Part II. 

 Observations on the Sledge Journey. 



Page 



Materials 40 



I. The Route. Courses and Distances. Latitudes and Longitudes. 



1. Courses 40 



2. Distances 40 



Tables of variation of Compass, Courses and Distances 42 



Route towards the Pole 44 



Position of Polheim 45 



Route from the Pole 48 



II. Meteorological observations. 



1. Temperature of the Air 49 



2. Pressure of the Air 50 



Aneroid 50 



Hypsometers 50 



Corrections of the aneroid 51 



3. Wind 52 



4. Cloudiness, Form of Clouds, Precipitation, Halos 52 



III. The Height of the Stations. 



Isobars 52 



Barometrical Levelling 54 



Accuracy 56 



Mean error of heights 57 



Vertical Section of the road 58 



IV. Tables of Observations 60 



V. The Temperature of the Air. 



1. The vertical distribution 69 



2. The horizontal distribution 69 



3. The interdiurnal variability 70 



4. Maxima and Minima observed -j i 



VI. The Pressure of the Air. 



Pressure at Sea-Level 7 r 



VII. The Winds. 



Frequency - 72 



Dynamic Wind-Roses 72 



Thermal Wind-Roses 



73 



Nephic Wind-Roses 73 



Precipitation-Wind-Roses 73 



Frequency of strong Winds 74 



Precipitation wiih strong Winds 74 



VIII. Cloudiness. 



Frequenci' 74 



Form of Clouds 75 



IX. Halos 75 



X. Pressure aud Air-Currents 75 



Appendix I . . . 77 



Appendix II 78 



