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.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
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.
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 May 15, 2024.

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7 To find out the oblique ascention of the sunne.

KNowing the place of the sunne, finde out the right ascention of the same by the thirde proposition, and finde also the ascentionall difference of the same point, then if the declination of the sunne be North, subduct the ascentionall difference out of the right ascention, the remainder is the oblique ascention. For example, suppose the sunne to be in the beginning of Taurus, now to finde the oblique ascention thereof in the latitude 52. degrées, first by the third proposition I finde out the right ascention of the beginning of Taurus, which I finde to be 27. degrées 54′· then by the sixth proposition I finde the ascentionall difference to bee 15. degrées 4′· which being subducted frō 27. degrées 54′· (for that the declination is North) the right ascention the remainder is 12. degrées 50′· and so much is the oblique ascention for the latitude of 52. degrées. But if the sunne be in any of the Southerne sines, and that the declination bée South, then the ascentionall diffe∣rence is to be added vnto the right ascention before giuen.