The report of the Postmaster-General presents an encouraging exhibit of the operations of the Post-Office Department during the year. The revenues of the past year, from the loyal States alone, exceeded the maximum annual receipts from all the States previous to the rebellion in the sum of $6,038,091; and the annual average increase of revenue during the last four years, compared with the revenues of the four years immediately preceding the rebellion, was $3,533,845. The revenues of the last fiscal year amounted to $14,556,158 and the expenditures to $13,694,728, leaving a surplus of receipts over expenditures of $861,430. Progress has been made in restoring the postal service in the Southern States. The views presented by the Postmaster-General against the policy of granting subsidies to the ocean mail steamship lines upon established routes and in favor of continuing the present system, which limits the compensation for ocean service to the postage earnings, are recommended to the careful consideration of Congress. It appears from the report of the Secretary of the Navy that while at the commencement of the present year there were in commission 530 vessels of all classes and descriptions, armed with 3,000 guns and manned by 51,000 men, the number of vessels at present in commission is 117, with 830 guns and 12,128 men. By this prompt reduction of the naval forces the expenses of the Government have been largely diminished, and a number of vessels purchased for naval purposes from the merchant marine have been returned to the peaceful pursuits of commerce. Since the suppression of active hostilities our foreign squadrons have been reestablished, and consist of vessels much more efficient than those employed on similar service previous to the rebellion. The suggestion for the enlargement of the navy-yards, and especially for the establishment of one in fresh water for ironclad vessels, is deserving of consideration, as is also the recommendation for a different location and more ample grounds for the Naval Academy.