PLAGUE CASES PER DAY
TEMPERATURE FARENHEIT.
TEMPERATURE AND PLAGUE.- April, 1903.
DATE: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28|29|30|31|
94
92
90
88
86
84
82
80
78
76
74
72
70
68
66
64
62
60
58
56
2 8 8 1 0 3 3 3 3 3
Max:
Mean
Min:
54
52
Mean temperature for the month 724°F
50
48
46
44
42
40
50
48
46
44
42
40
38
36
34
32
26
24
22
14
12
2 = ∞ ∞ = 2 * * * * N 2 = = = = =
30
28
20
18
16
10
8
6
4
O
2
0
DATE. 1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 28|24|25|26|27|28|29|30|31|
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