The efforts which have been made in recent years to provide the beginner in philosophy with a ten-book suited to his needs are justified both by the importance of the subject and by the requirements of educational method. It is obvious that an introduction should really introduce, in other words that it should presalt philosophy in such a way as to arouse the student's interest, gift him a firm grasp of essentials, and encourage him to further study. But how these results are to be secured is still an open question. The books that have so far appeared have, each from its own point of view, distinct advantage either as outlining the history of philosophical problems, or as aetting forth the claims of rival systems, or as explaining the principles which serve as the foundation of some special system and a basis of criticism in discussing variant theories. An introduction that will combine these several utilities seems to be our present need. Dr. Dubray's aim in this volume is to lead the student by easy approaches into the field of philosophy and to show him its divisions with their several problems and the solutions which these have received In accordance with the principles of correct method, the knowledge which the student has already acquired is made to serve as the starting-point, and from this he is led on to the consideration of more abstract philosophical concepts and theories. These again are presented in clear statement and orderly sequence, with sufficient indication of outstanding questions, yet without the mass of detail which sometimes destroys proportion or results in narrowness of view. At the same time, definite conclusions are presented with the evidence on which they rest, so that the student may get from his use of the book not merely a lot of vague question., but a certain amount of positive knowledge and critical direction for later investigation.