Some Observations on a Sojourn Through Europe, Part I
Joel M. Halpern
DATE: January 1950
SOURCE: Rocks and Minerals, vol. 25, iss. 1, pp. 28-34.
RELATED URL: http://www.heldref.org/rm.php
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ABOUT THIS DOCUMENT:
Reprinted with permission of the Helen Dwight Reid Educational Foundation. Published by Heldref Publications, 1319 18th Street, NW, Washington, DC 20036-1802. www.heldref.org. Copyright (c) (1950).