Table 86. 



RATE OF DECREASE OF VAPOR PRESSURE WITH ALTITUDE FOR 

 MOUNTAIN STATIONS. 



(According io tlie empirkal formula of Dr. J. Hanti.) 

 h 



f ~2 



— = lo 0300 



e, fjj = Vapor pressures at an upper and a lower station respectively. 

 // = Difference of altitude in meters. 



Table 87. 



DEPTH OF WATER CORRESPONDING TO THE WEIGHT OF A 

 CYLINDRICAL SNOW CORE 2.655 INCHES IN DIAMETER. 



(One-fifth pound equals i inch.) 



Smithsonian Tables. 



202 



