William Duane, A military dictionary
“ The line turns out without arms whenever the general commanding in chief comes along the front of the camp.In the British army the following is the usage:When the line turns out, the private men are drawn up in a line with the bells of arms; the corporals on the right and left of their respective companies: the piquet forms behind the colors, with their accoutrements on, but without arms.The serjeants draw up one pace in the front of the men, dividing themselves equally. ”
