146 



INTRODUCTION TO GENERAL SCIENCE 



References : 



1. 1103:142-145. 



2. 1304:249-250. 



3. 1304:262-266. 



a. 1102:285-292. 



Rainfall and its Causes. 



Rain, Snow, Hail. 



Storms and their Causes. 



Causes, Measurement, and Distribution 



of Rainfall. 



Rainfall and its Distribution. 

 Rain, Snow, Sleet. 

 Rain, Rainfall, Snow, and Hail. 

 Rainfall. 



Causes of Rainfall. 

 Rain Making. 

 Rainfall. 

 Cyclonic Rains. 

 Causes of Rainfall. 



107. WEATHER OBSERVATIONS 



In about eighty places scattered over the United States, 

 the United States Government takes observations of' the 

 weather every morning except Sunday, at 8 A.M., Washington, 

 D.C., time. These records are then compiled at various 

 head stations, where each day at about 2 o'clock, Washing- 

 ton time, a map is published which shows the conditions of 

 the weather all over the country. These maps are distributed 

 freely to schools and to other public institutions. One who 

 will study such a map will obtain a great deal of information 

 concerning the weather, and if a series of maps is examined 

 carefully, not merely scanned, nearly every change known 

 about the weather will be manifest. 



References : 



1. 1103:274-292. 



2. 1304:426-427. 



a. 1102:318-333. 

 6. 1301:102-104. 



Weather Maps and Weather Predictions. 

 Weather Maps. 



Weather Observations in the United States, 

 Weather Maps. 



