December.
January.
February.
Marcb.
April.
May.
June.
July.
1897.
Angust.
September.
November. October.
December.
Jannnry.
February.
March.
April.
May.
June.
July.
1898.
August.
September.
CHART showing the Monthly Percentage of Cases of Malaria among the European Troops stationed in Hongkong, during; five years-September, 1896, to September, 1901; and the Monthly Percentage of Anopheles among Mosquitoes examined during thirteen months-September, 1900, to September, 1901.
Malaria Curve
Black Line.
October.
November.
December.
January.
February.
March.
April.
May.
June.
1899.
July.
August,
September.
October.
1900.
November.
December.
January.
February.
March.
April,
May.
June.
July.
August.
September.
October.
November.
December.
January.
February.
March.
April.
May.
June.
July.
August.
0
10
9
8
7
往
5
11
12
13
1901.
September.
November. October.
December.
24
23
22
20
16
* 2 2 2 8 N 39 * * 1 13 =
27
26
21
Per
cent.
8
7
6
5
4
3
2
6.
9
26
25
24
28
22
21
20
19
18
47
16
15
14
13
12
11
10
27