given railroads is 10. Asphalt has second BY C. M. GINTHER, diameter, for the purpose of determining the tractive place with 15, 22 and 29 pounds for good, medium, and effort and the energy expended in moving large and Telephone, telegraph, and electric railway managers poor, respectively. Tramways… … mands upon the strength and elasticity of a heavy pole line leave the poles made by this process ab- solutely unimpaired. One of the not only satisfactory, but: surprising. From these features of the poles is their remarkable elasticity. A 46; ordinary quality from 50 to 60; and soft macadam two…
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