> 
Re 
HOW THE SEEDS BEHAVE at 
How the marrow plant gets out of the seed coat. As 
the root grows out of the small end of the seed, 1t acts 
like a wedge and often splits the shell or seed coat part 

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Fic. 21. Still later stage of Fig. 18. Note root hairs in all. 
way, but not enough for the rest of the plant to escape. 
The little plant develops a curious contrivance to assist 
it in getting out. There is formed on one side of the 
