10 
BULLETIN 215, V. S. DEPARTMENT OF AGRICULTURE. 
acidity in the meal requires explanation. That the acidity of both 
corn and freshly ground meal would be the same is obvious, but the 
increase in the meal is much more rapid than in the corn. In cases 
where the acidity of the meal is in excess the cause is directly trace- 
able to delay in delivery of the samples, which in some instances 
was a week or more. Experience shows that corn will not materially 
increase in acidity during that time. 
The acidity given in Table 2 for the corn should in all cases be 
taken as that of the corresponding meal at the time of grinding. 
The excessive amount of acidity in some of the samples of meal 
when analyzed merely illustrates the difficulty in keeping meal of 
this type, which fact is further brought out by the results of the later 
experiments. (See Tables 12 and 14.) 
BOLTED UNDEGERMINATED MEAL. 
Results obtained in the analysis of bolted, undegerminated meal, 
as well as of the corn from which it was milled, appear in Table 3. 
The mills in which the corn was ground are all located in the South 
except No. 18, which is in Iowa, and No. 35, which is in Rhode 
Island. In most of the mills grinding was done by stones; in Nos. 
18, 36, 37, and 38, however, rolls were used. The corn ground in 
all the southern mills was white dent, in the Iowa mill it was yellow 
dent, and in the Rhode Island mill it was white flint. 
Table 3. — Composition of bolted, undegerminated corn meal and of corn from which 
meal was milled. 
Analysis as received. 
Analysis calculated to moisture-free 
basis. 
Product. 
U5 
© 
© 
© 
u? 
© 
M 
| 
"3 
>, 
§| 
j/ 
— CO 
§1 
|3 
f X 
|5, 
"S 
+3 ® 
© 
s 
-. 
1 
■gx 
tl 
2 * 
©■ 
X3 
£ 
< 
£ 
ft 
£ 
o 
< 
-> 
ft 
ft 
fc 
O 
< 
White corn and meal: 
Mill No. 1, Alabama- 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
Corn, Middle West.. 
13.05 
32.0 
8.47 
3.70 
71.49 
2.00 
1.29 
36.8 
9.74 
4.26 
82.22 
2.30 
1.48 
Meal, bolted 
14.94 
33.8 
7.75 
2.92 
72.53 
.83 
1.03 
29.8 
9.11 
3.43 
85.27 
.98 
1.21 
Mill No. 4, Georgia- 
Corn 
13.99 
25.4 
8.81 
3.78 
70.19 
1.95 
1.28 
29.5 
10.24 
4.40 
81.61 
2.26 
1.49 
Meal, bolted 
12.60 
27.7 
9.09 
3.72 
71.94 
1.48 
1.17 
31.7 
10.40 
4.26 
82.30 
1.70 
1.34 
Mill No. 34, Georgia- 
Corn 
12.79 
23.5 
8.93 
4.30 
70.62 
2.06 
1.30 
26.9 
10.24 
4.93 
80.98 
2.36 
1.49 
Meal, bolted 
11.32 
26.2 
9.22 
4.35 
72.12 
1.64 
1.35 
29.6 
10.39 
4.90 
81.34 
1.85 
1.52 
Mill, No. 5, Georeia— 
Corn, Middle West.. 
14.04 
23.0 
8.59 
3.55 
70.54 
2.04 
1.24 
26.8 
10.00 
4.13 
82.06 
2.37 
1.44 
Meal, bolted 
11.60 
25.5 
8.87 
3.78 
72.77 
1.68 
1.30 
28.8 
10.04 
4.27 
82.32 
1.90 
1.47 
Mill No. 21, Missouri- 
Corn, Middle West.. 
14.87 
25.8 
8.75 
3.58 
69.47 
1.99 
1.34 
30.3 
10.28 
4.20 
81.62 
2.34 
1.56 
Meal, bolted 
12.78 
24.1 
8.97 
3.04 
72.92 
1.17 
1.12 
27.6 
10.28 
3.49 
83.61 
1.34 
1.28 
MillNo. 9, Mississippi- 
Corn, Kentucky 
12.54 
30.0 
9.22 
4.24 
70.73 
1.91 
1.36 
34.3 
10.54 
4.85 
80.87 
2.19 
1.55 
Meal, bolted 
12.45 
44.5 
9.06 
4.72 
70.88 
1.38 
1.51 
50.8 
10.35 
5.39 
80.96 
1.58 
1.72 
Mill No. 35, Rhode 
Island — 
Corn, R. I. flint 
12.93 
22.5 
9.50 
4.47 
69.94 
1.83 
1.33 
25.8 
10.91 
5.13 
80.33 
2.10 
1.53 
Meal, bolted 
10.12 
21.7 
8.97 
4.83 
73.39 
1.31 
1.38 
24.2 
9.98 
5.38 
81.64 
1.46 
1.54 
