OBSERVATIONAL LESSON XXI 



FIGURE 166. A Potato showing 

 young shoots. 



PART I A TUBER (continued, 3rd 

 Investigation) 



PREPARATIONS FOR WORK 



Put ready the potatoes which are grow- 

 ing in boxes and in jars over water. 



DIRECTIONS TO THE PUPIL 



(l) Make records similar to those 

 asked for in the last lesson (see 

 page 20). 



PART II THE DEVELOPMENT OF 

 A BUD 



PREPARATIONS FOR WORK 



The twigs used in the last lesson, and 

 which have been kept in water, should be 

 placed on the table. 



DIRECTIONS TO THE PUPIL 



(2) Make a sketch of the bud 

 which you chose in the last lesson. 



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