70 MISSOURI AGRICULTURAL REPORT. 



the leaf cells in order that they may aid in the production of starch and 

 proteid. 



The cell must have phosphorus or it cannot digest its nitrogen. If 

 it does not get a sufficient quantity of phosphorus, it cannot digest enough 

 nitrogen to satisfy its needs. It must have nitrogen or it cannot assimi- 

 late the carbonic acid gas which the leaf breathes in as we breathe in 

 the air. It must have potash in order to accomplish the changes where- 

 by the carbon of the atmosphere becomes starch, sugar and oil. In 

 brief, phosphoric acid governs the quantity of nitrogen the plant can 

 take up ; and the nitrogen the quantity of carbon it can breathe in ; and 

 potash the formation of organic substances. 



Such is about what goes on under your eyes every day in every 

 plant, and while we have applied it to this particular plant that is under 

 discussion, the same is true of all plants because the compounds that I 

 have mentioned occur in all, and the machines which Nature provides 

 only manufacture more of one and less of another. 



♦MISSOURI CORN SCORE CARD. 



Uniformity of Exhibit lO 



Maturity and Market Condition 15 



Shape of Ears 10 



Color 



(a) Kernels 5 



(b) Cob 5 



Butts 10 



Tips 5 



Shape of Kernel • 10 



Proportion of Length to Circumference 10 



Space between Kernels 5 



Proportion of Corn to Ear 15 



Total 100 



DIRECTIONS FOR JUDGING. 



Uniformity of Exhibit. — The ears of the exhibit should be similar 

 in size, shape, color and indentation. For each ear defective in this re- 

 spect cut the exhibit not more than one point. 



Maturity and Market Condition. — E^rs should be firm and kernels 

 sound and free from mould and injury. Kernels should be tight on the 

 cob. Determine this by twisting in the hand or moving kernels with 

 the thumb. Cut not more than one point for each ear defective in these 

 respects. 



