Polypes, 



G-eneral remarks on (Polypes tfheir Organization 

 and (Polypidom -JVaturalists who have written upon 

 (Polypes Hydra fusca and H. viridis Reproduc- 

 tion of (Polypes (Polypes for the Aquarium Coral- 

 Hum nobilis, and general observations on Coral Its 

 (Polypidom (Practical details concerning Coral 

 Coralliculture Coral Fishery Uses of Coral Isis 

 hippuris, or Articulated Coral ^Tubipora musica 

 (The genus J\ adrepora Reefs and Coral Islands 

 Formation of Reefs J\A 'adrepora, muricata Its 

 Chemical Composition How it derives its Lime 

 Its uses. 



