are called justices, when they are appointed by the king, sometimes chosen by the  parties by common consent, we must first see how they are appointed by the king  and by what writ. The writ is this.
[Writ for] appointing justices to make a partition.  The king to his beloved and faithful A. B. C. and D., greeting. Know that we have  appointed you justices, that before all of you, or some if all cannot be present, an  extent [and valuation] be made of such an honour [between A. of N. and B. of N. by  such persons], in accordance with what we have made known to the aforesaid  persons and their companions by our letters patent. Therefore we order you to  assemble on such a day at such a place and to extend, lawfully, discreetly and reasonably,  and cause to be valued by the oath of the persons aforesaid, or some of them if  all chosen by common consent of the parties are not present, all the lands and tenements  of the said honour of N. with all its appurtenances, that is, in demesnes,  villeinages, in the services of free men, in meadows, pastures, woods and fields, and  in all other things belonging to those lands and tenements. And if all the chosen  extenders do not come on that day, or though they come are unwilling to make the  extent, then put in their place other lawful and discreet men whom you find more  useful for this purpose and cause that extent and valuation to be made by their oath,  in accordance with what was said above, so that the extent is in no way delayed  beyond that day. And know that the aforesaid persons have found sureties for having  their extenders, that is, those chosen by the parties and named above, on the same  day. And cause that extent and valuation to be made known to us or our justices,  such persons at such a place, on such a day, clearly, distinctly and openly, under the  seals of the aforesaid extenders. In testimony whereof etc. Witness etc. There is  another form of the same writ; if the men of that county are disobedient, how others  from another county are to be substituted in their place to make the extent.
[Writ] appointing justices to be present at a partition.  The king to his beloved and faithful men, greeting. Know that we have appointed  you our justices to be present at the making of an extent and valuation between  such persons and such other persons with respect to such an honour with the  appurtenances, so that the extent and valuation be made before you on such a day  and at such a place by A. B. C. and D. chosen on the part of such a one and by  E. F. and G. chosen on the part of such other person if they all are then