On Some Rocks from the Saas-Grat, Compared with Erratic Blocks from the Neighbourhood of Lake Leman

Captain J. P. Marshall-Hall

F.G.S., etc.

Mineralogical Magazine; April 1883 v. 5; no. 24; p. 194-197; DOI: 10.1180/minmag.1883.005.24.08
© 1883, The Mineralogical Society
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