12mo, 3 00 Johnson's (L. J.) Statics by Graphic and Algebraic Methods. 8vo, 2 00 Jones's Machine Design: Part I. Kinematics of Machinery. 8vo, 1 50 Part II. Form, Strength, and Proportions of Parts. 8vo, 3 00 Kerr's Power and Power Transmission. 8vo, 2 00 Lanza's Applied Mechanics. 8vo, 7 50 Leonard's Machine Shop, Tools, and Methods. 8vo, 4 00 * Lorenz's Modern Refrigerating Machinery. (Pope, Haven, and Dean.) 8vo, 4 00 MacCord's Kinematics; or, Practical Mechanism. 8vo, 5 00 Velocity Diagrams. 8vo, 1 50 * Martin's Text Book on Mechanics, Vol. 1, Statics. 12mo, 1 25 * Vol. 2, Kinematics and Kinetics. 12mo, 1 50 Maurer's Technical Mechanics. 8vo, 4 00 Merriman's Mechanics of Materials. 8vo, 5 00 * Elements of Mechanics. 12mo, 1 00 * Michie's Elements of Analytical Mechanics. 8vo, 4 00 * Parshall and Hobart's Electric Machine Design. 4to, half morocco, 12 50 Reagan's Locomotives: Simple, Compound, and Electric. New Edition. Large 12mo, 3 50 Reid's Course in Mechanical Drawing. 8vo, 2 00 Text-book of Mechanical Drawing and Elementary Machine Design. 8vo, 3 00 Richards's Compressed Air. 12mo, 1 50 Robinson's Principles of Mechanism. 8vo, 3 00 Ryan, Norris, and Hoxie's Electrical Machinery. Vol. I. 8vo, 2 50 Sanborn's Mechanics: Problems. Large 12mo, 1 50 Schwamb and Merrill's Elements of Mechanism. 8vo, 3 00 Sinclair's Locomotive-engine Running and Management. 12mo, 2 00 Smith's (O.) Press-working of Metals. 8vo, 3 00 Smith's (A. W.) Materials of Machines. 12mo, 1 00 Smith (A. W.) and Marx's Machine Design. 8vo, 3 00 Sorel's Carbureting and Combustion of Alcohol Engines. (Woodward and Preston.) Large 8vo, 3 00 Spangler, Greene, and Marshall's Elements of Steam-engineering. 8vo, 3 00 Thurston's Treatise on Friction and Lost Work in Machinery and Mill Work. 8vo, 3 00 Animal as a Machine and Prime Motor, and the Laws of Energetics. 12mo, 1 00