BOOK REVIEWS

---

BOOK REVIEWS HANDBOOK OF MATHEMATIC.4L TABLES A S D FORMULAS. By R . 5. Burington. 251 pages. Handbook Publishers, Inc., Snndusky, Ohio, 1933. Price, $2.00.

all of the important developments during the year. The reports are sufficiently complete to give an idea of the subjects under consideration, and with references to the original source of information one is able to obtain the details when desired. ALLEN ROGERS

THEbook is divided into two sections: The first gives formulas and theorems of elementary mathematics, and the second comprises 30 tables commonly used in engineering and mathematical computation. In the first section the chapters on Algebra, Elementary Geometry, Trigonometry, and Analytical Geometry are relatively short and cover the fundamentals only. Chapters on Differential and Integral Calculus are much more complete, including a table of 331 integrals, a table of the common derivatives, and a table of 30 of the more important infinite series. The common engineering tools of logarithmic plotting paper and the slide rule are not’ discussed, nor is the frequent handbook practice of employing illustrative examples followed. The second section is the larger and more valuable. The principal tables are those of the logarithms of numbers, trigonometric functions and their logarithms, powers, roots, reciprocals, circumferences, and areas of circles, natural logarithms, exponential and hyperbolic functions, multiples of log e, probability integral, and interest’, discount’, and annuity tables. The principal tables are, in general, considerably more complete than those ordinarily given in engineering handbooks. For example, the trigonometric functions are tabulated for every minute and the table of logarithms gives values to five places of numbers from 1 to 10,000. The omission of tables of Bessel functions and common Fourier series limits the value of the book for a student in advanced mathematics, but is of no importance to the ordinary chemist or engineer. In material covered and in relative completeness the book lies between the engineering handbook sections on mathematics and the complete tables of mathematical functions in use by physicists and mathematicians. I t seems to fill an important need of the chemist and engineer for a convenient handbook of more complete tables than those available in the engineering and chemical handbooks. The type is clear and of good size and the book is bound in a suitable waterproof binding. T. I