232 TNDEX VOL. 35 



I'AGli 



Elliptical — Most prominent shape of the amphibian femur 4 



reptilian femur 4 



bird femur 4 



bat femur 4 



mammalian femur 4 



femur below man 4 



Evidences of advance in amphibians 18, 29 



reptiles 19, 29 



birds 19, 29 



bats 20, 29 



other mammals 20, 29 



man 21, 29 



type advancement 21, 31 



External shapes of femora 4 



Factors influencing bone type of structure 24 



Femora examined 1, 22 



of amphibians 34 



selection of 2 



Femur of Acris gryllus 41 



Ajaia ajaja (roseate spoonbill) 61 



Alces machlis (elk) 105 



Alligator mississippiensis 56 



Amazona oratrix (Mexican parrot) 63 



Amblystoma tigrinum 38 



Ameiva exul 54 



Amphibolurus barbatus 51 



Anas boscas (mallard duck) 69 



Anolis cristatellus 53 



Anthracoceros malabaricus (hoinbill) 74 



Anthropopithecus (chimpanzee) 114 



Antrozous pallidus 81 



Ara macao (macaw) 64 



Aramus vociferus (courlan) 65 



Arctomys monax (woodchuck, groundhog) 137 



Aromochelys odoratus (musk turtle) 58 



Artibeus palmarum 86 



Asio wilsonianus (long-eared owl) 72 



Astur atricapillus (goshawk) 74 



Ateles (spider-monkey ) (Tehuantepec ) 122 



Auchenia glama (llama) 10fi 



Australian. No. 227420, U. S. Nat. Mus 202 



Balantiopteryx plicata 84 



Bernicla canadensis (wild goose) 73 



Bison americanus (American bison) 128 



Bos (domestic ox) 126 



Bos bubalis (water buffalo) 135 



Brachyphylla 86, 



Bradypus tridactylus 124 



Bubalis jacksoni (hartebeest) 133 



Bufo agua 45 



americanus (American toad) 46 



boylii 47 



columbiensis 46 



halophilus 45 



lentiginosus cognatus 47 



woodhousi . 46 



valliceps 47 



Bull dog (not a pure blood) 139 



Callicebus torquatus 123 



