At last on the 17^{th} of October the monster of Leugenboom belongs to us. Our troops neared it, and, passing by it, threw a slightly haughtly look, but certainly encouraged by their grand trophy. Pressed by our soldiers, the Germans had hastily attempted to put their cannon out of action. It was loaded and levelled horizontally, and so it remains to the present day. In that position they hoped that the projectile would touch the concrete mass before being entirely shot out of the tube, and that its bursting would blow up the flight. But their anticipations were not realised; the projectile, instead of being stopped by the mass of concrete, passed through it, making a breach and burst about 800 meters further. It was a Krupp marine gun of 380 mm. (15 inch), type 1914, n^o 154, of a total length of 17 m. 13 placed on a gun carriage, formed by two formidable tanks, tap rooted in the centre of a concrete pit. This pit has a special shape because, of the conditions the constructors imposed themselves to give it a field of fire of 157°, the axis of which passes by Dunkirk. The total weight of the piece is 77630 kilos. The breech has an outer diameter of one meter, the manœuvre is electrical but there exists handles for hand manœuvring. The artillery men were entirely protected by a cabin joined to the gun carriage, built in strong sheet of iron of a thickness of about 50 mm. The cannon fired a projectile of 750 kilogrammes. The two heavy guns of Predikboom and Leugenboom subjected Dunkirk to thirty two bombardments, the four hundred and eleven 15 inches shells of which killed one hundred and fourteen persons and wounded one hundred and eighty five. [Illustration: COUCKELAERE.—Heavy 15 inch gun at Leugenboom. ] [Illustration: CAESKERKE.—Arched communication trench and light railway line (1916). ] LIST OF THE PHOTOGRAPHS AND SKETCHES Pages. H. M. THE KING ALBERT OF BELGIUM 3 CAESKERKE: Arched communication Trench and light railway line (1916) 71 CLERCKEN: Sketch of the German Observation-post 59 COUCKELAERE: Heavy 15 inch German gun at Leugenboom 70 DIXMUDE: Their Majesties the King and Queen in the “Death Trench” (June 1^{st} 1917) 32 DIXMUDE: Their Majesties the King and Queen at the “Rider’s work” (June 1^{st} 1917) 32 DIXMUDE: The flour-mill. La minoterie (1916) 45 „ The flour-mill. La minoterie (1917) 46 „ Aerial photo (May 26^{th} 1917) 31 „ Sketch of the “Death Trench” and of the “Rider’s work” 35 DIXMUDE: Sketch of the Bridge-head at kil. 19.500 of Yser river 56