Abstract
THIS is a further addition to the well written and well printed introductions to physical geography and geology which have been produced of late years for American schools. We do not quite agree with the author as to the novelty of the arrangement of his material, but it is certainly effective, and the questions attached to many of the illustrations are such as will draw out the reasoning powers of the pupil. Chemical and mineralogical considerations are kept in the background, and rocks are very broadly dealt with, as when syenite is defined (p. 274) as consisting of “feldspar and mica,” and diorite as being “still less siliceous, composed of hornblende and feldspar—the latter mineral being of different variety from the feldspar of granite and syenite.”
The Elements of Geology.
By Prof. W. H. Norton. Pp. x + 461. (Boston, New York, and London: Ginn and Co., n.d.) Price 6s. 6d.
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C., G. The Elements of Geology . Nature 74, 102 (1906). https://doi.org/10.1038/074102a0
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DOI: https://doi.org/10.1038/074102a0