First published in 2002. This is Volume I of twenty-two in a series of 20th Century Philosophy focuses on American Philosophy. This is volume I of the two, written in 1930 is a collection of essays dedicated to George Herbert Palmer and his expansion of thought which has gone on from the restricted outlook of Hopkins, Porter, Bowen, and McCosh to the wide horizons of Dewey, Montague, Hocking, and Whitehead.