REFRACTIVE INDEX OF GASES ON TEMPERATURE. 
451 
(•e 
■5 
■A 
V 
■5 
•2 
•1 
■0 
•9 
•6 
7 
•6 
5 
■A 
3 
2 
1 
0 
9 
6 
7 
6 
5 
— 
A 
ni 
IQ 
L 
r\ 
'ef 
ti- 
)Z 
) 
4 
1 
H 
32 
35 
V 
32 
)U 
L. 
V 
\ 
— 
\ 
\ 
% 
3 
2 
'i 
■ 
° 
if 
-1° 
o/ 
1° 
X 
r>o 
-kO 
i 
rvO 
\0 
rvO 
Temperabure Cenbigrade. 
Diagram IV. 
Sulphur Dioxide. 
The gas was obtained from a syphon of the liquefied gas and dried by means of" a 
phosphoric pentoxide bulb inserted in the apparatus. Tlie former process of 
exhausting and refilling at a temperature of about 90° C. was adopted. 
3 M 2 
