EXPLORATIONS, WESTERN ATLANTIC, STEAMER BACHE, 1914. 31 
meters off Cape Florida; to about 250 meters off Key West. The 
same lenticular mass of 36.5°/,. water (fig. 29) is to be seen on 
the Bahaman side and at the same level (200 meters), as off Cuba 
in the Key West-Habana profile. As in the latter, the surface is 
freshest where warmest, though this is now in the center of the 
Strait instead of on the Bahaman side. The whole range of surface 
salinity is only about 0.1°/,.. The curves for temperature colder 
than 20°, and salinities lower than 36°/,., dip regularly from 
west to east, the curves for 36°/,. and 15° coinciding almost 
exactly with each other, and the slope growing progressively steeper 
with decrease of temperature and salinity. The saltest and coldest 
water was in the deepest part of the channel, 34.85°/,, and 6.16° at 
800 meters. 
Stations: 
Meter Og 204 : - 203 - pee BORE ares 
10I>— — — — — — — — — — — — — 
200 
300 
uo 
OTE. > LP», 
Vy 7 YL. YHA, 
We ili 
Fig. 29.—Salinity profile across the Straits of Florida, Gun Cay to Cape Florida. 
Comparison between these two profiles shows that the subsurface 
temperatures between Cape Florida and the Bahama Bank agree 
very closely with those of the northern half of the Key West-Habana 
profile, the curve for 20° dipping from 25 or 30 meters near Florida 
to about 250-275, the curve for 15° to about 500 meters in both, 
but below 500 meters the Cape Florida profile is considerably the 
colder of the two, depth for depth, its 800-meter temperature being 
about the same as at the 1,200-meter temperature between Key 
West and Habana. There was probably a similar difference in 
salinity, though owing to the lack of data at stations 10198 and 10201 
complete comparison is not possible. 
We find the same general type of temperature and salinity sections 
(fig. 30, 31) along the Jupiter Inlet-Bahama Bank line, the water 
saltest at 200 meters, warmest on the surface, with the same general 
rise in temperature and salinity from west to east. The total range 
of both is as great as before, but the depth of the channel having 
