The value of our exports of breadstuffs and provisions, which it was supposed the incentive of a low tariff and large importations from abroad would have greatly augmented, has fallen from $68,701,921 in 1847 to $26,051,373 in 1850 and to $21,948,653 in 1851, with a strong probability, amounting almost to a certainty, of a still further reduction in the current year.

The aggregate values of rice exported during the last fiscal year, as compared with the previous year, also exhibit a decrease, amounting to $460,917, which, with a decline in the values of the exports of tobacco for the same period, make an aggregate decrease in these two articles of $1,156,751.

The policy which dictated a low rate of duties on foreign merchandise, it was thought by those who promoted and established it, would tend to benefit the farming population of this country by increasing the demand and raising the price of agricultural products in foreign markets.

The foregoing facts, however, seem to show incontestably that no such result has followed the adoption of this policy.  On the contrary, notwithstanding the repeal of the restrictive corn laws in England, the foreign demand for the products of the American farmer has steadily declined, since the short crops and consequent famine in a portion of Europe have been happily replaced by full crops and comparative abundance of food.

It will be seen by recurring to the commercial statistics for the past year that the value of our domestic exports has been increased in the single item of raw cotton by $40,000,000 over the value of that export for the year preceding.  This is not due to any increased general demand for that article, but to the short crop of the preceding year, which created an increased demand and an augmented price for the crop of last year.  Should the cotton crop now going forward to market be only equal in quantity to that of the year preceding and be sold at the present prices, then there would be a falling off in the value of our exports for the present fiscal year of at least $40,000,000 compared with the amount exported for the year ending 30th June, 1851.

The production of gold in California for the past year seems to promise a large supply of that metal from that quarter for some time to come.  This large annual increase of the currency of the world must be attended with its usual results.  These have been already partially disclosed in the enhancement of prices and a rising spirit of speculation and adventure, tending to overtrading, as well at home as abroad.  Unless some salutary check shall be given to these tendencies it is to be feared that importations of foreign goods beyond a healthy demand in this country will lead to a sudden drain of the precious metals from us, bringing with it, as it has done in former times, the most disastrous consequences to the business and capital of the American people.

The exports of specie to liquidate our foreign debt during the past fiscal year have been $24,263,979 over the amount of specie imported.  The exports of specie during the first quarter of the present fiscal year have been $14,651,827.  Should specie continue to be exported at this rate for the remaining three quarters of this year, it will drain from our metallic currency during the year ending 30th June, 1852, the enormous amount of $58,607,308.