[Communicated June 6, 1946.] 1Previous lists in this series have been given every three years at the ends of vols. 11–26 (1897–1943) of this Magazine. The 1560 names in the first ten lists are included in one alphsbeical arrangement in the General Index (1926) to vols. 11–20 (1895–1925). References to ‘Mineralogical Abstracts’ are given in the form [M.A. 9-].