197 
1867. 
Amounts 
of 
Ozone 
found. 
Mean 
Horizontal 
Movement of 
the Air 
in Miles. 
Mean Amount 
of Rain-fall 
in Inches. 
Percentages of the General Direction of 
the Wind. 
N. 
E. 
s. 
w. 
0 
80 
•067 
31 
21 
13 
35 
1 
117 
•072 
39 
24 
9 
28 
2 
142 
•141 
37 
21 
11 
31 
3 
155 
•066 
29 
29 
13 
29 
4 
220 
•072 
25 
19 
17 
39 
5 
201 
"144 
22 
15 
24 
39 
6 
207 
•255 
27 
9 
27 
37 
7 
243 
•154 
29 
8 
9 
54 
8 
214 
•082 
16 
11 
12 
61 
9 
312 
•142 
20 
— 
20 
60 
10+ 
340 
•252 
16 
10 
30 
44 
1868. 
0 
91 
•068 
28 
21 
19 
32 
1 
115 
•047 
22 
28 
22 
28 
2 
105 
•080 
24 
20 
28 
28 
3 
106 
•076 
23 
10 
26 
41 
4 
143 
•066 
19 
21 
21 
39 
5 
166 
•074 
16 
11 
25 
48 
6 
173 
•085 
19 
13 
24 
44 
7 
163 
•123 
29 
13 . 
29 
29 
8 
207 
•168 
8 
8 
34 
50 
9 
230 
•102 
9 
9 
36 
46 
10+ 
304 
•254 
13 
6 
24 
57 
Aveeages or the above 
Two Yeaes. 
N. & E. 
s. & w. 
0 
85 
•067 
26 
24 
1 
116 
•059 
28 
22 
2 
123 
•110 
25 
25 
3 
130 
•071 
22 
28 
4 
181 
•069 
21 
29 
5 
183 
•109 
16 
34 
6 
190 
•170 
17 
33 
7 
203 
•138 
19 
31 
8 
210 
•125 
10 
40 
9 
271 
•122 
9 
41 
10+ 
304 
•254 
10 
40 
The first two tables show most conclusively that the 
amount of ozone development generally increased as the 
amount of wind and rain-fall increased. 
In the last of these tables I have given the mean of the 
horizontal movement of the air and rain-fall for the two 
years, and in that table the same rule holds good. In the 
same table I have reduced the percentages of the winds to 
