The new exhibitions at the Theatre, Capel Street, on Monday evening, by Signor Belzoni, were uncommonly good. The first part of his performance, the Musical Glasses, commanded the greatest attention; his Hydraulics were elegant and various, and his feats of strength carrying men truly astonishing. But what created a considerable degree of sensible pleasure was the grand and fine attitudes he displayed from Le Brun. Upon the whole it is highly worthy of public attention.

A few days ago, Mr Barron, of Carrickbarron, committed to the county jail, John Fitzgerald, charged upon oath with aiding and abetting the system of the Caravats. There are also other accusations against this man, which we at present forbear to mention, as they are connected with names which it would be imprudent to divulge; but it is material to state, that he had about him a brass-locked and barrelled pistol, marked with the name of Cox, the maker. This instrument is now in the possession of Mr Barron, who is anxious that the circumstance should be generally known, as it may lead to further discoveries.

A British Officer writes from Messina – "I returned a few days ago from a trip to mount Etna, where I had been to see the effects of an eruption, which took place on the 20th. The preceding day we were all much surprised at seeing the streets of Messina covered with a quantity of fire ashes, something like gunpowder, which were driven by a strong south wind from the top of the mountain, a distance of 60 miles. It appears that these ashes are thrown up before an eruption of fire; they came to Messina in such quantities that it was unpleasant to walk the streets, especially against the wind. On the 28th, volumes of smoke and fire burst out from several craters, which the volcanic matter made for itself, about six miles above the village of Lingua Grassa; it is impossible for words to convey, or colours to paint the awful grandeur of this at once grand and terrific scene. Figure to yourself the highest mountain in Arran vomiting fire from a dozen of different places, and throwing up immense heaps of red-hot stones to the height of one thousand feet, attended with a terrific noise, like the roaring of many cannon. Conceive quantities of melted lava issuing from each crater, like metal from a furnace, and sweeping along with it forests, houses, and every obstacle, and you may have some faint idea of an eruption of mount Etna. I was not more than 500 yards from one of the craters, but some of the stones flying over my head, I was obliged to scamper off.