. Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributed . Fig. 80.— Measly Pork, showing diagrammatically its appearance by the naked eye. and the worm examined by a powerful hand-lens—whenat one extremity will be found the blunt square headprovided with a sucker at each angle, and a fringeof booklets placed centrally ; these latter are verycharacteristic, and must always be found before adefinite diagnosis is ventured Fig. 81.—Head of Cyst cercus Cellulosse X about 40 diame
. Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributed . Fig. 80.— Measly Pork, showing diagrammatically its appearance by the naked eye. and the worm examined by a powerful hand-lens—whenat one extremity will be found the blunt square headprovided with a sucker at each angle, and a fringeof booklets placed centrally ; these latter are verycharacteristic, and must always be found before adefinite diagnosis is ventured Fig. 81.—Head of Cyst cercus Cellulosse X about 40 diameters. The younger pigs are especially attacked, and duringlife the earliest evidence is aflorded of the parasites, bythe presence of one or more small cysts in the conjunc-tiva, or in the loose tissue of the frsenum linguae. Afterdeath the liver, and the muscles of the shoulders inter-costals and loins, are seen to be chiefly aflected. MEAT. 357 The cysticercus of the ox—Cysticercus bovis or beef-measles—chiefly affects the calf; it possesses a flathead armed with no booklets, but simply suckers,around which there is frequently a considerable depositof pigment. It develops into the adult tape-wormcalled Taenia mediocanellata, which appears to bemore prevalent in this country than Taenia solium. Trichina spiralis.—This parasite has been foundin the flesh of many different animals, but most com-monly, by far, in that of pigs ; oxen and sheep do notsuffer from attack by these nematodes.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphiablakis
