CARRYING QUALITIES OF EXPORT CORN. 89 
hold. During the remainder of the voyage the temperature of the 
corn stowed next to the tank-space bulkhead did not vary a great 
deal until the last few days when it increased 21 degrees in 3 days 
near the surface of the corn and 15 degrees in 4 days 10 feet below 
the surface. The temperature of the corn stowed back from the 
tank space continued to increase irregularly during the whole of the 
voyage and reached 115° F. near the surface and 116° F. 10 feet 
below the surface before it was discharged. ‘Thermometer 27, located 
next to the engine room bulkhead about 20 feet from the surface of 
the corn indicated an increase from 56° to 90° F., or an increase of 
34 degrees during the first 12 days ending March 14, as compared 
with an increase from 56° to 62° F., or 6 degrees, in the corn stowed 
the same height but some distance back from the bulkhead, as was 
indicated by thermometer 28. From March 14 on there was but 
little change in either position. The temperature of the corn near 
the bottom varied somewhat with the water temperature, as is 
shown by the temperature records for thermometers 29 and 30, that 
near the bulkhead being generally somewhat higher than the corn 
some distance back. 
The corn stowed next to the tunnel was affected by the heat which 
penetrated the tunnel from the engine room, the details of which are 
explained under the discussion of the changes that took place in the 
corn in hold 5. 
The changes in the condition of the corn during the voyage in 
various positions of stowage in the hold are shown in Table 15. The 
averages of the corn as discharged were: Acidity 29.8 ¢. c., germina- 
tion 25.8 per cent, sound kernels 54.1 per cent, and 49.93 pounds test 
weight per bushel, which was an average increase during the voyage 
of 9.8 c. c. in acidity, and an average decrease of 41.1 per cent in ger- 
mination, 40.5 per cent in sound kernels, and a little over 3.5 pounds 
in test weight per bushel. 
CHANGE IN TEMPERATURE AND CONDITION OF THE NATURAL CORN IN HOLD NO. 5. 
About one-fifth of the natural corn in hold 5 became heat damaged 
while it was in the vessel. The heating corn was found at the top 
to about one-fourth the distance down and also along the shaft 
tunnel. In the heating corn on top the highest temperature and the 
greatest damage were found at the surface, while in the heating 
corn along the shaft tunnel, the highest temperature and the greatest 
damage were found in the corn located against the tunnel. 
The temperature of the corn in this hold at time of loading varied 
from 53° to 55° F. During the voyage the corn near the surface 
on a level with the main deck gradually increased in temperature 
until it reached a maximum of 122° F. on April 2, 3 days before 
the ship was docked, as is shown by the temperature records for 
thermometer 38 in figure 25. The temperature of the corn about 
