gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1932.023.138.02 On the Changed Composition of an Anorthoclase-Bearing Rock-Glass1 Hawkes L. D.Sc., F.G.S. Reader in Geology, Bedford College, London University. Harwood H. F. M.Sc., Ph.D., A.I.C. Lecturer in Chemistry, Imperial College of Science, London.

Unless otherwise stated, the chemical analyses given in this paper were made by Dr. H. F. Harwood. The remainder of the work was carried out by Dr. L. Hawkes who has written the paper.

 9 1932 23 138 163 174 Copyright © 1932, The Mineralogical Society 1932