Biographical Notices of Mineralogists Recently Deceased, (Third Series.)
L. J. Spencer
Assistant-Keeper in the Mineral Department of the British Museum (Natural History).
1Series I and II in Min. Mag., 1921, vol. 19, pp. 240–259; 1924, vol. 20, pp. 252–275. An index to earlier notices in vols. 1–19 was given in vol. 19, pp. 259–262. Professor P. N. Chirvinsky of Novoeherkassk has again very kindly given much information for the notes on Russian mineralogists; I have also to thank Dr. George F. Kunz of New York and Professor F. Slavík of Prague for help.