262 
GEORGE DITEWIG. 
Worm .—For a very complete description of the parasite I re¬ 
fer my hearers to a very able article by Dr. J. F. Winchester 
in the American Veterinary Review, Vol. XVII, No. 7. 
Body gray or brown, shaded with red, female larger and 
thicker than male, length varying from three-fourths of one 
to two inches, depending upon sex and maturity. 
The following is from Williams : 
“ The sexually mature adults found in the caecum and 
colon ; seldom in the duodenum, pancreas and tunica vagina¬ 
lis of the testes. The larval forms in aneurisms of the intes¬ 
tinal arteries, the eggs come out with the excrements and de¬ 
velop free living larval forms in water, and thence into the blood 
vessels, where they cause aneurisms; becoming sexually ma¬ 
ture, they leave the aneurisms and bore their way into the ali¬ 
mentary canal where they copulate.” 
In the last week of November, of 1894, I was called to the 
farm of E. Brown, a friend and patron, place about fourteen 
miles distant, to examine a herd of colts. Received the follow¬ 
ing history : In the spring the colts had been placed in a rented 
pasture about four or five miles distant, and there remained 
until within a few days previous to my visit. While in pas¬ 
ture they had been visited at different times by the owner, 
who noted that they were in poor condition, and unthrifty. 
This was attributed to short pasture during the summer 
drought. They had not, however, been visited for quite a 
period previous to November ; in the last week of that month 
the keeper of the pasture informed him, that one of the colts, 
a two-year-old, had died, the rest doing very poorly. They 
were promptly brought home and placed in the comfortable 
box stalls in which I found them. 
% 
The pasture was described as rolling timber land, with a 
portion of lowland. Water was supplied by a spring, which 
during the summer drought ran low, yielding barely enough 
to replenish a few stagnant pools. After a careful examina¬ 
tion of the herd, then consisting of three yearlings and two 
two-year-olds, I was forced to the conclusion that a more 
sorry looking and dejected lot of colts it had never been my 
lot to see. Weak and very much emaciated, tucked in the 
