W. F. Harvey and A. M^'Kendrick 85 
I. The case where every organism ingested was separately counted whether 
in a clump or isolated. 
Fbequency Distribution 
Number of 
'Leucocytes 
Bacteria 
Ingested 
■NT 1 
iSormal 
Serum 
Test Serum 
0 
32 
17 
1 
36 
18 
2 
49 
33 
3 
45 
29 
k 
71 
27 
5 
31 
34 
6 
38 
25 
7 
34 
28 
8 
42 
22 
9 
25 
37 
10 
22 
27 
11 
14 
20 
1:^ 
20 
28 
13 
7 
24 
U 
13 
23 
15 
5 
14 
16 
6 
16 
17 
2 
9 
18 
5 
7 
19 
1 
9 
20 
1 
9 
21 
0 
10 
22 
1 
4 
28 

3 
2k 

6 
25 
— 
4 
26 
— 
5 
27 
3 
28 
— 
1 
0 
30 
— 
3 
31 
— 
1 
32 
0 
33 
- 
0 
3k 
1 
35 
1 
36 
0 
37 
0 
38 
0 
39 
0 
kO 
0 
41 
1 
42 
1 
Means 
5-9,6 ±-13 
9-93 ±-21 
Standard 
Deviations 
4-28 
6-94 
Opsonic 
Index 
1-67 
