Yesterday it was notified in this port, as well as at Naples, that arrivals from Marseilles would be, until further notice, subjected to a quarantine of fifteen days in consequence of cholera having made its appearance at the latter place.  A sailing vessel which arrived from Marseilles in the course of the day had to disembark the merchandise it brought for Civita Vecchia into barges off the lazaretto, where the yellow flag was hoisted over them.  This vessel left Marseilles five days before the announcement of the quarantine, while the ‘Prince Napoleon’ of Valery’s Company, passenger and merchandise steamer, which left Marseilles only one day before its announcement, was admitted this morning to free pratique.  Few travellers will come here by sea now.

Marseilles, July 24.

Accustomed as we have been of late in Italy to almost hourly bulletins of the progress of hostilities, it is a trying condition to be suddenly debarred of all intelligence by finding oneself on board a steamer for thirty-six hours without touching at any port, as was my case in coming here from Civita Vecchia on board the ‘Prince Napoleon.’  But, although telegrams were wanting, discussions on the course of events were rife on board among the passengers who had embarked at Naples and Civita Vecchia, comprising a strong batch of French and Belgian priests returning from a pilgrimage to Rome, well supplied with rosaries and chaplets blessed by the Pope and facsimiles of the chains of St. Peter.  Not much sympathy for the Italian cause was shown by these gentlemen or the few French and German travellers who, with three or four Neapolitans, formed the quarterdeck society; and our Corsican captain took no pains to hide his contempt at the dilatory proceedings of the Italian fleet at Ancona.  We know that the Prussian minister, M. d’Usedom, has been recently making strenuous remonstrances at Ferrara against the slowness with which the Italian naval and military forces were proceeding, while their allies, the Prussians, were already near the gates of Vienna; and the conversation of a Prussian gentleman on board our steamer, who was connected with that embassy, plainly indicated the disappointment felt at Berlin at the rather inefficacious nature of the diversion made in Venetia, and on the coast of Istria by the army and navy of Victor Emmanuel.  He even attributed to his minister an expression not very flattering either to the future prospects of Italy as resulting from her alliance with Prussia, or to the fidelity of the latter in carrying out the terms of it.  I do not know whether this gentleman intended his anecdote to be taken cum grano salis, but I certainly understood him to say that he had deplored to the minister the want of vigour and the absence of success accompanying the operations of the Italian allies of Prussia, when His Excellency replied:  ’C’est bien vrai.  Ils nous ont tromps; mais que voulez-vous y faire maintenant?  Nous aurons le temps de les faire egorger apres.’