556 SWINE IN AMERICA 



worms cannot grow or thrive to best advantage, be- 

 cause of being in an al^normal condition, and in such a 

 c(Midition must, further, be more susceptible to attacks 

 of (h'sease. Among the worms more common to the 

 hog are the Pin worm. Long Thread worm, Round 

 worm (most common), Thorn-headed worm, and the 

 Ki(hiey worm; also one called Sfroiigyliis (Icittatus, which 

 lives in the intestines, and Sfrongylus clongatus, which 

 lives in the lungs and air passages, and others of less im- 

 portance. Dr. D. Mcintosh, of the University of Il- 

 linois, in his work entitled "Diseases of Swine" treats of 

 these worms comprehensively thus : 



PIN WORMS 



"The seat of these worms is the rectum, but they are 

 sometimes found in the colon, and have been seen in 

 the stomach; on this account they have been called the 

 maw-worm. They are usually about 3^ inch long and 

 white in color; they multiply very rapidly; their eggs 

 are very small, and are often deposited on the grass, 

 and may be washed into the streams or ponds of water 

 and in this way enter the stomach and IdowcIs. They 

 are found in all the higher animals. They usually cause 

 itcln'ng at the root of the tail, or by reflex action cause 

 derangement of other parts of the body. Though pro- 

 ductive of great annoyance and even suffering, they do 

 not usually injure the health of the animal. 



"Clean out the rectum by injections of warm water. 

 Infuse two ounces of quassia chips in one pint of boil- 

 ing water, and when ci^ol. inject ft into the rectum; re- 



