RECORD: Darwin, C. R. n.d. Natural selection. Imperfection of Work. CUL-DAR47.111v. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2022. 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-DAR47 contains notes for Natural selection chap. 7 'Laws of Variation'.


[111v]

Natural Selection Imperfection of Work

no doubt the [illeg] of the great injuries to it — —Horse Horse-fly Horses leap & alight so gently not perceived on our own faces — natural selection has not done its work for gnat— anymore than that a very fleet animal fox or Hawk has not become under infinity fleet—

The prickle or bite by gnat injurious to itself — — in Vampire Bat corrected — The tickling by flea flea injurious counteracted counteracted by jumping & difficulty in being crushed,— the flea of armadillo cannot jump.—The swelling after gnat bite or Bug's bite not injurious to gnat or bug as [2 words illeg] ensue afterwards— in Tsetze fly very injurious to the fly, as causes death of its prey.— Many animals banished from many countries by Diptera— An incidental consequence— like a plant poisonous to animal which does not live on it.—


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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 28 August, 2023