EXPLORATIONS, WESTERN ATLANTIC, STEAMER BACHE, 1914. 29 



O.lT'^/oo (from 35.93 to 36.1%o), the surface being freshest on the Cuban 

 side, above the sal test water (36.5^/oo), as just noted. 



Apart from a possible salt tongue in the center of the channel, the 

 salinity curves as a whole dip from north to south, and it is worth 



Meter 



Stations 

 198 201 



Fig. 25.— Salinity profile, Key West-Habana. 



noting that the same vertical range of salinity (36 to 35°/oo) which 

 occupies 900 meters at the southern end was condensed into 250 

 meters at the northern end of the profile. 



Temperature, Centigrade 



Fig. 26.— Temperature sections on the Gun Cay-Cape Florida line; stations 10202, 10203, 10204. 



Between Cape Florida and Gun Cay the channel is only about 900 

 meters deep and 60 miles wide. Nevertheless, we find as great a 

 range of saHnity (fig. 27) and almost as great a range of temperature 

 (fig. 26) as in the Key West-Habana profile. As before, the water 

 was coldest and freshest next to Florida, warmest and saltest off 

 the Bahama Bank; and the two eastern stations are saltest (36.5Voo) 



