INDEX 



Trophoblast, 201 



Tumors of uterus, decidual, 109, 

 110, 114; fibroids of guinea pig, 

 produced by estrogens, 100 



Turner, C. W., 209, 213 



Twins, 43 



Umbilical cord, 200 



Unit, see International unit 



Urethra, 226 



Urine, androgenic hormones in, 

 234; estrogenic hormones in, 85, 

 86-203; gonadotrophic hormones 

 in, 202-204, 262-264; prpgnane- 

 diol in, 120, 121, 185, 204 



Uterine muscle, growth in preg- 

 nancy, 204; effect of estrogenic 

 hormones on, 93, 124; 204, 205; 

 effects of progesterone on, 122, 

 123, 125, 128, 204, 205 



Uterus, defined, 25; distention in 

 pregnancy, 205; form, in various 

 animals, 60, 51; growth of, 

 caused by estrogenic hormones, 

 80, 82, 85, 93-95, 204, 205; prep- 

 aration for implantation of em- 

 bryo, 59; structure, 48-54, 150; 

 tumors of, 100, 109, 110, 114; 

 utilization of progesterone, 188; 

 see also Blood vessels. Endome- 

 trium, Uterine muscle 



Vagina, defined, 24; in estrous 

 cycle, 71; of guinea pig, 72; of 

 mouse, 82 ; of rat, 73, 74 ; of mon- 

 key, 74; structure, 50, 64, 55 



Vaginal closure membrane, 68, 72 



Vaginal test, 72, 82, 83 



Van der Horst, C. J., 262 

 Van Herwerden, M. A., 155, 156 

 Van Wagenen, Gertrude, 203 

 Vargas Fernandez, Luis, 100 

 Vas deferens, see Seminal duct 

 Vasectomy (Steinach operation), 



231 

 Venning, Ethel H., 120, 186 

 Villi, of placenta, 200, 201 

 Virgil, 63 



Voronoff, Serge, 230 

 Voss, S. H., 232 



Walton, Arthur, 87 

 Weichert, C. K., 104, 113, 114 

 Welch, W, H., 161 

 Wells, G. P., 8, 22 

 Wells, H. G., 8, 22 

 Westphal, U., 115 

 Whale, ovary, size of, 33 ; progester- 

 one in, 117 

 White, Abraham, 268 

 Whitman, Walt, 198 

 Whitney, Rae, 48 

 Wiesbader, Hans, 185 

 Wilds, A. L., 87 

 Wilson, E. B., 17 

 Wintersteiner, Oskar, 116 

 Wislocki, G. B., opposite p. 34 

 Wright, Elsie S., 47 



Yolk of egg, 83, 39, 40 

 Young, W. C, 97 



Zondek, B., 85, 141, 163, 202 

 Zuckerman, S., 162, 166, 168, 176, 

 190, .262 



{ 281 } 



