The Sun. — 1857-11-28 (London, England)

THE EXPECTED CALCUTTA, BOMBAY, AND AUSTRALIAN MAILS.  We learn by telegram from Marseilles that the Peninsular and Oriental Company's mail packet Vectis, with the overland Calcutta, Bombay, and the missing Australian mails, left alta at 4 p.m. on Tuesday, and arrived at Marseilles at 10 a.m. on Friday. Having made a longer passage than anticipated, she was not in time for the mails to be forwarded by the regular train, but they were despatched by special train at noon of that day. It is not unlikely that the special train may have overtaken the regular express, and that the mails will arrive in Paris by five o'clock this morning. In that case they will come ou to Boulogne by special train, thence to Dover by special mail packet, and to London by special South-Eastern train, and will arrive at the General Post-office by three o'clock this afternoon. But it is feared the mails will not arrive in Paris before seven o'clock this morning, when fluty will come on to Boulogne by special train, and, arriving there about noon, will not reach London before five o'clock this afternoon. However, all that can be done by anticipation has been arranged by the General Post-office authorities to get these all important mails to London in time to deliver the letters for the metropolis this evening, and to despatch the country portion by the evening mail trains. The mail-packet Prince Frederick William, after landing at Dover the extra China mail last night, started off again to Boulogne to fetch the Calcutta, Bombay, and Australian mails. It happens most unfortunately that there will be no water in Boulogne harbour at the time of the arrival of the mail there, but if theyreather should improve to-day the Prince Frederick William will go out into the roads at Boulogne, and, if practicable, will embark the heavy mails there, without waiting for the tide ; but should there bo too much swell of the sea on the bar she will not be able to bring the mails out before five o'clock, and then they cannot roach Loudon before about halfpast nine.  The Australian mails, per Simla, of the following dates—Sydney, October 11th, and Melbourne, October 16th, may be expected in Londou December the .6th.  THE ENGLISH ENGINEERS AT NAPLES,  We are glad to be able to state that despatches from Naples i bring intelligence of a more satit,factory nature n regard to the two English engineers who were made prisoners some months ago with the crew of the Cagliari ..steatner, when that vessel landedinsurgents on the Neapolitan coast. The Government has hitherto refused to allow any communication with the prisoners. Report said that they were ill-treated, and even that One of them had attempted to commit suicide. The English Government has made energetic ro. monstrauces on the subject, and the Neapolitan authorities have at last permitted the prisoners to be visited. Mr. Pugh, the chaplain of the mission, his seen them. He found them, with the captain of the steamer, confined in an airy room. The men had no complaints to make, and said they were sufficiently supplied with money by an agent of the steam-packet company in whose employment they are. For the future, the British Vice-Consul will be allowed access to them. lie has engaged counsel in their behalf, and it is hoped that legal forms cannot much longer delay their trial and l. Morning Post.