. Dairy farming. Dairying. 276 DAIRY FARMING Water from the upper pervious stratum should be avoided wherever possible, even with wells of the kind just described. Especially is this necessary where the wells are shallow. The purest water is obtained by sink- ing the well through an impervious stratum, like that shown in Fig. 85. The most dangerous well is the common dug well with pervious walls and so located as to permit seepage into it from outhouses, barnyards and cesspools. Wells of this type are altogether too common on dairy Fig. of Well Water Contamination. (From Bu
. Dairy farming. Dairying. 276 DAIRY FARMING Water from the upper pervious stratum should be avoided wherever possible, even with wells of the kind just described. Especially is this necessary where the wells are shallow. The purest water is obtained by sink- ing the well through an impervious stratum, like that shown in Fig. 85. The most dangerous well is the common dug well with pervious walls and so located as to permit seepage into it from outhouses, barnyards and cesspools. Wells of this type are altogether too common on dairy Fig. of Well Water Contamination. (From Bui. 143 Kan. Exp. Sta.) All wells, whatever their construction, must be provided with water-tight metallic or concrete covers to prevent the entrance of impurities into the shaft. ICE SUPPIvY. Necessity of Ice. Where there is no equipment for. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Michels, John, 1875-. Milwaukee, Wis. , The author
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdairying, bookyear191
