5J> 

 H-3ST 



R3.I 



nil 



SD 435.R3i r i9T9 iVerSi,yL,brary 

 ' m-™»K of the ec °nomic woods of 



3 1924 003 943 622 



QJotttell Hmoetatty ffiihtary 



3thaca, New fork 



BOUGHT WITH THE INCOME OF THE 



SAGE ENDOWMENT FUND 



THE GIFT OF 



HENRY W. SAGE 



I89I 



FNfJNEERING LIBRARY 



