DR. FRIEDRICH KEHRMANN, professor of organic chemistry at the University of Lausanne, died on Mar. 4. We are indebted to the Chemiker-Zeitung for the following details of his career. Born at Coblenz in 1864, Kehrmann became deeply interested in chemistry while still a boy, but being at first unable through lack of means to attend regular classes, he studied by himself. He became so proficient in analytical work that he obtained a post as analytical assistant to Fresenius at Bonn. In 1887 he graduated at Basel under Nietzki, with whom he carried out an investigation of quinones. After graduation he became assistant to Glaus at Freiburg, where from his observations upon diorthosubstituted quinones he formulated the well-known hypothesis of steric hindrance,– a generalisation which has been very extensively applied in the study of other branches of organic chemistry.