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.

The Chapters and Contents of the first Booke.

OF Cosmography, what it is, and what kinde of Sciences it comprehendeth, and who were first inuentors thereof, Chap. 1.

The definition of a Spheare, and of the vnitie, roundnesse, and capacitie of the worlde, also of the Poles and Axletree thereof. Chap. 2.

Of the diuision of the world, and of the two Essentiall parts thereof, and what things ech part conteyneth. Chap. 3.

A figure of the whole world, wherein are set forth the two Essentiall parts before mentioned, that is to say, the eleauen heauens and the foure Elements.

A demonstration to prooue the pluralitie of the heauens, Chap. 4.

Of the highest Spheare or heauen, called the Imperial hea∣uen. Chap. 5.

Of the tenth Spheare or heauē called in Latine Primum m••∣bile, that is, the first moueable, & what motion it hath. Chap. 6.

Of the ninth heauen, what motions & names it hath, & whe∣ther there be any waters aboue the firmament or not. Chap. 7.

Of the eight heauen what motions it hath, and what circles are imagined by the Astronomers to be in that heauen, and to what vse and purpose they serue: Also in what time euery one of the seuen Planets maketh his reuolution, & of what thick∣nes their Spheares be. Chap. 8.

Of the circles whereof a materiall Spheare consisteth, and of their diuers diuisions. Chap. 9.

Of the Equinoctiall line, why it is so called, and of the di∣uerse vses thereof. Chap. 10.

A figure shewing the Equinoctiall line, the two poles and the Axeltree of the world.

Of the Zodiaque, why it is so called, and of the 12. signes therein conteined. Also of the Latitude, Longitude and de∣clination thereof. Chap. 11.

How much the Zodiaque declineth from the Equinoctial•• towards either of the Poles, and of the greatest declinatio•• of the sunne, what it is at this present, and what it hath been•• in times past. Chap. 12.

How to know the quantitie of the sunnes declination, be it Northward or Southward, euery day throughout the yeare aswell by a Table as by helpe of a materiall Spheare or globe▪ Chap. 13.

An instrument to knowe thereby in what signe or degree the sunne is euery day throughout the yeare.

A Table shewing the declination of the sunne euery day throughout the yeare lately calculated.

Vpon what poles the Zodiaque turneth about, also of the Ecliptique line and of the diuerse vses thereof. Chap. 14.

Of the Eclipses both Solar and Lunar, & of the head & tail of the Dragon with certaine figures shewing the same. cap. 15.

Of the two Colures, why they are so named, and wheret•• they serue: also of the foure Cardinall points, that is, the tw••

Equinoctial, and the two Solsticiall points, and of the entrance of the sunne into any of those points, or into any other signe. Chap. 16.

Of the Horizon both right and oblique, making thereby three kinds of Spheares, that is, the right, the paralell, and the oblique Spheare. Chap. 17.

A figure shewing the Latitude of any place to be equall vn∣to the eleuation of the Pole.

Of the Meridian, and of the vses thereof. Chap. 18.

Of the verticall circle and vses thereof, whereof no men∣tion is commonly made by those that write of the Spheare. Chap. 19.

Of the foure lesser circles, that is to say, the circle Artique, the circle Antartique, the Tropique of Cancer, and the Tro∣pique of Capricorne, and also of the fiue Zones, that is to say, two cold, two temperate, and one extremely hoat. Chap. 20.

A figure shewing the fiue foresaid Zones.

A Table shewing how many minutes are requisite to make one degree, in euery lesser circle answerable to one degree of the Equinoctiall.

Of the starres and celestiall bodies contained in the firma∣ment, and first of their substance. Chap. 21.

Of the moouing and shape of the starres. Chap. 22.

Of the number of the starres, and of their magnitude and greatnes, and into how many Images they are deuided, & how many starres euery Image contayneth. Chap. 23.

Of the xij. Images or signes of the Zodiaque. Chap. 24.

Of the xxj. Northerne Images. Chap. 25.

Of the 15. Southerne Images. Chap. 26.

Of the longitude of the fixed starres, and of the procession of the vernall Equinoctiall point, and what it is. Chap. 27.

Of the Latitude of the fixed starres. Chap. 28.

Of the Declination of the fixed starres. Chap. 29.

Of the ascention and discention, that is the rising and set∣ting of the starres, aswell according to the Astronomers, as ac∣cording to the Poets. Chap. 30.

Of the Astronomicall ascention and discention in generall both right, meane, and oblique, & what a giuen ark is. Cap. 31.

Of the right, oblique, and meane ascention in particular, and of the chiefe causes of such diuersitie of ascentions. cap. 32.

How to know the diuersities of the ascentions and discen∣tions, as well in the right as oblique Spheare. Chap. 33.

Of the ascentionall difference and vses thereof. Chap. 34.

Of the threefold Poeticall rising and setting of the starres, Chap. 35.

Of time, what it is, and into what parts it is deuided. chap. 36.

Of the yeare, and of his diuerse kindes, and of the diuerse computations had thereof in diuerse ages, and amongst diuers Nations. Chap. 37.

Of the sunnes yeare called in Latine annus solaris, and of the diuerse kinds thereof, and first of the Tropicall yeare, both e∣quall and vnequall. Chap. 38.

Of the Syderall yeare, & how much it containeth. chap. 39.

Of the Politicall yeare, and diuerse kinds thereof. chap. 40.

Of the Iulian yeare, why it is so called, and of the 2. kinds thereof, that is, the common yeare, and the bisextile yeare, otherwise called the leape yeare. Chap. 41.

Of the Egyptian yeare, and how many daies it containeth. Chap. 42.

How many Moones the Iewes yeare, and the Athenian yeare doe containe. Chap. 43.

Of the yeare Lunar, and of the kinds thereof. Chap. 44.

Of the diuers kinds of monthes, and into what parts euery Solar moneth is deuided according to the Romanes, that is, into Kallends, Nones, and Ides. Chap. 45.

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

Of a weeke. Chap. 47.

Of dayes and nights both naturall and artificiall, as well in the right Spheare, as in the oblique Spheare. Chap. 48.

Two figures shewing the right and oblique Spheare, toge∣ther with the arckes of the dayes and nightes in ech Spheare. Chap. 49.

How to find out by the materiall Spheare or Globe, and by helpe of the ascentionall difference before defined, the in∣crease & decrease of euery day throughout the yeare in euery seueral latitude, & at what houre the sun riseth & setteth. c. 50

How to know by the materiall Spheare or Globe, in what part of the Horizon the sunne riseth and setteth euery day, and thereby the length of the day. Also how to know the Me∣ridian altitude of the sunne euery day throughout the yeare, & being at his Meridian altitude, to know how farre distant he is from the Zenith euery day, Chap. 51.

Of houres as well equall as vnequall, and into what partes they are deuided. Chap. 52.

How and in what manner the Iewes doe deuide the artifi∣ciall day and night, ech of them into foure quarters. chap. 53.

How to knowe what Planet raigneth in euery houre of the day or night artificiall, as well by helpe of a table, as by a rule contained in one verse. chap. 54.

Here ende the Contents of the first Booke.