JB. F. KAUPP. 
m2 
stomach, 80 per cent.; ascaris megalocephala, io per cent.; gastro- 
philus equi larva in stomach, io per cent.; spiroptera microstoma, 
io per cent.; sclerostoma tetracanthum, 20 per cent.; filaria papil- 
losa, 70 per cent. 
Of twenty-four autopsies held upon all ages of chickens the 
following was the result: Heterakis papillosa, 25 per cent.; men- 
opon biseriatum, 12 per cent.; cytodites nudus, 8 per cent.; ascaris 
inflexa, 5 per cent.; taenia infundibuliformis, 4 per cent. 
Parasitism is of more importance than is generally given 
credit by the average practitioner. Many of the parasites give 
off' poisonous proteid-like poisons which, when absorbed in suffi¬ 
cient quantities, produces constitutional disturbances. All have 
noted the effect of the oxuride or pin worm. The writer is of 
the opinion that many of us are too lax in o.ur autopsy work in 
the search for parasitism. In the past year every case examined 
for aneurysm of the great mesenteric artery has proven positive. 
In one of these cases the horse was only eleven months old. An 
aneurysm was found the size of the finger and in which coagulum 
was found four larval strongiles. Some of these aneurysms are 
three or four inches from the point where the artery springs 
from the posterior aorta. 
The Sarcocystis miescheri in all probabilities causes more in¬ 
jury among cattle and sheep, and possibly other animals, than 
has heretofore been supposed, and may be the cause of some of 
the occult troubles. In an outbreak among sheep where several 
had died, two were autopsied and the skeletal muscles as well as 
the heart were found to be thoroughly studded with this parasite. 
The writer has found this parasite in three beef hearts during the 
past year which are believed to have contributed disease from 
which these cattle died. In one heart intense congestion was ob¬ 
served. 
Our secretary has asked me to make a report of some of my 
investigations into poultry diseases during the past four years. 
This I have reluctantly consented to do. 
White Diarrhoea of Chicks —There are two causes of 
white diarrhoea in chicks as I have found it. First, the bacillary 
form due to the Bacillus pullorum , a very short, plump, rod- 
