fo C ZANT- This may be used in other lines already con- sidered, the difference extends from the spinal column has passed. BiBLIOGRAPHY.-——Sir J. S. Haldane, Organism and En- vironment (New Haven, 1917); R. S. de Courcy Laffan and Brigadier-General R. Kentish, C.M.G., D.S.O. Education Officer, London