VI - 



Wind-Velocity 227 



Anemometer 227 



Wind-Velocity. Daily Period 227 



Calms. Daily Period , 230 



Wind-Velocity. Annual Period 233 



Wind- Velocity and Frequency of Calms at the different Winter Quarters 234 



GalesandStorms 23.5 



Cloud. Precipitation 237 



Observations 238 



Amount of Cloud. Daily Period .328 



-»— AnnualPeriod v . . . • ■ ■ 331 



Cloud-Motion 334 



Probability of Pr ecipitati on. Daily Period . 336 



— »— AnnualPeriod 339 



NumberofDayswith Precipitation 340 



Duration of Precipitation in one Day with Precipitation. . . 342 



The Amount of Precipitation 34.5 



ObservationsofAuroraBorealis 350 



OplicalPhenomena 351 



Part II • 354 



Observations on board the Fram under Way 354 



Instruments used and their Corrections 354 



Sea-Observations 3.57 



Errata 397 



