[EASUREMENT OF AN ARC 



i! Menus* 



180 6 



Left Arc. 



MONTH. o 



April 9 13 

 II 

 14 

 17} 

 211 



25 



Mean 



/I 



22 



91 1 



21 



98 



21 



31 



23 



02 



23 



76 



24 



34 1 



22 



93 



13 22. 



18 6 



April 10 

 18 

 19 

 20 

 22 

 24 

 26 



■ 



Light Arc. 



O 13 13.31 

 13.01 



12.42 



E A N. 



Refraction, &e. &c. 



12.17 

 13.01 



12.23 



Mean! 13 12.75 



13 17.82 

 . .. + 0.34 



Zenith distance, ...... . 13 18.16 



RECTJJLUf 



12 



I 



55 



14.53 



14 







S3.88 



18 







16.73 1 



20 







16.37 



22 







17.27 



24 







14.79 



earn 



I 



55 



15.59 1 



April 1 1 

 IS 

 17 



19 

 21 

 23 



Mean 



1 



55 



7.83 

 4.28 

 8.03 

 5.98 

 7.69 

 5.84 



1 



55 



6.61 I 



Refraction, &c, &c. 



Zenith distance, .... 



I 55 11. 1 



,...+ 1.8! 



1 55 12.1 



■ ■' ! 



April II 5 29 46.27 



< :-.: 43.72 



.-44.64 



47.10 



45.44 



■41.51 



Refraction, &c. &c. 

 Zenith distance. 



5 29 48.77 

 . ..+ 5.49 



,5 29 54.26 



!..- ' 



u 



