The steamers which navigate the Eastern coast from Marseilles to Cadiz and back again, are cheaper indeed in their fares, but by no means such good sea-boats; nor do they keep their time--the essence of business--with English regularity. They are foreign built, and worked by Spaniards and Frenchmen. They generally stop a day at Barcelona, Valencia, and other large towns, which gives them an opportunity to replenish coal, and to smuggle. A rapid traveller is also thus enabled to pay a flying visit to the cities on the seaboard; and thus those lively authors who comprehend foreign nations with an intuitive eagle-eyed glance, obtain materials for sundry octavos on the history, arts, sciences, literature, and genius of Spaniards. But as Mons. Feval remarks of some of his gifted countrymen, they have merely to scratch their head, according to the Horatian expression, and out come a number of volumes, ready bound in calf, as Minerva issued forth armed from the temple of Jupiter. [Sidenote: SPANISH ROADS.] The Mediterranean is a dangerous, deceitful sea, fair and false as Italia; the squalls are sudden and terrific; then the crews either curse the sacred name of God, or invoke St. Telmo, according as their notion may be. We have often been so caught when sailing on these perfidious waters in these foreign craft, and think, with the Spaniards, that escape is a miracle. The hilarity excited by witnessing the jabber, confusion, and lubber proceedings, went far to dispel all present apprehension, and future also. Some of our poor blue-jackets in case of a war may possibly escape the fate with which they are threatened in this French lake. But no wise man will ever go by sea when he can travel by land, nor is viewing Spain’s coasts with a telescope from the deck, and passing a few hours in a sea-port, a very satisfactory mode of becoming acquainted with the country.