Napoleon respectfully but firmly made his remonstrance to the Convention, assuring them that the siege must be conducted with far more science and energy if a successful result was to be expected. He recommended that the works against the city itself should be comparatively neglected, and that all the energies of the assaults should be directed against Little Gibraltar. That fort once taken, it was clear to his mind that the English fleet, exposed to a destructive fire, must immediately evacuate the harbor, and the town would no longer be defensible. In fact, he pursued precisely the course by which Washington had previously driven the British from Boston. The distinguished American general turned aside from the city itself, and by a masterly movement planted his batteries on Dorchester heights, from which he could rain down a perfect tempest of balls upon the decks of the English ships. The invaders were compelled to fly, and to take with them their Tory allies. Napoleon did the same thing at Toulon. The enterprise was, however, vastly more arduous, since the English had foreseen the importance of that port, and had surrounded it with works so unapproachable that they did not hesitate to call it their _Little Gibraltar_. Napoleon, then but twenty-three years of age, undertook their dislodgment. Dugommier, a scarred and war-worn veteran, was now placed in the supreme command, and cordially sympathized with his young artillery officer in all his plans. The agents of the Convention, who were in the camp as spies to report proceedings to the government, looked with much incredulity upon this strange way of capturing Toulon. One morning some of these commissioners ventured to criticise the direction of a gun which Napoleon was superintending. "Do you," he tartly replied, "attend to your duty as a national commissioner, and I will be answerable for mine with my head." Napoleon's younger brother, Louis, visited him during the siege. They walked out one morning to a place where an unavailing assault had been made by a portion of the army, and two hundred mangled bodies of Frenchmen were strewn over the ground. On beholding the slaughter which had taken place, Napoleon exclaimed, "All those men have been needlessly sacrificed. Had intelligence commanded here none of these lives need have been lost. Learn from this, my brother, how indispensable and imperatively necessary it is, that those should possess knowledge who aspire to assume the command over others."