is of more importance to the majority of people than the theory, attention is paid especially to the art of compu tation. The book contains a short introduction to the method of obtaining approximate results correct to any required degree of accuracy. This matter is new, but it is believed that it is well worthy of consideration. Chapters III and IV contain all the arithmetic and mensuration that is most needful to be known, and, in fact, will be found comprehensive enough to suit the requirements of pupils taking a survey of commercial arithmetic. GALVESTON, TEXAS, JOHN W. HOPKINS, |