226 THREE CRUISES OF THE “ BLAKE.” 
800 fathoms than we find in the corresponding belt of the sec- 
tion of the Windward Passage between Cuba and San Domingo. 
This section has in fact at that depth more the character of an 
oceanic section than has the section of the Windward Passage. 
This may be due, perhaps, to the fact that the water in the 
eastern part of the Caribbean is not so greatly superheated 
as in the belt to the northward of the Greater Antilles, from 
St. Thomas to San Domingo, which is forced into the funnel 
ending in the Old Bahama Channel, and finds an outlet into 
the Honduras basin of the Caribbean through the Windward 
py Pedro Bank. 
y 
Cape Cruz Cuba 
Fig. 151. 
Passage. Or it may be that the colder water which flows into 
the eastern Caribbean through the Anegada Channel passes 
to the south of Porto Rico and San Domingo as far as the 
cafion which connects the eastern Caribbean with the Honduras 
basin. 
In the section from Santiago de Cuba to Jamaica (Fig. 152) 
across the Formigas Bank, there are no marked departures from 
the temperatures of the section across the Windward Passage. 
This section goes across the eastern extremity of Bartlett's Deep 
(see also section, Fig. 153), and at a depth of 2,978 fathoms 
has a temperature of 39°. This temperature may be due to the 
cold water on the ridge of the Windward Passage (39° at 932 
