nN a ee ee et ee ———" Pee 
—— i ae 
aeaenel 

1922.) Indian Science Congress. L.S.C. 65 
m the foregoing remarks it is clear that there i is a lot 
nature than quantitative, in support of the radiation hypo- 
thesis which seeks to establish a connection between chemical 
changes (thermal, photochemical and catalytic) and radiation. 
Hence instead of discarding the radiation hypothesis we should 
try to bring fresh evidence both theoretical and experimental, 
in ee of the hypothesis and try to make it more quanti- 
tative 
Absorption of light by some acids and their salt solutions, 
od of clone extinction-coefficient 
in the ultra- bce —By J.C. GuosH. 
‘beac iuasea abs a on coefticien ae the ultra- 
s fou 
change in absorption spectra on salt formation. 
West Coast Sardine Oil.—By P. K. Kurur, J. J. Sup- 
BOROUGH and H. E. War30n. 
This oil (cf. Report. Ind. Sc. Congress 1920) has been examined 
from the point of view of refining, hydrolysing with castor seed lipase, 
atin 
reducing ol cael and sulph g. 
ea refined —— ed its acid value is no 
and can hy nalpaed by castor seed lipase, but requires : relatively 
larger amount of the lipase tt most vegatable oils. omega 
hardened and gives nearly colourless, odourless products. "lt 
—porpergag: but the product is dark colo ured compared with rarkey 
d Oil. 
Preliminary Note on beng Chemistry of neem oil.—By 
paren Se ge R. 
Nee n additio perl rides of fatty acids contains both 
odoriferons ok costiniia sulphur and a cunstituent witha bitter 
"Te is shown that the odour of ra oil can al -— by partial 
bynsoganeteets and that the bitter principle can be removed by 
2 ‘set 
5 
ferably eS extracting the seeds first with eer 1 to remove the bitter 
principle and then with peat to remove il. 
he acids obtained from the oil se removal of unsaponifiable 
matter have been examined. The metho opted was conversion — 
methyl esters and fractional distillation aie reduced press 
far pa ne stants and oleic acids have been identified. 
work is being continu ae 
The investigation es the et 8 ion of neem oil and 2% 
detection and removal of the impurities. —By 
Yagnik and Sh. "ud. ABDULLAH. pane 
nstants of the oil were ; 
as a result 0 of ee ao work, the following conclusions were 
arrived a 
1, The + study of the constants of the ” er 
p us a good deal in the 
investigation of the composition 0: oil. 
