3 68 



Diseases of the Genital Organs 



slightly turbid. Firm coagulum formed within thirty min- 

 utes. The sperm cells were decreased in numbers and non- 

 motile. There was a slight microcephalia and many loos- 

 ened heads throughout the sample. 



April 5, 1920. Physical examination revealed no new 

 macroscopic changes. About twenty mils, of turbid, semi- 

 translucent semen were obtained, containing considerable 



Fig. 116 — Spermatozoa from Bull No. 7. 



Many with small heads and atrophic nucleus. 



epithelial debris. A firm coagulum appeared almost imme- 

 diately after obtained, leaving the main part of the mucus 

 colorless and translucent. Sperm cells, entirely non-motile, 

 were present in numbers not to exceed twenty-five to fifty 

 per cent, of normal. Fifty per cent, of the spermatozoa 

 were without tails. Almost all were microcephalic, espe- 

 cially those which were tailless. In these there was a very 

 marked diminution in size and uniform tapering of the 

 basal portion of the head. In most heads the nuclear por- 



