434 
PROFESSOR C. H. LEES: THERMAL AND ELECTRICAL 
Nickel Rod. 
Lead Rod. 
Ni = -99. 
Pure. 
Density at 21° C. = 8'80. 
Density at 25° C. = 11 "29. 
Temp., 
H. 
scale. 
Resistivity, 
ohm per 
centim. cube. 
Temp., 
H. 
scale. 
Resistivity, 
ohm per 
centim. cube. 
°C. 
+ 17-7 
12-87 x10"« 
°C. 
-70-3 
9 -04 x 10 -ti 
- 178-1 
5-42 
-65-0 
9-29- 
- 178-7 
5-41 
-60-6 
9-48 
- 181-7 
5-29 
-50-0 
9-92 
- 158-6 
5-92 
-41-3 
10-26 
- 147-3 
6-24 
-39-8 
10-36 
- 137-1 
6-61 
-34-5 
10-61 
- 117-5 
7-22 
-28-3 
10-86 
- 107-8 
7-76 
-24-1 
11-02 
- 101-8 
7-94 
+ 19-3 
12-92 
- 94-3 
8-24 
22-1 
13-05 
- 88-4 
8-42 
22-1 
13-07 
- 79-8 
8-74 
1 
Steel Rod. 
C approx. '01. 
Density at 24° C. = 7'84. 
Temp., 
H. 
scale. 
Resistivity, 
ohm per 
centim. cube. 
Temp, 
H. 
scale. 
Resistivity, 
ohm per 
centim. cube. 
°C. 
+ 16-2 
18-33 x 10-o 
°C, 
- 101-9 
11-13 x lO-o 
- 172-7 
7-19 
- 95-8 
11-49 
- 173-9 
7-12 
- 92-7 
11-69 
- 172-2 
7-18 
- 40-8 
14-74 
- 165-2 
7 • 54 
- 39-6 
14-84 
- 154-8 
8-07 
i - 36 • 0 
15-08 
- 146-9 
8 ■ 36 
1+ 21-8 
18-67 
- 111-0 
10-53 
22-1 
18-71 
Temp, 
H. 
scale* 
Resistivity, 
ohm per 
centim. cube. 
Temp, 
H. 
scale. 
Resistivity, 
ohm per 
centim. cube. 
°C. 
+ 17-4 
20-9 x 10-o 
°C. 
-92-2 
12-7 + 10-0 
17-2 
20-9 
-89-2 
12-9 
- 167-2 
6-98 
- 55-4 
15-3 
- 170-0 
6-71 
-53-7 
15-5 
-137-7 
9-01 
-53-0 
15-6 
- 135-7 
9-25 
-51-8 
15-7 
- 132-7 
9-45 
- 14-5 
18-5 
- 129-4 
9-71 
- 14-0 
18-5 
- 96-0 
12-3 
+ 15-7 
20-8 
■ 94-6 
12-6 
Platinoid Rod. 
Approx. '62 Ou, '15 Ni, '22 Zn. 
Density at 22° C. = 8'66. 
Temp, 
H. 
scale. 
Resistivity, 
ohm per 
centim. cube. 
Temp, 
H. 
scale. 
Resistivity, 
ohm per 
. centim. cube. 
° C. 
° C. 
+ 21-2 
34-4 x10-o 
-99-5 
33-1 x10-o 
- 171-0 
32-4 
-96-4 
33-1 
- 173-0 
32-3 
-92-1 
33-3 
- 172-0 
32-4 
-71 -0 
33-3 
- 160-2 
32-3 
-66-6 
33-5 
- 155-0 
32-4 
-35-0 
33 - 7 
- 146-7 
32-6 
-24-4 
33-8 
- 134-6 
32-8 
+ 10-0 
34-3 
- 103-9 
33-0 
10-5 
34-3 
