About 200 feet west of the tower, the saucer de- 

 scended to the bottom and proceeded westward at 

 0.4 knot. Studies were made of visibility, current, 

 sediments, bottom roughness, calcareous materials, 

 organic matter, benthic organisms, and fish. Nearly 

 two hundred 35-mm colored still pictures and 200 feet 

 of 16-mm movie film were taken. It was found that 

 the sea floor was divided in zones of differing 

 characteristics, and that the area west of the tower 

 affords an excellent environment for the study of a 

 variety of sea floor and acoustic problems. 



100 



3000- 



VISI- 

 BILITY 



(FT) 



15 



CURRENT 

 TO 



SOUTH 

 (KTS) 



0,1 



0,1 



0,2 



0,2 



SEDIMENT 



COARSE 

 SAND 



FINE 



'sand" 



DISTANCE (FT) 



