114 



In Talcott's map, accompanying his report on the survey of the 

 Michigan and Ohio boundary of 1833, he lays down the position of 

 Michigan City in latitude 41° 43' 10". 8 N., and in longitude 86° 43' 

 26". 9 = 5A. 46m. 53s.8' W. By our observations, his station, here, 

 appears to be in latitude 41° 43' 10".52 N., and in longitude 86° 54' 

 24" = 5/i. 47m. 375.6 W. While there is a remarkable agreement 

 in our observations of the latitude, we place the longitude 43s.76 of 

 time, = 10' 56". 4 in arc, = 9.42 miles, west of the position assigned 

 to it on Talcott's map. 

 Captain Talcott, in his report, gives 



the longitude of the south bend of o / /< '*• ^* ^* 



Lake Michigan, - - 87 09 06 = 5 48 36.4 



By applying our difference of longi- 

 tude, found at Michigan City, viz: 



-f 10' 56".4 = -f 43S.76 



We assume, for the approximate longi- 

 tude of the south bend of Lake 

 Michigan, until we can have an 

 opportunity of connecting it by ob- 

 servation with our primary meri- 

 dian of Chicago, 



The latitude of this bend, is no doubt 

 very accurately stated by Talcott, 

 at . - - - 



87 20 02.4 = 5 49 20.16 



41 37 07.9 N. 



