of mm Ecr^PTic, 



ws 



TABLE I 



Containing the Observed Altitudes of the Sun, when near the Zenith of the 

 Madras Observatory; in the years- 1809 and 1810. 



Twelve observation!- of the Sun., m Aptil and May, 1809. 



Day of 



the 

 Month. 





Obs'd Altitude. * 



1 



C- 









u 





s 





0's 



<u 



. .s 



o 



.2 



« 



Semidia.. 



6 

 o 



u 



e 



3 





"c3 



meter. 



at 



. XS 



O) 



03 





CO 



~-i 



t£ 



Ph 



* 



©'» 



Declination. 



Latitude. 



April 14 

 19 



May 



1 



5 

 14 



10 



5. 85 40 23.07 

 87 26 39^52 



N. 88 6 33.40 

 87 27 24.27 

 84 32 17.13 

 84 3 39.935 



INCHES. 





29.870 



87.7 



^9.84-i 



88.8 



29.758 



92.0 



29.760 



88.0 



29.854 



94.0 



29.836 



36.0 



3.309 



1.860 



.; + 

 0.60 



0.342 



. + .. 

 15 57.7 



L5 56.3 



1.743 0.315115 53.5 



2.291 

 4.628 



0.419U5 52.44 

 0.842 15 48.9 



5.107 1.880|15 50.2 



_(- _ ■ 

 9 16' 45~500 

 11 2 57;810 



14 57 56:450 

 16 8 50.957 



18 32 23.786 



19 1 0.040 



13 20 27.439 

 13 20 23.508 



13 20 21.722 

 13 20 20.915 

 13 20 26.030 

 13 20 26.038 



N. B. These observations and the following were taken > 

 without reference to an Horizontal Mark. V 



13 20 24.275 

 1-2 47' 48.409 



Mean, 13 4 6.342 



_( ! 



April 20 

 25 



May 



W. 



w. 



AV. 



w. 

 \v. 



3. 88 20 1.97 



89 59 21.68 



N. 87 15 53.35 

 86 58 2.70 

 86 40 27.64 



86 6 3.77 



29 824 

 20.894 



88.0 

 88.0 



29.820,92.0 

 29.852 87.0 

 29.797 85.0 



29.746i92.0 



1.579 0.292 



I 

 0.2290.000 



1.990!0.365 



2.259 

 2.506 



2.953 



0,405 

 0.448 



0.539 



15 56.05 



15 54. 8C 



15 53.90 



15 52.87 



15 52.65 



+ 



15 52.22 



11 2341. 160 12- 47 44.427 



13 4 19.828 



B5 16 3.648 



1.5 33 54.850 



15 51 31.348 



16 25 56.557 



12 47 49.479 



12 47 48. 27 J 

 12 47-48.56G 

 12 47 49.580 



12 50 48.133 



jftrror of collimation, 18 42.0C7. 



Affected of the error of centring. 



Mean, 12 47 4S.409 



