. Railway master mechanic [microform] . 23bO _ *3$-Z 6/%-9 BoAe of Art?as °b. 1 17e/77perofc/re,X here fromJ-?9°/:^ /b 397° /T Graphical Exposition of the Value of HeatingSurfaces. evaporated from the surface of the firebox, although thissurface was less than one-tenth of the whole heating sur-face. Per square foot of the respective surfaces, theevaporation from the firebox section amounted to fromtwo to three times that of the first section of tube sur-face. Electric Wiring of Machine Tools I-N the title of figure 3 appearing with the article onthe electric wiring of machine tools, presented


. Railway master mechanic [microform] . 23bO _ *3$-Z 6/%-9 BoAe of Art?as °b. 1 17e/77perofc/re,X here fromJ-?9°/:^ /b 397° /T Graphical Exposition of the Value of HeatingSurfaces. evaporated from the surface of the firebox, although thissurface was less than one-tenth of the whole heating sur-face. Per square foot of the respective surfaces, theevaporation from the firebox section amounted to fromtwo to three times that of the first section of tube sur-face. Electric Wiring of Machine Tools I-N the title of figure 3 appearing with the article onthe electric wiring of machine tools, presented inour April issue, a typographical error occurred. - Thewords Four side timber dresser direct connected to 15H. P. constant speed Crocker-Wheeler motor, shouldhave read 50 H. P., instead. Valve Lubrication WE often read about engines making records of 600miles per pint of valve oil, but they do not sayhow rapidly they are wearing away their valves, seats,cylinders and motion work, or how much coal is usedin overcoming the extra friction caused by poor lubrica-tion. Take


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Keywords: ., bookcentury1800, bookdecade1890, bookidrailwaymaste, bookyear1895