roads from the variations of temperature make it neces- sand-paper and a hard brush, it will become as smooth sary to leave a space between their ends, and the falling as enamel, and can always be kept bright by rubbing. of the wheelsinto these spaces is the principal cause of Painters are inthe… … AND MANUFACTURERS. demanding in this country millions of dollars yearly for the repairof rails, of which all but the ends are im good The SCIENTIFIC AMERICAN is a paper peculiarly adapted to all persons engaged in these pursuits, while to the Farmer, lousekeeper, condition. Great efforts have been…
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-658-394.webp)
