BIBLIOGRAPHY
C. Darwin, The Variation of Plants and Animals under
Domestication (London, 1868). Hippocrates, “On Genera-
tion,” in Oeuvres complètes d'Hippocrate, ed. É. Littré
(Amsterdam, 1962), Vol. VII; excerpt trans. by P. Vorzimmer.
The remaining primary sources for over 2000 years of
pangenetical thought are too numerous to cite here: full
citations can be found below in the two best secondary
sources on theories of inheritance. Both E. S. Russell, The
Interpretation of Development and Heredity (Oxford, 1930),
and F. J. Cole, Early Theories of Sexual Generation (Oxford,
1930) are excellent and as useful today as they have always
been. For both a valuable history of the idea of the inherit-
ance of acquired characters and for the subsequent Marxian
interpretations down to recent times, see Conway Zirkle's
eminently readable Evolution, Marxian Biology, and the
Social Scene (Philadelphia, 1959).
PETER VORZIMMER
[See also Biological Conceptions in Antiquity;
Evolutionism;
Genetic Continuity; Inheritance of Acquired Charac-
teristics; Recapitulation.]