24 



POLAR PROBLEMS 



1901 to April 12, 1902.^^ These give a range of half a foot and a cotidal 

 hour of 3.7 which agrees very well with Sverdrup's cotidal map. 



Conclusion 



Our conceptions in regard to the Arctic tides have thus undergone 

 rather profound modifications, and it is of interest to note that the 

 results brought out by the most recent study of these tides are of 

 wide application. In general, it may be said that the observations 

 on the shores of the Arctic are so few in number that wherever such 

 observations can be made they are bound to add both to a better 

 knowledge of the local characteristics of the time and range of tide 

 and to a better conception of the movement of the tide in the Arctic 

 as a whole. Regions where tide observations are especially desirable 

 are the open coasts of the islands lying northward of Siberia — Wrangel 

 Island and the New Siberian Islands for example — and the north- 

 western coasts of the islands northeastward from Beaufort Sea to 

 Grant Land. 



'■^ idem, II: Prilivj' u ostrovov Anzhu ili Novo-Sibirskikh, v lagunye Nerpalakh na zapadnom 

 beregu o-va Kotelnago (The tides at the Anjou or New Siberian Islands in the Nerpalakh lagoon on 

 the western shore of Kotelnyi Island), ibid.. Section B, Livraison 5, Zapiski Imp. Akad. Nauk, Ser. 

 8, Phys.-Math. Class, Vol. 26, No. 5> St. Petersburg, 1915. 



