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Darwin Correspondence Project

To T. H. Farrer   13 October 1880

Down, | Beckenham, Kent. | Railway Station | Orpington. S.E.R.

Oct 13. 1880

My dear Farrer,

I have been glad to see your copy-book, and all is now clear to me.1 I have been able to correct some doubtful points, so that I need not trouble you with my M.S. I have been examining under the microscope the castings received this morning, and they are quite invaluable to me.2 I shall send the bits of brick to Mr Sorby, who is the great authority on rock-structure, to see if my impression is correct that they have undergone attrition.3 But before sending them I much want answers on a few points. The queries are written on a separate paper, with open spaces, as this will save you trouble.4 These are the last of my questions.

My dear Farrer, | Yours truly obliged. | Charles Darwin

Footnotes

Farrer had sent a copy of the notes he had made when the Roman villa on the Abinger estate was first excavated (see letter from T. H. Farrer, 9 October 1880).
Horace Darwin had collected worm-castings from a road made of brick rubbish (see letter from T. H. Farrer, 10 October 1880).
CD wanted castings from paths made from brick and mortar rubble in order to see whether the small fragments swallowed by worms acted like millstones to crush their food (letter to T. H. Farrer, 10 October [1880] and n. 4). Henry Clifton Sorby had developed techniques to make thin sections of rocks that allowed him to determine the linear dimensions of the small bodies of which the rock was composed (ODNB).
For CD’s questions and Farrer’s answers, see letter from T. H. Farrer, 16 October 1880.

Summary

THF’s copybook has cleared up all points. The castings are invaluable. Encloses further queries [missing].

Letter details

Letter no.
DCP-LETT-12755
From
Charles Robert Darwin
To
Thomas Henry Farrer, 1st baronet and 1st Baron Farrer
Sent from
Down
Source of text
Linnean Society of London (LS Ms 299/37)
Physical description
LS 3pp

Please cite as

Darwin Correspondence Project, “Letter no. 12755,” accessed on 20 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-12755.xml

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