Sessional_Paper_1905 — Page 468

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