26 



The normal number of icebergs coming south of the forty-eighth 

 parallel each year is, according to the above table, 419, which is the 

 mean for the last 32 years. 



The normal number of icebergs south of the forty-eighth parallel 

 for each month (menace to the Cape Race tracks vessels) is: 



January 3 July 26 



February - 12 August 11 



March 43 September 8 



April 91 October 3 



May 139 November 3 



June 77 December 2 



The normal number of icebergs south of the Grand Banks forty- 

 eighth parallel) for each month (menace to the United States- 

 Europe tracks vessels) is: 



January 



February 1 



March 4 



April 9 



May 16 



June 13 



July 3 



August 2 



September 1 



October 



November 



December . 



