54 On the Gulf Stream and the Keys of Florida, 
qualities of surface, and offering, therefore, much resistance; 
hence are generated partial currents upw ard and downward, to 
the right and left, which thoroughly mix, as if by a so sort of 
ebullition, the waters of the river. It is impossible that matters 
im suspension or solution should exist in one part and not in 
another ; ¢.g., that sediment should be carried by the deeper 
strata, while the superficial strata remain transparent. But with 
oceanic streams the case is quite different. Their = pga pen 
and the fact that they are bounded on all sides by still w. in 
other words that they run ove se even beds and cian 
perfectly smooth anlar causes tie m to flow without the slightest 
agitation, without the ripples and inequalities which mark the 
currents of rivers. The currents of oceanic streams, therefore, 
Such nt would n necessarily sin ager observation i in the 
. course of a few hundred miles 
Wi 
3 
1 Me. ae Lila. a a = 1 
Sees 
——— 
—— 
ote ee enone, the oi tien. commie of the 
pg eb ep explain t the application of the cacy ts to 
