44 A S 'r II O N M I C A L OBSERVATIONS 



Litlh-lon T>^!aml, June 12, 1855. 



Tlie latitude (if Littleton Islautl is determined by a set of circum-meridian altitudes of the sun, made 

 on the cast end of the island ; the individual observations give (when corrected for refraction) — 



Cajic Alexander, June 17, 1855. 



This position is obtained by an oliservation at a point on the ice five miles distant and N. 7° 26' E. 

 (true) from the cape. 



The map appended to this paper is based upon the preceding astronomical 

 results ; the astronomically determined positions (either in latitude or longitude) 

 arc indicated by a star; for its longitudes, it depends on the well determined meri- 

 dian of the winter quarters; the detail of shoreline and the principal names are 

 from Dr. Kane's map, in vol. I. of the Narrative. The projection depends on the 

 following data, derived from Bessel's elements of the figure of the earth. 



1° of the meridian in middle latitude 

 1° of longitude in parallel . 



. 80i° • 111649"'.l 



. 78" 23216.2 



. 79 21306.9 



. 80 19391.0 



. 81 17409.2 



. 82 15541.8 



. 83 13609.7 



Examining the original map in the Narrative, I found that the longitude of the 

 Observatory in Van Kcnsselaer harbor actually adopted was not that given in the 

 text, but a value so nearly agreeing with my final result, that no change in the longi- 

 tude of that part of the coast was required in the transfer of the shoreline to the 

 new map. 13y request, Mr. Sonntag marked the exact position of the observatory 



