1908-9.] Vibrational Neutral Points in Magnetised Iron. 23 
Table VI. — Decreasing Cyclic Field. Transverse Oscillations. 
o> 
Tog 
s 5 
• rH 
m g 
«4H . 
Oscillations superposed 
upon 
Oscillations regarded as superposed 
upon H = + 0*9. 
°.3 
-4—^ ' _ 
too 5 
p Cu 
H O, 
a) t -1 
H= +0-9 
reduced from 
H— + 1*9. 
H= -0*9 
reduced from 
H= -19. 
Average 
readings. 
Summation. 
1 
Summations x 2-34 
= Total change of B. 
1 
-0-25 
0-5 
-0-375 
-0-375 
-0-9 
2 
0 
0 
0 
-0-375 
-0-9 
3 
0-5 
-0-25 
0-375 
0 
0 
4 
0-75 
-0-75 
0-75 
0-75 
1-7 
5 
075 
-0-75 
0-75 
1-5 
3-5 
6 
0-75 
-0-75 
0-75 
2-25 
5-3 
7 
0-75 
-0-75 
0-75 
3-0 
7-0 
8 
DO 
-1-0 
1-0 
4-0 
9-3 
9 
1-0 
-1-0 
1-0 
5-0 
11-7 
10 
TO 
- 1-25 
1-125 
6-125 
14-3 
11 
1-25 
- 1-25 
1-25 
7-375 
17-2 
Oscillations superposed 
2 upon 
" m £3 
Length o 
spark in 
H= +0-65 
reduced from 
H=+l-9. 
H= - 0-65 
reduced from 
H= -1-9. 
1 
-0-75 
0-75 
2 
-0-25 
0-25 
3 
0 
0-25 
4 
0-25 
-0-25 
5 
0*5 
0 
6 
0-5 
-0-5 
7 
0-75 
-0-25 
8 
0-5 
-0-5 
9 
0-5 
-0-75 
10 
0-75 
-0-75 
11 
0-75 
- 0-75 
12 
0-75 
- 0-5 
Oscillations regarded as superposed 
upon H= +0*65. 
Average 
readings. 
Summation. 
Summations + 2‘34 
= Total change of B. 
-0-75 
-0-75 
-1-7 
-0-25 
- i-o 
-2-3 
-0-125 
- 1-125 
-2-6 
0-25 
-0*875 
-2-0 
0-25 
-0-625 
-1-4 
0-5 
-0-125 
-0-3 
0-5 
0-375 
0-9 
0-5 
0-875 
2-0 
0-625 
1-5 
3-5 
0-75 
2-25 
5-3 
0-75 
3-0 
7-0 
0-625 
3-625 
8-5 
Curve H = 0'65 of fig. IX. Curve H — 0*9 of fig. IX. 
