_How Old Is the Earth?_, Patrick M. Hurley, Doubleday & Company, Inc.,
Garden City, New York, 1959, 160 pp., $1.25.
_Radiocarbon Dating_ (second edition), Willard F. Libby, University of
Chicago Press, Chicago, Illinois, 1955, 175 pp., $5.00 (hardback);
$1.95 (paperback).
_The Birth and Death of the Sun_, George Gamow, The Viking Press, New
York, 1949, 238 pp., $4.75 (out of print but available through
libraries), $0.60 (paperback) from the New American Library of World
Literature, Inc., New York.
_Inside the Nucleus_, Irving Adler, The John Day Company, Inc., New
York, 1963, 191 pp., $4.95 (hardback); $0.60 (paperback) from the New
American Library of World Literature, Inc., New York.
_Ages of Rocks, Planets, and Stars_, Henry Faul, McGraw-Hill Book
Company, New York, 1966, 109 pp., $2.45.
_Principles of Geochemistry_ (second edition), Brian Mason, John Wiley &
Sons, Inc., New York, 1958, 310 pp., $7.50. (New edition due in 1967.)
_Potassium Argon Dating_, J. H. Zahringer and O. A. Schaeffer,
Springer-Verlag New York, Inc., New York, 1966, 250 pp., $12.50.