IN THE ARCTIC SEAS. 



35 



Fmlrrnacs, July 1, 1853. Station on small island on the northern side of the liarbor. 

 Observations of double altitudes of the sun with the sextant, for latitude. 



Chronometer time. 



5'' 18°i 1.5" 



19 25 



20 34 



5 23 14 



24 II 



25 01 



Double altitude. 



91° 59' 10" 

 49 00 

 39 25 



?91 14 35 



04 40 

 89 50 30 



Chronometer time 



o 



5" 29"' 30-* 



30 31 



31 15 



5 35 47 

 36 29 

 31 07 



DouMe altitude 



89° 16' 05" 

 08 00 



01 05 



89 21 15 



15 05 



8 50 



Index error of sextant —8' 45". Temperature about 43° F. Aneroid barometer 30.05 inches. 



O's apparent altitude 



A 



Chronometer time . 

 Chronometer error 



Mean time of observation 

 Apparent time 

 Meridional arc 

 Meridional arc + latitude 



Latitude .... 



(This result is only approximate.) 



Reduction. 

 45° 32' 49" 

 45 31 56 



5h 21m 47^7 



— 3 21 45.6 



2 00 02.1 



1 56 32.1 



63° 57' 06" 



127 00 06 



03 03 00 



44° 40' 14" 

 44 39 20 

 51. 33,n 26«.5 

 — 3 21 45.6 Assumed. 



2 11 40.9 



2 08 10.8 



63° 15' 45" 



126 18 25 



63 02 40 Mean 63° 02' 50' 



Proven, July 19, 1853. Station near the house of the Governor. 

 Observations of the sun's altitude for time. 



Chronometer time. 



o 



Ih 54m 43s 



56 -10 



57 31 



1 59 33 



2 01 00 



2 43 



Double altitude. 



71° 28' 10' 

 35 45 

 42 00 



72 54 55 



73 01 40 

 09 10 



Chronometer time. 



G 



O 



2h- 5.11 26» 



6 41 



7 37 



2 9 5G 



11 19 



12 32 



Double altitude 



73° 21' 50" 



28 05 

 32 05 



72 38 50 

 45 20 

 51 00 



Index error of sextant —3' 0". Approximate temp. 40° F. Approximate bar. 29.5 inches. 

 Approximate longitude 55° 25' W. of Greenwich. 





O's apparent altitude 



Latitude (approx.) . 



Hour angle 

 Equation of time 

 Mean time of ol)servation 

 Chronometer time 



Chronometer error . 

 The longitude is probal 



Reduction. 

 36° 10' 48".; 

 30 09 34.9 

 69 10 20 

 72 23 00 



36° 34' 35". 8 



36 33 22.5 



69 10 23 



72 23 00 



24''—!'' 49>" 33^9 241^—11' 39"" 17^0 



5 5C.7 5 56.8 



22 16 22.8 22 26 39.8 



25 58 36.6 26 08 55.2 



. —3 42 13.8 —3 42 15.4 Mean —3" 42" 14«. 6 



y greater than the above value, assumed 3'' 42"^ 30° or 55° 37'.5. 



? Probably 90= 12' 35". 



