Cyropaedia

You superintendents of the engineering corps[*]((6) engineers) have here from me a list of the spearmen, the archers, and the slingers, whose names have been stricken from the roster. You must require those of them who were spearmen to carry on the march a woodcutter’s axe, those who were bowmen a mattock, and those who were slingers a shovel. With these tools they are to march in squads ahead of the wagons, so that, in case there is any need of road-building, you may get to work without delay, and so that, if I require their services, I may know where to find them when the time comes.