. Fig. 43.—Sexually mature segment of beef-measle tapeworm {Tcenia saginata). c.]j., Ciniiiis pouch with cirrhus ; ^ dorsal canal; , genital pore; n., lateral longitudinal nerves; ov., ovary; s^., shell-gland; i^., testicles ; 2^^., median uterine stem, enlarged (in part after Leuckart) ; v., vagina ; , ventral canal, connected by transverse canal; /c, vd., vas deferens; vg., vitellogene gland. have rendered it impossible for animals to obtain access to segments or eggs of the Tcenia saginata, beef measles will disappear. At present, in the countries where the disease is common, one

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. Fig. 43.—Sexually mature segment of beef-measle tapeworm {Tcenia saginata). c.]j., Ciniiiis pouch with cirrhus ; ^ dorsal canal; , genital pore; n., lateral longitudinal nerves; ov., ovary; s^., shell-gland; i^., testicles ; 2^^., median uterine stem, enlarged (in part after Leuckart) ; v., vagina ; , ventral canal, connected by transverse canal; /c, vd., vas deferens; vg., vitellogene gland. have rendered it impossible for animals to obtain access to segments or eggs of the Tcenia saginata, beef measles will disappear. At present, in the countries where the disease is common, one experiences a feeling of astonishment that it is not far more frequent; for experiment has shown that a person infected with one unarmed tapeworm expels with the faeces an average of four hundred proglot- tides per month, each proglottis or segment of the worm containing about 30,000 eggs, each of which is capable of developing into a tapeworm. G 2

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkwrjenkins