Page:Popular Science Monthly Volume 41.djvu/825

Rh mode of life of their inhabitants. Massed together and built of adobes of rock laid in mud-mortar, and reared in tiers or terraces of from two to three or more stories high, they admirably fulfill



the triple purpose of a durable architecture, a communistic plan of living, and as a fortress in the event of an attack from outside marauders.