ARCTOWSKI, CHANGES IN DISTRIBUTION OF TEMI'ERATURE 107 



The following questions may be taken into consideration: 



1). Is there any trace of the Arequipa variation on the consecutive 

 curves of Arctic stations? 



2). How far do the pleionian variations of the Xorth American conti- 

 nent extend over oceanic areas ? 



3). Is there a system of Atlantic variations independent of those of 

 Europe and North America? 



4). What are the connections between the continental variations and 

 those observed in the Arctic regions ? 



5). Do the Arctic ice conditions influence the variations of annual 

 temperatures observed on continental areas? 



Fig. 58. — Temperature variations in Newfoundland and Maine 



The curves on Fig. 57 give an answer to the first of these questions. 

 Two types are distinguishable : the west Greenland type, best represented 

 by the curve of Jacobshavn, and the Icelandic, or let us say Grrimsey type. 

 Angmagsalik, on the east coast of Greenland, belongs to the Icelandic 

 type and the curve of Ivigtut is transitional, since it is similar to the 

 curve of Jacobshavn until 1905 and very much more like the curve of 

 Angmagsalik after 1905 or 1906. 



If we compare the curves of Jacobshavn and Grimsey with the Are- 

 quipa curve we must admit some similarities which are too well pro- 

 nounced to be ascribed to a simple chance circumstance. With the ex- 

 ception of the part comprising the consecutive means of Febiniary, 1903,- 



