232 



ASTRONOMY 



TABLE XII. 



Tahvlation of results for the, latitude of astronomical station opposite Presidio del Norte, deriveo 

 Jrom observations made with zenith telescope No. 4, on twenty -six pairs of stains: By Major W. 3, 

 Emory ^ Chief Astronomer and Surveyor of the United States and Mexican boundary survey. 



i 



1st pair. 



2d pair. 



3d pair. 



4th pair. 



1 



5th pair. 



1 



6th pair. \ 



iW pair. 



Date. 



B. A. C. 



4993 a. 

 50T2N. 



1 



JD. A.* C* 



5048 S. 

 5084 N. 



- _ 



B. A. C. 



5132 a. i 



5122 N. 



1 

 1 

 1 



1 



B. A. e. 



51^ S, 



5130 N. 



B. A. C. 



5146 S. 

 5168 IV. 



B. A. C, 



5273 S. 

 5295 N. 



B. A. C, 



5426 S. 



5460 N. 



1852, Julv 15 



29 34 07.15 

 29 34 08.49 



o / ;/ 



y // 

 29 34 07.16 



29 34 OR. 89 



» / // 



29 34 08.32 

 29 34 07.42 

 29 34 06.71 



O f ft 



29 34 03 90 



16 





29 34 08.30 29 .'?4 OH 77 





29 34 04 46 



18 



29 34 11.00 



1 





29 34 09.50 



29 34 04.77 



21 





1 



i 





29 34 05.26 



22 



- 











29 34 07,53 



T^^ ^/r ^"* -^ ^^ ^^ ■ '^^ ^mT 



Auflr. 10 















12 







■ 









18...,. 











1 



















1 





Latitude by a mean of each pair. 

 Corrections for declinations .... 



29 34 07.82 

 — 0.96 



i 



29 34 11.00 

 — 2.74 



29 34 07.73 



0.00 



29 34 07.83 



0.00 



29 34 09.50 

 — 1.10 



29 34 07.49 

 — 0.60 



29 34 04.60 



0.00 





1 



29 34 06.86 ' 



29 34 08.26 



1 



29 34 07.73 



29 34 07.83 



29 34 08.40 



29 34 06.89 



29 34 04.60 





n#'^r ^rW ^ ^^ \^ % Ita^ ^# 



^^^ ^^ ^^^ -^ ^m ^^r V f^V ^^ 



AlFV^ *^ 4 ** * # ^^^^ 



TABLE Xn— Continued. 



Date. 



1852, July 15 



16 



is! 



21 



22 



Aug. 10 



12 



18 



8lh pair. 



B. A, C. 



5527 S. 

 5546 N, 



9th pair. 



B. A. C. 



5677 S. 

 5619 N. 



// 



Latitude by a mean of each pair. 

 Corrections for declinations. . , . 



Corrected latitude 



29 34 05.54 

 29 34 06.34 

 29 34 04.93 

 39 34 06.42 



29 34 05.81 



0.00 



29 34 05.81 



II 



29 34 04,11 

 29 34 03.93 

 29 34 04.19 

 29 34 03.82 

 29 34 02.55 

 29 34 02.71 

 29 34 09.50 



29 34 03.40 



0.00 



29 34 03.40 



. 



10th pair. 



B, A. C. 



5883 S. 

 5788 N. 



• / // 

 29 34 06.86 



29 34 06.50 



29 34 06.42 

 29 34 07.31 



29 34 06.85 

 29 34 06.42 



29 34 06.73 

 + 0.23 



99 34 06.96 





11th pair. 



B. A. O. 



5900 S. 

 5929 N. 



w 



39 34 04.90 

 29 34 03.97 

 29 34 04.71 

 29 34 05.49 

 29 34 03.09 

 29 34 04.27 

 29 34 03.70 



29 34 04.30 

 + 1.69 



29 34 05.99 



12th pair 



B. A. C. 



60-21 S. 



5986 N. 



» / // 

 29 34 08.74 



29 34 09.05 

 29 34 09.58 

 29 34 08.49 

 29 34 08.69 

 29 34 08.76 

 29 34 08.00 



29 34 08.76 



0.00 



29 34 08,76 



13th pair 



B. A* C/. 



6150 S. 

 6087 N. 



// 



29 34 08.21 

 29 34 08.17 

 29 34 07,50 

 29 34 07,74 

 99 34 07.87 

 29 34 07.62 

 29 34 06.93 



29 34 07.72 

 + 0.10 



29 34 07.89 



14tli pair, 



B. A. C. 



6241 S. 



6235 N, 



// 



29 34 07.82 

 29 34 07.24 

 29 34 07,88 

 29 34 07.49 

 29 34 05.69 

 29 34 06.20 

 29 34 07.53 



29 34 07.13 

 — 1.08 



29 34 06.04 



