On Saturday the 12th day of April, 1878, at half-past 3 P. M., the good Inman steamer City of Richmond, with us on board, loosed her cables, and the floating palace moved out into North River majestically,--as only such vessels can move,--passed the forts, and sailed on, till at dusk, yet before dark, the Highlands of Neversink--a misno...