The work here is strenuous, and the grass does not grow under one's feet. The course for commanding officers lasts four weeks, and terminates in an exceedingly practical but rather fearsome test--i.e., they have six steamers here camouflaged after the English fashion with dazzle painting, and these six steamers, protected by launches and harbour defence craft, steam across Kiel Bay in the manner of a convoy. The officer being examined has to attack this group of ships in one of the instructional submarines, and in three attacks he must score at least two hits, or else, in theory, he is returned to general service in the Fleet. Fortunately at the moment I hear that owing to recent losses they are distinctly on the short side where submarine officers are concerned, so they'll probably make it easy when I do my test. * * * * * I see I have written nothing here for a fortnight; this is due to two causes: Firstly, I have been so extraordinarily busy, and, secondly, I have been most depressed through a letter I received from Fritz. It contained two items of bad news. In the first place, I heard for the first time of the tragedy of Heinrich Baumer's boat, and to my astonishment Fritz tells me that Rosa and another girl were in her when she was lost! It appears that she was to go out for a couple of hours' diving off the port as a matter of routine after her two months' overhaul. She went out at 10 a.m., and was sighted from the signal station at the end of the mole at 11.30, when almost immediately afterwards there was an explosion and she disappeared. Motor-boats were quickly on the scene, but only debris came to the surface. Divers were sent down, and reported that she was in ten metres of water completely shattered. It is assumed, for lack of other explanation, that she struck a chance drifting mine which was moving down the coast on the tide. Meanwhile Rosa and another sister were missing from the hospital, and after forty-eight hours someone put two and two together and started investigations. It has been ascertained that Baumer motored down from Bruges after breakfast, and that in the car were two figures taken to be sailors, as they were muffled up in oilskins. This fact was noted by the control sentries, as, though the day was showery, it was not raining hard. Other scraps of evidence unite in showing that these were the two girls who had apparently induced Baumer to take them out for a dive as a treat. What a tragedy! However, it must have been quite instantaneous. Poor Rosa, with all her vanities about war work, to think that the war would claim her like that! [1] [Footnote 1: It is known that a boat with women on board was lost whilst exercising off Zeebrugge in the Spring of 1917. This would appear to be the boat in question.--ETIENNE.]