The Evolution of Man [London 1906], Vol. I, 161.
Thomas Huxley (1825-95).
Source: Nature
9 [1874], p. 256.
Ernst Haeckel (1834-1919).
Source : E. Haeckel,
Last Word on Evolution [London 1910], Frontispiece.
Francis Bacon (1561-1626).
Source : Deutsches Museum (German Museum, Munich).
: Foto Deutsches Museum.
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