Page:Incandescent electric lighting- A practical description of the Edison system.djvu/62

 finally closed with screw plugs after the halves have been firmly secured together and the interior filled with insulating compound.

In Fig. 15 we have a view of an open



box showing the method of joining the wires together with the flexible connections; and in Fig. 16 is shown the upper and lower halves of the box with holes and screw plugs as described above. Fig. 17 shows a branch box having small wires leading therefrom. These boxes