Electro-Magnetic Telegraph
We understand that the business of the electro-magnetic telegraph between Washington and this city, since it became a branch of the Post Office Department, has far exceeded expectation. The correspondence between the merchants of the two cities, we are informed, is constantly carried on by means of this important invention; and we learn that it is frequently the case that orders, received here at 1 o’clock, P. M. from Washington, are filled and the goods placed in the freight train of cars at 3 o’-clock tho same afternoon, at which hour the reception of heavy goods ceases for the day. Orders for small packages, received at half-past 4, are attended to promptly, and the goods forwarded by the passengers train which leaves here at 5 o’clock, and reaches Washington at half past 7 o’clock.