GALL STONES IN SHEEP. 



Calculi are very rare. One described by Morton had a brown- 

 ish yellow color on its surface, and a white color spotted with 

 green internally ; it had a bitter taste, colored saliva yellow, and 

 melted when heated, diffusing the odor of musk. It weighed 

 twelve grains and contained 70 per cent, of cholesterin, calcic 

 phosphate and carbonate and the usual biliary elements. 



But if spherical calculi are rare, concretions and casts of the 

 bile ducts are common, especially in distomatosis. These are of 

 a yellowish, reddish, greenish or blackish brown, and form gran- 

 ular plates, or veritable cylindroid casts often firmly adherent to 

 the mucous membrane of the duct. 



In such cases the walls of the incrusted ducts are hypertrophied 

 and stand out on the back of the liver as white bands diverging 

 from the portal fissure. 



Apart from the usual symptoms of distomatosis no special indi- 

 cations have been observed. 



Treatment is primarily that of distomatosis, to which the gen- 

 eral measures advised for calculi may be added. 



GALL STONES IN SWINE. 



Characters. The calculi are spherical, of a dull red when dried, 

 rough or on their opposed surfaces flat, clear and glistening, 

 where they have become polished by friction. They are found 

 as a fine sand or as calculi the largest of which have been 75 

 grains, and of a high density (1303 to 1484). Briickmuller 

 found that they contained carbonate of lime and biliary mucus. 

 Verheyen found biliary resin, mucus, pigment and a little fat. 

 They are not rare in fat hogs in America. No diagnostic symp- 

 toms have been observed. 



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