661 
TABLE XI. 
Har effect for Copper Cu pr 
T= 290° K. T= 90° K. 
Ja 
RH — Rx 104 RH — Rx 167 
1260 3.59 4,95 4.05 5.58 
3065 4.42 | 4.87 5.04 5.56 
10270 || 5.08 4.95 5.66 Mn 
§ 7. Haur effect for Palladium. The thickness of the plate was 
0,100 mm. 
TABLE XII. | 
Hatt effect for palladium Pay: 
T = 290° K. 1 T=90°K. 
H RH |—Rx104 
a RH |\—Rx 104 
8250 5.61 | 6.80 | 8250 #1: 5,85 7.10 
9065 6.04 | 6.66 || 9065 | 6.35 | 7.01 
9760 6.64 | 6.80 9160 | 6.77 | 6.94 
10090 | 7.06 | 7.00 
| W990 = 
126x 10-5 a || Woo = 10x 10-5 0 
§ 8. Summary of the variation of the Harm coefficient for different 
metals. The results obtained in $ 4—7 are collected in Tables XII 
and XIV. For R is taken at each temperature the mean of the 
values ') for the different fields. 
1) It has not been possible to determine the thickness of the plates with a 
greater accuracy than about 3°/), which of course influences the absolute values 
of the Hatt coefficients. This inexactitude, however, makes no difference as to the 
temperature coefficient of the Hatt effect, the measurement of which has been the 
principal object of this investigation. 
