On Sunday last, a person arrived in this town from Halifax, who left it the 29th of May, from whom we have collected the following authentic Advices, viz. — That a fleet of 35 sail of transports arrived in that harbour lately, from New-York, in pursuit of provisions, &c. under convoy of the pirate Frigate Tartar, of 28 guns; so destitute is Howe's army of every necessity of life — That 16 sail of transports (part of the above fleet) sailed from thence the beginning of May, for the Bay of Fundy, in quest of cattle, hay, &c. under convoy of the Scarborough, of 20 guns, and Brig Diligence,¹ of 12; the former now cruising at the eastward, and the latter entirely lost on Gannet Rock, in Nova-Scotia; so that the transports have now only the Vulture 14 gun sloop of war, to protect them from the rebel navy; and were chiefly at Annapolis [Royal] 17 days ago, taking in their Cargoes. — That the following pirate ships sailed from Halifax, some time since, on a cruize, all bound for the New-England coast, viz. the Greyhound, of 28 guns; the Diamond, of 32; the Scarborough, of 20; the Albany Philadelphia[-built] ship, of 18, and Dawson, in the Brig Hope, of 16; they are very poorly manned, and one-third of them by American sailors, whom they compel to enter their service.— That a French brig, from France, laden with cloath­ing, bound for this port, was sent in there by a british sea plunderer. — That a fleet of transports, consisting of 12 sail, with 200 invalids on board, and cloathing for 12,000 men, sailed in April last for Quebec, only one frigate to accompanythem— That 6 transport ships were preparing for sea, in order to take on board (to transport to New York) two companies of the 37th and two of the 14th; british regiments, and 200 of the marines, mostly invalids, to fill up the vacancies on board the british navy, at New-York. . . That the American prisoners, to the number of 200, confined on board the lord stanley prison-ship, in that harbour, are treated in the most barbarous and inhuman manner possible; and was it not for the kind interpositions of some of the inhabitants of Halifax, [the last win]ter, in [supplying th]em with [necessaries], numbers of them must inevitably have perished, they having but 4 british soldiers allowance for 6 of them (poor allowance indeed) and that thrown to them, as if to dogs; our navy-men and merchant­ men are considered on an equality of footing, and are treated more like. savages than christians, when they fall into the hands of perjured George's emissaries. . . . That the 2 cartels (one from this port, and the other from Portsmouth) are detained in that port, by order of the poor, simple, harm­ less George Collier, deputized commander of the british pirate fleet there; but on what account was not known: That the Rainbow man of war, of 44 guns, is fitting out with the greatest expedition, for sea, to cruise (they say) in Boston-bay: When she sails, there will not be a ship of war left in the harbour.— That Captain Sampson, late of the State brig Independence, was in good health and high Spirits, waiting to be exchanged, to take an­ other slap at the mighty navy of britain. . . . That a ship, called the Adamant, arrived there from London, the day our informant made his escape, in a very short passage; but what news she brought, he could not learn, only, that 3 days before her arrival, she parted company with 45 sail of store-ships, &c. bound to York, under convoy of one frigate. . . . That the Milford,of 28 guns, now on a cruise, commanded by Sir William Barnaby, has been careened lately, her sheathing taken off, and her bottom soaped and tallowed; she is painted very black, and is to serve as a [de]coy in our bay; to carry 200 men, if she can procurethem— That the Scarborough sloop of war, intends watering shortly, at the Cranberry Islands, where she has contracted (we learn) with one Jones, of Goldsboro' for 20 head ofcattle.— That upwards of 180 Americans, confined on board the prison-ship, in Halifax, have been innoculated for the small-pox, and have got over the sickness. . . . That the inoffensive George Dawson, com­ mander of the Hope brig, is endeavouring to get the·command of the Conti­ nental brig Cabot, taken and carried into that port, by the Milford.— That Henry Mowatt (well known at Casco-Bay) late commander of the Milford, has been tryed by a court-martial there, for behaving in a cowardly manner, last December, when in sight of the Alfred Continental Ship of War (com­manded by Captain John Paul Jones, Esq;) and her two prizes, charged with running from her, by his officers and men.—

We hear a privateer sloop belonging to Providence² has taken a brig of 14 guns, with about 50 soldiers, besides the crew, which we soon expect to hear the arrival of. She was one of the convoy to a small fleet bound to New-York with troops and stores, and ordered out of the fleet to take the above sloop, which first decoy'd her out of sight of the fleet, then stood about and attack'd her, and after an engagement of nine glasses carried her.³ The privateer arrived at Dartmouth last week with part of the prisoners, 17 of which arrived in town last Sunday, and were immediately convey'd on board the guard ship. The officers taken on board the above prize were put on board a vessel bound for France. One invoice found on board the above prize amounts we hear to ten thousand pounds sterling.

Tomorrow, at One o'Clock, Will be sold by Public Vendue, at the American Coffee House, The Ship Hayfield, with her Ballast, and Water on board, as she now lays at Tilestone's Wharf, with every Thing completely fitted for Sea. An Inventory may be seen in the hands of