From Horace Darwin to G. H. Darwin 31 October 1875

Dear George

I never thanked you for looking over my spanner. There are heaps of things I want to talk to you about. Firstly & Chiefly that confounded Bonham has invented an improvement in the elliptical motion machine, wh. makes it much simpler & lighter, d—mn him. and it will make nearly all my old work useless: 2^ndly I have been thinking over my 3 legged ProcellierQQQQ cell and I have come to the conclusion that it wont do, because it would have to be so big that the whole machine would have to be at least 12^ft high, probably 14^ft.

But I’m going to do it some how. I shall come up to Cam. some time in about a month; shall you be up all this term? I want very much to see the pitch; & there some other things I want to talk about. I beleive you are at home to day but I shall send this to Cam.

Yours | H Darwin