Text-Book of Last Century. 31 



tains a fine copper plate portrait of the author. The edition 

 which I examined was the twelfth. I give the title-page in 

 full, because a fair notion of the contents of the book may be 

 gained from it. 



"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 Raising and Resolving Equations is rendered easy; and illus- 

 trated with Variety of Examples, and numerical questions. 

 Also the whole business of Interest and Annuities, etc., per- 

 formed 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 assigned exactness, by 

 one equation only; also a new way of making Sines and 

 Tangents. 



IV. Co'nick Sections wherein the chief properties, etc., of 

 the Ellipsis, Parabola, and Hyperbola, are clearly demons- 

 trated. 



Y. The Arithmetick of Infinites explained, and rendered 

 easy; with its application to superficial and solid geometry. 

 With an appendix of Practical Gauging. 



By John Ward. 



The 12th Edition, carefully corrected and improved by Sam- 

 uel Clark. To which is added a supplement, containing the 

 history of Logarithms, and an index to the whole work. 

 London, 1771." 



From the preface we quote the following: " I believe I may 

 truly say (without vanity) this treatise hath proved a very help- 

 ful Guide to near five thousand pei'sons; and perhaps most of 

 them such as would never have looked into mathematicks at all 

 but for it." ... . " And not only so, but it hath been very well 

 received amongst the Learned, and ( I have been often told ) so 



