PREFACE 



THE separate chapters of this book have already 

 been published as essays in periodicals. The first, sec- 

 ond, third, and seventh appeared in The Hibbert Jour- 

 nal; the fourth, in The Philosophical Magazine and 

 in the University of Cincinnati Studies; the fifth, in 

 The Monist; and the sixth, in The Unpopular Review. 

 But they have been rewritten and enlarged so as to 

 form chapters for a connected discussion of the Limita- 

 tions of Science. This was not a difficult task since I 

 have had this purpose in mind from the beginning. 



CINCINNATI, 



December 2, 1914. 



