My dear M^r. Darwin

I shall be much pleased if you are able as you kindly propose to pay me a visit when you are next in London.² I am always at home from ten to one in the morning excepting on Mondays and Fridays when my Hospital duties take me away earlier than usual.³ Should I however, hear from you that any hour whatsoever is more convenient to you I will most certainly take care to be then at home, as I should much regret losing the pleasure of seeing you.

I have heard from Professor Wyman, who chances to be just now going to pay a visit to Florida. He has promised to get what information he can as to the question of white and black pigs, and if possible to make some experiments himself on the matter.⁴

Incidentally he mentioned that by an inadvertence in your work, you have spoken of Virginia instead of Florida, as the region in which his observations were made. I do not know whether this is the case; but I thought that if it be so you might like to have your attention called to the unimportant slip, so that it might in after editions be corrected.⁵ With kind regards

Believe me | Yours sincerely | William Ogle.

C. Darwin Esq^r.