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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