toward illuminating the pages of the story A which the Old World 
has been gradually hut surely revealing. 
Viewing the whole field of prehistorioal research 
we are struck with the fact that the past of man is rapidly dis- 
closing itself to our vision , so that presently we shall be able 
to look backward along the biological and cultural vistas of his 
coming, and connect the present with the vanishing point of the 
human perspective, with an ease and comprehensiveness little 
dreamed of until now. 
