REPORT OF CASE. 
21 
From that time is seen a large quantity of small spores, with 
double lining and granular contents, which by their formation in 
the culture cannot be considered but as animal cells in the way of 
regression. The same element may then be easily detected in 
fresh and uncultivated tissue. Whether this fungus is the primi* 
tive cause of the disease, is a fact, which further experiment and 
observation must decide. 
REPORT OF CASE. 
A CASE OF PERSISTENT HYMEN IN THE COW. 
By L. P. Chase, Ashland, Ohio. 
On the 15th of February, I was called to see a cow, three 
years old, a primipar, that had been in labor ten or twelve 
hours, and was not making any progress towards delivery. Upon 
making an examination I found a duplicature of mucous mem¬ 
brane of the vagina stretched across the. passage, about four 
inches from the vulva, forming a complete septum, except a small 
opening in the centre, about half an inch in diameter. This 
membrane was sufficiently strong to resist the expulsive efforts of 
the animal. 
By manipulation, I was able to introduce my fingers, one 
after another, through the orifice, and was able to lacerate the 
membrane sufficiently without the use of the knife. 
After rupturing the foetal membranes and allowing the liquor 
amnoi to escape, I made an examination of the foetus, and found 
it in proper position, and by applying gentle traction to the legs 
during the expulsive efforts of the animal, delivery was soon 
effected. 
The calf made a few convulsive struggles after being expelled ; 
the heart beat regularly at first, but respiration was suspended, 
and all efforts to produce it failed. The cow is doing well. Per¬ 
sistent hymen, as far as I can learn, is exceedingly rare, at least 
where it offers any resistance to parturition. 
