He didn't know where the leaks were coming from in Europe, and he definitely didn't know where they were coming from in Arizona.
This guard wire prevents any current which leaks over the surface of the insulator from passing through the galvanometer G, and the galvanometer indication is therefore only determined by the amount of current which passes through the insulator, or by its insulation-resistance.
When a system is set vibrating and left to itself, the vibration gradually dies away as the energy leaks out either in the waves formed or through friction.
For the consideration of some classes of business the Senate goes into executive or secret session, although what is done at this session usually leaks out, and finds its way to the public through the press.
The vitriol chambers must be supported on all sides by suitable wooden or iron framework, and they are always erected at a certain height over the ground, so that any leaks occurring can be easily detected.