Wood’s Rustless Coatings: Corrosion and Electrolysis of Iron and Steel 8vo, 4 00 =RAILWAY ENGINEERING.= Andrews’s Handbook for Street Railway Engineers. 3×5 inches, morocco, 1 25 Berg’s Buildings and Structures of American Railroads 4to, 5 00 Brooks’s Handbook of Street Railroad Location 16mo, morocco, 1 50 Butts’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 Tunneling, 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 Cubic 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 Webb’s Railroad Construction. 2d Edition, Rewritten 16mo, morocco, 5 00 Wellington’s Economic Theory of the Location of Railways Small 8vo, 5 00 =DRAWING.= Barr’s Kinematics of Machinery 8vo, 2 50 * Bartlett’s Mechanical Drawing 8vo, 3 00 * ” ” ” Abridged Ed. 8vo, 1 50 Coolidge’s Manual of Drawing 8vo, paper, 1 00 Coolidge and Freeman’s Elements of General Drafting for Mechanical Engineers. (_In press._) Durley’s Kinematics of Machines 8vo, 4 00