101 
above that the maximum range cannot take place at all 
stations in the same phase of the moon. 
Estimations of the amount of cloud are made and recorded 
at 9 a.m., 1 p.m., and 9 
p.m. daily. I have therefore tabu- 
lated the amounts of cloud at the times of full and new 
moon during the six winter months on the plan adopted 
with the daily range of temperature, and have obtained the 
following mean results : 
1871-2 
Mean Amount of Clouds at 9 a.m. 
on days of 
Full Moon. New Moon, 
7-7 7-1 
1872-3 
6*3 7-4 
1873-4 
7-2 7-5 
1874-5 
6-9 7-6 
1875-6 
7-9 7-5 
1876-7 
7-7 8-4 
1877-8 
8-0 7*9 
Means 
7-38 7-63 
Mean Amount of Cloud at 1 p.m, 
on days of 
1871-2 
Full Moon. 
7*2 
New Moon. 
6-0 
1872-3 
6-5 
6-3 
1873-4 
6-9 
7-9 
1874-5 
... 6 *6 
7-0 
1875-6 
7-7 
7-2 
1876-7 
7*9 
8-3 
1877-8 
7-5 
7-3 
Means 
7-19 
7-14 
1871-2 
Mean Amount of Cloud at 9 p.m. 
on days of 
Full Moon. New Moon. 
6-3 5-9 
1872-3 
6*2 
5-9 
1873-4 
6-2 
5-4 
1874-5 
7-1 
4-8 
1875-6 
6-6 
5*7 
1876-7 
8-0 
6 6 
1877-8 
7-5 
7*1 
Means 
6-84 
5-91 
