. Railway master mechanic [microform] . of information into one of themost exhaustive treatises on the subject the reviewer hasever had the benefit of reading. The book is divided intothree parts and subdivided into ten chapters. Part I treatsof the transformation of water power into electrical energy;Part II treats of the transmission of high tension electricalcurrents, and Part III gives an exposition of modern Am-erican and European hydroelectric developments. The bookis illustrated with over five hundred photographic reproduc-tions, maps, and line drawings. The General Railway Supply Co. o
. Railway master mechanic [microform] . of information into one of themost exhaustive treatises on the subject the reviewer hasever had the benefit of reading. The book is divided intothree parts and subdivided into ten chapters. Part I treatsof the transformation of water power into electrical energy;Part II treats of the transmission of high tension electricalcurrents, and Part III gives an exposition of modern Am-erican and European hydroelectric developments. The bookis illustrated with over five hundred photographic reproduc-tions, maps, and line drawings. The General Railway Supply Co. of Chicago has issued avery attractive booklet of the railway specialties handled bythis company. Among these are metallic sheathing, trapdoor and lifting device, curtain rollers, flooring and venti-lators. * * * Forsyth Products is issued by the Forsyth Steel Tie Pittsburg, Pa., and contains descriptions and illustrationsof steel ties and other accessories manufactured by this con-cern. October. 1909. RAILWAY MASTER MECHANIC 4 13. Fig. 1. Punching and shearing machines, boiiermakers tools, rolls,etc., are described in a recent catalogue issued by the Cov-ington Machine Co. of Covington, Va. * % * A twelve-page booklet of envelope size has just been is-sued by the Joseph Dixon Crucible Company, describing theirfacings for various kinds of work. The purchasing agentwill be glad to know that the listings include prices. * * * The Cleveland Twist Drill Co. of Cleveland, O., has issueda little leaflet on Drill Grinding, which contains a bit ofuseful information on this too much neglected subject. * * * Keuffel & Esser Co. of New York has issued a new leafletdescriptive of the blue print papers manufactured by thiscompany. Case Hardening* Case hardening is a process of converting wrought iron intohardened steel and still retain a fibrous iron center to keep samefrom breaking. The practice at our shop- is this: We use castiron boxes of different sizes to suit the different piece
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
