The Descent of Man

tively in North America and Europe, should be
ranked as species or geographical races; and
the like holds true of the productions of many
islands situated at some little distance from the
nearest continent.
Those naturalists, on the other hand, who admit
the principle of evolution, and this is now
admitted by the majority of rising men, will feel
no doubt that all the races of man are descended
from a single primitive stock; whether or
not they may think fit to designate the races as
distinct species, for the sake of expressing their
amount of difference. (21. See Prof. Huxley to
this effect in the 'Fortnightly Review,' 1865, p.
275.) With our domestic animals the question
whether the various races have arisen from one
or more species is somewhat different. Although
it may be admitted that all the races, as
well as all the natural species within the same
genus, have sprung from the same primitive
stock, yet it is a fit subject for discussion, whet-