RECORD: Darwin, C. R. & Francis Darwin. [1874].07.16. Table of number of leaves per plant. CUL-DAR59.1.84. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2022. 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-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).
[84]
average by leaves per plant Moths – Ant - Spiders |
Total no. of leaves |
No. of leaves with insects |
total no. of insects |
(20 to 24 July 16th- 20 to 24 on many leaves) In this list each letter represents a different plant and each figure the no. of insects on an individual leaf. Thus plant A has 8 leaves first two leaves examined had no insects 3rd had one 4
80 leaves have been examined of wh. 63 had insects on, ie 79 per cent
I think from the number of other plants I have looked at that a wider average would not produce a materially different result |
A 0 0 1 3 5 0 2 1 = 8 |
8 |
5 |
12 |
|
B 1 1 0 2 4 0 2 1 2 1 = 10 |
10 |
8 |
14 |
|
C 1 4 2 1 3 1 7 1 3 1 2 = 10 |
11 |
11 |
26 |
|
D 2 2 1 2 2 1 9 7 |
7 |
7 |
19 |
|
E 0 0 2 0 1 0 0 1 8 |
8 |
3 |
4 |
|
F 2 2 1 1 0 2 2 0 8 |
8 |
6 |
10 |
|
G 3 2 1 2 3 0 1 7 |
7 |
6 |
12 |
|
H 4 1 4 3 3 1 |
6 |
6 |
16 |
|
I 0 1 3 1 2 2 3 0 0 9 |
9 |
6 |
12 |
|
K 3 3 6 1 0 5 6 |
6 |
5 |
18 |
|
10 Total |
80 |
63 |
143 |
[84v]
[calculations not transcribed]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 2 November, 2022