i86 
This gives the amount of moisture contained in the atmosphere 
in the form of invisible vapour, and is of. the greatest importance to 
vegetation. 
Dew, with its refreshing influence, is a frequent phenomenon in 
our latitude. It has been observed at Chester the following 
number of times during the past nine years 
March ... 
••• 59 
1 J une ••• 
... 38 
September .. 
• 75 
April ... 
... 71 
July 
43 
October 
. 89 
May 
••• 57 
1 August ... 
... 89 
November .. 
• 67 
And last, but by no means least as important factors in plant 
life calling for mention even in such a mere outline sketch as this, 
are the twin elements of 
III.— BRIGHT SUNSHINE AND CLOUDINESS. 
BRIGHT SUNSHINE. 
SOUTHPORT 
LIVERPOOL. 
| 
CHESTER. 
10 Years, 
6 Years, 
1892-1901. 
1896-1901. 
% of greatest 
% of greatest 
possible amount. 
possible amount. 
January 
17-2 
16*9 
February 
25-0 
26 0 
March 
38*5 
27.2 
April 
45’5 
. 
n 
41-5 
May 
50-0 
<u 
44-1 
June 
46-1 
5 
41-8 
July 
44- 1 
CD 
44'9 
August 
407 
C 
O 
40*2 
September 
38*5 
£ 
3 6 ‘3 
October 
30-8 
3 °*° 
November 
16.9 
H *9 
December 
11.8 
* 3*4 
A nnual percentage . . . 
1 33 ' 8 
- 
327 
It must be borne in mind that these percentages are not of 
sunshine but of bright sunshine, such as the unclouded sun gives 
half-an-hour after rising until half-an-hour before setting. During 
the remaining part of the percentages the sun is obscured more 
or less by haze, mist, fog, or cloud. 
