444 



Birge — The Crustacea of the Plankton. 



Table F. — Continued. 











Per cent, in each 3 



M. LEVEL. 





Av. 



Max. 



Min. 























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 



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 . . 

 Aug. 16-31.. 

 Sept. 1-15 .. 

 Sept. 16-30.. 



95.2 

 60.9 

 120.4 

 192.5 

 228.0 

 511.5 

 314.6 

 266.0 

 182.8 

 138.9 







55.8 

 36.5 

 29.1 

 26.5 

 50.5 

 69.3 

 31.1 

 35.2 

 19.7 

 20.4 



18.6 

 23.2 



9.1 

 18 4 

 15.8 



7.9 

 20.2 

 19.4 

 24.3 

 35.7 



17.5 

 24.0 

 17.9 

 15.4 

 7.5 

 6.3 

 14.1 

 12 3 

 11.0 

 27.4 



7.8 

 14.0 

 20.5 

 16.3 



5.4 



4.8 

 14.6 

 15.2 

 15.5 



8.0 



0.2 

 2.3 



15.1 



12.0 

 8.3 

 4.9 



10.7 

 9.0 



15.5 

 4.8 



0.0 







0.0 







8.3 







11.4 



Oct. 1-15.... 







12.5 



Oct. 16-31 . . 







6.8 



Nov. 1-15 . . 







9.0 



Nov. 16-30.. 







8.9 



Dec. 1-15 .. 







14. a 



Dec. 16-31 . . 









3.7 



