VI 



Contents. 



CHAPTER PAGE 



XIV. MAMMALIA (concluded} 146 



Rabbit, Nervous System, Muscles, Eye, Larynx, Skeleton. 



XV. PROTOZOA : 163 



Amoeba, Paraniecmm, Vorticella. 



XVI. PORIFERA 168 



Commercial Sponge. 



XVII. COZLENTERATA . '171 



Hydra, Sea Anemone, Corals, Sea Fan. 



XVIII. ECHINODERMATA 177 



Starfish, Sea Urchin. 

 XIX. TROCHELMINTHES 19 



INDEX ..... 



