RECORD: Darwin, C. R. Cross cleavage & conversion of clayslate in gneiss show that original cleavage planes determine mineralogical planes. CUL-DAR42.61 Transcribed by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by John van Wyhe, corrections by Kees Rookmaaker 5.2011. RN1

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


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Cross cleavage & conversion of clayslate in gneiss show that original cleavage planes determine mineralogical planes — will shrinking of whole mass determine cleavage = When Glacier cleavage from pulling. = & my volcanic rocks =


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

File last updated 2 July, 2012