486 



INDEX 



Estrous cycle, weight changes during, 75 

 Estrus, age at first, 58 



delayed by pseudopregnancy, 78 

 in lactating mice, 81 



external signs of, 65 



onset of, 75 



ovulation during, 76 



postpartum, 56, 75 

 Exocoelom, 20 



relation to coelom, 7,^ 

 Expansion, tumor growth by, 169 

 External genetalia, epidermoid carcinoma of, 

 196 

 papilloma of, 195 

 Extra-chromosomal influence, 251, 262, 266, 



273 

 Extra-embryonic coelom (see exocoelom) 



ectoderm, 8 

 Extramedullary myelopoiesis, non-malignant, 



215, 216 

 Eyelid, papilloma of, 195 

 Eyes, melanoma of, 204 

 opening of, 58 



Fat, lipoma, 200 



Favus, 429 



Fertility, in inbred strains, 334, 343 



Fertilization, 2, 77 



Fibro-adenoma, 181 



Fibroma, 193, 199 



Fibrosarcoma, 194, 203 



neurogenic, 204 



of kidney, 222 



of liver, 221 



of mammary gland stroma, 192 



of pancreas, 221 



of uterus, 226 

 Filterable organisms, 408 (see also virus 

 diseases) 

 pleuropneumonia-like, 408 

 Flagellates, 351 

 Fleas, 371 



as intermediate hosts, 363, 364 



as vectors, 353, 372, 421 



eradication of, 372 

 Follicles (see ovarian follicles) 

 Follicular cells, 2, 149 (see also cumulus cells) 

 first appearance of, 59 



Fore-gut, 26 



posterior motion of portal, 31 

 Foster nursing, tumor incidence and, 257, 321 

 Friedlander-like bacillus, 410 

 Fungus diseases, 429 



Gaffkya tetragena, 415 

 Gall bladder, 126 



tapeworms in, 364 

 tumors of, 219 

 Gastric glands, 119 



protozoan infection in, 355 

 Gene mutations, 234 (see also mutations) 

 Genetic factors, in infectious disease, 400, 



403, 418, 454 

 Genetics of leukemia, 270 

 of lung tumors, 262 

 of mammary tumors, 259 

 of non-epithelial tumors, 264 

 of tumor transplantation, 279 

 Genital system, female, 146 



male, 133 

 Germ cells, primordial, 59 

 Germ layers (see inversion of germ layers) 

 Germinal epithelium, production of ova by, 



59 

 Gestation, 55 



lengthened in nursing females, 56 

 Giant cells, 40 

 Giardia inuris, 352 

 Glands, adrenal, loi 



ampullary, 139 



anal, 124 



bulbo-urethral (of Cowper), 144 



clitoral, 157 



coagulating, 55, 141 



dorsal prostates, 142 



duodenal (Brunner's), 121 



endocrine, 98 



exorbital lacrimal, 108 



gastric, 118 



Harderian, 109 



hibernating, 108 



intestinal (Lieberkiihn's), 120 



intra-orbital lacrimal, 109 



lingual, 112 



male accessory, 137 



mammary (see mammary glands) 



of female urethra, 132 



