race. I shall infer, therefore, that the brown or red was the original
colour of man, and that it maintains itself throughout all climates in
America because accidental deviations from it have not been accompanied
by any useful constitutional peculiarities. It is Bates's opinion that
the Indians are recent immigrants into the tropical plains of South
America, and are not yet fully acclimatised.--Yours faithfully,

A.R. WALLACE.

* * * * *

SIR C. LYELL TO A.R. WALLACE


_73 Harley Street. March 13, 1869._

Dear Wallace,-- ...I am reading your new book,[10] of which you kindly
sent me a copy, with very great pleasure. Nothing equal to it has come
out since Darwin's "Voyage of the _Beagle_." ... The history of the Mias
is very well done. I am not yet through the first volume, but my wife is
deep in the second and much taken with it. It is so rare to be able to
depend on the scientific knowledge and accuracy of those who have so
much of the wonderful to relate....--Believe me ever most truly yours,

CHA. LYELL.

* * * * *

CANON KINGSLEY TO A.R. WALLACE