240 
Mr. Read's Meteorological Journal 
Days. 
Wind. 
Barom. 
Ther. 
Sparks. 
Pos. 
Neg. 
j 
Sept. 16 
Inches. 
0 
and seemed to indicate that it would re- 
main so all night, as the night is per- 
fectly serene, and clear moonlight. 
Five o’clock this morning, I found the 
rod charged positive, but not quite so 
strong as when I left it last night ; and 
it gradually went off by nine o’clock, 
and returned again into the rod at near 
four o’clock P.M. from which time the 
fluid gradually increased with the cool 
of the evening, until visible sparks ap- 
peared at the brass ball N. In this state 
of intensity I left it atneareleveno’clock. 
w 
3 0< 
55 
small 
pos. 
17 
w 
O 
N 
00 
5° 
small 
pos. 
This morning, a little after five o’clock, 
I found the rod rather stronger charged 
with the same electricity than when 
I left it last night ; and I have no 
doubt but it has been electrified all 
night. The pith balls have never closed 
this day : their divergency has been be- 
tween half an inch and two inches. 
Weather serene. 
18 
sw 
0 
6 
to 
54 
small 
pos. 
Five o’clock A.M. I found the rod elec- 
trified positively, and nearly of the 
same intensity it was in when I left it 
last night ; that is to say, capable of 
emitting small sparks. The atmosphere 
this morning is perfectly serene. There 
is a dew, or low fog, about five or six 
feet high, spread over the ground in 
Hyde-Park, very beautiful to look upon 
from an upper window. For the space 
of two hours, this vapour gradually 
increased, and ascended higher and 
higher, until it quite intercepted the 
trees from my sight, and became a pale 
wet fog ; which very much injured the 
insulation of the rod : for during its 
increase in height, the electricity of the 
rod decreased, insomuch, that I had 
almost concluded that the pith balls 
touched each other. But during this 
short suspense the sun rose higher, 
and diminished the fog very fast ; and 
the electricity in the rod soon increas- 
ed to its former strength ; and so con- 
tinued all day. 
1 9 
s 
29.85 
6 3 
small 
pos. 
~ 
Five o’clock A.M. I found the rod elec- 
trified positively, but rather weaker than 
