Astronomical and Meteorological Records, ^c. 



XV 



Aug. 20, 1819. 



Meridian double altitude of 

 sun's lower limb 



Latitude deduced 



Latitude of Cow Island by a mean of the pre- 

 cedins; observations ... 



Aug. 22, 1819. 



Magnetic dip at Cow Island 



Magnetic azimuth of sun's cen- 

 tre, A. M. 



Do. do. P. M. same alt. 



Time elapsed between the ob- 

 servations 



Magnetic variation deduced 



125° 48' 30" 



S. 100° 08' E. 

 S. 77 00 W. 

 Qh 44' 



11° 32' 37" E. 



Observations at our Cawp on Missouri river. 



Aug. 31,1819. 



Meridian double altitude of 

 sun's lower limb 



Latitude deduced 



117° 25' 00" 



39 49 01 N. 



Observations at the Missouri Fur Company^s Establishment, (Fort 



Lisa.) 



Sept. 19, 1819. 



Meridian double altitude of 

 sun's lower limb 



Latitude deduced 



99° 55' 19" 



41 24 13 N. 



Observations made at Engineer Cantonment, the wintering 

 POST OF the Exploring Expedition, in 1819 — 20. 

 Meridian double altitude of 

 sun's lower limb 



Sept. 21, 1819. 



Sept. 22, 1819. 



Sept. 22, 1819. 



Index error, — 40" latitude 

 deduced 



Magnetic azimuth of sun's cen 



tre, A. M. 

 Do. Do. P. M. id. alt 



Time elapsed between the ob 



servations 



Magnetic variation deduced 



Meridian double altitude of 

 sun's lower limb 



98° 20' 35" 



41 25 05 N. 



S.85° 55' E. 

 S.59 45 W. 

 8" 32' 



lS°58'49i"E. 



97 33 45 



