The town being built on the declivity of that high tract of land called Cape Spartel (the Cape Cottes or Ampelusian of theancients), it is seen at a great distance; but on entering the bay, it appears to the best advantage. It is defended by two martello towers, a castle, and a large battery; but I am confident that it could not with stand the attack of a few English frigates, and that such a f…