The troops detached for this service amounted to eleven hundred men--ten companies of musket-men from New England, and three companies of rifle-men from Virginia and Pennsylvania. The field officers were Colonel Arnold, Lieutenant-colonels Greene and Enos, and Majors Bigelow and Meigs. The afterwards-celebrated Daniel Morgan commanded the riflemen. On the 18th of September, the troops sailed from Newburyport, and rendezvoused at Fort Western, on the Kennebec, opposite the present town of Augusta. From this point they started, and their hardships and trials began. No body of troops during the Revolutionary war, if indeed in the annals of warfare, encountered greater obstacles, or endured more suffering, than this. The distance traversed was about two hundred miles, and nearly the whole of it was a howling wilderness. [Illustration: Arnold's Expedition through the Wilderness.] On the night of the 14th, Arnold with his men crossed the St. Lawrence; and, ascending the same abrupt precipice which Wolfe had climbed before him, formed his small corps on the heights, near the memorable Plains of Abraham. But he soon discovered that neither the number nor condition of his men would justify him in hazarding an action. Having spent a few days on the heights, and summoned the town to surrender, without even a response, he retired twenty miles above Quebec, to wait the arrival of the troops which were to proceed by the western route, which were now led by General Montgomery, who had succeeded General Schuyler, in consequence of the illness of the latter. On the 1st of December, Montgomery joined Arnold; and on the morning of the 31st occurred the memorable assault upon Quebec, in which the gallant and lamented Montgomery fell. Arnold, not less bold and intrepid, had his leg-bone severely fractured, and was obliged to be carried from the ground. The issue was disastrous to the Americans, as is well known; about sixty being killed, and between three and four hundred taken prisoners. Notwithstanding his wound and the serious diminution of his force, Arnold maintained a blockade of the city during a long and severe Canadian winter. As a reward for his persevering efforts in conducting his troops through the wilderness, and for his gallant conduct in the assault of Quebec, congress promoted Arnold to the rank of brigadier-general. [Illustration: General Lincoln.]