The Sea and Its Living Wonders A Popular Account of the Marvels of the Deep and of the Progress of Martime Discovery from the Earliest Ages to the Present Time

CHAPTER XVIII.

Chapter 1826 wordsPublic domain

PROTOZOA.

The Foraminifera.--The Amœbæ.--Their Wonderful Simplicity of Structure.--The Polycystina.--Marine Infusoria.--Sponges. --Their Pores.--Fibres and Spiculæ.--The Common Sponge of Commerce 378