The ARGUMENT.
YOu're come to see a Sight, the World's the Stage; Perhaps you'l say, 'Tis a Star-gazing Age. Come out and see the Ʋse of Instrument, Can Speculation yield you such Content? That you can rest in Learning; But the Name Of flying Pegasus, or swift Charles-Wain. And would you learn to know how he doth move About his Axis, set at work by Jove? If you would learn the Practice, read, and then I need not thus intreat you by my Pen, To tread in Arts fair Steps, or gain the way; Go on, make haste, Delinquent, do not stay. Or will you scale Olympick Hills so high? Be sure take fast hold on Astronomy; Then in that fair-spread Canopy no Way From thee is hid, no not Galaxia. They that descend the Waters deep, do see Our great God's Wonders there, and what they be. They that contemplate on the Starry Sky, Do see the Works that he hath fram'd so high. Then learn the Worlds Division, and that Art Which I shall shew you in this Second Part.IN this Book is contained both a general and particular Description, Making, and Use of all the most necessary Instruments belonging to the Art of Navigation; As the Mathematical Ruler, on which are these Scales following; viz. The Line of Chords, Points, Leagues, Longitude, Natural Sines, Tangents, Secants, at one End; at the other is Dialling Scales, viz. The Art of Dialling of all sorts, resolved by the Chords and Gnomon Line, and Scale of Six Hours; Scale of Inclination of Me∣ridians, and two Scales inlarging Hours; Lines upon any reclining, inclining, or de∣clining, Plain without a Center, called the greater and lesser Pole: On the other side is a Line of Artificial Signs, Tangents, and Numbers; A Meridian Line, according to Mercator's or Mr. Edward Wright's Projection; And Tables for the making of these Scales, with a Line of Longitude and Reduction, which are the Lines on the Mathe∣matical