Diseases of the Digestive Organs. 271 



lus and Dochmius Trigonoceplialus, each under one-liail 

 inch ; and Tricocephalus Depressiusculus, the thick part 

 of which is about one-half inch. One -worm of the cat, 

 Ascaris Mystax, one to three inches long, deserves men- 

 tion because of its being harbored also in the human intes- 

 tine. 



General Symptoms of Intestinal Worms. These are 

 shown when worms are present in large numbers, when 

 they attach themselves to the mucous membranes or when 

 they bore through these to reach other parts. There are 

 general signs of ill-health, poor condition, pot-belly, hide- 

 bound, a scurfy, dry state of the skin, often with itching, 

 irregular and usually voracious appetite, foetid breath, di- 

 arrhoea alternating with costiveness, the passage of mu- 

 cus with the dung, slight, colicky pams with tympany, es- 

 pecially in the morning before feeding, a puffy sweUing 

 and itchiness of the anus, which is often surrounded with 

 a fur of dried mucus, and above all, the passage of the ivwms 

 or their eggs. 



In the horse there is often a tendency to elevate the up- 

 per lip and to rub it against wall or manger, to lick earth 

 or lime, or to shake the tail or rub out the hair about its root. 

 There may, though rarely, be severe flatulent or spasmodic 

 colic, enteritis or peritonitis. 



In cattle there are advancing emaciation, depraved or va- 

 riable appetite, unpaired rumiaation, colics, tympaniea 

 aixd foetid breath. 



Sheep lose appetite, scour, suffer from thirst, wasting, 

 bloodless eyes, clapped, unhealthy or shedding wool, a 

 desire to eat earth, itching anus shown by frequent shak- 

 ing of the tail, and finally dropsical effasions in the chest 

 and belly and beneath the lower part of the body. They 

 become dull, hopeless-looking and leave the flock. 



Sioine beside the general symptoms have unusual vorac- 

 ity, and yet lose flesh, cough, scour, start from rest or 

 sleep with a sharp cry, scream excessively just before 

 feeding, have coHcky pains, tender abdomen and vomiting. 



