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Heron, Alexander Macmillan, 1884-
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1. The geology of the Mount Everest region : from the surveys of Dr. A. M. Heron, Geological Survey of India, 1921
Heron, Alexander Macmillan, 1884-. Rock types, dips, and faults are shown. Relief shown by shading and spot heights. "The topography from Map I." Geology drawn upon base map construc... London : Royal Geographical Society, 1922.