RECORD: Darwin, C. R. [c.1827-1831?]. [Note on rock formation in Massachusetts]. CUL-DAR5.B92. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2020. RN1
NOTE: Abstract of Notices of the lead mines and veins of Hampshire County, Mass. etc.; by Alanson Nash. Silliman's Journal Vol. 12, 1827. Darwin's refers to the illustration of a geological section given by Nash.
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Silliman's Journal Vol. 12 P. 248
Mr Nash gives a section in the county of Hampshire, Massachusets shewing that the rock formation is covered by a layer of sand, this by gravel, which passes into a stratum of rounded masses of all sizes [An] analogous to that of Agassiz.—
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 16 October, 2023