 47 - 20O - 31 - 186 - 33 - 198 - 50 - 198 - 28 - 196 - 30 - 195 - 28 - 203 - 23 - 189 - 30 - 194 - 24 - 195 - 28 - 192 - 21 - 187 - 24 - 177 - 29 - 194 - 25 - 192 - 41 - 192 - 53 - 192 - 35 - 186 - 57 - 196 - 24 - 195 - 30 - 195 - 27 - 192 - 23 - 192 - 22 - 189 - 21 - 180 - 50 - 183 - 61 - 175 - 25 - 189 - 28 - 194 - 150 - 149 - 157 - 152 - 144 - 142 - 145 - 145- 142 - 150 - 147 - 142 - 138 - 149 - 148 - 145 - 156 - 141 - 151 - 154 - 154 - 153 - 159 - 146 - 158 - 145 - 154 - 144 - 157 - 146 - 151 - 156 - 149 - 150 - 159 - 146 - 147 - 152 - 147 - 150 - 152 - 163 - 148 - 135 - 159 - 148 - 160 - 144 - 122 134 129 120 125 130 135 140 130 125 129 139 134 134 132 128 136 125 126 134 129 135 132 136 143 130 141 132 128 134 140 132 143 134 126 132 137 130 143 135 127 132 130 132 136 125 130 136 si K 5£ 552 547 570 545 544 558 564 550 565 538 550 547 535 523 545 545 557 545 565 565 553 568 550 554 560 555 550 550 543 554 540 542 568 560 552 555 525 570 570 562 557 570 542 524 575 581 555 358 365 359 340 340 362 362 390 360 343 345 345 330 350 325 360 360 345 355 370 360 380 360 370 352 376 360 350 350 360 350 360 378 380 360 3.50 345 370 390 350 355 370 342 353 365 366 368 362 — X 79.4 . 77.6 - 79.3 ■ 80.9 . 75.8 ■ 71.7 . 74.0 . 76.8 . 74.0 - 81.5 ■ 76.6 ■ 74.7 - 72.6 . 83.2 ■ 77.9 ■ 77.1 . 81.7 - 75.0 ■ 79.1 - 77.0 ■ 82.8 - 77.3 ■ 80.3 . 74.5 ■ 81.0 ■ 71.4 ■ 81.5 • 74.2 ■ 80.5 • 76.0 - 80.7 - 88.1 ■ 76.8 - 78.1 - 82.8 - 76.0 ■ 79.0 - 77.6 ■ 75.4 - 76.9 - 79.2 - 84.9 • 78.3 - 75.0 - 86.9 - 84.6 - 84.7 - 74.2 - 9\ 1331 1441 1491 1322 1320 1388 1441 1503 1356 1329 1384 1417 1355 1374 1405 1341 1514 1305 1372 1526 14Q1 1515 1534 1458 1609 1437 1521 1398 1465 1418 1477 1397 1529 1448 1444 1402 1417 1452 1519 1474 1403 1527 1383 1260 1478 1269 1469 1431 252 Hrrri/ dud Hi'irhher a. 5 269 Liircony 270 ,^ 271 ;' 272 278 , , 274 ,. 275 )' 276 ? t 277 278 ,, 279 ,, 280 ,, 281 282 Stealing 283 iLarceiiy 284 285 ;• 286 287 ,. 288 ^89 ,, 290 291 292 y 293 y 294 295 Thefc 29f! Laicoiiy 297 298 , , 299 l?ohberv 300 liarcoiiy 301 302 Thoft 303 304 fjiirfcii\- 305 SUvilin.;- 3()(i IjarcfMiy 307 Stcaliim 308 Larcpiiy 309 310 311 J{()!>l)ei\- 312 liiwvvwy 313 314 , 315 ., 31 G 68 - 195 - 39 - 19(5 - 32 - 200 - 51 - 190 - 33 - 202 - 40 - 184 - 2G - 184 - 53 -'l86 - 37 - 193 - 26 - 188 - 39 - 198 - 27 - 188 - 50 - 194 - 26 - 192 - 31 - 189 - 37 - 185 - 36 - 185 - 32 - 184 - 55 - 190 - 48 - 192 - 38 - 192 - 40 - 195 - 26 - 197 - 29 - 196 - 41 - 183 - 48 - 191 - 63 - 196 - 65 - 199 - 50 - 194 - 38 - 186 - 42 - 200 - 35 28 29 42 49 188 182 189 200 TB8 40 - 188 28 - 200 35 - 182 40 - 192 31 - 187 50 - 20() 23 - 189 31 - 194 38 - 192 32 - 200 26 - 185 27 - M)l 160 - 153 - 149 - 149 - 156 - 140 - 139 - 146 - 156 - 146 - 146 - 144 - 156 - 158 - 152 - 148 - 150 - 140 - 154 - 160 - 150 - 152- 153 - 158 - 154 - 153 - 158 - 154 - 150 - 152 - 161 - 146 - 150 - 154 - 149 - 142 - 160 - 157 - 144 - 152 - 152 - 1()2 - 150 - 151 - 157 - 156 - 146 - 142 - 124 137 134 133 136 131 137 120 140 130 136 130 134 142 130 128 126 121 125 130 130 134 134 136 140 131 130 138 127 129 140 133 130 130 130 132 133 130 123 138 137 142 142 141 vn 138 130 132 "51 - 550 - 570 - 562 - 'jijO - 573 - 525 - 535 - 530 - 550 - 548 - 560 - 518 - 562 - 576 - 542 - 539 - 540 - 550 - 550 - 550 - 563 - 551" - 552 - 556 - 581 - 567 - 570 - 545 - 547 - 520 - 584 - 5aj - 552 - 540 - 563 - 540 - 560 - 570 - 523 - 560 - 540 - 580 - 540 - 547 - 564 - 574 - 545 - 5.S1 330 370 345 352 3(i3 344 342 325 3(50 330 350 330 362 380 350 344 350 345 348 354 372 360 355 364 362 370 349 350 342 345 340 350 342 350 340 3(50 355 358 324 3(52 355 370 365 346 262 364 3(50 310 - 82.1 - - 78.1 - - 74.5 - - 78.4 - - 77.2 - - 76.1 - - 75.6 - - 78.5 - - 80.8 - - 77.7 - - 73.7 - - 76. 6 - - 80.4 - - 82.3 - - 80.4 - - 80.0 - - 81.1 - - 77.2 - - 81.1 - - 83.3 - - 78.1 - - 77.9 - - 77.7 - - 80.6 - - 84.2 - - 80.1 - - 80.6 - - 77.4 - - 77.3 - - 81.7 - - 80.5 - 1 1 . 1 - - 82.4 - - 81.5 - - 74.5 - - 75.5 - - 85.1 - - 78.5 - - 79.1 - - 79.2 - - 81.3 - - 78. (; - - 79.4 - - 77.8 - - 81.8 - - 78.0 - - 78.9 - - 71.3 - 145(» 1521 1487 1421 1572 1308 1346 1273 1553 1364 1469 1350 1505 1580 1412 1345 1343 1246 1389 1487 1414 1481 1500' 1551 1475 1439 1496 1556 1400 1387 1(5:^8 1388 1351> 14J2(5 1451 1351 1490 1512 1295 1498 1459 1705 1498 1528 1474 1578 1348 I3;i7 Correlatiov of Hroiii (■(ipucitu anJ I it I ell }< fence . 253 317 liiirreny 318 31i) 3-_>() Robbory 321 322 323 Larceny 324 325 32G 327 Theft 328 Larceny 329 330 331 Robbery 332 Larceny 333 334 Robbery 335 Larceny- 336 Kobbery 337 Larceny 338 339 340 341 342 343 344 345 Ua Theft . 347 Larceny 348 Robbery 349 Larceny 330 351 352 353 Robbery 354 355 m - 192 58 - 200 33 - 184 34 - 184 48 - 180 35 - I8(i 27 - 197 36 - 194 29 - 190 30 - 176 41 - 183 66 - 189 28 - 180 33 - 197 26 - 186 52 - 193 27 - 190 45 - 194 46 - 195 26 - 196 29 - 189 57 - 195 45 - 189 39 - 205 65 49 46 55 26 29 48 170 195 194 190 197 185 195 27 - 181 51 - 196 21 - 184 29 - 190 25 - 182 26 - 189 38 - 195 26 - 190 152 149 149 150 160 152 148 156 136 138 139 145 155 170 152 153 150 160 154 160 143 149 157 160 132 150 161 154 150 154 146 138 149 146 144 153 150 153 154 125 - 137 - 128 - 134 - 132 - 13(i - 140 - 140 - 130 - 126 - 128 - 134 - 128 - 148 - 128 - 120 - 140 - 134 - 140 - 136 - 130 - 137 - 130 - 150 - 128 - 133 - 135 - 122 - 128 - 143 - 140 - 126 - 136 - 124 - 130 - 134 - 130 - 132 - 135 - 558 578 537 561 545 525 555 560 570 548 561 560 549 571 544 540 545 570 562 56() 550 562 548 574 512 545 562 550 548 548 538 536 569 532 548 553 548 570 ~)00 335 3()2 345 371 352 345 345 360 367 34 (i 350 3()0 352 368 344 335 354 360 362 3(55 349 360 345 380 345 342 362 348 349 330 360 334 362 350 330 370 361 362 368 - 74.5 - 81.0 - 81.5 - 86 .'0 - 81.7 - 75.1 80.4 - 71.6 - 78.4 - 7(i.l) - 76.7 - 86.1 - 86.2 - 81.7 - 79.3 - 78.9 - 82.5 - 79.0 - 81.6 - 75.7 - 76.4 - 83.1 - 78.0 - 77.6 - 76.9 - 83.0 - 81.1 - 7().l - 83.2 - 74.9 - 7().2 - 76.0 - 79.3 - 75.8 - 84.1 - 79.4 - 78.5 - 81.1 1386 1513 1347 1405 1469 1445 1513 1559 1303 1203 1274 i;^4 1365 1771 1378 1407 1487 153G 1549 1567 1348 1484 1448 1750 1164 1474 1553 1350 1425 1511 1485 1242 1481 1295 1360 1412 1398 1471 1475 [Pkoc. Koy. Soc. Victoria, 25 (N.S.), J't. II.. 19i:i.J Ak'I'. XXI.— 7'A^' CorrcbUloa of Size of Head tnul InteliUfence as Efit'iniated front the Cubic Capari/i/ of Brain oj oo Melboitni.e (Jrimituih Ha/n,yed for Murder. RICHAIID J. A. BERllY, M.U., F.li.S.E. (Professor of Anatomy in the University of Melbourne) L. AV. a. BUCHNKll (lace at 8 a.m., and the body renuiins upon the gallows for not less than an houi-. An incpiest is held, and about 3 p.m. the head is shavecl anil a cast made. It would ajtpear that sueh casts have been con- sistently made until about llM)j, wlujreafter the procedure, has ap- parently been discontinued, inasnuich as there is no cast subsec]uent to that of James AVilliams, who was hanged upon the 8th Septemljer, 1904. Corridntioii of Brti'iii ('(i.paclfi/ mid I iilt'Ui(iii iis that the |M)ssil)ility of erior was sufh- ciently great as to renhysiological causes of death in judicial death by hanging. To this interesting phase of the subject we shall recur later. In view of these tlnee undoubted sources of error, which were patently obvious to us before even more than two or three of the casts were measured, it became a real problem as to whether it Avas worth while continuing the research. In view, however, of the interesting possibilities opened up by the source of error due to the oedema, we decided to contintie the work, and Ave shall pre- sently relate the methods adopted by us to reduce the threefold source of error to a minimum for the purposes of estimating the cubic capacity of brain. Before dealing Avith this point, it Avill be well to say sometliing of the sex and nationality of the material, and of the technique employed by us in the research. As already stated., our material comprises the casts of the heads of .■).'5 criminals hanged for murder and other crimes in Melbourne between the years 1853 and 1904. Amongst tliese are some of AA-orld-wide notoriety, such as Albert Williams, alias " Deeming," Edward or " Ned " Kelly, the celebrated Australian bushranger, as also " Captain " George Melville, and many other equally in- famous but less Avell known murderers. Of the .■)■) all are males except 3, the three females being Martha Needle, hanged upon the 22nd October, 1894; Frances Knorr, on the IHth January, 1894; and Emma Williams, ujion tlie 4th November, 1805. As regards nationality, all but three are Caucnsiaii, the three exceptions being Fatta Chand, a Hindu, Ah C.aa a Chinese, and Frederick Jordan, an American negro. Tlie oedema already re- fened to was particularly Avell marked in the case of the Chinese. Of the remaining 27 male Caucasians, all are of Anglo-Saxon stock except three — namely, Filipi CastiUo. an Italian. August Tisler, a Russian Finn, and Basilio Bondietto, a Swi.ss Italian. 'I'ho ages are, in the majority of cases, unknown to us, and this notwitlistanding a careful search through tlie legal nrords ; the reason, of course, being tliat in many instances the antecedents of t.hese criminals were nllogether unkrioAvn even to the properly-con- ixtitutefl h^gal authorit ios. AVe cannot, tlierefori". deal witli the (luesfion of age. Such being the material, we may now i)ass to the techniipie. Til.' incasui-einents Avere the niaxiiiiuni length, maximum breadth ami auridilar height, and the mode of recording thcMu was in Correlation of Bi'a'nt Co pari ft/ and Intdligenrr. 257 accordance with the instnutidiis of the Aiitliropometric Committee of the British Association for the Advancement of Science. The formula for the calculation of the estimated cubic capacity of brain was that emphjyed by us in our previous paper. (1), and for tlie reasons therein athbiced — namely. Jjce's foitiiula. No. 14, which for each sex is as follows : — J" 0 = 0.000337 (L-11) (15-11) (H-11) +400.01 2 C = 0.000400 (L-ll) (l",-ll) (K-11) +20G.G0 We have already stated that the nationality of these 33 criminals was not always the same, and the ([uestion immediately arises as to whether Miss Lee's formula is e(|ually applicable to all races. Miss Lee has herself, in a very able paper (2), investigated this very point, and states that " rlie ^'enei-al rule for de'])rieviMl itmnlereis serving a lifi' sentence in commutation of hanging, but in view of the conipai'atively larire numiu'i'. it is oidv reasonable to assume that they "were )'epriev-.> condemned Melbourne murderers. Omitting decimal poinls. the true means of the lengths of heads as measured upon the casts e.veeed the Parkhurst figures by 7 mm., and the small group (d' 11 reprieved Melbourne mtirdereis by in nini. The cor- responding excess for the breadth is 10 and H mm., and foi' height 2 ami 4 mm. rcs|)ectivt'ly. On e.xamining the data afforded by this table it is at once clear that of the standard gioiips of com])arison, the small .Melbourne group is open to the objectimi of insutiiciency of nvnnbers, and also affords the greater ])ossil)li' errors throughout. Further, had we correcte(l the Melixuiiiie casts from the figures attained l)y the 11 living and reprieved Melbourne murderers, the i-ubic capacity of Inain for the 3.} murderers hangeil would have hvrw I'tmsiderably less than we sliall subse(|Uently show it to be. (hi the other hand if we establish direct comparisons between the true means of length, breadth and height for the .■)(*) Parkhurst acity of brain as calculated from the uncorrected figures of the casts, as well as the final anst to the highest. It will be noted thai the notorious " Deeming " oeeujdcs the second lowest Correlation of lirnin Capaclf// ortd riifcllif/rtirr. 201 place upon tlie tabic, "vvith " Ned " Kelly in tliu sixth position. Of the female murderesses tine. Martha Needle, is eix'dited bv the corrected reading ■\vitli a surprisingly small amount of inain — namely, 1121.5 c.e. In Table III. is established a direct comparison i)ctwi'cn the English Pail^hurst ujurdcrci' and tlie Australian mui'di-rcr. Here are al.so shown the uncorrected and corrected figures for both the male and female Australian ci'iminals. f'oncenti'ating oui- atten- tion solclv uiMiu the cori'ccted readings, the tal)lc cstai)lislK's the tact that the English muidcrci- is a slightly moi-e intelligent ])erson than is his Australian confrere, for the true mean of the former is 1491 ±10.25, as against the hitter's 1471.9^10.57. What, however, is m(n-e important than the slight difference of the ti-ue mean in favour of the English criminal, is the fact that a study of the standard deviations, as well as of the individual range of variation shows cleai"ly that nnirder, as a crime, is not nearly so restricted to one section of the conmiunity in England as in Australia. Why this should be we have no jiieans of knowing, but wc think the table clearly reveals that such is the case. In Table IV. we have instituted a comparison of the cidiic cai»acity of brain of these English and Au.stralian murderers with those several learned classes utiliseil by us in o\ir juevious com- munication on this subject (1). The general result attained by this table confirms the conclusions pi'eviously drawn—namely, that for clas.ses there is an appreciable correlation between size of head and intelligence. It will be seen that the three groups of crinnnals -Avr at the bottom of the list altogether behind the true means of the learned classes. The same geiK-ral conclusion also holds good for the females where we have been enabled to institute a dii-ect com- parison between three Melbourne murderes.ses and 'M) Bedford Col- lege women students. For the latter figui-es we aie indebted to the work of Miss Lee (2). from whose statistics we have ourselves cal- culated the standard deviations and probable errors. The table shows clearly that for the classes of both sexes the correlation be- tween size of head and intelligemc would ai)i)ear to hold good. In Table V., the last of the series, we have instituted a com- parison between the corrected cubic capacity of each individual Melbourne murderer and the true means of the several learned and criminal classes of our previous work (1). The list is headed by six criminals, then follow two of the learned classes, two nuire criminals, another of the learned classes, two more crinnnals, and finally the last of the educated groups. Of the 27 individual Melbourne murderers herein dealt with, no less tlian 262 lierrii mid /iHcliner: ().*5 per (.ciit. fall altojL^etlicr liehiiid llie lowest uf ihc several learned groups. Ill view of the severity of the eomparisou established by this table, the result is a surjuisin^- one, and seems to furnish one more additional jiniof of the truth of the statement that in the ease of elasses tlieie is an undoulited eoirelatiiui hetween size of head and intelligenee. In view of the fact that the table is headed liy six criminals, we tlutught it advisalile to seareh the eriminal reeoids in order to aseei'tain, if possiiile. if these six had been v liurglary. His retord is ;i black (Uie, and his ti'eatment of women, children and dumb animals was particularly diabolical. Like Hall, he was hanged for the murder of his wife, and like Hall he was an alcoholic and a sexual maniac. Charles liushbee, dims " Uaker, " closely resembles ^'oung. There call be no doubt from his record that he was an alcoholic and a sexual maniac. The most surprising thing about IJushbee is that, at the tiini' of his trial, any medical man could be found, as actually occurred, who could enter a witness box and testify to the man s sanity, for here is his record prior to tiie crime U^v which he was hanged. On the Tlh Octobei'. I.'^TT. he attempted suicide by drown- ing at Sandhurst, having been " liisaiiiiointed in love." Vov this lie was arrested and conmiitted to Kew Lunatic .\syhun. On his diseliargc from the asvluni he was lost sigiit of for some time, but siibse(pien(ly reajipears in the records of Vent ridge (Jaol. Here are recoriled against him manv ((Uiviotioiis for passing wm-thless (Correlation of Brain Ca.pac'dn "'"^ I utell'ujence. 26o che(iuos. and fui- Juipirv. as also for dninkenness and associatiii}; with jirostitutcs. Vet in tliu lacu of this jiartitularly black record, metlical witnesses went into the witness box some years later to testify tf( the e and knot are adjusted with the exprt'ss object of ]u-odueiiig. with the "drop," fracture of the vertebra referre(l to and instantaneous death. Yet our I'ecords show that this may oidy oecasioiially be the case, and that in other instances death inay be of a moic lingering character. It seems to us. on the evidence at oiir disjiosal. that the physiology of judicial deatli ])y ]ian;:ing is but imperfectly known, and it 264 Bcrrif (1 11(1 HihltiK'v : mij^lit well be, that iichner, \,. W . (i. — ^" Tiie correlation of size of head and intelligciut' as t'stiiiiated from the cubic capacity of brain of 355 Melbftui iic criminals." Preceding article. 2. Lee, Alice. — " Data for tlic iM<.l)Iriii of evolution in Man. — VI. Correlation o/ Bniin Capdcity and luteUitjencc. 265 A first study of tlic ((.irclatioii of tlic- human skull." Trans. Hoy. Soc, A. V..1. I!)r.. Pp. 22'}-2('A. o. (Iritliths, (J. ]i. — " .Mcasuit'inonts of one hundred and tliirtv iriininals." liic.nut rika. Vol. III., 1904, pp. 60-62. 4. Wood-Jones, F. — " Thi' lesions caused by judicial hanging." British Medical Jomiial. 14th September, 1012, P. 646. 'V\nu<: T. Details of 33 .Melltourne Criminals han-'ed for Murder. Cu))ic Cubic Order Name Date h B H I 'aj>acit\- un- Capacity cor- corrected rected 1. Alfred Archer - 21/ 11/ 1898 - 193 - 148 - 136 - 1450.3 - 1327.2 2. A. Williams " Deeoiin*^ 23/5/1892 - 192 - 161 - 129 - 1485.6 - ■ 1358.2 A . Williaius " Deeminjj^ " - 189 - 160 - 130 - 1469.6 - 1343.1 A. Williams " Deemin4 1(550 1712 Tablk IV. Comparison of the Cul)ic ('apacity of Brain of Murderers, Criminals and Learned (-lasses. No. Clas-. Mill. TriU! Mean. standard Deviation. Ma\. 35 - Anatomists 1372 - 1537.0 :i: 9.86 - 86.40±6.97 - 1813 25 - University ('oUegf Staff 1352 - 151 I.O ±11.01. - 81.i»0±7.81 - 1(533 215 - London Students — - l.")07.o — — British Association A. Sc. — - 1495.0 — — 36 - Parkhurst Munlrrcrs - 12S() - 1 1-!)1.5 -10.25 - 91.18±:7.25 - 1712 27 - Melbourne Murderers - 1327 - 1471.9 i: 10.57 - 81.374:7 47 - 16.")0 355 - Melboiu-Uf^ (hirninnls - 1 19! - 1 |.37.7(> 10.47 - 90.74^:7.10 - 1771 30 - Bedford Colleg.^ 1201) - 1390 ±13.75 - 111.55± 9.72 - i()47 3 - Melbourne Murderesses 1125 - 1340.0 i-(53. 15 - 161.08^44.77 - 1516 Correhitloii of Brain CtqMclfij 2 - Miscellaneous Crimes 12(59 - 1458.0=1 =8.78 - 98.88±6.17 - 1678 August Tisler — - 1458.2 - — - -- 11 - Murder and Manslaughter 12G1 - 1456.0d =22.98 - 118.02^:16.25 - 1675 James Williams — - 1454.7 - — - — Robert Landells — - 1452.4 - — - — Ernest Knoi — - 1441.1 - — . — ."iO - Sexual (Offences 1218 - 144().()±9.03 - I(M).89±6.48 - 1668 L'O - House and Shop-breaking - i:{17 - 1485.6, = 10.82 - 8l.()6i:7.68 - 1610 lit - Larceny - . - 11()4 - 1432.0a =5.52 - 98.213=8.90 - 1771 John Kelly - - - — - 1480.2 - - . - 15 - Assault :ind Wounding 12(iS - I425.()j = 15.48 - 88.86=3 1<».95 - 1595 2G - Inebriety IKtl - 1 428.0 r ^17.20 - 129.80 2=12.14 - 1657 William Barnes — - 1420.6 - — - — Filipi C. Castillo — - 1417.6 - — - — William Hastings - — - 1413.9 - — - — Edward ("Ned") Kelly - - - 1W5.1 - — - — John Wilson - 1888.9 - — - — Albert Edward Macnamara — - 1878.9 - — - — 6 - Cattle-stealing 1280 - 1377.0- =24.31 - 88.28=^17.20 - 1516 John Weechurch — - 1876.7 - — - — Albert Williams (''Deeming"' ) - - 1858.2 - — - — Alfred Archer — - 1827.2 . — - — [Pkoc. Rot. Soc. Victoria. 25 (N.S). I'r. U., 1913. Akt. XXII. — On the Country hetweeu Melbourne and the Dandenoiig Creek. By T. S. hart, M.A., B.C.E., F.G.8. [Read 14tli November, 1912]. The area whose features are now dealt with extends from the Yarra, near Toorak and Hawthorn, south-easterly to the Dandenong Cieek. A part of it is inchided in quarter sheets Xos. I. S.E. and I. N.E. of the Geoh)gical Survey of Victoria. The Lands- Department contour maps of Melbourne and subui'bs extend to beyond IJox Hill and Oakleigh, and further contour maps of the same d('i>artriieiit cover the parish of Moorabbin, and the country south of the (iijjpslaiid railway as far as Dandenong. Mr. Saxton kindly directed my attention to the latter map, and also furnislied me with levels of several other points. In 191U. Mr. J. T. Jutson' in " A Contribution to the Physio- graphy of the Yarra and Dandenong Creek Basins," dealt with a part of this district, but not so much with the southern part. His conclusions, so far as relevant to the present subject, may be summarised as follows : — The general slope of the country from about Sui-rey Hills and Mitcham is south-westerly. The name of the Mitcham Axis is given to a line of high land through tiiesc two i)laces turning north- east fi-om Mitcham. .Main Creek, and another further west, follow down the general slopi- to (Jardiner's Creek. Gardiner's Ci'eek flows from lower countrv aliout .\! urrumbeena through higher country north (»!' Malvein. He consideis that Main Creek may have oiiginally ci>ntinued south-west, and thai Gardiner's Creek has cut rapidly back and captured the upi)er i)art of the. original Main Creek. He admits ditlicullies in the north-westerly courses of Scotch- man's Creek and the Elsternwick Creek. Alternatively he suggests, that Gardiner's Creek and its tributaries may be antecedent streams. 1 Proc. l!o\. Soc. \i(t(>ri:i, vol. wiii. (Niu SciUs). |.i>. J(t!t-.'.U. Country Sout/i of )'orni. 260 He suggests alsD tliat the " Croydon Seiikuiigsfcld "' iiicliiat regularity in Brighton and Moorabbin, but affected by the southward fall to the ("arruiu Swainp in the more easterly parts. An important axis extends from Mitel)am to the vicinity of Cheltenham and Blackrock. on the line of the continua- tion of the north-east end of .Tutson's Mitchani axis. Another im- portant divide extends fi-om South Yaiia to Dandenong, and no outlet can have existed for Main Creek to the south-west. At Murrumbeena, on the contrary, there is a recent diveision of waters north into Gardinei-"s Creek. The numerous closed and ill-drained holh)ws and some other ])oints will also l)e referred to. General Descripti,on of the Area. A ])art of tliis district drains to tlie Yarra, either direct or by way of Gardiner's Creek. South of this the outlet is direct to Poit Phillip by the Elsternwiek Creek, and a series of jiarallel valleys through Brighton and Sandringliam. Betwfcn Cheltt-niiaTii and Dandenong the waters mm naturally to the Carium Swam]>. With the assistance of shallow drains, waters from near Oakleigh are discharged through this area. The Sjiringvale valley i-uns south-east, and turns south near Dandenong. It i-eceives tributaries from the north from a little beyond the Fern Tree Gully-idad. A small area about (ilcn Waverlev discharges into Scotchman's Creek, ahead of Gardiner's Creek. From "Wheeler's Hill to Mitcham a triangular area falls direct to the Dandenong Creek. The cliief dividing line extends from Mitcham south-westerly through Notting Hill to Cheltenham. Parallel to this is the liighlaml from north of Suirey Hills to Malvern, broken by the outlet of Gardiner's Creek. Ti-ansverse to the.se is the divide from South Yarra to near Dandenong, on the south-west side of tlio valleys of Gardiner's Creek, and the Springvale Creek. The south- west limit of the Elsternwiek Cieek is a parallel lino, as are also the divides between the Brighton valleys. The high land from Wheeler's Hill north-westerly is parallel to these, and iti the same line is the Reservoir Hill at Surrey Hills, ami the south limit of the Koonun*' Creek further to the noith-wi'st. South-east from 270 T. S. Hart: Wheeler's Hill aie the Police Paddock Hills, and the Dandeiiong Creek contracts its valley to pass between these and Wheeler's Hill, as well as changing to a south-easterly direction. The simplicity of su(;h a rectangular {)lan is broken by the way in which the Gardiner's Ci-eek catchment is enlarged at the expense of its neighbours, dnrd in er's ( ' ri'fk . Nortli-west of the Malvern Cauiberwell higlilaiid, the, fall is direct to the Yarra. The valley from near Malvern railway sta- tion has a very direct north-west couise. The outlet of Gardiner's Creek has also a nortli-west direction, and a valley no doubt con- tinues under the basalt to join the buiicd valley of the Yarra. The fall would bo steeper than is now seen in (Gardiner's Creek. From the junction of (lardiner's Creek and Main Creek the fall is from 85 to 25 above sea level in three miles. A mile and a-half lower, (iardiner's Creek joins the Yarra at "J feet above sea level; the probable junction of the buried valleys is a mile or a mile and a half furthei' on, and about GO feet below sea level. Even allow- ing the l)uried valley to extend some distance up (lardiner's Creek, the fall will still be greater than the 20 feet to the mile higher up the valley. The natural continuation of the (Tardinei's Creek valley is by Scotchman's Creek tlirough Oakleigh ; a little valley can be followed south-east to Netting Hill. But by far the greater part of the area drained by Gardiner's Creek and Scotchman's Creek is to the north of the main line of Gardiner's Creek. The contributions from the south are insigniiicant in amount, and the most important of these, the little rr«'ek at Murrumbeena. will be .shown later to bo new. The mouth of Gardiner's Creek must lie a ipiite early feature. Probably the whole system ilevelop«>d soon rn()ugh to secure the waters of the area about Blackburn, which might have gone to Koonung Cieek, and to capture Black Kbit (Glen Waverley) from (lie eastern vall(\vs. Throughout the Gardiner's Creek area the streams have cut down to tlu; bedi-ock. .\ much largei- proportion of the rainfall must In; immediately discharged than by a system in the absor]>tive tertiaiv jocks. The excavating jn.wer of the streams is tlmrciln- increased, aiul the higher levels allow deeper dissection than in the country to the south. No undiained ai'eas of the kinil common fui-ther south occur. Detail of the course of the creeks is inHuenced by bedrock structures, which no doubt con- )ril)u(e to the numei'ous small irregulai"ities. Country South of YdrnL 271 Are(( ilrdinnnj In Jidhicht ra ami h'lstennnck. A short (listiincL' sdiitli (if the Malvern tailway station is a swamiiy area t'oniieily known as Paddy's Swamp. The 140 ft. contoiii- I'liiis i-onnd an area aliout 40 chains by 10, leaving an outlet at the west end. which, however. I'annot drain away all the surface water. Thence the valley falls south-west and west to ihe Hat at Jialaclava. reaching the sea to the south of the St. Kilda Hill. South-east from Paddy's Swamp is the flat in the Catilfiehl Racecourse, and again soutli-east, another aiea of ditticult drain- age, to be refeii'ed to later. The trend of the hnvest ground of the Klwood Swamp is from south-east to noith-west. Tp stream the valley can be followed almost straight to its head north of Cheltenham. The south-west limit of the f>l.sternwick ("reek Avaters is a ridge from near the power house of the lirigiiton electric tram south-east in an almost straight line. It is close to the Point Xepean-road from North Brighton to Moor;iI)biii station; thence a little east of the road, which has turned a little more southerly. This may conveniently be called the Moorabl)in Ridge. The Elsternwiek Creek lies close north-east of tliis ridge, a small parallel vallfy intervening at North Biighton. The creek then receives practically nothing from the left ])ank. but on the right or north side it receives two im- ])ortant tributaries; one of these runs south from near the Caul- field Town Hall, and turns west to join the creek near Gardenvale station. The other flows south, near the Mordialloc railway, le- I'eiving much water from its east side, including that from the swamp south of Carnegie station. Here the 140 ft. contour almost sHirrounds a long narrow area stretching for a mile and a quarter south-east to north-we.st. The outlet is south-west to the Elsternwiek Creek tributaiy, but at a point a long way back from the north- west end of the elongated hollow. At its south-east end it merges in an ordinary valley from the south-east. A remarkable broken valley line lies north-east of tlie Elstern- wiek Creek. One portion of it runs through the entrance to the Brighton Cemetery, and extends south-east for some distance lower. This part and another north-west of it fall into one of the Elsternwiek Creek tributaries. On the same line further south- 'east, a pair of similar valleys falls into tlie next tributary, and a fifth section, reaching the Elsternwiek Cicek by another route, occurs further on, east of the Bentleigh station. It is either a valley broken up by three captures, or indicates a marked tendency to produce valleys alf)ng one line. 272 T. S. Hart: The head of the I'jlsternwiek Creek is in a hroad open valley north of Cheltenham. On each side of the valley the I'iO ft. con- tour runs in two nearly parallel lines from south-east to north- west, 20 to 30 chains apart. The 110 ft. contouis come in at the two ends of this flat, a mile and a half apart. Most of the flat drains to the Elsternwick Creek, but the south-east end falls to the south-east and the outlet is steeper than the other end. The Elsternwick Cieek and its tributaries nowhere cut down to the bed rock; prol)al)ly much of the main valley at least is in" less permeable beds low in the tertiary series. The average fall over 4^^ miles from 110 to 10 ft. above sea level is about 22 ft. to the mile. A north-westerly trend of the valleys is the rule throughout this area, but the two tributaries from the north bring nearly all the waters down to the south-west side of the system. The more im- portant of these ti-ibutaries receives nearly all its water by north- westerly valleys. The levels along the divides on the north-east and south-east of this system range from 190 to 150. The Moor- abbin ridge, however, only reaches 150 at its highest point, and the actual head of the Elsternwick Creek is below 120. The Br/(//ifo/i the sea on the second valley line. The third extends practically straight from the Kwami)s in Cheltenham Park to .Middle lirighton. The fourth heads a mile west of Cheltenham, but after running north-west to a point nortli of Hampton station, turns south-west into the fifth. On the line of the fourth lower down two other little valleys occur. This series is well seen on the Brighton rail- way, the first just south of (North) Brighton station; the second and third on each side of Middle Brighton. The fourth is here only represented by a very slight hollow. The railway follows tlie fifth from Brighton Beach to Hampton, and the sixth is seen inside the Beach-road lu-low Sandi-inghani. Coanlri/ Sont/i of Ydrra. 273 Aliuvf the apparent liead <>( tin- tit'tli valU-v east of SaiMlrin^-liani statioii-. there is on the same line a long valley Avith iiu nutlet, terminating in a lagnon cast <>\' the golf club house. A tlatti-ning of the grade of all these valleys mi iirs about the line of the IJluft"- rcail. and on the same line ocinis the flattest part of the Klstern- wii'lv Ci'eek (except its head and swamps at the mouth). The grades of the valleys are shown in the accompanying table in whieli the letter D indicates tliat the valley is here diverted south-west, and the letter B that it is blocked with no free outlet. On tlie sixth or Sandringham valley the 40 ft. contour is the last above the cliffs. I'jisli'rnwick Creek and liruihton Vallfi/s. Dififdnces in ClKiinx betiveen Sin'cess^ive Contours. l.fVfls E. Ck. 1 •J iiH..- r •! lowei Hi r •iylitoi 3 1 \'allevs. i ,T ujiix-r .' 1 loWl T 4o to '.iO - 35 - 32 - — - 47 - 29 - . — - It) - — SO to 20 - - 52 - 26 - -- - 12 - 29 - - -^ - 13 - — 20 to ](> - - 54 - 38. \ - — - 14 - 20 - — . _ . — - — 1 0 to sea - - 90 - 3 . — 3 - 3 - — . _ . — - — Avera«,'t' l(X)to20 10 ft. fall in 35 - 32 - — - 29 - 32 - 24 . _ . Hi - ~ Pall in feet per • mile - . 23 - 25 - — - ' ■> . 25 - 33i - -- - 5< » - — . The ridges between the valleys show a gradual descent with few irregularities. On a si'ction at right angles to the valley the south-west side is nearly always lower than the north-east. Taking the general level of the ridges the fall is on the whole west, not north-west. All the departures from regularity in these valleys are the few diversions to the south-west and the loss of giade, producing swamps. Xuniemus ill-drained or undiaine(l areas occur about the heads of the valleys near (Jheltenliam, and as far "West as close to the Red Bhifit, Sandringham. These are usually very closely related to, or actually part of, the valleys. Tlie high land at the head of the series reaches 170 at one point at Chelten- ham. The heads of tlie first vallev. and less distinctly the second 274 T. S. Hart : Jiud fourth, are continuous witli valleys on the opposite fall. The tertiary rocks aie never cut thiougli, but less permeable beds are probably often reached, and the waters of the permanent lagoons may be taken as rej^resenting the level of permanent saturation about 12U ft. above sea level near Cheltenham. Parish of Mordialloc and adjacent /ja/'/s of Moorahhin and Dandenong. At Mordialloc and Mentone, and east of Cheltenham, and thence north-east to near Clayton, the valleys fall to the south-east off the highland at the heads of the Brighton valleys and the Elsternwick Creek. They commonly show a very regular south-easterly direc- tion, but ultimately their Avaters reach a channel which runs south from near Claj'ton to the main drain east of Mordialloc. This is, however, for the most part the natural course of the waters. A valley starts on the South-road, a mile and a half east of Moorabbin station, and runs south-east through the Benevolent Asylum grounds. Another parallel to this starts near the Centre-road, east of Bentleigh, and runs south-east into Reedy Swamp. Another valley starts about a mile west of Clayton station near the Centre- road, and after running south-cast for a little distance turns south through Heatherton, becoming the main channel. The fall from 160 to 60 feet above sea level extends over two and a half miles, about 40 feet to the mile, and thus considerably steeper than the Brighton valleys. A south-easterly valley starts between Oakleigh and Clayton, and its waters are also turned south by an artificial channel into this main channel, Init a definite south-easteily trend of the valleys is seen to the east of this made drain. Ill-drained and swampy places arc common within this area. From Heatherton the old Dandenong-road continues south-easterly close to the 70 ft. contoui', touching GO in some of the valleys, l)ut never again i-eaching 80. Three shallow valleys with a southerly trend cross the road, but in the country between this road and the Gijipslaiid railway a south-easterly trend is often seen and just sf)Uth of the lailwav a definite south-ea.stcrly ridge marks the south-west limit of the Springvale valley. Near the main channel south of Heatherton, the contours begin to show the effect of recent alluviation as high as the 40 ft. level, ])ut in the neighbourhood of Mordialloc the Avell-defined south- easterly ridges and valleys can be seen as low as the 10 ft. contour. Country Soo.lh of Vnrra. 275 S /trill (J rale. — A vallev luiis in ;i south-eiisterly direction near I he (lippshuid railwjiy from a little beyond Clayton to about a mile before Dandenoug. It receives very little from the south; on ih^ south side of the railway is tlie ridge just referred to gradually its shows that the bed of the valley is not in (he purer and moi^- permeable sands. \ 1'lie iiortliwai'd pai't of tlie axis beyond Xotting Hill is indeed broken liy the outlet from (ilen Waverley, but this is obviously new, not an original feature. Country Sov.ih of Yurrn. 277 Tin- ('(xiaf l.nii . — OiiikumI Point (KlmI UluiY, St. Kildu). lit-s on the exti'iision of tlu- vh\\Hi soutli-wcst of the KlsteiMi wiclv Crock. The coast soon curves and runs neailv south, ci-ossing the JJrighton vallevs at a small an^de. The ]»rojectiii^ ])oints are due to the greater resistance of the lower heds of the tertiaries, and do not correspond in position to the ridges. The Elsterinvick Creek enters the sea through the Ehvood Swamp; there is a flattening of its gradient, Imt in all the Brighton vallevs the reverse occurs. There is, to put it otherwise, never I'oom for the fall to continue to the sea at the same rate as the fall from 30 to 20 above sea level. All of them must lie regarded as slightly encroached upon by the sea. From Brighton lieach the coast runs in general nearly south- east, curving out to the west at points due to the greater resistance of the l)rown rocks. The attack of the sea is evidently more powi-r- ful here than at Jiiighton, as is seen also in the nature of tlie beach sand. At Brighton also, where the coast crosses a ridga, there is a steep rise, usually back in the tea tree scrub. At Sand- ringhani the cliffs rise higher and direct fi'om the beach. Towards Kickett's Point there again seems to be a less rapid advance, l)ui here the outcrop of the resistant roeks is much more continuous. From Ehvood to this point most of the best dip observations gi'^'fc a north-westerly strike in the brown rocks with low dips 10 degj-c^s or less. Joints are often pronunent, and in these north-westerl, strike is most conunon, though others are also frequent. Near Beaumaris the coast turns north-east for a mile with cou- tiiuKuis cliffs to 70 feet high forming one side of Beaumaris Bav. At the head of the bay is seen a comparatively steep dip in the tertiaries 25 j)owei' t(i widen thi; valley oi' to cul out a channel of a oraiich gully nu llu- line of a spring. A steeper slopi- caji be seen sometimes behind a spring at the foot of a hill. This power of widening has already been referred to, and is no doubt of general application. It will evidently give increased it(,)Wer to tlie stream whiili liist reaches the less ))erineable beds, that is, other things l)eing equal, to the stream on or near the anticline. A somewhat similar effect could be produced by any stream reaching the permanent water level, but in this district the two causes are i)ri)bably practically coincident. CotKiUry Sod.l/i of Yarra. 27'J The valli-ys alxnit ( 'lieltcnhaiii liavc vrr-v little power to re-open their chaiiiiels if liloekeJ by any eau8e. Fur example the swamp east of the Culf Club House at Sandringham lies at the north- west end of a Itollow below the 100 ft. contour, about 50 chains long and of an area of 50 acres. The whole catchment up stream from the swamp is only about 300 acres. If a barrier below the swamp were only to reach 102 ft. above sea level, it would require, neglecting the depth below the 100 ft. contour, tW'O feet of Avater over more than 50 acres to surmount the barrier, or over 4 inches of rain delivered into the hollow so rapidly that absorption could be neglected. A very low barrier is evidently insurmountable in such a case. The valley wotdd be re-opened by the stream cutting back from the lower side of the barrier, and as the direct catch- ment here is very small, the chief agent would be the oozing of water along the old Ijed. If the old bed had reached impermeable material this woidd be much more powerful. A stream which has reached less jjermeable beds is therefore much more able to keep its channel open. Wind action or tlie wash from adjacent slopes might make a barrier, especially after a portion of the heath had been swept by tire and the sand left unprotected. It may l3e noticed that while two and a half feet to the chain can be regarded as moderately steep in the tertiaries, some hillsides reach as much as 10 feet to the chain, and might rapidly supply much material from these relatively unstable slopes. As has been noticed, strikes of l)eds and of joints are often north-westerly in the tertiaries. Any actual inequalities of surface produced l)y slight folding before emergence of these beds Avould be liable to be largly or wholly levelled by marine action during the elevation. Relatively Aveak parts might even be excavated, and these weaker parts would probably be nearer anticlines. Hence there is no probability of the production of anticlinal ridges, but there is a strong probability of lines of easy excavation parallel to the strike of the folds. The north-Avest and south-east valleys there- fore, besides being near the direction of steepest slope from the axis, are probably structurally in a strong position. The relation of the unusual fold at Beaumaris to the riieltenliam axis is already noticed. Explanation of Surface Features. The Brighton valleys from their simplicity and regularity are no doubt the H better to consider this fault line as replaced by a wider easterly tilt from the Notting Hill axis. Then the course of the Dandenong Creek at Wheelci's Hill is in accordance with the direction of tilt till it finds its way tlirough the hills. The Springvale valley also lies within tlie tilted area and further south the tilt extends from Beaumaris across the ('armim Swamp. The slope on which the formation of .swampy land appeals at the lower parts of the creeks is in close agreement in the three examples in this district. The Dandenong Creek begins to l)e s\va,m]»y below the 50 ft. contour, falling from 50 to 40 in 50 arallel to which is a subordinate axis through East Camberwell. An easterly tilt from the latter and other late warping movements are probable. iJut primarily the Nottiiig llill-Gheltenliam axis divided the noith-western from the south- eastern streams. The south-westerly tributaries, though important, in many cases seem to be definitely blocked at certain lines, especially that on the south-west sides of Gardiner's Greek and the Springvale \ alley. This feature, combined with tlie extreme re- gularity of the Brighton system, and the structures of the rocks so fai' as seen, favours the idea that the streams are guided or St lengthened on theii' south-east or north-west courses by lines of wt-akness or by structural featmes. and that there may even have been original reversals of .slojte against the south-west fall in some cases. .\11 the valleys in their earliei- stages weie in the weak and ab.soij)tive tertiary sandy beds. On reaching impermeable beds siu^h a valley would leceive additions from springs, and weak jdaces would be produced on the lines of springs which might It-suit in a great power of widening the valley or cutting a tributary valley. (Tosed hollows are of fiequcnt occurrence, and are easily pro- duceiit, University of Melbounio). (Willi Plates XVni.-XXlV.). [Rejul 12th Decomb.-r, 1912]. A. Introduction. li. Adult Structure. i. External A.spect. ii. Detailed Description. C Euihryonic Development, iii. Cleueral Survey. iv. Developing Farts at Different Stashes. V. Post-embryonic < 'hnnij^es. D. liiterature. E. Descrijjtion of Plates and llefereuce Letters. Introduction. The material for this investigation consisted of a large number of syringes of the adult connnon fowl, and of sets of longitudinal and ti'ansverse serial .sections of cliick unil)ry()s, in all stages, from nine days' incul)ation until the time of hati-liing, examined in icgard i(( llic structui'e and developnii'iit of the syrinx; and lastly, end)ryos at several stages were dissected, especialh' in regard to the relation of the respii-atory air sacs to the syrinx. • The work was carried on in the JJiological Laboratory of the Melboujne University, at the suggestion, and under the dirtntion, «)f Pr(d'essor Baldwin Spencer, to whom I owe many thanks. Thanks aie also due to Dr. T. S. Hall and Dr. Sweet, for assistance and advice, and to .\fr. .T. Brake, and all others who have helped in various wavs. • Syrinx of Foivl. 287 Adult Structure. As far iis the adult structure is (■(•nccniecl, tlie description wliich folloAvs ct>rroborates the work of, and gives details additional to those given by Wunderlich (1884, p. 79), who has figured the adult syrinx, and Garrod (1879, p. ."377), who, in discussing the confor- mation of the thoracic extreniity of the trachea in birds, deals briefly with the condition in (rail us hankiva. 1 . — Ej:tt ni al Aspect . The syrinx or vocal organ of the bird (known previously to Huxley as the lower larynx), is constituted by the modified tracheo- bronchial junction, and in the common fowl both trachea and bronchi are involved in its formation. Each side of the lowej" tracheal exti-emity presents a membraneous appearance. The ven- tral surface is mainly occupied by a triangular-shaped plate, more or less cartilaginous in structure; and a similar but smaller plate is present on the dorsal stirface. The chamber of the syrinx or "tympanum." is seen to be compressed from side to side, but there is a corresponding increase of depth dorso-ventrally. The outer walls of the bronchi are strengthened by semi-rings of cartilage, while the inner Avails are mem))i-aneous, and bands of fibrous tissue termed the bronchidesmus, pass from one bronchus to the other, so as to enclose beneath the bronchial junction a large air space. The body of the ventral triangular plate is seen to be continuous with that of the dorsal surface, through the medium of a semi-carti aginous or calcareous rod, termed the pessulus. The basal angles of the plates articulate with the extremities of the first bronchial semi-rings, and in close relation to each side of the plates are the lower tracheal rings, which are much modified, lying embedded in the thin membraneous walls of the trachea. As to the syrinfreal muscles, they do not appear to be directly and intimately associated with the syringeal membranes, as they are in many other birds. Lastly, the whole of this syring(>al chamber, or "tympanum," is in close relation to respiratory air sacs, whicli extend, not only up between the two bronchi, lint also around each surface of the svrinx, so that the whole organ is completely enveloped. II. — Def ailed strurturc of the syrinx. The syrinx consists of the following structures : — 1. Supporting framewoi-k, 2. Syringeal mrmbranes, .3. Syringeal muscles. 4. Svrintrcal air sacs. 288 A. 0. V. Tymms: 1. Supporting; framework. In place of the simple cartilaginous tracheal rings and bronchial semi-rings, there has been much modification at the tracheo-bron- cliial junction, in the formation of the sujiporting framework of the syrinx, so that we may distinguish the following elements : — (a) The rod-like portion of the pessulus. (b) Dorsal triangular plate of the pessulus, (c) V'^entral triangulai- plate of the pessulus, (d) Last six tracheal rings, (e) First two bronchial semi-rings. (a) Pessulus. — The pessulus is situated just below the junctiou of the bronchi, and it passes from the ventral to the dorsal surface of the tracheal extremity. It is rod-like in shape, and in the adult partly osseous in structure. Ventrally, it expands into the body of a large median triangular plate, with a cranially-directed apex. Dorsally, it is continued into a similar but smaller plate, the whole structure (rod and two plates) lesembling somewhat a double- headed bolt. Along the cranial margin of the pessulus thei'e is a thin fold of raucous membrane, termed the mendjrana semilunaris. (b) Ventral Triangular Plate. — As already stated, this is situ- ated on the ventral surface of the tracheal extremity. Its apex extends as far cranially as to lie just liehind the fouith last tracheal ring. Its basal angles articulate with the exti-emities of the first bronihial semi-rings. Its lateral edges are in close i-elation to the last tliree tracheal rings, fusion taking place usually only with the last ring. Its body is partly calcareous, and may be even osseouis in structure. (c) Dorsal triangular plate. — It is situated on the dorsal surfa/e of the tracheal extremity, and its a))ex extends cranially between th-.; doi'sal ends of the last two tracheal rings, but does not (piite leach the ante-penultimate ring. The dorsal ends of thr first broni'hial semi-i-ings articulate with the lateral angles of the plate, and with its sides the ends of the last two tracheal rings are in close relation, but do not fu.se. (d) Last six tracheal rings. — (i.) Last tiacheal ring. Of the six rings, this is the most developed. It is not flattened, but rounded. Ventrally, it widens considt rnbly, and fuses with the triangular plate, but dorsally. it ]>res.ses closely against the ]>late, without fusing. (ii.) Penultimate ring. This second-last ring is band-like, .•iiid 7 ather wider than the others. Its ventral extiemitit-s pi-ess closely against the sides of the ventral triangular ]date. while doisally the ends lie on each side of the dorsal plate. Sjjrin.r of Foui. 289 (iii.) Ante-penultiniatu lin^-. Tliu third-last ring is more re- (hued. It is made up ut' two straight, hiteral, baud-like rudiuicnts. its ventral ends do uul fuse, but lie on each side, agaiust the apex of the ventral triaugvdar plate, its dorsal ends taper considerably, and come to lie close to each other, without fusing, and just beyond die apex of the dorsal triangular plate. (iv.) Fourth-last ring. This ring is so reduced and incomplete as to be represented by a mere thread-like band, situated a little beyond the apex of the ventral triangular plate. The left side is thinner, and does not go much furtlier than half-way towards the dorsal surface, but generally fuses with the third-last ring. The right side is wider, and nearly reaches to the dorsal surface. Ven- trally, the ends come very close together. (v.) Fifth-last ring. This ring differs from a normal ring in l)eing slightly incomplete dorsally, where its ends are turned down- wards, towards the apex of the triangular plate. It is flattened, and purely cartilaginous in structure. (vi.) Sixth-last ring. This is the only complete ring of the syrinx, and differs from those above the rings of the syrinx in not being osseous in structure. (e) Bronchial semi-rings. — The first two semi-rings only are uspecially modified in connection with the syi'inx. The first is characterised by its large size, thickness and marked cui-vature, the concavity being directed cranially. It is not flattened, but round, and it articulates very intimately with the basal angles .A Ixitli ventral and dorsal triangular plates. The second semi-ring has its ventral ends fused with those of the first, but dorsally they are widely separated. 2. Syringeal mendnanes. — As already stated, the syrinx has a general membraneous appearance, and on closer examination several distinct membranes mav be recognised. As a whole, they are characterised by being set or stretched between an air space on either side. As will be seen, the wall of each mend)rane has histo- logically three layers. The following membranes may be dis- tinguished : — (a) Membrauae exteniae. (b) Membranae iiittanae, (c) Membranae traclieales. (d) Mend)rana semilunaris, (e) Broncliidesmu.s. (a) Membrauae externae. — These membranes are situated one on Ciach side of the tracheal lower extremity. They are very thin 14 290 A. 0. V. Ti/nims: and traiishifent, and occupy the region between the hist tracheal ring and the tirst bronchial semi-ring. External to it is a resjjira- tory air sac, internal to it is the air space of the trachea, and so the meniln'ane is stretclied between two air chambers. The wall of the membrane is three-layered. The middle layer is of meso- blastic origin, the other two being of hypoblastic origin. (b) Membranae internae. — These membranes are the thin inner walls of the bronchi, and thus occupy the region between the fx*ee ends of the bronchial semi-rings. Above they are limited V)y the pessulus, and below, to some extent, by the bronchidesmus. The space between the two membranes is occupied by the subpessular air space. As before, the membrane has three layers, the innermost being bronchial epithelium, much folded in one part, the middle layer of mesoblastic origin, and the outer the epithelium of the air sac. (c) Bronchidesmus. — This is a fil)r()us band, passing between the two membranae internae. It is set somewhat obliquely, and is formed by the apposition of the unsymmetrical right and left interbronchial respiratory air sacs. (d) Membranae tracheales. — These are the membraneous lateral walls of the tracheal extremity. Embedded in them lie the last five tracheal rings, which are so flattened and reduced that, notwith- standing this cartilaginous framework, the walls are thin, trans- lucent and membraneous. They are separated caudally from the membranae externae by the last tracheal ring. Like the.se latter membranes, they are composed of three layers, and set between t]\3 air in the trachea and that in the respiratory air sacs. (e) Membrana semilunaris. — This is a thin fold of mucous mem- brane, overlying and projecting from the cranial border of the pessulus. It consists histologically of an inner core of mesoblastic origin, overlaid on each side by the ti-acheal epithelium. It is only slightly marked in the adult, but is of considerable size at one stage in the embryo. 3. Muscles. — In addition to the sterno-tracheales and tracheo- clavicular muscles, Avhich have relation })oth to the lower and upper parts of the trachea, there are also present a dorsal and a ventral pair of muscles. These latter two pairs correspond to the true syringeal muscles of other lurds. in which, however, they may be of considerable size, and more intimately associated witli the syrinx. These true syringeal muscles are said to be derived from the sterno- hyoid group of muscles, and pass down the trachea to the syrinx (see Svrinx Dictionary of Birds, by Nowton), but in the common Syrliur ot Fold. 291 fowl tliey i-eai-h oiilv as far as tlio (>leventh or twelfth last tracheal ring, while the Mvrinx does not begin until the sixth-last ring. Thus these muscles of the coninion fowl have no very close relation to the juenibranes of the syrinx. 4. Respiratory Air Sacs. — The air sacs completely surround the .syrinx. Tliis envelope is not a sini})le one, but a composite one, in wliic'h tlie several air sacs air in intimate contact with each other, and with the syringeal membranes. In development, they are seen to l)e derived fi-om the third entobronchus of the lung. The third ontobrouchus teiiiiinates in a stem, which subdivides into two main .stems, of which one, opening into the interclavicular sac, goes to form the syringeal air sacs, while the other opens out into the anterior thoracic air sac. As the stem of the interclavii'idar or .syringeal air sacs ascends from the third entobronchus of the lung to the interbronchial region, it expands into several air sacs, which take uj) different positions in relation to the parts of tlie syrinx. A large ventral sac passes over the ventro-cranial region of the bronchus md triangular plate, and comes to occupy the ventro- lateral rc'giou of the svi'inx. A large sac from the right side extends up so far as to lie close beneath the pessulus, the sub-pessnlar air sac. On each side it is in relation to the mendjranac internae. Another large sac passes dorsally from between the bronchi, and then opens out into dorso-lateral sacs. The most cranial one is large, and comes to occupy the dorso-lateral region of the syrinx. Other lu-anches pass off, and become related to structures apart from the syrinx, one main branch and several smaller ones retur]i- ing to the lung tissue, and so constituting the recuri'ent branches of the interclavicular sac. The recent research of Juillet, 1012 (Chap. IV.), showing that the direct stem of the interclavicular sac arises in conmion with the stem of the anterior thoracic sac, is liete confirmed. What was formerly thought to be the direct bronchial Ktem. he has shown to be the indirect recurrent interclavicular branch. Thus the stem of the interclavicular sac, besides giving off its recurrent branches, expands into the interclavicular region, •where it gives rise to the syringeal air sacs. Embryonic Development. Passing now to the embryonic condition of the organ, a general survey of its development will first be given, followed by a detailed description of the gradual appearance, in time, of the several yiarts ing the cranial border of the pessulus. •It increases considerably in size, but in the adult it has become relatively small. Along with the devel(»pment of this fold, the inner- walls of the bronchi begin to be clearly separated from eae!i othei- by a s[)aco, so as to give rise to the membranae internae. 'I'liis Syrinx of Foai. 293 is jHcoiiiplislud liv tliu upjiTowtli of the iiitLTtlaviiular sac^i from the luii<^- into the iiiti'rl)roTi(.'lLial region. The steJii of thi' iiilcr- chivifular sac iiiid tliat of tlie anterior thoracic air sacs, are tlie hifurcatioiis of the main stem of tlio third entobronchus of the huiu\ Tiie iiiterl)ronchial sacs are not symmetrical, the huge sul)- pessuhir sac bein^' derived from the right side, and in contact Avith botii membranae internae. As a result, there is a three-layered band of tissue gradually developed, separatin'j: tlie air-spaces of the right and left sides, and tending to connect obli(iuely the two membranes. This band of tissue ])Ccomes the bronchidesmus, which, in the adult, is tough and fibrous. The membranae traclieales, oi' the two lateral walls of the upper part of the syrinx, have the last five or six ti-acheal rings embedded in their tissue, and even up to the time of hatching, tliese walls remain tliiek. After hatching, howevei-, when the eml)edded rings rapidly l)egin to flatten, the Avails be- come distinctly meml)raneous and tough, and finally constitute in the adult tlu' nit^iihranae tracheales. It lias already been mentioned wliat an intimate relationship comes to exist between the membranae internae and interl)ioncliial ail' sacs. A similar relationshi]i comes al)out in reganl to the mem- branae externae and tracheales. The stem of the interclavicular sac not only gives off the interbronchial and subpessular sacs, but also gives oft' lartion of various stages will how be given, siiowing the development of the several parts, in order of time. 294 .1. 0. V. Tywms: IV. — hccdop'uuj Elements at Different Stages. 1. Nine days' incubation. — After nine daA-s of incubation, a concentration begins to take place in the enveloping dense niesoblasi. and this is the first indication of what will be the first bronchial seiiii-i-ing. 2. Ten days. — Early in the stage there has also appeared the first indication of the last tracheal ring, but it is not so definitely marked as the first bronchial has now become. Just between the uniting bronchi, the mesoblast tissue is becoming very concentrated, and from this the pessulus will develop later. Towards the close of the tenth day, the penultimate ring and the seconnchial have ])egun to fuse. (PI. XIX., fig. 5.^ Dorsally, the ends of the ante-penidtimate have now extended to the dorsal dense mesoblast. 5. Fourteen days. — As before, there is increased size and dift'er- entiation in the supporting framework, Avliile other developments have appeared. On each side of the dorsal triangular plate lie the free ends of the last tracheal, penultimate and first bronchial. Just beyond the apex of the plate, there are the ends of the ante- penultimate, which are noAv clearly defined and jjressed against each other and the apex of the i)late. yet without fusing. The dorsal ends of the fifth-last similarly come close togethei- in the middle line, without fusing, but those of the sixth last do fuse, so tliat this ling becomes the only complete one associated with the syrinx. The fourth-last is still small, and now ])asses further dorsal than before. Ventrally, no marked change has resulted. In addition to these changt!S in the supporting framework, two other t'hanges are aj)])arent. Firstly, the medial hypoblastic walls of the bronchi are thrown into folds; and, secondly, the syringeal air sacs can now be seen pushing their way up from the third fiitobronchus of the lung tow^ards the interbronchial tissue. (PI. XVII., fig. I; and PI. XXIV., figs. 19 and 24.^ As yet the membranae internae are not formed. The stem of the interclavicular or syringeal air sacs has, however, divided into its three main diverticula — namely, the large ventral sac. the dorsal sac, and the smaller eraniallv-directed one, which, from the right side, will become the sub-pessular sac. (PI. XXIV.. fig. 19.) 'i'his latter change subseipiently becomes of great importance in its bearing on the whole svrinx. and this fact lieeonies more and more evident in following stages. Syriu.r of FoxvL 297 G. Fifteen days. — Tiiis .stafj^e of (levelitpinent is of coiisiderahle importanee, since, by this time, tiu- foundation of all the main stiuetures of the syrinx has been laid. (PI. XVIII., fig. 27.) The supporting framework, with all its elements, is dehnitely formed, all the syringeal membranes are to some extent indicated, the syringeal muscles are developing, and lastly, the syringeal air sacs begin to show intimate relationship with the syrinx as a whole. As to the general enveloping mesoblastic tissue, it is now losing its dense character, and gradualh' changing into a reticular meshwork, but the tissue closely around the lower tracheal rings is still dense, and is made up of several layers of jflattened cells. Supporting framework. — A few changes have taken place. Pre- vious to this stage, the last four tracheal rings have been fused with the sides and apex of the ventral triangular plate; but now, at this stage, there is the beginning of a change, which later results in the separation of all but the last ring from the plate. (Pis. XIX., XX., figs. 4 and 8.) This goes on gradually, and reaches completion some time after the hatched condition. There is variation in the actual time of separation, l)ut at the end of the fifteenth day the apex of the ven- tral plate is no longer intimately fused with the fourth-last ring. Again, the ends of the third-last now articulate with each side of the apex, so that only the last two rings remain fused with the sides of the plate. (PI. XIX., fig. 6.) It may also be noticed that the ventral ends of the first two bronchial semi-rings are now- more definitely fused. The smallei' size of the dorsal triangular plate, as compared with the ventral one, is now seen. Also, it is not directly fused with any of the tracheo-bronchial rings. As before, its lateral angles, articulate with the first bronchial semi-ring, its sides with the ends of the last two tracheal rings, and its apex articulates with the ante-pen- ultimate ring, whose ends are now fusing. On the left side, the fourth-last ring fuses at its extremity with the fifth-last ring, just before the extremities come close together in the mid-line. Syringeal membranes. (PI. XV'llI., fig. 2.) — At tlie close of the fifteenth day, the raembrana semilunaris first begins to appear, capping the more ventral region of the pessular rod. It is wedge- shaped, and simply consists of a mesoblastic interior, covered by the liypoblastic epithelium. The unattached edge proj^ects slightly into the lumen of the tracheal extremity. The membranae externae be- 298 A. (J. V. Tijmms: tween the tracheal I'injrs and the bronchial semi-rings are now larger in size, and somewhat deflected into the lumen of the syrinx. Their walls are still thick and dense in structure. The membranae internae are now developing from the inner walls of the bronchi, between the free end of the bronchial semi- rings. At first, the mesoblastic tissue between the bronchi is one continuous sheet, but at the close of the fifteenth day the inter- bronchial air sacs have so extended upwards as to reach almost to the pessulus; hence the mesoblastic tissue is divided into two layers. In this way the membranae internae first begin to form. Their walls have three layers, and the mesoblastic layer is as yet of considerable thickness. As yet the right air sac has not completed the splitting of the mesoblast in the dorsal region, where the two membranes have not become differentiated. The hypoblastic epithelium of the membranes is thickened, and contains spaces, so that it tends to become folded. With the pushing up of the two interbronchial air sacs, the bronchidesmus becomes formed at this stage. It consists of the two thin walls of the right and left air sacs, with a strand of mesoblastic tissue between them, and continuous with the meso- blastic walls of the membranae internae. The intimate association of these three layers constitutes the bronchidesmus, and, owing to the greater and asymmetrical development of the right sac, the mem- brane is directed obliquely between the bronchi. The membranae tracheales do npt become membraneous in struc- ture until after hatching, and hence at this stage their walls are thick, and the tracheal rings embedded in them have only just begun to flatten. There is also to be seen a denser tissue, connecting the rings. Muscles of the syrinx (PI. XVIII., fig. 2.)— By this stage, the tjterno-tracheales and tracheo-cjavieulai- muscles are well marked, lying close to the ventral and lateial sides of the trachea. The trachoo-clavicular leave the lattei- walls of tliu tracli^ea just above the region of the eleventh and twelfth-last tracheal rings. Between these Tnuecles and the trachea the syriiigt'al muscles are developing and extending down a short distance towards tlu' syiinx. They do not reach the syrinx, and, as yet, they are not clcaily differentiated into a dftrsal and a ventral pair. Syring^al air sacs. — The syringeal air sacs have now become mucii expanded, both between the bronchi, and also to the lateral side of the syrinx. On the right side th<' suV)-pessular air sac has been given off. and thus the membranae internae are now j Futti. 299 ill tlic more iloisal ic^^ion. On the left si/()ii ic (Jcvrlopiiiciit . The syrinx, being peculiar to birds as a vocal organ, shows con- siderable development in the post -embryonic period. This accounts for some marked differences between the adult and the hatched con- dition. Since all the morphological structures of the syrinx have been laid down during the embryonic period, the development in the post- embryonic period is chiefly histological, but to such a degree that 302 A. 0. V. Tyinncs: this traclicti-biunchiul juiictiijii is converted into a truly mem- braneous chamber, whose lateral walls are made up of the mem- branae tracheales and externac. The membranae tracheales, between the time of hatching and the adult condition, undergo much change. The last five tracheal rings embedded in it flatten into extremely thin band-like vestiges, while the tissue between them Ijecomes thin and tough, so that the whole constitutes the stout membi anae tracheales of the adult. The membranae externae become the most distinctive membranes, thin, yet strong, oval in outline, and stretched between the last tracheal ring and the well-marked first ])ronchial semi- ring. A similar change occurs in the membranae internae. The bron- chidemus gradually assumes the fibrous condition of the adult. As regai'ds the supporting framework, tlie changes in the last five tracheal rings have been noted. The first two bronchial semi-rings become the most developed of all the syringeal I'ings, and they are curved so that their concavitv looks ci'anially, and opposes that of the last tracheal ring. The dorsal and ventral plates considerably thicken and Ijecome very prominent, and only the ventral ends of the last tracheal ling fuse with it. Their l)asal angles, however, articidatc with the other tracheal rings and first bronchial semi- rings. In the older fowls, especiallv in the Tiiale liird, the pessulus be- comes calcified, and may become partially ossified, not only along the whole extent of the rod, but also in thi' lentral portions of the ilorsal and ventral triangular plates. In addition to this, there is a small centre of ossification in the ventral ends of the first bron- <-hial semi-ring, just before it articulates with the basal angles of the ventral triangular plate. Ossification also takes ])lace in many of the tracheal rings above the syrinx. The syringeal muscles change very little. There are the dorsal and ventral pairs, and they do not reach the syrinx. Finally, with the change in the external walls of the syrinx, the characteristic shape of the adidt syrinx is assumed — namely, the lateral walls have approached one another, o that the lateral width of the syrinx is less than tliat of the trachea, but the dorso-ventral depth is somewhat gi(>ater. As before, the whole svrinx is enveloped by the syringeal air sacs or diverticula of the interclaviiular air sacs. Syrinx uj Foai. 303 Summary. In contlusion, the following points may be given as distinctive features of the svrinx of the common fowl :— 1. The formation of a syringeal chamber or " tympanum," with exttjnsive membraneous Avails. 2. The presence of membraneous internal bronchial walls, with the connectinjr bronchidesmus. 3. The presence of the bolt-like pessulus, with its ventral and dorsal triangular plates. 4. The very vestigial condition of the last five tracheal rings, the greater development of the first two bronchial semi-rings, and tlie close relationship of all these elements with the ventral and dorsal plates. 5. The very noticeable absence of nmscles in direct or intimate association Avith the syringeal membranes. 6. The complex and intimate relationsliip of respiratory air sacs to the syrinx as a whole. Literature. Brunelli, G. — Riduz d. laringe sup e. svil d. siringe, etc. Gior- nale ornitol. Ital. Siena, 1904. (Not available to me for con- sultation.) Garrod, A. 0. H. — " On the conformation of the thoracic ex- tremity of the trachea in the class Aves.'' Pt. I., Gallinae, P.Z.S., 1879, pp. 354-380. Hacker, V. — Ueber den unteren Kehlkopf der Singvogel. Anat. Anz., 189S. pp., 521-532. Gesang d. Viigel, Jena, 1900. Juillet, A. — Recherches Anatomiques, Embryologiques. Histolo- giques. et Comparatives sur le Poumon des Oiseaux. Proceedings of Experimental and General Zoology, Vol. 49, Xo. 3, Chap. IV., Jan., 1912. Wunderlich. L. — Beitrage zur vergleichenden Anatomic und Entwickelungsgeschichte des unteren Kehlkopfes der Vogel. Nova Acta Acad. Caes. Leop. Carol. CtMinanicae, Bd. XLVIll.. 1884. DESCRIPTION OF PLATES XVIII-XXIV. Figs. 1-3. — Median frontal or longitudinal horizontal sections through the tracheo-broncliial junction of the chick embryo at three stages, showing cliiefly the elements of the cartil- aginous framework, the develupinir membranes and the air sacs in relation to the syrinx. 304 A. 0. V. T>jmms: Fig. 1. — Stage of 13-14 days' incubation. Fig. 2. — Stage of 15 days' incubation; interbioncliial air sacs ui position, lateral sacs appearing. Fig. o. — Stage of hatched condition; all the syringeal air sacs in position, and the Avhole structure rapidly approaching the adult condition. Figs. 4 to JO. — Frontal sections through the ventral and dorsal tri- angular plates of the pessulus at different stages, showing their relation to the tracheal rings, and the first bronchial semi-ring. Fig. 4. — Stage of 11-12 days' incubation, ventral triangular plate appearing, along with the four last tracheal rings, and first bronchial semi-ring. Fig. 5. — Stage of 13-14 days' incubation, ventral plate now well formed, with the four last rings fused to it. First bronchial semi-ring articulates, but is not fusing with the plate. Fig. 6. — Stage of 15 days' incubation. The ventral ends of the third-last tracheal ring are separated from the ventral plate. The second bronchial semi-ring is fused ventrally with the first bronchial semi-ring. Fig. 7. — Stage of 16 days' incubation. The right ventral ends of the second-last tracheal ring are now separated from the plate, as well as the ventral ends of the third. Fig. 8. — Stage of the hatched condition. The left ventral end of the third-last ring is separated from the plate, so that only the last tracheal ring has its ventral ends fused to the ven- tral plate. Fig. I). — Stage of 13-14 da^^s. Dorsal triangular plate appearing. Fig. 10. — Stage of 15 days. Dorsal plate well formed, Avith the various tracheal rings and first bronchial semi-ring articu- lating, but not fusintr, with it. Figs. 11-iG. — Stage of 16 days' incubation. Frontal, or longitudi- nal horizontal sections, through the region of the tracheo- bronchial junction, to show the arrangement and origin of the syringeal air sacs, derived from the interclavicular sac. Fig. 11. — The interclavicular sac is seen passing up from its com- mon stem of origin with the anterior thoraiic air sac into the interbronchial region, and opening ventrally at the cranial end of the bronchus, into the huge vciitro-latt'ral sac, situated behind the tiiangular plate, ami latcial to the lowci' tracheal iinry, University of MellKHirne). [\ieni- instance, such factors as mechanical agitation, growth of organisms, exposure to higher or lower tem])eratures for a considei'able period (all of which may be included uiidei- the term " pi-evious history of the cream "), certainly have their effect uijon the viscosity, but tliese can hardly be independently investi- gated, and hence tlieir individual contril)ution to the general effect •cannot readily l>e calculated. Again, the size of the fat globule may be of impoitance, or, since each globule may be encased in a layer of protidn. the number of fat globules in a given volume of cream of known fat content may liave an appreciable effect in -determining the viscosity. The nature of tiie ])idtein niay vary, as regard its physical (;on- •dition, ill creams fi'om different sources, hut it would be difficult to obtain an experimental evaluation of the viscosity effect (d' tliis factor, owing to tiie impossil>ility of ascertaining whether the various samples of cream iindei- observation were directly com])ar- able in other respects. Hence in the following jiajK-r the vaiiations in viscosity due to acidity, fat content ami temperature changes are alone taken into consideration. .]<■/(// fi/ of Grrnm (is Afffcttng Viscositj/ {Critical Acidity). — This is assuredly the most potent of the factors generally recognised as influencing viscosity. A fresh cream, of fat content as great as 40 jier cent., will be com])aratively li(piid, and on this account •ordinary commercial pasteurised cream .seldom ajipears sufficiently rich to the average purcha.ser. 16a 308 F'lxiitcet: 7v.il/. Ihi ma r< sij : On the otJief liuiid, a cifaiu of k^ss fat cuiitont may, if acid, l)e- apparently rich, and How with difficulty. In order to study the effect on viscosity of rise in acidity uiicom- pli(;ated liv other disturbing factors, a (|uantity of cream, oi)tained by sei^aration from fresh milk, was gradually soured artificially, and its conse(}U(Uit increase in viscosity at a constant tcniperature- experimentally determined. In the majority of instances, the cream employed was obtained by immediately machine-separating milk fresh from one i^ajticular cow (new milk). Several experiments, liowever, were niade with cream separated from milk as ordinarily supplied to the consumer in the city. These latter experiments are duly noted in the tables as having been made on commercial mill\. The means employed to acidify the cream were as follow : — (1) The addition to the sample of cream of minute quantities of pure lactic acid. (2) The introduction of a small amount of a pure lactic culture to the cream, which was stdjsoquently maintained for a prolonged period at a temperature of ,'52 deg. C, readings of its viscosity being taken at short intervals. The first method presents consider- able difficulty, as local clotting is apt to occur upon the additicui of the pure acid. Addition of dilute^ acid was attempted, but was abandoned owing to the diluting effect, with the consj(juent hydrolysis of the calcium cascinogenate of the cream. Ultimately the following procedure was adopted :— A given (plant ity of cream, of ]ircviously determined fat content, was i-apiiliy stiri'cd with a glass rod just moistened with pure lactic acid. TIk; additicuis thus rlTecti-d were necessarily somrwliat hap- hazard, and iicnci' wvw subscipicnl ly estimated l)y titration of a sample of the acidilied cream with X/I(l alkali, using pheiiolph- tlialein as indicator. The viscosity detenninations were madi' with an Ostwald viscosi- inctcr, surroumled l)y a wati'r-jacl\ct kt_'i)i at a temperature of 25 deg. ('. throughout the experiment, this temperature being the lowist that coiihl be maintained appro\iniately constant in the lalioiatoiy during the smnmer. Preliminary experiments soon showed tiiat. whilst ii]i to a (■ertain point gra(hiai small additi(ms of acid itroduce very slight increases- in tJK' viscosity, Iher.' is an acid ily-vahu', at which the viscosity of the ci"eani. as measured by tiie tinn" iiilerval rc(piired for tlie l)idb of the viscosinieter to enijity, lajiidly lises. This aiidity is approxinudely e(|uivalent to that at wliieh cream may be considered rii>e ft)r chui"ning. Tlir Vi! ill cc. of ,. . , Time nf flow . N l'";it coiitfiit. KxpcTnnei.t. (s^.-o.-ls) NaOll,„l.er 100 cc. (,h..- cent.) of civaiii sernni. A - L'40 - lO.f) - 4l> :345 .■)4.9 - — 108") - o6.sr. - — B - 170 lit. 07 - .",9 187 - 45.0 - — 200 - r)i.r. 2-jr) - .-)4.! - — 3G0 - 57.2 c - 10." - 15.G - r,r. 108 - 4:5.7") - — 13G - r)(i.2.") - _ 560 - 57.8 - — 720 - 68.75 - — I) - 57.5 . 17.53 - 23 67 - 50.65 - — 105 - 54.54 - — 155 - 55.84 - — 285 - 61 - — 345 - 63.6 - — 310 Fi •(III CCS K. M. J) It III III 'es(j : .. u i 1 _ .LU^-^ U- ^ tT ^^ _ . X ± ■ - - - IT ; 1 I __L i ' '""" " ' 1 ' ' 1 ! 1 1 /T' —jz :__±i___: jL : ^ -4^- -fiiL ^--l-i-i- -u"x_i-J iE -H-+4--- ' 1 i ' - -^ -^1- ■ : J T^ / in t 1 it it >it / -- T T 4- -^-^ _t L -i_i- J 1 1 1 ,» -t ' r^' 4,' '^'_ :: :: :: n 1 I -J ~_\ 1/ ' J ii j? .. J..........^==.^±i-'-— 5-0 60 3 1 H ■ 1 in I ! r : I \ . t ,' y :3 (3 _j_ r: " j" ±i" ::':_." ^. " "J' ^ r- ■ • - - ■ ? -,' h y' -- ">'^: — iJ 4- 77 _. >* ..::r', ,' ^^ . ,.„ 7 ,, \J^. \ ^a^^ 1 ' -^^"^ "^ i— ^— -"*- "^ \ n - .. -i_. J 4-0 5^0 ^'o AfiditA ill cc. X/10 NaOH pci- 100 cc. cream seriin Fig. II. 60 Tlte Viscosity of Cream. 313 From these figuies it appears that, fur fresh cream, soured hy additions of pure hictic acid, the value of the critical acidity (expressed in the number of c.c. of XaOH IS/ 10 required to neutralise the acid contained in the cream) is between 5G and 57 cc. N/10 per 100 cc. of cream serum; but if the souring bo eflfected by means of a pure lactic culture, the critical acidity is considerably greater, approaching 65 cc. N/10 per 100 cc. of serum, or possibly even higher. It is, however, difficult to ol)tain the exact value for the critical acidity in the latter case, owing, firstly, to lack of evidence as to the probable effect of such factors as the age of the culture employed, and the rate at which it produces lactic acid in the cream, and secondly, to inability to calculate the interval of time required for the culture to bring the acidity up to the critical j^oint, as it is found that souring produced by this means is at first slow, but at a certain stage the rate of acidification is greatly accelerated. Effect of Previous Heating on Critical Acidity of Cream. — It is worthy of note also that previous heating of the cream may modify the results of the experiments, and give a different value for the critical acidity. Cream, wliich has been pasteurised after separation from fresh milk, if acidified with pure lactic acid, has a critical acidity slightly higher than fresh cream so treated. But if the pasteurised cream is soured by introduction of a pure lactic culture, the viscosity rises gradually with increase of acidity, so that instead of a sudden raj^id rise at the critical point, there is a steady increase of viscosity with increased acidity over a certain range, a pronounced rise of viscosity being attained at the degree of acidity which corresponds to the critical acidity in the cases previously described. A few experiments made with cream from milk kept at a high ■ temperature for some little time are interesting in that they show a difference in the behaviour of the cream so obtainc(\ on the addi. tion of acid. The fresh milk was gradually heated under pressure in an auto- clave until the indicator registered 105 deg. C. The milk wa."? kept at this temperature for al)Out 20 minutes, then removed from the autoclave and allowed to cool. The skin which had formed on the top of the milk was skimmed off, and the milk separated. The critical acidity of the cream thus obtained was found to be considerably lower than that of fresh cream or pasteurised cream. When the milk, after heating, was cooled rapidly by being made to pass through a condenser, around which circulated a stream 17 314 Frances K. M. Diimaresq : of cold water, the critical acidity of the cream separated from this milk "was somewhat higher than that of the cream from the milk cooled slowly in the air. This is possibly explained by the fact that in the former case very little skin formed on the milk du)-ing the cooling process; in the latter case the skin which was removed before separating the cream contained the larger fat globules, together with an appre- ciable quantity of protein. TABLE 111. Pasteurized cream from new milk soured by pure lactic acid. Exi>eiiiiieiit. Time of flow, (seconds) Aciditv in cc. N NaOH^^ per 100 ce. cream serum. Fat. (per cent.) A 118 22.2 32 134 52.9 — 145 5.5.1 — 165 60.2 — 1800 64.7 Commercial pasteurized cream acidirted by pure lactic culture. B - 234 - 33.9 - 41 C - 110 - 21.9 - 36 234 33.9 360 51.7 650 55.9 1800 67.8 110 21.9 130 40.6 165 50.8 255 53.1 260 57 325 57.8 2700 59.4 3600 68.7 The Vii^coait}] of (.'ream. 315 -iA-UA U U- . . ...... .,p.._^ ^ ~ .-.:.( TTiH 1 r i : ; i ] ! t ' ; M4-,v-!- :r."i ; 1 ni^^T M 1 1 : J 1 1 _^ 1- .J li ... ■ , 1 ,' i-j i i ^ ^ ' ] . ■ 1 i- 4- l_.-p. -_.-,. "r'Ti + 1 qi; i i ; I ' J • 4- -^ -i- t It' "1 •-■-; " _r ■ I i ' I ' 1 ' ' 1 h ■ ( ! ' IE iO ! ' * ; 1 -+- f-r-— -- r h ! 1 ■ ; t '"ri -1 r 1 r • 4-1- J 11 " i— I— S' ' ' 1 1 1 1 1 I 1 ^ 1 , 1 T j_ i 1 1 1 . _1 1 1 J-- -i ' 1 : 1 ; 6' ' i i ! ■ ; 1 ; 1 1 ! ■ ' ' 1 ' 1 1 - 1 4 i ' i 1 1 . r 1 1 I i ' ' ' ■ ' !' i ! 1 ' i II 1 1 ! i i 1 i M ' ' i t 1 ' • i ' ' 1 ■ \ \ ' j : 1 i j j I i 1 1 ! 1 "1 ' i ' 1 ' ' 4' 1 ; . .1 i . _i- t ' 1 1 1 ! 1 ' ; 1 1 I' ' ! 1 1 1 ! ■1 ! i i i M ' ' , : • 1 1 ) T. i ' M ' 1 • / 1 Ml 1 M M - > ' i '■ * ' 1 1 ■ ' ! M ^ ' ' saftH X tr 0 GO i 1 ! 1 I'l : • uj : ■ ; r ', , . -^ i^"^ 1 I "! "~ -~ TTTr-r^ br+ 1 -rT+^ ^- -i-i — -U ! LL J- iri 1 j ■ 7^ ' : i i I } 44-T-l- ^3 4^ tp 8' ■ ' M \ ' p-I T~ r '■ ' I ' 1 . i T W' Mi' ' - ■ lyf 1 1 ■ 1 ! ' 1 i ■ 1 ' ' \ 1 / ! ^4-i -E Tj^w ' it (.' ifr^ 7i^ i ] I" i 7^ 4' T^:|= It ^-"^■^ I iH-i:^ 1 LL ' M ! 1 : y< i -C __| ^' - 4: r! i ^ -r -^^ 1 i 1 1 0', . . . -..^ . -,<- ,1. «^_ t_ U- • /•' __ X X t» t r- Pr +4- F-r ' "^ "^+ ■" iTih 41 "iix 4- 4- fit it 41 ijt T "" ii 41 jT * ' 4lt SI / Ti*^ . '^ ■^ - -. ' ^/ -4- ' 41 T T4- ^'^ it X IZ 4_ _r 47 ■ y • y ^ ^ 1 1 ^~^f^\ ' '*■! i 1 ' i ' ' 1 i i ! 1 4:^ STo 4-0 yo Acidity in cc. N/10 NaOH per 100 cc. cream serum. Fig. III. 316 Fi'■ ' : \ • ' / , 1 t ; i > 1 1 ■ 1 1 J 1 I / ^ZL 1 M /■ : 1 1 1 1 1 M i 1 ' ' 1 ' 1 ' _L_L 1 ! M ! I i I ; i ' itzz :: ' 1 1 1 ' ' ; 1 ' / 1 . 1 ! X i ' 1 ! ! ■] \\ ■ ' ■ i"""r ■■^TT ' — __^_^_f. \ ■ ' 1 ■ 1 i ! ; ! i i 1 • ■ / • : 1 i ! i i 1 1 1 ! 1 ; II 1 ^^ -■■ j ■ , ! I i : 1 1 1 i ' ' ! ■ ' . ' y ■ ] -'■ 1 1 'II' ■ ' ' y ! i ill. \ . ' ' ' / j 1 i ! ■ ■ ' i ; y 1 ! I I 1 1 i > 1 ! Ml J* ' -i--t 4' 1 III ! ' ' ' ! ; ■ 1 ' y^ / , 1 ^ : M 1 ' 1 ' f^ ' ■ ' 1 i ■' ' \ ; , , ! , ■■f" ! M ; 1 j^-f' '1 i 1 ' "^ I ! 1 1 , 'ill' 1 .Ml — -h n ' t i 1 1 J M M 1 1 < 1 T~ ~T- ' 1 1 'i 1 ' i 1 1 1 1 i ■ ' ! . ) ' ' 1 ; 1 1 1 ' 1 j M ; i ! 1 -4 ^ 1 ' ' ' \ '■ f ' i i 1 I ! 1 i 1 • * ' i ! 1 [ i ( ' ! 1 : i t I \ - ■' 1 { ■ i i 1 ! ' ^ 1 ■! ' ' M 1 1 ~^'l~' 1 1 ' 1 1 M i -; — U -r-T++— i—f /o Jia 30 10 3' —\- 4-n Mil -1 — r i ■ ■ ■Tr-C --M \-\ ___^ -n rm |+_^^__-: r IT ~1 1— r H 1 1 1 1 I • i ^W U-. -i /'. \ ■ — \ --/-+-\ 1 — X r= ' 1 1 i-rr- M-H- .^ — u W^PI ! — j — 1 U^ — I : — ^ :T+=F4l f i"T 1 ■ Itttti r-l |J 1 1 ; 1 1 ::_^:q ' • ' I — 1 — \- ' ' I /Ti \ ^ ^ -__. ■'ill 1 1 ' M M i 1 1 I 1 j 1 : 1 ! JC '■■ 1 r-^-+^ i' . . Mill 1 , 1 1 1 1 ! -j-i- 1 1 i 1 1 — 1 -4- -ts"t^-— t- ! 1 M ■ 1 i .__L. — I ! ' i ' i 1 M I '^^-^ ^^V :±J:i:::: 4-i= E±:i ;;:%; rr+— -J — T— 1 . M ^-^ -4^ Y^T 1 — i_ r=="=S= - 1 M 1 -1 Ml i 11 1 MM 1 :±_i. 10 ^0 30 Fat Content. 40 so Fig. V. 18 322 Dumaresq : The Viscosity of Cream. SUMMARY. 1. The main factors instrumental in varying the viscosity of cream are acidity, temperature and fat content, and of these three the first holds the most important place. 2. Increase in acidity produces very little effect on viscosity of cream, up to the " critical point," at which a sudden sharp rise in viscosity occurs. 3. The change in viscosity of separated milk at the degree of acidity corresponding to the "critical acidity" of cream is very slight — i.e., for separated milk there is no "critical acidity," proving that this is a property of the fat globule, or rather of its envelope. 4. Increase in temperature of cream diminishes its viscosity, at first rapidly, afterwards at a slower rate. 5. The viscosity of cream is a quadratic function of the fat con- tent, if the other factors remain constant. In conclusion, I take this opportunity of expressing my sincere thanks to Dr. Rothera, at whose suggestion this work was under- taken, for his continued interest and help. [Proc. Roy. Soc. Victokia. 25 (N.S.) Pr. II., 1913.J Art. XXV. — General (tad Mining Geologi/ of I he Diamond Creek Area. Bt NORMAN R. JUNNER, B.Sc. (Kcruot Eesearch Scholar, University of Melbourne). (With Plates XXV. and XXVI.). [Read 12th December, 1912]. 1. Introduction. 2. Pi-evious literature. ;}. Physiography. 4. Stratigi'aphy. 5. Structural featui-es : — (a) Folding-, crvimpled anticlines ; zones of crushing. (b) Dip and strike of silurian and evidence of pitch. (c) Relation of mining lielts t<) structural features. (d) Faulting. (e) Igneous intrusions. € Petrology:— (a) Silurian st^diments and their origin. (b) Basalt series. (c) Dykes. (d) Discussioii of the alteration of the dykes. (e) Gold quartz veins and shale reefs. 7. Geology of the Diamond Creek mine : — (a) Featui'es of the silurian, stru(;tui-.il and lithological. (1)) Breccia and crush conglomerate. (c) The Diamond Creek dyke. (d) Faulting later than intrusion of the dyke. 8. Relations of the quartz reefs to one another : — (a) Occurrences and relative age. (b) Oi'igin f the ore shoots, etc. 11. Summary and conclusions. 1. — Introduction. The area discussed in this paper comprises the central and western portions of the Parish of Nillunibik. The author originally intended to map the eastern portion also, but oAving to a rather late beginning and' to concentration on the mining geology, this 13a 324 N. R. Jur.ner: was not possible. Nevevtlieless a fair amount of field Avork was. done in the neighbourhood of Kangaroo Grounds. Tiic only pre- vious mapping done in the area Avas a rapid survey of portion of the Parish of Nillumlnk by 0. A. L. Whitelaw in 1895. and the mapping of the main axial lines east of Diamond Creek by J. T. Jutson. 2. — Previous Literature. 1. A. K. Selwyn began the literature on this area in a report on the Geological Structure of the Colony of Victoria, the Basin of the Yarra, etc. ; Votes and Proceedings of tin' Legislative Council of Victoria. 1855-1856, Vol. 2, Pt. I., with plans and sections. In 1876, R. Brough Smythi briefly described the general mining features of the Diamond Creek gold field. He mentions the occur- rence of eurite at Diamond Creek, and draws a parallelism be- tween it and the acid dykes at Mount Bischoff, Tasmania. He also traced a line of older basalt and gravels from Kangaroo Grounds past the Dandenongs to the River Latiobe, and thence to near the coast in South-West Gippsland. In 1894, R. A. F. Muriay- visited the auriferous " cement " deposits near Greensboro ugh. Eltham and Kangaroo Grounds, and reported very briefly thereon. In 1895, 0. A. L. Whitelaw, of the Victorian Geological Survey,, made a rapid survey of jjortion of the goldfields between Warrandyte.. Greensborough and Queenstown. He mentions a distiiK'tive l)and of sandstone traced from 'the River Yarra to Diamond Creek, and intersected by spurs and veins of a dioritic dyke. He was of the opinion that the quartz reefs were formed along a line of anticlinal fracture. H. S. Whitelaw"' iu 1899 noted the occurrence of sribnitc in (juartz leefs. and in certain bands of the silurian at Diamond Creek. In ]!)()(). V. Iv. Stirling* reported on the New Pioneer reef, Xil- lumbik. A feriuginous quartz-reef, two to four inches wide, and dipi)ing at about 70 deg. to the west. Iiad been worked with fair success. 1 R. B. Smyth. Report on Kltliam iinil .VlleiulaU' ^^old field. I'roj;. rveport Viot. Geol. Sm\., No. 3, 1870, pp. 34-38. 2 R. A. V. Murray. Report on the auriferous roinitry near fjineenstowir. I'ro-;. Report Vict. Geol. Surv., No. 8, 1804. 3 II. S. Wliitelaw. Antimony ores in Victoria. Pro^. Report Vict. Geol. Surv., No. 10, 180S). 4 v. 14. Stirling'. Notes on the New Pioneer reefs, NilhimbiU. Monthly Vvo'^. Report Vict. Geol. Surv., No. 10, pp. 7, 8, 1000. Geology of tli<- I'io imnnl Creek A'rea. 325 Ml-. Dunn.l in 1905, visited the L'liioii Mine, Diainoiid Cieeii. In liis report lie mentioned the northerly pitch of the country and of the shoots of gold. He stated also that the (piartz veins were filling couitruction fissures in the dyke, and that payable gold wimid prol)ably be localised near the intersection of the ff)ot\vall reef with certain bands of the country rock. Two sections illustrat- ing the relations of the dyke, breccia and ([uartz reefs with the Silurian, accompany the report. J. T. Jutson,2 in a papei' read before this Society ini l!)Ul). de- scribed very fully the physiographii' characters of the Plenty liiver. The present valley of the Plenty, south from Morang. is described as a young stream wliich has eaten its way back toAvards the old Plenty River near Morang. A tongue of newer basalt filled up this valley to near Greensl)orough, and the present valley was cai-ved out near the junction of the neAver l)asalt with th.- older rocks. J. T. Jutson,-^ in an excellent jihysiographic papiT on toiv of the rieiity Ktver, ete. Hroc. l!oy. Soc. Vict., vol. xxii., I't. II., (U.S.). 190>». 3 .1. T. Jutsoii. I'livsioiT. of the \';iii-a livei-, etc. I'roc. Kov. Soc. Vict,, vol. .\xiii., (n.s.), Pt. II., 1911. 4 J. T. Jutsoii. The structiual and jjciieial geoloyy of the Wiinaiidyte gold field and adjacent country. Proc. Roy. Soc. A'ict., vol. xxiii., Pt. II., 1911. For pur]K)se-^ of reference we shall call these papers by .hitson, a, h, e, respectively, u .Jntsoii. h, |>. 477. 326 .V. 7^. Jiinner: very nearly 1000 feet above sea level. The greater part of the pene- plain consists of folded silurian sediments. Patches of basalt and gravel occur near Kangaroo Grounds and Greensborough. Eesi- duals or monadnocks are few in number, and therefore presum- ably peneplanation was almost complete, and the then existing streams were probably all nearly base levelled. This being so, the present elevations of the river gravels should afford a clue in determining the variation in direction and intensity of the later movements cennected with the uplift of the peneplain. The uplift was slow and differential in character, as is well shown by the ante- cedent character of the Yarra near Warrandyte. ^' 2 Tilting of the peneplain has occurred in an east and Avest direction, and also to a slight extent in a north and south direction. On going north toAvards Queenstown and Kinglake, the country is seen to rise gradually. The east and west slope, however, is very marked, a difference of over 400 feet in the elevation of the gravels occurring in a distance of about five miles. Thus, near Greensborough, the elevation of the gravels is about .350 feet.^ About one mile east of the Diamond Creek mine, the elevation is 520 feet. At the Avest edge of the Kangaroo Grounds basalt, the elevation of the graA'-els is 650 feet, and near the cemetery about 750 feet. It is thus seen that as A\'e go east across the area there is a progressive and moderately uniform increase in elcA'ation. FoUoAving on the uplift a neAv cycle of stream activity Avas initiated, Avith the result that the peneplain has been rather deeply dissected, although at the same time dissection is far from being matured. The area is moderately hilly, numerous gullies and small streams abound, and the dift'erences in elevation betAveen these Avater courses and the hills are generally from 150 to 300 feet. The Plenty and Yarra Rivers have been described by Jutson, as has been above noted. The Diamond Creek, Avithin the limits of the area, is in a fairly matured state. Fairly Avide alluvial flats occur, and the creek meanders through these from side to side. The material constituting the flood plain is generally fine sand, and no coarse gra\^els occur, in- dicating that former stream velocities could only have been moderate. Residuals in the peneplain are few, and the main ones have been mentioned l)y Jutson. No physiographic evidence of faulting occurs in the area, although not far to the east, near Yaira Glen, such faulting has l)een described by Jutson.'' 1 J. \V. Gregory, Geograpli.v of \ ictoiia, p. IOC, 107. 2 Jutson. b, p. 485. ;) Note all plevations are ariei-oi 1), p. 478. GcoliKjij of the Diamonil ('reek Area. ■>2', 4.— Stratigraphy. The follo\viiii( formations are represented in tlie area: — - -r, , . I Silurian sediments. Jralaeozoic ; ■ , , , i ? Devonian acid dykes. ,„ . , liiver or lacustrine jfi-avels, sands, etc. tertiary ' ( Basalts. Recent alluvium. The oldest member of the series consists of interbedded sandstones, mudstones and shales, containing considerable amounts of mus- covite, and varying greatly in colour and coarseness. Occasional bands of quartzite and slate occur at intervals, and a series of grits and conglomerates has been described from Warrandyte.i i-i^rom the various lithological and microscopical characters of these rocks they appear to be entirely marine, and to have been laid down mostly under shallow water conditions. Cf Jutson. c, p. 530. Some of the sandstones in the west of the area show good current bedding on a small scale, one section in particular from Dry Creek showed this very well. No extensive palaeontological work was attempted, mainly owing to lack of time. An interesting find, however, was the discovery of graptolites in black pyritic slates from the Diamond Creek mine. Dr. Hall has kindly examined these, and he has informed me that both climacograptus and diplo- graptus are represented, but he says there was not sufficient evi- dence to enable their precise age to be determined. It may be of interest to note that climacograptus and diplograptus both range into the lowest member of the silurian, namely, the llandovery series in England; but as fas as the writer is aware, neither have been definitely proved to exist in the silurian in Victoria. It seems clear, therefore, that the beds near Diamond Creek are at least melbournian or older in age, and probably older than Jutson was inclined to regard them. It might be noted in this connection that Selwyn regarded the beds of the Templestowe anticline, i.e., the anticline near Diamond Creek, as the oldest of the scries. Two or three other fossils were found, and for the examination of them the writer is indebted to Mr. Chapman. The first fossil is from section 7, allotment 3, in the east of the area, and is a trachy- derma, which Mr. Chapman informs me occurs botli in melbournian and in the yeringian, and so is of no diagnostic value. The other fossil examined was from the Plenty River just below the aqueduct. 1 Jutson. c, p. 530. 328 iV. R. Junner : Mr. ( 'hapTiiaii ck'scrilu-s it as the remains of a })liyllncai'id re- sembling ]Jit}ii/oc(iri.s praecox. Chapman, hut much smaller. A similar fox'm has been found in the nielbotirnian at IVIerri Creek. Acid dj/hes. Three of these, namely, the Dry Creek dyke, the Diamond Creek dyke, and the Warrandyte dyke occur in the area investigated, although only the former paii- have been studied in detail. The Diamond Creek dyke is most important economically, as it is with this dyke that mining operations in late years have been mainly concerned. Their exact age is not stratigraphically deter- minate. They are later than the folding of the silurian, and are overlaid in some cases by alluvium. In one case, in section 16, allotment D, a basaltic dyke cuts across one of these dykes. The age of the basic dyke is probably about middle tertiary, and so it affords little value in the determination of the age of the acid ones. Probably the intrusion of the acid dykes was connected with the earth movements that caiised the folding of the silurian, and these are probably devonian in age. Siih-lxtsalt ic river (/ravels, )^(nif/s, etc. Lithologically all stages are present in these between coai'se gravels with pebbles up to six inches in diameter, and fine uncon- solidated sands. Frequently the sands and gravels have been cemented togetlier forming the following : — Silicified grits grading into quartzite. Ferruginous grits where tlie cementing matei'ial is either limonite or hematite. Calcareous grits, consisting of ([uartz grains, set in a paste of calcium car- bonate. Where the grains of (piartz arc more angular, various ty})es of bi-eccia are fornu'd. Thin bands of limestone occui- interbedded with the sands in sevei'al 2:)laces. Silicification of the fine sands frequently occurs with the forination of (piartzite. Professor Skeats and Mr. Sumincrsl l:ave noted the intimate association of the quartzites with the lava flows in the Macedon area. While this is frequently the easi- near tin- basalts at Greensborough and Kangaroo (Irounds, (juartzite hy of Victoriii, p. St4. Oeoloyy of the Dlaniotul Creek Aren. 329 likely. Near the margin of the basalt in several places, but especially near the northern limit at Greensborough, good examples of fossil wood have been found. The structure iias been remaik- ably well preserved in some examples. A section of the wood was examined by Prof. Kwart. He informed me that he felt sure that the wood belonged to the eucalyi)ts, l)ut that one section was not sufficient to correlate it with existing species. The sands are frei[uently horizontally bedded, and some sections show good cur- rent bedding. The gravels which were foi'merly the position of the valleys now frecjuently occur as ridges elevated above the sur- roundings. The reason for this is twofold. (T) the basalt has pro- tected the gravels, and even in places where the basalt is not now pi-esent. it may formerly have covered them. (2) the resistant character of the gravels in themselves. Small amounts of gold occur in the sands and gravels throughout the area, and they have been worked at several places with indifferent results. Just to the east of the main road from (Treensborough to Diamond Creek, near the southern limit of the basalt, over .£1000 worth of gold was won in about seventeen years. The sands were also extensively used in the construction oi the Maroondah aqueduct. Basalts. The basalts occur in the extreme east and west of the area; one small patch occurs about one mile to the east of Diamond Creek. The writer has separated them on peti-ological grounds into 3 types. 1. Fine grained aphanitic basalt. 2. Medium to coarse grained basalt and dolerite. 3. Garden Hill basalt, medium to fine grained in character. No field .separation of these types was possible. The tirst type is well exemplified in a quarry off the main road near the northern limit of tlie l)asalt at Greensborough, and also in a quarry just to the south-east of Garden Hill. In both quarries the basalt is clearly the basal member, and has filled up the prebasaltic stream valleys. In both cases also columnar structure indicative of fairly rapid cooling has been developed. The columns are ver- tical and cleanly cut. The second type is a rather coarse grained basalt or dolerite. i It is the average type throughout the area, and it overlies the finer grained type near Greensborough and Kangaroo Grounds. The third type, as the name suggests, is typically developed afc Garden Hill, Kangaroo Grounds. It is medium to fine grained 1 Chamberlin and Salisbury. Processes and Results, p. 398. 330 N. R. Junner: in character, and is frequently vesicular. Further down the slopes of Garden Hill, the basalt is a dark compact fine grained type. Ao stratigraphic determination of the age of the basalts is possible, since they overlie leads whose age also is in doubt. The basalt at Greensborough is older than the newer basalt to the east of Mel- bourne, since a tongue of this basalt has filled up the old valley, which has been cut near the junction of the older basalt and gravels with the Silurian. On petiological and physiographical grounds the writer has no hesitation in correlating it with the older rather than the newer basalt. The 1902 geological map of Victoria issued by the Geological Survey shows the Greens1)oi-ougli basalt as older basalt and the Kangaroo Grounds type as newer basalt. A later mai? published by the same department shows both as older basalt. More certain evidence of their age is obtainable physio- graphically. Jutsoni mentions that the Kangaroo Grounds basalt is a monadnock in the peneplain. He2 also has shown that the age of the peneplain is probal)ly kalimnan, tliat is, lower pliocene^ or upi3er miocene. This being so, the age of the basalt is prepliocene and probably miocene. The brief investigation of this point by the writer supports the view that the Kangaroo Grounds basalt is a monadnock, and that vei-y little vertical erosion occurred between the filling up of the river valleys by the basalt, and the final pene- planation. At Greensborough the evidence is less certain, but petrologically these basalts appear to be identical, and the writer believes therefore that thev Avere both extruded towards the end of the peneplanation, and therefore their age is probably miocene. The Garden Hill basalt occurring at the highest point of Kangaroo Grounds is much more scoriaceous, and has a smaller specific gravity than the main Kangaroo Grounds basalt, and is possilily of more recent age. 5. — Structural Features. (a) Foldiuff, crumpled aididines ; zones of crushing. The Silurian sediments have been normally and fairly openly folded throughout most of the nrpa. The major axial lines in the east of the area have l)ecn inajiped by .Tutson. The positions of these have been verified by tlie author, and, in additi(ui, a few minor folds have been located. A major fold is well seen in a railway cutting near Greensborough station, and the same fold has 1 b, p. r.02. 0 2 1), p. 4yy. 3 F. Chupiuaii. A stiul.v of tli l{.iti"»foi'iariioad Creek Area. 333 to be extensively developed near the Templestowe anticline, and the joints are seen to be mainly strike joints, and are probably con- nected with the folding of the sediments. (d) Fault} in/. Two main periods of faulting have been noted : — 1. Pre-mineralisation. 2. Post-mineralisation. As examples of faulting previous to the formation of the quartz reefs, we have the brecciated zone, now occupied by the Diamond Creek dyke, and probably the slips parallel to the bedding plaries belong to this period. Movement later than the formation of the reefs is well illustrated by tlie numerous strike faults occurring in the Union and Diamond Creek mines. This type of faulting has not been recognised elsewhere in the area, although it is possible, but not probable, that such fatdting has been missed, due to the fault planes coinciding with the dip of the beds. As regards igneous intrusions, the basalts and acid dykes have already been described under stratigraphy. Only two basic dykes^ from the area are known to the writer. One was found by Howitt^ at the Caledonia mine, Warrandyte, and was determined by Pro- fessor Skeats as a monchic[uite, and the other was found by the writer in section 16, and is described later. 6.— Petrology. (a) Sandstones and their origin. Several sections of the sandstones from various parts of the area have been examined by the writer. Section A18 from the Watts River aqueduct near the AVarrandyte anticline is a typical example. In hand specimen it is seen to l»e a dark-coloured, dense, micaceous rock . Microscopically the foUoAN ing minerals arc recognisable : — Quartz, muscovite. chlorite, tlint. t<>ur-malinc. zircon, rutile, apatite, mag- netite, leucoxene. biotite, plagioclase, iron oxides and patches of carbonaceous material. Quartz occui's in all sections examined in well over 90 per cent, of the rock. Tlie grains are either angular er subangulai', and are very rarely rounded. Numerous micro- 1 Tlie writer has since seen in the National Mdsenni, Melhourne, a specimen of j/iira lanprn- pkyre from the liiioii Mine, Diamond Creek. 2 A. M. Howitt. Notes on a Sketch Survey, of the Caleilonia Reefs at Warrandyte. Kept. CJeol. Surv. Vict., vol. 3, Pt. I, 1900, p. 40. 334 iV. li. Junner : .sco})i(.- ])ri!siiis of lutile or zircon, and linearly arranged gas and liquid inclusions aie present in the quartz grains. Strain polarisa- tion is a common feature in the quartz grains. Muscovite is i'airly common, and occurs as twisted flakes which are frequently bordered by green chlorite. Chlorite also intrudes itself along cleavage planes. A brownish green variety of chlorite is more common, and it api^ears to be an alteration product of some iron magnesium mineral, as biotite. Biotite and an acid plagioclase also occur in small amounts in nearly all sections. Of the usual concentrates found in such rocks as these, zircon and touinialine are most common. The detrital origin of these is evident by the rounding of the salient angles in the prismatic crystals, llutile is not un- common, and generally occurs in brown j^rismatic crystals. The individual cpiartz grains are generally not very closely packed, and the cementing material usually is micro- or cryptocrystalline silica, which is often stained with brown hydrated iron oxide. Occasionally tine sericitic mica and chloritic material form the bond. In the fossiliferous g-rit from Warrandyte. the cement is largely calcite. The nature of the rocks from which the silurian sediments were derived has been discussed by Jutson.i He showed that the pebbles in the Warrandyte conglomerate were practically entirely of a sedimentary nature, i.e., quartz, quartzite and sand- stone, and no jDebbles of an igneous rock were present, and this led him to conclude that the rocks from which the conglomerates were derived consisted largely, if not entirely, of altered and unaltered sediments. In such an old conglomerate as this, however, we might well expect to find onl}' the more resistant rock types, like the ones above-mentioned, remaining, although igneous rocks may have originally been present. On petrological grounds, the writer draws the conclusion that the sandstones were derived to a fair extent at least from a pre-silurian igneous rock, probably granitic. Tliis view is supported by the following evi- dence : — (1) The abundance of mu.scovite ; (2) The presence of biotite and plagioclase, and chlorite, which is usually derived from unstable iron magnesium minerals; (3) The occurrence of zircon and rutile ci'vstals in the quartz grains in the sandstone may indicate an igneous origin for such quartz. (4) The constant presence of tourmaline sup])orts such an origin ; (5) The absence of metamorphic minerals, garnet, etc., show that they were not derived from metamorphic rocks. 1 p, p. .'■.32. Geology oj the Uiamond ('reek Area. 335 (1)) Basalts. 1. Fine grained Ijusalt, ([uarry near the northern limit of the basalt at Greensboroiigli. Macrcscopically this rork is dark grey in colour, and is compact, and aphanitic with the exception of occasional felspar phenocrysts. A sample was collected from the quarry above mentioned and analysed by the writer in tlie Univei'sity geological laboratory. The weathering of the basalt in this quarry has led to the solution of lime and magnesia, and these have been redeposited as a niagnesian limestone. For the purpose of comparison an analysis by F. L. Stillwell of Uie older l)asalt from near Broad- meadows is appended. A. B. SiO, 46.43 44.95 AlA 17.60 15.50 Fe,03 8.51 2.04 FeO 2.44 10.47 MgO 8.03 7.43 CaO 8.12 8.24 K^O 0.92 1.98 Na.,0 3.56 3.04 H.p + 1.20 2.60 H.,0- 0.81 0.52 CO, p.n.d. 0.18 TiO., 2.25 2.77 PA 0.37 0.52 MnO 0.22 0.21 (Ni,Co)0 0.07 — Total 100.53 100.45 A. Fine grained ba.salt quarry off main road, near northern limit of the basalt, Greens- borough— S.G. 2.94. B. Older ba.salt (A) quarry, Section 15, TuUniarine, county of Bourke. Mici'oscopically the texture is aphanitic with occasional por- phyritic felspars. The mineral composition of the rock is thus : — Plagioclase, olivine, augite, magnetite, ilmenite. zeolites and apatite. Plagioclase occurs in two generations, firstly as long iaiomorphic clear and gla.ssy laths showing lamellar twinning generally, but occasionally only simply twinned. Pressure effects, probably of a local origin, are noticed in the twisting and fractur- ing of the laths, by wedging of the twin lamellae, and also by cross fractures almost at right angles to one another, and generally obli(|ue to the planes of twinning. Olivine is almost indeterminate in ordinary light, due to its invasion by the ground mass. Concen- tration of black iron oxide occurs frequently in the centre of the crystals, and radiating linearly arranged rods of the same material 336 N. E. Junner: pass out to the edges. In bright, reflected sunlight, the olivine is seen to be mostly altered to red iron oxide, probably hematite. An occasional porphyritic crystal of augite occurs, and has sui!ered like the olivine. The bulk of -the augite, however, occurs scattered through the ground mass of the rock as yellow and colourless anhedral grains and prisms. The ground mass of the rock consists of microscopic laths of felspar, often in fluidal arrangement, and abundant dust and fine grains of black iron oxide. Zeolites occur in all sections examined, and they are frequently associated with apatite needles, and contain prisms of augite and grains of magnetite as inclusions. The phenocrysts of olivine and plagio- clase had probably crystallised out from the magma before ex- trusion, and rapid chilling caused the separation of microlites of felspar and dust of iron oxide. Section A.32, Kangaroo Groimds, quarry, south-east of Garden Hill, shows i^ilotaxitic structui'e. Zeolites of very low birefringence occur filling vesicles. Radiating natrolite with birefringence, considerably above the felsj^ar also occurs, filling steam cavities. Section A28 shows olivine frequently clear and colourless. Occasionally the outlines of felspar now replaced hy zeolites are seen. 2. Medium to coarse grained basalt. — In hand specimen, with the aid of a lens, crystals of weathered olivine and felspar laths can lie sometimes identified. Microscopically this type differs from the first in the presence of numerous phenocrysts of titaniferous augite, and in the iiatu>'e of the giound mass. Section A15, Kangaroo Grounds, is a holo- crystalline fairly even grained hypidiomorphic rock with oj^hitic texture. The minerals present ai'e plagioclase, augite, olivine, magnetite, ilmenite and apatite. Zeolites and chlorite occur as secondary constituents. Plagioclase is present in long prismatic lath.«!, frequently zoned, and having a maximum extinction of about 42 deg. The augite is a titaniferous variety, and it is pleochroic from jiurple to brown or yellow, and occurs in anhedral forms. Extinction angle of the augite is 50 deg. from 100. The augite is ophitically penetrated by the felspar laths. Numerous inclusions of olivine occur in the augite. Olivine is present chiefly as allotrio- morphic grains. Alteration has taken place along ci'acks to greenish chloritic material, and occasionally to red iron oxide. Magnetite commonly occurs idinmorphic as octahedra. Numerous irregular grains, purple in reflected light, are probably ilmenite. Low polarising zeolites frequently fill interstices in the rock. The rock may bo described as an ophitic olivine dolerite. Geologi/ of the Diamond Creek Area. 337 Section A2;j, Kaiigaruo Grouiids, near the ceiueterv. In this «ec'- tiuii the ophitic texture is absent, and tlie felspar hillis are hirger tlian in section Al"). ."5. Garden Hill basalt. — This typu dilleis Ifoni tlie second type in the rarity of the phenocrysts of augite, and in its finer grained character. The specific gravity of this type is also markedly dif- ferent from that of tlie former types. The specific gravity of the third type is about 2.86, while that of the fii'st two types is about 2.9;J. Section A24. soutli of (iarden Hill, is a typical example. Tn hand specimen it is a black, dense, almost aphanitic rock. Microscopically it is a huloLrystalline fine gi-ained lock, showing pilotaxitic structuic, and having a tendency toAvards a porphyritic habit. Phenocrysts of olivine occur in a moderately hne grained base of augite, plagioclase. magnetite, ilmenite and apatite. Secondary minerals, as seri:>entine, zeolites and iddingsite are pre- sent. Olivine, colouj'less, is occasonally altered to green serpentine, and I'ed brown iddingsite. Augite occurs very rarely as purple phenocrysts, and is generally 2)resent as microscopic anliedral grains and prisms, having an extinction angle about 45 deg. Long prisms of felspar, Avith maximum extinction angle about 33 deg., indicate labi-adorite of composition near Ab.^ Aug. Microspherulitic zeolites occur distributed throughout the ground mass. Section A21, Garden Hill. — Olivine is largely replaced l)y idding- site. Small amount of glass or isotropic zeolite present. (c) T)!flce.<<. 1. Basic dyke. This dyke occurs in a small shaft in section 16, allotment D. It was not possible to determine its strike or to trace it on the surface. Macroscopically it is a greenish grey coloured amygdaloidal rock, resendiling a basalt. It weathers to a brown iron-stained material containing numerous unaltei'ed crystals of augite. Microscopically it is a holocrystalline, panidio- morphic, porphyritic textured rock. It consists mineralogically of phenocrysts of olivine and augite in a ground mass of microlites of felspar, granular augite, olivine, magnetite and apatite. Secondary minerals compiise zeolites, talc, calcite and leucoxene. Augite occurs in large idiomorphic phenocrysts, brown or purple in colour, and decidedly pleochroic, indicating a titaniferous variety. Simple twinning im 100 is seen by re-entrant angles and differences in polarisation colours. Multiple tAvinning, tAvin and •20 '638 iV. R. Junner: oouipusition 2:ilane UOl well developed. Iddings^ mentions that this type of twinning is often developed by pressure. Extinction angle of the augite varies from 30 deg. to 37 deg. Cleavage parallel to 110 perfect. This augite is of interest since in some cases it appears to be almost uniaxial, and the writer was able to determine its sign as positive by the mica plate. A. N. Winchell^ has noted that in a titaniferous pyroxene from Pigeon Point, Minnesota, the optical axial angle is so small that in some cases the mineral appears uniaxial. This seems to be the case in the above-mentioned augite. Inclusions of plagioclase in augite show" that, in part, the augite crystallised out later than the felspar. Augite in the ground mass occurs as eight-sided granules and prisms. The prisms occasionally cross one another, forming stellate aggregates sugges- tive of the rare mode of twinning on (T22).^ Olivine occurs as anhedral crystals of moderate size, now almost entirely replaced by a colourless micaceous mineral with high birefringence, probably talc. Along cracks alteration to green serpentine or chlorite has occurred. Plagioclase is present in long latlis, having a maximum extinction of about 37 deg. The rock may be described as a basaltic dyke. 2. Dry Creek dyke. Section A25, Dry Creek dyke, near the Plenty River. In hand specimen this is a light-coloured rock, fre- quently iron stained due to oxidation of crystals of pyrite. The minerals present are not determinable in hand specimen. Micro- scopically the texture is holocrystalline and porphyritic. Miner- alogically the rock consists of phenocrysts of orthoclase and quartz in a ground mass of quartz, sericite, bleached biotite, plagioclase, orthoclase, magnetite and kaolin. Brown hydrated iron oxide is fairly abundant. Orthoclase is the chief jjorphyritic constituent. It is present as large, simply twinned crystals, having a maximum extinction angle of about 17 deg. Considerable replacement by quartz and sericite has occurred in many cases. Kaolin is probably a surface alteration of the orthocla.se. Plagioclase liaviiig a maxi- mum extinction angle of 14 deg. from the traces ol' the twin planes, to probably albitc, occurs in consicK'rablc amount in tlic ground mass of the rock. The biotite lias been bleached, antl hydrated iron oxide has been redeposited along cleavage traces, and it is frequently associated with brown piisms of rutile. The consider- able amount of iron oxide tliioughout the section represents the 1 UldiiiKM. Ro('l< Numerals, p. :i05. 2 A. N. Wincliell. Notes on .a titaniferous p.M'oxene. Aiuer. Otolosiist, vol. xxxi., 1903. 3 Iddiii-fS. Op. cit., p. aOf). Gcoioyy of the Diamond Creek Area. 339 replacement of pyrites by limonite. An occasional six-sided crystal of quartz, partially replaced by sericite, is present. The original rock. is thus seen to have been a quartz felspar porphyry. A similar conclusion was reached as to the original character of the Diamond (^reek dyke. Section A 21, from near the edge of the Dry Creek dyke, contains numeroTis xcuoliths of sandstone and slate. The plagioclase is zoned, and the quartz is frequently eaten into and replaced by .sericite. •5. Diamond Creek dyke. — This dyke was sectioned and examined before the writer had seen the Dry Creek dyke, and the main con- clusions regarding the nature of the alteration it has suffered were thus deduced previous to the examination of the latter dyke. Jn hand specimen the Diamond Creek dyke is yellow green in •colour, and contains abundant minute cubes of pyrite. Micro- scopically it is a hypocrystalline, very even grained aphanitic I'ock, with skeleton outlines of original porphyritic constituents. Microcrystalline quartz grains and flakes of sericite constitute con- jsiderably over 90 per cent, of the rock, the other minerals present being pyrite, stibnite, bleached biotite, rutile, carbonate occasion- ally, and possibly arsenopyrite and zircon. Idiomorphic outlines of the original felspar crystals are distinguished by the mox'e com- pact nature of the sericite in such areas. The metasomatic replace- nient of the felspar is generally complete, and so the stages in the alteration are not determinable. In only one section of the Dia- mond Creek dyke did the wa-iter see original orthoclase remaining. Karely a residual phenocryst of quartz occurs. Sericite usually occurs in cleai', colourless microscopic flakes, show'ing the usual delicate polarisation colours. Where replacing felspar, a linear arrangement of the sericite is sometimes seen. The original femic constituent of the rock was apparently biotite. As a result of the alteration, the l)iotite was leached, and simultaneously i-utile separated out in the biotite areas. This separation was usually in the form of " segenite "^ webs, but occasionally rutile occurs in prisms roughly parallel to the length of the biotite. Carbonate often occurs associated with quartz in veins through the dyke, but otherwise it is rare. Some of this vein carbonate was examined and found to be dolomite. Pyrite is common in cubic crystals, and stibnite is always present, but generally in very small amount when not near the quartz veins. 1 Rosenbusch, IddinjfS, p. 146. 340 N. R. Jn liner: (d) /)/seussio/i of the alteration of the (h/l.-a. It will l)L' seen that the Diamond Ci-et'k dj'ke consists of a very mucV altered porphyry. The alteration has been complete, and all of tliG original minerals have been replaced, and the ground mass has been recrystallised. Petrologically, it is seen that tiie biotite was the first mineral to be attacked, as in all sections of the Dry Creek dyke examined biotite was always entirely replaced, although plagioclase and orthoclase were sometinics only partially altered. The alteration apjjears to start first in the areas of orthoclase, although orthoclase occasionally remains when all the plagi(jclase has been replaced. Kirk.l in discussing somewliat similar mineral changes to those here described, has shown that the iron magnesium minerals are the first attacked, and that plagioclase commences to be re- placed ])y sericite and ijuartz before the orthoclase is attacked. Replacement of tlie felspar frequently starts along planes of Aveak- ness. such as cracks and cleavage planes. An analysis of the Dia- mond Ci-eek dyke was made for the purpose of studying the chemical migrations during the alteration. Tlie analysis gave the follow- ing results : — A. SiO, 76.25 AI.A 15.12 Ve,0., 1.86 FeO tr. MgO 0.18 CaO tr. K,0 3.10 Na.,0 1.37 H,0- 0.10 H..0 + 1.61 TiO,* — ►S 0.92 MnO tr. 8b,S, p.n.d. 100.51 less 0 = S.34 A. Diamond Creek Dyke, 800 feet level, ;d)out 200 feet from the underlay shaft along the north drive. Diamond Creek Mine. S.G = 2.72. — N. R. Junner, Analvst. 100.17 1 C. T. Kirk. Conditions of inint'i'alisatiori in the copper veins at lintte Montana. Kc'onoiuie Geology, vol. ii.. No. I., 1012. «■ TiOvi incliiflcd Hitli tlie AI-jO;i (icoluijij of the i) id mo ml Creek A reel. 341 From tlif fair amuiiut nf hintitr and lime soda felspars pro- bably orij^'iiially present, it may \'.v inferred that the percentages of lime and maj^'nesia were vei-y mueh higher than in the altered roek. The iron has probably not changed very much in amount, but sulphur has been introduced either as sulphuretted hydrogen or as alkaline sulphides, and this has united with the iron forming pyrites. It is not possible to say from the evidence of a single analysis what migration has taken place in the alkalies, although it seems 2>i'<>bal)le that a reduction in amount of Ixith potash and soda has occurred. Silica and watci- have both apparently increased in amount. Sericite is essentially a potash mica, and in the analysis over one per cent, of soda is represented. 'J'liis may pos- sibly be due to the presence of the soda mica paragonite, although microscopically no distinction could be made out. Kegai-ding the temperature of tlie altering solutions, Kirkl states "that where sericite can be certainly identified, it becomes a useful corroboiative criterion in the interpretation of previous hydrothermal liigh pres- sure coiulit ions. " Kutile is also mentioned as forming under eim- siderable pressure and modei-ate temperatures. We may, therefore. conclude that the alteration which the Diamond Creek dyke has suffered was prol)al)ly of the nature of a solfatarie after-effect undei- moderately high pressuie and temperature operating on the quartz felspar porphyry. This type of alteration agrees with " pi'opylitisation '"' as defined by Vogt.2 Kirk^ has summed up in tabular form the various alterations during propylitisation of the Butte granite, and the table below is a partial extraction. Chemical Alterations. Iron gained, sulphui- added to form pyrite. Losses in lime, magnesia and soda; transfornuition of iion o.xides to sulphides; decrease in all bases except potash, (xains in iron sulijliide, silica and water, alunnna. i)0tash, etc. M inei'a! .\lteiat ions. Development of sericite, (piari/. })yiite, chlorite, epidote, rutile. etc. Femie minerals are first altered and felspars are more- resistant. 1 Kirk. Op. cit.. p. lu. 2 Vosjt. Cienesis of ore liejiosite. Tran>. .^niiT. Inst. Miii. Emu'., liinl, |>. "KiS. 3 Op. cit.. p. (i7. 342 iV. 7^. Janner : Physical Alterations. Increase in density. With a view to deteiiuiniug the ehange in density due to the alteration, the specitie giavities uf the Dry Creek and Diamond Creek dykes were compared, with the following result : — Density of little altered dyke at Dry Creek, equals 2.59. Density of the Dia- mond Creek dyke from the 800 feet level of the mine, equals 2.72. We see thus that a marked increase in specific gravity has occurred, and this is largely exj^lained by the presence of pyrite in the one and its absence in the other. The chemical and mineral changes agree very well with those tabulated above, and the writer feels quite justified in calling the alteration a " propylitic " one. In the typical projiylitic alteration, chlorite is generally developed, and the potash percentage is generally increased. The alteration of the above dykes appears to differ from the typical propylitisa- tion in these i-espects. The only previous cases of propylitisation that have been described in Victoria are the Woods' Point dykes, ^ and a proi^ylitised dacite^ from Macedon. The Dian]ond Creek example differs from lioth of these in the absence of chlorite, and also in the fact that the ground mass recrystallised in eutectio proportions in both of the above cases, Avhile it has not done so in the Diamond Creek dyke. (e) Byhc veins and slate reefs. Section A23. — Cold-bearing quartz vein in the dyke, Diamond Creek mine. The vein is small, but very rich. The gold is seen without the aid of a lens sticking out at points through the vein. A consider- able amount of stibnite is present, giving the quartz a dark colour. Under the microscope the gangue is seen to be practically entirely quartz, and the metallic minerals are chiefly stibnite and gold. Orains of a. translucent, highly refracting and apparently isotropic mineral associated Avitli the stibnite appear to be the oxide senar- montite. The section .shows that the gold occurs in anhcdral grains and masses, frequently disseminated through the slilmite, and oc- casionally intergrown Avith it. The intimate association of the gold and the stibnite is well i(.'coguised l)y tlic minei-s. for they say that wherever you find stibnite, gold is certain to be ]»rcsent. Lin- colnS has examined twenty-eight sjxcimens of gold stibnite veins ] I'lof. C!re!,'ory. Men. Geol. Siiiv. Vict., No. ::, l!)Or>, p. 34. '1 I'rof. Skeatsaiid H. S. Suniiuers, M.Sc. null. No. 24, Geol. Surv. Vii-t., 1012. ;; V. C. Lincoln. Ceitain iiatunil associations of ;;olast was later than the formation of the reefs. The writoi- bclirvi's that the ri'cfs ari' tilling contraction joints whicli are roughly i)aiallel to the Avails of the dyki-, and that movement has occurred both before the formation of the reefs and for a AA'hile, after the ore had formed, .\ci-ording to this vicAv the fissures are essentiallv neither eoniraetion tissuies nor iissures of Geology of the DlaiHond Creek Area. 3-J'.> discission, Imt they are a combination of both. It is also fairly certain that the fissures in some places have l)een enlarged by metasomatic replacement. Absence of crustification, the dense character of the quartz, and irregular inclusions 61 dyke material, probably undigested portions, suggest this. (2) Fissures in which the bedded reefs occur. The origin of tliesc has previously been suggested as due to movements connected ■with the folding of the sediments. The correspondence of these reefs in dip and strike with the silurian also supports sncli an origin. Movement on a minor scale has taken place along the bedding before the formation of these reefs as noted al)ove. Occasionally slipping has occurred along the bedding, although no reefs are present. 9. — Origin of the Gold Bearing Solutions. One or two points bearing on tliis discussion might be first noted : — (1) The close association of the c^uartz veins with the dyke sug- gests strongly some genetic relationship between them. (2) The nature of the minerals formed in the dyke due to the alteration. These minerals have been shown ;ii)ove to be those that are formed by juvenile solutions rather than by vadose ones. Pyrite, for instance, is generally decomposed by the vadose waters, but is frequently formed by either upwai-d or downward moving thermal waters. (o) Assays of the pyrites and of the dyke have been made at various times to see whether it would jjay to treat the proposition as a low grade one. Very little gold was found to occur in the pyrites, and still less in the dyke. It might be suggested tliat tlie gold originally occurred disseminated through tlie dyke, and that it was transferred to the veins by a jjrocess of lateral secretion. The assays shov.'. iiowevei', very little guld in the dyke away from the mineral veins, and such a transference as suggested above dovs not seem likely to have occurred. The presence of stibnite in both the dyke and in tlie (piai'tz veins suggests that tlie solutions which caused the alteration of the dyk(?, and those which introduced the gold were of similar origin. The fact that the Dry Creek 'dyke, wliicli has l)een very little altered, contains very little gold, ^ issti'ong evidence in support of the view that the solutions which brought the gold into its present position were a final phase of the same solutions that caused the alteration of the dyke. The writer pic- 1 Cf. Oregon . Memoir Oeol. Siirv. Vict., No. 3, IftO.T, j>. lU. 350 N. Ji. JiDiner: tures tile following sequeuc-e : — Tlie quartz porphyry was intruded t'roni some magma, probably at considerable distance below the then surface, along a plane of weakness, namely, the zone of breccia- tion. After sulidiheatinn, and probably while the dyke was still hot, alkaline sulphide solutions Avere introduced along fissures in the dyke, and these caused the extensive propylitisation. Finally, the gold stibnite and (piarlz were introduced througli the same or en- larged fissures. Contrasted with the above alteration, is the effect of the present day vadose circulation. Pyrites is dissolved from the dyke, and from the brecciated fault zones, and becomes oxidised, and is redei^osited in the lower levels of the mine as hydrated iron oxide. In abandoned and little-used Workings, as in the 'Uiiion mine, long needles and hair-like crystals of epsomite are abundant. Green vitriol (Fe SO^. 7 H^-O), also frequently occurs, due to the oxidation of the pyrites. Where Avater has percolated down the hanging wall of the dyke, considerable altei'ation of the dyke to a clayey material, largely kaolin, has occiured. 10. ^Additional Features. Locahsaf/on of values, evidence of secondnri/ eiiriclinicnf , etc. Owing to the rather limited stud}' of the occurrence of the gold, the writer being largely concerned with the then working levels, namely, the two bottoiu ones and the uppermost one, sufficient data were not gained for the fixing of pay shoots of gold, although there is little doubt that they do exist. According to evidence that the Avriter has gained from the officials at the mine, there appear to be two main shoots. 1. North hanging wall or wliiiu shoot. 2. South footwall shoot. Of these two shoots, the northern one is the richer, and is more well defined lliaii the soutlierii one. They both pitch to the north, tlie nortli one at a very steep angle, and the south one at about 45 deg., so that they incline towards one another, and in the 700 feet level the two shoots are only 70 feet apart. The lengtli of the shoots appears to be fairly uniform, and about ^TiO feet. With respect to the cause of the shoots, the evidence is largely of a nega- tive character. Mi-. Dunn,i in his examination of the Union mine, was inclined to think that the shoots were due to the selective infiuence of certain bands of the country roclv. Appearances at the mine point against this, however. The best values occur when 1 hiiiiii. <))). ('it. Gcoiotjij of the Diamond Creek Area. 351 the reefs are within the ilykc. When tlie reefs wander out intu the slate or breccia, iiu nutieoable increase in values utxurs, an(.l, in fact, lu sucli cases there seems to be ratiier a uecrease in values. The ett'ect of the " diagonal "^ veins. Bedded reefs are loniniun at the mine, but their effect, if any, on the gold values is not rlear. A very interesting case of local enrichment occurs in the oOU feet level north near the intersection of the dyke, with the nearly verliial shale reef before mentioned. Here a very rich pocket of gold oc- curred in the very fractured dyke. This fracturing in parts ap- pears to antedate the formation of the quartz veins, as no definite reefs exist here, the dyke being simply veined by numerous very rich stringers of quartz. Three possibilities exist for the localisation of the gold at this point : — 1. Action of the shale reef. 2. Effect of pre-existing fractures. 3. Secondary enrichment. The first effect may probably be omitted, for the same leason that the effect of certain bands of tlie country is out of question. A section was made of the ore from here, and it was seen that the gold and stibnite were intimately associated, although botii were .secondary in relation to the quartz. The stibnite was seen to con- sist of agg)'egates of needles, and not to be like the usual secondary sulphides that occur in some mineral helds, such as Bi-oken Hill, near the water level. Very little information could be gained regarding the character and value of the ore above the -{OO feet level at the mine, as tliis was worked in the early days of the fii-ld. No great variation in values, as far as could be learned, oci-urred in going down from the surface. The evidence appears insuthcient to justify us drawing any extensive conclusions witli regard to secondary enrirlnnent. The presence of senarniontite in the lower levels does not necessarily mean that the zone of oxidation reached that depth, but probably that sueh ore was near fractures irn, and the various officials of the mine for their kind co-operation in the woik. Proc. K.S. Victoria, WV-i. Plate XXV LEGEND Seel-] on along line A-a-c Shaped LoNGiTUDiMAL Section of mine Transverse Section Froc. U.S. Victoria, 19l:i. I'late XXVI. 4 .^v,.. 4 ®' Geology of the Diamond Creek Area. 353 EXPLANATION OF PLATES. Plate XXV. Geological sketch map of the Diamond Creek area; the alluviuin of the Yarra not shown ; also longitudinal and transverse sec- tions at the Diamond Creek mine. The longitudinal section is published by permission of Mr. Christian. Plate XXVL Fig. 1. Photomicrograph of the fine-grained basalt analysed, x 25, ordinary light, with a felspar phenocryst in the field of view. Fig. 2. Photomicrograph of the breccia, Diamond Creek mine, x 8, ordinary light, S = sandstone, SI = slate, C = calcite, Sh = shale. Secondary quartz and calcite veins intersect the rock. Fig. 3. Microphotograph of a gold-bearing dyke vein, x 25, ordinary light, showing the contemporaneous origin of the gold, quartz and .stibnite. Q = quartz, G = gold, S := stibnite, P = pyrite, Se = senarmontite, D = dyke. tig 4. Microphotograi^h of gold-bearing quartz from the -300 feet level of the Diamond Creek mine, x 25, ordinary light. The secondary character of the ffold is well shown. [Proc. Rot. Soc. Victoria, 25 (N.S.), Pt. II., 1913.] Art. XXVI. — A New Variety of Volute from Western Australia. By AGNES F. KENYON. [Read 12th December, 1912]. Voluta nivosa, var. coxi. Shell, dull red colour. This dullness may be owing to being a dead specimen ; ovately oblong, spire short, lower whorls noduled, upper whorls slanting from apex and noduled. These are almost obscure when touching body whorl at an angle. Columella four plaited, snowflake marking large on body whorl, and in most respects resembling original description of V . nivosa. The differ- ences consist in the largeness of the size, difference of colour, and the tuberculation of the whorls, also colouring of interior, which is lemon colour merging into orange. Greatest length. 5 inches. Greatest breadth, 2 inches. Greatest circumference, 6^ inches. Locality. — Garden Island, W.A. There are now several varieties of V . nivosa, but in colouration and form the most remarkable of these varieties is the recently de- scribed var. irviniana of E. A. Smith, owing to its coronal spikes, whereas V . coxi, although of the same ruddy hue, has reverted to the original shape of V . nivosa as described by Lamarck, but is of iiiucli larger size. The specimen now described is from the collection of Mrs. J. F. Irvine, Evandale, Tasmania, and is named as a tribute to the late Dr. J. C. Cox, of Sydney, whose lamented death is a great loss to the scientific world. [Proc. Roy. Soc. Victoria, 25 (N.S.), Pt. IT., 1913.] Art. XXV II. — Further Descriptions oj the Tertiary Polyzoa of Victoria, Part XII. By C. M. MAPLESTONE. (With Plate XXVII.). [Read 12th December, 1912]. Stpongylopopa concinna, n.s. (Plate XXVIT., Fig. 1). Zooecium oviform, witli six marginal fenestrae. Avicularia in distal angles. Thyrostonie arched above; margins raised, Tvith a sinus in the proximal one. Ooecium large, ventricose, adnate on distal zooecium; with a rai.sed median longitudinal ridge; aperture large, arched above. Locolitjf. — Geelong (J. F. Muldei). A single specimen, consisting of three zooecia and an ooecium; the proximal zooecium is imperfect, the front wall is broken away; in the lateral one the lower margin of the thyrostonie is imperfect; the distal one has the thyrostome perfect, and the ooecium extendi over the fi'ont wall nearly up to the thyrostome. Stpophlpopa episcopalis, n..s. (Plate XXVTI., Fig. 2). Ooecium oblong, ventricose. Front surface with a subtriangular or mitriform depressed area surrounded by raised margins and a round perforation with a raised margin at the apex. Aperture large, with raised margins, arched above; lower margin somewhat irregular, Avith a ridge extending from the centre to the base, and dividing into two parts a depressed area in which are several minute perforations: an elevated transverse ridge separates this area from two lateral depressed areas. On one side of i\w ooecium, near the distal end, outside the mitriform area, are a few .small perforations. Localiii/. — Geelong (J. F. Mulder). A single specimen. I place this in Strophipora on account of its resemblance to S. triangularis. 22a 356 C. M. Maplestone : Tertiary Polyzoa, Pt. XII. Strophipopa clubia, n.s. (Plate XXVII., Ki^^. 4). Ooeciuin subtriuugular, elongated, broad at the base, with pro- jeetiiig angles, above which is a sub-globose area, with poi-es (or fenestrae), having slits distally converging towards the centre. An aviculariuni at eacli distal angle. Ajjerture brdad, distal and proximal margins arcuate, proximal one with a siiiail sinus in the centre, proximal to Avhich is a broadly cordate de^jressed area with a quadrate projection from the lower margin ; on each side of which is a small oval depressed area. Localitij. — Geelong (J. F. Mulder). A single specimen, which, although it is difficult to assign it definitely to Stropliipora, is sufficiently distinctive to warrant its- description, and to place it tentatively in that genus. Catenicella rugosa, n.s. (Plate XXVII., Fig. 3). Ooecium pyriform, broad end proximal, surface rugose : a round- elevation on the distal end. Aperture broad, arched above, lower margin slightly curved and projecting over the aperture. Locality. — Geelong (J. F. Mulder). A single specimen, not very well preserved, but distinct from any other sjiecies. Cabepea pedunculata, nom. nov. I'rom Mr. R. Henry Walcott, of the National Museum, I have rec-eived a note made by Mr. Chapman, Palaeontologist to the Museum, that a species of fossil polyzoa, which I described in 1911 (Proc. Roy. Soc, Victoria, vol. xxiii. (New Series), p. 271), under the name of Caberea morninytoniensis, was apparently dift'erent from one which I described under the same name in VMM) (ibid., vol. xii., !>. 164). Tlie species are quite distinct, and the use of the same name in the later case was the result of my having for- gotten that I had used it before; consecpiently a new name is re- quired for the species described in 1911. I have therefore re-named that species Caherea peclu'iiculata. Caberea pedunculata, nom. nov. = C. morriingfoiiiensis, Proc. Roy. Soc, Vict., vol. xxiii. (New Series), p. 271, no/i C. nior/u'in/tonicn.^hs, ibid., vol. xii. (Ncav Series), p. 164. Proc. R.S. Victoria, 191:^ Plate XXVII. '^ ^mki 'k^^^ ■vv- '.'iV^' m /^'^''""■^x 3 f- [I'ROC. Roy. Soc. Viotoria, 25 (N.S.), Pt. II., 1913."] Art. XX VIII. — New or UtUe-knovn Polyzoa. JBy C. Af. MAPLESTONE. (With Plate XXVIII.). TKead 12tli December, l!tT2]. Digenopora latissima, u. .sp. (Pi. XXVIII., Fig. 1). Some few years ago, in the course of my examination of my slides of itrent polyzoa, to compare with the fossil forms upon which I Avas working, I discovered a new species of Diyeno- 2>(>ra (a genus of the family of Cuteuicellidae, described by me in Part II. of " Further Descriptions of the Tertiary Polyzoa of Vic- toria "), whicii 1 found at Williamstown in 1869, and labelled it CoteiiicfUd lutatdia, overlooking the two sets of fenestrae. Ten years afterwards I found it living at Portland, and hgured it in my paper to the Society on " Observations on Living Polyzoa," in 1881, and in that figure the two sets of fenestrae are indicated in one zooecium; but as the drawing was made specially to show only the pigment cells in the ectocyst, other details being omitted, their significance was again overlooked. Unfortunately. I have only the specimen mounted at Williamstown. Zooecia oval ; lateral processes very wide and flat, with numerous minute perforations or semi-globose elevations. Inner set of fenestrae, seven ; i)yriform. imperforate, in a scutiform area; outer set seven round elevations, submarginal; avicularia recessed, very small, on a level with the proximal lip of the thyrostome ; thvrostome arched a1x)ve, straight below with a very small irregular sinus in the lower margin. Ooeciuuf globose, surmounted bv a truncate conical process, a shallow oval depression sun-ounded bv a raised border on each side on the upper part; an irregular reniform, slightly raised area on each side of the apertui'e; a small vertical oval opening in the centre; apt^rturt- very large and broad, lower margin, with a sharp sinus in the centre ; five large oval perforations in a curve lielow and three small fenestrae underneath the sinus. Lorolit!/. — Williamstown and Portland. The colour of the zoarium when living is orange. Init the zooecia are moi'e or less spotted with purple or dark green pigment cells the greater or less abundance of which cause it to appeal' of various shades, from orange to ])urple and dark greenish grey. 358 0. M. Mapledone : The inner fenestrae are very slightly raised pyrifonn areas, not always well defined, and might be easily overlooked, but the scuti- form area is always present, though the boundaries of individual fenestrae are often indiscernible. In the fossil JJ. ro/npta they are conspicuous, as the ectocyst is not preserved, and tliey show as perforations. This epecies is the only living representative of the genus. Schizopopella baccata, n. sp. (PI. XXVI FT., Figs. 2, 2a). Zooecia undefined; surface granulose; with numerous subconical umbonate processes upon them; most of those near the margin of the zoarium and in the vicinity of the ooecia are furnished with avicularia which have straight ligulate mandibles, incurved at the distal end. Thyrostome large, arched above with a very broad curved sinus in the proximal margin. Ooecia globose, surface granulose, with a prominent conical umbo on the summit. Locality. — Po rtl and . This is a very distinct species. The zoarium is orange coloured. The umbonate processes on the zooecia in the central portion of the zoarium bears no avicularia. The portion figured shows two perfect ooecia; on another portion of the margin of the zoarium are numerous ooecia in an incompleted state. Fig. 2a is an out- line sketch of one. Schizopopella complanata, n. sp. (PI. XXVIIL, Fig. 3). Zoarium encrusting, zooecia oval, slightly ventricose. Thyros- tome arched above with large rounded sinus in the proximal mar- gin. xVvicularian cells very large, Ooecia (?). Localiti/.—Voitland. This species is characterised by the very large, almost flat, avicu- larian cells which cover the whole surface of the zooecia; at the distal end of them there is a ventricose process, with a variously denticulated margin, and within which is an acute mandible open- ing upwards. These large avicularian cells completely conceal the thyrostome in almost every case, and in the specimen figured it is seen in only one zooecium, in which the avicularium is absent. Mucronella ovifera, n. sp. (PI. XXV J II., Fig. +). Zoarium encrusting, zooecia undefined. Thyrostome auborbicu- lar, with a broad ligula in the proximal margin. Avicularian cells ovoid, enormous, concealing almost the wliole surface of the zooecia and bearing broad semi-elliptical avivularia. Localtti/. — Portland. Netu or Little-knotvn Polyzoa. 359 The groat distiuj^aiishinp: feature of this species is the enormous ovoid avicularian cells, which are sometimes " twinned." They cover nearly the whole surface, only a small y)Oi-tion of which can be seen, not sufficient to allow of the dctoniiination of the form. The distal basal margins of the avicularian cells overhang, and partially hide the proximal margins of some of the thyrostomes. Dimorphocella portmarina, n. sp. (PI. XXVTTL, Fig. 5). Zoarium erect, ttabellate, bilaminate, zooecia of two forms, subtle and angular, elongated; margins raised; surface granular; a row of pores round the margins. Thyrostome of smaller zooecia trans- versely sub-elliptical, with distal margins more curved than the proximal. Thyrostome of larger zooecia transversely elongated, proximal margin sometimes slightly incurved; an ovoid avicu- larium, with an acute triangular mandible, in the centre of the frontal wall in both kinds. The larger zooecia are more or less covered with mammillated nodules. Smaller zooecia 0.4 to 0.5 mm. long; 0.2 to 0..3 mm. wide. Larger zooecia 0.6 to 0.8 mm. long; 0.4 to 0.5 mm. wide. Locality . — Portsea . A single specimen, about 12 mm. in diameter. This species be- longs to the genus DimorphoceUa, which I, in Proc. Roy. Soc, Vict.. Vol. XVI. n.s. Pt. 1. p. 340, established to include D. pi/riformis and D. triton, McG. sp., found in our tertiary deposits. The larger zooecia are present, either singly or in groups, upon both surfaces of the zoarium. All the^ zooecia are somewhat irre- gular in shape; in the smaller form tlie marginal row of pores is very regular, but in the larger form they are sometimes obscured by the mammillated nodules. The oval avicularium is constantly present in both forms, and in the portion illustrated one of them is reversed; the mandible pointing proximally instead of distally The following is a description of a very interesting form, from Disaster Bay, N.S.W., given to me by Mr. C. J. Gabriel. Selenariopsis, n. gen. Zoarium dome-shaped. Zooecia quadrate in a single layer, and in radial series. Ooecia and avicularia present. No vibracula. Selenariopsis gabr'lell, n. sp. (PI. XXVTIL, Figs, 6, 7, 8, 9, 10). Zoarium a hemispherical dome, 5 mm. in diameter, 2.5 mm. hig:h. Zooecia radially arranged in straight rows, quadrate or sub-quad- 360 C. M. Maptestone: rate in t'orni, smooth with slightly raised and faintly sinuous margins. Thyrostomes oval, ooecia somewhat larger than the zooe- cia, with a broad aperture below two smaller ones on the front wall. Avicularian cells quadrate, with a large, somewhat hour- glass shaped cavity. In the basal walls of the zooecia there is a large aperture, and there is also an aperture on the side walls of the zooecia. Locality. — Disaster Bay, N.S.W. (C. J. Gabriel;. A single specimen. This is a very peculiar form; it is allied to Sele/iaria, and, in the radial and linear disposition of the zooecia, to Lunulites. It is a hemispherical dome (a small portion of which is broken away), composed of a single layer of zooecia arranged in radial lines, inter- calating towards the margin. The thyrostomes are oval, but some- what i regular in form. The ooecia have a large, broadly oval aper- ture, with two smaller ones above. The basal walls have a large aperture, and there is also a smaller one in the side walls of the zooecia, through which probably living tissue, connecting the occu- pants of the adjoining zooecia, extended, It differs from Selenana in having large avicularia, but not vibracula, and the ooecia are on the same level as, and in series with, the zooecia, not exterior as in Seleiiar/a, and by the zooecia being clearly defined on the basal surface. Owing to the irregularity in the shape of the thyrostomes, and in tlie presence of the large aperture in the basal wall, and also the absence of the opercula of the thyrostomes and the mandibles of the avicularia, I am of dpinion that the specimen exhibits the internal calcareous structure only, and that in life it had an ecto- cyst covering it entirely on both basal and upper surface in or upon which were the true thyrostomes with their opercula, also the mandibles of the avicularia, and that it covered the basal surface, and the large aperture in the basal wall of the zooecia, which is such a conspicuous feature, and which must have had a covering of some kind. Consequently, if living, or perfect, specimens be found, it will be necessarj' to modify the description, but there is no doubt that its structure abundantly justifies the establishment of a new genus for its reception. Parmulapia obliqua. (PI. XXVTTI., Fig. 11). A new form fiom West Australia. The specimens of I'annularia obliqtia, from the Soutli Australian coast, to which I alluded in my " Observations on I'armiiUiria iVew or Liltl(.'-knoiVH Poli/zoa. ^61 obliqua and a I'ussil species" (I'loc. Ivoy. Soc, Vict., Vol. XXIII. (new series), p. 42), are aliaost always symmetrical in furni; in the adult stage kidney shaped; in the younger forms they are either fan-shaped, with (.l)tusely crenate edges, or are palmate. i have lately received from Dr. Verco, of Adelaide, some speci- mens which he dredged in King (Jeoi-ge's Sound, West Australia, which are extremely asymmetrical and sometimes very much lobed, almost digitate in some cases. 1 have drawn several of the zoaria, half natural size, and it will be seen that there is great dissimilarity in the forms. I can detect no difference whatever in the zooecia from tln»se in South Australian form, but as the zoarial character is so different, the specimens from West Australia must be considered a distinct variety, for which 1 piopose the name " Farmuho'ia ohilqiia var. lohata. In the South Australian form the zoaria do not bear ooecia until they arrive at the adult stage, and they they are always on, or near the outer margin of the zoarium, but in West Australian form one specimen (marked "A ") bears a few ooecia in a curved transverse row in the centra' i)ortion of the zoarium. Variable forms of Celiepora fossa (Harwell sp.). 1 think the variations in the form of the zoaria of this species worthy of notice, as from a casual examination of the specimens no one would think they Iselonged t<> tlie same species. The form from Avhich Prol. llaswell originally described the species, under the generic name of Spliaerojmra, is " subspherical, slightly depressed. ' ' Among the polyzoa, drc'dged by Dr. Verco in South Austialian waters, sent to the late J. Dennant, and which I examined some years ago, there were two different forms. One w^as circular, thick, slightly raised in the centre, with rounded edges (bun-shaped), and on the under surface (chiefly in an annular area near the edge of the zoarium), there were numerous small conical pits, which descend to a consideralile distance into the zoarium. These pits are formed by a small parasitic "actinid." The upper surface of the larger specimens was mammillated, but in the smaller ones was not. The zooecia on the edges of the zoarium have the umbon- ate process, which bears a semi-iiicular aviculaiium, produced into a blunt conical pioeess. Tiiis form grows to a very large size, some l:)eing over an iiuii in diameter. The other foini was oval, oi- latlier ellipsoidal, smooth, with a deep conical pit at one end. 23 362 G. M. Maplestone: New or Little-known Polyzoa. Another very different form occurred in some material dredged off the coasts of New South Wales. It was spindle, or cigar-shaped, with a very irregular, nodular surface. It was 3 cm. long, 7 mm. wide at the truncated end; tapering to a rounded point at the other end. It had a single conical pit in the truncated end of a larger size than those in the other specimens, but evidently caused in a similar way. EXPLANATION OF PLATE. Fig. 1. — Digenopora latissima, x 30. Fig. la.- — Do. do. do., ooecium, x 30. Fig. 2. — Schizoporella bacata, x 24. Fig. 2a. — Do. do. incomplete ooecium, x 24. Fig. 3, — Do. complanata, x 24. Fig. 4. — Mucronella ovifera. x 24. Fig. 5. — Dimorphocella portmarina, x 24. Fig. 6. — Selenariopsis gabrieli, portion of zoarium, x 5. Fig. 7. — Do. do. section of zoarium, x 20. Fig. 8. — Do. do. basal surface of zooecia, x 20. "o " do. do. of ooecium, x 30. Fig. 9. — Do. do. upper sui-face of zooecia, x 20. " o " do. do. of ooecium, x 20. Fig. 10. — Do. do. upper surface of zooecia, x 20. " a " avicularian cell " o " ooecium Fig. 11. — Parmularia obliqua var. lobata various forms of zoaria, nat. size. " a " zoarium, with ooecia. Proc. R.S. Victniia. I'M;!. I'lnfr X'W'IM. >■ mrnmrn ^^?u [Pkoc. Roy. Soc. Victoria, 25 (N.S.), I't. II-, li)13.] Art. XXIX. — On a New SUurlan Bivalve from the Lilydale Quarries, Liteind. (Probicina) mifcludli. By G. B. PRITCHARI), D.Sc, F.d.S. (Lectiuvr in lieology, &c., School of Mines Departmeut, Working? Meu's College, Melbourne). (With Plate XXIX.). [Read 12th December, 1912.] Lilydale is a well known locality for well-preserved fossils of very high antiquity, namely, silurian, and the Cave Hill Quarries have been yielding up their treasures to diligent searchers for quite a number of years. A glance at the list of fossils from this locality will, however, show that we have at present rather a scanty knowledge of its bivalved molluscan fauna, as the record includes only six species. Any additional information should therefore be of some interest and value, and it is with pleasure that I now make the record of a new sj^ecies. During a recent visit to the Cave Hill Quarries, my assistant, Mr. Stanley R. Mitchell, had the good fortune to discover a very fine and perfect specimen of a large bivalve, which evidently belongs to the family Lucinidae. This specimen he has very kindly placed in my hands for description, and I take this opportunity of tender- ing him my thanks and of naming the species after him. Lucina (Prolucina) mitchelli, sp. nov. Dcsm pfion. — Shell orbicular, tumid, beak small, depressed, con- vexly rounded and situated at about one-third of the diameter fiom the anterior margin; lunulc narrowly cordate, very small but dis- tinct. Anterior margin regularly convexly rounded, from the lunule to the ventral margin, the latter becoming distinctly straighter as it reaches up to the posterior margin; posterior truncation makes an obtusely angular junction with the ventral margin of about 110 degrees, and runs obliquely upwards to join the convex posterior dorsal margin. Tlie shell sliows its greatest tumidity slightly to ■23a 364 G. B. Pritchard : New Slhiriaii Hiralrc. the front of its centre line uniljo-venti-ally, hut liveonics notably flattened towards the anterior margin as well as towards the pos- terior keel. Posterior keel only faintly defined iiiuljunally, but rapidly increasing in strength posteriorly, till it foinis an excep- tionally strong ridge margining the depressed posterioi- area. Shell surface finely concentrically sculptured, running about three ridges in two millimetres in the middle region, apparently raised into slight frills on the posterior keel; the frills are strongest post-ven- trally, l)ut tlie preservation of the specimen is not so perfect as to fully show the original extent of this feature. No radial marking is aj)i:)arent. Interior of valve deeply concave umbonally and running out shallower towards the ventral margin, which is bevelled off to a general acute edge, with a suspicion of faint denticulation. The hinge has been cleared of matrix, but the cardinal teeth are evidently obsolete; there is a faint suspicion of an anterior lateral tooth, whilst to the posterior a broad shallow area for the reception of the internal ligament is margined by an elongated nariow ridge. Anterior adductor muscular scar very large, f)vate. and showing a distinct and elevated callous rim towards the ventral margin, callous failing out dorsally. Posterior adductor muscular scar much smaller, narrowly elongate and margined anteriorly with a strong callous ridge. Pallial line entire and narrow. Internally there is some evidence of a radial structure wliiih jxobably gave rise to a slight denticulation of the ventral margin, but this is not very distinctly preserved in the present specimen. Dimensio7}s. — Antero-posterior diameter, G8 mm. ; und)o-venti-al diameter, fi2 mm.; greatest thickness through one valve. 15 mm.; thickness of shell about 2 mm. Locdlifl/. — Cave Hill Quarries, Lilydale. Siliiii.in limestiuie fauna. Collected by S. H. Mitchell. 1 desire to express my best thanks to Mr. L. Knibhs for the ])hotogra})hs which illustrate this shell. EXPLAN.\T10X OF PL.VTK .\X1X. Fig. 1. E.xteriial view of valve, about two-thirds natural size. Fig. 2. internal vIcav of valve, about two-thirds natural si/.e. Fig. 3. Unibonal aspect, a little less than natuial size. Proc. R.S. Victoria, 1913. Plate XXIX. ANNUAL REPORT OF THE COUNCIE FOE THK YEAR, ]ill2. The ('ouiicil herewith presents to Members and Associates of the Society the Annual Keisort and Details of Receii^ts and Expenditure for the year 1912. March llth. — Papers read: (1) '"Esperanto and Science," by Dr. W. T. Kendall; (2) " Oi, tlie Introduction of the Cattle-tick Fever into Australia," by Piofessor J. A. Gilruth, D.V.Sc, etc.; (3) " Further Observations on Onchocercus gibsoni, the Cause of Worm Nodules in Cattle, "" by Professor J. A. Gilruth and Di-. Georgina Sweet. April 11th. — Papers read: (1) "Australian and Tasmanian Coleoptera Inhaljiting oi- Resorting to the Nests of Ants, Bees and Termites""; Supplement, by A. M. Lea; (2) "On a New Chirido- tinid of the nisideniana near Melbourne," bv 366 Prori't'di ng.s of the Roijal Socieiij of Victoria. lloyston Drew (\ictoriaii Research Scholar), Heber (Ireen, and P. K. H. St. John. Mr. Gabriel showed the two species of Ischnochton described by Mr. Hull; Messrs. Gatliff and Gabriel, Chairman and Drew, Green and St. John showed specimens illustrating their papers. Mr. T. (jritfith Taylor exhibited and spoke on rock speci- mens from Antarctica. August 8th. — Papers read : " On the Cross-Inoculation of rlie ]loot-tubercle Bacteria upon Native and the Cultivated Legu- minosae," by Professor A. J. Ewart, D.Sc, and Norman Thomson B.Ag.Sc. Mr. A. J. Higgin .showed a Leitz metallographic micro scope; Dr. Hall, by permission of the Director of the Geological .Survey, show'ed a Parkes-Lapworth microscope, and also teeth of Nototherium tasmanicum from Tasmania, lent by Mr. T. Stepliens. Prof. Skeats showed an alkaline rock from Macedon, which indi- cated the way in which " buckshot gravel " could originate. Dr. Payne Philpots showed aboriginal jaws which gave evidence of great wear and of the absence of dental caries. September 12th. — Paper read : " Paralysis in Horses and Cows due to the Ingestion of Fodder," by Dr. J. A. Gilruth, M.R.C.V.S. Mr. J. J. Fenton exhibited a dioptreuieter. Mr. F. Chapman showed marble froni Buchan, such as is being used in the new reading-room at the Public Library. October 10th. — Papers read : (1) " The Anatomy of Two Aus- tralian Land Snails, Paryphanta atramentavia, Shuttleworth, and P. compacta, Cox and Hedley, by Olive B. Davies, B.Sc. ; (2) " The Correlation or Size of Head and Intelligence, as Estimated from the Cubic Capacity of Brain of 355 Melbourne Criminals," by Pro- fessor R. J. A. Berry and L. W. G. Biichuer. Prof. Ewart showed the seed of Caesalpinia sp., a native of Queensland, said to liave come from the Otway Forest. Noveniber 14th. — Lecture: "Rock Paintings and Carvings in South Africa," by J. L. Elmore, M.D. Papers read : (1) " On the Country between Melbourne and the Dandenong Creek," by T. S. Hart, M.A., F.G.S.; (2) "The Correlation of Size of Head and Intelligence, as Estimated from the Cubic Capacity of Brain of Thirty-three Melbourne Criminals Hanged for Murdei," by Pro- fessor R. J. A. Berry and L. W. G. Blichner. December 12th. — Papers read: (1) "Parasitic llyiiicn(>i)teia of Victoria," by P. Cameron (coinnniiiicated ])y J. A. Kershaw); (2) " The Syiinx of the Common Fowl ; Its Structure and Develop- ment," l)y A. O. V. Tymms (Goveinment Research Scholar); (3) " The Viscosity of Croani," 1)V l^'ranccs K. M. Duinarosq. M.A., Froceedimp of the. Royal Socldi/ of Victoria. 367 B.Sc. (communicated by Prof. W. A. Osborne); (4) "The General and Mining Geology of the Diamond Creek Area," by Norman R. Junner (Kernot Research Scholar); (5) " A New Variety of Volute from Western Australia (Voluta nivosa, var. coxi), by Agnes F. Kenyon; (6) " Further Descriptions of the Tertiary Polyzoa of Vic- toria," Part XII., by C. M. Maplestone ; (7) " New or Little-known Polyzoa," by C. M. Maplestone. Mrs. Kenyon showed specimens of Voluta in illustration of her paper, also siliceous sinter from the Pink and Wliite Terraces of Rotomaliana. Mr. Junner showed rocks from tlie Diamond Creek District. During the year 4 members, 1 country member, and 6 associates t\"ere elected. Two life members who served the Society well in its early days, namely. Mr. H. F. Eaton and Mr. J. S. Butters, have died. "S\v. IJurter.s \v;is one of the founders of the Society and an occasional attendant at meetings till a few months before his death. One member, 1 count iv member, and 1 associate resigned, and the names of two associates who were non-tinancial were ronoved from the lists. The Proceedings, Vol. XXIV., Pt. 2, and Vol. XXV., Pt. 1, were published during the year. The Committee of the National Park, Wilson's Promontory, has erected a cottage at Barry's Hill, for a second ranger, who was appointed in December. A cottage for the accommodation of the Committee and a rest-house for tourists were erected at the Derby River. A rest-house was put up at the Beehives, and the pier, at the same place, was moved to a better position. A track to Sealers' Cove was marked by an officer of the Public Works Department, and work on it will be begun. Several new animals were intro- duced, and most appear to be doing well. The Librarian reports the addition of 1925 volumes and parts during the year. A large number of copies of Brough Smythe's "Australian Aborigines," Baron von Mueller's "Iconography of the Acacias," and Neumayer's " Meteorological Observation," were received from tlie Government Printer. The storage of this mate- rial and of the Library is a more acute problem than ever, and the question of additions to the building should be faced as soon as possible. 368 Proceedings of the Royol Society of Victoria. s ^ f; -r cc X -.r o ■^) c -5 t -1 rPrr: Cn. o 03 ^ S ce 2 5 1c i; ^ =)-( ->^ o * 35 o o -M 1- 5i 1 »Q ^ 1 a . ^ .2 a ^ ^4— ^ « '5? S^ '-0 rH «-.! S 1^ ...- ^1= S.2 -^ 1 6 O s m M M C C M 3j ,^ r-' ce — . ^, -<.2 Sf5 rC — c .p" ^ S mc2 a1 _5 a 1 1 II ^-^ 0) o a. P4 o^ a; 3 orictn of Victoria. 1912. Jjatron : SIR JOHN KLILLEK, HART., K.C.M.G. IJrcsttii'ut : J. .siip:phai;i>. PROF. R. .J. A. BERRY, M.D., F.R.C.S., F.R.S.E. T. .S. HAIJ., .M.A , D.SC. 3ijou iLlC.lSUll'l- : W. A. HARTNELL. ^Ott. ICibiavhiiv : R. D. BOY.S B.A. T. S. HALL, M.A., D.Sc. (Council : p. BARACCHI, F.R.A.S. E. J. DUNN, F.G.S. P. DK J. GRUT. J. .IAMIE.SON, M.D. .1. A. KERSHAW, F.E.S. PROF. W. A. OSBORNE, .\I.H., h.Sc. PROF. E W. SKEATS. D.Sc. W. STAPLEV, M.D., D.V.Sc. G. SWEET, F.(;.S. R. H. WALOOTT, F.G.S. E. .1. WHITE, F.R.A.S. F. WISEWOI'LD. 24 (?^ommittffs of tijf Council j!l)0U3f (Tominittrr THE HON. TREASURER (Convkxer). P. DE J. GRUT. G SWEET, F.G.S. JJiiuting (Committee: THE HON. TREASURER. PROF. R. J. A. BERRY, M.U., F.U.S.E. ^jonor.uM.t jKubitovs : J. E. GILBERT. J. A. SMITH. ^ioncir.ui) Architect \V. A. M. BLACKETT. Iffrnstccs : p. BARACCHI. K.R.A.S PROF. W. BALDWIN SPENCER, C.M.G., M.A., K.R.S. E. J. WHITE, F.R.A.S. 1912. L I S T O F M E M B E R S WITH THEIR YEAR OF JOINING. Patrons. His Excullcney Sir John Fuller, Bart., K.C.M.G 1011 Honorary Members. Forrest, The Hon. Sir J., K.C.M.G., West Australia ... 1888 Liversidge, Professor A.. LL.D., F.R.S., Hornton-street, 1892 Kensington, Lond. Scott, Rev. W., M.A., Kurrajong Heights, N.S.W ISbo Verbeek, Dr. R. D. M., Speelmanstraat 19, .sXTi-aven- 188(1 hagf, Holland. Life Members. Butters, J. S., F.R.G.S 186U Fowler, Thos. W., M.C.E., Colonial Mutual Ch., 421 Col- 1879 lins-street, Melb. Gibbons, Sydney, F.C.S., 31 Gipps-street, East Melb. 185i ■Gilbert. J. E., "Melrose," Glenferrie-road, Kew. Vic. ... 1872 Gregory, Prof. J. W., D.Sc, F.R.S., University, 1900 Glasgow. Love, E. F. J.. M.A., D.Sc, F.R.A.S., Moreland Grove, 1888 Morel and Nicholas, William. F.G.S 1864 Selby, G. W., 99 Queen-street. Melb (881 Smith. W. Howard, " Moreton,"' Esplanade. St. Kiida . 1911 White. E. J.. F.R.A.S., Observatory. Melb 18(;8 Ordinary Members. Anderson, J. H., M.B., B.S., Woodend, Vic 19 versity, Melb. Boys, R. D., B.A., Public Library, Melbourne 1903 Brittlebank, C. C, " Queensgate,"' St. George's-road, 1898 Elsternwick Broome, G. H., State Coal Mine, Wonthaggi 1911 Cameron, S. S., D.V.Sc, Agricultural Dept., Melb 1910 Cherry, T., M.D., M.S., Cni versity, Melbourne 1893 Dunn, E. J., F.G.S., " Roseneath." Pakington-street, Kew, 1893 Vic. Esvart, Prof. A. J., D.Sc, Pli.D, F.L.S., University, IVEell). 1906 Fryett, A. G., care Dr. F. Bird, Spring-street, Melb. ... 19tK) Gault, Dr. E. L., M.A., M.B., B.S., Collins-street, Melb. 1899 Gillott, The Hon. Sir S., K.C.M.G.., " Edensor," Bruns- 1905 wick-street, Fitzroy, Vic. Gihuth, His i:xcellency Dr. J. A., D.V.Sc. i9();> M.R.C.V.S., F.R.S.E., Darwin, Northern Ter- ritory. Giimwade. \V. R., B.Sc, 335 Spencer-street, Melb. ... 1912 Grut, P. de Jersey, F.R.Met.S., 29 Kensington-road, 19(»1 South Yarra. Hake, C. N., F.C.S 1890 Hall, T. S., M.A., D.Sc. University, Melb 1890 Hartnell, W. A., '■ Irrewarra." Burke-road, Cauiborwell, 1900 Vic. Harvey, J. H., A.R.V.I.A., 128 Powlett-street, East Melb. 1895 Hig-iii, A. J., University. Melb 1912 Jauiieson. Jiimes, M.D., 12 M.-ilvcrn Ku.id, 'I'oor.-ik. ... 1877 Kelly, Bowes, 70 Queen-street, Melb 1910 Kendall, K. A., d:. M. V.C., " Conislcn," Esplauad.', M itldic UUO Brii,dH(.ii Kendall, W. T., D.V.Sc, M.K.C.V.S., 36 Park-street, 1911 Brunswick. List of Meinbers. 373 KcriK.t. \V. X., J5.C.E., Uiiiveisity. Mvlh 1!)()G Kershuw, J. A., F.E.S., National Museum. Melb 1900 Kitson, A. E.. F.G.S., Imperial Institute, S. Kensington, 1894 Lond. Laidlaw. W., B.Se.. Department of A^'riculturi'. Mel- 1911 bourne. Leach, A. J.. D.Se., Education Department. McU). ... 1901 Lyie, Prof. T. R., M.A., D.Sc, University, Melb 1889 Loughrey, B., M.A.. M.D., Ch.B.. M.C.E., 1 Elgin-street. 188Q Hawthorn, Vic. Lowe, W., M.B., B.S., 279 Victoria-street, W. .Melb. Mill MacDonald, N., Veterinary Scliooh I'arkville 1911 MacKenzie, Colin W. M.D., B.S.. F.R.C.S., Collins-street, 1910 Melb. Massou, Prof. Orme, M.A., D.Sc. F.R.S.E., F.K.S., Uni- 1887 versity, Melb. Merrill, A. P., D.D.S., Collins-street, Melbourne 1911 Miehell, J. H., M.A., F.R.S., University, Melb 1900 Nanson. Prof. E. J., M.A., University, Melb 1875 Oliver. C. E., M.C.E., Metropolitan Board of Works. 1878 Melb. Osborne. Prof. W. A., M.B.. Ch.B., D.Sc, University, Melb. 1910 Payne, A. T., "Scotsburn," Toorak 1911 Payne, Prof. H., M.I.C.E., M.I.M.E., University, Melb. ... 1910 Petherick. E.A., F.R.G.S.. F.L.8., 251 Albert-street, East 1910 Melbourne. Kichaidsdu. A. K. \'.. Agricultuial Dcpt.. .Melli I!)I2 Robertson. A. W. D., M.D., B.S., University, Melb 1909 Robertson. W. A., G.M.V.C, Agricultural Dept., Melb. ... 1910 Rowe. W. C, '• Invicta," Chaucer-street, Canterbury. Vic. 1908 Schlapp, H. H., 31 Queen-street, Melb 1906 Shephard, John, Clarke-street, South Melb 1894 Skeats, Prof. E. W., D.Sc, University, Melb 1905 Spencer, Prof. W. Baldwin, C.M.G., M.A.. F.R.S., Uni- 1887 versity, Melb. Stapley, W.. M.D.. D.V.Sc, M.R.C.V.S., Cambridge, New 1910 Zealand. Sweet, George, F.G.S., Wilson-street, Brunswick. Vic. ... 1887 374 lAst of Members. Swinburne. Tlie Hon. G.. M.L.A.. " Shenton," Kinkora- 1905 road. Hawthorn, Vic. Taylor, R.. 31 Queen-street, Melb 1907 Taylor, T. G., B.A., B.E., B.Sc. Commonwealth 1912 Weatliei; Bureau, Melb. Thom, L. X.. B.Sc. Essex-road. Surrey Hills. Melb. ... 1910 Walcott. B. H.. F.G.S., Technological Museum, Melb. ... 1897 Ware, S., M.A.. Education Department, Melb 1901 Wisewould, F., 408 Collins-street, Melb 1902 Country Members. Desmond, J., R.V.S., G.M.V.C. " Ellerslie," Hurtle- 1901 square, Adelaide. S.A., Hart, T. S., M.A., B.C.E., F.G.S., School of Mines, Bal- 1894 larat, Vic. Hogg, H. II., M.A., 38 Harrington Gardens, S. Ken- 1890 sington, Lond., S.W. Ingram, Alex., Hamilton. Vic 1903 Lea, A. M.. F.E.S., Museum, Adelaide, S.A 1909 Maplestone, C. M., Eltham, Victoria 1898 Mennell, F. P., Rhodesian Museum, Buluwayo, South 1902 Africa Murray, Stuart, C.E., '• Morningside." Kyneton, Vic. ... 1874 ShaAv, Dr. A. E.. Healesville, Vic 1912 - Corresponding Members. Bailey, F. M., F.L.S., Government Botanist, Brisbane, 1880 Queensland Dendy, Professor Arthur, D.Sc, F.R.S., Sec.L.S., King's 1888 College, London Etheridge, Robert, .Tunr.. Australian Museum, Sydney, 1877 N.S.W. Lucas, A. H. S., M.A., B.Sc, Sydney Grammar School, 1895 Sydney, N.S.W. Stirton, James, M.D., F.L.S., 15 Newton-street, Glasgow 1880 List of Members. 375 Associates. Abbott, S. B., G7 Pakiiigton-street, Kevv 1910 Anuitage, R. W., B.Sc, Inspector of Schools, Educa- 1907 tion Dept., Melb. Asliton, H., "Argus "Office 1911 Audas, J. W., "Engnwrn," Punt-road, St. Kilda 1911 Bage, Mrs. Edward, " Cranford," Fulton-street. St. Kilda, 1906 Vic. Bage, Miss F., M.Sc Fulton-street, St. Kilda, Vic 1906 Baker, F. 11., 167 Hoddle-street, Richmond 1911 Baker, Thomas, Bond-street, Abbotsford, Vic 1889 Bale, W. M., F.R.M.S., Walpole-street, Hyde Park, Kew, 1887 Vic. Bennetts, W. R. Pakington-street, Kew, Vic 1894 Barkley, H., 9 Denham-street, Hawthorn 1910 Booth, John, M.C.E., B.Sc, "The Gables," Berkeley- 1872 street, Hawthorn. Breidahl, H., 36 Rovise-street, Port Melbourne 1911 Brodribb, X. K. S., Cordite Factory, Maribyrnong 1911 Brook, R. H. T 1906 Buchanan, Miss G., M.Sc, University, Mell) 1910 Biichner, L. W. G., 258 Riversdale-road, Hawthorn ... 1912 Canwell, C, 139 Hoddle-street, Richmond 1911 Chapman, F., A.L.S., National Museum, Melb 1902 Corbett, J., " Clifton," 39 Rushall-crescent, N. Fitzroy, 1907 Vic. Danks, A. T., 391 Bourke-street West. Melb 1883 Davies, Miss 0. B., B.Sc, Mentone Parade, Mentcne ... 1911 Fenton, J. J., 89 Royal Parade, Parkville 1910 Ferguson, W. H., 59 Brinsley-road, E. Camberwell 1894 Finney, W. H., 40 Merton-street, Albert Park. Vic 1881 Foiibister, J. J.. 45 Queen's Parade, Clifton Hill 1911 Foxcroft, A. B., Public Libraiy, Mell)Ourne 1911 Gabriel, C. J., Victoria-street, Abbotsford, Vic 1908 Gabriel, J., " Cwmdar," Walmer-street, Kew 1887 Gatliff, J. H.. Clowes-street, S. Yarra 1898 Green, W. Heber, D.Sc, University, Melb 1896 Grayson, H. J.. University, Melb 1902 Hamilton, J. T., F.L.S., "Brooklyn," Heidelberg-road, 1910 Ivanhoe. 376 Lid of Memhers. Hardy, A. D., F.L.S., Forest Department, Melb 1903 Herman, Hym.an, B.C.E., F.G.S., Department of 1897 Mines, Melb. HoKclley, C. A., B.Sc, " Bella Vista," Cotham-road, Kew 1910 Howitt, A. M., Department of Mines, Melb 191(1 Hunter, S. B., Department of Mines, Melb 1908 Jobbins, G. G., Electric Lighting and Traction Co.. 1902 Geelong, Vic. Joshua, E. C, 906 Malvern-road, Armadale 1911 Junnur, N., Geol. Department, University, Melb. ... 1912 Jutson, J. T., Geological Survey, Perth, W.A 1902 Keble, R. A., Winstay-road, Armadale 1911 Ivenyon, Mrs. A. F., 291 Highett-street, Richmond, Vic. ... 1908 Kenyon, A. S., Heidelberg, Vic 1901 Lambert, Thomas, Bank of New South Wales, Benalla, 1890 Vic. Lewis, J. C., L.V.Sc, Darwin, N.T., 1910 Luly, W. H., Department of Lands, Treasury, Melb. ... 1896 Mann, J., Chester-street, Surrey Hills, Melb 1912 Maclean. C. W., " Bronte," Strand, Williamstown, Vic. 1879 Mahony, D. J., M.Sc., Dept. Mines, Melb 1901 McKenzie, G. Lands Department, Melb 1907 McNab, V. R., " Almaden," Kooyong-road, Caulfield 1910 Mickle, K. A., " Illira," Marine Parade, St. Kilda 1911 Miller, E. E., Boundary-road, Toorak, Vic 1908 Morris, M., B.Sc.. Cotham-road. Kew 1912 Nicholls, E. B.. 164a Victoria-street. North Melb 1904 O'Neill, W. J., Lands Department, Melb 1903 Ower, L, H., State Coal Mine. Wonthaggi 1910 Philpots, G., E.P., D.D.S., M.A.C.D., 110 Collins-street. 1911 Melbourne. Pritchard, G. B., D.Sc, F.G.S., " Talavera," 6 Kooyong- 1892 koot-road. Hawthorn. Rati; .Mi.s.s J., M.Sc, University, Melb 1910 Rees, MissB., University. Moll) 1910 Richards, H. C, M.Sc, liiiversity of Queensland, 1909 Brisbane. List of Members. 377 Ritchie, E. G., Assoc. M.I.C.E.. Met. Board of V\oiks. 1909 Melb. Rivett, A. C. D., H.A.. H.Sc. University, Melbourne ... l'.)ll Roberts, R. 1>.. " Hraeniar," Stirling-street, Kew 1909 Schafer, K., " Invercloy," Xaijier-street, E.ssendon, 1883 Vic. Smeal, G.. J5.Sc 1911 Smith, J. A., 15 Collins-place, Melb 1905 Stilhvell, F. L., B.Sc 1910 Suiun/ers, H., M.Sc, University, JMellwurne 1902 Sutton, C. S.. M.B., B.S., Rathdown-street, N. Carlton, 1908 Vic. Sutherland, Ian M.. M.C.E., " Novar," Dandenong, Vic. 1905 Sweet, Miss G., D.Sc, Wilson-street, Brunswick, Vic. ... 1906 Thorn, Wm., Mines Department. Melb 1907 Thiele, E. 0., M.Sc, c/o 0. A. Thiele, •• Evandale," 1898 Chatham-road, Canterbury, Vic. Tovey, J. R., National Herbarium, South Yarra 1911 Traill, J. C, B.A., B.C.E., " Osmington," Domain-road, 1903 South Yarra, Vic. Wedeles, James, 231 Flinders-lane, Melb 1896 White, Miss R. E. J., D.Sc, Agricultural Dept.. 1908 Brisbane, Queensland. Wilkinson, H. L., M.C.E., Equitable Buildings, Melb. ... 1909 Woodward, J. H., Queens Buildings, Rathdown-street, 1903 Carlton, Vic. Woodburn, Mrs. Fenton, " Warrawoona," Gunnedah, 1910 N.S.W. Wright, R. A., L.D.S., Brunton Chambers, Collins- 1912 street, Melb. IN DKX. 3'/m.' /MiHK.'s 11/ new ijenera and speclas are printed m italics. Abutiloii ji)di(um, 105 Acaena moiitaria (tasmanica), 105 Aoaena siiiignisoihac (forma), 105 Acaiithocitps tatei, 172 Acinae octoradiata, 186 Adelotopus ipsoides, 33 Adelotopus Koolytides, 34 Aixoon rig-idnni, var. angiistifolium, 105 Albizzia amoeiiissima, 106 Ambrosia artemisifolia, 106 Andropog'on gryllus, 106 Andropo'go'i sericeus, 106 Aiithistiria avenacea, 106 Anthistiria mombranacea, 106 Anthyllis viiliiiMaria, 106 Ants, jil Aristida- calycina, 106. Ai*ticorus cojistrictieornis, 55 Ai'ticerus cylindricoi'nis, 55 Articerns deutipes, 55 Articenis griffitJii, 53 Articerns irregnlaris, 55 Articeris mastcri, 54 Articprns nitidicollis. 54 Articerns pascoeus, 55 Ascent and Descent of Water in Trees, 115 Astralinm (Imperator") undosuin , 187 Astrebla triticnides var. lappacea. 106 Atavism, 85 Atriplex stinitatnm, 107 Anstralian <^)l^'optera. :?1 Babesiasis, 15 Bartsia Trixago, 107 Bendigo Goldfield, 1 Berry. E. J. A., 229. 254 Bivalve Silurian. 363 Boopliihis annnlatus. var. niicio- plus, 15 Brachypepliis inquilivus. 73 Brassica adpressa, 107 Brenthidae. 77 Brighton Valleys, 272 Biiebner. L. W. G.. 122. 135. 220. 254 Byrrliidae, 75 <^'aberea pednncnlata, noni. hot.. 356 Talodera onneifera, 38 <'alycotome spinosa, 107 Tarabidae, 32 <''ardiothorax aeripennis, 77 Tardita calva, 173 rarditella exnlata. 174 Cassis adcocki, 170 Catalogue of Mollusca, 169 Catenicella ntc/nsa, 356 Cattle Tick, 15 Cellepora fossa, 361 Cervical Ribs, 82 Chapman, F., 186 Chiton verconis, 172 C'hlaniydopsis caricollis, 65 Chlaniydapsis ectatommae, (56 Chlamydopsis glabra, 73 Chlamydopsis Qyauulnta, 71 Chlamydopsis lafiprnnis. 67 Chlamydopsis longipes. 73 Chlamydopsis npara, 71 Clilamydopsis fvl" rculata, 64 Clavigeropsis aiistraliae, 56 Cnicus benedictns (carbenia bene- dicta), 107 Coleoptera, 31 Coccinellidae, 78 Condylocardia austral is, 173 Condylocardia cliapinaiii. 167, 173 Conosoma lateripenne, 40 Conosoma myrmecophilnm, 40 Coracoid Bones, 91 Cordns hospes, 77 Correlation of Size of Head and Intelligence, 229, 254 Crania, 122 Cream, Vi-soosity of. 307 Criminals. Melbourne. 229, 254 Cross Inoculation, 193 Cryptamorpha delicata, 74 Cryptandr'a nncinata, 108 Ctenisophus impressus. 44 Ctenisoplius n)orosns, 44 Ctenisoplins nigromcctiti, 43 Ctenisophus vernaliB, 44 Cucuiidae, 74 Cyatlilger punctatus, 49 Cyathiger sinmJafor. 49 Cypraea nahrieli, 190 Dandenong Creek. 268 Daphnclla mayi, 170 Davyia, 45 7^r, 38 Polylobus picco.sobrinus, 34 Pulybus (luadratipennis, 36 Polylobus .seniiopacus, 38 I'olj'lobus tcnus. 35 I'olyplocotes cdshi luiis. 75 I'oly/.oa. 357 I'oniMa lulea. 32 Prasophylluu' cilidfuiii. Ill I'rasopliylluin lU'spectans (inter nu'dia). 112 I'rasophylluin Suttoni, 112 I'ritchard. G. B., 363 Prognathism. 135 I'selapliidae. +2 Pselaplnis tlavipal|)is. K> Pselaphus gem iiiat us, 46 Psyclii'ometrie I'lirmula, 151 Ptinidac, 75 Quedius cuprinus. 1-0 Rees, B.. 105 • Ropoi't of Council. 365 Ribs (Cervical). 82 Rissoa (Onoba) bassiana, 170 Indt 1581 Eodvvayia liirsuta, 61 Kodwayia ininuta, 62 Rodwayia orieiitali.s, 62 Eodwayia ovata, 62 Root 'I'uberck', Inoculation of, 193 Kybaxis hryoijliihi, IH Kybaxih icfihtoiiuntie, 47 Rybaxis 5-t'ovoata, 4<>"oii sar- giis), 113 Schizoporella hacaita, 358 Schizopnrella comphinata, 358 Scopacus iuterocnlaris, 41 Scydmaenilla constricta, 60 Scydmaenilla piisilla, 60 Scydnuu'niis hifascicitlatu.'i, 57 Scydmaeuus castanooglaber, 60 Scydmacnns colobopsis, 59 Scydmaeuius glabripennis, 59 Scydmaeuus incciticoniis, 57 Scydniaonus iiisif/nirrntris, 58 Scydmaeiuis iinparidiis, 56 Selenariopsis, 35!) Selenai'iopsis yahridi, 359 Sepia capensis, 169 Sepia latimanus, 169 Sesbania acult-ata, 113 Silene coiiica, 113 Silurian Rivalvo, 363 Smeal, G., 151 Snails, Two Australian Land, 221 Sta.pley, W., 82 Stera (Cratystylis), 113 Stillwell, F. L., 1 St. John, P. R. n., 176 " Striiigyhark " Eucalypts, 176 Strongj'lopova cuiicinnd, 355 Stropliipora duhia, 356 Strophipora ei>iscopalus, 355 Structure of Syrinx (Fowl), 286 Sweet, G., 23 Syrinx of Fowl. 28(i Taeniogyrus (ilhnii, 79 Tasmania aboriginal, 135 Tasmauian C'oleoptera, 31 Tasmanian Crania, 122 Tenebrionidae, 77 Tertiary polyzoa, pt. xii., 355 Thomson. N., 193 Tliryptonieno raccMiulrisa, 113 Tick Fever, 15 Traesiphorus lioploccphalus, 44 Ti-etothoracidae, 74 Trichodesma latisepalum (zeylani- cum, var. latisepalum), 11:5 Tricliopteiygidae, 61 Turlw atkinsoni. 188 Turbo ("tlieridgei, 188 Turrieula bellapicta, 170 Tymms, A. O. V., 286 L'rospermum Dalechampii, 113 Victorian Tertiary Polyzoa, 355 Viscosity of Cream. 307 Voluta nivosa, var. coxl, 354 Volute, New Variety of, 354 Water in Trees, Ascent and De- scent of, 115 Worm-nodules, 23 Xylophilidae, 77 !uj LIBRARY?^ Publications of the Royal Society of Victoria, and of the Societies amalgamated with it. Victorian Institute for the Advancement of Science. Transactions. Vol. 1. 1855. Philosophical Society op Victoria. Transactions. Vol. 1. 1855. These two Societies then amalgamated and became : — Philosophical Institute of Victoria. Transactions. Vols. 1-4. The Society then became : — lloYAL Society of Victoria. Transactions and Proceedings (Vol. 5, entitled Transac- tions). (8vo). Vols. 5-24. Transactions. (4to). Vols. 1, 2, 3 (Pt. 1 only was pub- lished), 4, 5. 1888-1909. Proceedings (New Series). (8vo). Vols. 1 .1888 , Microscopical Sociktv of VictoriII. Journal (Vol. 1, Pt. 1, entitled Quarterly Journal). Vol. 1 (Pts. 1 to 4), 2 (Pt. 1), title page and index [nil published]. 1879-82. [The Society then combined with the Royal Society of Victoria] Note. — Most of the volumes published before i8go are out of print. MBL WHOI Librarv ■ Serials 5 WHSE 00607