of Meteorological Obfervations, ~ ou 
ainfwered in the fame month, it is always fufficiently 
attoned for in the one that follows; two inftances of 
which may be feen in January and February, 1791 
and in Apriland May, 1792. 
Some farther extenfions of thefe mediums might be 
made out in the ftates, particularly with regard to the 
thermometer, but my time would fearcely permit me 
to coinplete the one for the year 1792 in the form you 
fee it. I thought it unneceffary to tranfmit the one 
for the year 1791 till I could fend you both, as the 
year was fo near a clofe; you have therefore both 
inclofed. r 
I alfo think another remark may be added to thofe 
formerly fent, viz. that where two water-gages are 
kept, the one higher than the other, where the quan- 
tity in the loweft very much exceeds that of the high 
one, it isa fign that the fall will be of fome continu- 
ance, but where the quantity in the higheft is equal 
to, or even exceeds, in a fall degree, the lower one, 
which is fometimes the cafe, it is a fign that the bad 
weather is over, or nearly fo, and dry weather for a 
few days may be expected *.—There is a difference 
of 
* This fa& obferved by Mr, Copland, may be eafily ac- 
counted for, becaufe when the quantity in the lower gage 
very much exceeds that in the higher one, it ihews a ftrong 
difpofition in the whole atmofphere to depofit its moifture, 
and confequently bad weather may be expeéted; but when 
the quantity in the higher is nearly equal to, or exceeds that 
in the lower gage, it fhews the atmofphere to have been in 
a ftate 
