Wells's Mathematical Series. 



ALGEBRA. 



Wells's Essentials of Algebra . . . . . $i.io 



A new Algebra for secondary schools. The method of presenting the fundamen- 

 tal topics is more logical than that usually followed. The superiority of the 

 book also appears in its definitions, in the demonstrations and proofs of gen- 

 eral laws, in the arrangement of topics, and in its abundance of examples. 



Wells's New Higher Algebra ..... 1.32 



The first part of this book is identical with the author's Essentials of Algebra. 

 To this there are added chapters upon advanced topics adequate in scope and 

 difficulty to meet the maximum requirement in elementary algebra. 



Wells's Academic Algebra ..... 1.08 



This popular Algebra contains an abundance of carefully selected problems. 



Wells's Higher Algebra ...... 1.3a 



The first half of this book is identical with the corresponding pages of the Aca- 

 demic Algebra. The latter half treats more advanced topics. 



Wells's College Algebra ...... 1.50 



A modern text-book for colleges and scientific schools. _ The latter half of this 

 book, beginning with the discussion of Quadratic Equations, is also bound sep- 

 arately, and is known as Wells's College Algebra, Part II. $1.32. 



Wells's University Algebra , . . • .1.3a 



GEOMETRY. 



Wells's Essentials of Geometry — Plane, 75 cts.; Solid, 75 cts.; 



Plane and Solid ....... i.as 



This new text offers a practical combination of more desirable qualities than 

 any other Geometry ever published. 



Wells's Stereoscopic Views of Solid Geometry Figures . .60 



Ninety-six cards in manila case. 

 Wells's Elements of Geometry — Revised 1894. — Plane, 75 cts.; 



Solid, 75 cts.; Plane and Solid . . . . .1.35 



TRIGONOMETRY. 

 Wells's New Plane and Spherical Trigonometry (1896) . $1.00 



For colleges and technical schools. With Wells's New Six-Place Tables, $1.25. 



Wells's Plane Trigonometry ..... .75 



An elementary work for .secondary schools. Contains Four-Place Tables. 

 Wells's Essentials of Plane and Spherical Trigonometry . .90 

 For secondary schools. The chapters on Plane Trigonometry are identical with 

 those of the book described above. With Tables, $i.o8. 

 Wells's New Six-Place Logarithmic Tables . , . .60 



The handsomest tables in print. Large Page. 

 Wells's Four-Place Tables ..... -25 



ARITHMETIC. 



Wells's Academic Arithmetic ..... $1.00 



Correspondence regarding terms for introduction 



and exchange is cordially invited. 



D. C. Heath & Co., Publishers, Boston, New York, Chicago 



