Countries from whence British vessels have arrived at the port of Riga during the year 1842:-- No. of vessels. Tonnage. Remarks. United Kingdom, 387 59,629 With cargoes and in ballast. Hamburg, 6 1,261 In ballast. Denmark, 21 3,730 ... Norway, 13 2,438 ... France, 5 670 ... Belgium, 1 484 ... Holland, 6 1,018 ... Prussia, 4 562 ... Sweden, 3 669 ... --- ------ Total, 446 70,461 Total value of Countries to exportations whence exported. 1842 exports. Tons. to Great Britain. British vessels, 446 70,461 L.1,527,810 5 4 United Kingdom. The commerce of Odessa represents a closer approximation still between imports and exports; and they would perhaps nearly balance, but for the large shipments of wheat to this country, which contribute to swell the exports. In 1842, 174 British ships entered, tonnage 44,428, sailed 176 tonnage, L.44,929 Total value of imports by them, 185,870 Of which, from the United Kingdom, 184,370 The remainder by 64 British vessels entering from Leghorn, Turkey, Algiers, Amsterdam, mostly in ballast. Total average of exports, 784,865 Of which, to the United Kingdom, 776,995 The remainder to the countries above named. 1841, Total imports by British ships, 147,950 Do. exports do. 590,570 1840, Total imports by British ships, 130,660 Do. exports do. 859,090 The commerce of St Petersburg is stated, for 1812, imports and exports together, at the value of 97,795,415 silver rubles. And of 1147 foreign vessels which left that port and Cronstadt with cargoes, more or less, 515 were British, of 117,793 tonnage--being a rather considerably less number than in either 1840 or 1841.