The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Abstract of Claparède, On the theory of the fecundation of the ovum. CUL-DAR69.A6. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 4.2023. 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-DAR69 contains material for new editions of some of Darwin's books: supplemental note for Descent (2d ed. 1877), French trans. of 5th & 6th eds. of Origin; Coral reefs (2d ed. 1874); Coral reefs (3d ed. 1889); Climbing plants (2d ed. 1875); and Cross and self fertilisation (2d ed. 1878).

[A6]

Annals & Mag. of N. Hist. (2d s.) XVII. 1856 p. 298. Schultze & Leuckart have shown in Turbellaria that in these hermaphrodites, that "besides the vas deferens wh. leads from the testicle to the penis, there is a second canal wh. passes directly to the place where the eggs are formed" &c.

Quoted from a paper by Claparède.

What is use of Penis??—

(Intercrossing)

Claparède, Édouard. 1856. On the theory of the fecundation of the ovum. Annals and Magazine of Natural History 2d ser. 17 (April): 289-311.

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