The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1856]. Boreau Corrected Calculation. CUL-DAR16.137a-137c. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2021. 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. The volume CUL-DAR16 contains calculations and tables for Darwin's 'big book' Natural Selection F1583.

Darwin recorded reading this on 12 May 1856 in his 'Books Read / Books to be Read' notebook. Text CUL-DAR128.-

[137a]

Boreau

There are 1483 species altogether, of them 318 are marked C.C. – Of species which present vars. there are 193, and of them 78 are marked C.C. So.

Total C.C 318

Total no. of species [calculation] before 1/4 & 1/5

Sp. C. C. & having vars. 78

Sp. having vars [calculation] 1/2 & 1/3 corrected

Genera with 5 sp & upwards

C.C./163

sp. as above [calculation] 3/4 & 1/5

Genera with 4, 3, 2, & 1 sp

C.C./155

sp. as above [calculation] 1/4 & 1/5 each now common

[137b]

Boreau Flora du Certu de la France 1840 (Rubus, Rosa & Salix omitted, & [illeg] & some naturalised plants)

Genera with 5 sp & upwards

sp in above genus 732

sp having vars [calculation not transcribed]

Genera with 4 & downwards 741 [calculation not transcribed]

varying sp 113

no of vars [calculation not transcribed]

80/ [calculation not transcribed]

Genera with 8 sp & upwards

sp in above genera 505

sp having vars [calculation not transcribed]

Genera with 7, 6, 5 & 4 sp 343 [calculation not transcribed]

[137v]

Boreau [calculation not transcribed]

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