RECORD: Darwin, C. R. It is curious corelation of growth... CUL-DAR205.1.19 Transcribed by Kees Rookmaaker, edited by John van Wyhe (Darwin Online,

REVISION HISTORY: Transcribed by Kees Rookmaaker, edited by John van Wyhe 09.2014. RN1


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Reproduced with the permission of the Syndics of Cambridge University Library and William Huxley Darwin.


It is curious corelation of growth — small frontal bone, no core, no horn, in polled oxen.

Compare horned ox, polled & giraffe & have woodcut

Compare shepherd dogs tail, bones & muscles with those monkeys which have stumpy tails.

Compare pigs with solid hoofs — with horses— we see meaning of toes in former when we see abortive anthers in thyme — spines in plum — wings of tame duck, compare with Steamer — stump on polled ox — toes in solid hoofed pig— & meet analogous abortive or useless structures in wild species, we ought at least to have some solid reason for rejecting the analogical explanation — I do not say it is right one. — (Are there natural hornless antelopes to compare with hornless sheep.— ?)

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Citation: John van Wyhe, editor. 2002-. The Complete Work of Charles Darwin Online. (

File last updated 10 October, 2014