PLAGUE CASES PER DAY
TEMPERATURE FARENHEIT.
TEMPERATURE AND PLAGUE.—January, 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
54
52
50
48
46
* * * * * * * N = * * * * 8 * * * * *
44
42
40
50
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
00
6
H
4
2
0
DATE. 1 2 3 4
Mean temperature for the month 81·7°F
5 6 7 8 9 10 11 12 13 14 15 16│17|18|1920|21|22|23|24|25|26|27|28|29|30|31|
28/29/30/31
Max:
Mean
Min: