descent of the great Kingdoms (as Vertebrata, Articulata, etc.) from one
parent, I have said in the conclusion, that mere analogy makes me think it
probable; my arguments and facts are sound in my judgment only for each
separate kingdom.

THE FORMS WHICH ARE BEATEN INHERITING SOME INFERIORITY IN COMMON.

I dare say I have not been guarded enough, but might not the term
inferiority include less perfect adaptation to physical conditions?

My remarks apply not to single species, but to groups or genera; the
species of most genera are adapted at least to rather hotter, and rather
less hot, to rather damper and dryer climates; and when the several species
of a group are beaten and exterminated by the several species of another
group, it will not, I think, generally be from EACH new species being
adapted to the climate, but from all the new species having some common
advantage in obtaining sustenance, or escaping enemies. As groups are
concerned, a fairer illustration than negro and white in Liberia would be
the almost certain future extinction of the genus ourang by the genus man,
not owing to man being better fitted for the climate, but owing to the
inherited intellectual inferiority of the Ourang-genus to Man-genus, by his
intellect, inventing fire-arms and cutting down forests. I believe from
reasons given in my discussion, that acclimatisation is readily effected
under nature. It has taken me so many years to disabuse my mind of the TOO
great importance of climate--its important influence being so conspicuous,
whilst that of a struggle between creature and creature is so hidden--that
I am inclined to swear at the North Pole, and, as Sydney Smith said, even
to speak disrespectfully of the Equator. I beg you often to reflect (I
have found NOTHING so instructive) on the case of thousands of plants in
the middle point of their respective ranges, and which, as we positively