17 
The second animal was 2 years old, and in fair condition. 
He had been taken up, fed and treated for a month in the 
stable, but he was injured so by throwing himself in the 
stable that he had to be turned out in the pasture to live or 
die. I found the liver, heart, kidneys and spleen normal. 
The lungs were congested, and covered with dark, livid spots 
about the size of a twenty-five cent piece. The stomach and 
intestines did not have a normal appearance, but were pale 
and apparently bloodless. The small intestines were cut with 
a scissors, and were found filled with spindle-shaped worms 
about 6 to 8 inches long. About one quart of them, {Ascaris 
Me^alocephala) was obtained. In cutting the intestines, be¬ 
fore we came to the worms, I would find a green mucus dis¬ 
charge ; as many as six of them would be found in one place, 
completely closing up the intestines. Botswere found in large 
quantities. The reason why so many parasites were found, 
as I think, is because the animals have to get water wherever 
they can find it, and in many cases drink stagnant, filthy stuff 
that is loaded with many forms of animal life. The brain was 
examined, and the usual clot of blood was found at the base. 
The colt was owned by Mr. J. 
Post mortem No. 3 took place about thirty miles from 
Fort Collins. The owner, Mr. S., had about 100 head of 
horses. The colt was 3 years old and had been affected the 
year before. He had been put up in good pasture about one 
month before I saw him. The liver, lungs and kidneys were 
more or less diseased. The liver was tuberculous, the lungs 
congested, the kidneys were filled with ulcers so the pus could 
be scraped off when cut into. The clot of blood was found at 
the base of the brain. As the animal had been on green feed 
for one month, but few parasites were found. Samples were 
brought to the laboratory for microscopic examination. 
The Bureau of Animal Industry at Washington has kindly 
consented to assist me in identifying the parasites, and in the 
miscroscopic examination of the affected parts. ‘‘Franks” 
were sent me to send the specimens to Washington for iden¬ 
tification. 
In all the examinations thus far made, I have found cause 
enough to account for the symptoms. The more I examine 
the loco question, the more I am persuaded that we must 
look for some other cause besides the loco weed. The loco 
weed is so common in and about Fort Collins that if it was 
the cause of the trouble, animals in this vicinity must be af¬ 
fected with the so-called loco disease ; but I have not been 
able to find a single specimen in the neighborhood, while the 
loco is as abundant here as in the localities where the animals 
