To E. F. W. Pflüger   [after 14 April 1875]1

I am very much obliged to you for having sent me your last ms in which you attack the greatest of all problems, the theory of life.—2 I feel it a great honour, that you shd have sent me the treatise

& with very best thanks & high respect, I remain

The date is established by the relationship between this letter and the letter from E. F. W. Pflüger, 14 April 1875.
Pflüger 1875.

Please cite as “DCP-LETT-9931,” in Ɛpsilon: The Charles Darwin Collection accessed on 5 June 2025, https://epsilon.ac.uk/view/dcp-data/letters/DCP-LETT-9931