152 



REPORT ON THE STATE CABINET. 



2. Determination of Latitude. 



For eliminating constant errors, which arise in determining latitudes 

 by altitudes when these are taken only on one side (north or south) 

 of the zenith, a series of altitudes of the sun was combined with one of 

 the polar star. 



CmCUMMERlDlAN ALTITUDES OF O. 



1865. September 3. ©. 



^""01 i**^"n r\'rv* f^tr^vt 



Double altitude 





Corrected 



altitude of 



sun's center. 



Resulting Latitude. 



t^xiionoir 





by Sextant. 



a 



5 



lower limb. 



upper limb. 



h. 



m. 



sec. 



deg. 



m. 



sec. 



deg. 



m^ 



sec. 



deg. 



m. 



sec. 



deg. 



m. 



sec. 



10 



41 



13.5 



. 108 



50 



10 



L 



54 



38 



14 



42 



14 



59.0 



42 







10 



43 



37.0 



109 







2 



L 



54 



43 



10 



42 



15 



13.0 



42 





.... 



10 



45 



40.0 



110 



12 



57 



u 



54 



47 



51 



42 



, , 



. • . • 



42 



14 



29!o 



10 



48 



30.0 



110 



24 



5 



u 



54 



53 



25 



42 





■ ■ ■ • 



42 



13 



50.0 



10 



50 



54.0 



110 



31 



38 



u 



54 



57 



11 



42 





• B ■ ■ 



42 



13 



41.0 



10 



52 



43.5 



110 



35 



55 



u 



54 



59 



20 



42 





.... 



42 



13 



58.0 



10 



55 



31.0 



109 



37 







L 



55 



1 



40 



42 



14 



51.0 



42 



, , 



.... 



10 



57 



44.0 



109 



42 



30 



L 



55 



4 



24 



42 



14 



13.0 



42 





.... 



11 







31.0 



109 



45 



15 



L 



55 



5 



47 



42 



14 



52.0 



42 



, , 



.... 



11 



2 



57.0 



109 



47 



52 



L 



55 



7 



6 



42 



14 



49.0 



42 



, , 



.... 



11 



4 



56.5 



110 



54 



40 



U 



55 



8 



43 



42 





• • . . 



42 



13 



52.0 



11 



6 



45.0 



110 



54 



40 



u 



55 



8 



43 



42 



, ^ 



• • ■ . 



42 



14 



10.0 



11 



8 



26.5 



110 



54 



30 



u 



55 



8 



37 



42 



, , 



■ . . • 



42 



14 



18.0 



11 



10 



34.5 



110 



53 



55 



u 



55 



8 



20 



42 





■ • • • 



42 



14 



18.0 



11 



22 



59.0 



109 



30 







L 



54 



58 



10 



42 



15 



18.0 



42 



, , 



.... 



11 



24 



48.0 



109 



25 



40 



L 



54 



56 







42 



15 



3.0 



42 



, , 



.... 



11 



27 



9.5 



109 



18 



55 



L 



54 



52 



37 



42 



14 



55.0 



42 





.... 



11 



29 



19.0 



110 



17 



22 



U 



54 



50 



3 



42 





• . . • 



42 



is 



51.0 



11 



31 



12.0 



110 



10 



22 



u 



54 



46 



33 



42 



.. 



• - ■ . 



42 



13 



52.0 



11 



35 



41.5 



108 



45 



15 



L 



54 



35 



47 



42 



15 



10.0 



42 



•■ 



.... 



Mf^flTI 



42 



14 



56.3 



42 



14 



1.9 























Mean from both limbs 42° 14' 29 . 1 ± 3" . 69. 



It was necessary here to keep asunder the results from lower and 

 vipper limbs because of their unusually large difference, which probably 

 has originated by the unsteadiness of the artificial horizon, the wind 

 often disturbing the quicksilver. The index error of the sextant for the 

 preceding observations was = — 4' 17", and the sun's declination has 

 been assumed = -j- 7° 22' 56". 5, its semi-diameter = 15' 54", parallax 

 = -j- 5" . With the chronometer correction to sidereal time of — 17™ 39* 

 (as given before), apparent noon is found to have been at 11'^ 8™ Q'^.O 

 chron., or the greatest elevation of the sun, from which more conveni- 

 ently for computation the times are counted, happened at 11"^ 7™ 55^.2 

 chron. 



