To A. B. Buckley 18 December 1
6 Queen Anne St.
My dear Miss Buckley
I am very much obliged to you for your note and the proof-sheets herewith returned.2 I fear I may have been rash, but what I can do to make things better I do not know till I consider my proof-sheets.3 I have no brains in London.—
I have not read all the sheets only the parts (and a little more) which you have marked. I remember Mr. Croll in a letter to me attributed the greatest influence to the sea-currents in causing the colder and warmer opposite hemispheres.—4 I see that I ought (whether or not I have, I cannot remember) not to have even alluded to glacial periods without alluding to the distribution of Land and Water.— It is not so much the simple non-destruction of Tropical productions, but the good evidence, as it seems to me, of a former temperate climate having prevailed recently over all equatorial lands and the apparent impossibility of the tropical forms having survived unless they had some refuge. It is this which has made me so strongly inclined to believe in opposite climates in the two hemispheres.5
Pray forgive this dreadfully obscure note; but I have no brains and my hand is unsteady. | With very many thanks | Your’s sincerely | Ch. Darwin
Thanks her for marked proof-sheets.
Discusses climate in earlier geological periods.