SOUTHEND, ESSEX.—During a strong gale of wind from the S.W., and a heavy sea, at 11.30 A.M. on the 24th October the brig August, of Griefswold, Prussia, signalled for assistance, having lost her masts and anchors. The Boys of England Life-boat put off to her aid, and assisted to bring her into a safe position. She was bound from London to Newcastle in ballast, and had a crew, of seven men..