POSTSCRIPT.
SATURDAY.
The New York packet-ship Siddons, which arrived y t sterday at Liverpool, brings American papers to the '2d of January. The civil war in Upper Canada is assuming a more formidable appears nce. The Americans are giving MACKENZIE effective assistam e. From Rochester (about thirty miles from Niagara) as well i s Buffalo, volunteers are sent with arms and ammunition to Navy Jellied; where, according to the last accounts, about 800 men were, well turned. The insurgents have erected furnaces for making red-hot balls. Governor HEAD assembled a considerable force of Militia at Chippr wa, and an- nounced his determination to dislodge the insurgents !tom Navy Island at all risks. On this, it appears, three hundred r f his men laid down their arms. He made the attempt, however, oil the night of the '27th of December, but was driven back with lose : one boat filled with his men was sunk. Such is the seen, nt in the Rochester Telegraph. The insurgents have announced, that if any more expeditions are sent from Chippewa, they will bt mbard that town, which their cannon can reach. Dr. DUNCOMBE is till at the bead of a considerable number of insurgents. There was s Igo a force collecting opposite Detroit, which lies far to the West, it, a quarter where there was no previous rising. Governor HEAD had applied to the Governor of the State of New York to deliver up XIACKENZIE as "a felon, who had robbed the mail." The reply was, that the charge grew out of the greater one of high treason, in which the an liorities of the United States could not interfere. It is said that a stn ng body of Indians have joined a party of insurgents in Oakland. Biantford is mentioned as a village occupied by the insurgents.
The Philadelphia correspondent of the Morning Chi nick, who ridiculed the notion that the Canadians would find symp, thy in the United States, now writes that the "disposition to interline in favour of the Canadians is gaining ground." There was a large meeting of the inhabitants of New York on the 28th December ; at which Mr. Callaghan, late editor of the Montreal Vindicator, deliver id a vehe- ment harangue.