Previous lists of this series have been given at the ends of vols. xi–xv (1897– 1910) of this Magazine. In addition to new names, a few older names, not mentioned in Dana's ‘System of Mineralogy’ (6th edit., 1892) or A. H. Chester's ‘Dictionary of the names of minerals’ (1896), are hero included. Bibliographical references to some of these have been kindly supplied to me by Dr. R. Koechlin of Vienna.