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Extra resources for Advances in Water Pollution Research. Proceedings of the Second International Conference Held in Tokyo, August 1964

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This suggests that the fathead minnow is fond of such alkaline water. If it is true, we can present preference concentrations of OH" with TABLE 2. 38-8-44 8-91 8-90-7-50 800 10-38-8-24 8-64 912-7-68 7-86 10-25-7-38 802 9-75-7-13 7-20 10-38-7-40 7-85 9-38-7-20 7-50 10-22-8-53 905 9-48-7-65 808 9-56-905 9-21 905-8-45 8-80 9-62-8-76 918 8-85-7-80 8-59 Average Fathead minnow Pimephales promelas Bluegill sunfish Lepomis macrochirus Last two species were tested by author at School of Civil Engineering, Purdue University.

S. Department of Health, Education, and Welfare, Public Health Service, Robert A. Toft Sanitary Engineering Center, Cincinnati, Ohio) D R . COIN and his associates are to be congratulated for this extremely timely report on the detection of viruses, Mycobacteria, and Salmonellae species from various types of water and sewage effluents. It is well recognized that there is a serious need for development of new techniques for the detection and enumeration of micro­ biological pathogens in water and sewage.

NAKAMURA and K. TAKIZAWA, 1960 1st Oceanic Survey, Oct. ) —O- Subgroup I —A— Subgroup 2 2 3 4 5 6 7 8 9 10 II 12 Concentration of N a C I ( % ) FIG. 2. Response curves of 3 subgroups of the halophilic organisms to high concentration of sodium chloride. (R. SAKAZAKI, S. IWANAMI and H. ) Modern Microbiological and Virological Aspects of Water Pollution 13 patients was distributed widely in coastal sea water and sea fish, especially during the spring, summer and autumn. From extensive studies of enteropathogenic halophilic bacteria, R.

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