RECORD: Darwin, C. R. n.d. Abstract of Engelmann, Ueber Entwickelung von Infusorien. CUL-DAR69.B34. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 4.2023. RN1
NOTE: 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).
Engelmann. T. W. 1876. Sur le développement et la multiplication des infusoires. Archives de Zoologie Expérimentale 5: XXXIII-XXXVIII.
See Cross and self fertilisation 2d ed., p. 412: "Engelmann concludes that the conjugation of various Infusoria, whether permanent or temporary (in this latter case called by him copulation) does not lead to the development of true ova, but to the reorganisation or rejuvenescence of the individual. There seems to be a close analogy in such a result with that which follows from the union of the male and female elements of distinct plants, for the seedlings thus raised may be said to show regeneration or rejuvenescence in their greatly increased constitutional vigour."
[B34]
Archives de Zool. Exper. Tom V. 1876 No 3 p. XXXIII. good abstract on Engelmann on Conjugation — His rejuvenescence does not not differ essentially from my view of use of ordinary sexual reproduction.—
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 27 August, 2023