The estimates for the support of the Navy and Marine Corps the ensuing fiscal year will be found to be $5,856,472.19, the estimates for the current year being $5,900,621.

The estimates for special objects under the control of this Department amount to $2,684,220.89, against $2,210,980 for the present year, the increase being occasioned by the additional mail service on the Pacific Coast and the construction of the dock in California, authorized at the last session of Congress, and some slight additions under the head of improvements and repairs in navy-yards, buildings, and machinery.  I deem it of much importance to a just economy and a correct understanding of naval expenditures that there should be an entire separation of the appropriations for the support of the naval service proper from those for permanent improvements at navy-yards and stations and from ocean steam mail service and other special objects assigned to the supervision of this Department.

The report of the Postmaster-General, herewith communicated, presents an interesting view of the progress, operations, and condition of his Department.

At the close of the last fiscal year the length of mail routes within the United States was 196,290 miles, the annual transportation thereon 53,272,252 miles, and the annual cost of such transportation $3,421,754.

The length of the foreign mail routes is estimated at 18,349 miles and the annual transportation thereon at 615,206 miles.  The annual cost of this service is $1,472,187, of which $448,937 are paid by the Post-Office Department and $1,023,250 are paid through the Navy Department.

The annual transportation within the United States, excluding the service in California and Oregon, which is now for the first time reported and embraced in the tabular statements of the Department, exceeds that of the preceding year 6,162,855 miles, at an increased cost of $547,110.

The whole number of post-offices in the United States on the 30th day of June last was 19,796.  There were 1,698 post-offices established and 256 discontinued during the year.

The gross revenues of the Department for the fiscal year, including the appropriations for the franked matter of Congress, of the Departments, and officers of Government, and excluding the foreign postages collected for and payable to the British post-office, amounted to $6,727,866.78.

The expenditures for the same period, excluding $20,599.49, paid under an award of the Auditor, in pursuance of a resolution of the last Congress, for mail service on the Ohio and Mississippi rivers in 1832 and 1833, and the amount paid to the British post-office for foreign postages collected for and payable to that office, amounted to $6,024,566.79, leaving a balance of revenue over the proper expenditures of the year of $703,299.99.

The receipts for postages during the year, excluding the foreign postages collected for and payable to the British post-office, amounted to $6,345,747.21, being an increase of $997,610.79, or 18.65 per cent, over the like receipts for the preceding year.