Down, | Beckenham, Kent.
Dec 22 1872
Dear Sir
I have now finished yr book & have read it with great interest.1
Many of yr cases are very striking. As I felt sure wd be the case, I have learnt much from it; & I should have modified several passages in my book on expression, if I had had the advantage of reading yr work before my publication. I always felt, & said so a year ago to Professor Donders, that I had not sufficient knowledge of physiology to treat my subject in a proper way.2
With my thanks for the interest which I have felt in reading your work I remain | dear Sir | Yours faithfully | Charles Darwin
Please cite as “DCP-LETT-8691,” in Ɛpsilon: The Charles Darwin Collection accessed on