AIR ENERGIZED BY X-RAYS. 



45 



TABLE 26. Attempted breaking to pieces of nuclei. Bulb axial at 80 cm. from end. 

 Exposure, 3 min. Fog-limit air, s = i.o 1.5 at 8^ = 24.7; with X-rays origi- 

 nally : dp = 24.8, 5 = 3.8. Filter with wet-sponge tube. 



* Exposure, 7 min : 8^ = 24.8, 5 = 3.6. 



f Accidental influx rapid and large : 8^ = 24.8, 53 = 2.8, 54 = 2.4, 55 = 0.8. 



40. X-ray nuclei at different high-pressure differences. The follow- 

 ing experiments originated in a somewhat similar purpose to the pre- 

 ceding section. In table 27, Si and s 2 show the apertures of the 

 coronas on first and second exhaustion , filtered air being added in the 

 meantime, after an exposure to relatively weak radiation. The aper- 

 tures are a maximum at 8^ = 15 17 cm., after which they decrease 

 faster than the increased precipitation on the nuclei warrants (fig. 39). 

 The w-curves and the ^-curves with increasing Bp are both similar. 

 As the final fall of curve depends on the difference of the opposed 

 effects of larger precipitation and greater number of particles within 

 the range of condensation, the very small nuclei must here be in 

 absence. 



TABLE 27. X-ray nuclei at different pressure differences. 



apparatus, 3 cm. 



Distance of bulb from 



*Thin drifting fog. 



t Long spindle. 



\ Floating veil. 



