Nevertheless, the Naval Air Service carried on. Two attacks were made on the airship sheds at Duesseldorf and Cologne. The earlier of these was made on the 22nd of September by four aeroplanes, two for each place. There was a thick mist extending from the river Roer to some miles east of the Rhine, and only Flight Lieutenant Collet succeeded in finding his objective. He glided down at Duesseldorf from a height of 6,000 feet, the last 1,500 feet through the mist, and came in sight of the shed when he was a quarter of a mile from it at a height of 400 feet. One of his bombs fell short; the others probably hit the shed, but failed to explode. Germans ran in all directions. All four machines were back in Antwerp by one o'clock in the afternoon. The second and more successful attack was made on the 8th of October, during the evacuation of Antwerp. Antwerp was being bombarded, the panic-stricken retreat of the population had begun, but the Naval Air Service stuck to its aerodrome, and carried out the first notable air-raid of the war. On the 7th of October the machines at Antwerp had been taken out of their shed and planted in the middle of the aerodrome, to avoid damage by splinters if the shed should be hit by a shell. On the forenoon of the 8th the weather was misty, so Squadron Commander Spenser Grey and Flight Lieutenant Marix spent the time in tuning up their Sopwith Tabloid machines. In the afternoon there was no improvement in the weather, but if an attack was to be made from Antwerp it was important to start, for the Germans were about to enter the city. Flight Lieutenant Marix, starting at 1.30 p.m., flew to Duesseldorf, dived at the shed, and let go his bombs at a height of 600 feet. The destruction was complete. The roof fell in within thirty seconds and flames rose to a height of 500 feet, showing that an inflated Zeppelin must have been inside. The aeroplane was damaged by a heavy rifle- and shell-fire, but Lieutenant Marix managed to get back to within twenty miles of Antwerp, and to return to the city by the aid of a bicycle which he borrowed from a peasant. Squadron Commander Spenser Grey, starting at 1.20 p.m., flew to Cologne, where he found a thick mist and failed to locate the airship sheds. He dropped his bombs on the main railway station in the middle of the town, and got back to Antwerp at 4.45 p.m. At six o'clock the general evacuation of Antwerp was ordered, and the officers of the Naval Air Service succeeded in reaching Ostend by noon on the following day. The transport and stores had preceded them. Since the 3rd of October Wing Commander Samson's force had been employed in assisting the naval division at Antwerp. Some seventy motor omnibuses, taken off the streets of the cities of England, and driven by their civilian drivers, who made up in cheerfulness and skill for what they lacked in military science, had been employed to carry the stores of the naval division, and were escorted by the armoured cars.