My dear Sir
I am much obliged for the Observer. I think your article is very well done & very interesting.2 I will send you a copy, as soon as I get one, of a paper which I have lately written, which it is possible, tho’ not probable, you might like to work up into a popular article3
My health still keeps very weak, but I am able to do a little work on “Variation under Domestication”. The whole has been written once over & I am now going thro’ it again.4 I hope in 6 or 8 weeks to come to “Fowls” when I shall want my M.S. from you with any marginal corrections but I do not intend to add much on account of my weakness.5
When I come to this Chapter I shall have some of your skulls drawn & they shall then be returned to you. I assure you that I am sincerely sorry to have kept them so long.6 I am glad to hear that you will publish on your crossing experiments, but I am not surprized to hear that there has been no sterility.7
Believe me my dear Sir | yours sincerely | Charles Darwin
Please cite as “DCP-LETT-4720,” in Ɛpsilon: The Charles Darwin Collection accessed on