MacCord's Elements of Descriptive Geometry 8vo, 



Kinematics; or. Practical Mechanism. 8vo, 



Mechanical Drawing 4to, 



Velocity Diagrams 8vo, 



* Mahan's Descriptive Geometry and Stone-cutting 8vo, 



Industrial Drawing. (Thompson.) 8vo, 



Reed's Topographical Drawing and Sketching 4 to, 



Reid's Course in Mechanical Drawing 8vo, 



Text-book of Mechanical Drawing and Elementary Machine Design . . 8vo, 



Robinson's Principles of Mechanism 8vo, 



Smith's Manual of Topographical Drawing. (McMillan.) 8vo, 



Warren's Elements of Plane and Solid Free-hand Geometrical Drawing . .iimo, 



Drafting Instruments and Operations 1 2mo, 



Manual of Elementary Projection Drawing i2mo. 



Manual of Elementary Problems in the Linear Perspective of Form and 



Shadow nmo, 



Plane Problems in Elementary Geometry nmo, 



Primary Geometry nmo, 



Elements of Descriptive Geometry, Shadows, and Perspective 8vo, 



General Problems of Shades and Shadows ■ 8vo, 



Elements of Machine Construction and Drawing 8vo, 



Problems, Theorems, and Examples in Descriptive Geometrv 8vo, 



Weisbach's Kinematics and the Power of Transmission. (Hermann and 



Klein.) 8vo, 5 00 



Whelpley's Practical Instruction in the Art of Letter Engraving nmo, 2 00 



Wilson's Topographic Surveying 8vo , 3 50 



Free-hand Perspective 8vo, 2 50 



Free-hand Lettering. 8vo, 1 00 



Woolf's Elementary Course in Descriptive Geometry. Large 8vo, 3 00 



ELECTRICITY AND PHYSICS. 



Anthony and Brackett's Text-book of Physics. (Magie.) Small 8vo, 



Anthony's Lecture-notes on the Theory of Electrical Measurements nmo, 



Benjamin's History of Electricity 8vo> 



Voltaic CelL 8vo, 



Classen's Quantitative Chemical Analysis by Electrolysis. (Boltwood,)- 8vo, 



Crehore and Sauier's Polarizing Photo-chronograph Svo, 



Dawson's "Engineering" and Electric Traction Pocket-book. . i6mo, morocco, 

 Dolezalek's Theory of the Lead Accumulator. (Storage Battery.) 

 {Shortly.) (Von Ende.) 



Duhem's Thermodynamics and Chemistry. (Burgess.) 8vo, 



Flather's Dvnamo meters, and the Measurement of Power nmo, 



Gilbert's De Magnete. (Mottelay.) 8vo, 



Hanchett's Alternating Currents Explained. (Shortly.) 



Holman's Precision of Measurements 8vo, 



Telescopic Mirror-scale Method, Adjustments, and Tests. .... Large 8vo, 



Lanaauer's Spectrum Analysis. (Tingle.) 8vo, 



Le Chatelier's High-temperature Measurements. (Boudouard — Burgess. )nmo, 

 LoVs Electrolysis and Electrosynthesis of Organic Compounds. (Lorenz.) nmo, 



* Lyons's Treatise on Electromagnetic Phenomena. Vols. I. and II. 8vo, each, 



* Michie. Elements of Wave Motion Relating to Sound and Light 8vo, 



Niaudet's Elementary Treatise on Electric Batteries. (FishDack. ) nmo, 



* Parshall and Hobart's Electric Generators Small 4T0. half morocco, xo 00 



* Rosenberg's Electrical Engineering. (Haldane Gee — Kinzbrunner.) 8vo, 



Ryan, Norris, and Hoxie's Electrical Machinery. Vol. 1 8vo, 



Thurston's Stationary Steam-engines 8vo, 



* Tillman's Elementary Lessons in Heat 8vo, 



9 



