Meteorological Obfervatious. 624 
Occur which prevent them from being imme- 
diate or complete ; fuch as, firft, the uncertainty 
whether thefe alterations of the barometer are 
accompanied, are to be foon followed, or are 
only at a confiderable diftance of time to be 
anfwered by thefe phenomena. 2d. When 
the temperament or difpofition of the feafon has 
a tendency to be dry or wet, the weather will 
refift feveral opportunities or indications of 
change,* before it will alter its prefent ftate. 
And 3d. aconfiderable fall, or a great degree of 
heat or cold coming on fuddenly, will com- 
pletely anfwer. a greater aberration of the 
barometer, and for a-longer time than what 
would otherwife have been the cafe. The 
greater falls in the beginning of laft year, and 
the leffer towards the end of it than what were 
indicated by the barometer, may be fufficiently 
accounted for from the fecond of thefe pofitions. 
It was fuggefted to me by fome intelligent 
perfons, that.a Calendar of Flora, properly 
conducted, might be of ufe to afcertain in 
what parts of the Ifland the feafons are more 
or lefs early or late; and whether a tendency 
to degenerate and grow colder can be obferved 
in the climate of this country: a fuppofed 
confequence of what has been by fome perfons 
Tiii - alledged 
* See page 242, 
