CLIMATOLOGICAL PROBLEMS IN THE ARCTIC AND SUB-ARCTIC 
but in general goes too far in deducing mechanisms that 
do not exist. Only a refusal to examine evidence has 
made it possible for Hobbs to maintain his position 
unchanged for so many years. 
A mere rejection of Hobbs’s views does not remove 
the need for further investigation of the icecap climate. 
The cap is the only existing continental glacier where 
complete scientific exploration seems within the bounds 
of possibility with available means of transportation. 
As such, it offers us enormous rewards. Nowhere else 
on earth can the climatology of glaciation be so effec- 
tively studied. 
So far, the attention of climatologists has chiefly been 
upon establishing the character of the circulation over 
the cap. The work of assessing the distribution of fresh 
snowfall and its redistribution to the margins by the 
strongly divergent winds has hardly begun. It is im- 
perative that the ablation cycle of the cap be studied, 
not merely along the route to Hismitte, but ‘also round 
the little known northern and northeastern flanks. 
Though such work is normally reckoned the proper 
field of the glaciologist, the climatological significance 
of this problem is obvious. 
CONCLUSION 
The review of arctic climatological problems pre- 
sented here is by itself an inadequate document. Within 
this Compendium there are several other papers that 
also discuss problems of climate that affect high lati- 
tudes, and these should be read alongside the present 
account. The vast, intricate, and controversial subject 
of climatic change, for example, has been left in other 
hands. Nowhere on earth have secular changes in 
climate been more conspicuous than in the Arctic, es- 
pecially along its Atlantic flank, and the reader should 
seek out the facts of these changes in this volume and 
elsewhere. 
Tt seems likely that the next ten years will see a great 
lifting of the obscurity now extending across the Arctic. 
The author earnestly hopes that this chapter will be- 
come out-of-date more rapidly than any other in the 
Compendium. 
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