Note from the publishers

NOTE FROM THE PUBLISHERS As from Volume 50 No. 1 the North-American

Editor of the Journal will be

Dr. J.B. Darby, Jr. Materials Science Division Argonne National Laboratory 9700 South Cass Avenue Argonne, Illinois 60439 - U.S.A. Dr. Darby succeeds Dr. H.H. Chiswik who has resigned because of ill-health. THE PUBLISHERS