Clarence Edward Mulford, Bar-20 (1907)
“ One man started firing at a particular window in an opposite hut and then laid aside his empty gun and waited. When the muzzle of his enemy's gun came into sight and lowered until it had nearly gained its sight level, the rifles of the remainder of the group crashed out in a volley and usually one of the bullets, at least, found its intended billet. This volley firing became universal among the besiegers and the effect was marked. ”
