Shortly after this incident the _Active_ passed over some submerged object which she bumped heavily. Subsequent examination showed that some 15 feet of her bilge keel had been torn away. It was not conceivable that the object struck could have been submerged wreckage from any ship which had taken part in the action, no fighting having taken place in the vicinity, and it seemed possible that the _Active_ had struck an enemy submarine. At 11.30 P.M. the _Colossus_ also passed over some submerged object which was felt to scrape along the bottom of the ship. Subsequent examination showed damage to both starboard propeller blades. Again there is doubt as to what the obstruction could have been; it was certainly not wreckage from any ship that had been in action. At 2 A.M. on June 1st Vice-Admiral Sir Cecil Burney informed me that the _Marlborough_ could not maintain the Fleet speed of 17 knots any longer, on account of the stress on the bulkheads, and that she had been obliged to ease to 12 knots. I directed him to order the ship to proceed to the Tyne or Rosyth, passing south of the German mined area. Sir Cecil Burney called the light cruiser _Fearless_ alongside the _Marlborough_, and was transferred in her, with his Staff, to the _Revenge_, the _Fearless_ being then detached to escort the _Marlborough_. Some idea of the area covered by the different engagements which constituted the Battle of Jutland will be gathered from a consideration of the distances steamed by our ships during the operations. The Battle Cruisers steamed some 64 miles between 3.48 P.M., the time of opening fire, and 6.17 P.M. the time that the Battle Fleet commenced action, and a further distance of some 57 miles to 9 P.M., when the Fleet turned to the southward for the night. The Battle Fleet steamed some 47 miles between the commencement of their engagement with the High Sea Fleet and the turn to the southward at 9 P.M. The whole Fleet steamed some 85 miles during the period covered by the night action--9 P.M. to 2 A.M. At 2.47 A.M., as dawn was breaking, the Fleet altered course to north and formed single line ahead in the order--2nd Battle Squadron, 4th Battle Squadron, 1st Battle Squadron (less the 6th Division). The 5th Battle Squadron rejoined at 3.30 A.M. and took station ahead of the 2nd Battle Squadron.