FIG. 38. COCOONS, CHRYSALIS, AND MOTH OF SILKWORM. 

 One cocoon is opened to show the chrysalis. 



/V;.'A' i'y 11'. K. Johnson 



FIG. 39. STAGES IN THE DEVELOPMENT OF THE FROG. 

 1 Shows the egg ; 2 and 3 the larval, and 4 to 7 the tadpole stages ; 



8 is the adult stage. 

 (From "The Infancy of Animals," by W. P. Pycraft.) 



