OBSERVATIONAL LESSON XXV 73 



PART III A SILKWORM (continued, 2nd Investigation) 

 PREPARATIONS FOR WORK 



Trays of silkworms should be at hand together with a supply of fresh food. 



DIRECTIONS TO THE 

 PUPIL 



(3) After having 

 noted the increase in 

 size in your cater- 

 pillars, write a brief 

 description of the way 

 in which they feed, if 

 necessary giving them 

 fresh leaves, in order 

 to tempt them to eat. 



FIGURE 172. A Silkworm Caterpillar. 



PART IV A BEE (continued, 2nd Investigation) 

 PREPARATIONS FOR WORK 



Drones and worker bees (dead) should be distributed. 



DIRECTIONS TO THE PUPIL 



(4) Take the worker bee in your hand and look more carefully at 

 it than you were able to do in the previous lesson. Treat the drone 

 in the same way and add to your descriptions written down in the 

 last lesson. 



(5) Gently press the abdomens of both bees and note the difference. 

 Make drawings as before. 



