NEARLY READY, 
WETS DACHS ENGINEERING. 
WITH ABOUT 1000 SPLENDID 
TNT T A 
ENGRAVINGS. 
PRINCIPLES 
THE MEC HetoNeteGs 
MACHINERY AND ENGINEERING 
BY PROF. JULIUS WEISBACH. 
EDITED BY 
PROFESSOR W. R. JOHNSON, OF PHILADELPHIA. 
Volume I. contains about 550 pages. 
Volume II., completing the work, will be shortly ready. 
app atTarontc ’ ; 
DL Es UO LIVES LN iO aw Bs VV ODF 
