This book represents the attempt to provide the student in the one semester introductory course in logic with 1. a handbook of the fundamentals of the science, brief and succinct enough to be practical and yet substantial enough to provide him with the solid foundation of the traditional from which to approach the aEURO mysteriesaEURO of modern developments in the field. 2. A working knowledge of the science, out of which there may be built the personal equipment with which the student may be able to solve for himself the problems posed by the impact of the new on the old in the field of logic. 3. Sufficient problem material to enable the student to learn the use of logic, so that in reconciling in his own mind the new and the old, the modern and the traditional, he may do this logically.