ben CoHCN • I90S 
Entered at Chicago Post-Office as Second Class Matter. 
Published Monthly by R. J. Haight, 324 Dearborn St., Chicago. 
Vol. XVII. No. 3. 
MAY, 1907 
„ , . . 111.00 Per Year 
Subscription - Foreign, $1.25 
( Canada, $1.25 
CHARLES ELTOT MEMORIAL BRIDGE. BOSTON METROPOLITAN PARK SYSTEM. 
(See page 63.) 
