. Water & sewage works . must drive over miles of slippery roadand only have a few miles of improvedhighway, in which case he would natural-ly prefer to use narrow tires for the en-tire distance, rather than to attempt theuse of wide tires over the slippery sec-tion of the road. There is no question that protectionand economical maintenance of improvedhighways require that narrow tiresshould be discarded, and ordinances mustbe enforced which will prevent their useon main traveled highways which havebeen improved at great expense. If a ve-hicle owner desires to use narrow-tirewagons or slippery
. Water & sewage works . must drive over miles of slippery roadand only have a few miles of improvedhighway, in which case he would natural-ly prefer to use narrow tires for the en-tire distance, rather than to attempt theuse of wide tires over the slippery sec-tion of the road. There is no question that protectionand economical maintenance of improvedhighways require that narrow tiresshould be discarded, and ordinances mustbe enforced which will prevent their useon main traveled highways which havebeen improved at great expense. If a ve-hicle owner desires to use narrow-tirewagons or slippery roads, he must beabsolutely prevented from using the sametires on improved roads. Equal, if notgreater, damage can be done to the high-way with tires of insufficient width onmotor trucks. There is no state wherewide tire ordinances are drawn which re-late to both horse-drawn and motor-drivenvehicles, or w-here a scientific attempthas been made to prepare such ordinan-ces or where a strict enforcement is had. Jiihj •^^r^ FIRE AND WATER m Sanitary Significance of the More Common Constituents of Water By Oeorge A. Johnson, before the Amer-ican Water Works Association. Eliminating from discussion for tlietime being all forms of bacterial andother microscopic life, let us first consid-er the evidence bearing on the sanitarysignificance of the more common constit-uents of water, as determined by chemi-cal analysis. Physical, Features Under this heading, of course, cometaste and odor, color and turbidity. Whateffect on the health of the consumer havethese features as applied to water? A water heavily charged with mud willnaturally possess an argillaceous orclayey taste and odor, the same being in-tensified on heating. This is not agree-able to many. Assume that a water con-tains on the average 100 parts per mil-lion of suspended matter. In a yearstime an adult will consume in this wayabout 1/7 pound of such matter, or some5 pounds in a lifetime. This quantitywill go a consid
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsewerage, bookyear191
