Unclassified 



Secunty Classificati. 



Hydrogen sulfied 



Sediments 



Ocean bottom 



Fouling 



Biodeterioration 



Marine borers 



Aquatic animals 



Plastics 



Rope 



Wood 



DD , f h°o r v m .,1473 < BACK > 



(PAGE 2) 



Unclassified 



Security Classificati. 



