The Journal of Infectious Diseases, Vol. 37, No. 6 (Dec., 1925), pp. 523-527 (5 pages) A soluble specific substance has been extracted from hemolytic streptococci. The chemical reactions of this ...

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THE stripping-film technique of Pelc 1 for the autoradiography of radioactive substances incorporated in microscopic sections requires that the film should be put on in water. Consequently the method ...

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A water-soluble substance derived from Bulinus (Physopsis) globosus was tested against miracidia of Schistosoma haematobium to investigate the presence of a chemical attraction between host and ...

Many plastic products contain hazardous chemicals that can leach to the surroundings. In studies conducted in Sweden, a third of the tested plastic products released toxic substances, including five ...