Cystic Degeneration of the Ovaries 171 



In how far the frequently occurring ovarian cysts in new born 

 calves and the presence, in ovarian follicles, of the coccidiiun ovi- 

 formce, first recognized by Professors Rubeli and Guillebeau and 

 Dr. Simon, exert an influence upon the cystic degeneration of 

 the ovary, requires further investigation. 



A disease which, according to our view, certainly possesses 

 great etiologic importance is the granulat venereal disease {va- 

 ginitis et metritis follicidaris infectnosa) because the relative fre- 

 quenc}' of diseases of the ovary and uterus is much greater after 

 the appearance of that plague than before ; likewise, one finds, in 

 cows and heifers affected with diseases of the ovaries, extraordi- 

 narily severe symptoms of vaginitis et metritis follieularis 

 infectuosa . 



In one case we observed primarih', in a cow, a prolapse of the 

 vaginal portion of the uterus and, four weeks later, a large cyst 

 in each of tlie ovaries. 



Undoubtedly, also, the normal occurrence of birth and unilat- 

 eral castration exerts an important influence upon the formation 

 of ovarian cysts. 



It is highly interesting to note that the data drawn from over 

 200 nymphomaniac animals observed by us during the year 1905, 

 among which were three heifers, show that 92^ were aff'ected 

 with cystic ovaries and, among these, were found 4 head which 

 had aborted and later suffered from retention of the placenta, 

 while all the others, aside from the 3 heifers, had completed the 

 normal duration of pregnancy. 



Of the 92 f/( above mentioned, 5 cows had suffered from de- 

 layed expulsion of the after birth and secondary septic endome- 

 tritis, 4 from torsion of the gravid uterus and 7 from parturient 

 paresis. So far as we could determine, these cows, which later 

 became nymphomaniac had given birth to approximately the 

 same number of male and female young. 



It is worthy of record, also, that, in one ca.se, there was found 

 a follicle as large as a hazelnut in the left ovary of a cow which 

 had been slaughtered during the sixth month of pregnancy be- 

 cau.se of agalactia, she being fat. 



vSVMPTOMS. 



For decades past, the symptoms induced by ovarian cysts have 

 been designated by the terms bulling or nymphomania. In the 



