CHARLES DARWIN TO J.S. HENSLOW.
Down, November 11th, 1859.

My dear Henslow,

I have told Murray to send a copy of my book on Species to you, my dear old
master in Natural History; I fear, however, that you will not approve of
your pupil in this case. The book in its present state does not show the
amount of labour which I have bestowed on the subject.

If you have time to read it carefully, and would take the trouble to point
out what parts seem weakest to you and what best, it would be a most
material aid to me in writing my bigger book, which I hope to commence in a
few months. You know also how highly I value your judgment. But I am not
so unreasonable as to wish or expect you to write detailed and lengthy
criticisms, but merely a few general remarks, pointing out the weakest
parts.

If you are IN EVEN SO SLIGHT A DEGREE staggered (which I hardly expect) on
the immutability of species, then I am convinced with further reflection
you will become more and more staggered, for this has been the process
through which my mind has gone. My dear Henslow,

Yours affectionately and gratefully,
C. DARWIN.


CHARLES DARWIN TO JOHN LUBBOCK. (The present Sir John Lubbock.)
Ilkley, Yorkshire,