AAAS COMMITTEE SYMPOSIA Norman Bauer Memorial Symposium on the Hazards of Todine-131 Fallout in Utah (27 Dec.) Arranged by E. W. Pfeiffer (University of Montana). Studies now being conducted in Utah and elsewhere by the U.S. Public Health Service, the University of California, and other agencies are contributing significantly to the understanding of certain biomedical effects of radioactive fallout. It is the purpose of this symposium to bring to the scientific community and the lay public results of studies on the biomedical effects of acute and chronic exposure to radionuclides emanating from nuclear explosions and other sources of radiation. The need for such studies was first brought to public attention in Utah in 1957 by the late Norman Bauer, Professor of Chemistry, Utah State University. This symposium is held in honor of the memory of Bauer and will emphasize the responsibility of such independent scientists to increase public understanding by providing factual information on these and other hazards which result from our advanced scientific technology. Lytt I. Gardner, Barry Commoner, Arthur R. Tamplin, Edward Weiss, Marvin L. Rallison, Robert A. Conrad, Oliver Johnson, Martin Sonnenberg, Herman T. Blumenthal, in 1946 when they spread dry-ice on a cold box cloud and observed snow falling to the bottom will remain memorable in the annals of progress. The great possibilities of weather modification almost immediately occurred to people working in arid lands. Companies offering rain for sale mushroomed. It seems inevitable to us now that a charlatan or two would be involved with anything that appealed to the popular fancy so well and offered opportunities for financial gain. The publicity of these few mixed with the reliable information from the preponderance of the industry resulted in public concepts based on confusion and even misinformation. Such a state of public knowledge has resulted in proposed state laws which prohibited cloud seeding because it caused droughts on the one hand and repetition because it caused floods on the other hand. It is the purpose of the symposium on “Weather Modification in Arid Lands” to acquaint scientists in other fields and through them the general public with a true picture of the facts and state of development of the science of weather modification as applied to arid lands. Joel E. Fletcher, Vincent J. Schaefer, Roscoe R. Braham, Jr., Eugene L. Peck, Lyle D. Calvin, Charles F. Cooper, Emery N. Castle, J. B. Stevens, Robert B. Ellert, Archie M. Kahan, and Werner A. Baum. and Yook C. Ng. Secrecy, Privacy, and Public Information (28-29 Dec.) Arranged by Margaret Mead (American Museum of Natural History). The first two sessions will focus on some of the complex relationships exemplified by the following questions: Is secrecy in any guise compatible with the education of students and with the practice and function of science in our society? What legal and ethical problems arise, and what actions should be considered to safeguard the individual’s rights of privacy in a democracy, particularly when human beings are the subjects of research? The third session will deal with the scientist’s responsibility to bring scientific information relevant to social fields to the attention of the public. Case histories of severe air and water pollution in two Americancities will be presented as illustrations of the current environmental crisis, and of interaction between scientists’ information groups and the local community. Detlev W. Bronk, Philip E. Mosley, Robert L. Sprouil, Margaret Mead, Oscar Ruebhausen, Peter Rossi, Rene Dubos, Barry Commoner, David Wilson, George Berg, and C. C. Gordon. Weather Modification in Arid Lands (30 Dec.) Arranged by Joel E. Fletcher (Utah State University, Logan). Man has dreamed of controlling his environment for hundreds of years, Great strides have been made through the creation of air conditioning, heating, and housing but it remained for Vincent J. Shaefer and his associates to Prove that man could influence the weather. That July day & DECEMBER 1967 i AAAS GENERAL SYMPOSIA Michael Faraday—-Natural Philosopher (26, 29 Dec.) Arranged by Raymond J. Seeger (National Science Foundation). August 25, 1967, marked the 100th anniversary of the death of Michael Faraday. Despite his lack of formal education, this amazing man made many significant contributions to the intellectual history of mankind in the 19th century. The present symposium regards him from the vantage points of different professions today: a historian of science, a physical chemist, a theoretical physicist, an engineer, and a teacher of physics. In addition, the symposium will have a lecture demonstration, utilizing some of the original Faraday equipment, by Ronald King of the Royal Institution of London, where Faraday devoted his life to understanding physical phenomena. Faraday materials are being arranged for a public exhibition in the Abbey Rocke- feller Hall of Rockefeller University. William W. Havens, Jr., L. Pearce Williams, Ralph E. Gibson, Richard M. Bozorth, Nathaniel Frank, Ernest Weber, Raymond J. Seeger, and Ronald King. Is Defense against Ballistic Missiles Possible? (26-27 Dec.) Arranged by Leonard S. Rodberg (University of Maryland). The nature and potential effectiveness of currently proposed antiballistic missile systems will be discussed. The desirability of a defense against ballistic missiles will be discussed. Its impact on strategic stability and the nuclear arms race, upon U.S. foreign relations, and upon future world security will be analyzed. Richard L. Garwin, Hans A. 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