Book Reviews

Book reviewed in this article: Ordinary Differential Equations, a First Course, by Fred Brauer and John A. Nobel, University of Wisconsin. Introduction to Number Systems, by George A. Spooner, Professor of Mathematics, Central Connecticut State College and Richard L. Mentzer, Assistant Professor of Mathematics, Central Connecticut State College. Exploring Elementary Algebra, First Edition, by Mervin L. Keedy, Professor of Mathematics, Purdue University; Richard E. Jameson; Patricia L. Johnson, Supervisor of Mathematics, Montgomery County Public Schools; Joseph Ciechon, Chairman of the Mathematics Department, Bedford Junior High School. Experiences in Science and Science Teaching, by Kenneth W. Uhlhorn, Charlotte M. Boener, and Stanley S. Shimer. Chemicals from Fermentation by Peter A. Hahn