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WORK OF THE PERIOD 1842 TO 1854. The work of these years may be roughly divided into a period of geology from 1842 to 1846, and one of zoology from 1846 onwards.

I extract from his diary notices of the time spent on his geological books and on his Journal.'

*Volcanic Islands.' Summer of 1842 to January, 1844.
‘Geology of South America.' July, 1844, to April, 1845.

Second Edition of “The Journal,' October, 1845, to October, 1846.

The time between October, 1846, and October, 1854, was practically given up to working at the Cirripedia (Barnacles) ; the results were published in two volumes by the Ray Society in 1851 and 1854. His volumes on the Fossil Cirripedes were published by the Palæontographical Society in 1851 and 1854.

Some account of these volumes will be given later.

The minor works may be placed together, independently of subject matter.

“Observations on the Structure, &c., of the genus Sagitta," Ann. Nat. Hist. xiii., 1844, pp. 1-6.

“ Brief Descriptions of several Terrestrial Planariæ, &c.," Ann. Nat. Hist. xiv., 1844, pp. 241-251,

"An Account of the Fine Dust * which often Falls on Vessels in the Atlantic Ocean,” Geol. Soc. Journ. ii., 1846, pp. 26–30.

"On the Geology of the Falkland Islands," Geol. Soc. Journ. ii., 1846, pp. 267274.

“On the Transportal of Erratic Boulders, &c.," Geol. Soc. Journ. iv., 1848, pp. 315-323.4

* A sentence occurs in this paper of interest, as showing that the author was alive to the importance of all means of distribution :-"The fact that particles of this size having been brought at least 330 miles from the land is interesting as bearing on the distribution of Cryptogamic plants."

+ An extract from a letter to Lyell, 1847, is of interest in connection with this essay :-"Would you be so good (if you know it) as to put Maclaren's

WORK OF THE PERIOD.

297

The article “Geology," in the Admiralty Manual of Scientific Enquiry (1849), pp. 156-195. This was written in the spring of 1848.

“On British Fossil Lepadidæ," "Geol. Soc. Journ.' vi., 1850, pp. 439-440.

“Analogy of the structure of some Volcanic Rocks with that of Glaciers,” “ Edin. Roy. Soc. Proc.' ii., 1851, pp. 17-18.

Professor Geikie has been so good as to give me (in a letter dated Nov. 1885) his impressions of my father's article in the 'Admiralty Manual.' He mentions the following points as characteristic of the work :

"1. Great breadth of view. No one who had not practically studied and profoundly reflected on the questions discussed could have written it.

“2. The insight so remarkable in all that Mr. Darwin ever did. The way in which he points out lines of enquiry that would elucidate geological problems is eminently typical of him. Some of these lines have never yet been adequately followed; so with regard to them he was in advance of his time.

"3. Interesting and sympathetic treatment. The author at once puts his readers into harmony with him. He gives them enough of information to show how delightful the field is to which he invites them, and how much they might accomplish in it. There is a broad sketch of the subject which everybody can follow, and there is enough of detail to instruct and guide a beginner and start him on the right track.

address on the enclosed letter and post it. It is chiefly to enquire in what paper he has described the Boulders on Arthur's Seat. Mr. D. Milne in the last Edinburgh ‘New Phil. Journal' (1847), has a long paper on it. He says: 'Some glacialists have ventured to explain the transportation of boulders even in the situation of those now referred to, by imagining that they were transported on ice floes, &c. He treats this view, and the scratching of rocks by icebergs, as almost absurd . . . he has finally stirred me up so, that (without you would answer him) I think I will send a paper in opposition to the same Journal. I can thus introduce some old remarks of mine, and some new, and will insist on your capital observations in N. America. It is a bore to stop one's work, but he has made me quite wroth."

“Of course, geology has made great strides since 1849, and the article, if written now, would need to take notice of other branches of enquiry, and to modify statements which are not now quite accurate ; but most of the advice Mr. Darwin gives is as needful and valuable now as when it was given. It is curious to see with what unerring instinct he seems to have fastened on the principles that would stand the test of time.”

In a letter to Lyell (1853) my father wrote, “I went up for a paper by the Arctic Dr. Sutherland, on ice action, read only in abstract, but I should think with much good matter. It was very pleasant to hear that it was written owing to the Admiralty Manual.”

To give some idea of the retired life which now began for my father at Down, I have noted from his diary the short periods during which he was away from home between the autumn of 1842, when he came to Down, and the end of 1854.

1843, July.-Week at Maer and Shrewsbury.

October.-Twelve days at Shrewsbury. 1844, April.—Week at Maer and Shrewsbury.

, July.—Twelve days at Shrewsbury. 1845, September 15.-Six weeks, “Shrewsbury, Lincoln

shire, York, the Dean of Manchester, Waterton,

Chatsworth.”
1846, February.— Eleven days at Shrewsbury.

» July.—Ten days at Shrewsbury.
» September.-Ten days at Southampton, &c., for the

British Association.
1847, February.-Twelve days at Shrewsbury.
, June.-Ten days at Oxford, &c., for the British As-

sociation.
October.–Fortnight at Shrewsbury.

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1848, May. ---Fortnight at Shrewsbury.

July.--Week at Swanage. , October.- Fortnight at Shrewsbury. , November.-Eleven days at Shrewsbury. 1849, March to June.-Sixteen weeks at Malvern. „ September.-Eleven days at Birmingham for the

British Association. 1850, June.-Week at Malvern.

August.-Week at Leith Hill, the house of a relative.

, October.—Week at the house of another relative. 1851, March.-Week at Malvern.

April.—Nine days at Malvern.

July.—Twelve days in London,
1852, March.-Week at Rugby and Shrewsbury.

» September.-Six days at the house of a relative. 1853, July.—Three weeks at Eastbourne. „ August:--Five days at the military Camp at Chob

ham.
1854, March.-Five days at the house of a relative.

July.—Three days at the house of a relative.

October.--Six days at the house of a relative.

It will be seen that he was absent from home sixty weeks in twelve years. But it must be remembered that much of the remaining time spent at Down was lost through illhealth.]

LETTERS.

C. Darwin to R. Fitz - Roy.

Down (March 31st, 1843]. Dear Fitz-Roy,-I read yesterday with surprise and the greatest interest, your appointment as Governor of New Zea. land. I do not know whether to congratulate you on it, but I am sure I may the Colony, on possessing your zeal and energy. I am most anxious to know whether the report is true, for I cannot bear the thoughts of your leaving the country without seeing you once again ; the past is often in

my memory, and I feel that I owe to you much bygone enjoy. ment, and the whole destiny of my life, which (had my health been stronger) would have been one full of satisfaction to me. During the last three months I have never once gone up to London without intending to call in the hopes of seeing Mrs. Fitz-Roy and yourself; but I find, most unfortunately for myself, that the little excitement of breaking out of my most quiet routine so generally knocks me up, that I am able to do scarcely anything when in London, and I have not even been able to attend one evening meeting of the Geological Society. Otherwise, I am very well, as are, thank God, my wife and two children. The extreme retirement of this place suits us all very well, and we enjoy our country life much. But I am writing trifles about myself, when your mind and time must be fully occupied. My object in writing is to beg of you or Mrs. Fitz-Roy to have the kindness to send me one line to say whether it is true, and whether you sail soon. I shall come up next week for one or two days; could you see me for even five minutes, if I called early on Thursday morning, viz. at nine or ten o'clock, or at whatever hour (if you keep early ship hours) you finish your breakfast. Pray remember me very kindly to Mrs. Fitz-Roy, who I trust is able to look at her long voyage with boldness. Believe me, dear Fitz-Roy, Your ever truly obliged,

CHARLES DARWIN.

[A quotation from another letter (1846) to Fitz-Roy may be worth giving, as showing my father's affectionate remem. brance of his old Captain.

“Farewell, dear Fitz-Roy, I often think of your many acts of kindness to me, and not seldomest on the time, no doubt quite forgotten by you, when, before making Madeira, you came and arranged my hammock with your own hands, and which, as I afterwards heard, brought tears into my father's eyes."]

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