422 H. A. Rowland—Magnetic Permeability, and the 
TABLE IV.—Norway Iron, Magnetic. 
M Q. k T M. Q. L. T, 
“1344 865° | 512° 2-290 | 105900: | 3680° | 35240: 
2673 2550° 759° 1892- 4°393 134100° | 2429- 54970° 
“S161 13000° | 2005: 5857° 5910 142400° | 1917- 62810" 
"5572 15310° | 2187: 8110: 7874 149100° | 1507- 68490" 
6725 30140° | 3567- 8921- 13% 156800- 906° | 77060: 
"9305 53800° | 4602° | 13970- 26°84 165800° | 480° | 84710: 
1362 T7700" | 4545- | 21630- 36°86 168500- | 364: | 87860 
1-788 93000- | 4140: | 28200: L 
TABLE V.—Cast Nickel, Normal. 
M Sim tt | i 1G ee 
1°433 852: 47-4 13°43 | 27100° | 160°6 | 11260° 
2:904 2377° 65:1 16°53 | 31050° | 149°5 | 13530- 
3°527 3685- 85:1 21°02 | 34950- | 132°3 | 16480° 
5-555 10080° | 1444 32°17 | 41980° | 103°8 | 22300° 
6°783 13680- | 160-5 | 5120° || 33°92 | 42650° | 1000 | 23360 
7401 15270- | 1642 | 5614: || 60°91 | 50860° | 66:4 | 29540 
9:23 19600° | 168-2 | 7644: 
11°78 24720° | 167-0 | 9902- 
82°36 | 53650° | 51°8 | 33460° 
105°2 | 55230-° | 41°8 | 35120° 
TABLE VI.—-Stubs’ Steel Wire, Normal. 
M. Q. be T. | M. Q. fe T. 
1673 159 75:9 13°65 54300- 316°6 20900" 
6237 678- | 865 598: || 19°35 | 77770- | 319°9 | 29480" 
1:084 1197: 87:9 1101- 2743 | 100800- 292°6 38590" 
27043 2448- 95°4 2257: 33°39 | 111300- 965°4 | 451 10° 
2-714 3446- | 1010 | 3095: || 35:58 | 115000- | 2569 | 45950" 
4°22] 6278° | 118-4 45° 38°64 | 119400- 246°0 48060 
51 
| 10°26 33700° | 261°5 16170° — 
eae . : Ns be : 
obtaining curves showing the variation of the total, tom 
to represent this curve for Q, but it fails entirely for weak ge 
netizing forces even when applied to his own experiments, 
when applied to mine it widely diverges from experiment. 
