Asks about Charles Bell's statement concerning contraction of eye muscles. Asks whether such contraction is related to secretion of tears.
Down, Beckenham | Kent
- f1 6878.f1The correspondent is identified as Donders on the basis that the letter is part of the collection of CD's letters to Donders at the American Philosophical Society; and on the assumption that CD sent the note to Donders prior to their meeting on 7 September (see letter from William Bowman, 3 September  and n. 2).
- f2 6878.f2CD refers to Charles Bell's account of the physiology of weeping (see Bell 1844, pp. 105--6).
- f3 6878.f3For some of CD's investigations into the effects of contraction of the eye muscles, see Correspondence vol. 16, letters to W. E. Darwin, [15 March 1868] and 8 April .
- f4 6878.f4The memorandum is a copy in an unknown hand. A note at the top of the letter states that the original was in Emma Darwin's hand, and that the signature, address, and date were in CD's hand.