ME. C. V. WALKEE ON MAONETIC STOEMS AND EAETH-CUEEENTS. 
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Table II. — Galvanometer Tests. 
1. In short circuit. 
Battery : Zinc and Platinized Graphite, 4 in. X 2 in. 
Eight. Left. Mean. 
1 cell 37 37 37 
2 cells 56 58 57 
3 cells 64 68 66 
4 cells 68 73 70^ 
5 cells 71 77 74 
6 cells 73 79 76 
2. In Margate — Ashford Telegraph Circuit, 61|- miles. 
Battery : Zinc and Copper in sand, 3 in. x 3 in. 
O 
3 cells 5 
6 cells 13 
12 cells 26 
18 cells 32 
24 cells 44 
30 cells 48 
36 cells 54 
42 cells 59 
48 cells 62 
Good telegraph signals produce 60 
Middling „ „ 54 
Weak „ „ 40 
