- 9 - 
Diurnal 
Nocturnal 
« — *- 
- t ■— • 
l79‘ 
s7f 
177 * 
i71 * 
--L 
Figure 1. Southern Grid No. 9 cruise track, li|-19 August 1966. 
Scale; 2 inches s 60 miles at 0° latitude. 
