RECORD: Darwin, C. R. n.d. Common Species / Asa Gray Corrected Calculations. CUL-DAR16.124b-126. 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.


[124]

(Common Species) (Asa Gray. Corrected Calc)

total sp. 2053

common sp. [calculation not transcribed]

Sp. having big or small & type vars 202 [calculation not transcribed]

Genera with 5 sp & up [calculation not transcribed]

sp in 1136 common [calculation not transcribed]

Genera with 4, 3, 2, & 1 sp. [calculation not transcribed]

sp in 917 common sp [calculation not transcribed]

Big type vars.

Genera with 5 & up

sp in 1136 Big-type vars [calculation not transcribed]

Genera with 4, 3, 2, & 1

sp in 917 Big-type vars [calculation]

/over

[124v]

Genera with 5 sp & up.

no. of species having small type vars 74

no. of species having big type vars 38 [total] 112

species no. above genera 1136

sp. having big & small type vars [calculation not transcribed]

Genera with 4, 3, 2, 1 sp

no. of sp having small type vars 34

no of sp ---- big type 31 [total] 65

sp. no. 917

sp. having big & small type vars [calculation not transcribed]

Proportion of vars to species. Both large & small type vars included.

sp. having either big & small type vars 112

vars. small & big [calculation not transcribed]

sp. having either big & small vars 65

no. of vars. big & small all [calculation not transcribed]

Chiefly for comparison with monotype

[125A]

species havng small & big-type vars

[calculation]

[125]

(2

(Asa Gray) Common Sp.

There are 2053 species of these 521 are marked common. Of the species having small & big type vars, there are 202, & of these 82 are marked common.

Common Sp. 521

total spec [calculation not transcribed]

Common & having either small or big type 82

Big & small size var [calculation not transcribed]

Common species in the large & small genera

Genera with 5 sp & upwards

common sp 326 [calculation not transcribed]

Genera with 4, 3, 2, 1. spec

common sp 195 [calculation not transcribed]

Genera with 9 sp & upwards 710

sp. having small type vars [calculation not transcribed]

Genera with 8, 7, 6, 5 sp [calculation]

[126]

(3

(Asa Gray. Close Species)

N.B. species being in pairs in fact reduces number of sp.

He marked the close 160 in number (omitting Salix), but several of these were allied to others, these I have omitted, as they were difficult to compare with any standard & which has injured the result for me.

Nor have I much confidence in result of any kind, as Dr G. told me in subsequent letter, not to trust much. Omitting single genera we can thus pretty equally divide the species.

Genera with 7 sp & upwards [calculation not transcribed]

Genera with 6, 5, 4, 3, 2 sp [calculation not transcribed]


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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 7 September, 2023