660 
Au, of Comm. N°. 99, which was known to contain 0,03 °/, impurity. 
The thickness of the plate was 0,101 mm. 
TABLE IX. 
Harr effect for Gold Aur | 
T = 290° K | 
TE a 
T =90°K. | FAT K | 
| RH —Rx 104, H | RH |—Rx104 
| 
|| | 5 | | 
| | | | ; 3 
7130 | ROZ 12e ne S0 
5.82 | 7.53 || 4940 | 3.75 | 7.59 
| 9500 | 6.75 | 7.11 || 9500 | 7.24 | 7.62 || 9065 | 6.95 | 7.67 
11080 8.11 | 7.32 11080 | 8.53, 7.70 10270) 7.72 71.59 
12200 | 8.85 | 7.25 | 12200 | 9.24| 7.58 || 
| t] 
Wo990 = 22x15-60 | Woo = 54,6x10—-6 0 
§ 5. Haru effect for Silver. The plate Ag,7 was found to be of 
practically the same purity as that of the wire Ag, of Comm. N°. 92 
which contained 0,18°/, impurity. The thickness of the plate was 
0,096 mm. 
TABLE X. | 
HALL effect for Silver Ag, r 
T = 290° K. | T= 90° K. 
H RH I-rx10!| RH «| —Rx104 
| 4940 | 3.97) 8.04 || 4.10 8.30 
| 7260 | 5.81| 8.01 || 5.92 8.15 
| 9065 | 7.23| 7.98 || 7.45 8.22 
OZR Ee 8.16 
| 
Woge = 37x 10-9 
§ 6. Hat effect for electrolytic Copper. The thickness of the 
plate Cu, was 0.057 mm. 
