ALL RIQHTS RESERVED. 



Vol. VI. No. 38 



Rat^hal 



'»" SeiERGE: 



A ]VEonthly Review of Scientific Progress. 



APRIL, 1895. 



CONTENTS. 



PIS' 



Notes and Comments.. .. .. .. .. 217 



Discussions at the Royal Society— Variation and Probability — 

 Are Small Variations Eliminated ?— The Statistical Method 

 in Variation — Variations and Mutations — The Classification 

 of Birds — Animals in Sterilised Air — Artificial Production of 

 Varieties of Bacteria— Geographical Distribution and Tem- 

 perature — Mr. Scott Elliot's African Journey — West Indian 

 Liverworts and African Plants — The Function of Stomata — 

 Formol as a Preserving Fluid— Do Adders Swallow their 

 Young ?— The New Giraffe— John Hancock Memorial Medal — 

 Geology in the " Court Circular " — Eccentric Glacial Chro- 

 nology — Children and Museums. 



I. The Origin of Species among Fiat-Fishes. By J. T. Cunningham, 



M.A. (Concluded) 233 



II. Forms of Mountains. By J. E. Marr, MA., F.R.S., Sec. G.S. . . 240 



III. The Structure and Habits of Archaeopteryx. Part Y. By C. H. 



Hurst, Ph.D 244 



IV. The Teeth of the Horse. By W. G. Ridewood, B.Sc. (Illustrated) 249 



Y. A Passage-at-Arms over the Amphipoda. By the Rev. T. R. R. 



Stebbing, M.A., F.L.S 259 



Some New Books . . . . 269 



Degeneration. By Max Nordau— The Physiology of Plants. By 

 Paul Sorauer ; translated by F. E. Weiss — Dictionary of Birds ; 

 Part III. By A. Newton and Hans Gadow — Imagination in 

 Dreams. By Frederick Green-wood. 



Obituary .. 277 



J. W. Hulke— Marquis de Saporta— T. Twining — C. Girard— 

 E. Bayle— D. Lyall Dr. Jollet. 



News of Universities, Museums, and Societies 281 



Correspondence: — W. S. Bruce — Sir J. W. Dawson — C. H. Hurst 287 



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