For China, the single port of Shang-Hai exported in 1851, 35,000 tons of tea, which is more than the figure given by Mr. Mac Culloch for all the produce imported from China. The commerce of the two single ports of Shang-Hai and Canton, in imports and exports, without reckoning opium, was estimated in 1851 at 400 to 500,000,000 _francs_, which answers nearly to 800,000 tons, taking the average value per ton at 600 _fr._, and which makes twelve times as much as the estimate given by Mr. Mac Culloch. At Manilla, the commerce in 1851 was 51,773,232 _fr._ of which about 24,000,000 were exports, and the remainder imports. This figure answers to the activity of 86,300 tons, taking the average value of the ton at 600 _fr._ It is more than twenty times the estimate of Mr. Mac Culloch. For Java we have not been able to procure any positive information, but according to the periodical publications (_Revue des deux Mondes_, _&c._) and according to the reports of travellers, the increase of business every year is much greater than in the Philippine Islands. We shall not therefore be charged with exaggeration, in fixing the figure of commercial activity in these colonies at 100,000,000 or about 150,000 tons, for the year 1851. Mr. Anderson estimated the commerce between Europe and Indo-China at £26,000,000, or 650,000,000 _francs_, thus distributed:— The commerce between Europe and the Indies is estimated at Exports £12,000,000 Imports 8,000,000 The commerce with Singapore, China, Java, &c. &c. at 6,000,000 ----------- Amount of the commerce with places to the east of Egypt £26,000,000 ----------- We have just seen from the researches of M. Arnaud Tison that Shang-Hai and Canton alone gave to commerce in 1851 an activity represented by the figure of 400 to 500,000,000 _francs_, which is quadruple that attributed by Mr. Anderson in 1841, to the entire commerce of the China Seas, including the Philippine islands, Java and Singapore. We are therefore quite sure of being below the reality in fixing the amount of commerce with places to the east of Egypt, in 1851 at 100,000,000, instead of the 26,000,000 in 1841. At the time we write, this figure of 100,000,000 sterling is perhaps quadrupled and carried to 10,000,000,000 francs, and when the Canal is opened, this latter sum will be a mere mistake. In fact not only the greatest part of the commerce of Europe with the extreme East will be carried on through the Maritime Canal, but moreover all the activity in operation between America and China, will abandon the route of Cape Horn for that of the Isthmus, which will be easier, shorter, and more certain.