44 



N. TV. Point of the Lake of the Woods. 



Mr. Thompson's Monument No. 1. 



Circummeridian Observations of the SunPs i Index error — 7" 5 

 Altitude for determining the Latitude. ^Thermometer 75° 



Time by Arnold Double Alt.of Sun's Time by Arnold Double Alt.of Sun's 



2111. L. L. 



2111. 



July 27. Oh 0' 40"2 



1 29 



2 15 

 4 2 



14 33 



17 12 



^ 18 11 



^ 19 6 



July 27. 0h6'58"2 



7 6 2 



8 16 2 



10 27 3 



11 12 3 



12 17 



13 3 3 



119° 6' 30" 

 6 35 

 6 15 

 5 

 4 

 4 

 3 



15 



50 



5 



10 



30' 



19 



10' 52" 70 



27 90 



11 43 00 



Result: Zenith distance of Sun's centre at noon, 

 Refraction less parallax, 

 Sun's declination, - _ _ 



Latitude of Thompson's Monument No. I, 49 23 3 60 

 I arrived at Mr. T.'s monument near noon ; it was cloudy the 

 whole afternoon, and consequently no observations for determin- 

 ing the time were made this day, (July 27-) 



Mr. Thompson's Monument No. 1. 

 Circummeridian Observations of the ( Index error + 2"|- 

 Sun for determining the Latitude. \ Thermometer 75"* 



Result: Zenith distance of Sun's centre at noon, 

 Refraction less parallax. 

 Sun's declination, 



Latitude of Mr. Thompson's Monument No. 1, 



30° 24' 45" 80 



28 22 



18 57 55 22 



'49 23 9 24 



