Ellsworth American. [volume] (Ellsworth, Me.) 1855-current, 1871-10-05

IL tie fourth meteorolox ical report bv
Prof J. /. k>py. OF Washington. ID. G..
We IND the following instructive general
lzations
The rain aud snow storms, aud even
the moderate rains and SHOWS, travel from
the wet towards the east In the United
States durius the months OF November.
December. January. February and March.
which are the only months 10 which these
geueTalizatiou> apply
The storms are accompanied With 4
depression OF the barometer near the ccn-
tral line 4 the storm, and a rise Of the
I barometer ia the front and rear
@-I h.> central line Ct minimu.n pres.
ar = generally Of great length from north
IL s"ulh. and moves side foremost toward,
the east.
This line j sometimes nearly straight
hut generally curved. and most frequently
with il, convex side towards the east
The velocity Of this line j. such that
II travels from the Mississippi 10 the Con.
hecticut river in tweniy-four hour. and
from the Connecticut TO II. Johns, New
iuundAnd- II nearly the same or about
( thiriy>.x miles an hour.
When The barometer falls suddenly
in the western part OF New England. Il
rises at the same Lime Ia the valley OF the
Mississippi, aud also At 81. Johns. New
iouAd. aud.
In great storms the wind for several
hundred miles on both sides Of the line 81
minimum pressure blows toward that liuc
directly or obllquely.
o-The force OF this wind Is in proper
tlon to the suddenness aud greatness uf
the depression OF the brrometer
I'm all great and sudden dcprc>sions
Of the Barometer there j. much rain or
snow and in all sudden grea: rains or
SHOWS there l. a great depression OF the
barometer next the centre OF the storm.
and rise beyond its borders.
l"-Many storms are OF great and uu-
known length from north 10 south. reach
ing beyond our observation ia the Gulf OF
Mexico and on the Northern lakes, while
their east and west diameter j. company
lively small. These storms Therefore
move side foremost
ll-MOst storms commence ia the far
west" beyond our western observations.
bat some commence in the United States.
l2-N hen storm commences in the
United States the line OF minimum pres
sure does not move from the far west. 4"
but commences with the storm. and trav-
el> with i toward the eastwcrd.
l3-Ihere l. generally lull OF wind nj
the line OF minimum pressure, and some
times a calm.
IN hen this line OF minimum pres
, sure passes an observer toward the east.
the wind generally soon changes to the
west and the barometer begins TO rise
l5-Ihere is generally little wind near
, tie line OF the maximum pressure, and on
, each side Of that liue the winds are iri e.u-
lar but tend outward from that line.
1.-THE fluctuations or the baromete
: are generally greater in the eastern than
: I in the western part of the United States
, 1.-The fluctuations Of the barometer
are generally greater In the northern than
IN the southern part of the United States.
ls-In the northern part OF the United
B States the wind generally sets in from the
north of east. and terminates from the
north OF west
BIN the southern parts of the United
states the wind generally sets IN from the
south OF west.
20-During the passage Of storms the
wind generally changes from the eastward
to the westward by south, especially in the
southern parts of the United States.
2l-The MOI hern part of the storm gen.
= orally travels more rapidly toward the
east than the southern part.
r 2l-During the high barometer on the
: day preceding the storm ii is generally
clear and mild in temperature, especially
If very cold weather preceded.
23-The temperature generally falls sud
y denly on the passage Of the centre OF great
storms, SO that sometimes, when a Storm
is ia the middle OF the United States. the
lowest temperature of the month will be
in the west on the same DAY that the high
u est temperature is in the east
Some of the storms, it is true are con-
tanned for time within the bounds of nv
observers, and in that case the minimum
: barometer does not exhibit itself in a line
of great length, extending from north to
south, but IL is confined to a region near
the centre of the storm, and travels with
the centre towards the eastward
S From these experiments it may be safely
inferred. contrary to the general belief Of
scientific men, that yapor permeates the
2 air from high to low dew point with
: extreme slowness, il, indeed, 1t permeates
il at all and in meteorology, it will here
after be known that vapor raises into tn.
v regions where clouds are forced only BY
being carried up by ascending current,
Of air containing it.