glance at the gauge he has fitted in the wardroom told him we were not sinking rapidly. In an instant he had put his finger on the trouble, which was that we were almost head on to the sea, with the result that he had given the order as stated above, which, bringing us beam on to the sea, had caused her to dive with ease. He is efficiency itself! 

 As I explained to him what had happened, the noise of propellers at varying distances from us overhead led him to state his belief that we had run into a convoy homeward bound to Southampton from the Atlantic. 

 He approved of my actions in every particular, save only in my omission to bring the boat away from the sea as I began to dive. 

 This morning we are beginning to get the full force of what is evidently going to be a south-westerly gale of some violence. The seas are getting larger as we debouch into the Atlantic. This looks bad for business. 

 At the moment we are practically hove to on the surface, with the port engine just jogging to keep her head on to sea and the starboard ticking round to give her a long, slow charge of 200 amps. 

 The wind is force 7-8 and a very big sea is running which makes it entirely impossible to open the conning tower hatch; the engine is getting its air through the special mushroom ventilator, which is apparently not designed to supply both the boat's requirements and those of the engine; the whole ventilator gets covered with sea every now and then, during which period until the baffle drains get the water away no air can get in, so the engine has a good suck at the air in the boat, the result of all this being a slight vacuum in the boat. It is a very unpleasant sensation, and made me very sick. This is really a form of sickness due to the rarefied air. 

 I had a great surprise when I looked at the barograph this morning as the needle had gone right off the paper at the bottom, and at first glance I thought we had struck a tropical depression of the first magnitude, which, flouting all the laws of meteorology, had somehow found its way to the English Channel; but the engineer explained to me that, as I have already stated, the low atmospheric pressure in the boat was due to the conning-tower hatch being shut down. 

  

  

 I have discovered that Von Weissman is a martyr to sea-sickness--all day he has been lying down as white as a 

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