WASHINGTON, _June 17, 1846_.
_To the House of Representatives of the United States_:
I communicate herewith a report from the Secretary of the Navy,
accompanied with the correspondence called for by the resolution of the
House of Representatives of the 4th of May last, between Commander G.J.
Pendergrast and the Governments on the Rio de la Plata, and the foreign
naval commanders and the United States minister at Buenos Ayres and the
Navy Department, whilst or since said Pendergrast was in command of the
United States ship _Boston_ in the Rio de la Plata, touching said
service.