FROM ORDINARY DAYS OF THE ELEVEN YEARS 1890 TO 1900. 
271 
Table L. —-Horizontal Force Ranges (Unit ly). Number of Occurrences. 
Year. 
From 0 
To 12-5 
12-5 
25 
25 
37-5 
37-5 
50 
50 
62-5 
62-5 
75 
75 
100 
100 
125 
125 
150 
150 
175 
175 
200 
200 
250 
250 
500 
500 
1890 
0 
40 
99 
111 
66 
28 
14 
5 
2 
0 
0 
0 
0 
0 
1891 
1 
23 
49 
68 
82 
52 
59 
14 
ii 
3 
1- 
1 
1 
0 
1892 
0 
4 
33 
66 
61 
60 
68 
29 
16 
4 
3 
9 
10 
3 
1893 
0 
10 
32 
50 
8-1 
68 
78 
25 
13 
5 
0 
3 
0 
0 
1894 
0 
8 
44 
38 
59 
71 
79 
32 
12 
5 
4 
2 
9 
2 
1895 
0 
9 
38 
57 
77 
66 
68 
30 
10 
8 
2 
0 
0 
0 
1896 
2 
26 
42 
68 
72 
51 
60 
26 
11 
3 
3 
0 
2 
0 
1897 
1 
34 
69 
99 
78 
39 
27 
9 
6 
2 
1 
0 
0 
0 
1898 
3 
46 
58 
80 
67 
46 
41 
17 
2 
i 
1 
1 
0 
9 
1899 
4 
45 
83 
79 
69 
37 
33 
9 
5 
i 
0 
0 
0 
0 
1900 
15 
73 
117 
106 
32 
11 
7 
1 
1 
i 
0 
1 
0 
0 
Table LI.—Horizontal Force Ranges (Unit ly). Number of Occurrences in 
Eleven Years. 
Month. Xo° m 
0 
12-5 
12 • 5 
25 
25 
37-5 
37-5 
50 
50 
62-5 
62-5 
75 
75 
100 
100 
125 
125 
150 
150 
175 
175 
200 
200 
250 
250 
500 
500 
January . . 
5 
73 
97 
58 
32 
32 
22 
12 
7 
0 
1 
1 
1 
0 
February . . 
1 
45 
73 
48 
49 
30 
30 
14 
11 
1 
2 
1 
3 
2 : 
March ... 
0 
12 
71 
71 
68 
32 
38 
21 
15 
2 
2 
3 
5 
i 
April .... 
0 
2 
29 
73 
64 
66 
62 
19 
4 
6 
2 
2 
1 
0 
May .... 
0 
1 
36 
64 
80 
64 
60 
18 
6 
4 
2 
2 
4 
0 
June .... 
0 
0 
29 
75 
78 
58 
55 
14 
13 
4 
i 
2 
1 
0 
July .... 
0 
2 
38 
69 
78 
49 
61 
24 
9 
3 
i 
3 
3 
1 
August . . . 
0 
5 
23 
77 
94 
56 
53 
21 
4 
3 
i 
2 
0 
2 
September . 
0 
5 
32 
76 
79 
52 
55 
16 
7 
3 
i 
0 
3 
1 
October. . . 
0 
15 
61 
79 
46 
48 
66 
21 
1 
2 
2 
0 
0 
0 
November . 
3 
67 
78 
78 
47 
18 
17 
9 
9 
3 
0 
0 
1 
0 
December . 
17 
91 
97 
54 
29 
24 
15 
8 
3 
2 
0 
1 
0 
0 
Table LII. —-Vertical Force Ranges (Unit ly). Number of Occurrences. 
Month. 
From 0 
To 12-5 
12-5 
25 
25 
37-5 
37-5 
50 
50 
62-5 
62-5 
75 
75 
100 
100 
125 
125 
150 
150 
175 
175 
200 
200 
250 
250 
500 
500 
1890 
71 
164 
111 
13 
5 
1 
0 
0 
0 
0 
0 
0 
0 
0 
1891 
26 
110 
143 
39 
22 
7 
7 
5 
4 
1 
0 
0 
1 
0 
1892 
13 
96 
126 
58 
17 
12 
15 
8 
3 
3 
2 
o 
D 
9 
1 
1893 
6 
106 
126 
75 
23 
9 
13 
3 
1 
1 
i 
1 
0 
0 
1894 
15 
96 
134 
52 
26 
12 
10 
3 
9 
1 
9 
o 
O 
7 
9 
1895 
13 
101 
136 
53 
31 
12 
13 
5 
l 
0 
0 
0 
0 
0 
1896 
18 
127 
127 
40 
21 
10 
13 
7 
i 
0 
l 
1 
0 
0 
1897 
51 
144 
119 
26 
13 
2 
7 
0 
2 
1 
0 
0 
0 
0 
1898 
37 
132 
133 
40 
13 
3 
3 
1 
0 
0 
0 
0 
9 
j-i 
1 
1899 
45 
170 
108 
27 
5 
3 
6 
0 
1 
0 
0 
0 
0 
0 
1900 
61 
199 
94 
6 
3 
0 
0 
0 
0 
1 
0 
0 
1 
0 
