TIDES AND CURRENTS 



direction south of west. The north edge of the ice band 

 was as clean as if it had stopped against a soUd, while 

 the spindrift flying northward showed that there was no 

 change in the wind. The line followed by this band of 

 ice fragments became approximately the hmit of the fast 

 ice later on. 



After the permanent ice formed in the Sound, its 

 edge extending in a line south-west from Black Sand 



Wind-driven Ice Stopped by Current from North, March 16 



Beach, every gale cleared the ice out from the sea north 

 of this line. When calm weather returned, pack ice and 

 bergs floated down the east side of the Sound, till they 

 struck the fast ice, when they began to roll along its edge 

 away south-westward. 



The drift of the Nimrod from January 7 to 16, 1909, 

 when held in the pack, extended our knowledge of this 

 current, and proved a vast eddy from Cape Bird round 



399 



