GALL STONES IN SWINE.
Characters. The calculi are spherical, 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). Bruckmüller found that they contained carbonate of lime and biliary mucus. Verheyen found biliary resin, mucus, pigment, and a little fat. They are rare in fat hogs in America. No diagnostic symptoms have been observed.