414 



HYDROGRAPHY. 



TABLE 11.— Continued. 



Greenwich Ints., 14 stars, 11 55 28-02 X 14 = 392-28, 5 W. sts., 9 East. 

 Cambridge Ints., 4 stars, 11 55 34-72 X 4 = 138-9, 2 W. sts., 2 East. 

 Washington Ints., 10 stars, 11 55 28-52 X 10 = 282-2, 3 W. sts., 7 East. 



Mean Longitude, 

 Longitude by Chronometer, 



816-38 4- 28 

 11 55 29-156 = 178 52 17-340. 

 11 55 30-71 = 178 52 40-78. 



LATITUDK. 











1840. 









May 17, 



a Centauri, 



17 40 20- 



10 



« 18, 



Y Draconis, 



40 57-8 



12 





a Lyrae, 



40 50-74 



14 



« 21, 



7j Ursae Majoris, 



41 21- 



18 





rj Bootes, 



40 40- 



6 





/? Centauri, 



41 10-3 



10 





a Bootes, 



40 19- 



10 





a Centauri, 



40 58-7 



20 





a Coro. Borealis, 



41 10- 



4 



" 29, 



rj Ursa? 31 aj oris, 



40 15-5 



4 





rj Bootes, 



40 25-4 



4 





j3 Centauri, 



40 24-6 



6 





A Bootes, 



40 25- 



10 





A Centauri, 



41 05 8 



s 



June 24, 



a Tri. Australis, 



40 44-4 



20 



1840. 

 June 24, 



May 18, 

 " 19, 

 Junel8, 



: Ophiuchi, 

 : Cygni, 



By Sun, 

 " Stars, 



17 40 45- 



20 



40 32-8 



20 



17 40 43-88 



190 



17 41 09 3 



20 



40 50 1 



30 



40 43 6 



18 



4U 40- 



16 



40 55-75 



14 



40 48-7 



10 



40 28-3 



25 



17 40 48 82 



134 



17 40 43-88 



19(3 



Mean Latitude by Sun and Stars, 17 40 46-35 330 



LON jITTJDE. 











CAMBRIDGE INTS. 





1840. 







h. m. s. 



h. m. S. 



h. m. s. 



Nov. 2, 



Y Capricorni, 







10 31 31-2 



10 31 20- 





d Capricorni, 





10 31 08-13 



31 24-8 



31 36- 



" 4, 



Aquarii, 





31 55-49 





31 32-9 





rrAquarii, 





31 34-19 





31 30-1 





x' 2 Pisciutn, 





31 28- 





31 28 9 



