454 
MESSRS. T. E. THORPE AND J. W. RODGER OH THE RELATIOXS 
:md the expression 
V = 1 + 0-214683^ + -05509626^2 4 - ■0.6979t^ 
(Thorpe and L. M. Jones, loc. cit.) for the thermal expansion have been used. 
By taking 
7 ^. = *002703 773 = *002102 rj^ (calculated) = *002384 
ty — 0°'71 try = 26°*38 ^2 (frcurve) = 12°*92, 
we obtain 
1-2903 
“ (118-56 -f 0“’ 
which gives values in very close agreement with those obtained by observation. 
Mean temp. 
']■ 
Difference. 
Observed (mean). 
Calculated. 
0-71 
-002703 
-002703 
-000000 
6-40 
-002547 
-002545 
- -000002 
11-91 
-002407 
-002407 
-000000 
1.5-8-2 
-002322 
-002317 
- -000005 
21 03 
-002212 
-002207 
- -000005 
24-27 
-002144 
-002142 
- -000002 
26-38 
-002102 
-002102 
-000000 
Hexane. CH 3 .(CH 3 ),.CH 3 . 
Obtained by Schorlemmer by the action of zinc and dilute hydrochloric acid on 
secondary hexyl iodide from mannite ; it boiled at 7l'’*5 (‘ Phil. Trans.,’ 1872, p. 111 ). 
( Ibservations witli the glischrometer gave 
Left limb. 
Rig 
bt limb. 
Temp. 
Prc.ss. 
Corr. 
Temp. 
Press. 
Corr. 
'/■ 
0 
0-83 
99-95 
-000048 
•003926 
0 
0-77 
99-89 
•000048 
•003935 
9-11 
100-03 
-000052 
•003578 
9-19 
99-95 
•000052 
•003584 
14-72 
100-10 
-000055 
•003379 
14-78 
99-98 
•000055 
•003377 
19-90 
100-18 
•000058 
•003201 
19-97 
100-11 
•000058 
•003203 
25-40 
100-29 
•000060 
•003034 
25-39 
100-25 
•000060 
•003036 
30-20 
100-35 
•000063 
•002899 
30-27 
100-28 
•000063 
•002890 
36-76 
100-39 
•OOOOC6 
•002718 
.36-76 
100-32 
•000066 
•002726 
43-48 
99-98 
•000069 
•002560 
43-46 
99-90 
•000069 
•002553 
47-42 
99-97 
•000071 
•002468 
47-43 
99-00 
•000071 
•002472 
52-90 
100-03 
•000074 
•002349 
52-89 
99-97 
•0(10074 
•002353 
.58-78 
100-06 
•000077 
•002230 
.58-74 
100-00 
•000077 
•002232 
6364 
100-10 
•000079 
•002144 
63-54 
100-03 
•000079 
•002142 
