FIRST STEPS IN COMMERCIAL ARITHMETIC. By Arthur E. Williams, M.A., B.Sc. In crown 8vo, limp cloth, 80 pp.

THE ELEMENTS OF COMMERCIAL ARITHMETIC. By Thomas Brown. In crown 8vo, cloth, 140 pp.

BUSINESS ARITHMETIC. Part I. In crown 8vo, cloth, 120 pp.

BUSINESS ARITHMETIC. Part II. In crown 8vo, cloth, 144 pp.

COMPLETE COMMERCIAL ARITHMETIC. Contains Parts I and II above mentioned. In crown 8vo, cloth, 264 pp.

SMALLER COMMERCIAL ARITHMETIC. By C. W. Crook, B.A., B.Sc. In crown 8vo, cloth

FIRST STEPS IN WORKSHOP ARITHMETIC. By H. P. Green. In crown 8vo, limp cloth, about 80 pp.

COMPLETE MERCANTILE ARITHMETIC. With Elementary Mensuration. By H. P. Green, F.C.Sp.T. In crown 8vo, cloth gilt, with Key, 646 pp.

THE PRINCIPLES AND PRACTICE OF COMMERCIAL ARITHMETIC. By P. W. Norris, M.A., B.Sc. In demy 8vo, cloth, 452 pp.

COUNTING HOUSE MATHEMATICS. By H. W. Porritt and W. Nicklin, A.S.A.A. In crown 8vo, cloth, 120 pp.

ARITHMETIC AND BOOK-KEEPING. By Thos. Brown, F.S.S., and Vincent E. Collinge, A.C.I.S. In two parts. Each in crown 8vo, cloth. Part 1, 124 pp, 1/6 net. Part 2, 115 pp.

LOGARITHMS FOR BUSINESS PURPOSES. By H. W. Porritt and W. Nicklin, A.S.A.A. In crown 8vo, limp cloth

RAPID METHODS IN ARITHMETIC. By John Johnston. Revised and Edited by G. K. Bucknall, A.C.I.S. (Hons.). New and Enlarged Edition. In foolscap 8vo, cloth, 96 pp.

EXERCISES ON RAPID METHODS IN ARITHMETIC. By John Johnston. In foolscap 8vo, cloth

METHOD IN ARITHMETIC. A guide to the teaching of Arithmetic. By G. R. Purdie, B.A. In crown 8vo, cloth, 87 pp.

THE METRIC AND BRITISH SYSTEM OF WEIGHTS, MEASURES, AND COINAGE. By Dr. F. Mollwo Perkin. In 8vo, with numerous illustrations

ARITHMETIC OF ALTERNATING CURRENTS. By E. H. Crapper, M.I.E.E. In crown 8vo, illustrated

ARITHMETIC OF ELECTRICAL ENGINEERING. For Technical Students. In crown 8vo, illustrated

THE SLIDE RULE: ITS OPERATIONS; AND DIGIT RULES. Pocket size

THE SLIDE RULE. A Practical Manual. Illustrated