Physical Geography of the Great Oceans 105 



ligher at the western than at the central station. The 

 mean temperature of the layer between the surface and 140 

 fathoms, where the temperature curves cut each other, i- 

 69-8 at the central station, and 77-5 at the western. The 

 current per day logged at the western station was 30 miles, 

 \\hile it was 70 miles at the central one. 



To the north and to the south of the equatorial bights 

 of the western shores of Africa and America we have a 

 n-markable similarity in the distribution of temperature in 

 the coast waters. The transition from equatorial heat to 

 ! cold is very marked; on the North American 

 shore, at Cape St Lucas, the southern extremity of the 

 falifornian peninsula; on the North African, at Cape Verde 

 on the South American shore, at Cape Blanco; and on the 

 South African, at Cape Frio 1 . These areas are marked on 

 the map. The very low temperature of the coast water i- 

 'ularly remarkable on the Morocco coast, and it extends 

 round Cape Spartel into the Straits of Gibraltar. Here the 

 temperature of the surface water is usually 10 F. lower than 



1 See Chart of the world betueen pp. 106, 107. 



In this chart the direction of motion of the water in the different 



1 by arrows. The observer is supposed to be i.>. 

 rth and looking down on the surface of the sea ; the current tl 

 hown by an arrow floating on the surface of the 



and pointing towards t lie east; a current flowing tir,i east to west is shown 

 Qg on the surface of the 1 pointing t\- 



motion ater is vertical and 



below shown by the symbol which ; 



>n of the current i-> j unting direct 1\ 

 l)server and sh>\\s only its point. When the water is desccn 



m this i> indi< ate.l >l 



now whit h shows tlu- dmvtion of the -m rents 

 MI the observe: its butt 



with rs in sect 



Id watei st coast of Son 



Cape Ulan, o m latitude j i has been atti 



a surface current t 



ocean depths contu: 

 ' and ha- nt capable 



i water to be 1 



i th- Ar. ti. ocean and was callr 



