Scientific American Volume 77 Number 05 (July 1897) . LATHES FOR Gunsmiths, ToolMakers, Experi-mental and RepairWork, etc. Senator Illus. F. & Jno. Barnes Ruby Street,Rockfobd, III. THE CARBIDES AND ACETYLENE Commercially Considered.—By T. Ii. Willson and J. , A consideration of the carbides andacetylene from a commercial point of view, preceded bva brief history of these compound?, the methods oftheir formation, and their chemical and physical prop-erties. With 10 illustrations. Contained in Scientifica merican supplement, Nos. 1 015 and 1016. Price10 cents e


Scientific American Volume 77 Number 05 (July 1897) . LATHES FOR Gunsmiths, ToolMakers, Experi-mental and RepairWork, etc. Senator Illus. F. & Jno. Barnes Ruby Street,Rockfobd, III. THE CARBIDES AND ACETYLENE Commercially Considered.—By T. Ii. Willson and J. , A consideration of the carbides andacetylene from a commercial point of view, preceded bva brief history of these compound?, the methods oftheir formation, and their chemical and physical prop-erties. With 10 illustrations. Contained in Scientifica merican supplement, Nos. 1 015 and 1016. Price10 cents each. To be bad at this office and from allnewsdealers. ARMSTRONGS PIPE THREADING —AND- CUTTING-OFF MACHINES Both Hand and Power. Sizes 1 to 6 , Gas, and Steam Fit-ters Tools. Hinged Pipe Cutters. Stocks and Diesuniversally acknowledged to bethe best. JST Send for ARMSTRONG MFG. , Conn. DRAWING AND DESIGN Mechanical tt Arch ectural Drawing; Marine,Stationary or *ive ErjgineeringjMining;Pr


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