The tubes extend from the upper deck of the ship to her keel, and slope aft to facilitate release. Having completed with fuel at Bruges, we took in a store of provisions and Alten went up to the Commodore's office to get our sailing orders. We sailed at 6 p.m. and at last I felt I was off. To-day, the 22nd, we are just north of the South Dogger, steering north-westerly at 9-1/2 knots. The sea is quite calm and everything is very pleasant. Our mission is to lay a small minefield off Newcastle in the East Coast war channel. I have, of course, never been to sea for any length of time in a U-boat, and it is all very novel. I find the roar of the Diesel engine very relentless, and last night slept badly in a wretched bunk, which was a poor substitute for my lovely quarters in the barracks at Wilhelmshaven. One thing I appreciate, and that is the food; it is really excellent: fresh milk, fresh butter, white bread and many other luxuries. I have spent most of the day picking up things about the boat. Her general arrangement is as follows: Starting in the bows, mine tubes occupy the centre of the boat, leaving two narrow passages, one each side. In the port passage is the wireless cabinet and signal flag lockers, with store rooms underneath. In the starboard passage are one or two small pumps and the kitchen. The next compartment contains four bunks, two each side, these are occupied by Alten, myself, the engineer, and the Navigating Warrant Officer. Proceeding further aft one enters the control room, in which one periscope is situated, and the necessary valves and pumps for diving the boat. The next compartment is the crew space; ten of the company exist here. Overhead on each side is the gear for releasing the torpedoes from the external torpedo tubes, of which we carry one each side. I think we borrowed this idea from the Russians. Then comes the engine-room, an inferno of rattling noises, but excellent engines, I believe. At the after end of the engine-room are the two main switchboards, of whose manner of working I am at present in some ignorance. The two main sets of electric motors are underneath the boards, in the stern, where we have a third torpedo tube. * * * * * I had hardly written the above words when a message came that the captain would like me to come to the bridge.