TYPES OF AUSTRALIAN WEATHER. 519 
The example selected and shown in Charts 6 and 7 took place 
on September 28th and 29th, 1892; on the 28th (Chart 6), it 
appears that one of these storms had developed in the previous 
twenty-four hours, at the southern end of a narrow tropical or 
monsoonal tongue of low pressure. An anticyclone of good energy 
lies to the east of it, with its isobars extending well to the north 
and contracting the width of the tongue in the north; another 
anticyclone lies to the west, and this also seems to be pressing on 
the narrow monsoonal tongue and helping to contract its diameter, 
at the same time the energy in both high pressures is adding force 
to the circulation of the wind, and so aiding in the development 
of the cyclonic circulation. A modified , depression exists to the 
south-east of the Australian Bight, and there is another over New _ 
Zealand. 
TYPES 
or 
AUSTRALIAN WEATHER 
° 
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Cae 
: aA 
oy a 
G bat 
Yelone from Monsoonal Se, . 
eee? tow 
Se, 
go ne 29th, (Chart 7), the small cyclone has extended 
ica nd energy on its way to the coast, but its motion of 
et heen rapid, and this probably accounts in a measure 
~ comparatively small area over which rain has fallen, 
althou, 
gh, in this instance, over an inch of rain fell in the central 
