PROF. DAVID ELLIS, professor of bacteriology in the Royal Technical College, Glasgow, died suddenly at his home in Bearsden on January 16, aged sixty-two years. He was educated at the University College of Wales, Aberystwyth, and after graduating in the University of London in 1896, taught for some time as a science master in secondary schools. Later he proceeded to the University of Marburg where he gained his Ph.D. degree in 1902, for researches in bacteriology. On returning to Great Britain he again took up science teaching, this time in Dollar Academy, and from there he went, as lecturer in bacteriology and botany, to the Glasgow and West of Scotland Technical College, the lineal descendant of the old Anderson College, now the Royal Technical College, Glasgow. Later he was appointed professor of bacteriology in the College and superintendent of its Schools of Pharmacy and of Bakery.