THE introductory report (No. 1) to the Carlsberg Foundation's Oceanographical Expedition contains an article in memory of its late leader, Prof. Johannes Schmidt, by Martin Knudsen, with portrait ...

IN describing the specific characteristics of Ceratium furca, one of the Peridiniæ or Dinoflagellates, Saville Kent in his “Manual of the Infusoria” gives the habitat as salt-water ...