H. W. Acton and W. F. Harvey 
289 
an elevation of 6000 feet for only 18 days would seem to be one of a permanent 
character, as judged from our observations on residents. 
TABLE VI. 
Showing the Frequency Distribution of Number of 
Erythrocytes in 52 Kasauli Residents. 
Number of 
Number of 
Erythrocytes 
Frequency 
Erythrocytes 
Frequency 
in 100,000's 
in 100,000's 
52 
2 
70 
4 
53 
2 
71 
1 
54 
1 
72 
0 
55 
1 
73 
0 
56 
1 
0 
57 
4 
75 
58 
4 
76 
59 
3 
77 
60 
3 
78 
61 
62 
3 
1 
79 
80 
63 
0 
81 
64 
2 
82 
0 
65 
4 
83 
0 
66 
3 
84 
0 
67 
0 
85 
1 
68 
1 
69 
4 
Total 
52 
During the stay at Kasauli 9 out of the 127 cases developed typical malarial 
fever and in nearly all of these cases there was definite evidence of blood de- 
struction, especially when the blood count was taken a few days after the fever. 
As the point is an interesting one in relation to malarial fever, we give the 
figures in Table VII. 
TABLE VII. 
First Count 
Date of 
development 
after arrival, 
in days 
Parasites 
Second 
Count 
Loss or gain 
on 
First Count 
6,640,000 
1 
B. T* 
6,688,000 
+ 48,000 
3,952,000 
1 
B. T. 
5,939,000 
+ 1,987,000 
5,440,000 
8 
B. T. 
5,200,000 
- 240,000 
5,172,000 
6 
B. T. 
5,104,000 
- 68,000 
5,232,000 
16 
B. T. 
2,784,000 
- 2,448,000 
3,984,000 
5 
M. T.t 
4,960,000 
+ 976,000 
5,952,000 
17 
B. T. 
3,216,000 
-2,736,000 
5,024,000 
10 
B. T. 
4,160,000 
- 864,000 
5,392,000 
6 
Nil 
5,280,000 
- 112,000 
* B. T. = Benign Tertian. 
Biometrika vin 
t M. T. = Malignant Tertian. 
37 
