H. A. Rowland—Studies on Magnetic Distribution. 
This would give data for determining R’ in absolute measure at 
every point of the ro 
o complete the argument that the variation of r? is in great 
measure due to that 
ona bar to vary. Tables V, VI, and VIL are from a 
TaBLE V. Magnetizing current ‘176. 
H, I have caused the magnetizing-force 
bar 9 
Q’e. Q’e. Q’. : Q' 
L. Ob- Cor- Cor- Foe. ae a R’ Calcu- 
served. | rected. | rected. | BR” |r?” R lated. 
0 27 0 
1 69 2°40 
2 12°7 Bes Ce oe Sune 7-32 
3 18-2 oe —- a? gage TAT bE 
4 24°4 sone a a ae | 
5 32°4 31°7 | 2205 Sin <2 eel 
6 31°5 320 | 1885 0196 52-4 | 32°38 
7 28-2 28-2 | 160-3 0212 47-2 2 
8 249 24-7 | 135°6 | °0218 45°9 ~~ 
9 214 | 21-7 | 113-9 | 0236 | 42-4 I 
10 18°6 19°0 94:9 | -0252 39°7 eb 
ll 16°8 16°4 785 | 0298 36-0 rat 
12 14-2 14°2 64:3 | °0311 32°2 2 
13 12-0 12-0 52:3 | -0367 27-2 2 
14 10°0 42°3 0404 24°8 i 
15 17-7 8-2 34:1 0440 22°7 1 
16 6°6 275 | °0445 22°5 i 
17 11°6 51 22-4 | ‘0570 175 3 
18 : 22-4 Ss 
End. 22°4 : 
TaBLe VI. Magnetizing current °31. 
ce Q’. Q" r & 
L. Ob- Cor- Cor- r, oll Caleu- 
served. | rected. | rected. . lated. 
0 16.3 0 
2 22°0 17°3 
3 32°4 see panes fee ey 22°3 
4 43°8 Jet Se isve ee 32°28 
5 559 a es ie se 43°34 
6 552 cco See La ae 55°90 
7 46°8 551 | 3368 
8 4s-1 | 998-7 | 0204 | 490 | & 
9 $/ 81:3 3 | 2464 | ‘0201 49°7 i 
0 374 | 209-0 | 0202 49°5 = 
1 61:8 33-0 | 1760 | 02 5 = 
2 29:0 | 147-0 | -0243 41°2 ran 
[3 46°4 253 121-7 | 0262 y 3 
4 21 99°8 “0300 33°3 T 
15 35°4 18°7 8l'l1 | 0352 28°4 $ 
16 15°6 65°5 | °0405 24°7 | 
aT 41 990 12°7 52°38 | “0479 9 = 
ce! 9°8 z 
End. 43°0 ~ 
Am. Jour. Sc.—Tuirp Serres, Vou, X, No. 59.—Dzc., 1875. 
30 
