Copyright, 1917By THE MACMILLAN COMPANYSet up and printed. Published May, 1917.
Copyright, 1917By THE MACMILLAN COMPANYSet up and printed. Published May, 1917.
FOREWORD
I desire gratefully to acknowledge my indebtedness to the Smithsonian Institution, the U. S. Reclamation Service, the U. S. Geological Survey, the American Society of Civil Engineers, and the officials of the Southern Pacific Railroad Company, for their courtesy in furnishing me information, or permitting me to make use of their maps, diagrams and illustrations.
George Kennan.