532 : HENRY A. HUNT. 
for the generation of these storms. The winds are generally 4 
blowing any way, and excepting those of the eastern high 
pressure have apparently no circulating power. ; 
These were the conditions at 9 a.m., but as the day advancel q 
the col area advanced with its arid heat, and this acting upon the : 
precipitated moisture of the previous two days, resulted in the : 
tornado which we are about to describe, and which occured at 
Bourke on the morning of March 21st, being one of the most 
terrific ever witnessed in that district. It struck the town at 10 
o'clock, but could be seen approaching for some time from 4 : 
north-westerly direction. It only lasted six minutes, but during . 
that period thirty-nine points of rain fell, and several hundrel 
pounds’ worth of damage was done to houses. Chimneys, vera 
dahs, trees, etc., suffered and general consternation pre led, 
Many narrow escapes occurred, as the cyclone came across the 
common from the ‘direction of Fort Bourke. The theatre ™® 
unroofed and a quantity of beams and iron was deposited in # ; 
adjoining yard. Pleasure boats on the river were sunk, and § E 
steam-boat was considerably damaged by the falling of a larg? i 
gum tree. a 
TYPE X.—CYCLONES FROM NORTH-EAST. q 
A comparatively small number of these storms reach the cos q 
of Australia, and owing to the almost complete absence of obser 
ing stations, New Caledonia excepted, and the small number # ‘ 
vessels passing their tracks, it is usually impossible to trae? 
course before they reach Australia, but there seems to 
to doubt that they are more or less spent tropical cyclones, 
reach Australia in the act of recurving. The majority reach 
coast of Queensland between latitudes 20° and 26°; some” 
north and south ; only one has been traced from the coast nls 
and then recurving there to south-east. It reached the one 3 
the neighbourhood of Brisbane in January 18°93, passed 9 
over the mountains, gradually curving to south past Mudge oe q 
Dubbo, thence curving easterly it left the mainland about a | 
35°S. Its course was marked by violent cyclonic wind ane’ 
a 
be no ress | 
