An introduction to the modern theory of equations, by Florian Cajori.

The present work falls into two nearly equal parts. The first 103 pages treat the following topics: Elementary properties and transformations of equations; location and approximation of the roots of numerical equations; solution of cubic, biquadratic, binomial and reciprocal equations; the linear and Tschirnhausian transformations. The remaining 120 pages are devoted to substitution groups and Galois's theory of the solution of algebraic equations.The work has much that may be praised; in p...