In August, 1777, he relieved Fort Schuyler, then besieged by Col. St. Leger with, an army of near 1800 men. At the battle near Stillwater on the 19th September he fought like a tiger for four hours. After the British had been driven within their lines in the action of the 8th of October, Arnold pressed forward under a destructive fire and assaulted their works, forced their entrenchments and entered their lines with a handful of desperate followers and only retreated upon his horse being killed and himself severely wounded again in his unfortunate leg. For desperate bravery on the field of battle he had no superior. He seemed enchanted with danger and infatuated with military glory. But this was not his ruling passion. He was licentious, voluptuous, amorous and epicurean. The want of means to fully pamper these ruinous propensities, which had destroyed all sense of moral rectitude--solves the problem of his treason. Being disqualified by his wounds for field service he was put in command of the garrison at Philadelphia. He made the house of Gov. Penn his headquarters which he furnished in princely style and commenced a course of extravagant living and equipage far beyond his salary. To raise funds he laid violent hands upon all property belonging to those who did not enter fully into the cause of the patriots. He oppressed, extorted, used public money and properly for private purposes and made his public accounts more than duplicate. He rushed into unsuccessful trading speculations and made himself amenable to a series of grave charges and was summoned to appear before the commissioners of accounts who rejected more than half the amount of his charges against government. He appealed to Congress whose committee confirmed the report of the commissioners with the remark that Arnold had been allowed too much. So violent was his language and conduct towards his superiors that he was arraigned before a court-martial and sentenced to be reprimanded by Washington. This sentence was sanctioned by Congress and promptly executed. His mortification had now reached its zenith. He was bankrupt in means--his reputation wounded--his pride lacerated. He became surcharged with fell revenge--treason was the best panacea for that dark passion. He was quick to see that West Point would command the most money and inflict the deepest wound upon the cause of liberty. He suddenly professed deep repentance and applied to the New York delegation in Congress to obtain for him the command of that important post. Through Gen. Schuyler the same application was made to Washington who was anxious to have his services in the field but willing to comply with his wishes. Early in August, 1779, Arnold repaired to the camp of Washington and made the application in person without apparent anxiety, stating that his wounds disqualified him for field service. With full confidence in his fidelity he received the desired command.