INDEX 



Forests of the Devonian period, 27 

 "Fossil, living," opossum as a, 47 

 Fovea anterior, 149; in molar of 

 Ehringsdorf man. Fig. 80, 151 

 Fovea posterior, 149 

 Frog, development of ear in, 207; 

 Eustachian tube of, 207; 

 head of, transverse section of. 

 Fig. 106, 208; stapes of. 

 216 

 Frontal bones, 83; become one of 

 dominant elements in vault 

 of human skull, 87; evolution 

 shown in series of ten skulls 

 from fish to man. Fig. 49, 79; 

 joint process of frontal and 

 malar replaces reptilian post- 

 orbital bones, 90; their rela- 

 tion to superior maxillary in 

 mammals, 87; retained from 

 fish to mammals, 86; sinus of, 

 161 

 of chimpanzee, female. Fig. 49, 



79 

 of Didelphys, 50; Fig. 49, 79 

 of Iclidopsis, Fig. 49, 79 

 of man. Fig. 49, 79 

 of Mijcferosauru.i, Fig. 49, 79 

 of Notharctns, Fig. 49, 79 

 of Seymoiiria, Fig. 49, 79 

 Frontal sinus, its connections with 



nasal meati. Fig. 85, 163 

 Fundus oculi in man and anthro- 

 poids, 199 



Galago, eye and orbits of, 60 



Ganoids, possessed a lung, 24; 

 skull compared with that of 

 amphiliian, 29, 107; com- 

 position of skeleton, 23; 

 mouth of, 130; relation to 

 human ancestry, 24; hyoid 

 gill cleft in, 209; teeth of 

 earliest amphibia similar to 

 those of, 31 



Ganoine, 23; covers bony jaw- 

 plates of higher fi.shes and 

 early amphibia, 106; on max- 

 illae and premaxillne of early 

 crossopt.s, 130; on teeth of 

 fossil crossopts, 112 



Gaupp, E., cited on the origin of 

 the meniscus, 38 



Genetic study of physiognomy, 

 224 



Genioglossus, see Geniohyoglossus 

 muscle 



Geniohyoglossus muscle, of gorilla, 

 P'ig. 67, 124; of man. Fig. 67, 

 124; Fig. 68, 125, 126 



Gibbon (Hylobates) external ear 

 of. Fig. 110, 213; habit of 

 climbing upright, 64; hands 

 of, 198; palatal arch of 

 female. Fig. 74, 140; skull of, 

 top view. Fig. 35, 58 



Gidley, J. W., on mammalian 

 teeth from Basal Eocene, 53 



Gigantism and acromegaly in 

 dogs, 231 



Gill arches, see Branchial arches 



Gill cartilages, folding of, in 

 shark, 123 



Gill chamber, bony covers of the, 

 23; changes of, from crossopts 

 to Amphibia, 29 



Gill clefts, in embryo sturgeon, 

 Fig. 107, 209 



Gills, internal, eliminated by 

 Amphibia in adult stage, 114 



Gill openings, homologous with 

 mouth-pouches, 94 



Gill region 



of Cephalaspis (restored by 



Stensio), Fig. 57. 95 

 of Kioeraspis, Fig. 57, 95 



Gill slits, in human embryo of 

 third week. Fig. 69, 126, 127 



Glands, endocrine, as producers 

 of "hormones," 171; hypo- 

 physis, 230; hypophysis- 

 pituitary complex, 231; lacry- 

 mal, human, 194; Meibomian, 

 in human eyelids, 194; pineal 

 and parapineal, 186, 200; 

 pituitary, effect of diseased, 

 171; salivary, of man and 

 ape.s, 129; sebaceous, origin 

 and function of, 41; sudori- 

 parous, origin and function 

 of, 41; thyroid, and gigan- 

 tism, 231; effects of deficient, 

 171; effects of deranged, 237; 

 effect on growth of face, 

 232 



"Goblet eye" of flatworm, section 

 of. Fig. 92. 177; of jellyfish 

 (Sarsia), Fig. 91, 175 



Goniale, of armadillo, foetal. Fig. 

 114, 221; of hedgehog {Erin- 



270 



