The double title given to this book is not meant to imply that theosophy and new thought are approximately identical. The inclusion of the two in a single volume is rather a matter of convenience than of logical classification. It is recognized that, while they have distinct points of similarity, they also exhibit quite apparent contrasts in spirit and content. Contents: Theosophy: historical outlines; appraisement of Theosophy by Theosophists; attitude assumed toward competing faiths; basis of authority; doctrine of God; cosmological theories; conceptions of man and his destiny; Theosophic principle of authority tested; comments on prominent features of the Theosophical system; New Thought: general sketch; doctrine of man; conception of God and of man's relation to him; therapeutic scheme; some grounds of criticism.