METEORIC AND ARTIFICIAL NICKEL-IRON ALLOYS. 
43 
Meteoric Iron (1st Winding) (continued). 
Later Experiments. 
Number 
of 
experiment. 
Temperature. 
Number 
of 
experiment. 
Temperature. 
/* 
135-5 
(H = 0-475) C.G.S. 
135-5 
(H = 0-475) C.G.S. 
° C. 
°C. 
'22* 
638 
4-4 
f 45 
578 
0-58 
23 
576 
0-58 
1 46 
640 
0-88 
.24 
528 
1-805 
v. 47 
575 
0-63 
r 25* 
664 
4-85 
26 
552 
1-79 
f 48* 
18 
1-495 
1 
27 
503 
1-67 
\ 49* 
20 
1 • 555 
i 28 
480 
1-63 
29 
17 
1-595 
f 50 
465 
1-405 
r 30* 
314 
1-725 
\ 51 
576 
2-81 
i 
31 
545 
1-855 
[52 
466 
1-72 
32 
528 
1-88 
33 
17 
1-625 
r 53 * 
18-5 
1-995 
34 
168 
1-545 
^ 54 
20 
1-665 
35 
20 
1-625 
[55 
5 
1-54 
36 
284 
1-57 
37 
576 
3-52 
156 
20 
1-54 
38 
23 
2-31 
157 
-10 
1-545 
f 39 , 
— 
2-175 
58 
— 
— 
40 
163 
1-925 
59 
18-5 
1-57 
41 
307 
2-05 
60 
— 
— 
42 
386 
2-04 
61 
18 
1-55 
43 
434 
1-85 
62 
— 
1-545 
_ 44* 
464 
2-125 
63 
1-55 
* After each of the experiments marked by an asterisk the ring was raised to a temperature of about 
830° C., at which its permeability became too small to be measurable. 
Meteoric Iron (2nd Winding). 
First Experiments. 
Number 
of 
experiment. 
Temperature. 
Number 
of 
experiment. 
Temperature. 
I 1 
160-5 
(H = 0-433) C.G.S. 
160-5 
(H = 0-433) C.G.S. 
°C. 
°C. 
J 
' i 
17 
1-405 
11 
18 
1-095 
i 
2 
137 
1-335 
12 
21 
1-08 
3 
433 
1-465 
ri3 
821 
— 
4 
11 
1-49 
14 
587 
0-72 
j 
r 5 
18 
1-67 
i 
15 
537 
0-93 
1 
L 6 
588 
2-69 
.16 
475 
0-96 
j 
r 7 
— 
1-63 
17 
19 
0-97 
i 
L 8 
734 
3-37 1 
18 
923 
— 
j 
r 9 
— 
1-26 
1 
lio 
798 
— 
The ring was heated to 522° C. between (4) and (5); but the permeability was not 
observed. 
