He connected the other ends of these wires to a dry battery.
The electrodes of a dry battery are the zinc and carbon elements.
If no light is available, a buzzer and dry battery should be used.
Cells of 'The 1900 Dry Battery' furnished the current used as a stimulus.
Instead of fuse, however, each one had on its end two small shiny screws such as are found at the top of a dry battery.
Dry battery cells may be purchased for either twenty-five cents or fifteen cents each.
We lifted a dry battery cell out of its pasteboard case and found that it was contained in a metal cup of sheet zinc.
A is an iron spring, B is a dry battery cell and C is the coherer.
Four dry battery cells stood around this upon the tray connected in series (Fig. 192).
A dry battery is too heavy for the motor truck to carry; so we must make a special two-cell battery like that shown in Fig. 204.