Previous lists of this series have been given every three years at the ends of vols. 11–22 (1897–1931) of this Magazine. The 1,506 names in the first ten lists are included in one alphabetical arrangement in the General Index (1926) to vols. 11–20 (1895–1925). References to ‘Mineralogical Abstracts‘ are given in the form [M.A. 5–200]. ‘A compilation of gem names’ by Gilbert Hart (Rocks and Minerals, Peekskill, New York, 1927–31, vols. 2–6) is an extension of the earlier list of W. T. Schaller (1918; 8th List) and contains many trivial, local, and trade names which are not included in the present lists.