54 BUTTERFLIES 



in cabinets, one may keep them in the Riker mounts, 

 which have the advantage of being sealed so that there is 

 no chance for dust or museum pests to reach the speci- 

 mens. If one wishes to collect extensively, one will need 



Drying Box for Setting Boards. (After Riley) 



a considerable number of setting boards and it will be 

 worth while to prepare for them a special drying box like 

 that shown in the picture above. 



