20 
Proceedings of the Royal Society of Edinburgh. [Sess 
Table IV. — Decreasing Cyclic Field. Co-directional Oscillations. 
Oscillation Solenoid No. 2. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
TS 
CD 
02 
02 
o 
?H 
o 
02 
ch 
o 
• rH 
o 
pi 
p 
o 
o 
p 
o 
• rH 
+3 
gS 
o 
02 
o 
u 
p 
O 
O 
0J 
m 
w 
r-4 
?H 
• • rH 
Oscillations superposed 
upon 
Oscillations regarded as superposed 
upon H = + 4 - 4. 
d qJ 
a “ 
.Jh 
o 
o' 
£ 
H = + 4-4 
reduced from 
11= +20. 
H= -4-4 
reduced from 
H= -20. 
Average 
readings. 
Summation. 
Summations x 1’54 
= Total change of B. 
1 
H3 
X) 
rn 
m 
-34 
Tj 
CD 
34 
-34 
-34 
-52 
2 
o 
Ph 
o 
p 
- 7 
02 
02 
O 
Ph 
O 
8 
- 7-5 
-4F5 
-64 
3 
m 
p 
o 
0 
CO 
r-j 
o 
- 1 
0-5 
-41 
-63 
4 
O 
0) 
P 
4 
o 
O) 
C 
r-' 
- 4 
4 
-37 
-57 
5 
P 
o 
o 
14 
o 
o 
rH 
- 8 
11 
-26 
-40 
6 
rH 
o 
• rH 
4-3 
c3 
18 
c 
*4-3 
- 18 
18 
- 8 
-12 
7 
r— 1 
• rH 
o 
m 
19 
'o 
02 
O 
-22 
20-5 
11-5 
1 
14 
8 
O 
^H 
c3 
23 
c5 
13 
-21 
22 
33-5 
52 
9 
no 
p 
o 
O 
24 
p 
o 
o 
QJ 
-22 
23 
56-5 
87 
10 
<1) 
w. 
27 
m 
-25 
26 
82-5 
127 
32 
6 
0 
6 
14 
12 
13 
12 
13 
13 
T3 
a) 
02 
o, 
O 
pH 
o 
p 
02 
r~| 
o 
• r— I 
o 
cu 
p 
p 
o 
o 
p 
o 
• rH 
r — H 
• f-H 
o 
rr. 
O 
pH 
o3 
no 
P 
o 
o 
<D 
02 
34 
-33 
-33 
8 
- 7 
- 40 
0 
0 
-40 
- 8 
7 
-33 
-17 
15-5 
-17'5 
-12 
12 
- 5*5 
- 11 
12 
6-5 
- 11 
11-5 
18 
- 9 
11 
29 
- 6 
9-5 
38-5 
-51 
-62 
-62 
-51 
-27 
- 8 
10 
28 
45 
59 
Dasli line curve H = 4*4 of fig. VII. Full line curve H = 4’4 of fig. VII. 
