. Official proceedings . BRADY BRASS CO. MANUFACTURERS OF CYPRUS BRONZE FOR LOCOMOTIVE and CAR BEARING USE ENGINE CASTINGS BABBITT METALS JOURNAL BEARINGS MOTOR BEARINGS (ienV-ral Oflice aiul Works, 200-214 Tenth Street, Jeriey City. N. M BRADY, President This Space For OFFlCI/vU P R O CEEDINGS jC^^ mM, April 26, 1912 No. 6. A STUDY OF THE PROPER HARDENING AND CLASSIFICATION OF TOOL STEELSBy W. B. Sullivan, Representative of The Carpenter Steel Co, West Street Bldg.,New York. Q & C WEDGE Anti-Rail Creepers. Q <a c CO.

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