| The theory of the electrophorus is very simple, provided the student has clearly grasped the principle of induction. |
| These instruments are the electrophorus, the condenser of electricity, and the doubler of it. |
| If you do not get a good spark from the electrophorus, read the directions again. |
| To use the electrophorus, the ebonite is given a negative charge by striking it with fur or flannel. |
| The electrophorus has historically been used as a charge dispensing device. |
| The electrophorus cover, E C, furnished, is a tin box with a fancy top. |