Of the accidental
varieties of man, which would occur among the first few and scattered
inhabitants of the middle regions of Africa, some one would be better
fitted than others to bear the diseases of the country. This race would
consequently multiply, while the others would decrease; not only from their
in ability to sustain the attacks of disease, but from their incapacity of
contending with their more vigorous neighbours. The colour of this
vigorous race I take for granted, from what has been already said, would be
dark. But the same disposition to form varieties still existing, a darker
and a darker race would in the course of time occur: and as the darkest
would be the best fitted for the climate, this would at length become the
most prevalent, if not the only race, in the particular country in which it
had originated." He then extends these same views to the white inhabitants
of colder climates. I am indebted to Mr. Rowley, of the United States, for
having called my attention, through Mr. Brace, to the above passage of Dr.
Wells' work.
The Hon. and Rev. W. Herbert, afterward Dean of Manchester, in the fourth
volume of the "Horticultural Transactions", 1822, and in his work on the
"Amaryllidaceae" (1837, pages 19, 339), declares that "horticultural
experiments have established, beyond the possibility of refutation, that
botanical species are only a higher and more permanent class of varieties.
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