Bisbee daily review., 1909-11-23


 CT his rights.
 In this fruitful section there may be found all varieties of climate, rang ing from the heat and aridity of the utterly barren rock masses near the Mexican boundary to the more equable temperature of the plains, the tenn perate and partially humid climate of the grass and forest-eoyered noun tain valleys, and the cold of the high er mountains.
 Topography Described
 The greater part of southwestern Arizona is of comparatively low ele- vation, consisting largely of parallel mountain masses from 1,09e to 3,909 feet elevation, trending In northwest. erly and southeasterly directions with broad and level valleys lying between The mountains in this part of the territory are largely devoid of forest or other vegetable covering, and the valleys destitute of vegetation, but the soil of the latter, being made up of alluvial deposits from the eroded mountains, is very fertile. and needs only the application of water to re- spond bountifully to the efforts of the agriculturist.
 The eastern and more northern DOT tions of the district consist of high plateaus broken by detached noun tain systems and isolated spurs hay ing the general trend of the Rocky Mountain system.
 The plateaus range in elevations from about 5000 feet near the Mexi- can boundary to more than 5000 feet in the northern part, and some of the mountain peaks reach elevations of 10000 feet, or more.
 The broad valleys of the southwest ern part of Arizona and their prolon- gations into the higher elevations rep resent the portion of that territory economically available for irrigation under present conditions. Here what appears as barren wastes of sand may, by the application of water, be converted into veritable gardens where many of the products of the temperate zone as well as those of the tropics may be successfully grown.
 irrigation Projects
 Several large irrigation projects unr der the direction of the Reclamation Service are now nearing completion the Salt River project for the irriga- in that region, chief among which are tion of large areas in the Salt and Gila river valleys, and those along the lower Colorado from Yuma north ward.
 Many other smaller projects under private control are already in exis- tence and doubtless other large areas win be available for irrigation, as the development of electric or other pow CT makes it possible to economically lift the waters from the beds of the rivers, or from underground, and de liver them to the plains and valleys far removed from the streams.
 The plateau districts are as ruis too dry for the successful pursuit of agriculture, unless supplemented by irrigation, but they afford good pas turage during portions of the year. In the higher mountain disericts forests abound, and there are many valleys where good pasturage is found and where cereals and fruits may be sue cessfully grown without irrigation.
 Climatic Characteristics.
 Over the lower elevations embrac. ed principally in the southwestern part of Arizona, including the valleys of the lower Colorado and Gila rivers with elevations from few feet tc less than 5000 feet above sealevel the summer heat as registered by tho thermometer appears torrid in charac ter, frequently rising above 100 de grees and at times to 120 degrees il the shade during the days of tn warmer months of the year. The rel alive dryness, of the atmosphere, du to its capacity for absorbing moistur at such high temperatures and tn cooling effect of the intense evapoI alton as felt by animal life, causes tn sensible temperature to appear man