Telescope—Mirror-scale Method, Adjustments, and 8vo, 0 75 Tests. Large * Hutchinson’s High-Efficiency Electrical Illuminants Large 12mo, 2 50 and Illumination * Jones’s Electric Ignition 8vo, 4 00 Karapetoff’s Experimental Electrical Engineering: * Vol. I. 8vo, 3 50 * Vol. II. 8vo, 2 50 Kinzbrunner’s Testing of Continuous-current Machines 8vo, 2 00 Landauer’s Spectrum Analysis. (Tingle.) 8vo, 3 00 Lob’s Electrochemistry of Organic Compounds. 8vo, 3 00 (Lorenz.) * Lyndon’s Development and Electrical Distribution of 8vo, 3 00 Water Power * Lyons’s Treatise on Electromagnetic Phenomena. 8vo, each, 6 00 Vols. I. and II. * Michie’s Elements of Wave Motion Relating to Sound 8vo, 4 00 and Light * Morgan’s Physical Chemistry for Electrical 12mo, 1 50 Engineers * Norris’s Introduction to the Study of Electrical 8vo, 2 50 Engineering Norris and Dennison’s Course of Problems on the Electrical Characteristics of Circuits and Machines. (In Press.) * Parshall and Hobart’s Electric Machine Design 4to, half 12 50 mor. Reagan’s Locomotives: Simple, Compound, and Electric. Large 12mo, 3 50 New Edition * Rosenberg’s Electrical Engineering. (Haldane 8vo, 2 00 Gee—Kinzbrunner.) * Ryan’s Design of Electrical Machinery: * Vol. I. Direct Current Dynamos 8vo, 1 50 Vol. II. Alternating Current Transformers. (In Press.) Vol. III. Alternators, Synchronous Motors, and Rotary Convertors. (In Preparation.) Ryan, Norris, and Hoxie’s Text Book of Electrical 8vo, 2 50 Machinery Schapper’s Laboratory Guide for Students in Physical 12mo, 1 00 Chemistry * Tillman’s Elementary Lessons in Heat 8vo, 1 50 * Timbie’s Elements of Electricity Large 12mo, 2 00 * Answers to Problems in Elements of Electricity 12mo, Paper 0 25 Tory and Pitcher’s Manual of Laboratory Physics Large 12mo, 2 00 Ulke’s Modern Electrolytic Copper Refining 8vo, 3 00 * Waters’s Commercial Dynamo Design 8vo, 2 00 LAW. * Brennan’s Hand-book of Useful Legal Information for 16mo, mor. 5 00 Business Men * Davis’s Elements of Law 8vo, 2 50 * Treatise on the Military Law of United States 8vo, 7 00 * Dudley’s Military Law and the Procedure of Large 12mo, 2 50 Courts-martial Manual for Courts-martial 16mo, mor. 1 50