AMERICA
... ARRIVAL OF THE MAIL STEAMER LiVEce'ooL, TUESDAY, APRIL 3.-This steamer arrived in our river at a little before onie o'clock this morning, having left Boston in the afternoon of Wednesday, the 21st nlt.- She has encountered rough weather during the whole of the passage. The news by her is not of a very exciting character. Of the commercial prospects of the country the New York Courier cad ...