As a result a force comprising three armed boarding-steamers and three destroyers was despatched from Scapa on June 26th to examine a fleet of neutral fishing vessels working to the south-eastward of the Pentland Firth and on the ordinary track of the Fleet when proceeding to sea. Six vessels were sent in for detailed examination, but nothing suspicious was found on board. The fishing fleet, however, shifted its ground to a position clear of the track of the Fleet. Operations against enemy submarines carried out by Grand Fleet forces during June included the following: _June 1st to 2nd._--A division of destroyers endeavoured, without success, to locate and attack a submarine 60 to 80 miles to the eastward of May Island. _June 4th to 5th._--Two destroyers and two sloops operated against a submarine, with a supposed tender, to the eastward of the Pentland Firth. _June 5th._--The armed trawler _Hawk_, of the Peterhead area, disabled submarine U 14 by gun fire and sank her by ramming at 7.30 A.M. in Lat. 57.15 N., Long. 0.32 E. One officer and 21 men were rescued. It was a fine exploit, typical of the consistently good work of the vessels of the Peterhead patrol; it was a success that was specially welcome at this time when submarines were very active in northern waters. There were many other engagements between auxiliary patrols and submarines during the month, but no other _certain_ successes. It was believed that at least one submarine was sunk in a deep mine-field which had been laid at my request off Tod Head on the Aberdeen coast. Appended are notes of further operations against the enemy’s under-water craft: _June 18th and 19th._--Anti-submarine operations by three destroyers and sloops were carried out in the Fair Island Channel. _June 20th._--Four destroyers were operating against submarines to the westward of the Orkneys. _June 21st and 22nd._--The _Botha_ and eight destroyers of the 1st Flotilla were operating against submarines in an area between Lat. 56.20 and 57.10 N. and Long. 1 E. to 1 W. _June 21st._--Four destroyers and six gunboats were operating to the east of the Pentland Firth against a submarine. _June 23rd._--Submarine U 40 was sunk 50 miles S.E. by S. of Girdle Ness at 9 A.M. by submarine C 24, working in company with a trawler. _June 23rd._--A division of destroyers was sent to operate against a submarine to westward of the Fair Island Channel. _June 24th–26th._--Three sloops were engaged in searching for a submarine to the eastward of Orkneys and Shetlands. _June 26th._--A large force, comprising 20 armed trawlers from Granton in the Firth of Forth, began to operate against submarines in an area round Lat. 57 N., Long. 1 E., remaining out until July 7th. Two armed trawlers, with C class submarines in company, were also operating to the southward of this position.