the droppings. The symptoms occasioned by it are rather obscure
and are such as might arise from a number of other causes, namely,
colicky pains, depraved appetite, diarrhea or constipation, and general
unthriftiness. In a general way, the presence of parasites may be
suspected when an animal shows no fever but is unthrifty, debilitated,
and shows disordered bowel movements in cases where there is no evident
explanation in the way of feed, care, and surroundings.

_Treatment_ for the removal of this worm consists in the use of
anthelmintics such as tartar emetic, turpentine, and carbon bisulphid,
but as these remedies are essentially poisons intended to kill the worm,
and as their use by persons unused to determining conditions unfavorable
for their use is dangerous and likely to result in the death of the
animal or in permanent injury to the kidneys or other organs, it is
advisable to call in a veterinarian in such cases.

PINWORM (_Oxyuris equi_).--This is a rather large worm (Pl. V, fig. 1),
somewhat smaller than the foregoing and readily distinguishable from it
by the presence of a long, slender tail. It also occurs generally
throughout the United States, and except when present in large numbers
probably does very little damage. It inhabits the large intestine and
hence is difficult to reach with medicines administered by the mouth.
The use of a half ounce of gentian on the feed night and morning for a
week has been recommended, but the use of rectal enemas will give more
prompt and perhaps more certain results. These enemas may be made up
with one or two tablespoonfuls of salt to the pint, or infusions of
quassia chips, a half pound to the gallon of water, and injected into
the rectum once or twice a day.

STOMACH WORMS OF THE HORSE (_Habronema_ spp.).--These worms (Pl. V, fig.
4) occur in nodules in the mucous lining of the horse's stomach and are
credited with doing more or less damage. Their presence is not likely to
be diagnosed in the present state of our knowledge, but in case their
presence is determined or suspected in connection with the summer sores
noted later, tartar emetic is recommended. At least one of these worms
has an intermediate stage in the ordinary housefly, the fly becoming
infested while it is a larva developing in horse manure. Obviously,
therefore, any measures looking toward the eradication of the fly or the
proper disposal of manure will aid in the control and eradication of
this worm