Show COMPRESSED AIR New York Cor Cr Pittsburg Pitts burg Dispatch An example of how a big bis construe construction tion company economizes on its various jobs is afforded by present resent 1 operations by the concern building the Belmont tunnel under the East river at Forty second street which also is doing a section of the new Sixth avenue tun tunnel tunnel tunnel nel At the foot of street t the company has a compressed air plant Instead of or erecting another r plant for its Sixth avenue contract it ran a line of pipe along street t to tc the subway at Park avenue where vh re a connection was made with a aline aline aline line used by the company when it was helping to build the subway At Sixth avenue the connection was picked up again and the t e pipe carried on the ale ele elevated el structure down to Thirteenth street where he men are working now Thus the air that drives and drills deep underground at Thir Thirteenth Thirteenth street originates at the foot toot of ot East almost two miles mlles away awa U |