This is a technical book on the microscope in nontechnical language, written by a technical microscopic consultant and a professor of biology. There are chapters on the historical development, types, structure and use of simple and compound (both monocular and binocular), stereoscopic, matallurgic and polarizing microscopes and their accessories. The authors describe the various types of illumination and the adjustment of illuminating equipment and explain the common errors in the use of the microscope. There is a chapter on the use of the microtome, and a glossary and a bibliography are included. The book is well illustrated and written in essentially nontechnical language. It fills a need for an introduction to the use of the microscope for any one who must use this instrument without thorough instruction in all the finer details of its adjustment.