Down,
May 2, 1879.
My dear Cousin
I leave home on the 6th for 3 week’s rest and will then begin my preliminary notice and continue it after my return home.1
My object in writing is to say that I hope you will not consider me very unreasonable in keeping your various books for so long a time. I had intended to return them before leaving home, but one of my sons who understands mechanics has not yet had time to investigate how far some of the mechanical suggestions in the M.S. folio have since been improved or utilized.2 I have locked up all your books in an iron fire-proof Plate chest, so that they will be safe.
So pray forgive me and believe me | Yours very sincerely | Ch. Darwin
Please cite as “DCP-LETT-12025,” in Ɛpsilon: The Charles Darwin Collection accessed on