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. 
