Effect of the Spectrum on the Haloid Salts of Silver. 



261 



Table IX. 

 f f g ?f ] Gelatine plate. See Fig. 9. 



Scale 

 number. 



Mean 





Belative 



Eeduced 

 to maxi- 

 mum 

 of 100. 



Ordinate 

 of curve 



Scale. 



sector 

 reading. 



Opacity. 



sensi- 

 tiveness. 



to wave- 

 length 

 scale. 



Exposure. 



Sector 

 reading. 



Bare 













mins. sees. 





glass 



74 















8 



73 



1 



7 



6 



8 



6 



5 



H 



72 



2 



81 



7 



7 



5 



6 



81 



561 



171 



18 



14 



14 



4 



7 



8f 



43 



31 



23 



19 



19 



3 



8 



9 



18 



56 



43 



35 



34 



2 



11 



91 



9 



65 



71 



58 



58 



H 



17 



10 



7 



67 



120 



99 



99 



1 



30 



m 







122 



100 



100 



30 



641 



ii 



'*9 



65 



71 



58 



60 







74 



hi 



8 



66 



90 



74 



75 







hi 



9 



65 



71 



58 



59 







12 



12 



62 



57 



47 



48 







121 



11 



63 



60 



49 



51 







13 



16 



58 



47 



39 



40 







131 



20 



54 



40 



33 



34 







13f 



24 



50 



35 



29 



30 







14 



31 



43 



29 



24 



25 







14J 



35 



39 



26 



21 



21 







141 



46 



28 



21 



17 



18 







14| 



51 



23 



20 



16 



17 







15 



60 



14 



17 



14 



14 







151 



66 



8 



14 



11 



11 







15i 



69 



5 



12 



10 



10 







16 



72 



2 



8 



7 



7 







