PREFACE
I have told here the story of the last frontier within the United States, trying at once to preserve the picturesque atmosphere which has given to the "Far West" a definite and well-understood meaning, and to indicate those forces which have shaped the history of the country beyond the Mississippi. In doing it I have had to rely largely upon my own investigations among sources little used and relatively inaccessible. The exact citations of authority, with which I might have crowded my pages, would have been out of place in a book not primarily intended for the use of scholars. But I hope, before many years, to exploit in a larger and more elaborate form the mass of detailed information upon which this sketch is based.
My greatest debts are to the owners of the originals from which the illustrations for this book have been made; to Claude H. Van Tyne, who has repeatedly aided me with his friendly criticism; and to my wife, whose careful readings have saved me from many blunders in my text.
