Ordering the man at the wheel to put the helm over, thus bringing the submarine directly astern of us, I informed the captain of the presence of the enemy. He immediately came on the bridge and proceeded to take all necessary steps to try and outrace the submarine. We were quite unarmed, so flight was our only chance. The chief engineer was summoned and told to raise all the steam he possibly could and drive the ship for all she was worth, and the extra speed that was very quickly attained was convincing proof of the way in which he and his staff carried out these orders. Almost immediately after sighting the submarine the captain ordered the wireless operator to send out the "S.O.S." call for help. This was promptly answered, and we were informed that assistance was being sent us with all possible speed. The captain, myself, the second officer (who was the captain's son), and the third officer were now on the upper bridge, anxiously watching our pursuer through the glasses. To our dismay we noticed that she was slowly but surely gaining on us. It was not until a quarter of nine that she first opened fire, this presumably being a warning shot, as it fell wide on our port side. The captain took heed of the summons, however; he merely smiled and gave orders to telephone down to the engineers to "keep her going" as hard as they could. A second warning shot was fired, falling clear of the ship on the starboard bow, but this also was unheeded. Those on the submarine, observing that our speed was increasing and that no notice was taken of their shots, evidently came to the conclusion that we were going to make a run for it, and forthwith they commenced to fire shell after shell at us. At first they tried to bring down the wireless apparatus, so as to prevent us from getting into communication with the patrol vessels, but this, as I have previously stated, we had already done, and were now in continuous communication with them, giving them our now rapidly-changing positions. Unfortunately for us, however, the patrols were some distance away, and there was not much chance of their being able to reach us for two to three hours. What would happen meanwhile was hard to say; certainly our chances of getting away from our pursuer looked very small indeed. II--"SHELLS WERE BURSTING AROUND OUR VESSEL"