Darwin-Hooker Letters : Letter from Darwin, C. R. to Hooker, J. D. on 12 Oct 1849 : 1r

'Darwin, C. R.'

Darwin-Hooker Letters

Darwin thinks great dam across Yangma valley is a lateral glacial moraine. Reports on Birmingham BAAS meeting. Details of water-cure. Barnacles becoming tedious; careful description shows slight differences constitute varieties, not species. Lamination of gneiss.

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