326 G. Barns — Note on the Constants of Coronas. 



Table 1. Constants of coronas. Condensation chamber 20^™ 

 broad, 25^™ bigh, So*^™ long. Distances of eye and source from 

 chamber 85<=™ and 250^"^,resp. ^=22"; barom. YS'S^™; Sjo^lG'Q'^"^ ; 

 y^-VY; a=-064; )Q=0; /S'=2-6; a" = -0029 (subsidence); a'=-0032 

 (diffraction); ?i„=209,000; m = 4'7XlO~6 ; s measured to outer 

 edge of first ring. Phosphorus nuclei. First Series, Welsbach 

 lamp. 



z 



t 

 17m 



cm 



corona* 



n' = 

 275 s' 



470 6-3 



H^-l) 



no 



n 



d= 

 •021u-^ 



1 



.... 



xio-3 



XlO-3 



2-2 



XlO-3 



460000 



cm 



2 



20 







b'r' 











1-7 





350000 



•000290 



3 



23 



.. 



or' 









1-3 







270000 



320 



4 



27 



10-3 



yob 



300 



403 



1-000 







210000 



350 



5 



30 



8-3 



wcg 



157 



212 



•751 







158000 



385 



G 



34 



6-8 



wpbg 



86-3 



116 



•557 







117000 



425 



7 



37 



6-0 



gbp 



59-4 



80-0 



•403 







84600 



475 



8 



41 



5-8 



Avrg 



53-6 



72-2 



•289 







60700 



530 



9 



44 



4-6 



w br b i p 



26-7 



36-0 



•204 







42800 



595 



10 



48 



4-2 



wrg 



20-4 



27-4 



•137 



200 



28800 



680 



11 



51 



3-7 



corona 



13-9 



18-8 



•090 



208 



19000 



780 



12 



54 



3-2 



(( 



9-0 



12-1 



•055 



221 



11500 



920 



13 



57 



2-6 



a 



4-8 



6-5 



•032 



205 



6700 



•001110 



14 



60 



2-0 



(( 



2-2 



3-0 



•015 



199 



3100 



1430 



15 



63 



1-3 



ii. 



•6 



•8 



•004 



220 



800 



2250 



Second Series. Electric and ruby light. ^=15^5" ; barom.,' 

 75^8=^; 8^=16-9^'"; a = -0632 ; >S'=2-5 ; m=:4^2xlO-6; n^ = 

 188,000. Other data as above. 



z 



t 

 min 



s 

 cm 



corona 



250 s3 



n"=: 

 335 s3 



H'-l) 



no 



n 



d= 

 •020 n-H 









xio--'^ 



XlO-3 





xio-3 





cm 



1 



41 



_. 











2^2 





412000 



.000269 



2 



44 



.. 



v'g'r' 









1^7 







318000 



293 



3 



48 





wy g' v' 









1^3 







244000 



320 



4 



51 



9^0 



wopg 



182 



244 



rooo 







188000 



349 



5 



55 



8-3 



w'cyg 



145 



195 



•746 







140000 



385 



6 



58 



6-5 



w g b p 



70-2 



94-1 



•554 







104000 



426 





62 



5-7 



w vg b 



47-5 



63-6 



•402 







75600 



473 



8 



65 



5-4 



wrg 



39-2 



52^6 



•286 







53800 



531 



9 



68 



4-7 



wgbp 



26^0 



34-8 



•201 







37800 



595 



10 



71 



4^2 



wrbg 



19-2 



25-7 



•137 



188 



25800 



676 



11 



74 



3^7 



wybg 



12^7 



17-0 



•091 



186 



17200 



775 



12 



78 



3-1 



wobg 



7-8 



10-5 



•056 



186 



10500 



913 



13 



81 



2-7 



corona 



4-9 



6^6 



•033 



200 



6200 



.001090 



14 



84 



2-1 



a 



1^9 



3-1 



•017 



188 



3100 



1370 



15 



87 



V4 



i( 



•7 



1^0 



•006 



180 



1000 



1960 



* Dashes denote approaches to a color, thus g' is greenish. 

 color. 



Dots denote deep 



