The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1871. [Earthworm research notes]. CUL-DAR63.72. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

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.

Dec 27 /71/

The Holes came up at all ∠s to surface often very obliquely or very much inclined — That it cd be shows that it comes up at the ∠ to slope ie shortest route to surface that work wd be very effective.

The castings during rain seem brought up extra wet as if worm had absorbed water to aid in excretion —

Some of the very pulpy castings (during rain) seemed to have been blown by strong wind to leeward, & slope of course wd aid this-

Say Wonderful the number of castings incessantly brought to surface —

Dec 29

(It is impossible to strike average about ∠°, one wd think they wd generally, one wd think from at rt. ∠ to slope, but no evidence if this)

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)