FOUNTAINS AND WATER SUPPLY 17 



The rod or axle on which it rests goes completely 

 through the fountain and is of galvanized iron, being 

 soldered around it to make it tight. When filling, the 

 fountain is turned bottom up and made fast by the 

 little hooks, as seen in the cut. The rod should be 

 exactly in the center of the tank. The principle is the 

 same as in all fountains that turn in the hand, only the 

 frame in which it rests makes it possible to increase 

 the size. 



A fountain like that in Figure 20 may be kept from 

 freezing at very little expense for oil, and it works per- 



FIG 21 : KETTLE AND HEATER 



fectly if the funnel part is carefully soldered where it 

 joins the dish. Take a plain side, cake-baking tin 

 with a funnel in the center ; also, a butter firkin or nail 

 keg, and a small naphtha hand lamp (without the cot- 

 ton filling). Place the lamp on the bottom of the 

 firkin, lower the tin until the wick of the lamp is half 

 an inch up the funnel, now insert four screws in the 

 bottom of the firkin, opposite to each other, and just 

 above the bottom of the tin. These pressing against 

 the slanting sides of the tin will support, and turned 

 out or in will raise or lower the tin. Tack the firkin 



