gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1981.044.334.27 Book Reviews The Bowie-Simpson System for the Microscopic Determination of Ore Minerals Howie R. A. 6 1981 44 334 243 244 Bowie S. H. U. Simpson P. R. The Bowie-Simpson System for the Microscopic Determination of Ore Minerals London McCrone Research Associates 1980 First students issue. and Oxford (Blackwells Sci. Publ.) 3 figs., 4 charts. Price £2·50 Copyright © 1981, The Mineralogical Society 1981