194 



HOBBS— ROLE OF GLACIAL ANTICYCLONE [April 24, 



how exactly the air temperature follows that of the snow (p. 94). 

 The diary of the journey (pp. 85-104) shows that for the first 

 three weeks on the inland-ice the wind blew almost uninterruptedly 

 down slope from in front, became more variable and shifting on the 

 plain with slope a few seconds of arc, and reversed direction and 

 blew from the northwest soon after passing the divide, where slopes 

 became 8' of arc to the eastward. 



Koch and Wegener in their transection of the Greenland conti- 

 nent at its widest section (between latitudes 72° and 73°) en- 

 countered essentially the same conditions, the outward blowing cur- 

 rents constituting a veritable succession of storms whose vigor in- 

 creased toward both margins of the section.^ 



Fig. 3. Frequency wind-rose at Danmarks-Haven in northeast Green- 

 land and (at tlie left) a sketch map showing location of the station with 

 reference to inland-ice (after Wegener). 



From northeast Greenland there was available at the time of my 

 earlier discussions of the glacial anticyclones, only a preliminary 



^ J. P. Koch, " Unsere Durchquerung Gronlands 1912-1913," Zeitsch. d. 

 Gesellsch. f. Erdk. z. Berlin, 1914; Alfred Wegener, " Vorlaufiger Bericht 

 iiber die wissenschaftlichen Ergebnisse der Expedition," ibid. 



