Introduction, 



JLhe astronomical observations and determinations of geographical 

 position contained in the following pages, were made by Baumakn, Fos- 

 HEiM, IsACHSEN, ScHEi and SvERDRUP ; while A. Alexander, Joh. Dahl 

 and Graarud have assisted in the working-out of the observations. 



As the work had to be hastened on, on account of Sverdrup's 

 book "Nyt Land" ("New Land"), so that the charting had to be parti- 

 ally based upon the preliminary drawings, certain discrepancies have 

 arisen between the final calculations and the first maps. 



Where there have been several determinations of the same point, 

 careful discrimination has been exercised ; and a number of observations, 

 made under unfortunate circumstances, have been omitted, when obser- 

 vations of the same points have been made later in the course of the 

 expedition under more favorable conditions. 



The geogi-aphical results of the expedition are arranged as follows : 

 I. Description of the Instruments. 

 IL Account of the Surveying. 



in. Geographical Position of the Winter Harbours; and Error of 

 Chronometer Kutter (Kt.) on Greenwich Mean Time. 



IV. Observations on Sledge-Journeys. 

 V. Triangulation of Gaase Fjord. 



In conclusion I would tender my thanks to the above-named assi- 

 stants, as also to Prof. H. Geelmuyden, Christiania, for his ready help 

 before starting on the Expedition. 



Special thanks are also due to Prof. H. Mohn, Director of the 

 Meteorological Institute, Christiania, for his kind advice and revision of 

 the material. 



Christiania; 5th April, 1906. 



Gunn. Isachsen. 



