1/1, July 1952.

$8.00-$21.00 a year for membership in the Aerial Phenomena Research Organization (APRO), including the Bulletin.

10-6 pp. (varies), originally typewritten and mimeographed, and then 6-9 pp., printed from about 1956.

The APRO was started in January 1952 by Coral E. Lorenzen (1925-1988) and her husband, Leslie James Lorenzen (1922-1986) to serve as a repository of UFO information and a forum for the scientific investigation of the information collected. The Bulletin was originally published on typewritten, unnumbered sheets and began regular volume and issue numbering with the acquisition of a mimeograph machine in 1952. The first of these issues said that the journal was published as a reaction to the "Saucer Bandwagon" then beginning to sweep the news media, both to refute the "weather balloon" hypotheses being circulated and to analyze and support thoughtful reactions to the phenomena. The journal was "dedicated to the eventual solution of the mystery of the unidentified flying objects which have been present in the skies above the earth for hundreds of years," and carried a regular "Recent Sightings" column to report on new observations of UFOs and a "Grapevine" that noted personal observations and rumors about them. From about 1956 the APRO began to try to make UFO investigations more "scientific" by recruiting those with a science background to evaluate sightings and to establish a network of trained Field Investigators to gather the facts of sightings. In 1969 perhaps a majority of members of APRO left to form the Midwest UFO Network (now MUFON) over disputes about APRO's highhanded, centralized approach to investigations.