EXTRACTS FROM LAST MAIL.

The festivities consequent upon the visit of the Prince and Princess of Wales to Dublin reached their climax when, in the venerable and ancient cathedral of the city, his Royal Highness was installed Knight Companion of the Most Illustrious Order of the Patron Saint of Ireland. The weather wjis extremely fine, and the outdoor processions were viewed with great interest by vast crowds of the populace, who loudly cheered the Royal visitors and the leading nobility. The pageant within tiie sacred fane was gorgeous in the extreme, rite warmth and cordiality with which the h'oval party have been received have been reiterated wherever they appeared. The Royal party left Dublin at six o'clock on the 24th of April, when the Prince entertained the LordLieutenant and a distinguished party on board > the royal yacht. The fleet was illuminated. The trial of the Fenians for the Clerkenwell explosion has been concluded. The case of alibi set up by Barrett signally failed, and the jury returned a verdict of guilty against him and acquitted the other prisoners. Barrett delivered a long address when the usual question was put previous to passing sentence, after which the Lord Chief Justice condemned him to be hanged. The prisoners acquitted are William Desmond, Timothy Desmond, Nicholas English, John O'Keefe, and Ann Justice ; they were charged with the murders of six persons. Besides these, Burke, Casey, and Shaw are now ou trial for treason felony. Mr 11. Fetherstouhaugh, a deputy lieutenant of the County Westmeath, nephew of the Earl of Wicklow, and one of the wealthiest proprietors in Ireland, was shot dead near his residence by an unknown assassin on tho IZ th April. The assassin escaped in the darkness. The police are on his •track, but have as yet made no arrest. Mr Fetherstonhaugh was a strong supporter of the Government, and what is termed an 'active magistrate' on behalf of the Crown. The marriage of Prince Humbert, the heir presumptive of the King of Italy, with the Princess Margaret, his cousin, took place on the 22nd April at the Chapel Royal in Turin. King Victor Emmanuel, the Crown Prince Frederick William of Prussia, Prince Napoleon, and the Princess Marie Clotilde. and a great many Italian notables were present. Marshal Narvaez, the Prime Minister of Spain, died on the morning of the 23rd of April. The deceased was in his 68th year. The Empress of Austria has given birth to a Princess, at Buda. Her Majesty is doing well. The treaty of commerce between England and Austria has been signed. The hostility which has for a long time existed between Baron von Budberg, the Russian Ambassador at Paris, and Baron Meyendorf, who formerly held the same position, culminated in a duel. The affair occurred at a secluded spot near Munich, Bavaria. At the first fire Baron von Budberg fell severely but not fatally wounded. He immediately returned to Paris. The elevations to the peerage recommended by the Earl of Derby prior to his retirement from office have at last taken place. Sir Brook Bridges, M.P. for East Kent, becomes Baron Fitzwalter; Sir John Walsh, M.P., for Radnorshire, is transformed into Baron Ornathwaite, and Sir John Trollope, M.P., for South Lincolnshire, into Baron Kesteven. The same Gazette also announces the elevation of the Rev. W. O'Neill to the peerage as Baron O'Neill. The Newmarket Craven Race Meeting commenced on the 13th April. The Craven Stakes were won by Florence. The Free Handicap Sweepstakes were won by Silenus. The Sweepstakes of 50 sovereigns was taken by Turpin. The winners on the second day were Mr Merry's Parson, who won the sweepstakes of 100 sovereigns each; Earl, owned by the Marquis of Hastings, and Blue Gown, owned by Sir J. P. Hawley, who came in neck and neck, and divided the Biennial stakes; and Montagnard, owned by the Count de Lagrange, and H. Saville'sßlueskin, who also came in even, and divided the Suffolk Handicap stakes. The racing was very fine, and the closeness of the result created great excitement and enthusiasm. The Handicap Sweepstakes were wi n on the third day by Mr Fulke's bay colt Lymington (late Boreas). The Queen's stakes were won by Mr H. Chaplin's bay colt Blinkhoolie. The Bennington stakes of 50 sovereigns each were taken by Phoebus. The Port stakes, a sweeepstakes of 100 sovereigns each, were carried off by Mr Henry's Julius. A grand banquet was given at New York to Charles Dickens, by the Press of the United States, on the eve of his departure 'for Europe. Horace Greely presided, and nearly all the leading journals of the country were represented. Mr Dickens was highly eulogised in the speeches of the gentlemen present*. There were upwards of two hundred persons present. The cost of the Abyssinian war is estimated at £5,000,000. Of this amount a balance of £3,000,000 is to be met during the ensuing year as follows: First, by the addition of two pence to the rate of the income tax,which will realise nearly £2,ooo,ooo; second, by the issue of exchequer bills to the amount of £1,000,000; and third, by the application of the estimated surplus of £920,000. Thus the Minister estimates that he will have 700,000 or 800,000 pounds sterling more than he needs to meet the expense of the war. It is understood at Copenhagen that the Emperor of Russia has declined to interpose his good office-- as a mediator betweeu Denmark and Prussia for the settlement of the controversy concerning the Sehleswig provinces.