INDEX 



An asterisk afl&xed to the page number indicates that the object referred 

 to is figured. 



Aceratherium, 243. 

 Allosaurus, 164. 



leg bones, 165.* 

 Alticamelus, 244. 

 Amphibians, armor, 121. 



early, 113, 114. 



footprints, 115,* 116. 

 Amphitlierium, 89.* 

 Anchisaurus, 167. 

 Anomodontia, 128, 129, 130, 131, 



brain, 130. 



distribution, 130. 



size, 131. 

 Ants as collectors, 193. 

 Aphelops, 243. 

 ArchiBopteryx, 178-180. 

 Arthropoda, 45. 

 Australian mammals, 191. 

 Aye-aye, 189. 



Balance of nature, 278. 



Baptornis, 177. 



Barosaurus, 157. 



Bear, 259. 



Belodonts, 133, 134, 135, 146. 



armor, 133. 

 Birds, Cretaceous, 179-185. 



earliest, 177, 178. 



fossil, 27. 



Jurassic, 178. 



rarity of fossil, 26, 27, 41. 



Bison, 260. 



crassicornis, 259. 



latifrons, 260, 261. 

 Bothriolepis, 92, 95. 

 Brachiopods, 48. 



loops of, 49,* 72.* 



Ordovician, 72. 

 Brain of anomodonts, 131. 



of dinosaurs, 163. 

 132. of Eocene mammals, 229, 230. 



of man, 163. 

 Brontosaurus, 152, 157,* 158. 

 Brontotherium, 237.* 



Caiman annor, 133. 

 Calamites, 122.* 

 Camarasaurus, 155 



thigh-bone, 156.* 

 Cambrian climate, 68. 



crinoids, 62. 



life, 62, 63, 64, 68. 



period, 61-69. 

 Camel, 244, 248, 249. 

 Camptosaurus, 172. 

 Carboniferous amphibians, 116, 117, 

 119, 120, 121, 123. 



crinoids, 78, 80, 81. 



insects, 78. 



footprints, 113. 



life, 77. 



period, 77-81. 



287 



