GUMS AND RESINS. By E. J. Parry, B.Sc., F.I.C., F.C.S.
THE BOOT AND SHOE INDUSTRY. By J. S. Harding
GAS AND GAS MAKING. By W. H. Y. Webber
FURNITURE. By H. E. Binstead
COAL TAR. By A. R. Warnes
PETROLEUM. By A. Lidgett
SALT. By A. F. Calvert
ZINC. By T. E. Lones, M.A., B.Sc.
PHOTOGRAPHY. By Wm. Gamble
ASBESTOS. By A. L. Summers