148 CURIOUS HOMES AND THEIR TENANTS. 



consisted of a circular door at the bottom. Tlirongh 

 this door the inmates were to escape when the proper 

 day came for them to do so. Before this, however, 

 and waiting for their time, they hung themselves up 

 on the wall by their tails and entered the pupse state, 

 which, you know, caterpillars do by changing their 

 skins and becoming pupae or chrysalids. 



The little door was too small to allow the but- 

 tei'flies to escape after their wings had expanded 

 and dried, so that they had to be careful to get 

 out while they were yet moist and flexible. Before 

 this happened, however, a gentleman saw the nest, 

 captured it, and carried it away with him to England, 

 where it now is in the museum at Oxford, together 

 with specimens of the sort of butterfly that builds 

 such nests. 



Butterfly tliat niLmics a leaf. 



