A PREVIOUS work of this author, “Higher Mathematics for Students of Engineering and Science,” has already been favourably reviewed in these columns, and the present volume will supply a real want in the introduction of trigonometry at an early stage of the mathematical course. Mensuration is naturally dealt with more fully than when this subject is merely included in a text-book on arithmetic. The simple solution of a triangle is well treated. Throughout there are numerous examples of an interesting and practical character. In the last chapter mention is made of spherical triangles.
Part 1: Numerical Trigonometry and Mensuration. By Frederick G. W. Brown. Pp. x + 222. (London: Macmillan and Co., Ltd., 1928.) 3s. 6d.