THE MILKWEED CATERPILLAR I3I 



The children now have the whole life of the 

 cabbage butterfly learned from their own obser- 

 vation. They will never forget it. It helps them 

 to interpret the life of all caterpillars. 



They will gather, feed, and watch other cater- 

 pillars. Not all of them will change into butter- 

 flies — some will become moths; and by comparison 

 they will find these differences between butterflies 

 and moths : — 



(a) A butterfly flies in the daytime, a moth by 

 night. 



(Z>) A butterfly holds its wings erect when at 

 rest. The wings of a moth lie flat, or slant like 

 the roof of a house. 



(c) A butterfly has knobbed feelers. A moth's 

 feelers are not knobbed. 



XIX 



THE MILKWEED CATERPILLAR 



HATCHING OF THE EGG 



[What the older boys and girls may see if they look 

 closely.] 



On the afternoon of August 12 we found an 

 egg of the milkweed butterfly on the center of 



