6i8 
PHYSICS: E. H. HALL 
Proc. N. a. S. 
Tabi,e 8: Copper 
ko = 650 X 10-6; k,,, = 455 X 10-6; 0o = 0.920; ^loo = 0.908; (^o dm) = 1.01 
o- = -0.966 Tergs/deg. C. 
liq = 1.49 and 5 = 9 and X'o = 3.24 R, Ci = -12.54 X 10-^ and C ,= 0.0372 
(if) 
7 
5. 
So 
6lOO 
©. 
(^a)o 
X 106 
(^a)ioo 
X 106 
00 
^100 
^0 
0.036 
6.4% 
0.003 
0.214 
0.292 
-2880 
-2780 
626 
439 
0.918 
0.850 
1.08 
Table 9: Magnesium 
= 240 X 10-6; ^100 = ?; mean d between 0° and 100° - 0.376 
0-= -0.008 Tergs./deg. C. 
If g = 1.499 and s = 6.5 and X'o = 460 R, d = -14.4 X 10 -« and C = 0.066 
0.C66 
12% 
0.039 
0.192 
0.248 
-3700 
-3700 
224 
? [ 0.379 
• Table 10: Silver 
?o = 670 X 10-6; ^100 = 476 X 10-6; do = 1.01; ^loo = 0.99; (^o dm) = 1.02 
a = -0.864 Tergs/deg. C. 
If g = 1.49 and ^ = 11.5 and X'o = 30 R, G = -8.8 X 10-6 and C = 0.0240 
0.023 5.5% 0.003 0.272 | 0.370 -2380 -2280 655 466 \ 1.01 0.94 1.08 
i 
Table 11: Tungsten 
ko = 140 X 10-6; hoo = 106 X 10-6; dis = 0.35 ;i ^loo = ? 
(T = -3.41 T ergs/deg. C. 
If = 1.49 and 5 = 9 and X'o = 18.4 R, Ci = -44.4 X 10-6 and C = 0.0696 
0.065 3.2% 0.002 0.213 0.290 -5380 -5030 130 99 0.355 0.344 1.03 
1 Value found by Coolidge. 
Third Group: Metals for whicft Ki > 0 and K2 > 0. > 
Table 12: Iron 
^o = 78 X 10-6; ^100 = 48 X 10-6; do = 0.163; ^100 = 0.151; (do ^ dm) = 1.08 
a = (1.78 T + 6.04 tT) ergs/deg. C. 
If g = 1.205 and i- 
11 and X'r 
= 117i?. C2 = 26.9 X 10-8, Ci 
C = 0.0364 
14.8 X 10 -» 
0.041 1.2% 0.01 0.268 0.363 -3350 -3740 
75.2 46.2 
0.161 0.149 1.08 
Table 13: Thallium 
y^o 57 X 10-6; ;fe,oo -43.9 X 10-6; 0o = 0.090(?) ;i ^loo = 0.096(?) ;i (^o 9m) = 0.94(?) 
a = (0.268 T X 0.00336 tT) ergs/deg. C. 
If g = 1 .48 and 5 = 7 and X'o = 117 R, C2 = 2.80 X 10-^ Ci = 3.56 X 12-6, c = 0.0676 
0.068 
1.9% 
0.01 0.174 
0.236 
4060 
■4100 
53.1 
41.0 
0.089 
0.094 
0.95 
^ See footnote under table 1, cobalt 
