Publication contains mc;nographs and reprints on specialized aspects of inter-
stellar communication with criticai commentary.
----- Stellar life zones. In Cameron, A. G. W., ed. Interstellar communication.
New York, W. A. Benjamin, Inc. 1963. p. 107-110.
Conclusion is reached that all single stars in space (except those with very low
heavy-element contents) have a life zone containing an average of about 1.4
planets of undetermined size.
Cocconi, Guiseppe and Philip Morrison. Searching for interstellar communications.
Nature, v. 184, Sept. 19, 1959: 844-846.
Speculates on optimum channel thnt might be used by an intelligent extrater-
restrial civilization to contact earth. Concludes that the most promising radio
emission line to search for would be at 1420 Mc/s fa. 2lcm) of neutral hydrogen.
Creighton, Gordon W. What the Soviets are sayin[:,. Flying saucer review, v. 10,
Sept. -Oct. 1964: 26.
Summary of articles in Soviet press 1960-1964 about probable existence of ex-
traterrestrial civilizations and possible means of communicating with them.
Crenshaw, James. What can we expect of ''dvilization" in outer space? Fate,
v. 20, Jan. 1967: 79-89.
Thought-provoking views on what may happen when and if earth's scientists put
us in contact with an outer-space civilization superior, inferior, or equivalent
to ours.
aJa Silva, Renato I. No espaco nao estamos sos. Sio Paulo, Edart, 1966. 213 p.
The1lries relating to possibility of life on the moon and other planets are sum-
marized. Parapsychological phenomena of mental telepathy, precognition,
ESP, premonition, and astral projection are discussed as they might relate to
contact with extraterrestrial t!ntities or intelligences.
Drake, Frank D. Intelligent life in space. New York, Macmillan, 1962. 128 p.
Summary of facts that seem to indicate existence of many civilizations in space
and discussion of ways in which men on earth might contact such civilizations.
----- Project Ozma. In Cameron, A. G. W. Interstellar communication. New
Yo::k, W. A. Benjamin, Inc., 1963. p. 176-177.
First systematic, high sensitivity search for manifestations of extraterrestrial
intelligent life are described. Tau Ceti and Epsilon Eridani were chosen as
subjects because they are the nearest single sunlike stars observable from tele-
scope site. Preliminar)' observations uncovered n'J signals of extraterres-
t:ial origin, but radar freq11encies otill appear to offE;r the greatest hope !or
success in the search.
272