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Article
Parasites
Animal Parasites.
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Article
Secretory Activity by the Scolex of Echinococcus granulosus in vitro
DURING recent work on the in vitro cultivation of the hydatid organism, Echinococcus granulosus, observations were made on living 35-day-old strobila freshly removed from the intestine of dogs. Strobila were exam...
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Article
Endocrine Control of Sexual Reproduction in Opalina ranarum Parasitic in Rana temporaria
IT is well known that opalinids parasitizing the recta of Amphibia multiply asexually by binary fission during most of the year. During the breeding season, however, the reproductive pattern changes to a sexua...
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Article
Development of Cestodes in vitro: Production of Fertile Eggs; Cultivation of Plerocercoid Fragments
PLEROCERCOID larvæ of Schistocephalus solidus and Ligula intestinalis, when removed aseptically from their respective fish hosts by means of a special technique, develop into sexually mature tapeworms if cultured...
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Article
Golgi Apparatus in Astasia Harrisii
IT is well known that in numerous Protozoa, the contractile vacuole is associated with an osmiophile cortex, which is believed to be homologous with the Golgi apparatus of metazoan cells. In Paramecium, it has...
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Article
Nomenclature of Fowl Genetics
THE nomenclature of fowl genetics has become somewhat confused in recent years. So many characters have been investigated that the difficulty of designating symbols for the corresponding genes has increased co...
