My dear Hooker

I enclose letters to you & me from Wallace.¹ I admire extremely the spirit in which they are written. I never felt very sure what he would say. He must be an amiable man. Please return that to me, & Lyell ought to be told how well satisfied he is.— These letters have vividly brought before me how much I owe to your & Lyell’s most kind & generous conduct in all this affair.² My God how glad I shall be when the abstract is finished & I can rest.—

As you have maps & knowledge I think it will cost you very little trouble to tell me roughly how many miles it is in Himalaya, as crow flies, from the most Eastern ancient low-descending glacier (I presume observed by you) to those observed to the N.W. by Thompson(?)³ or others. I see Jamieson speaks of enormous Boulders in the Kangra valley, somewhere about the Punjab,⁴ but whether other former Glacial action has been observed still further westerly I know not.— I only want one sentence just to make case as strong as possible of former Glacial action in Himalaya.—⁵

Yours most truly | C. Darwin