( V ) 
from the N.E., and was strong at both the begiuning and towards the end 
of the month. Dense fogs prevailed on the 20th and 21st. 
The month of December was fine and rather cold. The temperature of 
the air was a little above the average till the 4th, and was below from the 
oth. The atmospheric pressure was above the average till the 5th, and from 
the 29th. The rain was generally less than the average. The wind was 
mostly from the X.W. It was a fine winter month. 
About London the mean daily temperature of the air was below its 
average on nearh^ every day throughout October and till the 25th day of 
November. The mean daily deficiency for these 56 days was 5°-4 ; from 
November 26 to December 4 it was above the average, the mean daily 
excess was 1°'4 ; from December 5 to the 31st was generally below the 
average, mean daily deficiency was 3°-8. 
The rnmfall recorded at 33 stations of observation ranged from 4'00 
inches at Nottingham, 4 21 inches at Cambridge, and 4 60 inches at Card- 
ington, to 12-84 inches at Plymouth, 12'89 inches at Truro, and 14'12 inches 
at Guernsey. Rain was measured at Greenwich on 11 days in October", 
20 in November, and 16 in December, or on 47 of the 92 days in the 
quarter. 
Wind Observations. — The average duration of the difl^erent directions 
of the wind at eight points of the compass in e.ach month of 1887, at the 
Koyal Observatory, Greenwich, was as follows: — 
Direction of Wind 
N.w. 
N. 
I«.E. 
E. 
S.E. 
s. 
s.w. 
1 
I 
days 
days 
d.avs 
days 
days 
d-ivs 
days 
days 
January . 
2-bo 
350 
3-25 
1-bo 
3-25 
4-50 
9-75 
3-75 
February . 
2-50 
300 
400 
200 
1-50 
300 
900 
300 
March 
3-00 
400 
400 
300 
2-50 
300 
800 
3-50 
April . . 
2-25 
4-2o 
6-25 
3o0 
2-25 
2-50 
6-25 
2-75 
May . . 
1-50 
4-75 
7-50 
2-25 
1-75 
2-75 
8-25 
2-25 
June . . 
2-50 
3-50 
3-75 
2-25 
1-75 
2-25 
1000 
4-00 
July . . 
300 
400 
3o0 
200 
1-50 
300 
1000 
4-00 
August 
3 00 
3-00 
300 
1.50 
1-60 
300 
12-00 
400 
September 
400 
6-00 
200 
2 00 
300 
800 
3 00 
2-00 
October . 
2-50 
3-50 
300 
1-50 
200 
400 
1000 
4-50 
November 
2-50 
4-25 
4 00 
225 
2-2.-, 
4 00 
8-.50 
2-25 
December 
2-50 
3-00 
2-50 
200 
2-00 
3-50 
11-00 
4-25 
Totals » 
for 1887 i 
31-25 
46-75 
46-75 
25-25 
25-25 
43-50 
105-75 
40-25 
The following Table (I.) gives the INIeteorological Observations recorded 
at the lloyal Observatory, Greenwich, for each Uionth of the year 1887: — 
