The use of DDT as an anopheline larvicide has caused considerable concern in some groups because of the potentialities of destruction of other, more desirable forms of life in ponds and lakes. A series of studies has been undertaken to determine the extent, if any, of such damage. Among the organisms under consideration, fish are of prime importance to wildlife and sportsman interests, and might be affected in any of several ways: direct damage by poisoning and killing, reduction or destruction of desirable food organisms, or ecological changes resulting in unfavorable environmental and growth conditions. Ecologically, there are three groups of important fish-food organisms in areas commonly larvicided: the fauna of the bottom, the plankton organisms, and the surface and shallow-water forms. The present paper, the third in a series reporting on the effects of DDT larviciding on wildlife, is a report on the plankton, which is the chief food source for several species of fish and most fish fry. The present study was begun in the spring of 1945 on ponds located in the vicinity of Savannah, Ga. The ponds were all shallow and small, being typical of ponds in which breeding of Anopheles quadrimaculatus occurs.
Influence of a Public Health Program on a Rural Community E. L. Bishop CopyRight https://doi.org/10.2105/AJPH.31.1.96 Published Online: October 03, 2011
A Symposium on Human Malaria E. L. Bishop CopyRight https://doi.org/10.2105/AJPH.31.12.1321 Published Online: August 29, 2011
Public Health Degrees and Certificates Granted in 1938 and 1939 Report of the Committee on Professional Education E. L. Bishop, Allen W. Freeman, John E. Gordon, Pearl McIver, George H. Ramsey, Wilson G. Smillie, John Sundwall, Ralph E. Tarbett, Henry F. Vaughan, W. S. Leathers, and Reginald M. Atwater CopyRight https://doi.org/10.2105/AJPH.29.12.1338 Published Online: August 29, 2011
Educational Qualifications of Health Officers Report of the Committee on Professional Education W. S. Leathers, Reginald M. Atwater, Eugene L. Bishop, Allen W. Freeman, John E. Gordon, Pearl McIver, George H. Ramsey, Wilson G. Smillie, John Sundwall, Ralph E. Tarbett, Henry F. Vaughan, Allen W. Freeman, John E. Gordon, Ira V. Hiscock, Henry E. Meleney, George H. Ramsey, Wilson G. Smillie, and Henry F. Vaughan CopyRight*The Committee on Professional Education of the American Public Health Association Publishes this Report to permit the members and Fellows of the Association to review it and to offer criticisms and suggestions in the further consideration of the Report. https://doi.org/10.2105/AJPH.29.7.787 Published Online: August 29, 2011
Desirable Qualifications of Nurses Appointed to Public Health Nursing Positions in Industry Report of the Committee on Professional Education Affiliation W. S. Leathers, Reginald M. Atwater, Eugene L. Bishop, Allen W. Freeman, John E. Gordon, Pearl McIver, George H. Ramsey, Wilson G. Smillie, John Sundwall, Ralph E. Tarbett, Henry F. Vaughan, Pearl McIver, Ellen L. Buell, Ruth Hubbard, Virginia Jones, George H. Ramsey, Wilson G. Smillie, and Katherine Tucker CopyRight*The Committee on Professional Education of the American Health Association publishes this Report to permit the members and Fellows of the Association to review it and to offer criticisms and suggestions in the further consideration of the Report. https://doi.org/10.2105/AJPH.29.7.789 Published Online: August 29, 2011
Public Health Degrees and Certificates Granted in 1937 W. S. Leathers, E. L. Bishop, Allen W. Freeman, Pearl McIver, Stanley H. Osborn, Clarence L. Scamman, Wilson G. Smillie, John Sundwall, Ralph E. Tarbett, Henry F. Vaughan, and Reginald M. Atwater CopyRight https://doi.org/10.2105/AJPH.28.7.863 Published Online: August 29, 2011
Public Health Degrees and Certificates Granted in 1936 Affiliation W. S. Leathers, Pearl McIver, Wilson G. Smillie, E. L. Bishop, John Sundwall, Allen W. Freeman, Ralph E. Tarbett, Stanley H. Osborn, Clarence L. Scamman, Henry F. Vaughan, and Reginald M. Atwater CopyRight https://doi.org/10.2105/AJPH.27.12.1267 Published Online: August 29, 2011
In spite of active control measures, typhoid fever still remains a rural problem of public health importance, particularly in the Southern States. Although the mode of spread of typhoid has been known for many years, comparatively little has been done toward thorough investigation and control of endemic cases that so frequently occur in rurai sections. Immunization and sanitation campaigns by State and local health agencies have resulted in a marked reduction in the number of typhoid cases; yet there are comparatively few accurate data available showing the relative value of the several measures employed in a rural typhoid-control program. As a consequence, it was felt that an analysis of the Williamson County program which has been conducted over a 13-year period might afford an excellent opportunity to appraise the value of, first, immunization and case control, and, second, immunization and'case control plus a general sanitation and educational program. During the latter part of the program (1930-35), some consideration was given investigation to determine the actual source of case infection and toward more adequate case control measures, the efforts and activities of the entire county health department personnel being routinely utilized in some phase of this study, which was made possible through a supplementary grant by the Rockefeller Founda'tion and advisory assistance by Dr. George H. Ramsey, of Johins Hopkins School of Hygiene and Publio Health.
Public Health at the Cross-roads E. L. Bishop CopyRight*Presidential Address, delivered at the First General Session of the American Public Health Association at the Sixty-fourth Annual Meeting in Milwaukee, Wis., October 7, 1935. https://doi.org/10.2105/AJPH.25.11.1175 Published Online: August 29, 2011
Elements Involved in Determining the Qualifications of Health Officers E. L. Bishop CopyRight*Read at a Special Session on Professional Education of the American Public Health Association at the Sixty-second Annual Meeting in Indianapolis, Ind., October 10, 1933. https://doi.org/10.2105/AJPH.24.8.859 Published Online: August 29, 2011
The TVA's New Deal in Health E. L. Bishop CopyRight*Read before the Health Officers Section of the American Public Health Association at the Sixty-third Annual Meeting in Pasadena, Calif., September 4, 1934. https://doi.org/10.2105/AJPH.24.10.1023 Published Online: August 29, 2011
Modern Trends in Public Health Administration E. L. Bishop CopyRight*Read before the Health Officers Section of the American Public Health Association at the Sixty-second Annual Meeting in Indianapolis, Ind., October 9, 1933. https://doi.org/10.2105/AJPH.24.6_Pt_1.591 Published Online: September 01, 2011