Incluye índice CONTENIDO: The structure of amoeba. -- The structure of paramoecium. -- The structure of vorticella. -- The multiplication of vorticella. -- Calcareous sponge. -- The structure and growth of the asexual form of a campanularian hydroid. -- The structure of an ocellate hydro-medusa. -- The medusa stage of a campanularian hydroid. -- The structure of a starfish: the hard parts. -- The structure of a starfish: internal anatomy. -- The microscopic structure of the starfish. -- The hard parts of a sea-urchin. -- The internal structure of a sea-urchin. -- The embryology and metamorphosis of echinoderms. -- The general anatomy of the earthworm. -- The microscopic structure of the earthworm. -- The general anatomy of the leech. -- The hard parts of the common crab. -- The hard parts of the crayfish or lobster. -- The general anatomy of a crab. -- The metamorphosis of a crab. -- The anatomy and metamorphosis of cyclops. -- The hard parts of a grasshopper. -- The internal anatomy of a grasshopper. -- The general anatomy of anodonta. -- Examination of transverse sections of unio or anodonta. -- The lamellibranchiate gill. -- The development of lamellibranchs. -- The general anatomy of the squid. -- The development of the squid.
