RECORD: Darwin, C. R. 1880. [Earthworm research notes]. CUL-DAR63.49. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Prepared and edited by John van Wyhe 7.2025. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR63, CUL-DAR64 and CUL-DAR65 contain a diverse array of materials for Darwin's research on earthworms. All of the textual items in these folders, including this one, have been transcribed in a single file: CUL-DAR63-65.
49
Dec 6 80
It is impossible to doubt that the bits of brick or tiles from the Abinger Roman villa have been greatly rounded.
The bits from over hole in field over all more or less rounded- It is scarcely credible that there shd have been such rounding by accident before the brick rubbish was laid on ground.
(On the other Hand
(Six bits of Verandah tiles from gizzard & intestine of seven worms in 2 Pots with Earth & no leaves — show very little attrition — perhaps some of the smaller ones show more attrition than the fouled particles commonly show.)
(the bits of brick from under Walnut tree at Down — show very little attrition, some show none whatever & others doubtful.)
Stones from gizzard. Frank Oct. 18th — 2 bits of brick sharp & flint — sharp — some bits of [illeg] seen rounded.
(Pot I. Nov. 6. 2 bits of rounded tiles from intestine are not at all rounded — one perhaps rounded)
(Nov. 4. 2 tiles I think not rounded — 4 concretions — smaller ones crystallized & not rounded — larger ones look rounded — gizzards of tape worms.)
(Nov. 6 — 2 tiles & 2 concretions not rounded — gizzard
(Chalk field, bits of chalk & 1 concretion seem rounded.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 7 July, 2025