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' File No: (24=8)-28 Subj: Summary of Observations of Aerial Phenomena in the New Mexico Area, December 1946 = May 1950 25 May 1950 Director of the Institute of Meteoritics and Head of the Department of Mathematics and Astronomy at the University of New Moxico, He was Re- search Mathematician at the New Mexico Proving Grounds under an OSRD appointment in 1943 and 1944, and Technical Director of the Operations Analysis Section, Headquarters, Second Air Force, 1944-45, Since 1948, Dr, LaPaz has served on a voluntary basis as consultant for this Dis- trict in connection with the green fireball invostigationse 4~ On 17 February 1949 and again on 14 October 1949, conferences were held at Los Alamos, lew Mexico, for the purpose of discussing the green fireball phenomena, Ropresentatives of the following organizations were present’ at these mectings: Fourth Army, Armed Forces Special Wea- pons Project, University of New Mexico, Fedoral Bureau of Investigation, U, S, Atomic Energy Commission, University of California, U, 5. Air Force Scientific Advisory Board, Geophysical Research Division Air Materiel Commend USAF, and the Office of Special Investigations (IG) USAF. A logical explanation was not proffered with respect to the origin of tho green fireballs, % was, however, generally concluded that the pheno mena existed and that they should be studied scientifically until these occurrences have been satisfactorily explained. Further, that the continued occurrence of unexplained phenomena of this nature in the vicinity of sensitive installations is cause for concern. 5. ‘The Geophysical Research Division, Air Materiol Command, Cambridge, Massachusetts, has recently let a contract to Land-Air, Inc., Holloman AFB, Alamogordo, New Mexico, for a limited scientific study of green fireballs, The results of this sciontific approach to the problem will undoubtedly be of great value in determining tho origin of these phenomena. 6. This summary of observations of aerial phenomena has been prepared for the purpose of re-emphasizing and reiterating the fact that phenomena have continuously occurred in the New Mexico skies during the past 18 months and are continuing to occur, and, secondly, that these phenomena are occurring in the vicinity of sensitive mili- tary and government installations, =< le ra 4 Inels Loki fe 1. Summary of Sightings Lt = cage USAF 2 Photo of Sighting No, 175 District Commander w/comments 3, Ltr fr Dr, LaPaz to Lt Col Rees, dtd 23 May 50 4, Graph indicating maximums