--+
"_Remark printed in the Register._
"The changes of the wind during the December gales have been nearly
the same in all: _i. e._, commencing with a southerly wind at first,
the wind has veered by the west, toward the north-west, sometimes
ending as far round as N. N. W."
These extracts show the passage of several successive belts, each with the
phenomena in regular order.
The first commences with blue sky and detached clouds, barometer up,
thermometer down to 65 deg., and nearly calm, on the 30th of November.
Dec. 1 (at noon). Wind freshens from S. S. W.; thermometer rises;
barometer still up.
Dec. 2. Barometer has fallen; thermometer up; wind increasing from S. W.,
with gloomy, squally appearance.
Dec. 3. Wind S. S. W.; barometer slowly falling; thermometer slightly.
Dec. 4. Wind fresh; S. W.; condensation and rain has reached them, and it
carries barometer and thermometer down.
Dec. 5. Wind shifting by the west, and squally.
Dec. 6. Winds gets N. W.; blows fresh; barometer at its minimum, probably
at the time of the change of wind, although the register does not show the
precise time.
Dec. 7. Wind N. N. W.; blue sky and detached clouds (N. W. scud), cleared
off; barometer elevated by the N. W. wind, from 29.55 to 29.78. Midnight:
blue sky; detached clouds (N. W. scud probably); barometer up to 29.89;
thermometer fallen, from the cooler character of the northerly wind.
Dec. 8. Wind having lulled as a northerly wind has got round to S. W.
again; thermometer up; barometer falling, and another belt approaching,
and so on.
The first and last part of December show each two regular occurrences of
substantially the same phenomena. The middle is somewhat more irregular.
There were five distinctly-marked periods, and one squally, long-continued
period, with a slight tendency to condensation, and a slight fall of
barometer and rain on the 19th (N. W. squall probably), but not sufficient
to reverse the wind to the south. In Colonel Reid's opinion there were
five revolving gales which passed over Bermuda during the month. In my
opinion, there were five perfect polar waves of condensation, and one
imperfect one, with as many successive southerly winds preceding the
condensation, with or without rain in the center, followed by as many cold
N. W. or N. N. W. winds, with squalls, in the rear, about five days apart.
(See the * in the barometric column.)
_We are at issue._ Let
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