"Why twenty, ain't there?" I numbered the troop. Twenty and Burker. "Tell off by sections." Five sections and Burker. "Sections right." A column of five sections and Burker, in the rear. I called out the section-leader of Number One section. "Are the sections correctly proved?" I asked, and added: "Put the troop back in line and tell-off again". "Five sections, correct," he reported.