358 CATTLE. 



•tines in the state of ova, or egcfs, would they be hkely to escape the 

 processes of digestion \vhich take phice in cattle. 



The Amphistoma conicum, a worm with a mouth, or the appear- 

 ance of one, at each end, and often found plentifully in the intestines 

 of birds, frequently inhabits the rumen and reticulum of cattle. It 

 is here of considerably larger size, and swells into a somewhat coni- 

 cal form. 



The TcBnia denticulata, the denticulated tape-worm, small in size, 

 and the neck becoming fine, and sometimes almost thread-like, ia 

 found in the fourth stomach and in the small intestines. 



The Lumhricus teres, the common intestinal round worm, lives in 

 the small intestines. 



A small species of the Strongylus is a frequent companion of the 

 last ; and another small long worm, the Tricocephalus affinis, with 

 its minute head attached to its lengthened and thread-like neck, has 

 been discovered in the caecum. 



The presence of these worms is rarely taken into account by the 

 practitioner, and few means are taken for their expulsion. 



Mention has already been made of the hydatid {Cosnurvs cere- 

 bralis) inhabiting the brain ; and others ( Cysticerci ienuicolles) 

 found in the liver, the lungs, the spleen, and in the peritoneum and 

 the pleura ; the Strongylus filaris, occupying the bronchial tubes of 

 cattle, and the Distoma hepaticum, the Jluke worm, swimming in the 

 biliary ducts. 



Homoeopathic treatment. — The chief remedy is china, in multiplied 

 doses, and then sulphur ; if there be a dislike for food, antimoiuum 

 crudum should be given. 



DROPSY. 



This is an accumulation of fluid in the cavity of the belly. The 

 whole of that cavity is lined with, and every viscus which it contains 

 is covered by, a polished glistening membrane, so that the contents of 

 the abdomen may glide over and move easily among each other, and 

 the injurious effects of friction be as much as possible avoided. In a 

 state of health there are certain vessels which continually secrete or 

 pour out the fluid that is requisite for this purpose, and which are 

 called exhalent vessels ; and there are others that take this fluid up 

 and carry it into the circulation when it has discharged its duty, or 

 when it is secreted in undue quantities, and which are denominated 

 absorbent vessels. Dropsy, then, is the consequence of the pouring 

 out of an undue quantity of fluid, and faster than the absorbents can 

 carry it away ; or it is the pouring out of the natural quantity while 

 the absorbents are paralyzed, or do not do their duty in removing it; 

 and in either way it accumulates in the abdomen. It is easy, there- 

 fore, to suppose, that when the lining nt^mbrane generally, or a por- 



