Two days were spent by the Americans in reconnoitring the enemy's works; and on the 28th of July the work of disembarking the troops began, under a heavy fire from the enemy's batteries. The "Warren" and one of the sloops-of-war endeavored to cover the landing party by attacking the batteries; and a spirited cannonade followed, in which the American flag-ship suffered seriously. At last all the militia, together with three hundred marines, were put on shore, and at once assaulted the batteries. They were opposed by about an equal number of well-drilled Scotch regulars, and the battle raged fiercely; the men-of-war in the river covering the advance of the troops by a spirited and well-directed fire. More than once the curving line of men rushed against the fiery front of the British ramparts, and recoiled, shattered by the deadly volleys of the Scotch veterans. Here and there, in the grass and weeds, the forms of dead men began to be seen. The pitiable spectacle of the wounded, painfully crawling to the rear, began to make the pulse of the bravest beat quicker. But the men of Massachusetts, responsive to the voices of their officers, re-formed their shattered ranks, and charged again and again, until at last, with a mighty cheer, they swept over the ramparts, driving the British out. Many of the enemy surrendered; more fled for shelter to the fort on the hill. The smoke and din of battle died away. There came a brief respite in the bloody strife. The Americans had won the first trick in the bloody game of war. Only a short pause followed; then the Americans moved upon the fort. But here they found themselves overmatched. Against the towering bastions of the fortress they might hurl themselves in vain. The enemy, safe behind its heavy parapets, could mow down their advancing ranks with a cool and deliberate fire. The assailants had already sacrificed more than a hundred men. Was it wise now to order an assault that might lead to the loss of twice that number? The hotheads cried out for the immediate storming of the fort; but cooler counsels prevailed, and a siege was decided upon. Trenches were dug, the guns in the outlying batteries were turned upon the fort, and the New Englanders sat down to wait until the enemy should be starved out or until re-enforcements might be brought from Boston. So for three weeks the combatants rested on their arms, glaring at each other over the tops of their breastworks, and now and then exchanging a shot or a casual volley, but doing little in the way of actual hostilities. Provisions were failing the British, and they began to feel that they were in a trap from which they could only emerge through a surrender, when suddenly the situation was changed, and the fortunes of war went against the Americans.