SELF-REGISTERING ANEMOMETER AND RAIN-GAUGE. 133 



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Points of the Compass. 



Whole amount of hori- 

 zontal motion of the 

 air. 



Relative amount 

 horizontal motion 

 the aic'. 



(Mean = 1-00.) 



Number of hours in 

 which the direction of 

 the wind was referred 

 to each point. 



Relative time the direc- 

 tion of the wind was 

 referred to each point. 

 (Mean = 1-00.) 



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Average hourly hori- 

 zontal motion of the 

 air from each point. 



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Relative hourly hori- 

 zontal motion of the 

 air. 



(Mean= 1-000 



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Whole fall of rain ar- 

 ranged according to the 

 direction of the wind. 



Relative fall of rain. 

 (Mean = 1-00.) 



Whole time in hours 

 during which rain fell. 



Relative time during 

 which rain fell. 



(Mean = 1-00.) ~ 



Average hourly rate at 

 which rain fell. 



Mean quantity of rain 

 to every 1000 miles of 

 air. 



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