Our Boards of Trade publish the amounts of the leading articles that arrive at and depart from the principal cities, and thus they furnish us much additional information of value. Besides this, the county assessors are sometimes directed to collect statistics upon certain points of interest, and now that we all contribute toward the extinction of the national debt, the United States Assessors in the several districts are put in possession of data, which should be very correct, in regard to certain productions that are specified by act of Congress as liable to taxation. By these several means we may have an opportunity of learning from time to time what are the productions of the country, and their aggregate amounts are surprising to most of us. When they relate to our special interests, they are often very encouraging. This is particularly the case with those persons who have yielded to the popular prejudice that cotton was the main agricultural production of the United States; to such it will be satisfactory to learn that the crop of corn, as reported in the last census, is of nearly equal value, at the usual market prices of each article. Fruit-growers will be encouraged to find that the value of orchard products, according to the same returns, was nearly twenty millions, that of Ohio being nearly one million; of New York, nearly three and three-quarters millions; that the wine crop of the United States, an interest that is still in its infancy, amounted to nearly three and one-quarter millions; and that the valuation of market garden products sums up to more than sixteen millions of dollars' worth. It is to be regretted that for our present purpose, the data are not sufficiently distinct to enable us to ascertain the relative value of the productions of our orchards of apples, pears, peaches, quinces, and the amount and value of the small fruits, as they are termed, since these are variously grouped in the returns of the census takers, and cannot now be separated. Of their great value, however, we may draw our conclusions from separate records that have been kept and reported by individuals, who assert the products of vineyards in some cases to have been as high as three thousand dollars per acre; of strawberries, at one thousand dollars; of pears, at one hundred dollars per tree, which would be four thousand dollars per acre; of apples, at twenty-five bushels per tree, or one thousand bushels per acre, which, at fifty cents per bushel, would produce five hundred dollars.