[Illustration: THE SIEGE OF TOULON, 1793, from "L'Histoire de France depuis la Revolution de 1789," by Emmanuel Toulougeon, Paris, An. XII. [1803]. A. Fort Mulgrave. A'. Promontory of L'Eguillette. 1 and 2. Batteries. 3. Battery "Hommes sans Peur." The black and shaded rectangles are the Republican and Allied positions respectively.] Even before the arrival of Bonaparte the difficulties of defence were very great. A British naval officer wrote on the 14th to Lord St. Helens, British ambassador at Madrid, that the situation of the little garrison was very critical owing to daily attacks from the 5,000 French at Ollioules and the same number on the eastern side. The Allies, he added, could not wholly trust the French royalists serving with them, and they were glad to send away on four French sail-of-the-line some 6,000 French sailors who had bargained to be landed on the Biscay coast. Having only 1,570 British and 3,460 Spaniards, they could scarcely man the ramparts and forts, several of which, especially those on Mount Faron, were not nearly ready. The houses of the town were far too near to the ramparts; but the Allies dared not demolish them until reinforcements arrived. Fortunately the Spanish Admiral, Gravina, was alert, intelligent, and trustworthy; and Piedmontese were known to be advancing over the Maritime Alps into the county of Nice. Part of Hood's fleet was engaged in intercepting the supplies and stores destined for the Republicans.[247] The letter brings out vividly the perils of the garrison, which must have evacuated Toulon had not reinforcements speedily arrived. On 26th September Hood wrote that the Allies were kept in perpetual alarm by the French batteries, which must be kept under at all risks, until more troops arrived.[248] Fortunately the foresight of Pitt and Grenville had provided the means of backing up operations in the Mediterranean. Apart from the treaty with Sardinia, there was a compact with Naples, whereby that Court promised a force of 6,000 men and 12 warships, the naval expenses being borne by England.[249] By 5th October 1,350 Sardinian and 4,000 Neapolitan troops arrived, thus enabling the garrison to hold up against the ever increasing forces of the Republicans. On the other hand, the fall of Lyons on 9th October set free large numbers who were available for service at Toulon. Consequently the troops and seamen of the Allies were persistently overworked, so that Hood was constrained to hire 1,500 Maltese seamen, to take the place of those serving the batteries. At first only 750 British troops could be spared from Gibraltar; but by the end of October, when further help was at hand, the allied forces (rank and file) stood as follows: