Ɛpsilon

To William Main   29 November [1872]1

Down, | Beckenham, Kent.

Nov. 29th

Dear Sir

I am much obliged for your very courteous letter. If you ever have time & inclination to read my book,2 I think that you will see that all the cases, referred to, will not be easily explained through your principle of the lines. And even if they could be so explained, there would remain the solution why perpendicular & inclined lines should express what you believe they do.—

Dear Sir | Yours faithfully & obliged | Ch. Darwin

1
The year is established by the relationship between this letter and the letter from William Main, 26 November 1872.
2
Expression.

Please cite as “DCP-LETT-8654,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-8654