Eugene Shoemaker with some of the first geologic maps of the Moon, Flagstaff AZ, mid-1960's Many people are surprised when they learn that well before the first landing of Apollo in 1969, we already ...
DR. WELLS'S new book, although essentially a text-book of stratigraphy, is something more than a formal descriptive catalogue of the various divisions and subdivisions of the geological column. It is ...
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