In shallow areas, 30-gallon water samples for gamma-radiation 

 analysis were collected while the sliip was underT;ay. These samples 

 were drawn through the ship's fire main system, after first flushing 

 the fire main for 30 minutes . In the deeper trench areas , the gamma- 

 radiation samples were taken while the ship was lying-to using a Bodman 

 bottle (Photo 5) at 100-meter depth intervals. To indicate possible 



PHOTOS. Bodman Bottle 



n 



