HARVARD UNIVERSITY. LIBRARY OF THE MUSEUM OF COMPARATIVE ZOOLOGY. fyd.d xchange uly 2 59 —-Pehuary ese ee a ee ee ee ee a ee , ; a a s¢ cad TRANSACTIONS OF THE New York ACADEMY OF SCIENCES. TRANSACTIONS OF THE New York AcADEMY OF SCIENCES LATE LYCEUM OF NATURAL HISTORY. VOLUME. XI. October, 1891, to June, 1892. Kdited by the RECORDING SECRETARY, assisted by the PUBLICATION COMMI?TTER. JINEW YORK: PUBBISHED BY THE.ACADEMY. OFFICERS OF THE ACADEMY. 1892-1893. Honorary President. Joun S. NEWBERRY. President. OLIVER P. HUBBARD. Vice-Presidents. J. A. ALLEN, H. CARRINGTON BOoLron. Corresponding Secretary. TuHomas L. CasEy. Recording Secretary. H. T. Vours. Treasurer. HENRY DUDLEY. Librarian. JAMES F’. Kemp. Council. N. L. BRITTON, H. F. Ossorn, CHARLES F. Cox, J. K. Rees, D. S. MARTIN, W. T. TROWBRIDGE. Curators. Gro. F. Kunz, ARTHUR HOLLICK, HAROLD JACOBY, H. H. Russy, F. G. WIECHMANN. Finance Committee. Joun H. Hinton, Chairman, H. G. MARQUAND, O. B. Porrrer. Committee of Publication. T. L. Casnty, Chairman, D. 5S. Martin, H. T. Vuuts, J. A. ALLEN, H. CARRINGTON BOLTON, J. K. Rexs. Committee on Nominations. ENTIRE COUNCIL. Library Committee. N. L. Brirron, Chairman, H, Carrineton BOLTon, J. A. ALLEN. TABLE OF CONTENTS. VouumeE XI. PAPERS READ BEFORE THE ACADEMY. NATHAN BANKS. Notes on the Phalangide of the United States (by title).....-..-.see0ee00 125 H. CARRINGTON BOLTON. The Eggs of the Plover.. ec hades ct ae secc edna sor wen can cassis a aa eavensbee qe Chemical Arts in Bible Tanca” a Sargcaruac Wacaepisacles sass coseasecstel OO A Select Bibliography of Giemees wy ttle. gusausaciaariganidssienwaasl LO Historical Notes on the Gold Cure.. Bee sepeteoees LL N. L. BRITTON. The American Species of the Genus Anemone.. =e sweteneteen) eo A List of the Species of the Genera Scirpus and Rynchospora oceurring in North America.. aes aclesaiveweak ey i: Note on a Collection of Tertiary Fossil Plants earch iceen ret me Potosi, Bolivia............ -. 123 The sigan Plants ééilected a by I Dr. nPHonag Morong; 1888-1890 (by title).. eee Saas = Seen asia cede eal gem aae eetaesiass severe LDL THOMAS L. CASEY. Moleopterolozical Notices; No. LIL (by tittle). ....00cccssccoccssesncenccscssconece | Q Coleopterological Notices, No. [IV (Oy title) ..........scsssscessesccesescccessere 125 ALBERT H. CHESTER. The Origin and History of Mineralogical Names ..............cceceee seers 49 JOHN A. CHURCH. Pate RRA Woy TODLOIMY WE GINA ot. casann auu'sct exe Jegas sag devgee onde’ pantassey 44, BG CARL H. EIGENMANN AND ROSA 8. EIGENMANN. A Catalogue of the Fishes of the Pacific Coast of America North of eer Rae N RETO CME A on. cy nis cad cee socinav av Gy <8 is prevailingly idiomorphic. The diabases of dikes thus pass into them by the idiomorphie development of the dark silicates. In the Lake Champlain region there are dikes of both the augitic and the hornblendic variety. We have employed the name augite-camp- tonite when wishing to make a distinction. The camptonites consist of brown basaltic hornblende, augite, plagioclase, magnetite, and occasionally a. little intermingled g lassy matter. The minerals are markedly panidiomorphie and the large hornblendes and augites give at times a porphyritic character. The hornblende is the most conspicuous and attractive component. It is strongly pleochroic, brown to yellow, and, in distinction from the augite, shows no zonal structure. A small second generation consists of minute acicular cr ystals, which are a miniature repro- duction of the larger forms. The augite likewise forms two genera- tions. The older and larger consists of zonal prismatic erystals with dark green cores and light yellow rims, which may differ 10° in extinction. The second generation are minute and acicular. The plagioclase is less perfectly developed than the bisilicates. Several camptonites contain abundant olivine. The camptonites all contain less than 45 per cent. SiO, in this region, but in other respects present great variability. They do not afford more than 6 per cent. of alkalies, with soda usually in excess. The following table illustrates the range of composition :— 22 TRANSACTIONS OF THE [ocr. 19, I. ite Ill. We Vis VI. SO, 5 - 43.50 41.00 41.94 40.95 48.19 44.87 AlTOn te : oe 7.02) (2136) lb 66 G45 Gao) seas HeiOn yaw ai. oe (1BG8. BAe ROT 5.47 Seay ee BeQi eres w tien) Pie = DA ay che NnOnsy. 4 ea — 0.25 0.33 — trace. NOS CONE | Aah = 2 AG) 1 Or9a ee 6.74 CaO Ho) se, SAS: (10.40. 9:47. 100535 66S ee MeO us gael