8. The radio messages from the patrol ship will be given publicity 

 immediately upon their receipt by the Hydrographic Office, Washing- 

 ton, and by the branch hydrographic offices at Boston, New York, 

 and Norfolk. 



9. Each patrol vessel will keep a remark book in which will be en- 

 tered all data and information that can be collected concerning the 

 ice. 



10. Each vessel, on being relieved by the other vessel, will deliver 

 to the relieving vessel a copy of each radiogiam sent to or received 

 from the Hydrographic Office during the cruise, and a copy of each 

 instruction received from headquarters. 



11. At the end of each cruise each vessel will forward to head- 

 quarters a full report in triplicate. Each vessel will send these reports 

 direct to headquarters and furnish a copy of each report to the other 

 vessel on patrol. 



12. Each vessel will plot on tracing paper used in connection with 

 the appropriate plotting sheet the positions and extent of the ice as 

 located from time to time. Such data will also be plotted on a dupli- 

 cate tracing paper, and this duplicate will be delivered to the reliev- 

 ing vessel. 



13. If, in order to avoid delay in any emergency, it becomes neces- 

 sary for the junior commanding officer to communicate directly with 

 headquarters, a copy of each such communication shall be furnished 

 tp the patrol commander. 



14. Barometers of patrol vessels must be calibrated by the United 

 States Weather Bureau before sailing on patrol duty. 



F. C. BiLLABD. 



