The author summarizes his article as follows: 'Is there one stream of

human social consciousness and the changes wherever happening and in whatever different shape have some relationship with each other? What is the relationship of the transcendental genius to the part of the stream where he comes to the surface? Is the passage of time evolving higher types and bringing about more fundamental changes more intensely and more rapidly than in primitive times? Is comparative study of primitive and later cultural changes going to yield us clues to this process of change and incidentally recover to us the scientific knowledge of mind as Experimental Psychology is revealing the mechanism of individual mind?'