88 



INSECT ARCHITECTURE. 



which penetrate through the leaves never rest upon 

 its hard and poHshed surface. A small opening for 

 the entrance of the insects terminates its funnel- 

 shaped bottom. It is impossible to unite more per- 

 fectly the qualities of lightness and strength. 



Nest of the Card-muTccrWasp, rvlth part removed to shero the aiTcmc'cment 

 of the Cells. 



