and ordeine lawes for their souldiers. Whosoeuer runneth to the pray or spoyle, before the victorie be achieued, must vndergoe a most seuere punishment. For such a fellow is put to death among the Tartars without all pitie or mercie. The place of battel must be chosen, if it be possible, in a plaine fielde, where they may see round about, neither must all be in one company, but in manie and seuerall bandes, not very farre distant one from another. They which giue the first encounter must send one band before, and must haue another in a readynesse to relieue and second the former in time conuenient. They must haue spies also on euery side to giue them notice when the rest of the enemies bandes approch. For therefore ought they alwayes to send forth band against band and troupe against troupe, because the Tartar euer practiseth to gette his enemie in the midst and so to enuiron him. Let our bands take this caveat also, if the enemie retire, not to make any long pursuit after him, lest peraduenture (according to his custome) he might draw them into some secret ambush: for the Tartar fights more by policie than by maine force. Those horses which the Tartars vse one day, they ride not vpon three or foure dayes after. Moreouer, if the Tartars draw homeward, our men must not therefore depart and casseir their bandes, or separate themselues asunder: because they doe this vpon policie, namely to haue our armie diuided, that they may more securely inuade and waste the countrey. And in very deede, our captaines ought both day and night to keepe their armie in a readines: and not to lie out of their armour, but at all assayes, to bee prouided for battell. For the Tartars like deuils are alwaies watching and deuising howe to practise mischiefe. Furthermore, if in battell any of the Tartars be cast off their horse backes, they must presently bee layd holde on and taken, for being on foote they shoote strongly, wounding and killing both horses and men. De itinere Fratris Iohannis de Plano carpini vsque ad primam custodiam Tartarorum. Cap. 19.