49 
that only the latter month and December liave pos;itive values. 
The two series run as follows : — 
J'able of Decade 
means of max. 
and min. 
Year. 
I. 
1 I. 
III. 
lY. 
V. 
YI. 
VII. 
VIII 
IX. 
X. 
XI. 
XII. 
47-72 
36-9 
38-2 
40-6 
45 9 
51-.3 
57-6 
60-1 
59-6 
oo-l 
48-0 
41-6 
37-7 
47-32 
36-8 
37-9 
40-1 
45'6 
50-8 
56-0 
59-7 
59-0 
54-2 
47-5 
41-6 
38-2 j 
The following table deals with the mean temperature of the 
max. and min. for each decade, from 1841—50 to 1881 — 90 : — 
Decade. 
VYars. 
I. 
III. 
' IV. 
V. 
YJ. 
VII. 
VIII 
IX. 
X. 
XI. 
1 
Ixii. 
1841—50 
47-5 
1 
35-4 
37-4 
^ 41-0 
45*6 
5 ‘2 ■ 5 
57-9 
59-7 
58-9 
54 5 
46-6 
42-1 
1 
i 38-2 
1851-60 
46-7 
36-5 
35-5 
39-5 
44-5 
49-6 
56-3 
59 4 
59-4 
53-9 
47’9 
40-3 
37-1 
1861—70 
48-8 
37 4 
39-7 
40-1 
48-5 
52'6 
59-4 
61-0 
60-5 
56-3 
49.3 
41-4 
39-3 
1871—80 
47-9 
37-7 
39-5 
41-7 
46-3 
50-1 
o7-2 
60-6 
60-2 
55-3 
48-3 
41-2 
37-0 
1881-90 
47-7 
37-6 
39-0 
40-5 
44-7 
51-0 
57 1 
59-9 
58-8 
55-7 
47-8 
42-8 
37-1 
Eange 
2-1 
4-2 
2-2 
4-0 
3-0 
3-i 
1-6 
1-7 
2-4 
2-7 
2-5 
2-3 
Highest ) 
Decade 1 
III. 
III. 
III. 
IV. 
1 
III. 
III. 
III. 
III. 
III. 
III. 
III. 
V. 
III. 
Lowest » 
Decad(; j 
11. 
I. 
II. 
II. 
II. 1 
II. 
II. 
II. 
V. 
11. 
1. 
JI. 
11. 
50 Years 
47-7 
36-9 
38-2 i 
40-6 
45-9 
51'3 
57-6 
60-1 
59-6 
5 3 • 1 
48-0 
41-0| 
37-7 
Again we are impressed with tlie long period rec[uired before 
we really know the meteorology of the place. Two contiguous 
decades give a difference for the year of 2*"; and of over 4“ for 
a single month. In the second decade, February is actually 
the coldest month. Every month was below the mean; 
February as much as 2-7°. On the other hand, every month 
of the sixties gave an excess, April as much as 2 6", save that 
of November, which was O’13° deficient. 
It will be again of interest to take the results at the end of 
each ten years. 
t. 
Mean of max. and min, 1841—50 47-48 
1841—60 47-08 
1841—70:—47-66 
1841—80:—47-72 
1841—90 47-72 
