THE

Young Mathematician's Guide:

Being a PLAIN and EASY

INTRODUCTION

TO THE

MATHEMATICKS.

IN FIVE PARTS.

VIZ.

I. Arithmetick, Vulgar and Decimal, with all the useful 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 Easy; and illustrated with
Variety of Examples, and Numerical Questions. Also the whole
Business of Interest and Annuities, &c. performed by the Pen.

III. The Elements of Geometry contracted, and Analytically
demonstrated; with a New and Easy Method of finding the Circle's
Periphery and Area to any afsigned Exactness, by one Equation only;
also 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
Easy; 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 History 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.

12 7.16 13903

To the HONOURABLE

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

SIR,

W

HEN requested by some Booksellers in London, to Revise and Prepare this Treatise for a New Impreffion, and once refolved to answer their Demands; I was not long confidering at whose 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 lost, when I am forgetful of the great Obligations I lie under to Sir Richard Grosvenor.

Your Hospitality and Generosity make you stand unenvied in the Abundance of Fortune. Any Upstart may contrive to spend a Great Estate; but it is a Felicity almost peculiar to Great Birth to become

One.

Were I now to describe Liberality, without Profuseness; 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 poffefsed of all these good Qualities in as high a Degree as most Men living; No Gentleman that knows you well, would think I flattered you.

A 2

Sir,