444 
Birge—The Crustacea of the Plankton. 
Table F.— Continued. 
Av. 
Max. 
Min. 
Per cent, in each 3 m. level. 
0-3 
3-6 
6-9 
9-12 
12-14 
15-18 
1896. 
Apl. 1-15.... 
14.6 
18.4 
7.6 
4.5 
9.1 
36.4 
22.7 
22.7 
4.6 
Apl. 16-30 /. 
15.2 
27.9 
7.6 
21.5 
28.6 
23.8 
11.9 
9.5 
4.7 
May 1-15/... 
124.6 
360.0 
52.1 
45.0 
32.9 
16.4 
2.5 
2.8 
0.4 
May 16-31 .. 
270.8 
427.3 
78.8 
44.9 
11.4 
16.1 
12.1 
9.8 
5.6 
June 1-15 .. 
55.6 
156.4 
6.3 
59.4 
20.3 
12.6 
5.6 
1.3 
0.5 
June 16-30.. 
211.1 
496.7 
106.8 
55.0 
27.4 
13.4 
3.4 
0.4 
0.2 
July 1-15 .. 
319.0 
783.4 
132.9 
56.4 
26.0 
13.6 
3.3 
0 6 
0.1 
July 16-31.. 
65.5 
104.6 
40.2 
45.3 
27.1 
17.7 
9.4 
0.4 
0.0 
Aug. 1-15 .. 
95.2 
55.8 
18.6 
17.5 
7.8 
0.2 
0.0 
Aug. 16-31.. 
60.9 
36.5 
23.2 
24.0 
14.0 
2.3 
0.0 
Sept. 1-15 .. 
120.4 
29.1 
9.1 
17.9 
20.5 
15.1 
8.3 
Sept. 16-30.. 
192.5 
26.5 
18.4 
15.4 
16.3 
12.0 
11.4 
Oct. 1-15.... 
228.0 
50.5 
15.8 
7.5 
5.4 
8.3 
12.5 
Oct. 16-31 .. 
511.5 
69.3 
7.9 
6.3 
4.8 
4.9 
6.8 
Nov. 1-15 .. 
314.6 
31.1 
20.2 
14.1 
14.6 
10.7 
9.0 
Nov. 16-30.. 
266.0 
35.2 
19.4 
12.3 
15.2 
9.0 
8.9 
Dec. 1-15 .. 
182.8 
19.7 
24.3 
11.0 
15.5 
15.5 
14.0 
Dec. 16-31 .. 
138.9 
. 
20.4 
35.7 
27.4 
8.0 
4.8 
3.7 
