108 



THE WORLD'S ADVANCE 



center of the former a branch of No. 14 

 extends in either direction to provide 

 outlets for the 2i-candlepower living 

 room lights and the six candlepower 

 lamps for the sleeping balconies. The 

 former lamps may be carried in fittings 

 suited to the furnishings of the room. 

 For instance, if a library table occupies 

 the center of the floor, a suitable fixture 

 would be a double ceiling pendant with 

 mission lamps. On the other hand, if 

 a broad, practical illumination for the 

 entire room is desired, there is nothing 

 better than the automobile dome light 

 suggested for the porch. The fixtures 

 over the sleeping balconies may be sim- 

 ple receptacles. 



For the kitchen and dining room the 

 outlets at the ends of the branch of No. 

 14 wire may be ordinary droplights with 

 shades. The light here should be serv- 

 iceable rather than ornamental in order 

 that the camp's chief cook and the asso- 

 ciated dishwashers may have plenty of 

 illumination while engaged in the pur- 

 suit of their important tasks on the eve- 

 nings of dark and stormy days. 



The wire may be carried either on 

 cleats or in wooden or metal moulding. 

 The wooden moulding is perhaps to be 

 preferred, as it is inexpensive, easy to 

 install, and, what is more, it may readily 

 be stained or painted to harmonize with 

 the decoration of the ceiling. The out- 



Arrangement of Storage Battery and Switchboard 

 Under Porch Seat. 



lets may come in wooden blocks of stand- 

 ard construction upon which the minia- 

 ture fixtures are secured. No snap 

 switches have been suggested with the 

 exception of the one for the porch light, 

 as the individual worker will place them 

 where convenience dictates. 



To return to the battery and its hous- 

 ing. A simple switchboard should be 

 made as depicted in the drawing show- 

 ing an interior view of the closet beneath 

 the porch seat. The switchboard should 

 carry a double pole, double throw knife 

 switch, a cut-out fused to 10 amperes, 

 and a battery voltmeter and ammeter. 

 Above the board is fitted a miniature 

 lamp which should preferably be oper- 

 ated from a single dry cell placed be- 

 side the storage battery. The diagram 

 of connections is shown in the drawing, 

 and a moment's study shows us that the 

 switch, when thrown to the left, places 

 the battery in circuit with the house 

 mains leading to the lamps and, at the 

 same time, permits an examination of 

 the condition of the cells to be made 

 while they are in use. For instance, if 

 the voltage is below six when the am- 

 meter reads two amperes or more, the 

 battery needs recharging. Under good 

 working conditions, the voltage should be 

 slightly over six when the full load is on. 



Throwing the switch to the right dis- 

 connects the house wires and places the 

 battery in a circuit which may be used 

 for charging through the addition of a 

 generator and engine. 



A SPRING WHICH FLOWS GAS- 

 OLINE 



A phenomenon which is so far un- 

 explained has been discovered at Am- 

 herst, Ohio, in the nature of a spring 

 which flows gasoline. At first it was sup- 

 posed that this was caused by the leakage 

 of some gasoline tanks from nearby gar- 

 ages. The tanks have been thoroughly 

 examined, however, and found to be per- 

 fectly tight, and the mystery remains. 

 About two or three gallons of pure gas- 

 oline flows from the spring every hour, it 

 is estimated, and a lighted match readily 

 ignites the spring's discharge. 



