PLOW BOTTOMS 



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Figure 1 



Not e the thorough pulverization of the soil, the foot prints which show 

 the dry condition, and the absence of air spaces. 



Figure 1 shows a job of plowing almost ideal. One 

 would not expect it in soil as dry and hard as this but 

 the plow pulled 14% heavier than the plow bottom 

 which did the poorest work, or that shown in Figure 4. 



Figure 2 



This plowing is not so well pulverized as that shown in Figure I , but 

 it could be regarded as a fairly good job of plowing dry soils. 



The plowing shown in Figure 2 is not so good as that 

 Figure 1. The ground is not as finely pulverized. 

 The plow bottom pulled 4% lighter. 



in 



