Whan thou wolt make the mene mote of eny planete to be by Arsechieles tables, take thy rote, the whiche is for the yere of oure lord 1397; and if so be that thy yere be passid the date, wryte that date, and than wryte the nombere of the yeres. Than withdrawe the yeres out of the yeres that ben passed that rote. 5 Ensampul as thus: the yere of oure lord 1400, I wolde witen, precise, my rote; than wroot I furst 1400. And under that nombere I wrote a 1397; than withdraw I the laste nombere out of that, and than fond I the residue was 3 yere; I wiste that 3 yere was passed fro the rote, the whiche was writen in 10 my tables. Than after-ward soghte I in my tables the _annis collectis et expansis_, and amonge myn expanse yeres fond I 3 yeer. Than tok I alle the signes, degrees, and minutes, that I fond directe under the same planete that I wroghte for, and wroot so many signes, degrees, and minutes in my slate, and 15 afterward added I to signes, degrees, minutes, and secoundes, the whiche I fond in my rote the yere of oure lord 1397; and kepte the residue; and than had I the mene mote for the laste day of Decembere. And if thou woldest wete the mene mote of any planete in March, Aprile, or May, other 20 in any other tyme or moneth of the yere, loke how many monethes and dayes ben passed from the laste day of Decembere, the yere of oure lord 1400; and so with monethes and dayes entere in-to thy table ther thou findest thy mene mote y-writen in monethes and dayes, and take alle the signes, 25 degrees, minutes, and secoundes that thou findest y-write in directe of thy monethes, and adde to signes, degrees, minutes, and secoundes that thou findest with thy rote the yere of oure lord 1400, and the residue that leveth is the mene mote for that same day. And note, if hit so be that thou woldest 30 wete the mene mote in ony yere that is lasse than thy rote, withdrawe the nombere of so many yeres as hit is lasse than the yere of oure lord a 1397, and kepe the residue; and so many yeres, monethes, and dayes entere in-to thy tabelis of thy mene mote. And take alle the signes, degrees, and minutes, and 35 secoundes, that thou findest in directe of alle the yeris, monethes, and dayes, and wryte hem in thy slate; and above thilke nombere wryte the signes, degrees, minutes, and secoundes, the whiche thou findest with thy rote the yere of oure lord a 1397; and with-drawe alle the nethere signes and degrees fro the signes and 40 degrees, minutes, and secoundes of other signes with thy rote; and thy residue that leveth is thy mene mote for that day. 46. FOR TO KNOWE AT WHAT HOURE OF THE DAY, OR OF THE NIGHT, SHAL BE FLODE OR EBBE.