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This is Government Attic's posting of a 1969 Library of Congress annotated bibliography, UFOs and Related Subjects, compiled by Lynn E. Catoe for the Air Force Office of Scientific Research. The Defense Technical Information Center released it under FOIA in November 2014. The bibliography lists more than 1,600 items and was requested to support the University of Colorado UFO study led by Edward U. Condon. Its preface concludes that no simple, single explanation of the UFO phenomenon applies to all cases.
“Gray”27 pages
Study radar ''ghosts." 1cience news letter, v, 62, Aug. 16, 1952: 99. Article states that ;i. DOD ienel is trying to discover the phenomena that can be picked up by radr..r. tt is hoped that findings will help dispel impression that unexpected ''blips" appearing on radar screens are "flying saucers." Sykes, Egerton. Flying saucers and negative matter. Atlantis, v. 5, Sept. 1962: 49-51. It l:w.s been established, asserts the author, that if heavy matter can be volatized instantaneously, it may under certain circumstances recombine on the negative side of lite si.:ale. This second.μoy :;tage will be shortlived, but will have characteristics similar to those of fireballs. Temperature inversions cause "flying saucers." Science news letter, v. 62, Dec. 20: 1952: 388. Reports the CM had confirmed that the "flying saucers" seen on radar scope at National Airport near Washington, D.C., during July 1952 were result of temperature inversions bending the radar waves, Those flying saucers; an l\stronomer's explanation. Time, v. 59, June 9, 1952: 54-56. Dr. Donald H. Men:.:el, Harvard professor of astrophysics, analyzes frequently-reported characteristics of flying saucers and uses scientific deduction to show that sightings were caused by terrestrial rather than P.xtraterrestrial phenomena. Tufty, Barbara. 8 planet-probe robots. Science newsletter, v. 84, Oct. 12, 1963: 22'1. Ufology. Newsweek, v. 62, Aug, 5, 1963: 44, Review of Donald H. Menzel and Lyle G. Boyd's oook The World of Flying Saucers (New York, Double.day, 1963). Unger, George. Flying saucers: physical and spiritual aspects. Foreword by Dr, H. Poppelbaum. East Grinstead, Sussex, Eng. , New Knowledge Books, 1958. 43 p. An anthroposophist convinced of spiritual relationship between the cosmos and earth, author postulates that while UFOs are real phenomena, they are not spacecraft from other planets; the spreading of sensational news about their appearances may be considered a large-scale diverting mar.oeuvre by adverse spiritual forces to distract mankind from task of spiritual development. 128
Document, cited by the archive. The PDF is mirrored here; the original link is under it. 419 pages are in the text index: search them above, or from the library's search.