Masterpieces of Science 



called lanthinae, are now and then brought as 

 visitors to our coasts, though usually confined 

 to warmer seas far to the south and west. 



Perhaps the best known of these oceanic cur- 

 rents is the Gulf Stream, which is a broad body 

 of warm water sweeping out of the Gulf of Mexico 

 through the Strait of Florida. After running 



FIG. 44. Map of the Atlantic, showing course of the 

 Gulf Stream 



northwards, nearly parallel to the coast of the 

 United States, it strikes across the Atlantic 

 Ocean in a north-easterly direction. Warm 

 currents, which continue the direction of the 

 Gulf Stream, set on to the western shores of 

 Britain and even extend to the coast of Norway; 

 other currents, parting with these in mid-ocean, 

 turn to the south and sweep round the coasts of 

 162 



