MABERY, Charles Frederic, chemist, born in North Gotham, Maine, 13 January, 1850. He was graduated at the Lawrence scientific school of Harvard in 1876, and received his doctorate in course in 1881. Meanwhile he held the place of assistant in chemistry from 1875 until 1883, when he was called to the chair of chemistry in the Case school of applied science in Cleveland. He has published in the " American Chemical Journal" numerous papers giving the results of original researches, with Charles L. Jackson, Henry B. Hill, Rachel Lloyd, and others, in the laboratory at Cambridge. After he removed to Cleveland he became associated in the recent development of the electric production of aluminium, having been engaged in the early experimental work and in the performance of other chemical investigations for the company controlling the patents. In this connection he has invented a new method for the preparation of anhydrous aluminium chloride. Professor Mabery is a member of the American academy of arts and sciences and of the German chemical society, and was elected secretary of the chemical section of the American association for the advancement of science in 1887, but did not serve.