RECORD: Darwin, C. R. 1881.03.18-1881.05.02. [Observations on worms drawing pieces of paper into burrows]. CUL-DAR65.91-93. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2021. 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.
91
March 18th
(11) 1 n. by middle
1 n. g base
1 B by apex – base possibly little bent at one angle
1 n V by apex – base not bent, clean
1 n. V by apex do do
1 n. V by apex - basal part somewhat drawn over hole, but basal angles not bent, a little dirty
Used
Yew Trees
1 n by base
1 n. by base
1 n V by apex, doubled .5 of inch, base not bent clean
1 n V by apex doubled .7 inch do do do
1 n. V by apex, about wholly drawn in & crumpled – basal angles not bent, not dirtied.
March 19th
1 n. by tip. doubled .5 inch – base not bent, but dirty
1 n by base.
March 20
1. vn by apex – straight – base not bent clean
1 vn. by apex twisted do do
1 vn. by apex, but whole apical part twisted – base not bent, clean
1 B. by base much angled
1 B by apex – almost drawn part in; one basal angle bent
[March] 22 1 vn. by apex base not bent, dirtied. V
92
March 23
(12) 1 n. by apex}
1 n. by middle} old, triangle in & I can say nothing about basal angles
1 n. by base
March 24 1 nv by apex, base not bent
1 n doubled by middle
1 n by apex, but base also slightly doubled in [sketch]
1 n. doubled by middle
1 n do do
1 nv by apex but not bent dirty
1 nv by apex but not bent rather dirty – much rain
March 25
1 n by apex, base also drawn in, bent & dirtied
1 n by apex – base not bent nor dirty
1 n by base – V
All Narrow Triangles
Ap. 13th 2 drawn in by apex, but base afterwards drawn in almost completely: I think it would have been hardly possible for the worm to have drawn other 2 first in by base, as basal part wd in this case have been doubled.
Ap 14th 1 by base, can angle B
[Ap] 15 1 doubled by middle D
[Ap] 25 1 drawn by apex, & afterwards by one of base at angle
1 do, a basal angle not bent little O
1 by base. B (over)
92v
Ap 26th Narrow triangle
(13) 2 by apex – basal angles not bent or dirtied
1 by base B
Ap 27 1 by base B
1 by apex, basal angles O not bent & clean
1 do – do ? doubled (Ap 27 14)
1 do basal angles not bent quite clean
Ap 28 Ground in following places properly watered last night
under School0room under-Laurels – walk in road
6 by apex 5 by base B 6 by middle 1 (19-2=17)
2 arched ie by tip & base [sketch] – to be excluded.
N.B. Of above 2 in same hole, one by apex & by base
Ap 29 2 doubled
X 3 by apex – basal angles not bent nor dirty
X 1 by apex do do – but dirty.
Ap 30 X 7 by apex – of these, 2 afterwards draw in by base. 4 with basal angles not bent, but 1 with base dirtied.
3 by middle
1 by base.
[calculations]
93
May 1st 1881 Narrow triangles of paper
(14) 2 arched [sketch] (not to be counted)
1 by base 1 by apex} same hole
2 by base B 4 by apex
May 2d 3 by base B 3 by apex – (in one above it cd be told that basal angles not bent) O
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 September, 2022