546 Meteorological Obfervations. ° 
tb 
has been long. valued for indicating the 
changes of the weather; and philofophers 
have not (as far as he knows) made any 
ufe of it, befides remarking the mean and 
extreme heights of the mercury; circum- 
ftances which are much influenced ‘by local 
elevation: but tables exprefling the {paces 
moved through by this fluid in the tube, 
for the feveral months of a feries of years, 
promife to be of more fervice to fcience. 
For, by comparing part of that which follows, 
with one made from the obfervations of the 
Royal Society, I find (fays he) that the 
motion in queftion, as well as the rain, is 
much lefs at London than at Kendal. I do 
not pretend to account for this curious cir- 
cumftance.. Meteorology is too near a ftate 
of infancy to admit of complete explanations. 
Fads not theories are what we want; and if 
they be ever obtained, the joint labours of many 
obfervers muft fupply them. The tables here 
recommended are liable to fome imperfec- 
tions, which need not be pointed out to thofe 
who underftand the ftructure of the inftru- 
ment. The inaccuracies are confiderably 
diminifhed in mine, by the bafon and’ tube 
of the barometer being wide; and by taking 
the obfervations three times a day, which is 
alfo done with the thermometer.” 
Space 
