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dition ; (2) that ovariotomy performed on tuberculous cows may 
be complicated with peritonitis, metro-peritonitis, sometimes 
with nymphomania, even when the cow is suffering with this dis¬ 
ease before being operated upon ; (3) that it is indicated to resort 
to the tuberculin test before operation ; (4) that the symptoms of 
nymphomania may continue in a tuberculous cow after ovari¬ 
otomy ; (5) that the castration performed on a sound cow has a 
positive influence on the recovery from nymphomania, upon the 
increase of the milk especially in nymphomanic animals, upon 
the length of the lactation, upon the tendency to fattening ; (6) 
that it probably increases the richness and quality of the milk 
and improves it by rendering it more pleasant to the taste and 
more uniform in its composition ; (7) that the milk secretion 
lasts for at least one year in the same amount as it was at the 
time of spaying. If it varies, it is due to other causes, such as 
change of season, or diet, etc. ; (8) that it is advantageous to per¬ 
form it during the period of increase of the milk secretion or 
when it is at its maximum. 
Paralysis of the Tail and of the Sphincters in a 
Mare [By Mr. Raymond ].—With the exception of an attack 
of strangles, a mare has never been sick. Hired by a gen¬ 
tleman from a breeder for his use, she became unfit for work by 
the gradual development of a series of symptoms which in some 
six months assume the following aspect: Quite large oedema 
around the sphincters, which are swollen, prominent and droop¬ 
ing ; anus elliptical in form, prominent but flabbyvulva re¬ 
duced in height, open, exposing the mucous membrane and the 
clitoris to view ; tail dropping, inert and entirely unusable, it 
' hangs between the legs ; its skin, muscles and articulations are 
not the seat of pain ; the anaesthesia of the skin extends to the 
perineum and part of the croup ; the mucous membrane of the 
vulva and rectum are no longer sensitive to the touch ; rectum 
full of excrement, its muscular coat does not react to rectal ex¬ 
ploration ; on the croup, at a level with the summit of the 
sacral vertebrae, there is a circular swelling, in shape of a flat¬ 
tened cone, slightly cedematous, excessively painful; on each 
side of it, the croup is also the seat of excessive hyperasthesia. 
Rectal examination reveals nothing abnormal. The animal 
walks naturally, but in trotting is stiff behind. Placed under 
treatment she improved some, but ultimately died of colic. At 
the post-mortem nothing abnormal was found except on the 
bladder. Its walls were four times their normal thickness, its 
mucous membrane thickened, bosselated, purplish and covered 
