"The fourthe day compleet fro noon to noon, Whan that the heighe masse was y-doon, In halle sit this Ianuarie, and May As fresh as is the brighte someres day."[91] When Criseyde leaves Troilus to go to the Greek army she promises to return to Troy within the time that it will take the moon to pass from Aries through Leo, that is, within ten days: "'And trusteth this, that certes, herte swete, Er Phebus suster, Lucina the shene, The Leoun passe out of this Ariete, I wol ben here, with-outen any wene. I mene, as helpe me Iuno, hevenes quene, The tenthe day, but-if that deeth me assayle, I wol yow seen, with-outen any fayle.'"[92] But while the moon is quickly traversing the part of her course from Aries to Leo, Criseyde, pressed by Diomede, is changing her mind about returning to Troy, and by the appointed tenth day has decided to remain with the Greeks: "And Cynthea[93] hir char-hors over-raughte To whirle out of the Lyon, if she mighte; And Signifer[94] his candeles shewed brighte, Whan that Criseyde un-to hir bedde wente In-with hir fadres faire brighte tente. . . . . . . . . . . . . and thus bigan to brede The cause why, the sothe for to telle, That she tok fully purpos for to dwelle."[95] The passage of time is also indicated in Chaucer's poetry by reference to the recurrence of the moon's phases. In the _Legend of Good Women_, Phillis writes to the false Demophon saying that the moon has passed through its phases four times since he went away and thrice since the time he promised to return: "'Your anker, which ye in our haven leyde, Highte us, that ye wolde comen, out of doute, Or that the mone ones wente aboute. But tymes foure the mone hath hid her face Sin thilke day ye wente fro this place, And foure tymes light the world again.'"[96] Chaucer refers more often to the phases of the moon than to any other lunar phenomenon, but most of these references to her phases are used for the sake of comparison or illustration and give us little idea of the extent of Chaucer's knowledge. Mars in his 'compleynt' says that the lover "Hath ofter wo then changed is the mone."[97] The rumors in the house of fame are given times of waxing and waning like the moon: "Thus out at holes gonne wringe Every tyding streight to Fame; And she gan yeven eche his name, After hir disposicioun, And yaf hem eek duracioun, Some to wexe and wane sone, As dooth the faire whyte mone, And leet hem gon."[98] Chaucer briefly describes the crescent moon by calling her "The bente mone with hir hornes pale."[99] In Troilus' prayer to the moon, the line "'I saugh thyn hornes olde eek by the morwe,'"[100]