Is not sure he thinks so much of BDW's argument in his last paper as of some others he advanced. Is BDW sure Lucanidae use jaws for holding female in copulation rather than for fighting other males?
Down, Bromley, Kent
My dear Sir
I am very much obliged for your note & for the Practical Entomologist. I received your last paper & read it carefully & have just looked at it & find many passages marked, amongst others the concluding paragraph; but I am not sure that I think so much of this argument as of some others which you have advanced. I must say I am very glad to hear that you are going to give up your Journal for it must have been a very heavy burden, especially of late with your wife in such a suffering state. You will also now have more time for science.
With respect to the duplicate of the ``Origin'' I should rather like it to be sent to
My dear Sir | Yours very sincerely | Ch. Darwin
- f1 5603.f1Walsh's letter has not been found. Walsh evidently enclosed copies of Practical Entomologist for May and July 1867 (see n. 7, below). The copies have not been found in the Darwin Pamphlet Collection--CUL.
- f2 5603.f2The reference is to the second half of a paper on gall insects (Walsh 1866). CD probably received the paper early in 1867 (see Correspondence vol. 14, letter to B. D. Walsh, 24 December ). CD's heavily annotated copy is in the Darwin Pamphlet Collection--CUL; most of the final paragraph was scored. In it Walsh wrote: `Surely, therefore, upon general principles, a hypothesis, which accounts clearly and satisfactorily for a great mass of phenomena, is more likely to be a correct one, than a hypothesis which accounts for nothing, and, while it mercifully spares our Reasoning powers, draws most largely and exorbitantly upon our Faith' (Walsh 1866, p. 288).
- f3 5603.f3The Practical Entomologist, which was edited by Walsh, ceased publication with the double issue for August and September 1867 (vol. 2, nos. 11 and 12). Walsh's wife was Rebecca Walsh.
- f4 5603.f4Walsh evidently received two copies of the fourth edition of Origin (see Correspondence vol. 14, letter to B. D. Walsh, 24 December ). Joseph Leidy had written to CD expressing support for the theory of natural selection (see Correspondence vol. 9, letter to Joseph Leidy, 4 March ). It is not known whether Leidy received Walsh's spare copy of the book.
- f5 5603.f5CD was working on the proof-sheets of Variation. CD kept a number of portfolios, amassed over a long period of time and since dispersed. The likely contents of some portfolios were reconstructed when some of CD's papers were catalogued in 1932 (see DAR 220: 113). Only a fragment of the original letter from Walsh of [25 February 1867] has been found, suggesting that CD may have put an excised portion of the letter into a portfolio.
- f6 5603.f6CD had mentioned a new gall, remarkable because it attached `not to the leaf but to twigs' in his letter to B. D. Walsh of 20 August  (Correspondence vol. 14).
- f7 5603.f7The reference is to Walsh's statement that male horn-bugs (family Lucanidae) used their enlarged jaws to grasp females during mating; Walsh made this statement in a two-part paper that appeared in the issues of Practical Entomologist for May and July 1867 (Practical Entomologist 2 (1867): 88, 107). CD's copies have not been found. CD cited these pages of Practical Entomologist in Descent 1: 342, but added that the jaws were probably also used for fighting.