324 Journal of the Asiatic Society of Bengal. [N.S., XV, 
t was found that, in absence vt air, exposure to sunlight 
reduced the smell somewhat. There was an improvement in 
colour which was more marked site the second toh es There 
was a slight further bleaching observed up to the sixth week. 
Errect oF AIR AND SUNLIGHT COMBINED. 
series of experiments was Sewer bs study the com- 
bined effect of both air and sunlight on the 
‘ig. 1 gives the diagrammatic seaLol: of the apparatus. 
employed. 
A. Dropping funnel. 
il. 
Dr ek th 
C. Cork. 
D. Adapter. 
E. Glass tube about six feet long and of 2 inch inter- 
nal diameter. 
F. Glass shad 
G. Glass basin. 
a. Cotton-wool plug to stop the formation of spher- 
oidal oil-globules 
b. 
Cotton-wool plug to keep off hac particles without. 
obstructing the inflow of a 
oil was contained in the oe funnel A and b 
adjusting the stop-cock was allowed to glide slowly along the 
