COPYRIGHT, 1961, BY LINCOLN LaPAZ & JEAN LaPAZ
PRINTED IN THE U.S.A.
[Illustration: COURTESY OF AMERICAN MUSEUM OF NATURAL HISTORY
Fireball speeding across field of camera during the photographing
of the Great Spiral Nebula in Andromeda, by Josef Klepesta, at the
Prague Observatory, Czechoslovakia, September 12, 1923.]