THE PET-HOUSE. 217 



the dead coral rock, or the agile squid as it 

 darted here and there, the gar-fish that never or 

 rarely left the surface, and the curious fishing- 

 frog, or Lopliius, with its fishing-rod, that as 

 closely clung to the bottom. 



The doctor had placed specimens of all kinds 



Alamdrina eonvexa. Tortugas, Florida, growth of which was watched by 

 Dr. J. B. Holder. 



of coral found on the reef in the inclosure, 

 watching them from day to day to determine 

 the rapidity of their growth, and many facts 



new to science were discovered. He foiind that 



17 



