Abstract
DR. ELLES has lectured for several years past on this subject to women students at the University of Cambridge, and the well-printed and fully illustrated book under notice is based upon the course of instruction that she adopted. The relations of outcrop to contour-lines are shown in a series of boldly drawn maps, each with a section of the selected bed below. The details in these are intended to lead students to construct similar exercises on their own account. The shaded drawings of outcrops in relation to topography are excellent. British examples are used as types, and include the cauldron-subsidence of Glen Coe and the reversed fault in the Clifton gorge. Evidently the travels of the author throughout our islands have been aptly utilised. Some account might have been added of the methods adopted by the Geological Surveys of various countries for recording geological features on maps, especially in regard to the differentiation of superficial (surficial) deposits, since the range and variety of geological maps of our own islands are still unknown to many workers.
The Study of Geological Maps.
By Dr. Gertrude L. Elles. (Cambridge Geological Series.) Pp. viii + 74 + 7 plates. (Cambridge: At the University Press, 1921.) 12s. net.
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C., G. The Study of Geological Maps . Nature 108, 301 (1921). https://doi.org/10.1038/108301c0
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DOI: https://doi.org/10.1038/108301c0