Abstract
In spite of its title, this book is not what one would call a "treatise" on the subject: it is not a systematic exposition of the topics dealt with in this most important part of philosophy. Nowhere in it is found, for example, a detailed discussion of the role played by theories in metaphysics in connection with the proper method and distinctive features of the discipline. This is important, because the author calls his ideas a "theory" and one might ask, is this a new name for the old idea of encompassing in a single concept the totality of what there is and can be, or is this a wholly new approach to metaphysical problems?