OBSERVATIONAL LESSON XXIX 

 PART I THE MOVEMENTS OF PLANTS 



PREPARATIONS FOR WORK 



Pots containing plants which produce tendrils, for instance, peas, bryony, and 

 others of which the leaf stalks attach themselves to supports, such as canary creeper, 

 should be on the table. Arrangements should also be made for the placing of thin 

 rods, about a quarter of an inch in diameter, near young tendrils or leaf stalks so that 

 the time which these take, to obtain a hold, can be noted. 



DIRECTIONS TO THE PUPIL 



(1) Take one of the small rods and push it into the earth of the 

 pot, so that it comes into contact with the slightly curled tip of one 

 of the tendrils growing upon one of the plants of pea or bryony. 



Put your plant on one side for subsequent examination, after 

 having noted in your book the time at which you placed the stick 

 in position, and having made a sketch of the tendril. 



(2) Treat the leaf stalk of canary creeper in the same way, and 

 having made your drawing, examine the one already dealt with. 



If there is little or no result, proceed to the other work outlined 

 below, and at the end of the lesson make a second sketch of the 

 tendril. 



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