Show A BRIDGE According to 10 the 0 Ire Iran Age A the tb new teel steel bridge of the Chicago J Alton over the tile river near nr h eld a Ill III ha h has been made almost noise not noiseless less 1 lea the tile vibrations vibration of the Ironwork when laen a train crosses e bring being almost almot en entirely entirely n eliminated by laying eight Inches Inch of ballast ballat between tl 11 v nl pcr and tho Iho steel tHI structure There Ther l I la sold to 10 h bo be boI I lose le nol noise when a train manes crossea t this bridge than when running along th the Iho ordinary roadbed The Th extra pause ni tor Mr the ballast and heavier num number ben ber required melee mak th the more practicable for tor short abort puns al than Ihan for long ones one but bul It t value for foi 0 dt t le 1 v line Un should hould be as u great t |