Table B-l. --List of chart units occupied by a research vessel, 

 showing hours in unit, seals seen per hour, and 

 number of seals seen and collected.!' off 

 Washington, 6-28 February 1 969- -Continued 



1/ The base chart is USCGS No. 5052. The sides of each 

 unit are 10 minutes of latitude by 10 minutes of longitude. The 

 units are located by a system of vertical column and horizontal 

 row numbers. Vertical column numbering begins at the lower 

 right corner of chart (fig. 11) and horizontal row numbering begins 

 at the lower left corner. 



74 



