Intensity of Light reflected from Coloured Surfaces. 67 

 Intensity Curves. 



1 

 t 



Scale No. 



Yellow. 



Orange. 



Eed. 



Blue. 



Green. 



Neutral 

 Tint. 



White. 



43 



GO 



80 



75 







6 



37 



100 



44 



74 



88 



80 



4 



14 



41 



100 



45 



90 



90 



90 



7 



22 



43 



100 



4(> 



9fi 



84 



80 



12 



28 



43 



100 



47 



94 



70 



40 



16 



34 



40 



100 



48 



90 



50 



16 



21 



40 



39 



100 



49 



80 



40 



10 



26 



44 



39 



100 



50 



66 



30 



6 



32 



46 



40 



100 



51 



52 



22 



5 



41 



40 



40 



100 



52 



40 



17 



4 



51 



32 



40 



100 



53 



38 



13 



4 



56 



24 



38 



100 



54 



35 



10 



3 



59 



17 



35 



100 



55 



32 



6 



3 



60 



13 



32 



100 



56 



31 



3 



2 



57 



10 



29 



100 



57 



31 



2 



2 



63 



8-5 



27 



100 



58 



30 



1 



2 



50 



8 



25 



100 



From this table are deduced the luminosity curves which 

 are in the following table, the luminosity curve of the white 

 being that given in the Bakerian lecture for 1886. 



Luminosity Curves. 



Scale No. 



Yellow. 



Orange. 



Eed. 



Blue. 



Green. 



Neutral 

 Tint. 



White. 



43 



1-5 



20 



1-8 







1-2 



•9 



2-5 



44 



12-2 



16-5 



132 



•6 



23 



6-7 



16-5 



45 



58-5 



58-5 



58-5 



45 



14-3 



28'0 



65-0 



46 



90-2 



79-0 



75-2 



11-2 



26-3 



40-4 



94-0 



47 



940 



70-0 



400 



16-0 



340 



40-0 



1000 



48 



84-6 



470 



150 



19-7 



37-6 



3(;-7 



940 



49 



64 



32 



8-0 



20-8 



35-2 



31-2 



80-0 



50 



28-7 



130 



2-6 



13-9 



20-2 



17-4 



43-5 



51 



100 



4-4 



•9 



8-0 



7-7 



7-8 



19-4 



52 



3-8 



1-8 



•4 



4-9 



3-0 



3-8 



9-6 



53 



2-0 



•7 



•3 



3-2 



1-4 



2-2 



5-8 



54 



1-2 



•4 



•2 



2-1 



•3 



1-3 



3-6 



55 



•7 



•1 



•1 



1-2 



•2 



•7 



2-1 



56 



■4 







•7 



•1 



•4 



1-3 



57 



•3 







■5 



•1 



•3 



1-0 



58 



•2 







•3 





•2 



•6 



Areas... 



453 



323 



217 



107 



183 



218 



534 



F 2 



