xii Astronomical and Meteorological Records^ ^c. 



Observations at our Camp on the Missouri river. 



June 28, 1819. 



Meridian double altitude of 

 sun's lower limb 



Latitude deduced 



149° 06' 25" 



38 34 33 N. 



Magnetic dip at Cote Sans Dessein, Missouri, ) i -,^o „, 

 July 6 - - - - ^ j /u ou 



Observations made at Franklin, Howard County, Missouri. 



Equal altitudes of Sun to find error of Time-piece at noon. 



Time from Noon, 



'July 16, 1819. 



July 16, 1819. 



July 17, 1819. 



Time from Noon, 

 A. M. 



4h 14' 26" 

 4 13 G5^ 

 4 11 46 



P. M. 



22' 051" ^ 



20 45 y 



19 241 J 



Meridian double altitude of 

 sun's lower limb 



Latitude deduced 



Meridian double altitude of 

 sun's lower limb - , 



Latitude deduced 



Error of Time- 

 piece. 



r 41" 17'" slow. 

 Mean time. 



144° 29' 30" 



38 56 57 N. 



144 10 15 



38 56 45 N. 



The following are means of three sets of lunar distances of Moon from 



Sun, taken at Franklin, Missoun. 



Time per Chro- Distance of nearest 



nometer, A.M. 



limbs 



July 16, 1819. S'' 08' 35|" 



16, 8 15 52 



17, 8 29 041 



Magnetic dip at Franklin, July i; 



62° 23 

 62 20 

 50 46 



3' 11"! 

 52^ \ 

 6 18 J 



Index error cor- 

 rected. 



69° 30' 



Equal altitudes of Sun to find error of Time-piece at noon. 



I Time from Noon, 



A. M. 



July 17, 1819. 



July 18, 1819. 



3" 03' 381" 

 3 02 17 

 3 00 56 



rime from Noon, 

 P. M. 



" 10' 141" 1 

 08 53 \ 

 07 SO J 



Meridian double altitude of< 

 sun's lower limb - < 



Latitude deduced - 



Error of Time- 

 piece. 



2' 20" slow. 

 Mean time. 



143° 47' 41" 



38 57 46 N. 



