346 INTERNAL SECRETIONS 



egg of a sea urchin also produces a substance stimulating the 

 movements of the spermatozoa. 



The question as to the dependence of the spermatozoa both 

 in their vitality and in their movements upon different factors 

 is of a practical interest, since it is very probable that chemical 

 substances present in the secretion of the vagina or the cervix 

 uteri may exert a considerable influence. This suggestion was 

 supported by Weil (1921). Weil's experiments are not very 

 convincing, but the question deserves further experimental 

 consideration. 



BIBLIOGRAPHY FOR CHAPTER VIII. 



[* Not seen in the original.] 



Amantea. 1920. Sulla funzione secretoria delle vesichette seminali. 

 Gongres de Physiologie, Paris. 



et Kjizy§kowsky. 1920 b. Osservazioni sulla biologia degli 



spermatozoi. Congrks de Physiologie, Paris. 



* et Krzyskowsky. 1921. Ricerche fisiologiche sugli sperma- 

 tozoi. Riv. de hiol., 3, p. 569 (quoted from "Berichte"). 



Benoit. 1920. Sur 1' existence de phenomenes secretoires dans le 

 canal deferent. G. R. de la Soc. de Biol., 83, p. 1640. 



BiEDL. 1913. Innere Sekretion, Vol. II., 2nd edit. 



♦BOTTCHER. 1920. tJber die Bedeutung der Sekrete der mannlichen 

 akzessorischen Geschlechtsdriisen. MiXnch. med. Wochenschr., 

 67, p. 45 (quoted from "Berichte"). 



♦BoGOSLAvsKi and Korencevski. 1921. On the influence of the 

 internal secretion of the testicle and of the prostate on the 

 metabolism. Russki Fisiol. J urn., 3, p. 48 (quoted from 

 "Berichte"). 



BusQUET. 1910. La fonction sexuelle. Paris. 



♦Camus et Gley. 1896. Action coagulante du liquide prostatique 

 sur le contenu des vesicules seminales. G. R. de la Soc. de 

 Biol., 48, p. 787. 



* 1897. Note sur quelques faits relatifs a T enzyme prostatique 



(vesiculase) et sur la fonction des glandes vesiculaires. Ibidem, 

 p. 787. 



1899. Role des glandes accessoirs de I'appareil genital male dans 



la reproduction (recherches de physiologie comparee). Bull, 

 du museum d'hist. natur., p. 253. 



