Mathematics 



Barton's Theory of Equations. A treatise for college classes. $1.50. 



Bowser's Academic Algebra. For secondary schools. $1.12. 



Bowser's College Algebra. A full treatment of elementary and advanced topics. $1.50. 



Bowser's Plane and Solid Geometry. $1.25. Plane, bound separately. 75 cts. 



Bowser's Elements of Plane and Spherical Trigonometry, go cts. ; with tables, $1.40. 



Bowser's Treatise on Plane and Spherical Trigonometry. An advanced work for col- 

 leges and technical schools. $1.50. 



Bowser's Five-Place Logarithmic Tables. 5° ots. 



Fine's Number System in Algebra. Theoretical and historical. $1,00. 



Gilbert's Algebra Lessons. Three numbers: No. i, to Fractional Equations; No. 2. 

 through Quadratic Equations; No. 3, Higher Algebra. Each number, per dozen, $1.44. 



Hopkins's Plane Geometry. Follows the inductive method. 75 cts. 



Rowland's Elements of the Conic Sections. 75 cts. 



Lefevre's Number and its Algebra. Introductory to college courses in algebra. $1.25. 



Lyman's Geometry Exercises. Supplementary work for drill. Per dozen, $1.60. 



McCurdy's Exercise Book in Algebra. A thorough drill book. 60 cts. 



Miller's Plane and Spherical Trigonometry. For colleges and technical schools. $1.15. 

 With six-place tables, $1.40. 



Nichol's Analytic Geometry. A treatise for college courses. $1.25. 



Osborne's Differential and Integral Calculus. $2.00. 



Peterson and Baldwin's Problems in Algebra. For texts and reviews. 30 cts. 



Robbins's Surveying and Navigation. A brief and practical treatise. 50 cts. 



Schwatt's Geometrical Treatment of Curves. $1.00. 



Waldo's Descriptive Geometry. A large number of problems systematically arranged and 

 with suggestions. 80 cts. 



Wells's Academic Arithmetic. With or without answers. $1.00. 



Wells's Essentials of Algebra. For secondary schools. $1.10. 



Wells's Academic Algebra. With or yithout answers. $1.08. 



Wells's New Higher Algebra. For schools and colleges. $1.32. 



Wells's Higher Algebra. $t.32. 



Wells's University Algebra. Octavo. $1.50. 



Wells's College Algebra. $1.50. Part II, beginning with quadratics. $1.32. 



Wells's Essentials Of Geometry. (1899.) $1.25. Plane, 75 cts. Solid, 75 cts. 



Wells's Elements of Geometry. Revised. (1894.) $1.25. Plane, 75 cts.; Solid, 75 cts. 



Wells's New Plane and Spherical Trigonometry. For colleges and technical schools. 

 $1.00. With six place tables, $1.25. With Robbins's Surveying and Navigation, $1.50. 



Wells's Essentials of Trigonometry. For secondary schools. 90 cts. With tables, 

 $1.08. Plane, bound separately, 75 cts. 



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



Wells's Four-Place Tables. 25 cts. 



For Arithmetics see our list of hooks in Elementary Mathematics. 



D.C.HEATH & CO., Publishers, Boston, New York, Chicago 



