FALL AND WINTER ANIMAL STUDY. 433 



fasten himself, head downward, to the top of the can or 

 box, bend his body like a fish-hook and hang perfectly 

 quiet (Fig. 44). 



If the children are fortunate, they may see how his skin 

 splits open along the back, and a stout, bright green body 

 appears within. At first this is distinctly ringed. Gradu- 

 ally the rings disappear, the body becomes smaller, several 

 beautiful dots appear (" the green house with the gold 

 nails," Mrs. Ballard calls it), and we have the chrysalis. 



Fig. 44. Danais Caterpillar. Fig. 45. Danais Chrysalis. 



Tie a thread tightly around the black stem by which the 

 chrysalis is suspended, and hang in the school where it 

 touches nothing, and can be seen but not touched. After 

 ten or fifteen days the boys and girls may see the chrys- 

 alis open, and may discover coming from it a large butter- 

 fly, with black body and brown wings, the latter with black 

 border and veins, and with two rows of white spots near 

 the outer ends. 



Notice how the case splits, how the butterfly comes out, 

 how small the wings are at first, and how they increase in 

 size, how the form and size of the body change as the 

 wings enlarge. 



Isn't it a wonderful story ? Is there a lesson in it ? 



