RECORD: Darwin, C. R. n.d. The number of close species in genera having 4-6 species. CUL-DAR16.294-295. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Text prepared and edited by John van Wyhe. 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.

294

The number of close species in genera having 4, 5, & 6 species each

Page

1

2

2

2

3

2

 

2

 

2

 

2

 

2

4

2

 

2

 

2

p. 5

4

6

2

 

2

 

2

 

2

7

4

 

2

 

2

8

0

9

0

10

2

11

0

12

2

 

4

48

 

 

13

2

 

2

14

2

 

2

15

2

 

2

 

2

16

0

14 [+] 48 [=] 62 Total close species in these genera

 



(Close species in genera with 4)

Page

 

Page

p 1

2

 

2

0

 

3

2

 

 

2

 

4

2

 

―

2

 

5

4

 

6

2

 

 

2

 

7

2

 

8

0

 

9

0

 

10

0

 

11

0

 

12

0

 

13

2

 

14

2

 

―

2

 

15

2

 

16

2

 

30 = 15 sp.

 

294v

Genera with 6 species

p 1

1

2

1

3

4

4

2

5

1

6

3

7

1

8

2

9

0

10

1

11

0

12

1

13

1

14

1

15

1

16

0

20 [x] 6 [=] 120 species with six

295

Asa Grays fine species as by M.S.

page

genera with 4 & upwards

Genera with 3, 2, 1 species

1

6

6

2

6

10

3

16

8

4

12

10

5

12

10

6

38

2

7

22

2

8

0

2

9

6

6

10

14

8

11

6

4

12

14

0

13

18

2

14

8

4

15

26

8

16

2

4

206

86 = 292 or 146 pairs (triplets omitted) of fine species.

 

substract 62

62 add — viz the closer species in 4, 5, 6, sp. genera

144

148

―

 

 

 

103

43

 

subtract 31

31 add

72

74



1005 with 5 & upwards
subtract 260 { genera with 5 sp 140 [+] genera with 6 120 [=] 260
[=] 745    species with 7 & upwards

917 with 4 & downwards [-] 361 [=] 556 with 4, 3, & 2 species
add 260 [=] 816 with 6, 5, 4, 3, & 2.

103 - 43

295v

72,000 [÷] 845 [=] 96    74,00,0 [÷] 816 [=] 8

74,000 [÷] 816 [=] 90


[illeg] [=] 1005    917 [-] 361— less 1 genus [=] 556
88,000 [÷] 1005 [=] 87    58,000 [÷] 556 [=] 104 145

176 [÷] 2 [=] 88    57 [x] 2 [=] 116

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

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