Tic garrison of sldi ferrlch, chiefly sailors $ oi the number. Tie fort has been demolished. The evacuation was not effected without some dlsssters. \ detachment oi the engineers corps vas surprised by the A2oers.on the road 10 Algiers. NO WARRIORS which were in advance were stepped, and the men massaered. The i9thregiment, which occupied fort on the sea shore, four leagues from the town, was attacked by 2Og0 iicdouifis, and, after some fight ing, forced 10 retreat to Algiers. The army has already lost from 5 to 5000 men, killed aud wounded, and the dys- enteIy is making 1a4ages among the land and sea forces.