WCP4119

[1]

Parkstone, Dorset.

Oct.[obe]^r 6th. 1893

Prof. James Geikie¹

D

Dear Sir

I am writing an article on the Erosion Theory of Alpine Lakes for the Fortnightly Review² & have, I think, discovered a means of proving that the lakes in question are due to erosion rather than ^to earth-movements. To illustrate this I have a page of map diagrams & I wait to copy a small [2] portion of the map given at present[?] of your Great ice Age ^2nd. Ed.³ showing the River Tweed & one contour line. I presume you will have no objection to my doing this, as I have no other map at hand which will answer my purpose

If you would not mind the trouble I would send you a proof of my article when it is set up, in order that [3] you might point out any slips I may have made either in my facts or in my argument. I have long taken an immense interest in this problem, and if I am not greatly mistaken I have finally solved it.

Believe me | Yours very truly | Alfred R. Wallace. [signature]