1.52 THE OCEAN. [Book "SI. 



On the west of the ocean : ' It is high water 

 at about l'^ from 30° to 40° N.' ^ This accords 

 with the tide which rolls from the east through 

 the equatorial regions. But Admiral Fitzroy goes 

 on to say : ' The times increase northwards from 

 40° N. to the Bay of Fundy, and also southwards 

 from 50° N. to that bay.' ^ The times increasing 

 northwards from 40° N. to the Bay of Fundy shows 

 fhe eastward motion of the tide in the temperate 

 zone, and the times increasing southwards from 

 50° N. appears to accord with the configuration 

 of the coast, which causes the portion of the tide 

 drawn eastwards from the coasts of Labrador to 

 interfere with that drawn eastwards from the coast 

 of the State of New York. 



' It is high water at 6^ on the coast of Brazil, and 

 at D'' about Blanco Bay (in 40° S.).'^ This shows 

 the equatorial tide rolling westwards, and then turned 

 southwards by the coast. 



' From 50° S. to near Blanco Bay, in 40° S., the 

 tide-wave certainly travels along the coast to the 

 north.' ^ This accords with the tide which rolls east- 

 wards through the temperate zone of the southern 

 hemisphere, and sets northwards along the coast of 

 Patagonia after rounding Cape Horn, but at the same 

 time tends to follow its eastward course through the 

 temperate zone of the South Atlantic Ocean. 



Adrairal Fitzroy speaks of ' the flood-tide moving 



' P. :38-i. 2 p, 3S4. 3 p. 383. ■\ p. 352. 



