124 
solar spots, as observed by Schwabe and others, was above 
the average in the five years 1858-62, and below the average 
in the remaining six years 1854-57 and 1863-64. I there- 
fore divided the series of rainfall results into two corre- 
sponding series, and, taking the means of the amounts under 
each wind, I obtained the following numbers : 
Mean Annual Mean Annual 
Amount of Rainfall, Amount of Rainfall, 
N 
1858-62. 
Inches. 
0-979 ... 
1851-7 and 1863-4. ' 
Inches. 
.. 1-257 
Difference. 
Inches. 
-0-278 
N.W 
0-749 ... 
.. 2-230 
-1-481 
W, 
3-798 ... 
.. 3-028 
+ 0-770 
s.w 
3-059 ... 
.. 2-955 
+ 0-104 
s 
1-994 ... 
... 1-757 
+ 0-237 
S.E 
2-330 ... 
.. 2-198 
+ 0-132 
E 
1-281 ... 
.. 0-830 
+ 0-451 
N.E 
0-681 ... 
... 1-613 
-0-932 
C 
0-605 ... 
.. 1-047 
-0-442 
The differences 
in the last 
column show that the mean 
amounts of rainfall under west, south-west, south, south- 
east, and east winds are greater in years of maximum solar 
spot frequency than in years of minimum, while the amounts 
under north-east, north, and north-west winds, and calms, 
are less. Comparing, then, the total amounts which fell under 
west, south-west, south, south-east, and east winds in each 
year with those which fell under north-east, north, and north- 
west winds, and in calms, we have the following results : — 
1854 ... 
Total Amounts of 
Rainfall under 
W., S.W.,S.,S.K., 
and E. winds. 
Inches. 
8-552 .... 
Total Amounts of 
Rainfall under 
N.E., N., & N.W., 
winds and calms. 
Inches. 
4-026 
Ratios. 
. 2-03 
Corrected 
Ratios. 
Groups 
of 
Solar 
Spots. 
1855 ... 
8-697 .... 
7-030 
. 1-23 
... 2-00 ... 
79 
1856 ... 
10-977 .... 
3-979 
. 2-75 
... 1-67 ... 
34 
1857 ... 
6-501 .... 
6-245 
. 1-04 
... 2-34 ... 
98 
1858 ... 
8-918 .... 
2-735 .... 
. 3-22 
... 3-71 ... 
188 
1859 ... 
14-950 .... 
2-180 
. 6-86 
... 4-49 ... 
205 
1860 ... 
12-121 .... 
3-566 
. 3-39 
... 5-00 ... 
211 
1861 ... 
15-868 .... 
3-294 
. 4-7G 
... 3 77 ... 
204 
1862 ... 
10-457 .... 
3-292 
. 3-17 
... 3-71 ... 
160 
1863 «... 
11-517 .... 
3-609 .... 
. 3-19 
... 2-64 ... 
124 
1864 ... 
18-368 .... 
11-816 .... 
. 1-55 
