GERMAN PLANKTON INVESTIGATIONS. 



308 



of a Single Catch. 



Under one 

 square 

 metre. 



86,851,314 



9,089,091 



12,331,494 



65,138,486 



369,054 



303 



1364 



6818 



Total in 

 catch. 



573,276 



59,994 



81,396 



429,957 



2,436 



2 



9 



45 



Species. 



Clathrocystis 



Microcystis 



Ceratium 



Melosira 



Copepocla 



larvae 



Cyclops $ 

 Leptodora 5 



Daphnia 



galeata 



etc. 



54 



or, 



10 



11 



12 



13 



14 



Total 



172 



18 



144 



129 



140 



2 



9 



45 



No. of 

 plates. 



Coeff. 



1-6 



1-3 



1-13 



1-14 



1-14 



1-14 



3,333 



714 

 3,333 



17-4 



