44 BULLETIN 764, U. S. DEPARTMENT OF AGRICULTURE. 
In fermenting corn, the r oisture contained within the kernels is 
liberated quite rapidly, and escapes in the form of vapor. After the 
cargo arrived in Aalborg, the hot corn under the hatch in hold 2 was 
discharged to a-depth of about 8 feet, and then the hatch closed 
again. While the hatch was open, there was no “sweat” dropping 
from the hatch beams because the heated moisture-laden air escaped 
through ventilation, but, a short time after the hatch had been 
closed the water was found to be dripping from the deck and hatch 
beams quite rapidly, which stopped again after the hatch had been 
opened a few minutes. During the voyage all of the ventilators 
leading to the corn were kept closed. 
CORRELATION OF THE CHANGES IN THE TEMPERATURE OF THE CORN AND THE 
CHANGES IN SOUND KERNELS, ACIDITY, GERMINATION, AND TEST WEIGHT PER 
BUSHEL. 
Tt was seen in the tables giving the detailed analyses of the samples 
that considerable change took place in the temperature and con- 
dition of the corn in 
the various positions 
of stowage while the 
corn was in the vessel. 
SS The increase in the 
a  Lempera une mmosamans 
corn in the holds of a 
vesselis brought about 
principally through 
(1) inherent causes, 
usually fermentation, 
which produces heat, 
and (2) external in- 
fluences, such as higher 
air and sea-water 
temperatures and the 
heat from the ship’s 
machinery, which 
penetrates the cargo 
holds and frequently 
induces fermentation. 
As the corn in bulk 
does not afford suffi- 
= CONDITION OF THE CORN AS LOADED cient ventilation for 
EMME = CONDITION OF THE CORN AS DISGHARGED 
the heat to escape, 
Fig. 28.—Diagram showing the correlation of the temperature and 
condition of the corn samples in crossed-wire containers as loaded the temperature con- 
and as discharged. (Cargo No. 2.) tinues to increase un- 
til the corn gets hot. The maximum temperature recorded in this 
cargo as discharged was 155° F. 
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