8 . Loomis—Results derived from an examination of the 
vails within an area of low barometer takes piaen principally 
on the east side of the low center, as is indicate iti 
of the rain-areas described in my 7th paper. By this upward 
the west side of the low center. Thus the low center is 
steadily transferred toward the east, or the storm travels 
east 
ward. 
The areas of- high barometer which uniformly mark the 
commencement of a storm, invariably attend it during its pro- 
gress eastward. During the progress of the storms recorded in 
the table on page 2, the average value of the high barometer 
on the east side was 30°39 inches, and on the west side 30°32 
inches, which numbers are almost identical with the values 
n 
atmosphere, and this supply evidently comes from the areas of 
low barometer. In other words, during the progress of storms 
barometer. 
An inspection of column 4th of the table on page 2, shows 
that these cases of low barometer occur most frequently in the 
neighborhood of the Atlantic Ocean. This will appear from 
the following table, in which the stations are SS into three 
classes; one class including the stations near the Atlantic 
coast or the Gulf of St. Lawrence, a second class including the 
‘stations between the preceding class and the meridian of 92° 
from Greenwich, the hind clase including stations west of the 
sridian of 92°. | 
MDM aii ten a estas <tare), SVE The As Pie Neer WEARS so Meh aay Abo OW Pi) ake, Noe hie SS Soy ot PR 
