Hot Water in Barns 265 



from the system to rais'e it to about 99°. To 

 do this food must be burned, as literally as 

 coal is burned in the boiler to heat water. 

 It requires more units of heat to raise a pound 

 of water one dep^ree in temperature than any 

 other substance except two or three of the gases. 

 There are now so many styles of really good 

 air motors or wind mills, that water from wells 

 may be pumped at a minimum cost into storage 

 tanks. There is no longer any excuse for pump- 

 ing water by hand for any considerable number 

 of animals, nor for compelling them to seek 

 water in cold weather at some distant stream. 

 As has been said, there are many ways of secur- 

 ing a supply of water for the barn. The de- 

 tails of accomplishing the results desired are 

 many, but the result should always be the same: 

 an abundant supply of water within the barn 

 under more or less pressure. If this is not se- 

 cured the plans of a barn, as a whole, are un- 

 satisfactory. 



