On the mornings of the battles of the Somme I saw them as the heralds of a new day of strife flying toward the lines in the first light of dawn. When the sun rose its rays touched their wings, made them white like cabbage butterflies, or changed them to silver, all a sparkle. I saw them fly over the German positions, not changing their course. Then all about them burst black puffs of German shrapnel, so that many times I held my breath because they seemed in the center of the burst. But generally when the cloud cleared they were flying again, until they disappeared in the mists over the enemy’s country. There they did deadly work, in single fights with German airmen, or against great odds, until they had an air space to themselves and skimmed the earth like albatrosses in low flight, attacking machine-gun nests, killing or scattering the gunners by a burst of bullets from their Lewis guns, dropping bombs on German wagon transports, infantry, railway trains (one man cut a train in half and saw men and horses falling out), and ammunition-dumps, directing the fire of our guns upon living targets, photographing new trenches and works, bombing villages crowded with German troops.