3. IMPORTS FROM AND EXPORTS TO FOREIGN COUNTRIES,
During the Year ending June 30, 1851.

4. TONNAGE OF VESSELS ENGAGED IN FOREIGN TRADE,
During the Year ending June 30, 1851.

Total,

196,689,718 21,381,760 218,071,478 163,650,543 52.574.389 216,224,932

6. VESSELS BUILT, AND THE TONNAGE THEREOF, IN THE UNITED STATES, For the Year ending June 30, 1851.

7. COMPARATIVE VIEW OF THE TONNAGE OF THE UNITED STATES, From 1815 to 1851 inclusive, in Tons.

Enrolled and Licensed Tonnage employed in
Cod Mackerel Whale

Years.

Registered
Tonnage.

Enrolled Reg. Tonn. & licensed in Whale Tonnage. Fishery.

Coasting

Trade.

Fishery. Fishery. Fishery.

No separate returns of tonnage employed in the mackerel fishery were made by the collectors prior to the year 1830.

8. Entries and Clearances of American and Foreign Vessels, with their Crews, during the Year ending June 30, 1851.

Whole number of American vessels entered during the year ending
June 30, 1851, from foreign countries,

Whole number of foreign vessels entered, from do.,

8,951 10,759

Total of American and foreign vessels,

19,710

Whole number of American vessels cleared for foreign countries,
Whole number of foreign vessels cleared for do.,

9,274

10,712

Total of American and foreign vessels,

. 19,986

Crews of American vessels entered. Men, 113,471. 116,577.

Boys, 1,831.

Total,

Crews of foreign vessels entered. Men 90,796. 92,627.

Crews of American vessels cleared. Men, 113,640. Boys, 3,427. Total, 117,067.

Crews of foreign vessels cleared. Men, 89,659. Boys, 1,929. Total, 91,588.

NOTE. The returns from San Francisco do not give the crews of the vessels.