of M etcorological Obfervations. 269 
contains feveral ufeful and interefting remarks, I 
fhall take the liberty of inferting here. . 
Dumfries, Fan. 15, 1793. 
SIR, 
I was informed by a letter from Dr. Pers 
cival about fix weeks ago, that my meteorological 
ftates and remarks, with thofe of feveral others, had 
been tranfmitted to you for your perufal and arrange- 
ment. I have now had near two, years longer time 
to reflect on them, and have not as yet feen reafon to 
alter any one of them entirely. No doubt fome of 
them may be judged unneceflary ; andthe arrange- 
ment and drefs they appear in may be reckoned im- 
proper; but it fhould be remembered that they were 
originally intended for a newfpaper, and were in no 
refpect altered from that order, which I now regret. 
There is one, viz. that the barometer is a moft cer- 
tain indication of heat and cold, however imperfe& 
it may be with refpect to wet or dry weather, which 
I believe is my own, 
Through the whole of the winter preceding the 
prefent, I was attentive to the changes and alterations 
of the weather, and found that not one from cold to 
moderate weather, and vice verfa took place without 
its being fufficiently pre-indicated by a confpicuous 
rife or fall of the barometer; and I believe no winter 
was more completely varied either in temperature or 
falls. There was an inftance of a free thaw with a 
northerly 
