From Montgomery.
[special Correspondence of the Dispatch.]
Montgomery, Ala., May 9, 1861.
The aggregate of the expenditures estimated for by the Secretary of War in his report to Congress for the year ending February 18th, 1862, will be ascertained, as soon as secrecy is removed, to amount to nearly forty millions.
This large estimate contemplates a thorough organization and complete equipment of an army sufficiently powerful for both successful defence and victorious invasion.
Ways and means for supplying the Government with the above sum, and schemes for buying and producing the amount that may be necessary to defray the expenses of maintaining independence and repelling invasion, are now receiving the special attention of Congress.
The practical union with the Confederate States, of Virginia, Arkansas, Tennessee and North Carolina, an Empire in themselves, has added strength to strength and influence to power, and will enable the Government on very short notice to supply its Treasury with any sum of money, however vast, that may be deemed requisite to assist in protecting the honor and independence of the States against the disgrace and subjugation that are thundered in their ears by a united and bloodthirsty North.
Considerable time will be consumed by Congress in an examination and digest of the reports of the Secretaries of the different Departments — especially the measures and suggestions presented by the War and Treasury.
The official account and statement of the Treasury will contain many items of financial interest.
The Secretary has appointed a number of revenue officers, and created numerous ports of entry, since the last session of Congress.
Their particulars, as well as the manner in which he has disbursed the revenue of the Government, and its amount, will be of great public importance.
At the revenue stations, this indefatigable ‘"guardian and watch-dog of the Treasury"’--soubriquets quite familiar to the last Gubernatorial campaign in Virginia — has had special agents engaged in investigating the operations of each, with the object in view of ascertaining what excrescences, if any, must be lopped off, and what officers discontinued as superfluous.
Nothing can escape his Argus-like vision.
His efforts to ‘"stop the beginnings"’ have been so persevered in that a leak as large as a pin head is nowhere to be found.
And could the Government secure his valuable services to guard and direct its Treasury during the term of his life, what Dr. Johnson remarked of the miser would become much more than poetry in its application to the watchful Secretary:
‘"He views his coffers with suspicious eyes, Unlocks his gold, and counts it till he dies."’
Messrs. Brockenborough and Staples arrived in this city two or three days ago. The admission of Virginia into the Government was transacted in secret session, but soon afterwards made public.
Her representatives have been sworn in, and are participating in the proceedings of Congress.
They have been urging, it is said with much force, the removal of the Government to Richmond, and this morning the Secretary of the Treasury told an officers in his Department that he entertained little doubt of an early change of residence.
There are about 375 applicants for letters of marque and reprisal on file in the War Department.
Dispatches have also been received in this city showing that large numbers of privateers are fitting out at various points — all to be well armed and manned.
Some are already said to be cruising along the Atlantic coast.
In three weeks from this time our privateersmen will infest almost every sea, and the merchant ships that sails under the degraded ‘"Stars and Stripes"’ will be made to strike her Black Republican colors, and surrender her treasures to the brave militia of the ocean.
A number of troops are said to be on their way to this place, whose ultimate destination will be Pensacola.
Also, that a Rifle Regiment composed of ‘"crack men"’ is now organizing to go to Virginia.
Among the distinguished visitors in Montgomery at the present time is Mr. Russell, the far-famed correspondent of the London Times.
Gen. Beauregard has been here for some days, but left, I learn, this morning for Charleston.
Mrs. Davis holds frequent levees at the White House, from the hours of one to three.
They are fashionably and numerously attended.
Montgomery. 