TEMPEEATUEE ON THE ELECTEIC CONDUCTING-POWEE OE ALLOTS. 171 
Table IV. (continued). 
Table IV. (continued). 
fPb Ag, containing 46-9C 
Length 267 millims. ; 
Conducting-power found before 
heating the wire 
Ditto, after being kept at 100° 
for 1 day 
Ditto, for 2 days 
I volumes per cent, of lead, 
diameter 0-584 millim. 
0 Reduced to 0°. 
13 009 at 14-9 13 391 
13 072 at 15 9 13 482 
13 087 at 15 1 13-477 
T. 
C onducting-power. 
Difference. 
Observed. 
Calculated. 
14-10 
18099 
13100 
-0001 
24-70 
12-841 
12-837 
+0-004 
39-88 
12-478 
12-477 
+0001 
54-61 
12141 
12-146 
-0-005 
7005 
11-818 
11-818 
0000 
83-88 
11-546 
11-542 
+0-004 
99-37 
11-250 
11-251 
-0-001 
X = 13-464 - 0-26424*;+ 0 000041 74*! 2 . 
3. 
Pb Ag 2 , containing 30-64 volumes per cent, of lead. 
Length 373 millims. ; diameter 0-634 millim. 
Conducting-power 
found after 
Reduced to 
heating the wire for 2 days. . . 
21-186 at 16-1 
21-874 
Ditto, for 3 days . . 
21-160 at 16-5 
21-863 
Conducting-power. 
T. 
Difference. 
Observed. 
Calculated. 
15-82 
2M91 
21190 
+0-001 
24-96 
20 811 
20-813 
-0-002 
39-48 
20-236 
20-232 
+0004 
5417 
19-669 
19-669 
0000 
69-78 
19089 
19-098 
-0-009 
84-27 
18-602 
18-593 
+0-009 
10000 
18-069 
18071 
-0002 
X=21-866-0-043636*;+0-00005636*‘ :i . 
4. 
•j*Sn 12 Au, containing 90-32 volumes per cent, of tin. 
Conducting-power found before 0 Reduced to 0°. 
heating the wire 7‘9495 at 11-8 8-2418 
Ditto, after being kept at 100° 
for 1 day 79479 at 13-0 8-2702 
T. 
Conducting-power. 
14-0 
7-9224 
57-0 
6-9935 
1000 
6-2676 
X =8-2687 - 0 02550 D+000005490*' 2 . 
fSn 5 Au, containing 79 - 5 
Length 222 millims. ; 
Conducting-power found before 
heating the wire 
Ditto, after being kept at 100° 
for 1 day 
Ditto, for 2 days 
4 volumes per cent, of tin. 
diameter 0-599 millim. 
Reduced to 0°. 
4 8386 at 14-3 5-0427 
4-8432 at 14-6 5-0518 
4-8741 at 13 0 5 0608 
T. 
Conducting-power. 
14-0 
4-8593 
570 
4-3212 
1000 
3-9009 
X=5-0599 — 0014776i4-0-00003186*; 2 . 
6 . 
Tin-copper alloy, containing 93-57 volumes per cent, 
of tin. 
Length 274-5 millims ; diameter 0-667 millim. 
Conducting-power found before 
Reduced to 0 C 
heating the wire 
11-264 at 181 
12034 
Ditto, after being kept at 100° 
for 1 day 
11-498 at 16-9 
12-231 
Ditto, for 2 days 
11-445 at 18-3 
12-237 
Ditto, for 3 days 
11-549 at 16-3 
12-259 
Ditto, for 4 days 
11-571 at 16 3 
12-282 
Ditto, for 5 days 
11-558 at 171 
12-304 
T. 
Conducting-power. 
Difference. 
Observed. 
Calculated. 
15-58 
11-622 
11-618 
+0004 
24-70 
11-242 
11 242 
0-000 
38-91 
10-679 
10-688 
-0-009 
54 96 
10109 
10-111 
-0002 
70-29 
9-615 
9-609 
+0006 
85-68 
9-160 
9152 
-1-0-008 
99-40 
8-777 
8-784 
-0-007 
X = 12-299 - 0-045304*;+ 000009997* 12 . 
7- 
Tin-copper alloy, containing 83-60 volumes per cent, 
of tin. 
Length 201 millims. ; 
Conducting-power found before 
heating the wire 
Ditto, after being kept at 100° 
for 1 day 
Ditto, for 2 days 
Ditto, for 3 days 
Ditto, for 4 days 
diameter 0-581 millim. 
12-119 at 15-7 
12-264 at 15-3 
12-389 at 15-3 
12-420 at 14-7 
12-384 at 15-7 
Reduced to 0°. 
12-764 
12- 900 
13- 031 
13-038 
13 043 
T. 
Conducting-power. 
Difference. 
Observed 
Calculated. 
8-27 
12-688 
12-689 
-0-001 
25-28 
12-009 
12-002 
+0-007 
39-43 
11-460 
11-470 
-0010 
54-31 
10-943 
10-949 
-0006 
70-13 
10-444 
10-437 
+0-007 
84-18 
10 032 
10-022 
+0-010 
99-28 
9-607 
9614 
-0007 
X = 13C42-0043382i , +0-00008924+. 
