Interesting from Fort Pickens.
President Davis sent sealed dispatches to Pensacola last week. The Columbus (Ga.) Sun learns from a volunteer, just from there, that the women and children had been removed by the State troops, and that "hot work" was expected soon. A letter in the Pensacola Observer, from the Warrington Navy-Yard, dated the 3d inst., says:‘ Lieut. Slemmer has had about forty men engaged in raising a sand battery about a quarter of a mile to the eastward of Fort Pickens on Santa Rosa Island, for the past two or three days.
’ The Wyandotte was engaged all day yesterday in conveying water to the United States ships outside.
Lieut.McNab of the Eufaula Rifles, being anxious to find out what Slemmer's men were doing on the Island, procured a boat and went over; he was placed under arrest by the authorities of Santa Rosa Island and sent to the Navy-Yard.
This morning the bay is as calm as a mirror — the sun shines in all his majesty-- "the stars and stripes" are afloat from the flag-staff on Fort Pickens and from the Wyandotte, which is now engaged in towing out the water tank to the ships. The St. Louis sloop-of-war, the frigate Sabine, and the United States steamer Brooklyn, are to be seen lying at anchor beyond the bar.
Ten O'clock, A. M.--Quite a crowd have passed with wheelbarrows, spades, shovels, &c., to work on the sand batteries in course of construction at the old and new light-houses, and on the beach opposite the village of Warrington.
The Mobile Register publishes the following information given it by an officer from Fort Morgan:
‘ Captain O' Hara is in command of Fort McRae. He has, by the most untiring efforts, placed it in a proper state of defence. The guns are all mounted, and his men well drilled as cannoneers. Capt. O' Hara and his men have worked night and day, and his efforts are worthy of the highest commendation.
’ Among other preparations and precautions, Capt. O' Hara warned the Wyandotte to keep further from his fort in her trips to and from the Navy-Yard.
Col. Forney, of the army of Alabama, is now in command of the forces at Pensacola and neighborhood, and his policy is to take Fort Pickens at all hazards. He has erected several batteries, and mounted 10 and 8-inch Columbiads, so as to command both Fort Pickens and the entrance to the harbor. The Brooklyn, Sabine and St. Louis are outside; the Brooklyn arrived with twenty 11-inch Columbiads; the other ships have very heavy guns.
There is now on his way to Mount Vernon, for trial by court-martial, a deserter from Captain Thom's company of Regulars.
