Niagara Falls 



1890 



Begart 



1890 



Hall 



1890 



Kibbe 



1890 



Leverctt 



1890 



1890 



1890 



BoGART, JOHN. Report on the outline of the crest of the falls of 

 Niagara in 1 890, and the recession of the falls since 1 842. (Ann. 

 rep'ts of the com'rs of the state reserv. at Niagara. Albany: 1891. 

 7:89-94.) 



This report was made by the State Engineer and Surveyor. 



Hall, W. Carvel. Report of survey of the crest line of Niagara 

 Falls. (Ann. rep'ts of the com'rs of the state reserv. at Niagara. 

 1906. 23:67-73.) 



This survey was made in 1 890 and gives a new theory as to the 

 apparent advance of the crest line at some points. 



The determination of the present crest line of the Falls was 

 decided in order that, by comparison with maps of earlier dates, 

 the changes could be determined and the rate of recession 

 computed. 



KlBBE, August S. Report of the survey to determine the crest lines 

 of the falls of Niagara in 1 890, made under the direction of John Bogart, 

 state engineer and surveyor. (Ann. rep'ts of the com'rs of the state 

 reserv. at Niagara. Albany: 1891. 7:95-102.) 



Makes comparison with previous surveys and explanations of 

 discrepancy. 



LEVERETT, Frank. Glacial formations and drainage features of 

 the Erie and Ohio basins. (U. S. geol. surv. Wash.: Gov't, print, 

 off. 1902. Pp. 70-71.) 



This monograph contains a description of the Niagara escarpment. 



New York (state). Surveys of the crest of Niagara Falls. (Ann. 

 rep'ts of the state engineer and surveyor (1890). Albany: J. B. Lyon. 

 1891. Pp. 29-31.) 



This survey was made under the direction of the State Engineer, by 

 Mr. August S. Kibbe, assistant engineer in charge. Comparisons are 

 given with former surveys, and there is a table showing the rate of 

 recession. 



Report of the survey to determine the crest lines of the falls of Niagara 

 in 1890, errata and additional monuments. (Ann. rep'ts of the com'rs 

 of the state reserv. at Niagara. Albany: 1892. 8:64.) 



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