Shall you think me very impudent if I tell you that I have sometimes thought that (quite independently of the present case), you are a little too hard on bad observers; that a remark made by a bad observer CANNOT be right; an observer who deserves to be damned you would utterly damn. Ifeel entire deference to any remark you make out of your own head; but when in opposition to some poor devil, I somehow involuntarily feel not quite so much, but yet much deference for your opinion. I do not know in the least whether there is any truth in this my criticism against you, but I have often thought I would tell you it.
I am really very much obliged for your letter, for, though I intended to put only one sentence and that vaguely, I should probably have put that much too strongly.
Ever, my dear Hooker, yours most truly, C. DARWIN.
P.S. This note, as you see, has not anything requiring an answer.
The distribution of fresh-water molluscs has been a horrid incubus to me, but I think I know my way now; when first hatched they are very active, and I have had thirty or forty crawl on a dead duck's foot; and they cannot be jerked off, and will live fifteen and even twenty-four hours out of water.
[The following letter refers to the expedition of the Austrian frigate "Novara"; Lyell had asked my father for suggestions.]
CHARLES DARWIN TO C. LYELL.
Down, February 11th [1857].
My dear Lyell, I was glad to see in the newspapers about the Austrian Expedition. I have nothing to add geologically to my notes in the Manual. (The article "Geology" in the Admiralty Manual of Scientific Enquiry.) I do not know whether the Expedition is tied down to call at only fixed spots. But if there be any choice or power in the scientific men to influence the places --this would be most desirable. It is my most deliberate conviction that nothing would aid more, Natural History, than careful collecting and investigating ALL THE PRODUCTIONS of the most isolated islands, especially of the southern hemisphere. Except Tristan d'Acunha and Kerguelen Land, they are very imperfectly known; and even at Kerguelen Land, how much there is to make out about the lignite beds, and whether there are signs of old Glacial action. Every sea shell and insect and plant is of value from such spots. Some one in the Expedition especially ought to have Hooker's New Zealand Essay. What grand work to explore Rodriguez, with its fossil birds, and little known productions of every kind. Again the Seychelles, which, with the Cocos so near, must be a remnant of some older land. The outer island of Juan Fernandez is little known. The investigation of these little spots by a band of naturalists would be grand; St. Paul's and Amsterdam would be glorious, botanically, and geologically. Can you not recommend them to get my 'Journal' and 'Volcanic Islands' on account of the Galapagos. If they come from the north it will be a shame and a sin if they do not call at Cocos Islet, one of the Galapagos. I always regretted that I was not able to examine the great craters on Albemarle Island, one of the Galapagos. In New Zealand urge on them to look out for erratic boulders and marks of old glaciers.
Urge the use of the dredge in the Tropics; how little or nothing we know of the limit of life downward in the hot seas?
My present work leads me to perceive how much the domestic animals have been neglected in out of the way countries.
The Revillagigedo Island off Mexico, I believe, has never been trodden by foot of naturalist.
If the expedition sticks to such places as Rio, Cape of Good Hope, Ceylon and Australia, etc., it will not do much.
Ever yours most truly, C. DARWIN.
[The following passage occurs in a letter to Mr. Fox, February 22, 1857, and has reference to the book on Evolution on which he was still at work.
The remainder of the letter is made up in details of no interest:
"I am got most deeply interested in my subject; though I wish I could set less value on the bauble fame, either present or posthumous, than I do, but not I think, to any extreme degree: yet, if I know myself, I would work just as hard, though with less gusto, if I knew that my book would be published for ever anonymously."]
CHARLES DARWIN TO A.R. WALLACE.
Moor Park, May 1st, 1857.