MESSRS. T. E. THORPE AND J. W. RODGER ON THE RELATIONS 
492 
V = 1 + •03128402^ + -05189062^2 + *087848^3 
(Thorpe, loc. cit.) for the thermal expansion, were used. 
Taking 
— -005686 
h = 7°-06 
we obtain the formula 
7^3 = -003476 
^3 = 54°-54 
22-247 
~ (132-02 + 
rj., (calculated) = -004446 
t .2 (from curve) = 29°’06, 
which gives values in close agreement with those obtained by observation. 
Mean temp. 
Difference. 
Observed (mean). 
Calculated. 
0 
7-OG 
-005686 
•005686 
•000000 
11-24 
-00.5413 
•005411 
- -000002 
l.r34 
-00.5156 
•005161 
+ -000005 
i 19-31 
-004934 
•004936 
+ -000002 
! 23-22 
-004736 
•004729 
- -000007 
27-8.5 
-004506 
•004502 
- -000004 
31-55 
-004337 
•004333 
- -000004 
35-61 
-004160 
•004158 
- -000002 
40-18 
-003976 
•00397.5 
- -000001 
43-74 
-003836 
-003841 
+ -000005 
47-95 
-003695 
•003693 
- -000002 
54-54 
-00.3476 
•003476 
•000000 
Chloroform. CHCI 3 . 
We are indebted to Mr. David Howard for the sample of pure chloroform which 
has served or our experiments. It was placed over phosphoric oxide for some hours 
and distilled. It boiled completely between 61°-43 and 61°-58. Bar. 764-0 millims. 
Corrected and reduced b.p. = 61°-34. 
Vapour density : 
Found, 59-40. Calculated, 59-55. 
Observations for viscosity :— 
