THE

Young Mathematician's Guide:

Being a PLAIN and EASY

INTRODUCTION

TO THЕ

MATHEMATICKS.

IN FIVE PARTS.

V I Z.

1. Arithmetick, Vulgar and Decimal, with all the ufeful Rules;
and a General Method of Extracting the Roots of all Single Powers.
II. Algebra, or Arithmetick in Species; wherein the Method of
Raifing and Refolving Equations is rendered Eafy; and illustrated with
Variety of Examples, and Numerical Queftions. Alfo the whole
Bufinefs of Interest and Annuities, &c. performed by the Pen.
III. The Elements of Geometry contracted, and Analytically
demonftrated; with a New and Eafy Method of finding the Circle's
Periphery and Area to any affigned Exactnefs, by one Equation only;
alfo a New Way of making Sines and Tangents.

IV. Conic Sections, wherein the chief Properties, &c. of the
Ellipfis, Parabola, and Hyperbola, are clearly demonftrated.
V. The Arithmetick of Infinites explained, and rendered
Eafy; with it's Application to fuperficial and folid Geometry.
With an APPENDIX of Practical Gauging.

By JOHN WARD.

The TWELFTH EDITION,
Carefully Corrected and Improved by SAMUEL CLARK,

To which is added,

A SUPPLEMENT, containing the Hiftory of LOGARITHMS,
and an INDEX to the whole Work.

LONDON:

Printed for J. BEECROFT, J. RIVINGTON, L. HAWES, W. CLARKE
and R. COLLINS, W. JOHNSTON, T. LONGMAN, T. CASLON,
S. CROWDER, B. LAW, T. BECKET, G. ROBINSON and
J. ROBERTS, S. BLADON, and R. BALDWIN. 1771.

Sir RICHARD GROSVENOR, of Eaton, in the County Palatine of Chefter, Baronet.

SIR,

W

HEN requested by fome Booksellers in London, to Revise and Prepare this Treatife for a New Impreffion, and once refolved to answer their Demands; I was not long confidering at whofe Feet to lay it.

My Memory may indeed be impaired by Age, Misfortunes, and Accidents; nay, I am fenfible it is fo: But it must be entirely loft, when I am forgetful of the great Obligations I lie under to Sir Richard Grofvenor.

Your Hofpitality and Generofity make you ftand unenvied in the Abundance of Fortune. Any Upftart may contrive to spend a Great Eftate; but it is a Felicity almost peculiar to Great Birth to become

One.

Were I now to describe Liberality, without Profufeness; Steadiness in Principles, without any private View; Candour and Affability, Good Nature joined to found Judgment, and a Serenity of Temper, which your Enemies will always find the Companion of true Courage; and then pronounce that you are poffeffed of all thefe good Qualities in as high a Degree as moft Men living; No Gentleman that knows you well, would think I flattered you.