is now in the printer's hands, and I have not strength or time to make any more additions.
P.S .-- By an odd coincidence, since the above was written I have received your very obliging letter of October 23rd.

I did notice the point to which you refer, and will hereafter reflect more over it.

I was indeed on the point of putting in a sentence to somewhat of the same effect in the new edition of the "Origin," in relation to the query--Why have not apes advanced in intellect as much as man?
but I omitted it on account of the asserted prolonged infancy of the orang.

I am also a little doubtful about the distinction between gregariousness and sociability.
...When you come to England I shall have much pleasure in making your acquaintance; but my health is habitually so weak that I have very small power of conversing with my friends as much as I wish.

Let me again thank you for your letter.