dwell with in 23. degrees of the Aequator; for so much is the declination, or sloping of the Zodiacke.  This circle is also called the Eclipticke line, because when the Sunne and Moone stand both in this circle opposite each to other, then there happens an Eclipse of the Sunne or Mone, vpon a globe it is easily discerned, by the sloping of it from the Aequator, and the diuisions of it into 12. parts, and euery of those 12. into 30. degrees.

These are the greater circles:  the lesser follow; which are all of one nature, and are called by one generall name:  sc.  Parallels, because they are so drawen on each side of the Aequator, as they are equidistant vnto it euery way. Many of this kinde are drawne vpon the globe (as is easie to bee seene) and may bee conceaued to bee drawne vpon the earth:  but there are only two sorts cheifely to bee marked:  namely the

    { Tropickes and the }
    { Polar circles. }

The tropickes are two, parallel circles distant on each side of the Aequator 23. degrees shewing the farthest bounds of the Sunns declination North or South from the Aequator, or the midest of heauen. And therefore they are called tropickes a [Greek:  trepothai] vertendo, because when the Sunne comes ouer these lines, hee either turnes away from vs, as in the Summer, or turnes toward vs againe as in the winter:  There are then two of them vid.

{ 1 The Tropicke of Cancer which lies on the North side { of the Aequator, to which when the Sunne comes, it { makes the longest day in Summer. { { 2 The Tropicke of Capricorne, lying Southward of the { Aequator, to which when the Sunne comes, it makes the { shortest day in winter.

The Polar circles are two parallels drawne by the poles of the Zodiacke compassinge about the poles of the world, being distant from them euery way 23 degrees.  These are two.

1 The Articke Circle that compasseth about the North Pole:  it is so called because that in the Heavens (where vnto this in the earth lies opposite) runs through the constellation of the great Beare, which in greeke is called [Greek:  arktos]

2 The Antarticke circle that compasseth about the South Pole, & is placed opposite vnto the former. All these with the former are easily known vp[o] the Globe by these descripti[o]s, & names vsually added vnto th[e].  But because maps are of an esier price, & more c[o]mon vse then Globes, it will be needfull to shew how all these circles, which are drawne most naturally vpon a round Globe, may also as truly, and profitably for knowledge and vse be described vpon a plaine paper.  Whereby we shall vnderstand the reason of those lines which We see in the vsuall Mapps of the world, both how they are drawne, and wherefore they serue.  Vnderstand therefore, that in laying downe the globe vpon a plaine paper, you must imagine the globe to be cut in two halfes