RECORD: Darwin, C. R. 6.1840. 'Considering the endless generations of organisms during almost infinite ages'. CUL-DAR205.5.30. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Kees Rookmaaker, corrections by John van Wyhe 11.2010. 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-DAR205.5 contains notes on the principle of divergence, transitional organs and instincts.


[30]

Maer June; 40 —

Considering the endless generations of organisms during almost infinite ages, it is no wonder that endless strange adaptations & endless strange forms produced — by the wear & tear of forms (like fragmnets of rocks rounded with endless figures) — It is not strange there should be leaches, — fish & blood-sucking bats — (P) Birds living on what others throw up — (NB in the Carrancha we see approximate habit, showing how instinct might have been formed —) In scissor-bill we cannot show intermediate form

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Kingfisher habits may be seen commencing in the Bien to Veo —

— P

In Sea Birds we can shew no gradation in habit on feeding on what other birds throw up — But in Sea Eagle. (quote the noble passage of American Eloquence) we can show Carrancha

Java swallows — Elizabeth thinks the common martin wets clay with saliva. see Yarrell


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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 25 September, 2022