PLANTS THAT BUILD AIRSHIPS 117 



survivors will settle, take root and start plant fam- 

 ilies of their own. 



There is a strong humanness about this seed-emi- 

 gration. It is the eternally repeated story of the 

 mother educating, training, and preparing her chil- 

 dren to go out into the world ; the setting out, with 

 limitless possibilities ahead ; the destruction of some, 

 the degeneration of others; and the success and 

 achievement of those few who reach their goal. 



