A CONTINUOUS RECORD OF ATMOSPHERIC NUCLEATION. 



II 



TABLE 7.— IONIZATION OF PHOSPHORUS NUCLEI. (^FAi/= 2.5 LITERS/MIN. 

 CHARGE AT 20 VOLTS, 19.6 cm. DEFLECTION. 



TABLE 8.— RESUME 



Charge + 



+ 

 + 



a = .009 

 12 

 09 

 09 

 II 



- Mean .010 = a. 



There is slight excess of leakage for negative charges; but as the insulation 

 was io^Xa = 9-i2 for positive, and 1-2 for negative charges, these differences 

 are within the uncertainties of observation. One may again note that if the 



