48 Transactions.— Miscellaneous. 
Now, according to the difference in pressure, which has been frequently 
shown by this diagram as existing between Hokianga and Wellington, it is 
evident that gales should have been more generally mentioned as occurring 
at the former station ; but in practice this is not found to be the case nearly 
so often as these differences would admit; and this is mainly caused by there 
being a spreading out of the contours at the upper part of the North Island, 
which will be more readily understood by a reference to Diagram No. 1. 
The second low area is now shown to the eastward of the colony ; and by 
the seventh day pressure is shown to be still increasing. The second binding- 
line has passed the Bluff, and this is evidently the first occasion upon which 
the barometer has stood at 30 inches at that station since the commence- 
ment of this series ; pressure at Wellington has risen to 29:90, and to 80-18 
at Hokianga. This seventh day shows the second depression at a long dis- 
tance from the land, but it is evident by the contours that it continues to 
influence the weather, as the winds are still all from the southward; but 
there is now again a widening of the contours in the South, showing the 
approach of a backing wind; the barometer at Bluff now reads 80:02. A 
further interval of twelve hours shows that pressure has continued to 
increase in the North, the readings being 80-0 at Wellington, and 80:20 
at Hokianga, but at Bluff it has fallen to 80-0, and the wind has backed 
into north. It now becomes evident that the first binding-line of 80:10 
encloses not only the two areas which have already passed, but that perhaps 
several more may be approaching. The eighth day shows a fall to 29:85 at 
Bluff, but it has continued rising at Wellington, where the barometer reads 
90-06, the second binding-line having passed, and pressure has also in- 
creased at Hokianga to 80:25. The diagram now shows that during the 
next twelve hours the barometer at Bluff has fallen to 29-75, and has a third 
lime commenced to rise, wind again changing to the south of west; and by 
the ninth day pressure has increased to 29:90, but it has decreased at Wel- 
lington to 80-02, wind backing about four points, while pressure has steadily 
increased to 30-30 at Hokianga; during the next twenty-four hours, the second 
and first binding-lines are shown to have passed the southern extreme of the 
colony, and the barometer has risen at all stations, being now 80:15 at Bluff, 
80:08 at Wellington, and 30°30 at Hokianga, all with winds from south- 
ward. The third depression is seen to the eastward of the South Island; 
the barometer continues steadily rising; and by the eleventh day the first 
binding-line is shown to the eastward of Wellington, and pressure has 
increased to 80:25 at Bluff, 80-18 at Wellington, and 30:83 at Hokianga. 
