The report of the Secretary of the Navy shows an improvement in the number and efficiency of the naval force, without material increase in the expense of supporting it. This is due to the policy which has been adopted, and is being extended as fast as our material will admit, of using smaller vessels as cruisers on the several stations. By this means we have been enabled to occupy at once a larger extent of cruising grounds, to visit more frequently the ports where the presence of our flag is desirable, and generally to discharge more efficiently the appropriate duties of the Navy in time of peace, without exceeding the number of men or the expenditure authorized by law. During the past year the Navy has, in addition to its regular service, supplied the men and officers for the vessels of the Coast Survey, and has completed the surveys authorized by Congress of the isthmuses of Darien and Tehuantepec, and, under like authority, has sent out an expedition, completely furnished and equipped, to explore the unknown ocean of the north. The suggestions of the report as to the necessity for increasing and improving the materiel of the Navy, and the plan recommended for reducing the personnel of the service to a peace standard, by the gradual abolition of certain grades of officers, the reduction of others, and the employment of some in the service of the commercial marine, are well considered and deserve the thoughtful attention of Congress. I also recommend that all promotions in the Navy above the rank of captain be by selection instead of by seniority. This course will secure in the higher grades greater efficiency and hold out an incentive to young officers to improve themselves in the knowledge of their profession. The present cost of maintaining the Navy, its cost compared with that of the preceding year, and the estimates for the ensuing year are contained in the accompanying report of the Secretary of the Navy. The enlarged receipts of the Post-Office Department, as shown by the accompanying report of the Postmaster-General, exhibit a gratifying increase in that branch of the public service. It is the index of the growth of education and of the prosperity of the people, two elements highly conducive to the vigor and stability of republics. With a vast territory like ours, much of it sparsely populated, but all requiring the services of the mail, it is not at present to be expected that this Department can be made self-sustaining. But a gradual approach to this end from year to year is confidently relied on, and the day is not far distant when the Post-Office Department of the Government will prove a much greater blessing to the whole people than it is now.