10 



BULLETIN" 102, U. S. DEPARTMENT OF AGRICULTURE. 



in 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 tf covered Location 



Item of comparison. 



Rail crib 



Single crib... 

 Double crib. 



Turoin 111 /Acidity c. c. 



lurpin, iu.... i Germination.. ..per cent. 



f'erro Gordo / A «dity c - c - 



L-erro Ltorao, j Germmat j on _ _ _ _ per cent _ 



'/Acidity c. c. 



\Germination per cent. 



111. 

 Long Creek, 111 



Dates of sampling, 1913. 



Janu- 

 ary. 



18.6 

 96.0 



14.0 



98. 



18.4 

 98.0 



Febru- 

 ary. 



March. 



15.0 

 100.0 



13.4 

 97.0 



15.2 

 96.0 



15.4 



98. 



14.6 

 97.0 



16.8 

 94.0 



April. 



May. 



15.4 



99.0 



12.6 

 98.0 



15.3 

 85.0 



} o, 



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 Y. — Average and range in degree of acidity of individual ears of com sampled 

 from farm cribs at Turpin, Long Creek, and Cerro Gordo, III. 





Acidity (c. c). Number of earewith acidity- 



Total number of ears. 



Average. 



Minimum. 



Maximum. Jeto* 



Between 

 20.1 and 

 25 c. c. 



Between 

 25.1 and 

 30 c. c. 



Above 

 30 c. c. 



144 



17.0 



9.8 



31.8 



120 



21 



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 wall 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- 



