COMMERCIAL ARITHMETIC BY S. JACKSON, M.A., FORMERLY POSTMASTER OF MERTON COLLEGE, OXFORD; London: MACMILLAN AND CO. AND NEW YORK. 1893 [All Rights reserved.] AUTHOR'S PREFACE. IN N this book it is assumed that the reader has a competent knowledge of elementary arithmetic and therefore the theoretical portions of the work are limited to the methods which are best adapted for commercial calculations. These methods are discussed chiefly in §§ I. and VI., though isolated examples occur elsewhere. The greater part of the book is devoted to the actual operations of business. An endeavour has been made to give full and accurate information on all commercial subjects of first-rate importance, including British and Metric Weights and Measures, The Pricing of Goods, The Prices and Standards of Trades, Stocks and Shares, Banking, Bills of Exchange, the London Money Market, the Foreign Exchanges, etc. Certain methods of readily saving labour have also been suggested, involving only the gradual construction of small and convenient Tables in the Counting-house itself. The immense superiority of decimal operations over all others, especially in the application of methods of |