Explanatory Note.—The whole of the exports from the ports of Delaware, Baltimore, and New Orleans, are placed in the column of Northern exports, because there is no means of determining what proportion of them were from free or slave States, and it has been thought best to give this advantage to the North. Taking into the account only the heavier amounts, the exports from these ports foot up $11,287,898; of which near one-half consisted of provisions and lumber. The total imports for the year were $338,768,130. Of this $20,895,077 were re-exported, which, added to the domestic exports, makes the total exports $356,789,462, thus leaving a balance in our favor of $18,021,332.