When one sees American geologists, and especially those interested in the exploitation of petroleum, annually gathering to talk over their results, it is a most hopeful sign that we may soon expect greater advances in our knowledge of underground stratigraphy and paleogeography. But when, on the other hand, one thinks of the million or so driven wells of the United States, of which probably not more than 3 to 4 per cent have published logs of such accurate scientific worth as to be useful to the stratigrapher, we see at once how many of the possibilities for enhancing geologic knowledge...
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