Several reasons prompted the author to undertake at this time a literary review of the decade which has just closed.It is exceedingly difficult to refrain from replying in some measure to the charges which in one way or another imply an incompetence on the part of psychology to take its place among the empirical sciences and to make contribution to the fund of knowledge in terms of its own special procedures.The criticisms have come from without and from within the discipline.Philosophers have recently informed us that "the present is a strange and troubled time for psychology" 2 and that the science is compelled "to revise its scale of values, shift its emphasis and direction of progress, and enter into relations of better understanding and cooperation with philosophy, or accept as its portion a distinct subject-matter and move in the direction of increased isolation from human affairs and the remaining body of scientific knowledge." 3Nor does reproach cease here: from the philosophers we must hear reports of desertions in our own ranks.Says one critic: "To those who have grown suspicious of the definitions and methods commonly employed