Ocean Currents

Abstract

MY rejection of the idea that permanent differences of atmospheric pressure could produce any effect on Ocean Currents, was meant to be as sweeping as Mr. Johnston considers it. I believe that the idea is repugnant to the most elementary conceptions of hydrostatic equilibrium; and I am particular in so far repeating the gist of my former letters, because Mr. Johnston, in his letter in NATURE for March 9, reiterates his suggestion that difference of atmospheric pressure is a power in the production of Ocean Streams, and whether he suggests that it is a supplementary power, or a chief one, is nothing to the purpose, if, as I distinctly maintain, it is not a power at all.