ON THE MAGNETIC QUALITIES OP IRON. 
991 
Ring I,—Fine Iron Wire. 
Cycle (1). 
Cycle (2). 
Cycle (3). 
Cycle (4). 
H. 
1 
B. 
H. 
j 
i 
B. 
1 
H. 
1 
B. 
H. 
B. 
18-23 
10870 
13-01 
8840 
8-80 
6780 
6-59 
5260 
12-12 
10220 
9-52 
8510 
7-06 
6610 
3-76 
4880 
5-14 
8840 
7-50 
8190 
5-87 
6450 
2-29 
4630 
2-98 
8290 
4-58 
7690 
3-91 
6130 
1-39 
4440 
1-61 
7620 
2-80 
7370 
2-52 
5850 
0-78 
4200 
0 
6910 
1 00 
6990 
1-47 
5640 
0 
3900 
- 0-67 
6890 
0 
6450 
0-65 
5370 
-0-39 
3740 
- i ll 
6310 1 
- 0-79 
5750 
0 
5040 
-1-11 
3310 
- 1-48 
6040 1 
- 1-30 
5420 
-0-81 
4610 
-1-85 
2660 
- 1-85 
5750 
- 1-85 
4930 
-1-48 
4170 
-2-31 
1790 
- 2-41 
4800 1 
- 2-78 
2930 
-2-22 
3310 
-2-78 
270 
- 2-78 
3820 1 
- 3-71 
- 430 
-2-78 
1630 
-3-24 
-1250 
- 3-33 
1490 ' 
- 4-17 
-1630 
-3-22 
- 110 
-3-71 
-2280 
- 3-89 
- 300 
- 4-64 
-2490 
-3 71 
-1460 
-4-47 
-3580 
— 4-45 
- 1540 ! 
- 5-56 
-3960 
-4-63 
-3310 
-6-59 
-5260 
- 5-37 
- 3230 
- 6 49 
-5200 
— 5-56 
-4500 
- 6-48 
- 4830 ! 
- 8-38 
-6670 ' 
-6-48 
-5370 
- 8-34 
- 6580 
-13-01 
-8840 
-8-80 
-6780 
-10-18 
- 7780 
-18*23 
-10870 
i 
1 
i Cycle (5). 
Cycle (6). 
I 
1 Cycle (7). 
i 
Cycle (8). 
i 
1 
1 
B. 
H. 
B. 
i 
H. 
B. 
H. 
B. 
1" 
4-40 
3280 
2-91 
1410 
S 1-94 
560 
1-23 
270 
; 2-93 
3060 
2-18 
1330 
1-24 
450 
, 0-73 
220 
; 1-94 
2900 
1-10 
1110 
0-59 
340 
I 0 
80 
j 1-24 
2760 
0-31 
870 
: 0 
200 
0-39 
0 
0-51 
2550 
0 
760 
i -0-48 
30 
0-65 
80 
0 
2360 
-0-46 
600 
' -0-74 
- 40 
0-93 
160 
; - 0-43 
2110 t 
-0-93 
320 
-1-02 
-150 
1-23 
270 
> -111 
1730 
-1-39 
50 
-1-39 
-310 
, -1-85 
590 
-1-85 
- 380 
-1-67 
-420 
-2-31 
0 ; 
-2-31 
- 920 : 
-1-94 
-560 
-2-78 
-1110 1 
-2-91 
-1410 ; 
-3-25 
-1980 1 
-4-40 
-3280 ! 
I 
In addition to these, three higher cycles were taken, with limiting values of 
H and B, as under :— 
