gsminmag Clay Minerals Clay Minerals 0009-8558 Mineralogical Society 10.1180/minmag.1975.040.310.21 Book Reviews An Introduction to X-Ray Spectrometry Hall A 6 1975 40 310 215 215 Jenkins R. An Introduction to X-Ray Spectrometry 1974 London and Rheine Heyden & Son, Ltd. xi+163 pp., 87 figs. Price £5·00 Copyright © 1975, The Mineralogical Society 1975