COMPOSITION OF COKN MEAL. 



23 



was only after repeated trials that suitable lots were secured. A labo- 

 ratory was set up at the mill. Here tests for moisture and acidity 

 were made on the meal immediately after milling, the remainder of 

 the analyses being finished at the Chicago Food and Drug Inspection 

 Laboratory. 



The analyses in Table 11 represent the six parallel lots finally se- 

 cured. It will be noted that the percentage of moisture in the two 

 kinds of meal of each pair are reasonably close together, thus permit- 

 ting satisfactory comparison of the results obtained after storage; 

 furthermore, that the range in moisture (less than 11 to over 19 per 

 cent) is sufficiently great to cover the trade conditions. As the corn 

 varied from day to day, it was found impossible to keep the composi- 

 tion of the meal of the different lots uniform. This, however, seemed 

 unnecessary so long as the two kinds of meal of each pair were from 

 the same corn and of practically the same moisture content. 



Table 11.- — Composition of carload lots of corn meal containing different amounts of 

 moisture, as milled December, 1913, and used in storage experiments. 



Product. 



Whole-kernel, stone-ground meal. 



Moist- 

 ure. 



Acid- 

 ity. 



Protein 

 (NX6.25). 



Fat. 



Nitro- 

 gen-free 

 extract. 



Crude 

 fiber. 



Ash. 



Meal as milled: 



Lot A, undried 



Lot B, extra low dried . . 



Lot C, low dried 



Lot D, medium dried... 



Lot E, high dried 



Lot F, extra high dried. 

 Moisture-free meal: 



Lot A, undried 



Lot B, extra low dried. . 



Lot C, low dried 



Lot T>, medium dried... 



Lot E, high dried 



Lot F, extra high dried. 



P.ct. 

 19.27 

 17.25 

 15.71 

 13.44 

 12.25 

 10.79 



23.1 

 28.5 

 19.9 

 21.3 

 24.6 

 21.8 



27.6 

 34.4 

 23.6 

 24.6 

 28.0 

 24.4 



P.ct. 

 8.56 

 8.76 

 9.00 

 9.16 

 9.44 

 9.82 



10.60 



10.59 

 10.68 

 10.58 

 10.76 

 11.01 



P.ct. 

 3.26 

 3.45 

 3.47 

 3.71 

 3.55 

 3.71 



4.04 

 4.17 

 4.12 

 4.29 

 4.05 

 4.16 



P.ct. 

 66.06 

 67.71 

 68.95 

 70.42 

 71.65 

 72.42 



81.83 

 81.82 

 81.80 

 81.34 

 81.65 

 81.17 



P.ct. 

 1.75 

 1.73 

 1.79 

 2.06 

 1.95 

 2.03 



2.17 

 2.09 

 2.12 

 2.39 

 2.22 

 2.28 



P.ct. 

 1.10 

 1.10 

 1.08 

 1.21 

 1.16 

 1.23 



1.36 

 1.33 

 1.28 

 1.40 

 1.32 

 1.38 



Product. 



Degorminated, bolted, roller-ground meal. 



Moist- 

 ure. 



Acid- 

 itv. 



Protein 

 (NX6.25). 



Fat. 



Nitro- 

 gen-free 

 extract. 



Crude 

 fiber. 



Ash. 



Meal as milled: 



Lot A, undried 



Lot B, extra low dried.. 



Lot C, low dried 



Lot D, medium dried... 



Lot E, high dried 



Lot F, extra high dried. 

 Moisture-free meal: 



Lot A , undried 



Lot B, extra low dried.. 



Lot C, low dried 



Lot D, medium dried... 



Lot E , high dried 



Lot F, extra high dried. 



P.ct. 

 19.20 

 17.73 

 15.72 

 13.78 

 12.91 

 11.26 



16.0 

 17.6 

 13.8 

 13.3 

 13.0 

 13.9 



19.8 

 21.4 

 16.4 

 15.4 

 14.9 

 15.7 



P.ct. 

 7.38 

 7.50 

 7.38 

 7.28 

 7.41 

 7.25 



9.14 

 9.12 

 8.76 

 8.45 

 8.51 

 8.17 



P.ct. 



0.67 

 .83 

 .75 



1.05 

 .92 



1.06 



.83 

 1.01 



.89 

 1.22 

 1.06 

 1.19 



P.ct. 

 71.94 

 73. 01 

 75.25 

 76.81 

 77.73 

 79.31 



89.06 

 88.74 

 89.29 

 89.08 

 89.25 

 89.38 



P.ct. 

 0.46 

 .57 

 .56 

 .64 

 .60 

 .70 



.57 

 .69 

 .66 



.74 

 .69 

 .79 



P.ct. 

 0.32 

 .36 

 .34 

 .44 

 .43 

 .42 



.40 

 .44 

 .40 

 .51 

 .49 

 .47 



