. [Scientific lectures]. on, as hundreds of specimens have been seen to co-existentirely free from cysts. Fig. 38 shows the Trichina when thus in-cysted in the muscles (magnified). The number found in any one subject varies,but Leuckart estimated that one ounce of cat-flesh which he observed must have harboredmore than 300,000 parasites. Even if we as-sume that the forty-five pounds of musclewhich an ordinarily healthy man possesses 4/were infested with only 50,000 Trichinae to theounce, they would still contain more thanthirty millions. Fig jg. The adult Trichina magnified is shown in Fig. 39
. [Scientific lectures]. on, as hundreds of specimens have been seen to co-existentirely free from cysts. Fig. 38 shows the Trichina when thus in-cysted in the muscles (magnified). The number found in any one subject varies,but Leuckart estimated that one ounce of cat-flesh which he observed must have harboredmore than 300,000 parasites. Even if we as-sume that the forty-five pounds of musclewhich an ordinarily healthy man possesses 4/were infested with only 50,000 Trichinae to theounce, they would still contain more thanthirty millions. Fig jg. The adult Trichina magnified is shown in Fig. 39- The sexually mature male Trichina, accord-ing to Cobbold, is about one-eighteenth of aninch long, while the adult female is one-eighth ;the body is rounded and slender, and the headvery narrow and sharply pointed. The modeof reproduction is viviparous. The muscularparasite, when introduced into the alimentaryFig. 39- canal of man or animal, is set free in the process of digestion, and in two days time reaches the adult.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
