55 



. /*. m. Sc 

 Brought forward, — 16 21.63 



Longitude of Chicago observing station No. 3, west 



of the naeridian of Greenwich, - + 5 50 31.20 



Longitude of the Toledo observing station, west of 



the meridian of Greenwich, - - -f 5 34 09.57 



Equal, in arc, to ... 83° 32' 23".55 W. 



Latitude, as before, ... 41° 39' 02".26 N. 



From true azimuths from observations on Polaris, with the theo- 

 dolite, and measured distances from the observing station, we are 

 enabled to give the following table of the latitudes and longitudes of 

 positions in the city of Toledo, viz. — 



On the map accompanying the report of Captain Andrew Talcott, 

 of his operations and observations in determining the boundary line 

 between the States of Michigan and Ohio, in the year 1833 (see 

 Doc. No. 497 of the House of Representatives, of the 23d Congress, 

 1st Session), he places Toledo in latitude 41° 38' 43", and in longi- 

 tude 83° 22' 28"=5A. 33m. 29.875. west of Greenwich, as near as 

 we can measure by the map scale. Our latitudes agree well, consi- 

 dering the difference of stations occupied ; but in longitude, my deter- 

 mination places Toledo 9' 50" in arc = 39.335. of time west of the 

 position given to it on Captain Talcott's map, as printed on a scale of 

 5 miles to 1 inch, to accompany his report. This difference in longi- 

 tude is equal to 8.48 statute miles. 



