14 
THE KEY. STEPHEN J. PEKRY ON THE MAGNETIC 
The following observations of Deflection at 1 foot and 1*3 foot serve as the com- 
plement of the above Table of vibrations, and furnish us with the Horizontal Component 
of the Earth’s Magnetic Intensity. 
Table VI. (bis). 
Station. 
Date. 
G. M. T. 
Temp. 
Dist. of 
magnets. 
Observed 
deflection. 
x m 
Log -. 
X 
h 
m 
O 
/ 
// 
Vangirard 
Aug. 
6 
4 
5 P.M. 
67-4 
1-0 
13 
11 
34 
9-06047 
4 
17 
68-3 
13 
5 
58 
5 
9-06040 
Rheims 
10 
6 
1 P.M. 
60-2 
1-3 
5 
58 
9 
9-05989 
6 
14 
59-8 
1-0 
13 
12 
0 
9*06015 
Metz 
12 
3 
32 p.m. 
70-0 
1-0 
13 
3 
29 
9-05628 
3 
49 
70-2 
1-3 
5 
54 
44 
9 05647 
6 
39 
54-4 
1-0 
13 
6 
33 
9*05684 
Strasburg 
14 
5 
10 P.M. 
66-5 
1-0 
12 
46 
54 
9-04688 
5 
21 
65-9 
1-3 
5 
47 
9 
9*04681 
Issenheim 
17 
3 
41 P.M. 
64-4 
1-0 
12 
43 
31 
9-04485 
3 
56 
64-2 
1-3 
5 
45 
41 
9-04485 
Mont Rolland 
19 
3 
40 p.m. 
64-1 
1-0 
12 
32 
28 
9-03859 
3 
51 
63-5 
1-3 
5 
40 
55 
9-03878 
Dole 
20 
9 
52 A.M. 
64-8 
10 
12 
34 
5 
9*03956 
10 
4 
65-1 
1-3 
5 
41 
35 
9-03975 
Dijon 
?> 
21 
3 
59 P.M. 
76-4 
1-0 
12 
37 
1 
9-04209 
4 
12 
76-7 
1-3 
5 
42 
43 
9*04)93 
Lyons 
?> 
23 
3 
50 p.m. 
73*4 
1*0 
12 
11 
30 
9-02720 
4 
1 
72-7 
1-3 
5 
31 
24 
9-02721 
Avignon 
25 
5 
9 P.M. 
81 0 
1-0 
11 
42 
10 
9-01028 
5 
19 
80-7 
1-3 
5 
18 
22 
9-01046 
Marseilles 
9? 
27 
4 
33 p.m. 
76-5 
1-0 
11 
28 
18 
9*00138 
4 
44 
76-4 
1-3 
5 
11 
52 
9-00119 
Monaco 
29 
2 
37 P.M. 
78-1 
10 
11 
36 
47 
9-00676 
2 
50 
77-9 
1*3 
5 
15 
55 
9-00690 
Montpellier 
5 ’ 
31 
5 
3 P.M. 
76-4 
1-0 
ii 
40 
55 
9-00916 
5 
15 
76*3 
1-3 
5 
17 
51 
9-00941 
Grenoble 
Sept. 
3 
3 
53 p.m. 
72-5 
1-0 
12 
14 
1 
9*02862 
4 
5 
72-4 
1-3 
5 
32 
15 
9*02830 
N. D. de iVJyans 
95 
4 
4 
1 6 P.M. 
69-0 
1-0 
12 
5 
36 
9-02341 
4 
47 
68-6 
1-3 
5 
28 
22 
9*02292 
Mongre 
? J 
7 
11 
14 A.M. 
69-3 
1-0 
12 
17 
9 
9*03019 
11 
24 
69*8 
1-3 
5 
33 
46 
9*03007 
St. Etienne 
59 
8 
3 
38 p.m. 
73-4 
DO 
12 
8 
15 
9*02530 
4 
8 
73-3 
1*3 
5 
29 
57 
9*0253 6 
Clermont 
,, 
11 
7 
58 
62-5 
DO 
12 
20 
17 
9-03150 
8 
8 
62-8 
1-3 
5 
35 
3 
3*03122 
Moulins 
95 
12 
2 
35 p.m. 
65-5 
1-0 
12 
31 
7 
9-03793 
2 
47 
65*5 
1-3 
5 
40 
7 
9*03791 
Vaugirard 
55 
14 
2 
18 p.m. 
69-9 
1-0 
13 
12 
53 
9-06135 
2 
27 
69-6 
1-3 
5 
58 
52 
9-06144 
Douay 
5> 
17 
10 
36 A.M. 
64-0 
1-0 
13 
36 
14 
9-07330 
10 
46 
65-1 
1-3 
6 
9 
10 
9*07335 
Boulogne 
)» 
20 
9 
3 A.M. 
58-7 
1-0 
13 
47 
34 
9*07879 
9 
25 
59-0 
1-3 
6 
14 
18 
9-07889 
From these Tables, combined with those of the Dip observations, we deduce the 
following values of the Horizontal and Vertical Components, and of the Total Magnetic 
Intensity. I he last column contains the calculated mean values of the magnetic moment 
of the deflecting magnet at each station. 
