In 1829 he prepared for Mr. Ingham, then secretary of the treasury, a masterly statement of the relative value of gold and silver. In 1830 Mr. Gallatin wrote for the "American Quarterly Review" his essay, "Considerations on the Currency and Banking System of the United States." Appearing at the time when the renewal of the charter of the Bank of the United States was an absorbing question, this essay was equally sought for by both the friends and opponents of the bank. It is not confined, however, to this subject, but covers the entire field of American finance. His treatment of the currency question was novel. He analyzed the systems of Europe, compared them with those which prevailed in the United States, and reached the conclusion, the general correctness of which has been justified by the experience of all other nations, and sooner or later will be accepted by our own; namely, the necessity of a currency strong in the precious metals, and the restriction of paper money to notes of one hundred dollars to be issued by the government. This limit is higher than that adopted in France and England, but the general principle that a circulating medium is sound only as it is strong in gold and silver, and that gold and silver can only be retained permanently by making a place for them in the circulating medium by a restriction of paper issues, will yet find favor even in this paper-loving country. In 1832 Mr. Gallatin accepted the presidency of a bank in New York, the subscription to the stock of which, $750,000, was completed by Mr. John Jacob Astor on condition that Mr. Gallatin should manage its affairs. The direction of its concerns, without absorbing his time, kept him in the financial current. The bank was called the National Bank of New York. But not in this modest post was he to find the financial path smooth. It is true he had lived in the flesh to see the financial millennium. The rapid growth of the country and the faithful adherence of his successors in the Treasury Department to the funding principle had at last realized his dream. The national debt was extinguished. The last dollar was paid. Louis McLane, secretary of the treasury, on December 5, 1832, in his report on the finances, said that the dividends derived from the bank shares held by the United States were more than was required to pay the interest, and that the _debt_ might therefore be considered as substantially extinguished after January 1, 1833.