30 



In discussing the earlier parts of the lighthouse tables I 

 have unreservedly stated that there is in all the observed 

 phenomena of storms in these latitudes a current and a 

 counter current of the wind — one of them usually being 

 Equatorial, and the other Folar ; but in the present instance, 

 as in the American storm investigated by Professor Loomes, 

 both currents were nearly Polar, no traces of so called Circular 

 storms are observed. Such storms, in and near the tropics, as 

 well as Equatorial and Polar currents of wind, may be 

 accounted for astronomically ; but better data, and more 

 experience are required before any definite conclusion can be 

 arrived at relative to cyclones within the area comprised in 

 these registers. 



Opposite currents of the air are frequently observable in the 

 different motions of the upper and lower strata of the clouds, 

 in which case it requires only an increase of temperature in 

 the lower partof the atmosphere to transpose the upper and the 

 lower currents, frequently causing a deflection which may 

 change the direction of both. 



The Eev. W. B. Clarke, in some remarks made upon a paper 

 on Australian storms, by Mr. John Tebbutts, junr., read before 

 a meeting of the Philosophical Society at New South Wales 

 on the 7th September, 1864, quite agrees with the author that 

 there are always two winds at work in all great derangements 

 of the atmosphere in Australia. Mr. Clarke also in a paper 

 read before the same Society, speaking of the hot winds, says 

 that they frequently Commence at Sydney from seaward at 

 N.E., and end at S.W. or S., clouds for hours preceding the 

 change gathering in the S.W. by condensation of the vapor 

 suspended by the N.W. wind through the contact with the 

 S. wind. The hot N.E. wiud is in reality the N.W. current 

 deflected by the N.E. wind. This explanation assimilates very 

 closely with the fact of the hot wind approaching Auckland, 

 New Zealand, from seaward at E., which has been accounted 

 for in the 25 years' tables. 



A paper I had the opportunity of reading before the 

 Society in May last,* the facts of which were obtained from 

 noteworthy records kept at the Cape of Good Hope, Hobart 

 Town, and Auckland, New Zealand, will go far to shew that 

 all previous authorities, although following each other pretty 

 closely, appear in some cases to have had no personal 

 knowledge of the records connected with these islands, and 

 have required more and longer continued registers relative to 

 them than those obtained from the Board of Trade, or from 



*See Papers and Proceedings of Royal Society of Tasmania for May, 1867, 

 page 13. 



