During the last fiscal year the amount paid to pensioners, including the expenses of disbursement, was $13,459,996, and 50,177 names were added to the pension rolls. The entire number of pensioners June 30, 1866, was 126,722. This fact furnishes melancholy and striking proof of the sacrifices made to vindicate the constitutional authority of the Federal Government and to maintain inviolate the integrity of the Union They impose upon us corresponding obligations. It is estimated that $33,000,000 will be required to meet the exigencies of this branch of the service during the next fiscal year. Treaties have been concluded with the Indians, who, enticed into armed opposition to our Government at the outbreak of the rebellion, have unconditionally submitted to our authority and manifested an earnest desire for a renewal of friendly relations. During the year ending September 30, 1866, 8,716 patents for useful inventions and designs were issued, and at that date the balance in the Treasury to the credit of the patent fund was $228,297. As a subject upon which depends an immense amount of the production and commerce of the country, I recommend to Congress such legislation as may be necessary for the preservation of the levees of the Mississippi River. It is a matter of national importance that early steps should be taken, not only to add to the efficiency of these barriers against destructive inundations, but for the removal of all obstructions to the free and safe navigation of that great channel of trade and commerce. The District of Columbia under existing laws is not entitled to that representation in the national councils which from our earliest history has been uniformly accorded to each Territory established from time to time within our limits. It maintains peculiar relations to Congress, to whom the Constitution has granted the power of exercising exclusive legislation over the seat of Government. Our fellow-citizens residing in the District, whose interests are thus confided to the special guardianship of Congress, exceed in number the population of several of our Territories, and no just reason is perceived why a Delegate of their choice should not be admitted to a seat in the House of Representatives. No mode seems so appropriate and effectual of enabling them to make known their peculiar condition and wants and of securing the local legislation adapted to them. I therefore recommend the passage of a law authorizing the electors of the District of Columbia to choose a Delegate, to be allowed the same rights and privileges as a Delegate representing a Territory. The increasing enterprise and rapid progress of improvement in the District are highly gratifying, and I trust that the efforts of the municipal authorities to promote the prosperity of the national metropolis will receive the efficient and generous cooperation of Congress.