Down, | Beckenham, Kent.
Feb 1 1873
My dear Sir
I am glad to hear of the new edit. I have at present no corrections to suggest, though I hope in a year or two’s time to bring out an improved edition.1
Thanks for the reference about not breathing.2 I suppose Herr Koch has taken the proper steps about the heliotypes.3
yours very sincerely | Ch Darwin
Please cite as “DCP-LETT-8754,” in Ɛpsilon: The Charles Darwin Collection accessed on