Note 1 — Chapter I · PHYSICAL CHARACTERISTICS OF THE ARID REGION.

For the determination of the proper unit for pasturage farms the writer has conferred with many persons living in the Rocky Mountain Region who have had experience. His own observations have been extensive, and for many years while conducting surveys and making long journeys through the Arid Region this question has been uppermost in his mind. He fears that this estimate will disappoint many of his western friends, who will think he has placed the minimum too low, but after making the most thorough examination of the subject possible he believes the amount to be sufficient for the best pasturage lands, especially such as are adjacent to the minor streams of the general drainage, and when these have been taken by actual settlers the size of the pasturage farms may be increased as experience proves necessary.