Colonies -- expansion movements -- and their part in world history. The changes in method, up to the present systems of protectorates and mandates. What have colonies cost? What is the ultimate value? Is the theory of their need for colonization to relieve congestion justified by facts? Do they supply actual markets, gain in raw materials, etc. to compensate for their costs of upkeep. Colonial experiences of principal colony holding powers discussed comparatively, indicating that Japan alone has profited by their experience. A book for thoughtful students of international problems, and singularly well-timed in face of Germany's current demands. Colleges -- libraries.