OBSERVATIONAL LESSON XIX 



PART I A SEEDLING (continued, kill Investigation] 

 PREPARATIONS FOR WORK 



Put ready the pots containing the 

 dwarf bean seedlings. 



DIRECTIONS TO THE PUPIL 

 (1) Carefully examine the leaf 

 which you marked in the 1st 

 lesson. Make diagrams of it, 

 showing its size to-day and a 

 week ago. If time allow, make 

 an outline drawing of the whole 

 plant, or if not, draw a line to 

 indicate its height, making a 

 note of the increase during the 

 week. 



PART II A TUBER 

 (continued, 2nd Investigation) 



PREPARATIONS FOR WORK 



The growing potatoes will be needed. 



DIRECTIONS TO THE PUPIL 

 (2) Record by means of notes and sketches any changes that have 

 taken place or signs of growth that have manifested themselves. 



FIGURE 155. A Potato tuber showing 

 "sprouts." 



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