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


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

File last updated 25 September, 2022