A great tubular iron bridge is now being constructed at Newcastle, England, and will be completed in about two years, for the Egyptian Railroad, which crosses the Nile about midway between Cairo and Alexandria. The river there is 1,100 feet wide, and a steam ferry boat is now employed to do the business. It does not suit the go-ahead spirit of the Pasha. He was once detained for four hours in crossing by an accident to the boat, and he then gave Robert Stephenson orders to build this bridge.