Mabtlaxo AXD DeIaWABB fcAlt.KoAfi.--Chief Engineer Tilghman passed the first train over his road on the 9th instant. It consisted of a house car and twelve flat cars, loaded with ! iron, chains and spikes. Tbe road is expected to be completed to Oreemborough, Caroline county, Md., by the Ist of March, and to Easton by March next. .