6$ 



MEASUREMENT OF AN ARC 

 f AQUIJLJE. -. 



Nearest point on the Limb, % 35 JVorth: 



1806 

 Month. 



<u 

 u 



C3 



| 



Observed 

 Zenith distance. 



Corrections. 



Correct 

 Zenith distance. 



Thermometers. 



Upper 



Lower. 





| 



1 ° , a 



* + 



O- , ft 



O I O . - 



April 12 



W. ■ 



2 35 11.75 



3.81 



2 35 15.56 



76 75 

 78 79 



13 



E. 



2 '35 7. 



3.72 



2 35 10.72 



; to 



|! .-"W. 



2 35 15.25 



3.62 



2 35 18.87 



79 f 80 



1-5 



E. 



2-35 6.5 



3.54 



2 ; 35 10.04 



76 



75 j 



' 16 



W. 



2 35 12.6 



3.44 



2 35 16.04 



78 ' 



78 J 



17 



■ E. 



2 35 8.5 



• 3.33 



2 35 11.83 



77 ' 



77 



IS 



W. 



2 35 15. 



' '3.23 



2- 35 18.23 



80 ; 



79 



• 20 



E. 



2 35 7.5 



2.99 



2^ 35 10.49 



79 



79 ; 



S 21 



W. 



2 35 17; 5 



i 2.87 



2 35 20.37 



80 



80 | 



9{f 



E. j 



2 35 7. 



2.50 



2 35 9.5 1 



80 . 



80 



25 ' 



W. 



2 35 15.75 

 2 35 6.88 



2.37 

 2.23 



2 35 18.12 

 2 35 9.11 



81 



82 



81 

 82 



26 



E. 



28 



W. 



2 35 15. 



1.85 



2 35 16.85 



81 



82 



so 1 



E. 



2 35 7.25 



1.65 



8 35 8.9 



80 



80 



1 May 1 



W. ! 



2 35 17.38 



1.49 



2 35 18.87 



80 



80 



1 * 



E. 1 



2 35 7. 



1.34 



2 35 8.34 

 Mean 



80 



80 



79.06 



79.2 [ 



: 08 > 



r ; AQTDIJL3E. 



Nearest point on the Limb, 50 South. 



April 



20 



W. 



50 42.37 







21 



. w. 



• 50 43.5 







22 



E. 



50 48.5 







23 



E. 



50 50.13 







24 



E. 



50 50. 







26 



W. 



50 42.5 







27 



E. 



50 50.25 







28 



w: 



50 42.38 







29 



E. 



i 50 47.25 





1 



30 



w. 



50 41. 





May 



1 



w. 



50 41.13 







2 



E. 



50 48.63 





; + 



o , n 







3.58 



50 45.95 



80 



80 



3.69 



50 47.19 



80 



80 



3.79 



50 52.29 



81 



80 



3.91 



50 54.04 



81 



81 | 



4.04 



50 54.04 



80 



80 



4.30 



50 46% 80 



82 



81 



4.43= 



50 54.68 



80 



80 



4.56 



50 46.94 



81 



81 



4.69 



50 51. 9r 



80 



80 



4.84 



50 45.84 



80 



80 



4.98 



50 46.11 



81 



81 ' 



5.12 



50 53.75 



Mean 



80 



79 





80.5 



80.25 



< 



