CHAPTER XXIX. 

 WATER SUPPLY FOR FARM AND CREAMERY. 



WATER SUPPLY FOR FARM. 



Importance of Pure Water. A great deal of disease 

 in farm homes is directly traceable to infected water. 

 Typhoid fever especially is so frequently caused by pol- 

 luted well water that physicians at once look to this as 

 the probable cause wherever this disease is found to ex- 

 ist. 



Where wells infected with disease germs happen to 

 exist on dairy farms, disease is not limited to the dairy- 

 man's own family, but may spread through the products 

 of the creamery. Many typhoid fever epidemics have 

 been positively traced to milk which has become infected 

 through water containing the disease germs. Nowhere 

 is pure water so important, therefore, as upon dairy 

 farms. 



The disease germs usually find their w r ay into the milk 

 through milk vessels which have been washed with in- 

 fected water. The use of such water for washing cows' 

 udders previous to milking may also be the means of 

 infecting the milk supply. 



Construction of Well. In a properly constructed 

 well, no water should enter it except near the bottom. 

 This compels the water to pass through a thickness of 

 earth sufficient to purify it where the wells are of a 

 reasonable depth. 



Where there is no rock or hard clay and where the 

 water can be had at a reasonable depth, the driven well, 



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