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YEARBOOK, PUBLIC MUSEUM, MILWAUKEE 



[Vol. III. 



converter, moulds and rolls, until it appeared in the yard, a 33 foot 

 steel rail, ready to be passed upon by the inspector. This steel mill 

 occupied historic ground, being located on the site made famous by 

 Braddock's Defeat in 1755 during the French and Indian War. 



Other industrial plants visited were those of the Pittsburgh Plate 

 Glass Company at Ford City and the H. J. Heinz Company, source 

 of the fifty-odd varieties, at Pittsburgh. 



Fig. 40. — Oil-burning barge in Lock 3.5 of New York State 

 Barge Canal, Lockport, N. Y. 



At Buffalo, New York, transportation on two important canals 

 was considered. Examination was made of the New York State 

 Barge Canal, particularly of the stretch embracing the city of Lock- 

 port, where barges and scows pass through Locks 34 and 35, ascending 

 or descending a vertical distance of 59 feet as seen in figure 40. The 



