My dear Sir
I just send one line to thank you very much for the trouble you have taken in sending me the account of the Hand-level, which I have recommended in my Instructions.—2 I am delighted to hear what progress your Book3 has made; I had no idea you were going to publish so grand an affair as 30 engravings sounds like. I am glad you are prepared to fight stoutly with the sceptical geologists.4
Yours very sincerely | C. Darwin
Please cite as “DCP-LETT-1160,” in Ɛpsilon: The Charles Darwin Collection accessed on