524 
MESSRS. T. E. THORPE AND J. W. RODGER ON THE RELATIONS 
Left iimb. 
Riglit limb. 
Temp. 
Press. 
Corr. 
Temp. 
Press. 
Corr. 
V- 
0 
0-40 
102-43 
-000029 
•008690 
0 
0-43 
102-.33 
•000030 
•008697 
11-46 
102-46 
-000034 
•007436 
11-37 
102-34 
•000034 
•007452 
21-70 
102-55 
-000039 
•006528 
21-63 
102-46 
•0000.38 
•006.543 
32-86 
102-65 
-000043 
•005722 
32-95 
102-54 
•000043 
•005725 
47-17 
102-55 
-000050 
•004904 
47-05 
102-51 
•000050 
•004919 
60-52 
102-42 
-000056 
•004297 
60-51 
102-.35 
•000056 
•004305 
73-89 
102-97 
-000062 
•003801 
73-73 
102-88 
•000062 
•003813 
83-60 
10-2-99 
-000067 
•003496 
83-65 
102-91 
•000067 
•003490 
95-60 
102-81 
-000073 
-003162 
95-60 
102-74 
•000072 
•003161 
107-68 
102-70 
-000078 
•002873 
108-26 
102-57 
•000078 
•002864 
119-14 
102-73 
-000084 
•002627 
119-24 
102-69 
•000084 
•002628 
131-40 
102-78 
•000090 
•002405 
131-41 
102-71 
•000090 
•002409 
In reducing the observations, we have employed Weger’s expression for the 
thermal expansion— 
V = 1 + - 0386172 ^ + - -Ogissie^^ 
and the relative density d {0°l0°) = 0'8832 (‘ Annalen,’ 221, 67). 
Taking 
T^j = -008693 7^3 = -002407 % (calculated) = -004574 
= 0°-4l ig = 131°-4 i 3 (from curve) = 54°-10, 
we obtain the formula, 
41-215 
“ ( 121-68 + ’ 
by means of which the calculated values given below are obtained. 
Mean temp. 
V- 
Difference. 
Observed (mean). 
Calculated. 
0 
0-41 
•00869 
•00869 
•00000 
11-41 
•00744 
•00750 
+ -00006 
21-66 
•00654 
■00655 
+ -00001 
32-90 
•00572 
•00576 
-4- -00004 
47-11 
•00491 
•00491 
•00000 
60-51 
•00430 
■00427 
- -00003 
73-81 
•00381 
•00379 
- -00002 
83-62 
•00349 
•00348 
- -00001 
95-60 
•00316 
•00315 
- -00001 
107-97 
•00287 
•00286 
- -00001 
119-19 
•00263 
•00263 
•00000 
131-40 
•00241 
•00241 
•00000 
