2 The Meridian, if a line that is drawen quite crosse the AEquinoctiall, and passeth through the Poles of the Earth, going directly North and South. It is called the Meridian, because when the Sunne stands just over that circle it is Meridies i.d. noone day.  It may be conceaued thus, at noone day, when it is just twelue a clocke, turne your face towards the South, and then imagine with your selfe two circles drawen, one in the Heavens, passing from the North iust over your head through the body of the Sunne downe to the South, and so round vnder the earth vp againe to the North Pole.  Another vpon the surface of the earth passing through your feete just vnder the Sunne, and so compassing the earth round till it meete at your feete againe, and these are Meridians answering one to another.  Now the Meridian is not one only, as was the AEquinoctiall, but many still varying according to the place wherein you are, as for example.  At London there is one Meridian, at Oxford another, at Bristow another, & so along Eastward or Westward.  For it is noone at London sooner then at Oxford, and at Oxford sooner then at Bristow.  Vpon the globe there are many drawen, all which passe through the poles, and goe North and South, but there is one more remarkeable then the rest, drawen broad with small divisions, which runneth through the Canary Ilands, or through the Ilands of Azores Westward of Spaine, which is counted the first Meridian in regard of reckoning and measuring of distances of places one from another; for otherwise there is neither first nor last in the round earth.  But some place must bee appointed where to beginne the account and those Ilands haue beene thought fittest, because no part of the World that lay westward was knowne to the Ancients further then that:  and as they began to reckon there, we follow them.  This circle is called in greeke [Greek:  Mesembrinos].

3.  The Horizon is two fold:  { Sensible or appearing.
                            { Intelligible or true.

The Sensible or appearing Horizon is the space of the earth so farre as in an open plaine, or vpon some Hill a man may see round about him. The brim or edge of the earth further then which you cannot see, that is the Horizon, or as some call it the Finitor.  Because finet or terminat visum it setts the limits or bounds to your sight, beyond which nothing can bee seene vpon the earth.  This is greater or lesser, according as the height of the eye aboue the plaine superficies of the earth, is more or lesse.  The most exact triall hereof is at Sea, where there are no mountaines nor any vnequall risings of the water to hinder the sight, as there are at land.  For example let (CBAF) be the superficies of the Sea and let a mans eye bee placed in (X) aboue the Sea; as the eye stands higher or lower so will the distance seene be more or lesse, as if the hight