85 



MEASUREMENT OF AN ARC 

 « OPHTOCMI. 



! 180 9 



Left Arc. 



18 9 



Right Arc. 



M E AN. 



J MONTH. 



April 13 



Jl *j 



17 

 19 



211 

 24 



28 

 30 



1 Mean 



.. II 



4 S3 14.4 

 . '13.57 

 12.85 



. . . . 13.25 i 

 12.00 

 10.03 

 12.57 

 13.93 

 13^3 



MONTH. 



April 12 

 14 

 16 

 18 



ao 



23 

 25 

 26 

 29 



Moan 



4 32 61.86 

 62.8 

 60.96 

 62.73 

 59.5 

 59.61 

 61.35 

 61.71 

 61.78 



o , II 



4 33 7.14 



Zenith distance,, ...... -4 33 1 1.86 



. 



4 33 12.91 



4 33 1.37 





AQIUJLdE, 



April 13 



29 



May 1 



6 



Mean 



5 25 32.5 

 31.28 

 32.35 

 30.71 



5 25 31.71 



April 2S 



30 



May 3 



8 



Mean 



5 25 16.42 



16.87 

 14.55 

 16.37 



5 25 16.05 



Refraction, &c. &c. 

 Zenith distance, 



5 25 23.88 

 ... + 5.37 



5 25 29.25 





y AQTJTLJE. 



i. . 



April 2S| 1 59 23.65 

 May 4" ... . 22.06 

 7 20.35 



April 29 



May 3 



6 



Mean | 1 59 22.02 j Mean 



1 59 15.89 

 1 1.83 

 14.51 

 11.79 



1- 



1 59 13.50 



I 



1 59 17.76 

 Refraction, &c. &c + 2.01 



Zenith distance, ,1 59 19.77 



