Chaucer's Works, Volume 3 — The House of Fame; The Legend of Good Women; The Treatise on the Astrolabe; The Sources of the Canterbury Tales

by Geoffrey Chaucer

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

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with-drawe alle the nethere signes and degrees fro the signes and

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.

First wite thou certeinly, how that haven stondeth, that thou