gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1974.039.306.22 Book Reviews Petrology of the Igneous Rocks Howie R. A. 6 1974 39 306 734 734 Hatch F. H. Wells A. K. Wells M. K. Petrology of the Igneous Rocks London Thomas Murby & Co. Geoge Allen & Unwin 1973 (Textobook of Petrology, volume one): 13th edn. 156 figs. Price :7·40 (hardback), :4·70 (paper) Copyright © 1974, The Mineralogical Society 1974