lOO A CONTINUOUS RECORD OF ATMOSPHERIC NUCLEATION. 



ratus), and so long as the g-b-p corona is not exceeded (which again is the 

 actual case), the degree of rapidity of condensation on the usually occtu-ring 

 atmospheric nuclei is a matter of little consequence. Thus the same coronas 

 appear with non-filtered atmospheric air, ccct. par., both for the -|-inch plug 

 valve and for the i-inch instantaneous valve, even for large variation in the 

 size of the condensation chamber. 



