100 Proceedings of the Asiatic Society. [March, 



that the Survey Department was called on by the Government of India 

 to determine the true position. 



Seconds of Diurnal Results oy 



Zenith Distances. 







Number of 





Date. 





pairs of 

 obsesvatiens. 



Kesult. 



6th February, 1863, 





3 



52-06 



7th ditto, ... ... ... . 



, , 



5 



5324 



9th ditto, ... 





7 



57-24 



26th ditto, ... ... ... . 





15 



49-31 



27th ditto, ... 





18 



47-09 



28th ditto, ... ... ... . 





19 



5131 



25th March, 1863, 





5 



52-10 



26th ditto, 





10 



55-54 



27th ditto, ... 





7 



51-98 



3rd April, 1863, ... ... ... . 





7 



50-13 



4th ditto, ... 





5 



46-68 



s 

 When the Moon was north of the prime vertical, 74 pairs of 



observations were taken, result = 52'57 



When the Moon was south of the prime vertical, 27 pairs of 



observations were taken, result = 52-12 



When the Moon was east of the meridian, 52 pairs of obser- 

 vations were taken, result = 51*50 



When the Moon was west of the meridian, 49 pairs of obser- 

 vations were taken, result = 50*44 



Library. 



The following additions were made to the Library since the meeting 

 held in February last. 



* # * The names of Donors in capitals. 

 Presentations. 



Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften 

 iPhilos-Historische classe ; Band LV. Hefte I. — III. Math-Naturwis- 

 senschaftliche classe ; Band LV. Hefte I. — II. : — K. K. Akademie der 



Wissenschaften, Wien. 



