This volume is designed especially to aid in reading mathematical economics and statistics.

It is also equally adapted to the use of those who wish a short course in 'The Calculus,' as a matter of general education. It is admirably adapted to its purpose in either case."

Teachers who have tested the book in classrooms have become enthusiastic over its "teachableness.

Irving Fisher has provided adequate exercises; and he cheers the labors of the student by indicating from time to time their economic significance. Probably it would not be possible to obtain what may be called a saving knowledge of the subject at the cost of less trouble than that which is required to master these 85 pages. They contain what is necessary and sufficient to fulfill the purpose proposed by the author, namely to "enable a person without special mathematical training or aptitude to understand the works of Jevons, Walras, Marshall, or Pareto, or the mathematical articles constantly appearing in the "Economic Journal," the "Journal of the Royal Statistical Society," the "Giornale degli Economisti," and elsewhere."