Telegraphic dispatches.
New Orleans, April 24
--The war fever here is raging intensely, as it is also in all parts of the State, and in Alabama, Mississippi, Texas and Georgia, and other cities and towns in the Confederate States.
Business here is well nigh suspended.--There are few ships here, and these get high figures for freights, especially British bottoms, which have the preference.
Exchange on London is down to 4 per cent premium.
Indianapolis, April 24.
--The extra session of the Legislature convenes to-day.
The old officers resigned, and new officers were elected without regard to party lines.
After the organization the Star- Spangled Banner, Red, White and Blue, and the Union forever, were sung.
The House then adjourned, and marched, headed by a band, to Camp Morton, to listen to an address to the soldiers by the Hon. S. A. Douglas.
A sufficient number of companies have been offered to form ten additional regiments.
Indiana can send to the field within one month 50,000 volunteers.
The Assembly will place the State upon a war footing at present, and establish a reserve guard of 10,000 men.
New York, April 24.
--The steamer Daylight is to sail with 250 recruits and volunteers.
The steamer Montgomery sailed this morning with the artillery of the eighth regiment.
The steamer Huntsville is being fitted into a gunboat.
The Monticello has taken ten-inch swivels on board, and is expected to sail this evening.
The Chesapeake sailed yesterday with provisions for Old Point Comfort.
The Parkersburg has sailed with the twenty-fifth regiment.
The eighth, thirteenth, twenty-eighth, and sixty-ninth regiments, nearly 3,000 strong, embarked yesterday afternoon for Annapolis, on the steamers Marion, Alabama and James Adger.
Van Buren, April 24.
--The Van Buren Press newspaper, the leading Union newspaper in Western Arkansas, to-day hoisted the Confederate flag over its office.
The United States troops at Fort Smith evacuated the post last night, and left for the Indian country.
The State troops now occupy the fort.
Trenton, April 24.
--Governor Olden has called for an extra session of the Legislature, to meet on Tuesday next.
New York, April 24.
--The steamship Persia, which was to have sailed to-day, has been detained until to- morrow, to carry out dispatches from Lord Lyons to the British government.
Among the passengers are Commodore Anlick, the Swedish minister, and the agents of New York, Pennsylvania and Massachusetts, who go to England to purchase arms for those States.
Newberryport, Mass, April 24.
--Caleb Cushing addressed the citizens this afternoon at a flag raising.
He said that he considered his duty to his country as paramount to every other consideration, and he was ready on the field of battle to live or die in defence of his native State or of the Union.
Chambersburg, April 24.
--The 7th and 8th regiments of Pennsylvania volunteers arrived here last night, and are comfortably quartered on Camps Irvine and Chambers.--The excitement here has subsided.
Families are arriving here from Washington and the South, via Frederick and Hagerstown, by every train.
Cincinnati, April 24.
--Ogilvie Byron Young was arrested last evening at the Spencer House, by the United States Marshal, on the charge of treason.
Important correspondence was found in his possession.
He will be examined before the United States Court to-morrow morning.
Providence, April 24.
--The second regiment, under Col. Putnam, sailed this afternoon for New York.
They number about 500 men, and carry with them a flag borne by the Rhode Island regiment during the Revolution.
Boston, April 24.
--The U. S. steam frigate Niagara, which returned to-day from her mission to Japan, with the embassy, has been ordered to proceed to New York.
Albany, April 24.
--The 79th Regiment of New York has received marching orders.
One hundred and thirty-four companies have been enrolled thus far.
Montreal, April 23.
--Numerous telegraphic dispatches have been received here ordering arms to the Northern States, Consul Giddings has arrived here.
Independence, Mo., April 22.
--It is thought Upper Missouri will soon have 20,000 men enrolled for the defence of her soil against all invaders.
Boston, April 26.
--The Government has purchased the steamers South Carolina and Massachusetts, of the Charleston line. 