“ The longest is the Yaqui, which has its source on the eastern side of the Sierra Tarahumare in Chihuahua and breaks through several ranges of the Sierra Madre before reaching the gulf near Guaymas. The smaller tributaries of these rivers of Sonora are often only dry canyons in the dry season. Agriculture has been developed only to a limited extent in Sonora, because of its aridity, lack of irrigation facilities, lack of railways and roads, and the unsettled state of the country. ”

“ Sugarcane, tobacco, maguey, cotton, in small quantities, and fruits are also produced. There are excellent pasture lands, especially in the upland districts, and stock-raising is an important and profitable industry. Land is held in large estates, some of them upwards of 100 sq. ”