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Farm Poultry 



of patented drinking fountains on the market, 

 many of which are automatic and keep a small 

 supply of water constantly before the fowls. 

 Under favorable conditions these fountaios will, 

 undoubtedly, prove very satisfactory. Under ad- 

 verse conditions, however, 

 some of them have not 

 given satisfaction, for the 

 reason that they are diffi- 

 cult to clean. If the foun- 

 tain becomes tainted, as it 

 is very likely to do in warm 

 weather, it is not so readily 

 cleaned as a simple tin or 

 earthed dish. Drink- 

 ing fountains that are 

 not readily cleaned are 

 obj ectionable . Many 

 automatic fountains are 

 constructed on the principle of the student lamp, 

 which permits a small quantity of liquid to pass 

 from the reservoir whenever a bubble of air is 

 permitted to enter it. The inverted jug or bottle, 

 with its opening placed in a shallow dish, illus- 

 trates the principle. See Fig. 41. An improved 

 arrangement is seen in Fig. 42. The reservoir is 

 supported between two uprights and so arranged 

 that it may revolve for convenience in filling. 

 Another arrangement, which has given satisfa - 



Fig. 42. An improved drinking fountain 

 with a revolving reservoir. 



