Common objects of the microscope
CHAPTER X
Marine Life--Sponges--Infusoria--Foraminifera--Radiolaria-- Hydroid Zoophytes--Polyzoa--Worms--Lingual Ribbons and Gills of Mollusca--Star-Fishes and Sea-Urchins--Cuttle-Fish-- Corallines--Miscellaneous Objects 154