EXPEDITION AGAINST CANADA--Late in the summer General Montgomery, leading an army by way of Lake Champlain, captured St. John's and Montreal, and then appeared before Quebec. Here he was joined by Colonel Arnold with a crowd of half-famished men, who had ascended the Kennebec and then struck across the wilderness. _Attack upon Quebec_.--Their united force was less than one thousand effective men. Having besieged the city for three weeks it was at last decided to hazard an assault. In the midst of a terrible snow-storm they led their forces to the attack. Montgomery advancing along the river, lifting with his own hands at the huge blocks of ice, and struggling through the drifts, cheered on his men. As they rushed forward a rude blockhouse appeared through the blinding snow. Charging upon it, Montgomery fell at the first fire, and his followers, disheartened, fled. Arnold, mean while, approached the opposite side of the city. While bravely fighting he was severely wounded and borne to the rear. Morgan, his successor, pressed on the attack, but at last, unable either to retreat or advance against the tremendous odds, was forced to surrender. The remnant of the army, crouching behind mounds of snow and ice, maintained a blockade of the city until spring. At the approach of British reinforcements the Americans were glad to escape, leaving all Canada in the hands of England. * * * * * 1776. EVACUATION OF BOSTON (March 17).--Washington, in order to force the British to fight or run, sent a force to fortify Dorchester Heights by night. In the morning the English were once more astonished by seeing intrenchments which overlooked the city. A storm prevented an immediate attack; a delay which was well improved by the provincials. General Howe, who was then in command, remembering the lesson of Bunker Hill, decided to leave, and accordingly set sail for Halifax with his army, fleet, and many loyalists. The next day Washington entered Boston amid great rejoicing. For eleven months the inhabitants had endured the horrors of a siege and the insolence of the enemy. Their houses had been pillaged, their shops rifled, and their churches profaned.