■m 



Ex. Doc. No. 41. 



271 



APPENDIX No. 5— Continued. 



Time, p.~ln. 



h. m. s. 



3 63 54.0 



3 56 13.5 



3 57 39.0 



•3 58 52.8 



4 00 03.7 

 4 01 09.2 

 4 02 16.8 

 4 11 29.2 

 4 12 37.5 

 4 13 30.2 

 4 14 51.0 

 4 15 62.5 

 4 16 58.1 



September 6, 1846. — Peralta. 



DETERMINATION OF LATITUDE 





Double altitudes of Polaris. 



Deer 



min. sec. 



69 54 30 



69 66 30 



69 57 10 



69 58 40 



69 59 40 



70 00 45 



70 01 20 



70 07 55 



70 09 40 



70 10 10 



70 10 50 



70 11 55 



70 13 00 



Thermometer 56°. 



Latitude. 



Dcg 



mm, sec 





34 





34 



F 



.34 





34 



1 



34 



^ 



34 





34 



J 



34 





34 





34 



34 50 49 



34 50 65 



34 50 66 



.50 66 



50 69 



1 06 



60 57 



50 68 



51 05 

 50 69 

 50 47 



50 65 



51 03 



' h 



Mean of 13 observations, 34° 50' 57 



If 



K^ 



4 



m 



f 



flip 





