RECORD: Darwin, C. R. [1875-1880]. Draft leaf of Earthworms, p. 16, and Cross and self fertilisation, p. 167-8. LINSOC-DWC.2.19. (Cite as: John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Catalogued, transcribed and edited by John van Wyhe 3.2026. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Linnean Society of London and William Huxley Darwin. LINSOC-DWC.2 consists of an album of draft leaves of Darwin's books, Earthworms, Insectivorous plants, Cross and self fertilisation, Expression, and Power of movement deposited by The Charles Darwin Trust.

This rough draft of Darwin's book on worms was transferred to the family scrap paper pile after creation of the fair copy, which is now in CUL-DAR24 & CUL-DAR25.


[19]

It appears that they keep their head just under the mouth of their burrows, act in manner   chiefly in the morning, & I believe that they act in this manner that they come to the surface that it is for the sake of warmth, especially in the morning. ; for & we shall presently herewith see that they that they live   often times the mouth of their burrows  besides closing  with leaves they eithe rline them with leaves, apparently to prevent their bodies coming into close contact with the cold damp earth. It is said Morren says (p 16) that in the winter during the winter they completely close their burrows.) with a discharge of earth.

[19v]

Ononis

(1868), the two crossed plants were of exactly the same height, viz, 11 4/8 inches; and the two self-fertilised plants 12 6/8 and 7 2/8 inches; so that one of the self-fertilised exceeded considerably in height all the others. By the autumn of 1869 the two crossed plants had acquired a the supremacy; their heights being 16 4/8 and 15 1/8, whilst that of the two self-fertilised plants was 14 5/8 and 11 4/8 inches.

By the autumn of 1870, the heights were  


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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 14 March, 2026