WORKS PUBLISHED BY 



First Book Of Natural PhilOSOphy; or, an Introduction to the Study of 

 Statics, Dynamics, Hydrostatics, and Optics, with numerous examples Bv 

 SAMUEL NEWTH, M.A., Fellow of University College, London. 12mo, 3s. Qd. 



Elements of Mechanics and Hydrostatics. By SAMUEL x*m M.A. 



Second Edition, small 8vo, 7s. 6d. cloth. 



A Handbook of Natural Philosophy. ByDioNYsms LARDNER,D.C.L., 



Formerly Professor of Natural Philosophy and Astronomy in University College 

 London. A New Edition, revised and greatly enlarged, with several hundred 

 additional Illustrations. To appear in 18 Monthly Parts, at Is., and in 4 

 Volumes (one every two months), 5s. each, cloth lettered. Being a series of 

 Treatises composed in a popular and generally intelligible style, independently 

 of the language and symbols of Mathematics. 



Mechanics. One Volume, 5s. Ready. 

 Hydrostatics, Pneumatics, and Heat. 

 One Volume, 5s. Heady. 



Optics. One Volume, 5s. Ready. 

 Electricity, Magnetism, and Acoustics. 

 One Volume, 5*. (June.) 



Dr. Lardner's Handbook of Astronomy. From the "Handbook of 



Natural Philosophy and Astronomy." 37 Plates and 200 Woodcuts. Large 12mo 

 16s. 6d. cloth. 



Lardner's Handbook of Natural Philosophy and Astronomy. 



The foil owing Volumes of the First Edition are still on Sale. 



SECOND COURSE, One Vol., 8s. 6d. , contains : Heat ; Common Elec- 

 tricity ; Magnetism ; Voltaic Electricity. THIRD COURSE One Vol., 

 16s. 6d., contains : Astronomy and Meteorology. With 37 Plates and 200 

 Woodcuts. *** Either volume may be purchased separately. 



MATHEMATICS, &c, 



gLEMENTS Of Arithmetic. By AUGUSTUS DE MORGAN, Professor of Mathe- 

 matics in University College, London. Fifth Edition, with Eleven Appendixes 

 Eoyal 12mo, 5s cloth. 



De Morgan's Trigonometry and Double Algebra. Royal i2mo. 



7s. 6d. cloth. 



Barlow's Tables of Squares, Cubes, Square Roots, Cube Roots, 



AND RECIPROCALS, up to 10,000. Stereotype Edition, examined and cor- 

 rected. Under the superintendence of the Society for the Diffusion of Useful 

 Knowledge. Royal 12mo, cloth, 8s. 



Arithmetical Books and Authors. From the Invention of Printing to 

 the present time ; being Brief Notices of a large Number of Works drawn up 

 from actual inspection. By AUGUSTUS DE MORGAN, Professor of Mathematics in 

 University College, London. Cheap issue. Royal 12mo, 2s. 6d. cloth. 



A Course of Arithmetic as Taught in the Pestalozzian School, 



WORKSOP. By J. L. ELLENBEEGER. 12mo, 5s. cloth. A KEY to Ditto, Is. 6d. 



The First Book of Euclid Explained to Beginners. Bye. p. 



MASON, B.A., Fellow of University College, and Principal of Denmark Hill 

 Grammar School. Fcap. Svo, Is. Qd. cloth. 



The Geometry of the First Three Books of Euclid. By direct 



proof from Definitions alone. With an Introduction on the Principles of the 

 Science. By HEN-SLEIGH WEDGWOOD, M.A., late Fellow of Christ's College, 

 Cambridge. 12mo, 2s. 6d. 



Reiner's Lessons on Form ; or, an Introduction to Geometry, 



as given in a Pestalozzian School, Cheam, Surrey. 12mo, with numerous 

 Diagrams, 3s. 6d. cloth. 



A First Book On Plane Trigonometry. Geometrical Trigonometry, 

 and its applications to Surveying, with numerous Examples. For the use of 

 Schools. By G. W. HEMMING, M.A., Fellow of St. John's College, Cambridge, 

 and Author of a Treatise on the "Differential and Integral Calculus. " With 

 Diagrams, 12mo, cloth limp, Is. tid. 



