I9I5- ^O- 5- ROALD AML'XDSEX's ANTARCTIC EXPEDITION: METEOROLOGY 



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The most frequent Qouds are Stratus, Cirro-Stratus and Cirrtis. Cu- 

 mulus is rarely seen. 



IX. Halos 

 round the Sun were obser\-ed on the Plateau 



on Nov. 28^*^ Cirro-Stratus. Low snow drift. 



Dec. 



Snow drift 



A little snow 



-A little snow 



9 times 7 Da^s. 



X. Pressure and Air-Currents. 

 The Table p. 71 shows the mean distribution of the pressure of the 

 air along Capt. Amundsen's route referred to the middle of December, 191 1. 

 Taking out the prevailing winds corresponding with the pressure at dif- 

 ferent latitudes, we get the following Table. 



