n8 



A CONTINUOUS RECORD OF ATMOSPHERIC NUCLEATION 



TABLE 5. NUCLEI DUE TO X-RAYS OR TO FILTERED P EMANATION; DATA 



FOR d AND n. 



X io" 6 ; pit = 2.11 n'/tcm"* io 6 ; /= 1 5^-45* 



Sp= 17 cm.; FILM, SOFT DAMAR VARNISH. 



TABLE 6. AIR NUCLEI; DATA FOR n. ^ = 4.7 X io-<g/cm'; 

 * = 30 s -i5*; Sp= 17 cm.; c= 5 X 26 X (.OO3O4) 2 . 



|/JT= 



19. Diameters and numbers. The d -values given by the photographs are 

 almost without exception larger than the corresponding diameters computed 



