ACTA SOCIETATIS SCIENTIARUM FENNIC/E 



TOM. XLVIII. N:o 5. 



MICROPLANKTON 



FROM THE FINNI8H WATBRS DURING THE 

 MONTH OF MAY 1912 



BY 



CAROLINE LEEGAARD 







HELSINGFORS 1920 

 PBINTED BT THE FINNISH LITEEABY SOCIETY 



