382 ANNUAL OF SCIENTIFIC DISCOVERY. 



phreys has himself tried the experiment, or seen it tried by others. An orna- 

 mental glass case, filled with plants, on the leaves of which should appear 

 beautiful caterpillars of various colors, and metallic beetles glittering in the 

 sun, while around the flowers should flit moths and butterflies, and dragon- 

 flies, with their gorgeously-painted or delicately-reticulated wings, would cer- 

 tainly form a very attractive object. Whether such a vivarium could be 

 maintained in good working order or not, is, however, in our opinion, a 

 somewhat doubtful matter, 



