12 SCIENTIFIC BOOKS PUBLISHED BY 



Slide Valve by Eccentrics, by Prof, 

 C. W. MacCord. 



4to. Illustrated. Cloth, $4.00. 



A PEACTICAL TEEATISE ON THE SLIDE VALYE BY 

 ECCENTEICS, examining by methods, the action of the Eccen- 

 tric upon the Slide Valve, and explaining the practical proces- 

 ses of laying out the movements, adapting the valve for its 

 various duties in the steam-engine. For the use of Engineers, 

 Draughtsmen, Machinists, and Students of valve motions in 

 general. By C. W. MACCORD, A. M., Professor of Mechanical 

 Drawing, Stevens' Institute of Technology, Hoboken, N J. 



Stillman's Steam-Engine Indicator. 



12mo. Cloth. $1.00. 



THE STEAM-ENGINE INDICATOE, and the Improved Mano- 

 meter Steam and Vacuum Gauges ; their utility and application 

 By PAUL STILLMAN. New edition. 



Bacon's Steam-Engine Indicator. 



12mo. Cloth. $1.00. Mor. $1.50. 



A TEEATISE ON THE EICHAEDS STEAM-ENGINE IN- 

 DICATOE, with directions for its use. By CHARLES T. PORTER. 

 Eevised, with notes and large additions as developed by Amer- 

 ican Practice, with an Appendix containing useful formulae and 

 rules for Engineers. By F. W. BACON, M. E., Member of the 

 American Society of Civil Engineers. Illustrated. Second Edition 



In this work, Mr. Porter's book has been taken as the basis, but Mr. Bacon 

 has adapted it to American Practice, and has conferred a great boon, on 

 American Engineers. Artisan. 



Bartol on Marine Boilers. 



8vo. Cloth. $1.50. 



TEEATISE ON THE MAEINE BOILEES OF THE UNITED 

 STATES. By H. B. BARTOL. Illustrated. 



