KINDS OF WINDS 129 



warmed, it expands, and, becoming lighter, is shoved upward 

 by the air flowing in from all directions to take its place. This 

 produces the winds, and no matter what kind of winds they 

 may be, they are all produced in the same way. 



References : 



1. 1103 : 73-80. Air Pressure. 



2. 1103 : 180-192. General Circulation of the Atmosphere. 



3. 1304 : 255-262. Winds of the Earth. 



4. 1601 : 4. Winds Caused by Sunshine. 



5. 1803 : 58-63. Pressure in Air. 



a. 1102 : 11-14. Pressure and Extent of the Atmosphere. 



b. 1102 : 82-85. Measurement of Atmospheric Pressure. 



c. 1301 : 85-90. Air Pressure. 



d. 1303 : 24-26. Pressure of the Atmosphere. 



e. 1305 : 78-89. Movements of the Atmosphere. 

 /. 1306:83-84. The Nature of Winds. 



g. 1307 : 214-225. The Atmosphere and Winds. 



h. 1308 : 94-99. Movements of the Atmosphere Winds. 



i. 1804 : 155-163. Atmospheric Pressure. 



95. KINDS OF WINDS 



All general breezes of the earth are caused by the air of the 

 equator being hotter than the air at the poles. These breezes, 

 or winds, are called terrestrial winds, and are divided into 

 four classes, starting from the equator, the doldrums, the 

 trades, the prevailing westerlies, and the circumpolar whirls. 

 There are local breezes called the sea breeze and land breeze, 

 the day breeze and the night breeze, the mountain breeze 

 and the valley breeze; but they are all based upon the same 

 principle. The land and sea breezes may be taken as ex- 

 amples for explanation. 



In the daytime the land becomes warm faster than the 

 ocean, because the land is opaque and stops the energy of the 

 I 



