COI^DUCTING- POWEE OE ALLOTS. 
165 
Although the values found for some of the alloys of cadmium-zinc and lead-cadmium 
do not agree exactly with their calculated conducting powers, yet we see from their 
ciu’ves which are drawn on Plate V.*, that they do not vary much from straight lines, 
and we shall see further on that we cannot group them with either of the other classes. 
3. On the Conducting Power of Alloys made from the Metals belonging to Class A. 
with those of Class B. 
The values found for the alloys of this class are given in Table IV,, together with 
their calculated conducting powers. 
Table IV. 
Bismuth-Lead Series. 
Alloy. 
Volume per cent. 
Mean of 
Calculated con- 
ducting power from 1 
the Tolume. j 
Conducting power. 
Temperature. 
Pb 
Bi 
99*73 
0*904 
25*8 
i 
! 
1*208 
Bi,,,; Pb 
99*66 
0*610 
23*8 
1*213 
BiJ^ Pb 
99*57 
0*428 
24*8 
1*218 i 
BL, Pb 
99*30 
0*310 
25*6 
1*223 
Bi^ Pb 
99*39 
0*291 
25*0 
1*23 
Bi^ Pb 
99*11 
0*270 
21*3 
1*25 I 
Bi.^ Pb 
98*59 
0*261 
22*9 
1*28 i 
Bi24 Pb 
98*24 
0 * 2.57 
24*1 
1*31 1 
Bi.,n Pb 
97*89 
0*271 
24*0 
1*33 
Bi,, Pb 
^7*01 
0*289 
23*9 
1*39 1 
Bij2 Pb 
96*54 
0*303 
23*5 
1*42 
Bi.ft Pb 
95*87 
0*313 
21*3 
1*46 ' 
Big Pb 
94*89 
0*357 
22*6 
1*53 ! 
Big Pb 
93*31 
0*405 
21*5 
1*63 
Bi” Pb 
90*28 
0*521 
20^0 
1*83 
BC Pb 
82*29 
0*859 
19*9 
2*35 : 
Bi Pb 
69*91 
1*41 
19*2 
3*17 
Bi Pb2 
53*74 
2*09 
22*2 
4*23 ' 
Bi Pb^ 
36*74 
2*87 
22*5 
5*35 i 
Bi Pb’ 
27*91 
3*47 
21*3 
5*93 
Bi Pbg 
22*50 
4*02 
21*7 
6*29 
Bi Pbift 
18*85 
4*35 
20*9 
6*53 
Bi Pb,, 
8*83 
5*55 
24*4 
7-19 
Bi Pbiog 
2*27 
7*03 
24*0 
7*62 
Antimony-Lead Series, 
SbgPb 
Sb 
80*00 
2*86 
24*2 
4*99 
Sb Pb 
66*67 
3*31 
26*3 
5*45 
Sb Pb2 
50*00 
3*93 
23*4 
6*03 
Sb Pb^ 
33*33 
4*72 
24*1 
6*61 
Sb Pbg 
25*00 
5*52 
26*1 
6*90 
Sb Pbjo 
16*66 
6*03 
25*4 
7*19 
Sb Pb,o 
9*09 
6*64 
25*6 
7*45 
Sb Pbso 
3*85 
7*09 
23*7 
7*64 
* The dots on the lines indicate the points at which the experiments were tried. 
