* Trautwine’s Civil Engineer’s Pocket-book 16mo, morocco, 5 00 Wait’s Engineering and Architectural Jurisprudence 8vo, 6 00 Sheep, 6 50 Law of Operations Preliminary to Construction in Engineering and Architecture 8vo, 5 00 Sheep, 5 50 Law of Contracts 8vo, 3 00 Warren’s Stereotomy—Problems in Stone-cutting 8vo, 2 50 Webb’s Problems in the Use and Adjustment of Engineering Instruments. 16mo, morocco, 1 25 Wilson’s Topographic Surveying 8vo, 3 50 BRIDGES AND ROOFS. Boller’s Practical Treatise on the Construction of Iron Highway Bridges 8vo, 2 00 * Thames River Bridge 4to, paper, 5 00 Burr’s Course on the Stresses in Bridges and Roof Trusses, Arched Ribs, and Suspension Bridges 8vo, 3 50 Burr and Falk’s Influence Lines for Bridge and Roof Computations 8vo, 3 00 Design and Construction of Metallic Bridges 8vo, 5 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 Roof Trusses 8vo, 1 25 Bridge Trusses 8vo, 2 50 Arches in Wood, Iron, and Stone 8vo, 2 50 Howe’s Treatise on Arches 8vo, 4 00 Design of Simple Roof-trusses in Wood and Steel 8vo, 2 00 Johnson, Bryan, and Turneaure’s Theory and Practice in the Designing of Modern Framed Structures Small 4to, 10 00 Merriman and Jacoby’s Text-book on Roofs and Bridges: Part I. Stresses in Simple Trusses 8vo, 2 50 Part II. Graphic Statics 8vo, 2 50 Part III. Bridge Design 8vo, 2 50 Part IV. Higher Structures 8vo, 2 50 Morison’s Memphis Bridge 4to, 10 00 Waddell’s de Pontibus, a Pocket-book for Bridge Engineers 16mo, morocco, 2 00 Specifications for Steel Bridges 12mo, 1 25 Wright’s Designing of Draw-spans. Two Parts in one volume 8vo, 3 50 HYDRAULICS.