On the night of Tuesday (Aug. 10th) a great fire broke out at Varna, which utterly destroyed more than a quarter of the town. The sailors of the ships, and the French and English soldiery stationed near the town, worked for the ten hours during which the fire lasted with the greatest energy; but as a brisk wind prevailed, which fanned the flames as they leapt along the wooden streets, their efforts were not as successful as they deserved. The fire broke out near the French commissariat stores, in a spirit shop. The officers in charge broached many casks of spirits, and as the liquid ran down the streets, a Greek was seen to set fire to it. He was cut down to the chin by a French officer, and fell into the fiery torrent. The howling of the inhabitants, the yells of the Turks, the clamour of the women, children, dogs, and horses, were appalling. Marshal St. Arnaud displayed great vigour and coolness in superintending the operations of the troops, and by his exertions aggravated the symptoms of the malady from which he had long been suffering. The French lost great quantities of provisions, and we had many thousand rations of biscuit utterly consumed. In addition to the bread (biscuit) which was lost, immense quantities of stores were destroyed. 19,000 pairs of soldiers' shoes and an immense quantity of cavalry sabres, which were found amid the ruins, fused into the most fantastic shapes, were burnt. The soldiers plundered a good deal, and outrages of a grave character were attributed to the Zouaves during the fire. Tongues and potted meats, most probably abstracted from sutlers' stores, were to be had in the outskirts of the camp for very little money soon after the occurrence, and some of the camp canteen keepers were completely ruined by their losses. To add to our misfortunes, the cholera broke out in the fleets in Varna Bay and at Baltschik with extraordinary virulence. The _Friedland_ and _Montebello_ suffered in particular--in the latter upwards of 100 died in twenty-four hours. The depression of the army was increased by this event. They "supped full of horrors," and listened greedily to tales of death, which served to weaken and terrify.