Constituents 8vo, 2 50 Thurston’s Text-book of the Materials of Construction 8vo, 5 00 Tillson’s Street Pavements and Paving Materials 8vo, 4 00 Waddell’s De Pontibus. (A Pocket-book for Bridge Engineers.) 16mo, mor., 2 00 Specifications for Steel Bridges 12mo, 1 25 Wood’s (De V.) Treatise on the Resistance of Materials, and an Appendix on the Preservation of Timber 8vo, 2 00 Wood’s (De V.) Elements of Analytical Mechanics 8vo, 3 00 Wood’s (M. P.) Rustless Coatings: Corrosion and Electrolysis of Iron and Steel 8vo, 4 00 RAILWAY ENGINEERING. Andrew’s Handbook for Street Railway Engineers 3×5 inches, morocco, 1 25 Berg’s Buildings and Structures of American Railroads 4to, 5 00 Brook’s Handbook of Street Railroad Location 16mo, morocco, 1 50 Butt’s Civil Engineer’s Field-book 16mo, morocco, 2 50 Crandall’s Transition Curve 16mo, morocco, 1 50 Railway and Other Earthwork Tables 8vo, 1 50 Dawson’s “Engineering” and Electric Traction Pocket-book 16mo, morocco, 5 00 Dredge’s History of the Pennsylvania Railroad: (1879) Paper, 5 00 * Drinker’s Tunnelling, Explosive Compounds, and Rock Drills 4to, half mor., 25 00 Fisher’s Table of Cubic Yards Cardboard, 25 Godwin’s Railroad Engineers’ Field-book and Explorers’ Guide 16mo, mor., 2 50 Howard’s Transition Curve Field-book 16mo, morocco, 1 50 Hudson’s Tables for Calculating the Cubic Contents of Excavations and Embankments 8vo, 1 00 Molitor and Beard’s Manual for Resident Engineers 16mo, 1 00 Nagle’s Field Manual for Railroad Engineers 16mo, morocco, 3 00 Philbrick’s Field Manual for Engineers 16mo, morocco, 3 00 Searles’s Field Engineering 16mo, morocco, 3 00 Railroad Spiral 16mo, morocco, 1 50 Taylor’s Prismoidal Formulæ and Earthwork 8vo, 1 50 * Trautwine’s Method of Calculating the Cube Contents of Excavations and Embankments by the Aid of Diagrams 8vo, 2 00 The Field Practice of Laying Out Circular Curves for Railroads. 12mo, morocco, 2 50 Cross-section Sheet Paper, 25