Mr. Flinders’s Observations 
248 
and that for a few hours only, its average standard for these 
sixteen days being 30,25. Upon the eastern half of the coast, 
beyond Cape Catastrophe, in March, April, and May, the 
mercury stood higher than it did on the western half in De- 
cember, January, and February: the average standard of the 
first was 30,09, but that of the latter only 29,94. At the 
Cape of Good Hope, the mean height in the barometer, during 
eighteen days in October and November, was 30,07. 
The marine barometer on board the Investigator, supplied 
to the astronomer by the Board of Longitude, was made by 
Nairne and Blunt, and had, I believe, been employed in 
one or more of the voyages of Captain Cook, and perhaps 
in that of Captain Vancouver. I suspect, that it was not 
suspended so exactly in the proper place, as the later instru- 
ments of these makers probably are ; on which account, the 
motion of the ship caused the mercury to stand too high ; and 
perhaps one or two-tenths of an inch might be deducted with 
advantage from the heights taken at sea, but I think not when 
the ship was lying steadily at anchor in harbour. The baro- 
meter stood in my cabin, and the height of the mercury was 
taken at day-break, at noon, and at eight in the evening, by 
the officer of the watch ; as was also that of the thermometer. 
The general effects produced upon the barometer by the 
sea and land winds, on the east coast of Australia, will be 
learned from the following abridgment of our meteorological 
journal. 
1st. In the run from Cape Howe, in 37^-° south latitude, to 
Port Jackson, in 34 0 , once in the month of May, and once in 
June, I found that the mercury descended with light winds 
from north, NW, west, and WSW ; whilst during fresh 
