. Official proceedings . Water-Tight Bolts ^ Lock Nuts • Floor Clips MacLEAN-FOGG LOCK NUT CO. 2646 Klldar* Avami*. Chicag*, IR. IV. PROCEEDINGS ll??PerYear ^^V* 25^ FcrCopy Vol. XXXVI. APRIL 22, 1937. RAILROAD ELECTRIFICATION By 3m. CHARLES KERB, JR., Railway Engineer, WestinghouseElectric & 3Ianufactaring Company, East Pittsburgh, Pa.

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