M. Blundevile his exercises containing sixe treatises, the titles wherof are set down in the next printed page: which treatises are verie necessarie to be read and learned of all yoong gentlemen that haue not bene exercised in such disciplines, and yet are desirous to haue knowledge as well in cosmographie, astronomie, and geographie, as also in the arte of navigation ... To the furtherance of which arte of navigation, the said M. Blundevile speciallie wrote the said treatises and of meere good will doth dedicate the same to all the young gentlemen of this realme.

Of the diuerse kindes of moneths Lunar. Chap. 46.

HOw many kindes be there, and which be they?

Iohannes de Sacro Busto sayth that there be foure kindes, that is the moneth of paragration, the moneth of apparati∣on, the moneth medicinall, and the moneth of consecution.

The moneth of Paragration, is that space of time in which the Moone departing from any one point of the Zodiaque, goeth by her proper moouing about the Zo∣diaque, and returneth againe to the said point from which she first departed which her reuolution is accomplished in 27. dayes, & 8. houres. And this reuolution of some is called a yeare, and by this account the Moone tarrieth in euery signe two dayes sixe houres and 29′·

The moneth of Apparation consisteth of 28. dayes, deuided commenly by foure wéekes, euery wéeke contayning seuen daies,

for foure times seuen maketh 28. of which foure wéekes the first is counted from her first apparance vnto the ende of the seuenth day, and so foorth from wéeke to wéeke, so as the fourth wéeke en∣deth at the 28. day, in which account the odde houres during the Moones abode vnder the beames of the sunne, when as she is said to be combuste, are not reckned.

The moneth Medicinall contayneth but 26. dayes, and a halfe (as Galen sayth) and is deuided also into foure wéekes, the diui∣sion being made by minutes.

The moneth of Consecution is that space of time wherein the Moone being in coniunction with the sunne, goeth about her Cir∣cle and returneth againe to the same point, and not finding the sunne there because he hath in that while passed through one whole signe, she hasteth after and in two dayes and foure houres 44′· and a little more she ouer taketh the sunne, and is againe with him in coniunction, of which her following and ouertaking, the sunne this moneth is called the moneth of Consecution, which moneth consisteth of 29. dayes and a halfe: during which time as the sunne by his owne proper course passeth through one signe or there abouts, so the Moone by her course in the selfe same time passeth through the whole Zodiaque and one signe more: And note by the way that the sunne in making his owne proper course doth not enter into any signe in the very beginning of any moneth, but rather about the midst of euery moneth, or at the least not much ouer or vnder that day.