442 
Birge—The Crustacea of the Plankton. 
Table E.— Continued. 
Av. 
Max. 
Min. 
Per cent, in each 3 m. level. 
0-3. 
3-6. 
6-9. 
9-12. 
12-15. 
15-18. 
June 1-15 .. 
189.5 
297.6 
139.2 
30.0 
20.0 
11.1 
9.8 
8.3 
20.5 
June 16-30 .. 
358.7 
716.1 
223.2 
42.6 
23.3 
12.8 
9.6 
4.8 
6.8 
July 1-15... 
371.0 
442.0 
341.5 
37.0 
29.0 
14.6 
9.0 
9.3 
1.0 
July 16-31... 
317.5 
412.1 
138.0 
49.5 
30.0 
18.7 
1.4 
0.2 
0.1 
Aug. 1-15 .. 
326.8 
48.8 
25.2 
20.8 
4.8 
0.3 
0.0 
Aug. 16-31 .. 
209.0 
30.0 
32.7 
10.8 
24.0 
2.0 
0.5 
Sept. 1-15.. 
157.1 
33.8 
22.5 
15.8 
12.6 
9.9 
5.3 
Sept. 16-30.. 
228.6 
29.2 
13.7 
14.4 
18.4 
14.2 
10.1 
Oct. 1-15... 
364.8 
18.3 
22.6 
18.7 
14.3 
14.3 
11.7 
Oct. 16-31... 
469.5 
27.7 
20.8 
15.5 
12.6 
12.2 
11.2 
Nov. 1-15 .. 
267.7 
18.1 
19.8 
12.2 
19.2 
14.2 
16.5 
Nov. 16-30 .. 
173.9 
25.1 
13.6 
12.0 
15.3 
12.4 
11.6 
Dec. 1-15... 
115.5 
14 3 
29.2 
10.7 
16.0 
12.6 
17.1 
Dec. 16-31... 
93.1 
6.5 
20.8 
19.8 
13.0 
17.0 
22.9 
