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.

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Title
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.
Author
Blundeville, Thomas, fl. 1561.
Publication
London :: Printed by Iohn Windet, dwelling at the signe of the crosse Keies, neere Paules wharffe, and are there to be solde,
1594.
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Subject terms
Mercator, Gerhard, 1512-1594.
Plancius, Petrus, 1552-1622.
Blagrave, John, d. 1611.
Astronomy -- Early works to 1800.
Arithmetic -- Early works to 1900.
Trigonometry -- Early works to 1800.
Early maps -- Early works to 1800.
Link to this Item
http://name.umdl.umich.edu/A16221.0001.001
Cite this Item
"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." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A16221.0001.001. University of Michigan Library Digital Collections. Accessed October 31, 2024.

Pages

How to knowe euery day at what houre the Moone riseth and setteth, and how long she continueth aboue the Horizon, and also when she is full South. The 11. Proposition. (Book 11)

FIrst you must learne by some Almanacke or Ephe∣merides in what signe and degrée the Moone is, and whether it be a Northerne signe or a Southern signe, for if she be in a Northerne signe, then bring her place to the Horizon of your latitude in the Northeast part of the Astrolabe, but if she be in a Southerne signe bring her place to the said Horizon in the Southeast part of the Astrolabe, & there hauing stayed the Rete bring the labell to the place of the Sun for that day, & the labell will point to the houre of the Moones rising in the limbe of the mater: but because the Almanack or Epheme∣rides do not set downe ye true place of the Moone but only at noone, you must therfore consider whether it be in the forenoone or in the afternoone that you séeke, for if it be in the afternoone you had néed to know how many houres are run from noone, and then for euery houre to adde halfe a degrée to the place of the Moone which you found at noonetide, but if it be in the forenoone, then you must sub∣tract from her place at noone, for euery houre halfe a degrée, so shal you go very nigh to finds her true place in the Zodiaque for that houre, though you know not her latitude which is but 5. deg. at the most, & therfore can cause no great error in this matter. Now to knowe when she setteth you must do thus, if the Moone be in any Northern signe, thē you must bring her place to the foresaid Hori∣zon in the Northwest part of the Astrolabe, & by laying the labell to the place of the sunne, it will point to the houre of her setting, but if she be in any Southerne signe, you must bring her place to the Horizon in the Southwesth part of the Astrolabe, and the labell being laide to the place of the Sunne will point to the houre of her setting. Now if you would knowe how long time she is aboue

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the Horizon, and also at what houre she is full South, then count the houres betwixt her rising & setting, and that shall be the time of her continuance aboue the Horizon, and the very middest of that is the true houre that she is full South: As for example, the fourth day of September 1592. in the latitude 52. at nine of the clocke at night the Sunne being in the 21. degrées 47′· of Virgo or there abouts, & the Moone being in the 2. degrée 30′· of Capri∣corne, I am desirous to know when the Moone did rise that day, and by working according to the rule before set downe, I founde that she did rise about thrée of the clocke in the afternoone, and that she went downe at tenne of the clocke at night and halfe an houre past, and that she was full South or at the Meridian a little be∣fore seuen of the clocke in the afternoone. And as by this rule you may finde out the time of the rising and setting of the Moone, so may you finde the time of the rising and setting of the other fiue Planets, that is Saturne, Iupiter, Mars, Venus, and Mercury, any day throughout the yeare, so as you know their places in the Zodiaque, which the Ephemerides of Stadius doth shewe, not onely at noonetide, but also at any other houre of the day by helpe of certaine Tables made of purpose, the vse of which Tables I haue set downe in the latter end of my Treatise of the two globes.

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