PREFACE 



The Navy is devoting mucli time and effort 

 to the improvement of its formulas for ship- 

 bottom paints. Because many different factors 

 control the amount of fouling and corrosion, 

 nev formulas should not be adopted for widespread 

 service use until they are tested under service 

 conditions. Since further improvement is guided 

 by information vhich can be obtained only at the 

 time of docking, it is essential that the docking 

 reports be as complete and accurate as possible. 

 The data they contain will be summarized for 

 statistical analysis. 



This booklet was prepared to assist docking 

 officers in filling out the present form (N.B.S. 

 223), especially in regard to estimating the ex- 

 tent of fouling, and identifying the marine life 

 with which a ship is fouled. It is requested 

 that particular care be taken to insure that the 

 reports are prepared with care and submitted 

 promptly. 



A28183 



