The official link from the FBI vault can be found here
A rewritten copy of the report can be found below, but some words in the original text are illegible due to the numerous notations and stamps.
The document, which was received on July 8, 1947, states:
This memorandum is respectfully addressed to certain scientists of distinction, to important aeronautical and military authorities, to a number of public officials and to a few publications. The writer has little expectation that anything of import will be accomplished by this gesture. The mere fact that the data here-in were obtained by so-called supernormal means is probably sufficient to ensure its disregard by nearly all the persons addressed: nevertheless, it seems a public duty to make it available. (The present writer has several university degrees and was formerly a university department head).
A very serious situation may develop at any time with regard to the “flying saucers”. If one of these should be attacked, the attacking plane will almost certainly be destroyed. In the public mind, this might create near panic and international suspicion. The principal data concerning these craft is now at hand and must be offered, no matter how fantastic and unintelligible it may seem to minds not previously instructed in thinking of this type.
- Part of the disks carry crews, others are under remote control.
- Their mission is peaceful. The visitors contemplate settling on this plane.
- These visitors are human-like but much larger in size.
- They are NOT excarnate Earth people but come from their own world.
- They do NOT come from a planet as we use the word, but from an etheric planet which interpenetrates with our own and is not perceptible to us.
- The bodies of the visitors, and the craft, automatically materialize on entering the vibratory rate of our dense matter.
- The disks possess a type of radiant energy or a ray, which will easily disintegrate any attacking hip. They reenter the etheric at will, and so simply disappear from our vision, without a trace.
- The region from which they come is not the “astral plane”, but corresponds to the Lokas or Talas. Students of esoteric matters will understand these terms.
- They probably cannot be reached by radio, but probably can be by radar. if a signal system can be devised for that apparatus.
We give information and warning and can do no more. Let the newcomers be treated with every kindness. Unless the disks are with-(illegible) a (illegible, illegible) with which our culture and science are incapable of dealing. A heavy responsibility rests upon the few in authority who are able to understand this matter.
Addendum: The Lokas are oval-shaped, fluted length, oval with a heat-resisting metal or alloy not yet known, the front cage contains the controls, the middle portion a laboratory; the rear contains armament, which consists essentially of a powerful energy apparatus, perhaps a ray…
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dedicates his life in search of the Amazing and the Unknown.