266 Capt. W. de W. Abney and Mr. G. S. Edwards. 



Table XIV. 



4 ^f^T i ^J e ^- with. Ery throsin and Cyanin. See Fig. 12. 



Scale 

 number. 



Mean 





Relative 



Reduced 

 to maxi- 

 mum 

 of 100. 



Ordinate 

 of curve 



Scale. 



sector 

 reading. 



Opacity. 



sensitive- 

 ness. 



to wave- 

 length 

 scale. 



Exposure. 



Sector 

 reading. 



Bare 



















47 















2 



43 



4 



2 



94 



9 



1 



8 



24 



40 



'j 



34 



16 



16 



30 



10^ 



■"4 



341 



121 



* 



321 



301 



15 



231 



3 



27 



20 



124 



58 



61 



10 



30 



34 



17 



30 



211 



100 



100 



5 



m 





23 



24 



154 



72 



73 







47 



44 



^4 



23 



24 



151 



72 



74 







41 



231 



231 



15 



70 



65 







4f 



19 



28 



19 



88 



91 







5 



20 



27 



18 



84 



88 







5i 



30 



17 



10 



46 



48 







51 



33 



14 



8 



37 



38 







5f 



35 



12 



61 



30 



31 







6 



37 



10 



5 



23 



25 







61 



361 



101 



51 



25 



27 







7 



381 



81 



41 



21 



23 







71 



40 



7 



31 



16 



18 







8 



40 



7 



31 



16 



18 







81 



36 



11 



6 



28 



30 







9 



321 



141 



81 



39 



42 







91 



28 



19 



114 



53 



56 







10 



28 



19 



Hi 



53 



56 







10| 



291 



171 



10 



46 



48 







11 



32 



15 



81 



39 



42 







111 



34 



13 



7 



32 



30 







12 



34 



13 



7 



32 



30 







13 



34 



13 



7 



32 



17 







