12 SCIENTIFIC HOOKS PUBLISHED BY 
Slide Valve by Eccentrics, by Prof. 
C. W. MacCord. 
4to. Illustrated. Cloth, $4.00. 
A PRACTICAL TEEATISE ON THE SLIDE YALYE BY 
ECOENTRICS, examining by methods, tlie action of the Eccen- 
tric upon tbe Slide Valve, and explaining the practieal 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 0. "W. MacCorb, A. M., Professor of Meehanieal 
Drawing, Stevens’ Institute of Technology, Hoboken, N J. 
Stillman’s Steam-Engine Indicator. 
12mo. Cloth. $1.00. 
THE STEAM-ENGINE INDICATOR, and the Improved Mano 
meter Steam and Yacuum Gauges; their utility and application 
By Paux Stixxman. New edition. 
Bacon’s Steam-Engine Indicator. 
12mo. Cloth. $1.00. Mor. $1.50. 
A TEEATISE ON THE RICHARDS STEAM-ENGINE IN 
DICATOR, with directions for its use. By Charles T. Porter. 
Revised, with notes and large additions as developed by Amer 
ican Practice, with an Appendix containing nseful formulse and 
rules for Engineers. By E. 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 eonferred a great boon on 
American Engineers.—Artisan. 
Steam Boiler Explosions. 
18mo. Boards. 50 cts. 
STEAM BOILER EXPLOSIONS. By Zerah Colbcrn. 
“ It is full of practieal Information, and serves to show in a most marked 
manner how very little one’s knowledge upon the subject has advanced during 
tbe past ten years.”—N. Y. Times.