FINDING AND MAKING SOIL 209 



bon dioxides, they are alienating them from oxygen 

 and ozone, which are let loose into the air. In the 

 process of breathing all animals, including man, 

 throw off poisonous gases which the plants immedi- 

 ately take up and weave into foliage and fruit. We 

 need every particle of the ozone that in turn is given 

 off for us. 



House plants, if healthy, are during the winter a 

 sort of family doctor, using up a good share of the 

 poison that is breathed into the atmosphere by the 

 occupants of the house and weaving it over into some- 

 thing beautiful. Each little pot of geraniums gives 

 us a quota of ozone in return for what it selects. 



A good deal more important is it that the streets 

 of the village be well lined with trees and that these 

 trees be of a sort that can take up the pools and 

 puddles and street drainage, working it over into 

 shade-giving foliage and fruit. Those are ignorant 

 mischief-makers who either cut or mutilate street 

 trees. Be sure also that around your house there is 

 enough foliage, not for shade only but for purifying 

 the air. Vines growing all over the house do no 

 harm whatever, but they do a vast amount of direct 

 benefit in the way of giving you wholesome air while 

 using up the poisonous. 



The difference between sandy and clay soils is 

 mainly that with the first we must establish a first 

 rate root system, and after that we must supply a 

 larger amount of mulch. Turn under your legumes, 

 as well as rye or any other succulent stuff. Learn to 



