"
[footnote] *Onesicritus, in Strabo, xv., p. 690, 695, Casaub. Welcker,
'Griechische Tragodien', abth. iii., s. 1078, conjectures that the verses of
Theodectes, cited by Strabo, are taken from a list tragedy, which probably
bore the title of "Memnon."
The campaigns of Alexander, which gave rise to so many new ideas regarding
physical geography, likewise first excited a discussion on the problematical
influence of climate on races. "Families of animals and plants," writes one
of the greatest anatomists of the day, Johannes Muller, in his noble and
comprehensive work, 'Physiologie des Menschen', "undergo, within certain
limitations peculiar to the different races and species, various
modifications in their distribution over the surface of the earth,
propagating these variations as organic types of species.*
[footnote] *[In illustration of this, the conclusions of Professor Edward
Forbes respecting the origin and diffusion of the British flora may be
cited. See the 'Survey Memoir' already quoted, 'On the Connection between
the Distribution of the existing Fauna and Flora of the British Islands,
etc.', p. 64. "1. The flora and fauna, terrestrial and marine, of the
British islands and seas, have originated, so far as that area is concerned,
since the melocene epoch.
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