474 



Eighth Annual Report of the 



TABLE 19. 



Dates of opening navigaiio7i in the St. Lawrence river, at Ogdens- 

 hurgh^ from 1832 to 1892, and dates of closing navigation from 

 1832 to 1870. Records from 1832 to 1S70 from New Torh 

 Regents' Rei^orts. Remaining records from the Collector of 

 Customs, Ogdenshurg. 



