88 



A CONTINUOUS RECORD OF ATMOSPHERIC NUCLEATION. 



TABLE 15.— CONSTANTS OF CORONAS. CONDENSATION CHAMBER AND DIS- 

 TANCES UNCHANGED. ARC LIGHT; PHOSPHORUS NUCLEI; 5 TO OUTER 

 EDGE OF FIRST RING; ^=21°; BAROM., 75.6 cm.; (J/j = 8.5cm.; >' = .85; /3 = o; 

 5 = 6.7 ; a' = .0034; a" = .oo29; h„=iioooo; m=2.6Xio"'. 



First Series. — dt=2"'. 



' Seen very obliquely this changes to w g. 

 2 Alternative 9530, 4040, 500. 



Second Series. — »„= 680000; 5 = 6.3; 6t=2" 



