INDEX 



Neoplasms, genital 



gonadotropic hormones of, 224-27 



Neoteny 



and thyrotropic hormone, 252 

 Nerves of the pituitary; see Innervation 



of the pituitary 

 Nervous system, central; see Central 



nervous system 

 Neurocrine secretion of the pituitary, i,2i 

 Neutrophil, 13 



Non-protein nitrogen of blood 



effect of anterior pituitary extract on, 



298 

 effect of hypophysectomy on, 66 



Obesity, experimental 



effect of growth-promoting hormone 

 on, 100 

 Obesity and lesions of hypothalamus, 76 

 Oestrin; see also Oestriol, Oestrone 



effect of, on cells of pars glandularis, 



30 

 effect of, on action of gonadotropic 



hormones, pituitary, 152-54 

 effect of hvpophysectomv on action 



of, 56 ' 

 effect of, on lactation, 240-41 

 and prolan effects, 213 

 and action of oxytocic principle, 345 

 thymus involution after, 280 

 and thyrotropic hormone, 275 



Oestriol 



effect of hypophysectomy on response 



to, 70 

 effect of, on lactation, 24 1 

 and action of oxytocic principle, 345 

 Oestrogenic gonadotropic hormone, pi- 

 tuitary, 174 



Oestrone 



and castration-cells, 152 and n. 40 

 effect of, on diabetes mellitus, 289 

 effect of, on response to growth-pro- 

 moting hormone, 97 

 effect of, on lactation, 240- 41 

 effect of, on liver-fat, 363 

 and action of oxytocic principle, 345 

 effect of, on parathyroids, 279 



Oestrous cycle 



anatomical changes in pituitarv and, 



gonadotropic potency of pituitary 



and, 130, 137 

 effect of hyperthyroidism on, 275 

 and action of oxytocic principle, 345 

 Orophysin, 296, n. 21 

 Ovarian deficiency, gonadotropic hor- 

 mone of, 227-29 

 Ovarian secretion and action of oxytocic 



principle, 343^45 

 Ovariectomy; see also Spaying, Gon- 

 adectomy 

 effect of, on lactation, 239, 242 

 effect of, on amount of thyrotropic 

 hormone in pituitary, 256, n. 7 



Ovary; see also Gonads 



compensatory hypertrophy of, effect 

 of gonadotropic hormones, pitui- 

 tary, 160-61 

 effect of hypophysectomy on, 51 

 mammalian 



effect of hypophysectomy on, 49- 

 51, 61, 68, 69-70 

 and lactation, 235, 238-42 

 effect of thyrotropic hormone on, 257, 



n. 9 

 transplantation of 



and gonadotropic hormones, pitui- 

 tary, 161 

 Ovogenesis 



and gonadotropic hormones, pitui- 

 tary, 160 

 effect of hypophysectomy on, 51 

 Ovulation, 54, 68, 69-70, 174; see also 

 Gonadotropic hormones, pituitary 

 (particularly cat, ferret, rabbit). 

 Prolan, etc. 

 following coitus 



effect of removal of blood on, 166 

 in pregnancy 



gonadotropic hormones, pituitary, 

 and, 164 

 effect of thyrotropic hormone on, 254 

 Oxyphil, 13 

 Oxyphils 



secretions of, 29-31 



