Appendix—Statistical Tables. 
447 
Table I.— Diaphanosoma . Average , maximum , and minimum num¬ 
bers. Percentile vertical distribution. 
Ay. 
Max. 
Min. 
Per cert, in each 3 m. level. 
0-3. 
3-6. 
6-9. 
9-12. 
12-15. 
15-18. 
1894. 
Sept. 16-30.. 
19.6 
68.4 
6.9 
50.0 
29.4 
8.1 
7.9 
4.6 
0.0 
Oct. 1-15.... 
5.2 
7.8 
0.7 
34.1 
24.4 
20.7 
4.9 
11.0 
4.9 
Oct. 16-31... 
3.0 
5.4 
0.0 
0.0 
25.0 
43.8 
0.0 
25.0 
6.2 
1895. 
Aug. 1-15... 
31.5 
47.0 
25.1 
52.9 
29.6 
13.5 
3.8 
0.2 
0.0 
Aug. 16-31.. 
32.2 
56.1 
17.8 
39.3 
28.4 
24.6 
6.8 
0.6 
0.3 
Sept. 1-15... 
27.1 
63.6 
15.2 
36.6 
35.7 
19.7 
6.0 
1.7 
0.2 
Sept. 16-30.. 
17.2 
37.3 
2.9 
41.7 
19.5 
14.0 
17.7 
7.1 
0.0 
Oct. 1-16.... 
3.4 
10.8 
1.2 
11.3 
0.0 
34.0 
32.1 
22.6 
0.0 
1896. 
Aug. 1-16... 
8.9 
73.5 
24.1 
1.8 
0.6 
0.0 
0.0 
Aug. 16-31.. 
147.2 
45.1 
28.3 
19.3 
6.1 
1.0 
0.1 
Sept. 1-15... 
108.3 
30.7 
24.0 
21.0 
12.4 
10.7 
0.1 
Sept. 16-30.. 
32.9 
31.2 
20.2 
11.5 
13.3 
11.5 
12.3 
Oct. 1-15.... 
0.4 
