Upon conp^eting a tow, the sampler is brought inboard, the 

 towing cable and depressor line are unshackled, and it is placed 

 upright in a racko Dial readings are taken immediately. The 

 nosepiece is then detached, and the net removed. The net is 

 thoroughly hosed down with salt water before detaching the plankton 

 bucket. Any necessary cleaning is done with a nylon-bristle brush. 



v^^ 



Figure h. Model Gulf I-A high speed plankton sampler rigged 

 in position for lowering. 



