. Fig. 31.—An isolated pork-measle bladder woiiu (Ci/sticcrcus ceUulos(c), with extended head, greatly enlarged. (Stiles, Report Bureau of Agriculture, 1901.) Causation. The cause of cysticercus disease in the pig ma}' be summed up in one phrase—viz., ingestion of eggs or eml)ryos of T<enia soUnm. Young animals alone seem to contract the After the age of eight to ten months they appear almost entirely proof against it. It is very rare in animals reared in confinement, but is relatively

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectveterin, bookyear1920