SAFEGUARDS OF THE SEA 87 



ing to guide him but black and red sticks or 

 huge, coloured, iron cans bobbing about in 

 the water. 



But to the sailor each of these signs or buoys 

 and many other marks, which the landsman 



SAFEGUARDS OF THE SEA 



I. Red spar buoy 2. Black spar buoy 3. Red and black danger buo^ 

 4. White and black channel buoy 5. Anchorage buoy 

 6. Red nun buoy 7. Black can buoy 8. Gas buoy 9. Bell buoy 

 10. Whistling buoy 11, 12, 13. Perch and ball beacons 



fails to note, mean a certain thing and the 

 mariner knows that if he follows the course 

 indicated by the buoys he will be perfectly 

 safe. 



For example, he knows that when leav- 

 ing a harbour he must pass all the red 

 buoys on the left or port side of his ship 



