Parsons’s Disposal of Municipal Refuse 8vo, 2 00 Patton’s Treatise on Civil Engineering 8vo, half 7 50 leather, Reed’s Topographical Drawing and Sketching 4to, 5 00 Riemer’s Shaft-sinking under Difficult Conditions. 8vo, 3 00 (Corning and Peele.) Siebert and Biggin’s Modern Stone-cutting and Masonry 8vo, 1 50 Smith’s Manual of Topographical Drawing. (McMillan.) 8vo, 2 50 Soper’s Air and Ventilation of Subways 12mo, 2 50 * Tracy’s Exercises in Surveying 12mo, mor. 1 00 Tracy’s Plane Surveying 16mo, mor. 3 00 Venable’s Garbage Crematories in America 8vo, 2 00 Methods and Devices for Bacterial Treatment of 8vo, 3 00 Sewage Wait’s Engineering and Architectural Jurisprudence 8vo, 6 00 Sheep, 6 50 Law of Contracts 8vo, 3 00 Law of Operations Preliminary to Construction in 8vo, 5 00 Engineering and Architecture Sheep, 5 50 Warren’s Stereotomy—Problems in Stone-cutting 8vo, 2 50 * Waterbury’s Vest-Pocket Hand-book of Mathematics 2⅞ × 5⅜ 1 00 for Engineers. inches, mor. * Enlarged Edition, Including Tables mor. 1 50 Webb’s Problems in the Use and Adjustment of 16mo, mor. 1 25 Engineering Instruments. Wilson’s Topographic Surveying 8vo, 3 50 BRIDGES AND ROOFS. Boller’s Practical Treatise on the Construction of 8vo, 2 00 Iron Highway Bridges. * Thames River Bridge Oblong 5 00 paper, Burr and Falk’s Design and Construction of Metallic 8vo, 5 00 Bridges Influence Lines for Bridge and Roof Computations 8vo, 3 00 Du Bois’s Mechanics of Engineering. Vol. II Small 4to, 10 00 Foster’s Treatise on Wooden Trestle Bridges 4to, 5 00 Fowler’s Ordinary Foundations 8vo, 3 50 Greene’s Arches in Wood, Iron, and Stone 8vo, 2 50 Bridge Trusses 8vo, 2 50 Roof Trusses 8vo, 1 25 Grimm’s Secondary Stresses in Bridge Trusses 8vo, 2 50 Heller’s Stresses in Structures and the Accompanying 8vo, 3 00 Deformations Howe’s Design of Simple Roof-trusses in Wood and 8vo, 2 00 Steel