Italy.
--The advices from Italy confirm the previous reports of the reactionary movement in that kingdom. Garibaldi is preparing to enter Venetia in the spring, and has just issued a brief address to the Italians, urging them to sustain the government of the King of Sardinia, and concludes by saying that the 5th of March, 1861, should see Victor Emanuel at the head of an army of half a million of men.