288 TIIE BUTTERFLY VIVARIUM. 



the management of an Inseet-case or Vivarium is 

 thoroughly understood, will be found not only un- 

 objectionable, but, on the contrary, of great advan- 

 tage to the whole economy of the little establish- 

 ment, by keeping up a steady and yet but slight 

 degree of moisture among the plants, and in the 

 earth in which the larvse burrow to undergo their 

 change. 



THE END. 



London : Printed by Thomas Harrild, 11, Salisbury Square, Fleet Street. 



