Amount of milt. 



u 



II 



Temperature of dew point. 



Temperature of the air. 



pMMure of the atmosphere. 



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Mean weight of a cubic foot 

 of air. 



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Mean whole amount of water 



in a vertical column ot 



atmosphere. 





Mean degree of humidity, 

 (Complete saturation =^ i.) 



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Mean additional weight of rapuur 



required to saturate a 



cubic foot of air. 



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Mean weight of vapour in a 

 cubic foot of air. 





Mean elastic force of vajiour, 



or mean amount of water mixed 



with the air. 



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Mean temperature of dew point. 



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Mean amount, to 10. 



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Strength, to 6. 



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