Note.—In all the experiments, f and g are stationary.
| Distance from bank to bank. | Distance along shore. | 1st Trial. | 2d Trial. | 3d Trial. | 4th Trial. | 5th Trial. | 6th Trial. |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 22° | 23° | 23° | 22° | 22° | 22° |
| 1 | 2 | 31 | 32 | 31½ | 31 | 31 | 31 |
| 1 | 3 | 36 | 36 | 35½ | 35 | 35 | 35 |
| 1 | 4 | 36 scant | 36 scant | 34½ | 34 | 34 | 34 |
Experiment 2d.—Plates 28 square inches, conducted as above.
| Distance from bank to bank. | Distance along shore. | 1st Trial. | 2d Trial. | 3d Trial. | 4th Trial. | 5th Trial. | 6th Trial. |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 18° | 17° | 17° | 17° | 17° | 17° |
| 1 | 2 | 27 | 26 | 27½ | 27½ | 27½ | 27 |
| 1 | 3 | 31 | 31 | 31 | 31 | 31 | 31 |
| 1 | 4 | 31 | 31 | 31 | 31 | 31 scant. | 31 |
Experiment 3d.—Plates 14 square inches, conducted as No. 1.
| Distance from bank to bank. | Distance along shore. | 1st Trial. | 2d Trial. | 3d Trial. | 4th Trial. | 5th Trial. | 6th Trial. |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 8° | 8½° | 8½° | 8° | 8° | 8° |
| 1 | 2 | 19½ | 20 | 19½ | 19 | 19 | 19 |
| 1 | 3 | 23½ | 23½ | 23½ | 23½ | 23½ | 23½ |
| 1 | 4 | 24½ | 24½ | 23½ | 23½ | 23½ | 23½ |
Experiment 4th.—Plates 7 square inches, conducted as No. 1.
| Distance from bank to bank. | Distance along shore. | 1st Trial. | 2d Trial. | 3d Trial. | 4th Trial. | 5th Trial. | 6th Trial. |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 5° | 5° | 5° | 5° | 5° | 5° |
| 1 | 2 | 15 | 14½ | 14 | 15 | 15 | 12 |
| 1 | 3 | 17½ | 18 | 17½ | 17½ | 18 | 17 |
| 1 | 4 | 18 | 18 | 18 | 17½ | 17½ | 17 |
The distance from bank to bank, 30 inches. Depth of water, 12 inches. In experiment 4, the liquor of the batteries was very weak, exhausted towards the last; and in trials 5 and 6, the irregularities are to be attributed in part to the weak liquor, and in part to the twilight hour at which the experiments were made.
As the result of these experiments, it would seem that there may be situations in which the arrangements I have made for passing electricity across the rivers may be useful, although experience alone can determine whether lofty spars, on which the wires may be suspended, erected in the rivers, may not be deemed the most practical. The experiments made were but for a short distance; in which, however, the principle was fully proved to be correct. It has been applied under the direction of my able assistants, Messrs. Vail and Rogers, across the Susquehanna river, at Havre-de-Grace, with complete success; a distance of nearly a mile.