ISOLATION OF SEXUAL HORMONES 333 



Itagaki. 1917. The influence of Corpus luteum extracts upon plain 

 muscle, especially that of the uterus. Quart. Jl. of Experim. 

 Physiol., 11, p. 1. 



1917. On the action of various extracts obtained from the cow's 



ovaries upon the muscular tissue of the uterus, intestine and 

 blood-vessels. Ibid., p. 27. 



1917. The action of certain gland extracts and drugs upon the 



uterus of the rat. Ibid., p. 39. 



Maranon. 1922. Problefnas actuales de la doctrina de las secreciones 

 internas. Madrid. 



P]6zARD. 1911. Sur la determination des caracteres sexuels secon- 

 daires chez les Gallinaces. C. R. de VAcad. d. Sc, 153, p. 1027. 



Stein und Herrmann. 1921. Uber kiinstliche Entwicklungshem- 

 mung mannhcher sekundarer Geschlechtsmerkmale. Arch. 

 f. Entw.-Mech., 48, p. 447. 



Weil. 1920. Geschlechtsspezifische Wirkungen von Keimdriisen- 

 extrakten. Pflilgers Archiv, 185, p. 33. 



