Review of the Results of the U. 8. Coast Survey. 251 
port. 
erally supposed, a single broad current of warm water flowing 
i @ northeasterly direction, but that it is in reality an agere- 
Oms, 
In this manner ten sections were surveyed, the temperatures 
being deter 
thermometers, and for greater depths with Saxton’s metallic ther- 
rents flowing from the Gulf of Mexico into the north Atlantic, 
& glance at the Coast Survey map shows us at once the existence 
of at least fo 
by eold bands, a fourth eold band separating the first or inner 
fined. The most cursory observation shows that these bands are 
et to the outline of the coast, and that as we recede from 
re shore upon any section they become broader, ess. 
i d masses. The Gulf 
- te. As might naturally be ex 
oot water tends to occupy t b 
orming a level plateau it follows the irregularities of the 
bottom 
W , . 
wha currents, and we find accordingly that in each section, as 
“S examined, the curves which represent the depths corres- 
dat We find a range of hi : 
dred range of hills, ‘les on the seaward side. 
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