PLATE II 



THE CHANGE FROM A CATERPILLAR TO A CHRYSALIS 

 Fig. 



i. Larva of the Mourning-cloak Butterfly fastened to a twig, ready to 

 transform. Note the button of silk to which it is fastened. (Figure 

 enlarged.) 



2. Chrysalis just before freeing itself from its larval skin. (Figure 

 enlarged.) 



(From photographs by Professor M. V. Slingerland, colored by Mrs. Slingerland.) 



