244 INDEX 
Birds, first intimation of, 76 
rarity of fossil, 86, 87 
related to reptiles, 92 
wings of embryonic, 73 
with teeth, 79, 88 
Bison, European, 231 _ 
Books of reference, xix, 17, 32, 47, 69,. 89, 110, 18%) F 
158, 176, 197, 218 
Breeding of large animals, 233 
Brontornis, size of leg-bones, 149 
Brontosaurus, size of bones, 96,* 97,* 109 
Brooks, W. K., on Lingula, 229 
Buffalo legend, 216 
Buttons as vestigial structures, 202 
Carcharodon auriculatus, 66 
teeth, 66 
megalodon, 65 
estimated size, 66 
teeth, 65, 67 
Carson City footprints, 45 
Casts, how formed, 10, 11 
Cats and clover, 234 
Cephalaspis, 24* 
Ceratosaurus, habits, 106. : oy 
restoration, 106* 5 
skull, 110* : ihe 
Changes in Nature slow, 227 ) ag 
Cheirotherium, 43 ie 
