About half-past eight o'clock an express was sent by Archdeacon Markham to the Mayor of Leeds, informing him that the Minster was on fire, and requesting that two of the largest engines belonging to that town might be sent off immediately. This was shortly followed by another express from Mr. Newman, the actuary of the Yorkshire Fire Office, requesting that two more engines might be immediately forwarded to York. At this period serious fears were entertained that the fire would extend over the whole of this immense fabric; the flames were rapidly gaining ground at the east end, and the engines had not the least effect in allaying their progress. The lantern tower, and the whole of the roof of the nave appeared to be saturated with smoke, which also poured out of the windows of the western towers. The knotted rope having been discovered by which Martin made his escape, and not satisfactorily accounted for, and its being rumoured that a bunch of matches had also been found which had been lighted at both ends, the opinion that the fire was not caused by the gas, or by candles being left in the organ-loft or in the clergymen's robing-room, which had at first been entertained, began to give way to the idea that this was the work of an incendiary; and when the smoke was seen issuing from the places we have mentioned, it was at once said that a train had been laid, and that it was breaking out in different places. This, providentially, was not the case; the smoke penetrating the roof, &c., was merely occasioned by the denseness of the volume of vapour collected in the church before the doors were opened, and which at last found vent in that manner; and the fire never extended beyond the lantern tower. At ten minutes past nine a portion of the burning roof fell in with a tremendous crash. For an instant the whole area was illuminated, and the next moment a volume of smoke and ashes was sent forth which involved for a short time everything in darkness and obscurity. From that time till half-past ten portions of the roof kept falling in, till from the lantern tower to the east window the blue vault of heaven was the only canopy. The molten lead from the roof during this period poured down in torrents. Soon after ten o'clock an engine arrived from Escrick Park, near York, the seat of Paul Beilby Thompson, Esq., M.P. That no time might be lost, that gentleman's beautiful grey carriage horses were yoked to his engine, and it was driven into the city with the utmost promptitude. About half-past ten another engine arrived from Tadcaster, and was immediately got to work. One of these engines was brought to the east end, and played into the choir through an aperture made in the lower department of the window; another also played for a short time through the farthest window at the north-east end.