136 NATURE STUDY LESSONS FOR PRIMARY GRADES 



a row of small white dots interspersed with eight 

 larger dots. Just above the larger end of the chrysalis, 

 eight yellow dots, occurring at regular intervals, began 

 to show. At the top there were six black dots, ex- 

 tending, in twos, toward the front from the point 

 of attachment. The next morning all the white on 

 the chrysalis was changed to gold, and a gold dot 

 appeared on each side toward the front. 



We had not seen the change from the caterpillar 

 to the chrysalis. This was a disappointment, but 

 later we saw what we had so regretted missing. This 

 caterpillar swung off at six o'clock in the evening. 

 I was up at half-past four o'clock in the morning. 

 It was gnawing at its feet industriously. Occasion- 

 ally it threw its head back. There was a great con- 

 traction and relaxation of the muscles between the 

 black and white rings, occurring every second or so 

 at the last. At the end these movements became 

 very violent, the skin burst open on the back, near its 

 head, and was worked backward and off, where it 

 finally fell to the bottom of the glass. The chrysalis 

 swung around, first a few turns to the right, then a 

 few turns to the left, thus forming the strong, twisted 

 thread by which it hung. It became a chrysalis at 

 half-past five o'clock in the morning. 



