My dear Sir
I well remember your very interesting observations, and I have since collected many analogous facts, but when I shall have time and strength to publish I do not at all know. I thank you for your obliging offer, but I cannot at present think of any particular facts in relation to Nicaragua.2 I include, however, some queries on a subject, which greatly interests me; and if you could interest yourself I should be especially obliged for any answer in regard to Negroes or American Indians.3 You would have to read the queries several times over, and you will find it curiously difficult to observe; for any emotion excites some sympathy in observer’s mind and this at the moment makes the point to be forgotten. I should be grateful for a letter with even a single question answered. I have had many answers but hardly any about negroes—the less civilised the better.4 I sincerely hope that you will enjoy fairly good health, and be successful in your Expedition,5 and I remain
My dear Sir | yours very faithfully | Charles Darwin.
Please cite as “DCP-LETT-6546,” in Ɛpsilon: The Charles Darwin Collection accessed on