478 
MESSRS. T. E. THORPE AND J. W. RODGER ON THE RELATIONS 
Left limb. 
Temp. 
Pre.ss. 
Corr. 
0 
0-30 
101-12 
-000068 
•006162 
6-60 
101-18 
-000073 
•005734 
12-42 
101-24 
-000077 
•005367 
18-36 
101-26 
•000081 
•005040 
24-72 
101-50 
-000086 
•004721 
30-87 
101-66 
•000091 
•004444 
37-22 
101-77 
•000095 
•004207 
42-87 
101-80 
•000099 
•003996 
47-88 
100-61 
•000102 
•003803 
54-46 
100-.36 
•000107 
•003589 
61-12 
100-16 
•000111 
•003403 
68-67 
99-97 
•000117 
•003192 
Right limb. 
Temp. 
Press. 
Corr. 
'/• 
0-.30 
100-93 
•000068 
•006174 
6-69 
101-01 
•000073 
•005727 
12-42 
101-05 
•000077 
•005376 
18-33 
101-11 
•000081 
•005054 
24-75 
101-34 
•000086 
•004733 
30-81 
101-50 
•000091 
•004453 
37-22 
101-61 
•000095 
•004190 
42-81 
101-64 
•000099 
•003980 
47-85 
100-49 
•000102 
•00.3807 
54-65 
100-27 
•000107 
•003586 
61-18 
100-03 
•000111 
•003401 
68-67 
99-83 
•000117 
•003195 
In reducing the observations the value d (070°) = 1'4593 for the relative density, 
and the expression 
V = 1 + •0212275^ ~ •0644365^2 + -0725843^3 
for the thermal expansion, were used (Zander, ‘ Annalen,’ 214, 145). 
Taking 
= '006168 7 ) 2 , = ’003193 7 ) 2 , (calculated) = '004438 
= 0°'30 1-2 = 68°’67 ^2 (fi’oiR curve) = 31°’20, 
we obtain the formula 
30-360 
~ (145-03 + ’ 
wliich gives values in good agreement with those obtained by observation. 
Mean temp. 
'/• 
Difference. 
Observed (mean). 
Calculated. 
0 
0-30 
•006168 
■006168 
•000000 
6-64 
•005730 
•005735 
“h *000005 
12-42 
•005372 
•005380 
+ -000008 
18-34 
•005046 
•005051 
+ -000005 
24-73 
•004727 
•004731 
+ -000004 
30-84 
•004449 
•004454 
+ -000005 
37-22 
•004198 
•004191 
- -000007 
42-84 
•003988 
•003979 
- -000009 
47-86 
■003805 
•003804 
- -000001 
54-55 
•003587 
•003589 
+ -000002 
61-15 
•003402 
•003395 
- -000007 
68-67 
•003193 
•003193 
•000000 
1 
