* Bovey's Strength of Materials and Theory of Structures. 8vo, 7 50 Burr's Elasticity and Resistance of the Materials of Engineering. 6th Edition. Reset. 8vo, 7 50 Church's Mechanics of Engineering. 8vo, 6 00 * Greene's Structural Mechanics. 8vo, 2 50 Johnson's Materials of Construction. 8vo, 6 00 Keep's Cast Iron. 8vo, 2 50 Lanza's Applied Mechanics. 8vo, 7 50 Martens's Handbook on Testing Materials. (Henning.) 8vo, 7 50 Maurer's Technical Mechanics. 8vo, 4 00 Merriman's Mechanics of Materials. 8vo, 5 00 * Strength of Materials 12mo, 1 00 Metcalf's Steel. A Manual for Steel-users. 12mo, 2 00 Sabin's Industrial and Artistic Technology of Paints and Varnish. 8vo, 3 00 Smith's Materials of Machines. 12mo, 1 00 Thurston's Materials of Engineering. 3 vols., 8vo, 8 00 Part II. Iron and Steel. 8vo, 3 50 Part III. A Treatise on Brasses, Bronzes, and Other Alloys and their Constituents. 8vo, 2 50 Wood's (De V.) Treatise on the Resistance of Materials and an Appendix on the Preservation of Timber. 8vo, 2 00 Elements of Analytical Mechanics. 8vo, 3 00 Wood's (M. P.) Rustless Coatings: Corrosion and Electrolysis of Iron and Steel. 8vo, 4 00 STEAM-ENGINES AND BOILERS.