

a a 





Araouot of ralu. 



2+tlT++7tT++7 



Temperature of dew point 



-^fo — o — -,^ — o©««b©« 

 i + I + I I I I +4-+ I + 



Temperature of the air. 



Pressure of the atmosphere. 



o — 6©©» — — — 6©»«6 — 

 + I+-HI I I + I + I + 



gooooo©©©©©©© 

 »" I 4- 1 + + + I + + + + + 



Mean weight or u cubic foot 

 of air. 





Mean whole amount of water 



in 8 vertical culurou of 



atmosphere. 





Mean degree of humidity. 

 (Complete saturation = 1.) 



I 1^ (N t^ 00 — © — "^ «o — © — 

 ©©©©6©©©©©©© 



Mean additional weight of vapour 



required to saturate a 



cubic foot of air. 



©©©00 



Mean weight of vapour in a 

 cubic foot of air. 





Mean elastic force of vapour, 



or mean amount of water mixed 



with the air. 



^'O-^esxi — 05 — •OOiO'^S 



=©©66©6©666©6 



Mean temperature of dew point. 





Mean Amount, to 10. 



— =:r*xa)<?»«poD«p©co« 

 ?bt^r*'>CJ^r^r*i>«bxcbx 



Strength, to G. 



(NXOiOl(?*TfC<-"X— X'O 



J-,6©© — — — — 6 — ©6 



'^ 



;© — •t«(»'*«0©'*©«« 



bl" 



1^ s a 



§ a5»2 0.i2 s3 3 « « ®^ 



•a X 



