164 RECORD AND RESULTS. 



Baffin Bay. Distance from Whalefish Islands to Port Foulke 770 statute miles 

 nearly ; difference in cotidal hour 4''.35 ; hence velocity in statute miles per hour 

 177, and corresponding depth 2095 feet, or 349 fathoms. 



Smith Strait. Distance from Port Foulke to Van Rensselaer Harbor 55 statute 

 miles; difference in cotidal hour 0''.35; hence velocity in statute miles per hour 

 157, and corresponding depth 1663 feet, or 277 fathoms. 



The average depth, according to the above, of Davis Strait and Baffin Bay is, 

 therefore, about 383 fathoms, the length of the free tide wave nearly 2300 statute 

 miles, with a height between trough and crest of about 7| feet. 



The average depth, as found from the velocity of the tide wave, appears to accord 

 well with the few soundings we possess, and the result I consider entitled to 

 confidence. 



