=Westbound.=—Steer from Fastnet, Inishtrahull, or 10 miles south of Bishop Rock on a course 10 miles north of the Great Circle track until approaching Belle Isle. NOTE.—Vessels bound to or from U. S. Ports FROM OR TO THE NORTH OF IRELAND have the option of following the Canadian Seasonal Track “F” passing 40 miles south of Sable Island WESTBOUND, thence to position south of Nantucket, and EASTBOUND from position 40° 10′ N. in 70° 00′ W. to position 60 miles south of Sable Island. =8.= TO ALL OBSERVERS Many letters to observers acknowledging reports of marine data are returned to the Hydrographic Office on account of wrong or insufficient address. It is realized that mariners change their addresses frequently and their mail in consequence is frequently delayed and sometimes lost; but the office is anxious to get letters of acknowledgment through to each observer, and to accomplish this it requests observers to indicate plainly in reports where acknowledgments should be sent. Should any observer fail to receive an acknowledgment of information furnished this office, he may be sure that it is due to faulty address, as every report is acknowledged. =9.= LOCAL WEATHER For extended remarks on wind and weather along the more important coasts, see the Sailing Directions published by the U. S. Hydrographic Office. =10.= CURRENTS NORTHWARD OF BAHAMA ISLANDS In the angle between the Gulf Stream and the Bahama or Antilles Current, and the Bahama Islands to approximately latitude 30° N., currents setting southward have been experienced. =11.= U. S. COAST GUARD STATIONS All U. S. Coast Guard Stations on the Atlantic and Pacific coasts are equipped for signaling by the International Code, the Semaphore Code, the Occulting or Flashing-Light Code, and the International Morse Code (Wigwag). On the Atlantic coast those stations north of Cape Hatteras, with few exceptions, and on the Pacific coast those stations near lines of communication, are prepared to transmit messages of passing vessels either by telegraph or by telephone and telegraph combined. =12.= NOTE TO OBSERVERS.