CONTENTS 
GENERAL SUBJECTS. By J. 
Page 
Text Books, General Works, 
and Essays . . ■> 1 
Theory of Evolution : 
General 7 
Environment 14 
Heredity 15 
Arthur Thomson, M.A., F.R.S.E. 
Pago 
Special Subjects : 
Protoplasm and the Cell . . 18 
Oogenesis 22 
S permatogenesis 28 
Sex and Reproduction . ... 30 
MAMMALIA. By R. 
Introduction 1 
The General Subject 2 
Faunas 23 
Special Structures, Develop- 
ment, &c 24 
Special Work 25 
Primates 25 
Carnivora 26 
Insectivora 33 
AVES. By A. H. 
Introduction 1 
The General Subject 3 
Carinatse 49 
Passeres 49 
Picariso 67 
Psittaci 71 
Striges - . . . 72 
Accipitres 73 
Steganopodes 75 
Herodiones 76 
Odontoglossse 77 
Anseres 77 
Columbse 78 
GallinaB 86 
Opisthocomi 88 
Lydekker, B.A., F.G.S. 
Chiroptera 35 
Rodentia 36 
Ungulata 41 
Sirenia 54 
Cetacea 54 
Edentata ...... * t ... . 57 
Marsupialia 58 
Monotremata 63 
Incertse sedis 64 
Evans, M.A., F.Z.S. 
Fulicarise 88 
Alectorides 89 
Limicolse 89 
Gaviae 91 
Tubinares 92 
Pygopodes 93 
Impennes 93 
Crypturi 93 
Ratitse 94 
Immanes >.•*..* 94 
Apteryges 94 
Megistanes .......... 94 
Rhese 94 
Struthiones 95 
Formas sedis incertse 95 
