SOLEROSTOMA TETRACANTHUM. 
569 
and an abundance of good, nutritious food. The last month 
powd. nux vomica only was used, given in the feed. At the 
end of three months she was taken home, well fed, including 
a bucket of milk every day which she greedily drank, and 
after being turned to pasture in the spring soon fattened up 
and did remarkably well, and now at two and a half years of 
age weighs nearly twelve hundred pounds. I might add that 
during the last few weeks, since the beginning of cold 
weather, she shows symptoms of springhalt. Two or three 
other colts on the same farm were affected with the same kind 
of worms, but not so badly. 
Case II.—During the early part of last January was 
called to see a herd of twelve colts, consisting of yearlings 
and two-year-olds. They had not been thriving the previous 
summer and fall, and had been gradually losing flesh, but 
no particular attention was paid to them until at this time, 
when they began to be so reduced as to be unable to stand. 
One had died four or five weeks previous to my visit. Three 
were down, unable to rise, and pitiable looking objects in- 
feed. Five or six more were greatly emaciated, but could 
still get around. The remaining two or three appeared 
ively and well, but were also much reduced in flesh. The 
Free that were down presented about the same symptons as 
:ase No. i. The worst one died a few days later, and at the post 
nortem, several days after death, I found the whole mucous 
surface of the colon and caecum was literally lined with these 
small worms, sclerostoma tetracanthum. They were very 
oosely attached by anterior extremity to the mucous mem- 
)rane. The attachment was, however, very loose, as they 
xmld easily be brushed off. I did not find any encysted be- 
leath or within the mucous membrane. They had probably, 
>revious to death of host, all become sexually mature, and 
>assed into the intestinal canal. A portion of the small intes- 
ines, five or six feet in length, was filled with the large, round 
vorms (acaris megalocephala). There were two or three 
mndred of them, and were all matted together, completely 
illing the canal. They measured from four to twelve inches 
n length. This colt, though a small one, had, besides harbor- 
