PREFACE xix 



satisfactory arrangement of certain details in this book. 



In reading the proof the author was aided by his wife 

 and Miss Charlotte B. Peck, and desires to express his ap- 

 preciation for this valuable service. The author wishes 

 to acknowledge his indebtedness to his wife for encour- 

 agement and assistance in the preparation of the book. 



F. STUAKT CHAPIN. 



Northampton, July, 19.13. 



