COST OF PRODUCTION. 207 



To illustrate this, let us take the same acre, and 

 superadd the following treatment: Let the ground be 

 cross-ploughed and harrowed before planting, and let 

 the crop be twice cultivated during its growth. The 

 whole expense would then foot up as follows, allowing 

 for a slight addition to the cost of harvesting : 



Ploughing twice and harrowing $4 50 



Marking, planting, and seed 2 00 



After-culture, twice through 4 00 



Harvesting 3 50 



Rent 5 00 



$19 00 



The yield in this instance, with ordinary care, 

 would probably reach thirty-five or forty bushels ; but 

 may safely be assumed at thirty bushels. The stalks 

 would, in that case, amount to one and one-fifth tons, 

 which, at the value above stated, would be worth seven 

 dollars and twenty cents, giving the following result : 



Total expense of crop $19 00 



Deduct value of stalks T 20 



Cost of 30 bushels of grain $11 80 



bringing the cost per bushel to thirty-nine cents and 

 a fraction. 



We will now suppose this acre to be cultivated in 

 a more expensive manner, by increasing the amount 

 of tillage and adding manure, making the entire cost 

 as follows : 



