The intelligent English traveller, in this fortunate age for him, is aware that, half-way between Boulogne and Paris, there is a complex railway-station, into which his train, in its relaxing speed, rolls him with many more than the average number of bangs and bumps prepared, in the access of every important French gare, to startle the drowsy or distrait passenger into a sense of his situation. He probably also remembers that at this halting-place in mid-journey there is a well-served buffet, at which he has the privilege of "Dix minutes d'arret." He is not, however, always so distinctly conscious that these ten minutes of arrest are granted to him within not so many minutes' walk of the central square of a city which was once the Venice of France.