VOl. VIII. ALL RIGHTS SERVED. N . 50. 



MAY 13 1896 



Ratup^al 



T SeiERGE: 



A JVIonthly Review of Scientific Progress. 



APRIL, 1896. 



CONTENTS. „ AGt 



Notes and Comments 217 



Zoological Nomenclature — Zoological Nomenclature, a Pro- 

 posal — The Taming of the Shrews — The Antarctic Fauna — 

 Two Geographical Reconstructions — The Distribution of 

 Plants — Flowers and Insects — A Poisonous Orchid — The 

 Temperature of Plants— Technical Education in New South 

 Wales -The Illinois State Laboratory of Natural History — 

 The Coelomic Fluid of the Earthworm— Microbes and 

 Butter— Diabrotica in North America — Warning Colours and 

 Mimicry — The Embryology of Platypus. 



I. The Horizontal Pendulum. By Charles Davison, M. A., F.G.S. (Illus- 

 trated) 233 



II. On a Proposed Classification of the Pelecypoda. By B. B. Wood- 

 ward, F.G.S., F.R.M.S 239 



III. Sharks as Ancestral Fishes, By Bashford Dean, Ph.D. (Illus- 



trated) 245 



IV. Rules of Nomenclature in Zoology. By Rev. T. R. R. Stebbing, 



M.A., F.L.S., and Professor E. D. Cope 254 



Y. The Wing of Archaeopteryx. By W. P. Pycraft, M.B.O.U. (Illus- 

 trated) 261 



Some New Books . . 267 



Fishes, Living and Fossil : by Bashford Dean 1. A.S.W.i. — A 

 Handbook of British Lepidoptera : by E. Meyrick. — Hand- 

 buch der Palaarktischen Gross-Schmetterlinge : by M. Stand- 

 fuss. — Die Artbildung und Verwandtschaft bei den Schmet- 

 terlingen, Part II.: by G. H. T. Eimer (Geo. H. Carpenter).— 

 The Natural History of Aquatic Insects : by L. C. Miall. — 

 Flore de l'lle de la Reunion : by E. J. de Cordemoy.— Synop- 

 tical Flora of North America: by A. Gray and S. Watson. — 

 Nature vevsus Natural Selection: by C. C. Coe. — New Serials. 



Obituary . . . . . . . . . . . . . . 278 



G. A. Pirona — C. Wachsmuth — Sekiya Seikei. 



News of Universities, Museums, and Societies 281 



Correspondence 285 



E. Ray Lankester— R. I. Pocock— J. T. Cunningham— Theodore 

 Groom — S. S. Buckman — Conway MacMillan — E. Cuthbert 

 Atkinson. 



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