TEMPERATURE ON THE ELECTRIC CONDUCTING-POWER OE ALLOYS. 195 
Table XXIV. 
1. 
Platinum, commercial (hard drawn). 
Length 371 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 
diameter 0-614 millim. 
11-209 at 16-6 
11-212 at 15 6 
11 -174 at 16-7 
11-159 at 16-8 
Reduced to 0°. 
11-720 
11-692 
11-687 
11 647 
T. 
Conducting-power. 
9-0 
11-427 
54-5 
10-172 
100-0 
9-197 
X = 1 1-708 - 0-031 875if+0-00006762i! 2 . 
2 . 
Platinum, commercial (hard drawn). 
Length 209 millims. ; 
Conducting-power found before 
heating the wire 
Ditto, after being kept at 100° 
for 1 day 
Ditto, for 2 days 
diameter 0-243 millirn. 
11-039 at 17-0 
11-038 at 17-3 
11-022 at 17-6 
Reduced to 0°. 
11-527 
11-535 
11527 
T. 
Conducting-power. 
lf-0 
11-239 
55-0 
, 10 072 
100-0 
9-141 
X = 1 1 -530 - 0-02972 1 0-00005827^. 
Palladium, commercial (hard drawn). 
Length 167"5 millims.; diameter 0‘379 millirn. 
Conducting-power found before 
heating the wire 
Ditto, after being kept at 100° 
for 1 day 
Ditto, for 2 days 
„ Reduced to 0°. 
13-230 at 18-4 13-991 
13-295 at 17-5 14 022 
13-322 at 16-9 14025 
T. 
Conducting-power. 
9-0 
13-645 
54-5 
11-954 
1000 
10-658 
X = 14-026 - 0 043225;+0 00009540t 2 . 
4. 
Palladium, commercial (hard drawn). 
Length 218 millims. ; diameter 0-409 millirn. 
Conducting-power found before „ Reduced to 0°. 
heating the wire 12-091 at 1 7*2 12-678 
Ditto, after being kept at 100° 
for 1 day 12087 at 176 12-684 
T. 
Conducting-power. 
10-0 
12357 
55-0 
10-978 
100-0 
9-818 
X = 1 2-704 - 0-035443^+0-00007383i! 2 . 
Table XXIV. (continued). 
5. 
Magnesium, commercial. 
Length 717 millims. ; diameter 0-497 milli rn . 
T. 
Conducting-power. 
150 
34-912 
57-5 
30-312 
1000 
26-922 
X=36-825 - 0 13252zf-|-0-0003349^ 2 . 
6 . 
Magnesiun (from Mr. E. Sonstadt). 
Length 628 millims. ; diameter 0-436 millirn. 
Conducting-power found before 
heating the wire 
Ditto, after being kept at 100° 
for 1 day 
Ditto, for 2 days 
38-062 at l°l-0 
37-963 at 12-2 
37-918 at 12-6 
Reduced to 0°. 
39-662 
39-735 
39-747 
T. 
j Conducting-power. 
13-0 
37-881 
565 
32-442 
1000 
28-347 
X=39-765-0 1497n+0-000335l!; 2 . 
7. 
Aluminium, commercial (hard drawn). 
Length 1351 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 
diameter 0-5 1 1 millirn. 
0 Reduoed to 0°. 
50-804 at 17-2 54-073 
51 079 at 16-4 54-210 
51 146 at 15 7 54 145 
51 035 at 16-4 54-163 
T. 
Conducting-power. 
120 
51910 
560 
44-542 
1000 
38-938 
X = 54-225 - 0- 1 9843^-H 0-0004556< 2 . 
8 . 
Aluminium, alloyed with 0*5 per cent, nickel 
(hard drawn). 
Length 745 millims. ; 
Conducting-power found before 
heating the wire 
Ditto, after being kept at 100° 
for 1 day 
Ditto, for 2 days 
diameter 0-415 millirn, 
„ Reduced to 0°. 
44-597 at 15-9 46-950 
44- 786 at 15-2 47-043 
45- 044 at 13-6 47-071 
T. 
Conducting-power. 
14-0 
44-986 
570 
39-325 
100-0 
34-785 
X = 47-07 1 —015321 <+0-0003037i! 2 . 
