Wells’s Laboratory Guide in Qualitative Chemical Analysis 8vo, 1 50 Short Course in Inorganic Qualitative Chemical Analysis for Engineering Students 12mo, 1 50 Whipple’s Microscopy of Drinking-water 8vo, 3 50 Wiechmann’s Sugar Analysis Small 8vo, 2 50 Wilson’s Cyanide Processes 12mo, 1 50 Chlorination Process 12mo, 1 50 Wulling’s Elementary Course in Inorganic Pharmaceutical and Medical Chemistry 12mo, 2 00 =CIVIL ENGINEERING.= =BRIDGES AND ROOFS. HYDRAULICS. MATERIALS OF ENGINEERING.= =RAILWAY ENGINEERING.= Baker’s Engineers’ Surveying Instruments 12mo, 3 00 Bixby’s Graphical Computing Table Paper 19½×24¼ inches, 25 ** Burr’s Ancient and Modern Engineering and the Isthmian Canal. (Postage, 27 cents additional.) 8vo, net, 3 50 Comstock’s Field Astronomy for Engineers 8vo, 2 50 Davis’s Elevation and Stadia Tables 8vo, 1 00 Elliott’s Engineering for Land Drainage 12mo, 1 50 Practical Farm Drainage 12mo, 1 00 Folwell’s Sewerage. (Designing and Maintenance.) 8vo, 3 00 Freitag’s Architectural Engineering. 2d Edition, Rewritten 8vo, 3 50 French and Ives’s Stereotomy 8vo, 2 50 Goodhue’s Municipal Improvements 12mo, 1 75 Goodrich’s Economic Disposal of Towns’ Refuse 8vo, 3 50 Gore’s Elements of Geodesy 8vo, 2 50 Hayford’s Text-book of Geodetic Astronomy 8vo, 3 00 Hering’s Ready Reference Tables (Conversion Factors) 16mo, morocco, 2 50 Howe’s Retaining Walls for Earth 12mo, 1 25 Johnson’s Theory and Practice of Surveying Small 8vo, 4 00 Statics by Algebraic and Graphic Methods 8vo, 2 00 Kiersted’s Sewage Disposal 12mo, 1 25 Laplace’s Philosophical Essay on Probabilities. (Truscott and Emory.) 12mo, 2 00 Mahan’s Treatise on Civil Engineering. (1873.) (Wood.) 8vo, 5 00 * Descriptive Geometry 8vo, 1 50 Merriman’s Elements of Precise Surveying and Geodesy 8vo, 2 50 Elements of Sanitary Engineering 8vo, 2 00 Merriman and Brooks’s Handbook for Surveyors 16mo, morocco, 2 00 Nugent’s Plane Surveying 8vo, 3 50 Ogden’s Sewer Design 12mo, 2 00