Nymphomania in the Mare 



237 



draft work and may at any moment balk and tax the patience of 

 the driver very greatly. 



Periodical at first, nymphomania or the vices such as kicking, 

 balking and gripping of the reins by the tail, tend to become 

 constant and permanent and the animal degenerates into an in- 

 curable rogue, falls into the possession of low dealers and finally 

 finds her way into some inhuman hands, where she succumbs to 

 brutal work. 



Fig. 17. Cysto- FIBROUS Degeneration of Ovaries. 

 From insane mare. 

 C, C, C, Cysts. C, L, Corpus luteum. One-half size. 



Fig. 18. Cystic Degeneration of Ovaries. 



From Nymphomaniac Mare. 

 A, Sclerotic Ovary. B, Cystic Ovary. 



Examined macroscopically, the ovaries are usually large and 

 contain one to several cysts, varying in size from >^-2 in. or 

 more in diameter and containing a clear, faintly yellowish 

 lymph. The cyst walls are thick and very firm and the density 

 of the albuginea preserves to a large extent the even contour of 

 the ovarial surface, so that it is only in case of quite large cysts 

 that they project conspicuously beyond the general surface of 

 the gland. In some cases, the ovarian tissue proper vanishes 



