Young Surveyor's Guide: OR, A New INTRODUCTION ΤΟ ΤΗΕ Whole Art of Surveying Land, Both by the CHAIN and all Inftruments now in Ufe. Now firft Publish'd from an Original M. S. To which is added, All the ufeful Geometrical Definitions, Axioms, Problems and Theorems, which relate to this Art. As alfo the Method of cafting up the Dimenfions of Artificers Work. Very useful for all Gentlemen and Others. There is alfo added, by Way of APPENDIX, a new Way of Surveying large Tracts of Land, ac cording to the Learned Mr Whifton's and Mr Diston's new Method of Surveying England by Explosions. The Manner of making up and preparing Tranfparent Colours for Beautifying Maps, Charts, Pictures, &c. The Tables of Artificial Numbers, Sines and Tangents, to every Degree and Minute of the Quadrant All which is very much Improved and Corrected, By EDWARD LAURENCE, Surveyor. The Second Edition, with the Tables carefully Corrected. LONDON. Printed for James Knapton, at the Crown in St Paul's Church Yard. 17178 7-17-28 BEH Heath 1-18-2771 THE PREFACE. A LTHO' there is little need of faying any thing by way of Preface to the following Trea tife; yet Custom having made it almost as neceffary as an Entrance to an Houfe I fhall fo far comply with Cuftom as to fay, That the following Directions for Surveying, &c. were put into my Hands in M. S. to be Enlarged, Corrected and Improved, in fuch a Manner as to make them of General Use and Eafy Practice, according to the Modern, Beft, and moft Improved Methods ins that Excellent and Ufeful Sciences. How far and bow well that Defign and Purpofe bath been pursued in the following Pages, I must leave to the Ingenuous Reader to judge, after I have just told him that He will meet meet A 2 with with feveral very ufeful Definitions, Axioms, Problems and Theorems, wholly new, or at least newly apply'd. Here will be found alfo feveral new Problems added, relating to the Art of Dividing Land; As alfo a New Method of Surveying large Tracts of Land, by Sounds as well as Sight, by Vertue of diftant Explofions, firft Invented and Published by those two great Genius's and Improvers of Natural Philofophy,the Learned Mr Whiston and Mr Ditton. I fhall only add, That to make this Treatife of as General Ufe as may be, the Reader will meet with an useful Collection of all transparent Colours proper for the Beautifying Maps, Charts, &c. which perhaps may be thought entertaining to the Curious. But if I bave made the whole Eafy, Natural and InAructive, I have gained my End, and the Satisfaction I aim at. Edward Laurence. CONTENTS. Plane Trigonometry. 145 A new Method of Surveying a Country or large |