CORN 



53 



9. "Cracked" corn shall include all coarsely broken pieces of kernels that will pass 

 through a perforated metal sieve with round holes \ of an inch in diameter, except 

 that the finely broken corn as provided under Rule No. 8 shall not be considered 

 as "cracked" corn. 



10. It is understood that the damaged corn, the foreign material, including pieces 



of cob, dirt, finely broken corn, other grams, etc., and the coarsely broken or 

 "cracked" corn, as provided for under the various grades shall be such as occur 

 naturally in corn when handled under good commercial conditions. 



11. Moisture percentages, as provided for in these grade specifications, shall conform 



to results obtained by the standard method and tester as described in Circular 

 No. 72, Bureau of Plant Industry, United States Department of Agriculture. 



Composition and Feeding Value of Corn, The following is a com- 

 pilation of American analyses of the grain of the three principal types 

 of corn and the stalks of dent corn, under three conditions: 



COMPOSITION OF CORN (MAIZE). 



The following tabulation gives the farm value and feeding value of 

 corn per acre as compared with oats, wheat and hay, when grown in a 

 four years' rotation on the limestone soil at the Pennsylvania Experiment 

 Station : 



THE AVERAGE ANNUAL YIELD DURING 25 YEARS OF 24 TREATMENTS ON 36 

 PLATS ON EACH OF 4 TIERS AT THE PENNSYLVANIA STATION. 



