OBSERVATIONAL LESSON XXXI 



PART I THE MOVEMENTS OF PLANTS (continued, 3rd Investigation) 

 PREPARATIONS FOR WORK 



Distribute the small pots containing sundew plants. 



DIRECTIONS TO THE PUPIL 



(1) What change has taken place in the appearance of the sundew 

 leaf which you fed in the last lesson ? 



PART II THE SUN (continued) 



Should an opportunity arise, make a further record as to the 

 position of the sun. Mark the window and floor accordingly. 

 (See Part I, pages 20 and 22, and Part II, Lessons XVII, XXVI 

 and XXIX.) 



Note: This observation should be repeated at short intervals 

 whenever the sun can be seen. 



PART III A GALL 

 PREPARATIONS FOR WORK 



Some fresh oak twigs bearing the common " marble gall " should be obtained 

 and distributed. It would be well to have a few extra specimens. 



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