excessive rainfall, the total fall being the most recorded in August 
since 1843 : it was 1.83 in. above the average of the hist thirty-six 
years. A fall was recorded in the barometric pressure from 29.873 
at 9 p.m. the Gth to 29.494 at 9 p.m. the 7th, followed by a heavy 
shower of rain from 8 to 11 p.m. on the 7th. A very heavy 
shower occurred at 5.30 p.m. the 15th, the unusual amount of 
0.G9 in. falling in twenty minutes; the barometer was steady and 
the wind light from the S.S.E. Another heavy shower occurred 
between 8 and 10 a.m. on the 19th, the barometer gradually 
falling, and continued to fall until 9 a.m. the 21st, when 29.48G 
was registered, and followed by a S.S.W. and S.W. gale from 9 
a.m. to G p.m. on the 21st, and a thunder-storm at 1 p.m. the 
22nd. On the 28th rain fell from 5 to 10 a.m., followed by a 
S.W. gale from noon to 8 p.m. 
September. 
This was a cold and gloomy month, the mean temperature was 
3.5 degrees below the average : this deficiency occurred chiefly in 
the day temperatures, which were about 3 degrees below the usual 
mean. Mr. Glaisher has slated that this was the coldest Sep- 
tember recorded at Greenwich since 1803. The barometric pres- 
sure averaged high, being about one-tenth of an inch above the 
usual value; no remarkable oscillation was recorded. The rainfall 
was 0.20 in. above the average. This month commenced with two 
fine bright days; the maximum temperature with a S.W. wind on 
the 2nd being G6.5 ; but early on the 3rd the wind backed to 
N.E., and the maximum temperature was only 5S.0. The day was 
very wet, with much thunder and lightning; the very unusual 
amount of 1.45 in. of rain was recorded between 9 a.m. and 5 p.m. 
<tn the 3rd. On the 4th rain fell from 9 a.m. to 2 p.m. amounting 
to 0.25 in. The following six days were fine, with light variable 
winds and barometer very steady at about 30 inches. From the 
1 1 th to the end of the month the weather was unusually gloomy, 
the sky being generally overcast, and frequent showers of drizzling 
rain; the winds were rather squally from the S.S.W. and S.W. 
from the 12th to the 15th, and light from the N.W, during the 
remainder of the month. 
