Thanks HWB for answering questions.
The MS on Lepidoptera is almost finished and he is glad HWB will read it; he is fearful of mistakes, not being familiar with the subject.
Down. | Bromley. | Kent. S.E.
My dear Bates.
Hearty thanks.— you are the man to answer a question fully & clearly.— I return the drawing which & to whole case is capital for me.—
I have nearly finished my M.S. on Lepidoptera & will then have it copied by a man who writes an excellent hand.—
Your most kind offer of reading it has made all the
difference to me: if I had not known this I sh
Yours very sincerely | C. Darwin
Two-thirds of the M.S. relates to facts communicated by you to me, or published by you.—
- f1 6135.f1The year is established by the relationship between this letter and the letter from H. W. Bates, 20 April 1868.
- f2 6135.f2CD refers to a drawing of a conspicuous caterpillar. See letter from H. W. Bates, 20 April 1868 and n. 1.
- f3 6135.f3Bates probably offered to read CD's manuscript on Lepidoptera when they met in London (see letter to H. W. Bates 18 March  and n. 4). No manuscript on Lepidoptera has been found in the Darwin Archive--CUL, but in a letter of 17 January 1870 (Calendar no. 7082), Bates told CD he was returning a corrected manuscript of the entomological section of Descent.