FISTULOUS WITHERS, ETC. 
883 
the other hand, in older animals it often happens that nothing 
is noticed amiss until perhaps several years after castration. 
Scirrhous cord is capable of producing all degrees of distur¬ 
bance, from simply a tumor in the groin or scrotum, causing a 
wide straddling gait, to a fatal pyaemia as noted in the two 
cases below, Nos. XI and XII. 
Case X .—Clinic No. 1958, October 10, 1899. Patient, a 
brown horse, weight 1100 lbs., 8 years old (same as case VIII, 
pQll-evil). Animal was castrated when two years old and since 
that time there has existed a tumor in the scrotal region, but 
this has never caused any inconvenience to the animal. The 
tumor was punctured with a trochar and canula and quite a 
quantity of serum drawn off. The tumor was then removed 
and found to be composed of the thickened walls of white 
fibrous tissue and containing some purulent debris within. 
Tubes of bouillon and agar were inoculated from the aspirated 
serum and from the pus within the cord. Tubes of bouillon 
and agar inoculated from the aspirated serum remained sterile 
as did also those inoculated from the interior of the cord. 
Case XI .—Clinic No. 2016, October 26, 1899. Patient, a 
grey yearling colt, castrated by block method in May last. The 
wounds have never healed and at times the end of the cord may 
be seen projecting through the scrotal wound. Animal placed 
on the table, anaesthetized and the affected cords removed. 
Right one was the largest, being composed of tough white fib¬ 
rous tissue. Upon section it was found to contain no pus, but 
was haemorrhagic in the centre and in some places very dark 
and discolored as if necrotic. The condition of the left cord 
was about the same as the right, only not quite as bad. Tubes 
of bouillon and agar were inoculated from inside the cords after 
removing them. From these cultures were isolated a strepto¬ 
coccus and a white micrococcus. 
This colt was returned December 4th, suffering from pneu¬ 
monia and discharging a considerable amount of pus from the 
nostrils. Diagnosis was pulmonary abscess, and tracheotomy 
was performed and the lungs irrigated with peroxide of hydro¬ 
gen. Media inoculated from the pus in the trachea gave pure 
cultures of a streptococcus. The post-mortem revealed the fol¬ 
lowing lesions : at posterior border of the right lung was an 
abscess some fourteen inches in diameter and containing nearly 
five liters of sanguinous pus. There existed adhesions between 
