CONTENTS. 



Introductory Letter . . .... 



Introduction to astronomical observations 



Observations and results for latitude of Van Rensselaer Harbor, and the winter 



expedition ........... 2 



Observations and results for longitude of Van Rensselaer Harbor . . . .10 



a. From moon culminations and moon culminating stars . . . . .10 



h. From occultatious of Saturn's ring and Mars . . . . . 26, 29 



e. From a solar eclipse ......... 30 



Observations for latitude of a number of stations on the west and northwest coast of Greenland . 42 

 Observations for position of various stations on both sides of the channel north of Sniitli's Straits 43 

 Note on twilight .......... 45 



Appendix — with a map showing the astronomical positions . , . . .47 



■quarters of the 



1 



