On the Cyclones of Tasmania, ec. 413 
additional value on account of the occasional activity of 
the volcanic forces in those islands. The following severe 
Cyclone experienced there by Captain Cook seems to have 
belonged to the Port Essington class. 
After leaving the Bay of Islands, in order to pass round 
the North Cape of New Zealand, Captain Cook appears to 
have fallen in with the northern half of a violent Cyclone 
moving to the eastward, and which had therefore probably 
passed along the South Coast of Australia previously. The 
details are given with Oook’s usual precision, at p. 159 of 
the First Voyage; the storm began at N.N.W.., veering to 
W., with a large swell rolling from westward. On the 28th 
December, 1769, it veered to 8.W., and increased from a 
gale to a hurricane, with a prodigious sea. Nothing is said 
of the behaviour of the barometer, but Cook's concluding 
observations show the violent nature of the storm: he says, 
«“ jt is very remarkable that in 85° S., and in the midst of 
summer, I met with a gale of wind which, for its strength 
and continuance, was such as I had scarcely ever been m 
pefore; and we were three weeks in getting 10 leagues to 
the westward. During the gale we were happily at a con- 
siderable distance from the land, otherwise it is highly pro- 
bable that we should never have returned to relate our 
adventures.” 
Captain Brown, of the brig Hmma, has favoured me with 
his Journal of the voyage of the ship Strathisla, from 
Auckland, New Zealand, to London, in 1846, which enables 
me to trace this class of Cyclones far to the eastward of New 
Zealand. On the 23rd October the ship was hove-to, in a 
heavy gale from the North. On the 24th the wind shifted 
from N. to N.W.; from N.W. to W.; and from W. to 8.W., 
which hove the sea up in sugar-loaves, and caused the ship 
to strain and labour much. Position 52° 8, and 181° W. 
