270 Dr. Garnett’s Arrangement 
nottherly wind, and a hard froft with a fouth-welt 
one, for near twenty-four hours each, which could 
only be accounted for from the firft being preceded by 
a high barometer, and the latter by a low one. 
~ Tam now convinced that the altitude of the bar- 
mometer, as it recedes from the medium of the 
month, muft be followed by certain confequences, 
which can be reduced to a matter of calculation, and 
depended on perhaps with more than moral certainty. 
Every remarkable elevation of the barometer, 
where it is of any duration, is followed by very warm 
or by dry weather, and moderate as to wind, or by 
all of them; but heat feems to have moftinfluence and 
connection ; and when it is deficient, the continuance 
of the other two will be the longer and more remark- 
able; therefore the calculation muft be in a com- 
pound ratio of the excefs and deficiency of the heat, 
and of the drynefs of the weather in comparifon of 
the medium of the feafon; and with regard to the 
want of ftrong wind, it appears to be intimately con- 
nected with the laft, as they fhew that no precipitation 
is going on in any of the neighbouring regions: per- 
haps a reafon for this will appear on confulting my 
former remarks, No. 24th.—You will therefore find 
every remarkable fituation of the barometer which is 
calculated in the inclofed ftates, for each month, an- 
jwered by a correfponding abberation from the me- 
dium as to temperature, taken together with the 
greater or lefs quantity of falls; and if it is not fully: 
anfwered 
