ASTRONOMICAL AND GEODETIC OBSERVATIONS. 



27 



Observations for longitude, August 4 (5th A. M.). 

 Double altitudes of the sun. S. J. McCormick, observer. 



T = + 380 } , , 

 B29'».9 at 5003 '^°°"'' 

 Index correction 0' 0" 



Pocket chronometer. 



20 49 



21 07 



2© 



530 33' 80" 

 84 40 

 86 10 



Mean, 2 20 44 

 Reductionno2007,— 1 50 



53 34 47 



2 18 54 



Refr'n— par. —1' 50" 

 Semidiameter + 15' 49" 



h= 27° or 22" 

 t =—36 42 40 



S =16° 54' 21" 

 E= + 5" 4P 



Mean time of observation, 21'' SS"* 50^ 

 Chronometer time, 26 18 54 



ATNetlik, 



A T Port Foulke, 



—4 40 04 



—4 46 36 (see preceding table of a T and STot 2007 ) 



Netlik east of Port Foulke, 6 32 



Longitude of Netlik, 4 45 28 west of Greenwich. 



Upernavik, North Greenland. 

 Observation for latitude, August 16, 18G1. 

 Meridian altitude of the sun. S. J. McCormick, observer. 

 20 61° 13' 50" 



Index correction, 00 T = + 51° 



Altitude observed, 

 Refr. — par., 

 Semidiameter, 



h 

 S at apparent noon. 



30 36 



55 



— 1 



80 



+ 15 



51 



30 51 



16 



13 38 



03 



B = 29'".9 at 51° 

 Assumed longitude S* 44™ 



72 46 47 



Dr. Kane, in 1853, found this latitude 72° 46' 12" (Sonntag observer; see p. 37 

 of Kane's Astronomical Observations) ; according to Captain Inglefield the latitude 

 is 72° 46' 51" ; the mean of the three determinations is 72° 46' 37", 



Observations for time at Upernavik, August 15, 1861. 

 Double altitude of the sun. S. J. McCormick, observer. 



Chronometer 2007 





2© 









6" 35" 



24^ 



52° 



00' 



30" 



T = + 50° 





35 



59 



51 



57 



20 



B = 29"'.9 at 540 





36 



24 



51 



54 



40 



Index correction, 0' 



00" 



36 



53 



51 



50 



50 



Refr'n — par., — 1 



40 



37 



20 



51 



48 



20 



Semidiameter, + ] 5 



50 



37 



43 



51 



45 



80 







38 



07.5 



. 51 



42 



10 



7i=26O09' 01" 



S = + 130 54' 52" 



38 



30.5 



51 



40 



50 



< =42 45 10 



^ = + 4° 10= 



Mean, 6 37 



02.8 



51 



50 



01 





* Chronometer comparison : 2007, 7'' 42"°, Pocket chronometer, 7'> 43™ 50' 



