In 1798, the ship _Hazard_, Swift, master, owned by Perkins, Lamb & Co., Boston, visited the river. This same ship visited the river again in 1801. In 1802, this same Boston company sent the ship _Globe_, Magee, master, to the river. During the year 1802, a brisk, and something like a permanent American trade appears to have been in contemplation by this Boston company. They sent the ship _Caroline_, Derby, master, from Boston, and the ship _Manchester_, Brice, master, from Philadelphia. In 1803, Lamb & Company sent the ship _Alert_, Ebbets, master; also the ship _Vancouver_, Brown, master. This year, the ship _Juno_, Kendricks, master, from Bristol, Rhode Island, owned by De Wolf, entered the Columbia River for trade. In the year 1804, Theodore Lyman sent the ship _Guatimozin_, Bumsted, master, from Boston. The Perkins Company sent the ship _Hazard_, Swift, master, to the river the same year. In 1805, Lyman & Company sent the ship _Atahualpa_, O. Potter, master, from Boston. Lamb & Company sent the ship _Caroline_, Sturges, master, from the same place. On the 15th of November, 1805, Lewis and Clarke, with their party, having crossed the Rocky Mountains under the direction of President Jefferson, of the United States, arrived at Cape Hancock; remaining but a few days, they crossed the Columbia River and encamped near the mouth of a small river still bearing the name of these two explorers. They left their encampment in March, 1806, and returned across the continent and reported the result of their expedition to the government. This expedition consisted of one hundred and eighty soldiers or enlisted men. On arriving at the Mandan Village, on the Missouri River, in 1804, they encountered the influence of the Northwest British Fur Company, who, on learning their object, at once made arrangements to follow and get possession of the country at the mouth of the Columbia River. In 1806, soon after Lewis and Clarke left their encampment on their return to the United States, the ship _Vancouver_, Brown, master, entered the river, having been sent out by Thomas Lyman, of Boston, in expectation of meeting Lewis and Clarke's party at the mouth of the river. The Lamb Company sent the ship _Pearl_ the same year, under the command of Captain Ebbets. Lyman, in addition to the _Vancouver_, sent the brig _Lydia_, Hill, master, to the river, making three American ships from Boston in the year 1806. In 1807, the ship _Hamilton_ arrived in the river, sent by Thomas Lyman, of Boston, L. Peters, master. The Perkins Company sent the _Hazard_, Smith, master. In 1808, the ship _Derby_, Swift, master, sent by the Perkins Company. Lyman sent the ship _Guatimozin_, Glanville, master; both made successful trips in and out of the river. In 1809, the Perkins Company sent the ships _Pearl_ and _Vancouver_ into the river, the former commanded by Smith, the latter by Whittimore.