ASTRONOMICAL AND GEODETIC OBSERVATIONS. 



Inde 



Observations for time, August Ith (A. M. 8th). 



Double altitudes of the sun with reflecting circle. 



+ 32' 30" —30' 0' 

 + 32 40 —29 40 



■4 



!"}. 



correction +1' 22". 5 



Pocket clironometer. 





20 



Pocket chronometer. 





20 



gh 21-" 

 8 22 



05= 

 16 



5T°21'{^J" 

 5. 30 {^2 



8^ 

 8 



26" 43= 

 27 39 



59° 01' {2;" 



59 06 {^J 





2© 







20 



8 23 



35 



58 41 |- 



8 



28 36 





58 10 {;s 



8 25 



14 



58 51 I^J 



8 



29 15 





58 ,3 {f„ 



T= + 50 



°, B=29'".80at63° Index j + g' ^2" 



—30' 30"") 

 —30 20 j ' 



correction +1' 5" 



ince : r — - 



-1' 45".3 r, = — 1' 43".6 rt, 



= +'?".4and6= +16° 00 



' 53" for the middle 



2 



h 





t 



A? 



gh 21" 

 8 24 

 8 2T 

 8 28 



40».5 

 24.5 

 11 

 55.5 



28° bV 46" 

 29 06 25 

 29 15 11 

 29 20 41 



—40° 

 —39 

 —39 

 —38 



28' 40" 

 48 01 

 06 40 

 39 46 





+ P Ol-" 44' 

 42 

 41 

 44 







Mean, 



+ 1 01 42.1 



Double altitudes of the sun with reflecting circle. Aug. 8th. 



—30' 40"] ,. , .^,, . 

 OA 9A \ , correction +51 .5 



ret 



chronometer 



2" 



19" 



00^ 



2 



19 



49 



2 



20 



43 



2 



21 



33 





52' 



20" 



Lndex|_^32 



30 





20 





53° 



26' 



(40 

 j30 



53 



20 

 20 



(40 



|50 



54 



11 



(20 



1oo 



54 



10 



(40 

 |30 



Pocket chronometer. 

 2^ 22" 22' 

 2 23 09 



2 24 02 

 2 24 36 



20 

 54° 04' j 



53 58 I 



2© 

 52 49 I 

 52 44 -I 



T = +52°, B=29=-.80at 62° Index j+g^' g°" ~^q' ^^"1 , correction +1' 01". 5 



hence: r = —l' 54". 8 r^ = —l' 55". 8 rti= +1".6 and S = +15° 56' 38" for the middle. 



h t 



T 



2" 19" 24'. 5 

 2 21 08 

 2 22 45.5 

 2 24 19 



26C 56' 24" 

 26 49 54 

 26 43 51 

 26 38 02 



+ 48° 55' 03' 



+ 49 21 09 



+ 49 45 34 



+ 50 08 40 



+ P 01" 33' 

 34 

 34 

 33 



Mean, +1 01 33.5 



Recapittjlation of Correction of Pocket Chronometer on Proven Time. 



aT 



August 1th, 9 A. M. 



1th, 9 A. M. 



1th, 4 P. M. 



" 8th, 9 A. M. 



" 8th, 3 P. M. 





+ 1" 01" 34M 





38.5 





40.0 





42.1 





33.5 



Mean, 



+ 1 01 31.9 



