SECTION IV. PHYSIOLOGY OF PLANTS 



INDIVIDUAL AND CLASS EXPERIMENTS 



Two classes of experiments are outlined below : namely, 

 individual experiments, which are to be performed by each 

 member of the class, and demonstration, or class, experiments, 

 which are set up by -an instructor, or by some member of the 

 class, for observation by all members of the class. Both kinds 

 of experiments should be written up and handed in as a part 

 of the regular laboratory requirement. Unless otherwise stipu- 

 lated, all experiments should be written up in the following 

 order : 



RECORDING OF EXPERIMENTS 



1. Object of the experiment. State concisely the object of 



the experiment. 



2. Method. State the method used in the experiment, drawing 



apparatus when necessary to make the method clear. 



3. Actual results secured. State concisely the actual results 



secured. Do not include theories and conclusions. 



4. Conclusions. What does the experiment seem to you to 



prove ? 



A. PHOTOSYNTHESIS 



1. The presence of starch in leaves of Pelargonium or a sim- 

 ilar plant with white areas. Individual experiment. 

 a. Compare fresh leaves of Pelargonium with leaves which 

 have been previously boiled and treated with alcohol. 

 Give the reason for the difference in color. Be able 

 to explain to an instructor. 

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