46 : PREFACE 
I have met uniform courtesy, kindness, and hospitality at the 
hands of Indians of the several tribes in the pursuit of my in- 
quiries, and my sincere thanks are due to very many men and 
women of the tribes, their great number preventing acknowledg- 
ment to them here by name. Special mention for conspicuous 
service rendered the author should be made of Dr. Susan La Flesche 
Picotte and her sister, Mrs. Walter T. Diddock, of Walthill, Nebr., 
daughters of Chief Iron Eye, otherwise Joseph La Flesche, of the 
Omaha tribe. Of the same tribe should be mentioned Wajapa, 
White Horse, George Miller, Daniel Webster, Amos Walker, and 
Richard Robinson. 
Penishka, of the Ponca tribe, enrolled on the Government rolls 
as Jack Penishka, Niobrara, Nebr., has given much useful infor- 
mation of his tribe. 
Of the Teton Dakota, mention should be made of Fast Horse and 
his wife, Joseph Horncloud, Otto Chiefeagle, and the well-known 
Short Bull. 
Of the Pawnee, special thanks are due Mr. James R. Murie, Mr. 
Alfred Murie and his wife, Chief White Eagle, Mr. David Gil- 
lingham, Mrs. Rhoda Knife-Chief and Mr. Charles Knife-Chief. 
My thanks are due also to Dr. Charles E. Bessey, of the University 
of Nebraska, for suggestions and encouragement in carrying on the 
work and to him and Mr. James Mooney for reading the manu- 
script. 
I wish to acknowledge also my obligation to Mr. W. E. Safford 
for his painstaking aid in arranging and verifying the botanical 
nomenclature. 
