relating to Atmofpkeric Eleftricity. 189 
the metallic connexion of the bell N with the moift earth) to 
be in a contrary ftate of ele&ricity to the upper and infulated 
part, where the pith balls K are fufpended. See the 22dof Aug. 
Having made a memorandum of the feveral thunder- 
florms which have happened in divers parts of this ifland, 
according to the information by letters, and from news- 
papers, I thought it ufeful to infert them in this journal, in 
order to fhew whether fome contemporaneous appearances in 
my apparatus might not be attributed to them. This feems 
evidently to have been the cafe on the 3d of September. 
Days. 
Wind. 
Barom. 
Ther, 
Sparks. 
Pof. 
N eg. 
May 9, 3789. 
May 9 
NW 
Inches. 
30 * 
O 
neg. 
Balls open about three-tenths of an inch. 
IO 
sw 
3 0.15 
60 
O 
- — 
neg. 
But very weak. 
1 1 
E 
30.24 
61 
O 
— 
neg. 
Barely fufficient to feparate the balls. 
12 
E 
29. 9 1 
60 
fmall 
• — 
neg. 
The firft day I have had vifible fparks ; 
13 
E 
29. 9 1 
61 
ftrong 
pof. 
weather cloudy, but fair. 
The weather in the forenoon a little 
14 
SE 
3 °- 
56 
0 
pof. 
hazy; in the afternoon a thick fog; 
four o’clock a little rain fell ; the rod 
now became highly eletftrified pofi- 
tively ; the bell rang brifkly. I now 
filled feveral bottles with the fluid. 
This ftrong charge in the rod did not laft 
longer than one hour, but it remained 
charged pofitively in a lefs degree the 
reft of the day. There was this day 
fome lightning and thunder at Salis- 
bury, and to the weft of it. 
Balls open four-tenths of an inch. 
15 
E 
29.66 
53 
fmall 
pof. 
— 
A.M. and P.M. negative. 
16 
SE 
29*83 
61 
O 
— . 
neg. 
A.M. and P.M. 
17 
S 
29.91 
58 
O 
— . 
neg. 
Balls open fix-tenths of an inch. 
18 
SW 
29. 91 
57 
O 
— 
neg. 
Balls open five-tenths of an inch. 
19 
N 
30.20 
54 
O 
. — , 
neg. 
P.M. dark heavy weather. , 
20 
SE 
30.15 
5 6 
fmall 
— » 
neg. 
The rod was electrified nearly the whole 
21 
E 
30. 2 
54 
0 
— 
neg. 
day. 
Nearly the fame as the preceding day. 
May 
