t 423 ] 
Nov. 19. The air is pretty firongly electrified ; 
but the wind is fo very troublefome, that I cannot 
determine the kind with certainty. 
Dec. 2. Half pa(t eight, A. M. a fog, mo- 
derately thick, is firongly electrified. The balls 
diverge half an inch ; but, if they are brought 
near the building, they clofe, and open again on 
removing them. The mercury in the thermo- 
meter, is fifteen degrees, above the freezing 
point. 
Dec. 1 8. Half paft' four, P. M. a moderately 
thick fog is firongly electrified, foon after its ap- 
pearance. The balls diverge, full half an inch, 
and regularly clofe, at the approach of excited 
wax. The wind is troublefome ; but the balls 
keep their difiance, and at intervals very well ad- 
mit trying the experiment. 
1772, Jan. 5. A fog is firongly eleCtrified po- 
fitively. The balls diverge full half an inch. The 
air" is fiiarp, and frofty. 
Jan. 13. Nine o’clock, A. M. a fog, not very 
thick, is firongly electrified pofitlvety. The mer- 
cury in the thermometer, is feven degrees and an 
half above the freezing point. There is little or 
no Wind. 
Jan. 18. Ten o’clock, A. M. The air is' 
pretty firongly eleCtrified by a fall of fnow. 
Jan. 21. Nine o v c!oek, A. M. I find the air 
firongly eleCtrified,, during a fall of thin fleet y a 
mixture, of fnow, and rain, very gentle. The 
balls feparate three quarters of an inch, and re- 
main fiationary, there being little or i>o wind, 
N. B. The electricity in the air is pofitive. 
Jan. 2Q0 
