384 
DE.  A.  MATTHIESSEN  ON  THE  ELECTEIC 
Potassium 
Lithium 
Iron  . 
Palladium  . 
Tin  . . . 
Platinum  . 
Lead . . . 
Argentine  . 
Strontium 
Antimony  . 
Quicksilver . 
Bismuth.  . 
Conduct- 
ing power. 
Temperature. 
O 
c. 
Mean  of 
conducting  power. 
20-85 
19-00 
14-64  at  21-2' 
14-46  at  21-2 
14-68  at  19-0  - . 
14-33  at  19-0 
14-10  at  21-4 
12-60  at  17-01 
Jl2-63  at  17-2 1 . 
[l2-69  atl7-4j 
ril-39  at  21-01 
J 11-40  at  21-0 1 . 
[ll-56  at21-oJ 
riO-SS  at  20-41 
J 10-46  at  20-81  . 
[l0-57  at21-oJ 
r 7-84  at  17-21 
} 7-73  at  17-2 1 . 
[ 7-74  at  I7-4J 
r 7-73  at  20-01 
} 7-62  at  17-4 1 . 
[ 7-67  at  18-83 
r 4-28  at  18-71 
J 4-30  at  18-71 
[ 4-29  at  I8-7J 
r 1-64  at  22-81 
J 1-63  at  22-81 
[ 1-62  at  22-8] 
■ 1-18  at  14-5' 
1-19  at  14-8 
1-21  at  12-0  ‘ 
. 1-19  at  14-0. 
14-44 
12-64 
11-45 
10-53 
7-77 
7-67 
6-71 
4-29 
1-63 
1-19 
Alloy  of  1 
' 0-880 
at 
24-0' 
Bismuth  32  parts  < 
0-883 
at 
24-0 
Antimony  1 part  ( 
0-889 
at 
24-0 
Alloy  of  1 
' 0-516 
at 
22-0 
Bismuth  12  parts  < 
0-536 
at 
22-0 
Tin  1 part  . . . ( 
10 
0 
0 
at 
22-0 
0-884 
0-519 
Temperature. 
oC. 
20-4 
20-0 
20-4 
17-2 
21-0 
20-7 
17- 3 
18- 7 
20-0 
18-7 
22-8 
13-8 
24-0 
22-0 
