Calvin, Melvin. Round trip from space. Evolution, v. 3, Sept. 8, 1959: 362-377.
Cameron, A. G. W. Stellar life zoues. In Cameron, A. G. W., ed .. Inter-
s~elh:'!' cc.;minunication. New York, w:-A. Benjamin, Inc. 1963. p. 107-110.
Conclusion is reached that all single stars in space (except thosf! with very low
heavy-element contents) have a life zone containing an average of about 1. 4
planets of undetermined size.
Chaikin, G. L. A transitional hypothesis concerning life on otht!r bodies.
Po?1lar astronomy, v. 59, Jan. 1951: 50-51.
It is postulated that the existence of life as we know it in planetary systems is
a transitional phenomenon that tends to flourish most under conditions of least
stress on the "habitable" bodies,
Chamberlin, Ralph V. Life on other worlds. Bulletin of the University of Utah,
v. 22, Feb. 1932: 1-52.
A study in the history of opinion on life in other worlds from 600 B. C. to
1931 A. D.
Conniff, James G. Who's out t:lere: meteor!te e"idence. Columbia, v. 41,
Aug, 1961: 3-5, 35, 37.
Conway, J. If there is life on other planets wouldn't there have to be
polygenesia? Catholic messenger, v. 82, Aug. 6, 1964: 10.
Copland, Alexander. The existence of other worlds, peopled with living and
intelligent beings, deduced from the nature of the universe. London,
J. G. & F. Rivington, 1834. 210 p.
Presents reasons for believing the fixed stars and ihe planets are habitations
for living beings. Cites writings of men who have believed in a plurality of
inhabited worlds and states grounds for their belief. in their O'Vn words.
Cramp, Leonard G. The cosmos--expanding or orbital? Flying saucer review,
v. 7, May-June 1961: 8-12.
Author proposes an original and topical theory on how the universe began.
Creighton, Gorc!on W. What do the Russians know? Flying saucer review,
v. 8, Jan. -Feb. 1962: 20-21.
Translations from Krasnaya Zvezda, Ekonomich Gazeta, and Komsomolskaya
Pravda expressing Soviet views about possible life beyond the earth.
Demoulin, Maurice. La vie dans l'univers. La nature, v. 64, Part I, Apr. 15,
1936: 369-371.
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