C. A. Rose, Three years in France with the Guns…
“ Then suddenly the guns bark out afresh, and a creeping barrage drops down like a curtain in front of the men, who follow after it at an easy walk. Fortune attends the little party, as the wire has only been cut in three places, and these are speedily repaired; and, as soon as the second wave of men is clear of the trench, the line is laid out as rapidly as possible behind them. The ground is difficult to traverse, being full of deep craters, so the party progresses more slowly than the infantry, and presently the third wave gains on and passes it by. ”
