282 The Farmer's Veterinary Adviser. 



of red blood-globules and liberation of their coloring mat- 

 ter to stain tlie blood and textures. This may be caused 

 by excess in tbe blood of water, bile acids (taurocliolates) 

 alkalies, nitrites, etlier or chloroform. It may result from 

 freezing, bumiug, (140° F.) and frictional and induction 

 currents of electricity. It is noticeable that the coloring 

 matter in the blood of solipeds ig very easily dissolved 

 and that of camivora only with difficulty. Henco the 

 frequency of a dusky or jaundiced appearance of the mem- 

 branes in horses and its comparative harmlessness, as 

 contrasted with similar conditions iu the dog. It is further 

 probable that the re-absorbed bile acids are transformed 

 into bile pigment in certain states of the blood. 



Symptoms. General coloration of all the tissues, but 

 especially the mucous membranes of a yellow, or over 

 large veins of a greenish hue, and also of the uriae. When 

 there is obstruction of the bUe duct, the dung is devoid 

 of bUe, foetid and often clayey in appearance, but if from 

 other causes it may retaia its natural color and odor. 



Other symptoms may appear dependent on the nature 

 of the attendant disease, or the poisonous action of the 

 bUe acids, and of various diseased products on the blood, 

 while the coloration itseK seems to be comparatively harm- 

 less. 



Treatment. This will depend on the nature of the cause. 

 As a general rule what favors the action of the bowels, 

 the free eHmiaation of the bile, and depletion of the portal 

 vein and liver will counteract the jaundice. SmaU daily 

 doses of podophyllin, (horse and ox 1 scr.) with one or 

 more ounces each of Glauber, Epsom, and common salt, 

 fls may be needful, will often act very efficiently. Or aloes, 

 jalap or calomel, may replace the podophyllin. Taraxa- 

 cum may be given either in diuretic or purgative doses, or 

 a herbivorous patient may be turned out on a pasturage 

 of dandelion ; succulent spring grass indeed is sometimes 

 aU that is needed. Diuretics are useful in effecting elim- 

 ination of the pigment, the carbonates and acetates of po- 



