MALE ACCESSORY REPRODUCTIVE ORGANS 237 



(p. 233), the clotting which causes the foj-mation of the ' ' bouchon ' ' 

 in Rodents is beheved by t'amus and Gley ' to be due to a fer- 

 ment (■' vesiculase ") which is present in the prostatic fluid. 

 The removal of the prostate in Steinach's experiments had 

 no effect in diminishing sexual desire. 



Walker - has also adduced experimental evidence pointing 











Fig. .^7. — Section through prostate glaucl of luonkey. 

 «, tubular ah'eolus lined with epithelinra ; h, alveolus containing concretion 

 in lumen ; f\ bundle of muscular fibres in connective tissue ; d, blood- 

 vessels in stroma. 



to the conclusion that the prostatic fluid of the dog stimulates 

 the sperms to more active movement. 



Iwanoff's experiments ^ (see p. 234), however, show that 

 spermatozoa which have never come into contact with prostatic 



' Camus and Gley, loc. cit. 



^ Walker (G.), " Beitrag zur Kenntniss dor Anatomie und Physiologic der 

 Prostata beim Hunde," Arch. f. Anal. u. Plv/s., Anat. Ablh., 1S99. 

 ' Iwanoff, loc. cit. 



