The acquisition of Louisiana, the large carrying trade which had passed under the American flag, and the rapid prosperity of the financial and industrial condition of the country aroused the jealousy of Great Britain, and determined her to check the further progress of the United States by war, if need be. The capture of the American frigate Chesapeake by the man-of-war Leopard, June 22, 1807, was only the first in a series of outrages which rendered the final collision, though long delayed, inevitable. Mr. Gallatin at once recognized that the Treasury could no longer be conducted on a peace basis. "Money," he wrote to Joseph H. Nicholson, "we will want to carry on the war; our revenue will be cut up; new and internal taxes will be slow and not sufficiently productive; we must necessarily borrow. This is not pleasing to me, but it must be done." Congress was called together for October 26, 1807, and on November 5, Mr. Gallatin sent in his annual report. There was still hope that Great Britain would make amends for the outrage, and Congress was certainly peaceably disposed. In the condition of the Treasury there was no reason as yet for recommending extraordinary measures. The revenues for the year passed the sum of seventeen millions; the balance in the Treasury reached eight and one half millions; the surplus on a peace footing was twelve millions. Mr. Gallatin recommended that the duties should be doubled in case war were threatened. He said, "Should the revenue fall below seven millions of dollars, not only the duty on salt and the Mediterranean duties could be immediately revived, but the duties on importation generally be considerably increased, perhaps double, with less inconvenience than would arise from any other mode of taxation." Experience had proven that this source of revenue is in the United States "the most productive, the easiest to collect, and least burdensome to the great mass of the people." But still the war-cloud did not break. Mr. Canning contented himself with war in disguise, and by his Order in Council of November 11, 1807, shut the ports of Europe to American trade, and wiped away the advantages of the United States as a neutral power. The United States answered with the act of embargo on December 22, 1807, completing, as far as it was possible for legislation to effect it, the blockade of the Treasury Department as regarded revenues from foreign imports. The immediate effect, however, of these acts in Great Britain and America was an enormous temporary increase of importations in the interim from the time of the passage of the act until the date when it took effect. To aid merchants in this peculiar condition of affairs an act was passed by Congress, on March 10, 1808, extending the terms of credit on revenue bonds.