Charles Darwin an Ernst Haeckel, Down, 1. Februar 1866
Down Bromley Kent | Feb 1. 1866
My dear Sir
I write merely to say that I received safely this morning the photographs.
I thank you cordially for all the trouble you have taken. I value them much & all the more as I did not know that some of these distinguished men had || ever taken any part in the discussion on the modification of species.
Believe me my dear Sir
yours truly obliged