A “mummified man,” sometimes referred to as proof of such a catastrophe, may be seen at Caspar, Wyoming. Found in the Rocky Mountains in the autumn of 1932, this little creature measures 6½ inches high in a sitting position and weighs three-quarters of a pound. Paleontologists recognize it as _Hesperopithecus_, an anthropoid denizen of earth during the Pliocene period. The mummified body of another such creature, supposedly found in Arizona, has also been called the remains of “a little green man.”[XI-1] In 1952 four spaceships were supposed to have crashed in the deserts of New Mexico and Arizona, carrying the bodies of thirty-four “little men”[XI-2], but the only evidence offered for this disaster was a chunk of “unknown metal” that proved to be ordinary aluminum, and the entire drama was shown to be the work of a known hoaxer[XI-3]. Although a few flying-saucer organizations regard such “humanoid” evidence with some doubt, others, such as the Aerial Phenomena Research Organization (APRO) are less skeptical of the reality of “little men.”[XI-4] UFO publications have reported the finding of various substances alleged to have been produced by UFOs. The offices of Air Force investigators at Dayton house a small museum of such “pieces of saucers”--old batteries, meteorites, parts of primitive radios, rocks, corroded lead pipe, tangles of wire, strips of tin foil. Although a few of these specimens have been sent in by optimistic hoaxers, most of them have been submitted by genuinely puzzled citizens. When analysis shows the normal origin of such an object, the finder usually accepts the verdict calmly, whether he is disappointed or relieved, but occasionally he rejects the identification and indignantly accuses the Air Force of theft, substitution, or plain lying to suppress the “truth.” Nevertheless, not a single fragment studied so far--animal, vegetable, or mineral--shows any evidence that it grew or was constructed on an alien world. _Angel Hair and Spiders_ Some centuries ago the primitive inhabitants of the Hawaiian Islands, observing the feathery, hairlike threads of volcanic glass left on the ground from ancient eruptions, accounted for the substance by the legend that the goddess Pelee had once stopped somewhere in the neighborhood to comb her hair. “Angel hair,” a term in UFO parlance used to describe any unfamiliar fibers, strands, threads, liquids, granules, and powders found on the earth and supposedly deposited from flying saucers, offers an interesting analogy.