INDUSTRIAL CHEMISTRY 



BEING A SERIES OF VOLUMES GIVING A 

 COMPREHENSIVE SURVEY OF 



THE CHEMICAL INDUSTRIES 



EDITED BY SAMUEL RIDEAL, D.Sc. LOND., F.I.C. 



FELLOW OF UNIVERSITY COLLEGE, LONDON 



ASSISTED BY 



JAMES A. AUDLEY, B.Sc., F.I.C. J. R. PARTINGTON, M.A., Pn.D. 



W. BACON, B.Sc., F.I.C., F.C.S. ARTHUR E. PRATT.B.Sc., Assoc.R.S.M. 



E. DE BARRY BARNETT, B.Sc., A.I.C. ERIC K. RIDEAL, M.B.E., D.Sc., M. A., 

 M. BARROWCLIFF, M.B.E., F.I.C. PH.D., F.I.C. 



H. GARNER BENNETT, M.Sc. W. H. SIMMONS, B.Sc., F.I.C. 



F. H. CARR, C.B.E., F.I.C. R. W. SINDALL, F.C.S. 



S. HOARE COLLINS, M.Sc., F.I.C. HUGH S. TAYLOR, D.Sc. 



H. C. GREENWOOD, O.B.E., D.Sc., ARMAND DE WAELE, B.Sc. 



F.I.C. C. M. WHITTAKER, B.Sc. 

 JAS. KEWLEY, M.A., CANTAB, F.I.C. &c., &c. 



R. S. MORRELL, M.A., PH.D. 



