CHAP, v.] 



THE GULF-STBEAM. 



361 



In the North Pacific Ocean. (Fig. 101.) 



From a depth of 300 fatlioins to a depth of 1500 fathoms the 

 temperatures in the North Pacific are greatly lower than those 

 in the North Atlantic. In both oceans the temperature gradu- 

 ally falls for every zone of equal depth in passing from west to 

 east, as the influence of the reflux of the equatorial current be- 

 comes weakened. The table given on page 368, which is con- 

 structed from the same serial soundings which are represent- 

 ed graphically in Figs. 100 and 101, shows at once the east- 

 ward cooling, and the much greater condensation and accumu- 

 lation of warm water in the basin of tlie North Atlantic. The 

 most marked phenomenon of the Gulf-stream, the condensation 

 and superheating of the water of the equatorial current in the 

 Caribbean Sea and the Gulf of Mexico, and its ejection in a de- 

 flned hot stream through the Strait of Florida, has no parallel in 

 the Pacific, and the Kuro Siwa must be regarded as represent- 

 ing that diffused portion of the reflux of the equatorial current 

 which passes northward outside the West Indian Islands. 



On the 26th we "sounded in 2650 fathoms. Serial tempera- 



