_Fern Storms_ (Vol. v., p. 242.).--In Colonel Reid's _Law of Storms_, p.
483. _et seq._, 2nd edition, accounts are given of the violent whirlwind
produced by fires. It maybe supposed that in former times they were on a
larger scale than at present, and, from the great force described, they
might have affected the weather at least, when on the turn already.