Organic laboratory methods. By the late Prof. Lassar-Cohn. Authorised translation from the general part of the fifth revised edition by R. E. Oesper. Edited by R. Adams and H. T. Clarke. The World Wide Chemical Translation Series No. 2. Edited by E. Emmett Reid. Pp. xi + 469. London: Bailliére, Tindall & Cox, 1928. 30s