ALL RIGHTS RESERVED. 



yoi. I. 



No. 7. 



Rathi^al 



•2. 7// 



SeiERGE: 



ijl JVIonthly I^evieW of Scientific Progress. 



y^^/^; SEPTEMBER, 1892. 



CONTENTS. 



PAue 

 Notes and Comments . ■ 481 



The New Geology— The Exploration of Mount Milanji, Nyassa- 

 land— The Age of the Earth— The Study of Variations in 

 Animals— The Evolution of the Mammalia— The Evolution 

 of Man— The Ear — Vanilla Disease in the Seychelles. 

 I. The Foundations of Science. By Professor St. George Mivart, 



F.R.S. 497 



II. Biological Theories.— I. The Nature of Heredity. By C. Herbert 



Hurst, Ph.D 502 



III. The Evolution of Oceans and Continents. By A. J. Jukes-Browne, 



B.A., F.G.S 508 



IV. Recent Advances in Knowledge of the lohthyosaiirian Reptiles. 



By R. Lydekker, B.A., F.Z.S 514 



V. Notes on the Development and Structure of Arachnids. By G. H. 



Carpenter, B.Sc 522 



VI. Death in the Forest. By James Rodway, F.L.S 528 



VII. Some Recent Researches on the Movements of Diatoms. By E. A. 



Minchin, B.A. . . . . 537 



Some New Books 541 



Darwin and after Dar«fin. By Professor Romanes. — An 

 Exploration of Dartmoor and its Antiquities. By J.L. "VST. 

 Page. — The Anatomy, Physiology, Morphology, and Develop- 

 ment of the Blow-Fly. By Professor B. Thompson Lowne. 

 — Birds. By Professor St. George Mivart. — Les Plantes 

 Alexiteres de I'Amerique. By H. Bocquillon-Limousin, — 

 Mineralogy. By Dr. F. H. Hatch. 

 News of Universities, Museums, and Societies . . 555 



Observations and Correspondence 560 



London .^nd New York: MACMILLAX .v CO. 



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