280 IMPORTANCE OF DISKO IN CASE OF SUCCESS. 



not be ascribed as my motive. Having seen much of the 

 arctic seas, all the varieties of ice formation, as well as 

 under what peculiar causes its destruction is every year 

 effected, and having pointed out to observation the desti- 

 nation of such portions as are not usually dissolved in the 

 early parts of the season, it may be allowable to indulge 

 a little effort of imagination in tracing out a line across 

 the arctic ocean, in which the famed passage is most Hkely 

 to be effected. 



