ON THE PRE-CAMBRIAN ROCKS OF THE BRITISH ISLES. ARE THERE TRACES OF GLACIAL MAN IN THE TRENTON GRAVELS? GEOLOGY AS A PART OF A COLLEGE CURRICULUM. THE NATURE OF THE ENGLACIAL DRIFT OF THE MISSISSIPPI BASIN. Studies for Students. DISTINCT GLACIAL EPOCHS, AND THE CRITERIA FOR THEIR RECOGNITION. [13] Analytical Abstracts of Current Literature. [19]
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