[Book Reviews] | Nature

ABSTRACT THIS is the first of a geological series of books to be published under the general editorship of Prof. J. W. Gregory. Two others are promised. After reading the book one feels that

the author could himself have contributed three separate books on petrology. In this small volume, igneous, sedimentary, and metamorphic rocks are all dealt with, and the space is quite

inadequate to the subject. The author is very widely read, as his numerous and excellent abstracts published in _Science Progress_ prove, and he has endeavoured to include in his book every

recent contribution to the science of petrology. It is indeed, to quote the author's preface, “a conspectus of the present state of the science of petrology,” but it is a little

doubtful whether the workers in other branches of geology or “students who have acquired an elementary knowledge of the science” will know quite how much to believe when they have read it

all. The Principles of Petrology: on Introduction to the Science of Rocks. By Dr. G. W. Tyrrell. (London: Methuen and Co., Ltd., 1926). 10_s_ net. Access through your institution Buy or

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permissions ABOUT THIS ARTICLE CITE THIS ARTICLE [Book Reviews]. _Nature_ 120, 10 (1927). https://doi.org/10.1038/120010a0 Download citation * Issue Date: 02 July 1927 * DOI:

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