PLAQUE CASES PER DAY
RELATIVE HUMIDITY OF ATMOSPHERE PER CENT
DATE. 1
100
98
96
94
92
90
88
86
84
82
80
78
74
72
70
ུ ཝཿསྨྱ ླ*ཨྰཿཤྩཎཱུ e t ༩ e gསྒྱུཉྫུདྡྷནྣཱཤྩ་རྒྱལུསྶམ ྷ
68
66
64
62
60
58
56
54
52
50
48
46
44
42
40
50
48
46
44
42
40
38
36
34
32
80
28
26
24
22
20
18
16
14
12
10
8
6
4
2
DATE. 1
3
LO
5
6 7
PLAGUE AND ATMOSPHERIC HUMIDITY.- June, 1903,
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|
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22|28|24|25|26|27:28|29 30 31: