141 
were the barometric readings above 30 inches. Mr. Glaisher states 
that at Greenwich there have been only four instances, during the 
present century, of so low a mean temperature for the three months 
ending June 30th, as was recorded this year. 
July. 
This month commenced Avitli a fall in the barometer from 29.980 
at 9 p.m. the 30th of June, to 29.342 at 9 p.m. the 1st of July, 
followed by cloudy, siiowery weather, and a thunder-storm, with 
hail and rain, at 7 p.m. on the 2nd. The winds during the lirst 
14 days were from tlie S., S.W., and W., and the barometric 
pressure was unusually low, all the readings being below 30 inches ; 
frequent oscillation was recorded, caused by several barometric 
depressions passing over England from W. to E. j the weather was 
very unsettled and showery, but no remarkably high wind was 
recorded. On the 10th and 11th the maxima temperatures were 
only 58.2 and 57.0. A gradual rise was recorded in the barometer 
from 29.521 at 3 p.m. the 13th, to 30 inches on the 18th, the wind 
being light from the N.W. and K.E. A deep depression passing 
across the British Isles from the Irish Sea to the bTorth Sea, on the 
20th and 21st, caused the barometer to fall very rapidly. The 
centre of the depression passed over the north of ISTorfolk early on 
the 21st. The lowest barometer readings recorded were, 29.233 at 
9 p.m. the 20th and 29.255 at 9 a.m. the 21st. This depression 
was attended by a very heavy rainfall on the 19th, 20th, and 21st; 
the amount recorded was 1.51 in.on the 20th,and0.89 in. on the 21st. 
I his unusual amount was exceeded in several ]:)arts of the county : 
at Ilalvergate 1.04 in. was recorded on the 20th, and 1.98 in. on the 
21st ; the smallest amount recorded in the county on these two days 
was at Ilindringham— 0.7G in. on the 20th, and 0.71 in. on the 21st. 
The excessive rainfall Avas followed by a strong ET.W. gale on the 
22nd, and a quick rise in the barometer to 30 inches on the 23rd. 
On the 21st and 22nd the maxima temperatures Avcrc only 57.5 and 
56.0. During the last Aveek the Aveatlier Avas liner and much 
milder, the thermometer registering 80.5 on the 30th. The 
barometric pressure oscillated slightly at about 30 inches ; Avind 
chiclly 8.W. and W. 
