170 
DRS. A. MATTHIESSEN AND C. VOGT ON THE INFLUENCE OF 
Table III. (continued). 
3. 
fSn 2 Zn, containing 77*71 volumes per cent, of tin. 
Length 276 - 5 millims. ; diameter 0-555 millim. 
Conducting-power found before 0 Eeduced to 0°. 
heating the wire 16-289 at 10-9 16-991 
Ditto, after being kept at 100° 
for 1 day 15-862 at 15-1 16-815 
Ditto, for 2 days 16-201 at 10-9 16-899 
T. 
Conducting-power. 
Difference. 
Observed. 
Calculated. 
11-08 
16-188 
16-168 
4-0-020 
24-42 
15-339 
15-363 
-0024 
39-27 
14-516 
14-529 
-0013 
54-23 
13-759 
13-754 
4-0005 
69-40 
13-055 
13 037 
4-0-018 
84-11 
12-414 
12-404 
4-0-010 
96-65 
11-899 
11-915 
-0016 
X = 16-876 — 0-065544^4-00001471^ 2 . 
4. 
-j-Pb Sn, containing 53*41 volumes per cent, of lead. 
Length 359 millims. ; diameter 0-844 millim.’*' 
T. 
Conducting-power. 
Difference. 
Observed. 
Calculated. 
9-12 
10-073 
10071 
4-0-002 
24-45 
9-510 
9-511 
-0-001 
39-73 
8-992 
8-995 
-0-003 
55-26 
8-509 
8-512 
-0-003 
69-61 
8-108 
8-103 
4-0-005 
84-36 
7-724 
7-721 
4-0-003 
98-73 
7-382 
7-385 
-0-003 
X = 10-423 - 0-039433;+0-00008775i; 2 . 
Table III. (continued). 
6 . 
•fSn Cd 4 , containing 23*50 volumes per cent, of tin. 
Length 512-5 millims. ; diameter 0-670 millim. 
T. 
Conducting-power. 
Difference. 
Observed. 
Calculated. 
12-57 
21-096 
21-086 
4-0-010 
25-55 
20-068 
20-084 
-0016 
4020 
19-033 
19037 
-0-004 
54-30 
18-127 
18-113 
4-0-014 
69-33 
17-219 
17*220 
-0-001 
80-96 
16-589 
16-594 
-0-005 
91-30 
16-086 
16*084 
4-0-002 
X=22-123 - 0-085 1 59^+0-0002082i; 2 . 
7. 
-j*Cd Pb 6 , containing 10*57 vols. per cent, of cadmium. 
Length 224 millims. ; diameter 0-644 millim. 
Conducting-power found before 0 Eeduced to 0°. 
heating the wire 9-068 at 6-1 9-264 
Ditto, after being kept at 100° 
for 1 day 9-490 at 2-5 9-57 4 
Ditto, for 2 days 9-039 at 7*7 9-285 
Ditto, for 3 days 8 - 964 at 10-1 9‘285 
T. 
• Conducting-power. 
Difference. 
Observed. 
Calculated. 
11-50 
8-922 
8-922 
0-000 
25*03 
8-516 
8-516 
0-000 
40-35 
8-083 
8-085 
-0 002 
54-75 
7-710 
7-710 
0000 
7000 
7-342 
7-342 
0-000 
85-55 
7-001 
7000 
4-0-001 
98-57 
6-737 
6-738 
-0-001 
X=9-287 - 0-032501 !f+0-00006743# 2 . 
Table IY. 
5. 
-j-Zn Cd 2 , containing 26*06 volumes per cent, of zinc. 
Length 577 millims. ; diameter 0 629 millim. 
Conducting-power found before „ Eeduced to 0°. 
heating the wire 24-774 at 11-1 25-834 
Ditto, after being kept at 100° 
for 1 day 25-101 at 10*1 26077 
Ditto, for 2 days • 24-916 at 10 5 25-924 
fPb 20 Ag, containing 94*64 volumes per cent, of lead. 
Length 372 millims. ; diameter 0-704 millim. 
Conducting-power found before 0 Eeduced to 0°. 
heating the wire 8-508 at 13'7 8 938 
Ditto, after being kept at 1 00° 
for 1 day 8-578 at 15-2 9-060 
Ditto, for 2 days 8-640 at 14-3 9-096 
Ditto, for 3 days 8-731 at 15-7 9'238 
Ditto, for 4 days 8-760 at 14-7 9-236 
T. 
Conducting-power. 
Difference. 
Observed. 
Calculated. 
11-60 
24-817 
24-796 
4-0-021 
24-28 
23-600 
23-647 
-0-047 
39-86 
22-322 
22-324 
-0002 
54-00 
21-232 
21-215 
4-0-017 
68-90 
20-164 
20133 
+0-031 
83-41 
19-167 
19168 
-0001 
98-23 
18-255 
18-272 
-0017 
X=25-906— 0-098065;; 4-0-0002072^. 
T. 
Conducting-power. 
Difference. 
Observed. 
Calculated. 
10-47 
8-900 
8-901 
-0-001 
24-93 
8-459 
8-455 
+0-004 
39-70 
8026 
8-031 
-0-005 
55-03 
7-625 
7-625 
0-000 
70-26 
7-256 
7-256 
0000 
85-16 
6-933 
6-927 
+0-006 
98-47 
6-658 
6-662 
-0004 
X=9-244-0-033467^4-0-00007360^ 2 . 
* The reason why here and in some cases in the following Tables no determinations of the effect of heating 
the wire on its conducting-power are given, is that the wire unfortunately, from some cause or another, became 
unsoldered after it had been heated to 100° for one or more days. 
