As we drove along the moonlit road from Albert on the way to Boulogne we passed company after company of soldiers trudging along towards the front; they did not sing. It was the 4th Canadian Division going into action--about to experience that great adventure of battle for which they had trained so long and had come so far to obtain. Farther along the road we could hear away in the distance a song; we could not distinguish the words but we knew that soon we would hear "Pack up your troubles in your own kit bag and Smile, Smile, Smile!" They were Canadians coming out of the trenches. FOOTNOTES: [1] Our men have since been astonished at the wonderful view of our lines obtained from the Messines-Wytschaete ridge. INDEX A Air service, 237; battle, 88 Alderson, General, 94, 237 Advanced Dressing Station, 128 Ambulance, work of, 129; Field, Canadian, No. 3., 104, 108 Artillery, Canadian, in billets, 22; Shelling by, 158 Aubers ridge, battle of, 170 Australians, arrival of, from Gallipoli, 236 B Band, British Guards, 173; Indian, 174 Bailleul, garden in, 116, 240 Balbaud, Professor Paul, 121 Barrows, Roman, Salisbury Plains, 27 Battalion, first Canadian, 117; third Canadian (Toronto), 70, 115; Winnipeg rifles, 7; work of medical officers of, 127 Baths, divisional, 146, 147 Bird life, Salisbury Plains, 25; the nameless, 242 Bombs, on Bailleul, 233; on Canadian Headquarters, 237; on Merville, 72 Bournemouth, 52 Boyd, Capt, 104 Brielen, 91 British officers, 66 Buckingham Palace, investiture at, 230 Burstall, General (C.B.), 94, 237 C Canadian contingent, first, leaving Gaspe, 5; arrival at Plymouth, 9; Salisbury Plain, 10; sickness among, 19 Canadian division, first, review by King, 29; after Neuve Chappelle, 70; sports of, 74; German attack upon, 97 Canadian division, second, arrival in France, 123 Canadians in Ypres Salient, 1916, 250, 252 Canadian graveyard, 176; laboratory arrival in France, 65; work of (See 'Laboratory'). Casualty clearing station, work of a, 128 Chalons-sur-Marne, 206 Champagne, visit to, 205 Channel, crossing the British, 232 Cartwright, Lt., 234 Chlorine gas used by Germans, 94 treatment of water (See 'Water'), 140, 155 Cole, Capt. Cooper, 234 Cock fighting in France, 73 Creeks, pollution of, 147 D Disease, (See 'Epidemics'); "Carriers" of, 139, 142 Dressing Station, Canadian Advanced, 99 Dysentery, suspected epidemic of, 157 E Ellis, Major Arthur, 68, 107, 164, 232, 242, 245 Epidemics, how spread, 136; lack of, in British Army, 134 F Festubert, battle of, 118, 166 Fire fete of Merville, 180 Flowers in Spring, England, 57; France, 67; Experience with Parisian flower-girl, 194; in Bailleul garden, 239; in Merville garden, 121 French artillery, 109; front, visit to, 205 Foch, General, 106 Foster, Col. (C.B.) (Surgeon-General), 113 Funeral, a Canadian Soldier's, 116 G