INDUCED BREEDING 103 



PATCH, E. M. , 1933 - "Fertility and development of newt eggs obtained after anterior lobe implants. " Proc. Soc. Exp. Biol. & 



Med. 31:370. 

 PONSE, K., 1936 - "La ponte artificielle chez Rana temporaria. " Compt. rendu. Soc. Biol. 121:1397. 

 ROBINSON, T. W. G H. C. HILL, Jr., 1942 - "Studies on induced ovulation in Rana pipiens. " Proc. Fed. Am. Soc. Exp. Biol. 



1:73 (Also 1940 Trans. 111. State Acad. Sci. 33:223). 

 ROSTAND, J., 1936 - "Hypophyse et ovulation che2 les Eotraciens. " Compt. rendu. Soc. Biol. 117:1079. 

 RUGH, R. , 1935 - "Ovulation in the frog. I. Pituitary relations in induced ovulation. " Jour. Exp. Zool. 71:149. 

 RUGH, R. , 1935 - "Ovulation in the frog. II. Follicular rupture to fertilization. " Jour. Exp. Zool. 71:163. 

 RUGH, R. , 1935 - "Pituitary-induced sexual reactions in the Anura. " Biol. Bull 68:74. 



RUGH, R. , 1937 - "A quantitative analysis of the pituitary-ovulation relation in the frog. " Physiol. Zool. 10:84. 

 RUGH, R. , 1939 - "Relation of the intact pituitary gland to artificially induced ovulation. " Proc. Soc. Exp. Biol. G Med. 



40:132. 

 RUGH, R. , 1946 - "The effect of adult anterior pituitary hormone on the tadpoles and immature male frogs of the bullfrog, Rana 



catesbiana." Biol. Bull. 90"29. 

 RUGH, R. GG. T. SAMARTINO, 1945 - "Frog ovulation in vitro. " Jour. Exp. Zool. 98:153. 



RYAN, F. J. G R. GRANT, 1940 - "The stimulus for maturation and for ovulation of the frog's egg. " Physiol. Zool. 13:383. 

 SHAPIRO, H. , 1939 - "Seasonal changes in the ovulation response of Xenopus laevis to methyl testosterone. " Jour. Endocrin. 1:1. 

 SHAPIRO, H A. , 1943 - "Accion de la hipofisis de Bufo arenarum sobre Xenopus laevis. " Rev. de la Soc. Argentian de Biol. 



19:187 (See also 1939 S. Afr. J. M. Sc. 4:21). 

 SHAPIRO, H A. G Z. ZWARENSTEIN, 1937 - "Effects of progesterone and testosterone on Xenopus and its excised ovary." Jour. 



Physiol. 89:3. 

 -SIMS, W. L. G D. W. BISHOP, 1947 - "Seasonal variation in the gonadotropic potency of dried anterior pituitaries of Rana 



pipiens, " Science. 106:588. 

 SPAUL, E. A. , 1924 - "Experiments on the injection of pituitary body (anterior lobe) extracts into Axolotls. " Jour. Exp. Biol. 



2:33. 

 STEIN K. F. , 1934 - "Effects of avian pituitary glands in salamanders. " Proc. Soc. Exp. Biol. G Med. 32:157. 

 STREET, J. C, 1940 - "Experiments on the organization of the unsegmentcd egg of Tritunis pyrrhogaster. " Jour. Exp. Zool. 



85:383. 

 VANDERPLANCK, F. L. , 1935 - "The effects of pH on breeding (Xenopus). " Aquarist and Pondkeeper. 6:135. 

 VOLNO-YASENETSKII, A. V., 1955 - "Effect of Co gamma radiation on the process of ON-ulation, fertilization, and embryonic 



development of the frog." Doklady Akad. Nauk. SSSR 100:389-391. 

 VOSS, H. , 1934 - "Kunstliche Eiablange beim AxolotI hervorgcrufen durch das thyreotrope Hypophysenvorderlappenhormon. " 



Arch. f^. Ent. mech. 132:805. 

 WARING, H. , F. W. LANDGREBE, G R. M. NEILL, 1941 - "Ovulation and oviposition in Anura. " Jour. Exp. Biol. 18:11. 

 WEISMAN, A. I. GC W. COATES, 1944 - "The South African Frog in pregnancy diagnosis. " N.Y. Biol. Res. Foundation. 

 WILLS, I. A., G. M. RILEY, GE M STUBBS, 1933 - "Further experiments on induction of ovulation in toads. " Proc. Soc. 



Exp. Biol. G Med. 30:784. 

 WOLF, O. M. , 1929 - "Effect of daily transplants of anterior lobe of pituitary' on reproduction of frog (Rana pipiens). " Proc. Soc. 



Exp. Biol. G Med. 26:692. 

 WOLF. O. M. , 1937 - "Induced breeding reactions in isolated male frogs. Rana pipiens." Biol. Bull. 73:399. 

 WRIGHT, P. A. G F. L. HISAW, 1946 - "Effect of mammalian pituitary gonadotropins on ovulation in the frog Rana pipiens. " 



Endocrin. 39:247. 

 YOUNG, J. Z. G C. W. BELLERBY, 1935 - "The response of the Lamprey to injection of anterior lobe pituitary extracts. " Jour. 



Exp. Biol. 12:246. 

 ZAHL, P. A., 1935 - "Cytological changes in frog pituitary considered in reference to sexual periodicity." Proc. Soc. Exp. Biol. 



G Med. 33:56. 

 ZIMMERMAN, L. , R. RUGH, 1941 - "Effect of age on the development of the egg of the leopard frog, Rana pipiens. " Jour. 



Morph. 68:329. 

 ZWARENSTEIN, H. , 1937 - "Experimental induction of ovulation with progesterone. " Nature. 139: 1 12 (See ibid, 140:588). 

 ZWARENSTEIN, H. , 1942 - "Seasonal variations in sensitivity to progesterone-induced ovulation. " Tr. Roy. Soc. S. Africa. 



29:28. 



". . . crilicisiu, an open caul honest look al the world and at ourselves, must 

 be desired actively and courted assiduously. It must become the mistress of the 

 scientist. The scientific critic must be a creative artist, wise, knowing, fair, with 

 taste and talent, who also remembers with Petrarch that love, Itate, and envy are 

 the three poisons which kill sound criticism. " 



W. B. Bean, Perspectives i)i Biology and Medicine 7:224, 1958. 



