To Adolf von Morlot 9 August 
Down near Bromley | Kent
I should have replied to your last obliging letter, had I not lately been much engaged, before this time. I regret exceedingly to say, that I cannot undertake to see your Journal published: my health during the last three years has been exceedingly weak, so that I am able to work only two or three hours in the 24: these are more than fully occupied & I have materials for several years’ work, which is almost more than I dare undertake. Under these circumstances, I hope you will not think me either unkind or unreasonable in declining to add to my employments, & you must be well aware that everything going through the press costs time & trouble. The only channel of publication in England, that I can see, without great expence to yourself, might possibly be the Edinburgh New Philosophical Journal; but I cannot here aid you, as I am not acquainted with the Editor.—1
We in England are accustomed to believe, that publication is much less expensive with you, than with us: certainly Engraving is. The cheapness of German Books always astonishes me, & I wish scientific authors in England knew, how to follow so good an example. I may just mention to you, that “M. Baillière Bookseller Regent St” is one of the most spirited of scientific publishers, & it might, perhaps, be worth while to send your M.S. to him. Every publisher, however, in England looks at scientific books with a cold eye.— I hope sincerely that you will meet with success in whatever you determine on, though I cannot aid you.
You will think me a great sceptic, when I tell you that your letter has not convinced me. I daresay there may have been Glaciers on the mountains you describe, but my mind will require a long series of proofs to believe that they have come from Scandinavia.— One always puts too much stress on what one self has seen; but I cannot avoid suspecting that N. Wales offers an example of what has happened in many cases; viz, that the Boulders have been transported & rocks scored by floating ice, & that after & during elevation, glaciers have removed all these appearances, except on the outskirts, & have left in place their own marks.—2 I do not believe the respective shares of work of these two agencies, will be clear, until the action of floating ice has been fuller studied in the north & some distinctive effect, if any exist, pointed out. The piled boulders, one on another, appears to me likely to be a distinctive character.—
Have you ever examined the bottoms of the pot-holes? I think it wd be worth doing, for I found the shape of those, formed by eddies during floods in the Welch brooks, curious: they were formed like the bottom of the inside of a green glass bottle—a form evidently due to the centrifugal action of the revolving sand & pebbles. [DIAGRAM HERE]
Are you aware that Hopkins has lately published a paper in Cambridge Phil. Trans.3 in which he disputes Forbe’s semi-fluid theory,4 & maintains that the movement cannot be compared with that of a viscid fluid:— he attributes all to gravity, with the aid of the lower surface melting.—
With my best wishes for your success & that your zeal may be rewarded by many discoveries; believe me, Yours sincerely | C. Darwin
Declines to undertake to have AM’s journal published but recommends possible publishers in England.
Expresses scepticism about AM’s glacier theory. Emphasises role of floating ice instead. Mentions article by William Hopkins on movement of glaciers.
Please cite as
Darwin Correspondence Project, “Letter no. 769,” accessed on 30 March 2017, http://www.darwinproject.ac.uk/DCP-LETT-769