Bigelow — Meteorological Elements of the United States. 425 



North Plateau, /South Plateau, West Gulf States. 



Solar Prominences, Magnetic Field, Temperature, Vapor Pressure, Baro- 

 metric Pressure. 



as a yearly amount is the product of the transportation of 

 heat in horizontal currents, rather than of direct heating oy 

 radiation. The comparisons of the sun's heat, observed with 



