The architect of Berlin appears to have carefully designed his plan according to line and rule in order to produce a capital of dullness as far removed from the picturesque as his ingenuity could accomplish. Seen from the cathedral, which is the loftiest point attainable, the place suggests an enormous chess-board on which the Royal Palace, the Museum, Cathedral, and other important buildings fairly represent kings, queens, and castles. And, much as Paris is intersected by the Seine, so is Berlin divided by the Spree, except that instead of surrounding one island, as does the former river, two artificial canals branch out right and left like the handles of a vase, and form two islands of unequal size in the centre of the town. Berlin being the capital of Privilege, one of these islands is distinguished by possessing the Royal Palace, the Cathedral, the Museum, the Bourse, most other public buildings, and a score of houses which in Turin, the Berlin of Italy, would certainly be called palaces; the other contains nothing remarkable, corresponding to the Parisian Rue Saint-Jacques and the quarter Saint-André-des-Arts. The aristocratic, the smart Berlin lies to the right and left of the Friedrich Strasse, which extends from the Place de La Belle Alliance by which one enters Berlin to that of Oranienburg by which one leaves it, and which is crossed nearly in the middle by the Unter den Linden. This famous promenade traverses the fashionable quarter and extends from the Royal Palace to the Place d'Armes. It owes its name to two rows of magnificent lime trees which form a charming promenade on each side of the broad carriage-way. Both sides abound in cafés and restaurants, whose crowds of customers, overflowing in summer on to the public road, cause a considerable amount of lively motion. This, however, never rises into noisy horse-play or clamour, for the Prussian prefers to amuse himself _sub rosa_, and keeps his gaiety within doors. But on June 7th, 1866, as beautiful a day as Prussia can produce, Unter den Linden, at about six in the evening, presented a scene of most unusual commotion. The excitement was caused in the first place by the increasingly hostile attitude assumed by Prussia towards Austria, in refusing to allow the States of Holstein to proceed to the election of the Duke of Augustenburg, also by the general arming on all sides, by reports concerning the immediate calling up of the Landwehr and the dissolution of the Chamber, and finally by rumours of telegrams from France containing threats against Prussia, said to have been made by Louis Napoleon himself.