On the 28th of October Lieutenant Pemberton Billing returned to England to collect men and machines. A squadron of four Avros, with 80 horse-power Gnome engines, had already been formed at Manchester under Squadron Commander P. Shepherd. The four pilots were: Squadron Commander E. F. Briggs. Flight Commander J. T. Babington. Flight Lieutenant S. V. Sippe. Flight Sub-Lieutenant R. P. Cannon. [Illustration: Friedrichshafen Raid.] There were eleven air mechanics. The machines and stores were shipped at Southampton for Le Havre and arrived in Belfort by night on the 13th of November. When he reached Belfort, Squadron Commander Shepherd fell ill; moreover, the weather was bad, with a falling barometer and a strong easterly wind. At last, on Saturday, the 21st of November, conditions improved and the raid took place. At half-past nine in the morning the four machines were lined up on the western side of the aerodrome to undergo engine tests and bomb-release tests. They were then dispatched, at intervals of five minutes, Squadron Commander Briggs, on machine 873, being followed by Flight Commander Babington on machine 875, and Flight Lieutenant Sippe on machine 874. Sub-Lieutenant Cannon's machine failed to rise and broke its tail skid. The other three reached Friedrichshafen about noon, almost together, and wrought havoc on the Zeppelin works. Squadron Commander Briggs was brought down by machine-gun fire, which riddled his petrol tank. The other two returned in safety. Two accounts of this raid shall be quoted, one from the air, the other from the ground. Here is Flight Lieutenant Sippe's log: Attack on Friedrichshafen, 21st November 1914. '9.55 a.m. Left Belfort. Shaped course for Basle, following Nos. 873 and 875. 10.25 a.m. Arrived Basle, passed to north, observed No. 873 going away to south, overtook No. 875. No. 873 several miles to starboard. Followed Rhine at height of about 5,000 feet, keeping to north. 11 a.m. Above clouds in Rhine Valley. No. 873 passed across and took up position ahead and about a mile to port. Continued to Schaffhausen, when suddenly lost sight of 873. No. 875 about two miles astern and about same height. 11.30 a.m. Arrived extreme end of lake and came down to within 10 feet of water. Continued at this height over lake, passing Constance at a very low altitude, as considered less likelihood of being seen. Crossed lake and hugged north shore until five miles from objective. Started climb and reached 1,200 feet. Observed twelve or fourteen shrapnels bursting slightly north of Friedrichshafen. Presumed these were directed against No. 873.