76 PHILOSOPHY OF STORMS. 



dew point was below the temperature of the air ; and the 

 agreement of the two methods was within the limits of the 

 errors of observation. In this case the base of the cloud 

 was over twelve hundred yards high. 



Moreover, the motions of the kite whenever a forming 

 cloud came nearly over it, proved an upmoving column of 

 air under it. I speak of cumulus clouds, in the form of 

 sugar loaves, with flat bases. 



