346 A. Pedler — Bleaching action of light on colouring matters. [No. 2, 



to 



S 



Exposed Daily to Direct Sunlight. 



14 



months 

 after. 



Entirely 

 bleached. 



» 



9) 

 99 



99 



10 

 months 

 after. 



Entirely 

 bleached. 



99 



99 



99 



2 



months 



after. 



Largely 

 bleached. 



Bleached 

 considerably. 



Largely 

 bleached. 



91 



Almost entirely 

 bleached. 



Commencing 

 to bleach. 



to 



00 



w 

 z. 



M 



« 



« 



< 

 E-> 

 O 



E-" 



f. 



i— i 



14 



months 

 after. 



CC 

 Q 



es 

 CO 



3 



a 



10 



months 



after. 



T3 

 G> 



S m « - - 

 C0 •» « " " 



3 



a 

 P 



2 



months 



after. 



T3 



8 



.a 



5 9 . . * - 



S " ~ * " 



3 

 a 

 P 





i 



o 

 3 

 o 



Litmus 



Methyl Blue ... 

 „ Green 

 „ Orange 



Eosine 



Rosaniline Acetate 



