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LEFT CLIFTON 21 CLIMATB wooden lintels in the doors and windows, which were probably closed with skins or blankets. The walls were finished with a plaster of clay. The inhabitants sub- sisted probably mainly by hunting and fish, as the soil about these localities is barren. The Pueblo Indians, who are still to be found in that section, are de- scendants of the Cliff Dwellers, and pos- sess considerable skill in making articles of pottery, etc. perature, humidity, variations of baro- metric pressure, the tranquillity of the atmosphere or the effects of wmds, the purity of the air, or its mixture with gaseous emanations more or less salu- brious; and lastly, the habitual diaphan- ity of the atmosphere, that serenity of the sky so important on account of the influence which it exercises not only on the development of organic tissues in vegetables and the ripening of fruits, but CLIFF DWELLING, MESA VERDE CLIFTON, a city of New Jersey in Passaic co., on the Erie and the Dela- ware, Lackawanna and Western rail- roads. It is an important industrial city, having large cotton and worsted mills, and is also the center of an important agricultural and horticultural region. It has electricity for power and lighting, an abundant supply of water power, and many handsome business buildings. Pop. (1910) 11,869; (1920) 26,470. CLIFTON FORGE, a city of Virginia, in Allegheny co. It is on the Chesapeake and Ohio railroad. Its industries in- clude railway shops, flour mills, and ma- chine works. In the neighborhood are deposits of iron ore and limestone. Pop. (1910) 5,748; (1920) 6,164. CLIMATE, in its most general ac- ceptation, embraces all those modifica- tions of the atmosphere by which our organs are sensibly affected; such as tem- also on the ensemble of moral sensatioiis which mankind experience in the differ- ent zones. There are two general causes on which the climate peculiar to any country principally depends: First, its distance from the equator; second, its al- titude above the level of the sea; but their effect is generally modified by many circumstances exerting a partial influ- ence. Among these may be enumerated the configuration and extent of the coun- try; its inclination and local exposure; the direction of the chains of mountains by which it is intersected, or which are in its vicinity; the nature of the soil as it is more or less favorable to radiation, absorption, and evaporation; the proxim- ity to, or distance from, seas; the action of winds blending the temperatures of different latitudes; and even the changes produced by cultivation. The apprecia- tion of all these causes, which modify the results deduced from the consideration of