EXPERIMENTS WITH IONIZED AIK. 



89 



field, as contained in table 6. The gi'apli is obviously curved so that Ohm's law is 

 departed from, but the curvatuiv is snuiU, indicating a limit as yet a great way off. 

 12. Further data. — These results are now to be compared with similar data for 

 condensers respectively lai'ger and smaller in diameter. They are given in tables 7 

 and 8, the diameters chosen being 2/ii = 6.9 centims. for KS and 27?— 23.3 centims. 

 for K 2, respectively. The tables contain, besides the immediate results a and t, the 

 potential difference F^and the field, as well as the cnri'ents Sn/St, and the <piantity 

 n^K, computed as nsual. 



TABl.K 8.— RESULTS FOR CONDENSER K 2 {D=27,.7, cm.) FOR DIFFERENT 

 POTENTIAL DIFFERENCES V. ^=26.8°. 



The cui rents here obtained are also grai)hically reproduced in the chart, figure 

 14, where the abscissas are the fields in vt)lt/cm, and ordinates are the currents in the 

 usual ai'bitrary measure. The relative conductivity of the three condensei-s is 

 maintained and the saturated state (maxima of the curves) is in all cases enor- 

 mously distant. The relative curvatures of the three graphs within fields of tiie 

 same intensity cannot be made out. Table 7 virtually contains two series made 

 on different "days, in which the ionizing activity of the phosphorus was veiy 

 different. 



