i6 Fowler, Chemical Action of Tropical Sunlight. 



afforded a layer of absorbing solution of approximately 

 one millimetre in thickness. The volumes of mixture 

 taken were measured and results were calculated on the 

 usual basis. 



The following results may be quoted : — 



These results confirm Dr. Bailey's observations, even 

 with stronger sunlight and very slight depth of absorbing 

 solution. The differences between the absorbents are 

 accentuated with the stronger sunlight, the absorbing 



