80 



TIIK STKt'CTUKK OV THE NUCLKtJS. 



TABLE 5. -CORONAS IN rKIROLEUM VAl'OR. EXHAUSTION, 76-59 cm. PUNK 

 NUCLEI. GLOBE, 23 cm. IN I)L\METER. FIRST SERIES. DIAMETER OF 

 DkOIM.ETS, J IN cm. 



Corona. ' 



Nucleation 



Gray, tawny, bl flame 



Or, bl flame 



Rd " " 



Shaken. Bl-gr 



Yl-gr 



Gr-yl 



Shaken. Gr-yl 



\Vh, or-rd, gr 



Wh, prp, gr 



\Vh I " (distorted) 



Shaken. Apple-gr 



Yl-gr 



Wh, or-rd, gr 



Wh, cr, gr 



Yi, gr, br 



Gr-yl, bl, rd 



Wh, rd, gr 



No. Time. 



Corona, ./(cm ) 



Wh, rd, gr 

 Wh, br, bl, gr 

 Regular coronas, 1/ -- 



'8 ; 54 



'9 55 

 20 I 56 



2 2 i 



23 ' 

 24 



25 

 26 



27 

 28 



29 



30 69 



3' 



32 Faint 



33 

 36 

 40 

 — Sealed up for next day 



JVext day : Coronas 

 absent in each of 

 five exhaustions 



Shaken : Five ex- 

 haustions do not 

 remove corona 



After 2'' : Vessel 

 again free from 

 coronas 



Ten exhaustions 

 breed a faint co- 

 rona, showing fil- 

 ter not quite per- 

 fect 



' Abbreviations as in table 2. 



TABLE 6.— CORONAS IN PETROLEUM VAPOR. AIR NUCLEI. EXHAUSTION, 

 76-59 cm. DIAMETER OF DROPLETS, </ IN cm. 



Exhaustion 

 No. 



3 

 4 



5 

 6 



7 

 8 



9 



10 

 1 1 

 12 



'3 

 >4 



•5 

 16 



17 

 18 



19 



Series II. 

 New Filter. 



Yl, or, rd 



" " faint 

 Wh. rd 



" (/=:.OOI3 



«' = .ooi7 



Very faint 



" </=.ooi8 

 " ,/ = .ooiS 



Etc. 



Series I. 



Gr-yl 



Normal 



" distorted 

 Greenish 



n 



Shaken 



ExhaustionI 



No. I 



20 

 2 I 

 22 



23 



24 



25 

 26 



27 



28 



29 



30 



3' 



32 



3i' 



34 



35 



36 



37' 



38 



Series 1. 



Shaken (/^.ooii 



" (/:==. 001 1 



■' =.0011 



= .0011 



= .0010 



= .0010 



J =.0012 



= .0012 



d = .00 1 44 

 d =.00144 



No. 



39 

 40 



41 



4- 



43' 



44 



45* 



Scries I. 



(/ =.00144 



(/ =.0018 

 1/ =.0019 

 J =.0022 



' Waited 30" 



Waited 40". 



' Wailed 40'" 



* Waited 3'' . 



