O D. VAN XOSTRAND'S PUBLICATK NS. 



LOCKWOOD (THOS. D.) Electricity, Magnetism, and Elec- 

 tro- Telegraphy. A Practical Guide for Students, Operators, 

 and Inspectors. 8vo, cloth g 2 <v> 



LORING (A. E.) A Hand-Book on the Electro-Magnetic Tele- 

 graph. Paper boards eo 



Cloth « 



Morocco I oo 



MacCORD (Prof. C. W ) A Practical Treatise on the Slid* 

 Valve by Eccentrics, examining by methods the acticn of 

 the Eccentric upon the Slide-Valve, and explaining the prac- 

 tical processes of laying out the movements, adapting; th% 

 valve for its various duties in the steam-engine. Second edi- 

 tion Illustrated, dto, cioth 250 



McCUI.LOCH (Prof. R S.) Elemertary Treatise on the Me- 

 chanical Theory of Heat, and its application to Air and 

 Steam Engines. 8vo, cloth . . 3 50 



MERRILL (Col. WM. E , U. S. A.) Iron Truss Bridges for 

 Railroads. The method of calculating strains in Trusses, 

 with a careful comparison of the most prominent Trusses, in 

 reference to economy in combination, etc., etc. Illustrated. 

 4to, cloth 500 



MICHAELIS (Capt. O. E., U. S. A.) The Le Boulenge 

 Chronograph, with three lithograph folding plates of illus- 

 trations. 4to, cloth 300 



MICHIE (Prof. P. S.) Elements of Wave Motion relating to 

 Sound antf Light. Text-Hook for the U.S. Military Acade- 

 my. 8vo, cloth, illustrated 500 



MINIFIE (WM.) Mechanical Drawing. A Text-Book of Geo- 

 metrical Drawing for the use of Mechanics and Schools, in 

 which the Definitions and Rules of Geometry are familiarlv 

 explained ; the Practical Problems are arranged, from the 

 most simple to the more complex, and in their description 

 technicalities are avoided as much as possible. With illus- 

 trations for Drawing Plans, Sections, and Elevations of 

 Railways and Machinery; an Introduction to Isometrical 

 Drawirg, and an Essay on Linear Perspective and Shadows. 

 Illustrated with over 200 diagrams engraved on steel. NinJi 

 edition. With an Appendix on the Theory and Application 



of Colors. 8vo, cloth 4 00 



" It is the best work on Dnwing that we have ever seen, ; nd is 

 especially a text-book of Geometrical Drawing for the use of Me- 

 chanics and Schools. No vouna; Mechanic, such as a Machinist, 

 Engineer, Cabinet-mak<-r ; Millwright, or Carpenter, should be with- 

 out it."— .9a<rwrj/f<; American. 



Geometrical Drawing. Abridged Irom the octavo edi- 

 tion, for the use of schools. Illustrated with forty-eight 

 steel plates. Fifth edition, i2mo, cloth 200 



