The 1st Light Cruiser Squadron from Rosyth, the 4th Light Cruiser Squadron from Scapa, and seven destroyers carried out a search between the 16th and 18th for enemy vessels in the northern and central portion of the North Sea, sweeping towards the Skagerrak, and covering a large area by wide zigzags. The _Iron Duke_ returned to Scapa from Cromarty on the 16th. From the 18th to the 21st the _Lion_, with the 1st Battle Cruiser Squadron and 2nd Light Cruiser Squadron, was cruising in the North Sea and carrying out exercises off the Shetland Islands, proceeding to Scapa for practices on the 21st, and returning to Rosyth on the 23rd. On August 18th the Fleet mine-sweeper _Lilac_, Lieut.-Commander Leslie Fisher, while at work on the Moray Firth mine-field, struck a mine. The whole fore part of the ship was destroyed and the wreck of it hung down from the after part, causing her to draw 30 feet of water forward, instead of the usual nine to ten feet. The weather was very bad and a heavy sea running, but by great persistence and good seamanship, aided by very gallant work on the part of her own crew and that of the _Hollyhock_, Captain Preston, senior officer of Fleet mine-sweepers, who was in command of the _Hollyhock_, succeeded in towing her to Peterhead. She was eventually reconstructed and rejoined the Fleet mine-sweeping flotillas. The value of this class of vessel was clearly shown by the incident. Eight destroyers from Scapa, with a flotilla leader, were carrying out on August 23rd and 24th anti-submarine operations in the Fair Island Channel, and a division was similarly employed east of May Island, in the Firth of Forth. Between August 24th and 26th the 3rd and 7th Cruiser Squadrons exchanged bases, between Scapa and Rosyth, carrying out a wide search of the North Sea _en route_, destroyers screening the ships by day. On the 24th Rear-Admiral E. F. A. Gaunt, C.M.G., relieved Rear-Admiral Hugh Evan-Thomas in the 1st Battle Squadron, the latter officer being designated to take command of the new 5th Battle Squadron (five ships of the “Queen Elizabeth” class), as it was formed. On August 30th–31st the 3rd Light Cruiser Squadron, with destroyers, searched to the eastward of May Island for enemy vessels; and from August 31 to September 1st the 2nd Light Cruiser Squadron, accompanied by four destroyers, was cruising between the Firth of Forth and the Dogger Bank for the same purpose. During the month the 2nd and 4th Battle Squadrons carried out target practice in the Moray Firth, and all battle squadrons and cruiser squadrons proceeded to sea for cruises, independently, from their bases, screened by destroyers. His Royal Highness the Prince of Wales visited Sir Stanley Colville at Longhope during the month, remaining for six days. He went on board many of the ships of the Grand Fleet.