MR. DANIELL ON VOLTAIC COMBINATIONS. 
149 
No. 8.-55° W. 
7.-45 E. 
6.-35 W. 
5.— 10 E. 
With No. 4. the needle oscillated from one side of the coil to the other in the most 
extraordinary manner, first striking with considerable force against the pin on one 
side and then upon the other. Sometimes it seemed to hesitate between the two, 
and then to recede in one direction and advance in the opposite by sudden starts and 
jumps. These oscillations lasted for more than an hour, during which the experiment 
was continued, with equal force. The other cells were found, 
No. 3.-10° W. 
2— 20 E. 
There was a strong spark upon breaking the connections of all these secondary cur- 
rents, but they would not pass through the voltameter. 
These experiments were frequently repeated with the same general results ; some- 
times a cell in one position indicating a reverse current, sometimes one in another, 
the same cell occasionally passing to the normal direction, and at times oscillating 
violently between the two. 
To determine whether the metal steam-vessel had any influence upon these cur- 
rents, five of the cells were removed to a table, and connected in series with a galva- 
nometer, the needle of which was permanently deflected 90° E. When, in addition to 
the galvanometer connection, the two extreme cells were connected by a similar wire 
to those between the other cells, the needle was still deflected 15° E. : so that not- 
withstanding a shorter path was open to the battery current, and that through a 
conductor of considerably greater substance than the wires of the galvanometer, a 
portion still passed by the longer path. Under these circumstances. No. 1. cell was 
tested by a separate galvanometer, which was deflected 40° W. When the extra 
short connection of the battery was broken, the deflection from No. 1. fell to 30° W. ; 
and when this cell was totally unconnected with the others, its current was in the 
normal direction, or 50° E. When the short connections were all restored, it again 
returned to 40° W. I must here observe, that the galvanometers, not being of the 
same construction, were not used as accurate measures of the force, but only to 
indicate the direction of the currents, and occasionally to show that the force was 
increasing or declining. The other cells were tested in the same way, with the fol- 
lowing results : — 
No. 2. Battery connected by short wire . . . 30° E. 
Short connection broken ... 55 E. 
No. 3. Battery connected 30 W. 
but changed to E. 
Unconnected 55 E. 
