COMPOSITION OF CORN 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 
(NX 6.25). 
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. 
19.27 
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 
\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. 
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. 
Degcrminated, bolted, roller-ground meal. 
Moist- 
ure. 
P.ct. 
19.20 
17.73 
15.72 
13.78 
12.91 
11.26 
Acid- 
itv. 
16.0 
17.6 
13.8 
13.3 
13.0 
13.9 
19.8 
21.4 
16.4 
15.4 
14.9 
15.7 
Protein 
(NX6.25). 
,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 
Fat. 
P.ct. 
0.67 
.83 
.75 
1.05 
.92 
1.06 
.83 
1.01 
.89 
1.22 
1.06 
1.19 
Nitro- 
gen-free 
extract. 
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 
Crude 
fiber. 
P.ct. 
0.46 
.57 
.56 
.64 
.60 
.70 
.57 
.69 
.66 
.74 
.69 
.79 
Ash. 
P.ct. 
0.32 
.36 
.34 
.44 
.43 
.42 
.40 
.44 
.40 
.51 
.49 
.47 
