lines 8 inches. The lines are laid out radially, matic Tube Company, of Philadelphia, drew up plans an exhauster at the other. The modified system now air being compress- in use is worked by means of large storage tanks, con- ed at one end and taining either compressed or rarefied air, and it com-… … val “Sore shaped in section, 9.-THE BEACH AUTOMATIC POSTAL DELIVERY BOX. measuring 41g feet wide by 4 feet high, for a set of lines running from the general post office the straight portion being of cast iron and the bends same year as that of Berlin. Here a novel feature was of brick. It was…
Internet Archive · Public domain (published before 1931). Free to use for anything.
