RECORD: Darwin, C. R. n.d. Primula veris [measurements and calculations]. CUL-DAR78.12. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/).

REVISION HISTORY: Transcribed and edited by John van Wyhe 6.2025. 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.


12

p. 4B

Primula sins  
Breadth of young leaves
6.55 [÷] 5 [=] 1.31 [-] 1.03 [=] Different .28    5.15 [÷] 5 [=] 1.03
Says leaves on averg .28 of an inch broader or about 1/4 of an inch (exactly .28)
4. 6/8

3 6/ 

5

5 1/ 

3 3/ 

4 4/

26 .4/8

 

2 3/8

3

3 2/ 

2 1/

3

4

17 5/8

 

24.50 [÷] 6 [=] 4.08 17.625 [÷*] 6 [=] 2.93

 


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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 11 June, 2025