Again comments on life at R.M.C. General military topics: 4th Canadian Division, conscription, politics, units, 11th Brigade Headquarters signal section, methods of passing messages, etc. (20:00) Comments that ex-telegraph operators were very valuable, since Morse code in much use. Special codes were established (1916), since the enemy was using sensitive listening devices. Remarks on the capture of Regina Trench/Courcelette in 1916. Burns became a staff officer with the 9th Brigade in March 1917, dealing with supply and personnel. Discusses preparation for, and the attack on, Vimy Ridge. Flashback to the Somme: awarded the Military Cross for maintaining communications under heavy fire, and, for the same action, his non-commissioned officers received Military Medals. Describes an unsuccessful gas attack as a preliminary to Vimy. After the failure the Germans allowed an unofficial cease-fire while the Canadians collected their dead and wounded. (45:00) Morale suffered in the two battalions involved. (48:00)