ALL RIGHTS RESERVED. 



Vol. III. No. 18. 



Ratup^al 



"^^ SeiERGE: 



JH JVEonthly I^evieW of Scientific Progress. 



AUGUST, 1893. 



London and New York: MACMILLAN & CO. 



109 



CONTENTS. 



PAGE 



Notes and Comments 80 



The Exploration of EJast Africa—" Borderland "—Sierra Leone 



— Discovery of an American Type of EJxtinct Mammal in 



the Balkans — Plant Pitchers— Fungus Parasitic on a 



Beetle — Algae — Popular Geology. 



I. Rainfall and the Forms of Leaves. By Miss Annie Lorrain 



Smith 95 



II. On the Zoo-Geographical Areas of the World, illustrating the 



Distribution of Birds. By R. Bowdler Sharpe, LL.D., F.L.S. . . 100 

 III. Earthworms and the Earth's History. By F. E. Beddard, M.A., 



F.R.S 



lY. Some Useful Methods in Microscopy. By E. A. Minchin, M.A. .. 112 

 Y. Recent Additions to our Knowledge of the Eurypterida. By 



Malcolm Laurie, M.A., F.L.S 124 



YI. Supposed Fossil Lampreys. By A. Smith Woodward, F.L.S. 128 



YII. The Origin of Monocotyledonous Plants. By A. B. Rendle, M.A., 



F.L.S 130 



YIII. The Recapitulation Theory in Biology. By S. S. Buckman, F.G.S. 138 

 IX. Professor Blake "On the Bases of the Classification of 



Ammonites " . . • • 1^0 



Some New Books 1*6 



A Dictionary of Birds. By A. Newton.— Bronn's Klassungen 

 und Ordnungen des Thier-reichs : Aves. By H. Gadow.— On 

 English Lagoons. By P. H. Emerson. — Manual of Bacterio- 

 logy. By S. L. Schenk.— Manuel de Geographic Botanique. By 

 Oscar Drude.— The Genus Masdevallia. By Florence H. Wool- 

 ward.— Illustrations of the Typical Specimens of Lepidoptera 

 Heterocera in the British Museum. By G. F. Hampson. 

 Nevrs of Universities, Museums, and Societies . . . . 154 

 Obituary:— F. P. Pascoe.— H. H. Higgins.— H. Yiallanes.— John 

 Rae.— J. W. Davis 159 



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