ACTA SOCIETATIS SCIENTIARUM FENNIC/E 



TOM. XLVIII. N:o 5. 



MICROPLANKTON 



FROM THE FINNISH WATERS DURING THE 

 MONTH OF MAY 1912 



BY 



CAROLINE LEEGAARD 



HELSINGFORS 1920 

 PRINTED RY THE FINNISH LITEKATCY SOCIETY 



