THE HORSE—THE DIGESTIVE SYSTEM. 79 
INTESTINAL WORMS. 
Several species of worms are found in the intestines of the horse, amons 
which may be named (1) the long white worm, from six to twelve inches 
Jong, resembling the common earth-worm; (2) the slender one, from two to 
four inches long; (3) the small, active, needle-like worm, found in great 
numbers in the large intestines and rectum, causing great irritation, and be- 
ang darker than those named above; (4) the tape-worm, white and jointed 
into regular sections; (5) the long threadworm. Two views are held re- 
‘garding the cause of worms. One is that they are injurious in themselves 
and wholly foreign to the animal’s 
constitution. The other is that they 
‘are due to a derangement of the mu- 
cous membrane and its secretions, 
favorable to the growth of their 
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RuBBING THE NOSE DURING THE PickING THE HariR WHEN WORMS ARE 
PRESENCE OF WORMS. PRESENT. 
germs. In support of the latter view it has been remarked that worms are 
seldom found in healthy horses, or at least not in large numbers, while in 
horses delicate or poorly f.d they exist in great numbers. 
Symptoms.—Appetite at one time poor or wholly lost; at another vora- 
cious; low spirits; coat loses its gloss; the horse is hide-bound, licks the wall 
and cats dirt; dry, yellow or white matter about the anus, with itching, caus- 
ing the animal to rub his tail or switch it about; dung often covered with 
mucus; worms in the dung are the unmistakable symptom. 
TREATMENT.—Give salt in the food, and liquor arsenicalis, thirty drops 
three times a day. Or give one-fifth of a grain of arsenic night and morn- 
ing in a little bran-mash; if it fails to effect a cure after two or three weeks, 
give five grains of sulphate of iron night and morning. In place of either 
of these courses, it may be well to give two powdered Croton beans in a 
handful of bran-mash, and a half-pint of linseed oil every morning. This 
has often been effectual, The Croton beans are also highly recommended 
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