Sondericker’s Graphic Statics with Applications to Trusses, Beams, and Arches. 8vo, 2 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 Wood’s Rustless Coatings: Corrosion and Electrolysis of Iron and Steel 8vo, 4 00 Woodbury’s Fire Protection of Mills 8vo, 2 50 Worcester and Atkinson’s Small Hospitals, Establishment and Maintenance, Suggestions for Hospital Architecture, with Plans for a Small Hospital. 12mo, 1 25 The World’s Columbian Exposition of 1893 Large 4to, 1 00 =ARMY AND NAVY.= Bernadou’s Smokeless Powder, Nitro-cellulose, and the Theory of the Cellulose Molecule 12mo, 2 50 *Bruff’s Text-book Ordnance and Gunnery 8vo, 6 00 Chase’s Screw Propellers and Marine Propulsion 8vo, 3 00 Craig’s Azimuth 4to, 3 50 Crehore and Squire’s Polarizing Photo-chronograph 8vo, 3 00 Cronkhite’s Gunnery for Non-commissioned Officers 24mo, morocco, 2 00 * Davis’s Elements of Law 8vo, 2 50 * Treatise on the Military Law of United States 8vo, 7 00 Sheep, 7 50 De Brack’s Cavalry Outpost Duties. (Carr.) 24mo, morocco, 2 00 Dietz’s Soldier’s First Aid Handbook 16mo, morocco, 1 25 * Dredge’s Modern French Artillery 4to, half morocco, 15 00 Durand’s Resistance and Propulsion of Ships 8vo, 5 00 * Dyer’s Handbook of Light Artillery 12mo, 3 00 Eissler’s Modern High Explosives 8vo, 4 00 * Fiebeger’s Text-book on Field Fortification Small 8vo, 2 00 Hamilton’s The Gunner’s Catechism 18mo, 1 00 * Hoff’s Elementary Naval Tactics 8vo, 1 50 Ingalls’s Handbook of Problems in Direct Fire 8vo, 4 00 * Ballistic Tables 8vo, 1 50 * Lyons’s Treatise on Electromagnetic Phenomena. Vols. I. and II. 8vo, each, 6 00 * Mahan’s Permanent Fortifications. (Mercur.) 8vo, half morocco, 7 50 Manual for Courts-martial 16mo, morocco, 1 50 * Mercur’s Attack of Fortified Places 12mo, 2 00