Sterling Price would never have invaded the State of Missouri in the fall of 1864, had it not been to give all the aid and assistance the rebellion could afford, to the conspiracy just then ready to break loose, and this explains the position that Hood occupied for nearly two months in Northern Georgia, Alabama and Tennessee. He would never have placed himself in such a position, had it not been deemed absolutely necessary by the Richmond Government, that his army should be placed where upon the breaking out of the conspiracy he could exercise a great influence over its prospects of success. To further the objects and views just stated, Jacob Thompson, of Miss., formerly Secretary of the Interior under Buchanan's administration, was made a secret agent for the Rebel Government in the Canadas, and two hundred and fifty or three hundred thousand dollars in specie, or its equivalent, was placed in his hands by the Rebel Government, for the purpose of arming and equipping any expedition he might place on foot from British America, for the injury of the inland or ocean commerce of the United States, or harrassing its Northern borders, and particularly for the release of the Rebel prisoners of war at Camp Douglas and Johnston Island, and from the beginning of Mr. Thompson's services in Canada, we may date all the regularly organized and officered expeditions from British America against the United States. Chief of all these expeditions were the two attempts, during last year, to release the prisoners of war at Camp Douglas, near Chicago, Ill., and the two different attempts to capture the steamer "Michigan" (a United States vessel of war stationed on Lake Erie, carrying eighteen guns), and release the prisoners on Johnston's Island. All four of these expeditions failed totally in the objects for which they were organized, mainly by some friendly parties having put the military authorities on their guard soon enough to enable them to defeat the attempts, and in some instances to capture the parties concerned in them.