Deep temperatures in Northumberland Strait. 

 17, 1908. 



-September 30 to October 



Note. — This affords a good series at Station U for the determination of 

 any difference in the temperature of the water in the Flood and Ebb directions. 

 The best comparison is up to October 10; as after that, only one of the slacks 

 of the day is obtained, and the water is growing colder with the progress of the 

 season. The difference is less than |° at any depth. The observations in June 

 give a more marked result; the average difference for all depths being nearly 

 1° between the two directions. 



At Station V in the Western narrows, where the Strait connects with the 

 open Gulf of St. Lawrence, the result is more pronounced; as the average 

 difference for all depths is almost 1° between the two directions. 



The difference at Station T at the eastern end of the Strait, is distinctly 

 less, as already indicated under the table of the September observations. 



80 



