My views spread slowly in England and America; and I am much surprised to find them most commonly accepted by geologists, next by botanists, and least by zoologists.

I am much pleased that the younger and middle-aged geologists are coming round, for the arguments from Geology have always seemed strongest against me.

Not one of the older geologists (except Lyell) has been even shaken in his views of the eternal immutability of species.

But so many of the younger men are turning round with zeal that I look to the future with some confidence.

I am now at work on "Variation under Domestication," but make slow progress--it is such tedious work comparing skeletons.
With very sincere thanks for the kind sympathy which you have always shown me, and with much respect,...
P.S .-- I have lately read M.Naudin's paper (126/1.