** Arthur St. Clair was a native of Edinburgh, in Scotland. He was born in 1734, and came to America with Admiral Boscawen in 1759. He served in Canada in 1759 and 1760, as a lieutenant under General Wolfe, and, after the peace of 1763, was appointed to the command of Fort Ligonier, in Pennsylvania. In January, 1776, he AAras appointed a colonel in the Continental army, and was ordered to raise a regiment destined for service in Canada. Within six weeks from his appointment his regiment was on its march. He was appointed a brigadier in August of that year, and was an active participant in the engagements at Trenton and Princeton. In February, 1777, he received the appointment of major general, and on the 5th of June was ordered by General Schuyler to the command of Ticonderoga. He reached that post on the 12th, and found a garrison of two thousand men, badly equipped and very short of ammunition and stores. He was obliged to evacuate the post on the 5th of July following. In 1780 he was ordered to Rhode Island, but circumstances prevented him from going thither. When the allied armies marched toward Virginia, in 1781, to attack Cornwallis, St. Clair was directed to remain at Philadelphia with the recruits of the Pennsylvania line, for the protection of Congress. He was, however, soon afterward allowed to join the army, and reached Yorktown during the siege. From Yorktown he was sent with a considerable force to join Greene, which he did at Jacksonville, near Savannah. He resided in Pennsylvania after the peace; was elected to Congress in 1786, and was president of that body in 1787. Upon the erection of the Northwestern Territory into a government in 1788, he was appointed governor, which office he held until 1802. when Ohio was admitted as a state into the Union, and he declined an election to the post he had held. His military operations within his territory against the Indians were disastrous, and when he retired from office he was almost ruined in fortune. He made unsuccessful applications to Congress for the payment of certain claims, and finally died almost penniless, at Laurel Hill in Western Pennsylvania, Aug. 31,1818, aged 84 years. Outposts undefended.--Fort on Mount Independence.--Tardiness of Congress in supplying Men and Munitions 133St. Clair was an officer of acknowledged bravery and prudence, yet he was far from being an expert and skillful military leader. His self- reliance and his confidence in the valor and strength of those under him often caused him to be less vigilant than necessity demanded; and it was this fault, in connection with the weakness of the garrison, which gave Burgoyne his only advantage at Ticonderoga. He soon perceived, through the vigilance of his scouts, that St. Clair had neglected to secure those two important eminences, Mount Hope and Sugar Loaf Hill (Mount Defiance), and, instead of making a direct assault upon the fortress, the British general essayed to possess himself of these valuable points.