If we are not able to interpret the records devised and set down by human beings like ourselves, we will not easily understand signals that might possibly be broadcast by aliens from the planets of other suns. [X-1] Wiener, J. S. _The Piltdown Forgery._ London: Oxford Univ. Press, 1955. [X-2] MacDougall, C. D. _Hoaxes._ New York: Ace Books, 1958. [X-3] Fry, D. W. _The White Sands Incident._ Los Angeles: New Age Publ. Co., 1954. [X-4] Redondo Beach (Calif.) _Daily Breeze_, September 25, 1953. [X-5] Bethurum, T. _Aboard a Flying Saucer._ Los Angeles: De Vorss & Co., 1954. [X-6] Van Tassel, G. W. _I Rode a Flying Saucer._ Los Angeles: New Age Publ. Co., 1952. [X-7] Cahn, J. P. “Flying Saucers and the Mysterious Little Men,” _True_ magazine (September 1952). [X-8] Menger, H. _From Outer Space To You._ Clarksburg, West Virginia: Saucerian Publications, 1959. [X-9] Peterborough (N.H.) _Transcript_, Oct. 30, 1958. [X-10] Leslie, D., and Adamski, G. _Flying Saucers Have Landed._ New York: British Book Centre, 1953. [X-11] Adamski, G. _Inside the Space Ships._ Abelard-Schuman, 1955. [X-12] ---- _Flying Saucers, Farewell._ Abelard-Schuman, 1961. [X-13] _UFO Investigator_ (June 1959). [X-14] Michel, A. _The Truth about Flying Saucers._ New York: Criterion Books, 1956. [X-15] “Have We Visitors from Outer Space?” _Life_ magazine (April 4, 1952). [X-16] Rio de Janeiro: _O Cruzeiro_, May 17, 1952. [X-17] Civilian Saucer Investigations _Quarterly Bulletin_ (September 1952). [X-18] Air Force Files. [X-19] _UFO Critical Bulletin_ (March-April 1958). [X-20] Fontes, O. T. “The Brazilian Navy UFO Sighting at the Island of Trindade,” _Flying Saucers_ (February 1961), p. 27 ff. [X-21] Maney, C. A., and Hall, R. _The Challenge of Unidentified Flying Objects._ Washington, D.C., 1961. [X-22] Rio de Janeiro: _O Cruzeiro_, March 8, 1958. _Chapter_ XI ANGEL HAIR, PANCAKES, ETC. If thousands of aircraft from other planets have indeed been patrolling the earth for many years (according to some authors, for centuries), they have achieved an incredibly perfect safety record. Disabled or wrecked flying saucers have occasionally been reported, but the debris and bodies to be expected from such incidents have never been located.