EXPERIMENTS AND PRACTICAL WORK 67 



a corn plant; observe that the roots gather food at 

 different depths. 



Expt. 126. Nature teaches that New Plants should 

 start at a Distance from the Parent. 



(a) Examine a clump of bananas and observe that 

 the suckers grow outwards and away from the parent. 



(b) Collect six kinds of seeds scattered by wind, e.g. 

 French cotton, logwood, wild allamanda. 



(c) Collect four kinds of seeds distributed by animals: 

 burr-grass, devil's horsewhip, wild plumbago. 



(d) Collect four kinds of seeds that are water-borne, 

 e.g. coconut, antidote cacoon. 



HOW WE HELP TO FEED THE PLANTS 



(See Tropical Readers, Book II, pp. 99-101.) 



Expt. 127. General and Special Manures. Make a 

 collection of general manures (e.g. stable manure) and of 

 special manures (e.g. lime and bones). 



Expt. 128. Value of Different Kinds of Manure- 

 Try experiments in the School Garden in order to 

 show the value of 



(a) Stable manure. (d) Lime. 



(b) Cow-peas vine. (e) Wood ashes. 



(c) General weeds. 



Expt. 129. Plants that gather Nitrogen from the 

 Air. Very carefully root up plants of cow-peas, red 

 peas, shame -lady, rattle - bush, or any other legume, 

 and observe the wart-like nodules on their roots. The 

 presence of the nodules is a sign that valuable plant 

 food (viz. nitrogen) is being taken in from the air. 



Expt. 130. The Guango gathers Nitrogen from the 

 Air and enriches the Soil. Observe how much greener 

 the grass generally is under a guango tree. 



