THORACIC CHOKE. 
285 
it appeared in the mucous membrane. It is magnified about 
fifty diameters. 
I may also state that these horses of which I speak were 
pastured on low land and received their drinking water from 
a well not more than three feet deep and situated in the lowest 
part of the field. The water was dipped up with a pail into 
a trough. The owner of the horses, who is a reliable man of 
perhaps more than ordinary intelligence, informed me that 
when they removed the mud from the bottom of the trough 
thousands of small red worms apparently identical with those 
passed by the horses were found in it. 
THORACIC CHOKE. 
By W. H. Gribble, D.V.S., Washington Oourt House, Ohio. 
A Paper read before the Ohio Veterinary Medical Association. 
Mr. President and Fellow Workers: 
I shall not attempt, nor do I deem it necessary to apolo¬ 
gize to you if this paper is not up to the average status of such 
work, but will simply say: that I received the request from 
the Secretary to prepare a subject for discussion, during my 
busiest season of the year, and the little time I have had for 
preparation simply produced this paper, which I hope will be 
sufficient to open discussion on a subject very interesting to 
me, and that thereby we might, obtain mutual benefit. The 
subject of this paper is one of great importance, and of more 
than common occurrence; one, in which the death rate is ex¬ 
ceedingly high, and which to me is the greatest bug-bear of 
my individual practice. 
I do not know whether this be from an inability to cope 
with the trouble from lack of professional knowledge ; or that, 
mine being a country practice, and the animals usually first 
treated empirically, too much time has generally passed be¬ 
fore I am honored with the privilege of treating them ; or 
lastly^, whether my complaint be not the complaint of all my 
associates and fellow craftsmen ; but what I do know is, that 
nearly every animal brought to me for treatment suffering 
