This concentration at important centres was noticeable during the submarine campaign; in fact, but a few weeks later _Glen_ was again engaged with an enemy in the same vicinity. This was on June 25, the exact position was 14 miles S. by W. of St. Catherine’s Point, and the schooner was sailing close hauled on the starboard tack, heading S.W. by S., doing her 2 knots, when she sighted a vessel apparently under sail on her port quarter 4 miles distant. Presently this vessel fired at her, the shot falling 1,000 yards short. This, of course, was a submarine, and it was a not unusual thing to attempt disguise by this means; for obviously a low-lying craft on the surface viewed from a distance would create suspicion. But, parenthetically, it may be mentioned that this sail device was not always carried out with common sense, and I remember on one occasion a submarine giving himself hopelessly away by motoring at good speed in the eye of the wind with his sail of course shaking wildly. Such an unseamanlike act was at once spotted by the nearest patrol, and the submarine had to dive so hurriedly that she left the sail on the water. In the case of _Glen_ the recognition was obvious as soon as the first shot was fired. Several minutes later came another, which fell only 60 yards short, so _Glen_ hove-to and ‘abandoned’ ship, the enemy continuing to fire every few minutes, but the shots fell just over. Her seventh and eighth shots fell much closer, in fact so near that their splash flooded the schooner’s deck, and shell splinters struck the sails and bulwarks. _Glen_ then opened fire with both guns, but this was a more cautious submarine, who declined to approach nearer than 4,000 yards, fired three more rounds, then submerged and made off. The activity of the submarines during this week in the neighbourhood of Portland Bill was most noticeable. Submarines were also stationed in the western approaches of the English Channel. The reason for this is not hard to appreciate, for it was on June 26, the day after the above engagement, that the first contingent of U.S.A. troops landed in France on the western coast. Whether the transports would be bound up Channel to Cherbourg or Southampton, the enemy submarines were lying in wait ready for them. And it is significant that also on June 26 the Q-sailing-ship _Gaelic_ sighted a submarine at the western entrance of the English Channel and had a short duel with her.