X Conclusion
We will now bring this little volume to a close, having given you a brief outline of the simplest rudiments of that wonderful power of nature, Electricity.
We may compare this subject to a beautiful house the inside of which you would like to examine from top to bottom. We have opened the door for you; now walk in and examine everything. There may be a great many stairs to climb, but what you see and learn will repay for all the trouble.
The End
Footnotes
1 The filaments in modern “Mazda” lamps, as made at the Edison Lamp Works, are strips of metallic tungsten.
2 The batteries we will now describe are for closed-circuit work only, and they are never used for open-circuit work. But there is a type of battery made that is available for either open or closed circuit operation. This is the Edison Primary Battery, which will be described later on.
3 Practically, there is always one more negative plate than positive plates in a regular storage-battery cell. Consequently, a standard cell always contains an odd number of plates.