5 .0014558 686.911
6 .0020082 497.96
7 .00324863 307.822
8 .00460101 217.343
9 .00710791 140.689
10 .0105772 94.543
11 .0164462 60.842
12 .0241593 41.392
13 .0418692 23.8839
14 .0718583 13.9163
15 .126788 7.8872
16 .191045 5.2344
17 .301355 3.31835
18 .59157 1.6904
19 1.09596 .912445
20 2.27254 .44003
21 3.25229 .30748
22 5.54843 .18023
23 8.73035 .11454
24 14.5579 .068691
25 21.3142 .046917
26 32.4863 .030782
27 52.0367 .019217
28 88.7724 .011265
29 119.404 .008375
30 164.4762 .0060804

PURE COPPER weighs 555 lbs. per cubic foot. The Resistance of 1 mil.
foot at 60 deg. Fahr. is, according to Dr. Matthiessen, 10.32311 ohms. Upon
these data the above Table has been calculated.