PEEFACE 



Survey; Frank Hodges, Purd B. Wright, Librarian, Kan- 

 sas City Public Library; Caryl De Voe; to Professor A. 

 A. Allen, Cornell University, for the illustration num- 

 bered 133 ; and to Professor A. E. Shirling for illustra- 

 tions 63, 64, 96 and 107. 



