Eter showed fine weather?--Being accustomed to the barome

[Pierre]

 The depth of the compressing column of air will, at the centre, be
least, and its weight will be diminished in proportion to the violence
of the wind." Yet this has been controverted with respect to the
_general_ effect of air in horizontal motion, and the depth of the
column in question. Certainly there are two kinds of whirlwinds--one
caused by rarefaction, tending to lighten vertica
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