On the 23rd, both the French and the Americans opened their trenches; and on the 24th, a small detachment of the besieged made a sortie against the French. The attack was easily repulsed, but the French pursuing, approached so near the entrenchments of the enemy that they were fired upon and several were killed. On the night of the 27th another sortie was made which threw the besiegers into some confusion and caused the French and Americans to fire upon each other. Cannonading continued with but little result until October 8th. The engineers were now of the opinion that a speedy reduction of the city could not be accomplished by regular approaches; and the naval officers were very anxious about the fleet, both because of the dangers to which it was exposed from the sea, and also because with so many men ashore it was in especial danger of being attacked and captured by British men-of-war. These representations agreeing altogether with D'Estaing's previously expressed wishes to leave the coast as soon as possible, induced that officer and General Lincoln to decide upon an attempt to storm the British works at once. It is quite probable that this had been the purpose as a last resort from the first. The preservation of the fleet was, however, the powerful factor in determining the time and character of the assault upon Savannah. On the night of the eighth, Major L'Enfant, with a detachment attempted to set fire to the abattis in order to clear the way for the assault, but failed to through the dampness of the wood. The plan of the assault may be quite accurately obtained from the orders given to the American troops on the evening of the 8th by General Lincoln and from the inferences to be drawn from the events of the morning of the 9th as they are recorded in history. At least two of the historians who have left us accounts of the seige, Ramsey and McCall, were present at the time, and their accounts may be regarded as original authority. General Lincoln's orders were as follows: "Evening Orders. By General Lincoln. Watchword--Lewis. "The soldiers will be immediately supplied with 40 rounds of cartridges, a spare flint, and have their arms in good order. The infantry destined for the attack of Savannah will be divided into two bodies; first composed of the light troops under the command of Colonel Laurens; the second, of the continental battalions and the first battalion of the Charleston militia, except the grenadiers, who are to join the light troops. The whole will parade at 1 o'clock, near the left of the line, and march by platoons. The guards of the camp will be formed of the invalids, and be charged to keep the fires as usual in camp.