CONTENTS. 



Page 



Introduction < 



Instruments j 



Description of tlie Voyage 2 



Part I 3 



Observations at the Winter Quarters g 



The Winters Quarters, Place, Latitude, Longitude and Stay .... 3 



Atmospheric Pressure 4 



Barometer used and its Corrections 4 



Observations 6 



The daily Period 51 



The annual Period 57 



Absolute Minima 57 



Absolute Maxima 58 



The Temperature of the Air 59 



Thermometers used and their Corrections 59 



Observations 63 



The daily Period 108 



Daily Period and Amount of Cloud Ill 



Mean monthly Minima 114 



Mean monthly Maxima 1 14 



Aperiodic Range 115 



The annual Period 116 



Absolute Minima 117 



Absolute Maxima 118 



The interdiurnal Variability of the Temperature of the Air 120 



Thermal Wind-Roses 121 



Moisture of the Atmosphere 122 



Hair-Hygrometers used 122 



Observations 123 



Force of Vapour. Daily Period ' 168 



— »— Annual Period 171 



Relative Humidity. Daily Period 172 



— »— Annual Period 175 



Wind 176 



Observations 177 



Wind. Direction 222 



Frequency 222 



The Windward Side of the Wind-Rose 224 



