10 
BULLETIN 102, U. S. DEPARTMENT OF AGRICULTURE. 
iii very good condition and the degree of acidity of the corn stored on 
the farm through the winter was uniformly low. 
Table IV. — Acidity and germination of corn stored over winter on Illinois farms in 
cribs of different type. 
Type of covered Localion 
Dates of sampling, 1913. 
Item of comparison. 
Janu- 
ary. 
Febru- 
ary. 
March. 
April. 
18.6 
96.0 
15.0 
100.0 
15.4 
98.0 
15.4 
99.0 
14.0 
98.0 
13.4 
97.0 
14.6 
97.0 
12.6 
98.0 
18.4 
98.0 
15.2 
96.0 
16.8 
94.0 
15.3 
85.0 
May. 
Rail crib 
Single crib.. 
Double crib. 
Turpin, 111. 
Cerro Gordo, 
111. 
' i Acidity c. c. 
| Germination per cent. 
/Acidity c. c. 
(') 
LongCreek,Ill {^^ aJion: - ;;p - erc ^ ; 
13.4 
90.0 
15.4 
90.0 
1 Crib shelled out. 
Ears of corn were collected representing all parts of several cribs of 
corn in Illinois, and a uniformly low degree of acidity was found 
throughout the individual ears, as shown in Table V. In the sampling 
of these cribs, care was taken to secure ears which would represent 
the corn in the crib as a whole. 
Table V. — Average and range in degree of acidity of individual ears of corn sampled 
from farm cribs at Turpin, Long Creek, and Cerro Gordo, III. 
Acidity (c. c). 
Number of ears*with acidity- 
Total number of ears. 
Average. 
Minimum. Maximum. 
Below 
20 c. c. 
B etween 
20.1 and 
25 c. c. 
Between 
25.1 and 
30 c. c. 
Above 
30 c. c. 
144 1 17.0 
9.8 
31.8 
120 
1 
21 1 2 
1 
CORN IN COUNTRY, TERMINAL, AND EUROPEAN MARKETS. 
Acidity determinations were made of several thousand samples rep- 
resenting corn selected for seed, country elevator receipts and ship- 
ments, terminal-market receipts, and corn as loaded at seaboard for 
export and as discharged at foreign ports. Corn selected for seed 
was taken as that best representing the average condition of corn on 
the farm. Table VI shows that there is a steady increase in the 
acidity as the corn passes through the different grain centers from 
the farm until it has reached a foreign port. While the average of 
all the corn except that which was received at foreign ports is below 
22 c. c. in acidity, it will be seen from the range given in the right- 
hand column that there were some samples in all cases that could not 
be classed as sound corn, and on the other hand, while the corn as 
received at foreign ports had an average acidity of 30.4 c. c, indi- 
