About 10 P.M.the British mail steamer arrived from St.Thomas.Sent a boat on board of her, and got English papers to the 1st November.

She brings intelligence of the enemy's steamer St.Jacinto, having boarded an English steam-packet, and taken out of her Messrs.

Slidell and Mason, who had been carried to the Havannah by the Nashville.

The English people will regard this as an insult to their flag, and in this way it may do us good.

Night clear; moon rising a little before eight.