FOUNTAINS AND WATER SUPPLY 



19 



kept warm and free from ice. Fountain and feed box 

 work automatically. (Jil i,s burned. The idea could be 

 combined with the fountain shown in Figure 19 or 21 

 so that more than one substance mav be kept warm 

 from a single lamp. 



Anti-Freeze Fountain— An earthen jug is so fas- 

 tened into the half barrel by means of crosspieces that 

 its mouth will come near the bottom of the tub, upon 

 one side — a piece of a stave being removed at that 



FIG 23 : NON-FREEZING FOUNTAIN 



point (Figure 23). The space around the jug is filled 

 with fermenting horse manure, and slats are nailed 

 across, when the "fountain" is ready for use. Fill the 

 jug with water and cork it ; then invert the tub, bring- 

 ing the mouth of the jug over a basin, as shown in the 

 engraving. When the cork is withdrawn the water will 

 flow until the mouth of the jug is covered ; it will then 

 cease, and as the water is used, more will come from the 

 jug, and so on, forming a continuous self-actiop' foun- 



