1904
Curves of Rat and Human Plague.-July 31st, 1903, to August 4th, 1904.
ALL KOWLOON-EXCLUSIVE OF KOWLOON CITY, SAM SHUI PO.
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 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
WEEKS.
32
30
28
26
22
20
Percentage of 18
Infected
16
Rats on Total
14
caught.
12
10
སྲྀ རཱྀ ོམསྶརྒྱ༤༤མ ུ
24
५
G
4
1903
་
i
!
!
4
2
0
WEEKS.
|31|32|33|34|35|36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 | 2 | 3 | 4 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|
20
* 2 * N222
28
26
24
18
16
Number of
Plague Cases.
14
12
LO
8
G