To J. D. Hooker   12 August [1866]

My dear Hooker

I write one line to say how heartily glad we shall be to see you on Saturday or any other day.¹ Let us know train & we shall probably be able to send tax-cart or pony carriage—

I will not talk over some of the points in your last letter until we meet;² but I now plainly see that one chief cause of our difference is that you look much higher than I do and expect to solve the problem far more completely than I have ever thought to be possible. Your letters have interested me quite awfully as the boys say.

yours aff^ly. | Ch. Darwin