12 BULLETIN 48, U. S. DEPARTMENT OF AGRICULTURE, 
was so slight that it did not affect the temperature of the corn ap- 
preciably, and consequently the losses in weight were practically the 
same on the corn in transit as on the corn at Baltimore. 
The corn in the two cars loaded from lot No. 1 of the third ex- 
periment showed a marked deterioration at the end of the test. This 
ig fe Oe CORN Sl aA ois A ae SHRINKAGE /N WEIGHT 
(CAR IC -IN TRANSIT 
| LO7T/—- 246% 
i. CAR /B -ON TRACK 
| LOTEA— /9.9% 
2C-/INTRANS/IT & 
CARP 28-ON TRACK 
: CAR 36-/NTRANS/T 
LOTS — 174% { 
CAR ZB-ONTRACK 
(CAR 40-INTRANSIT EES O/ 
(CAR 4B-ON TRACK 
Se ea ae ie 
38 20 22 24 26 28 30 
LOTS — /4%./ Yo 
LEGEND dP IE 
——CORM IB TRANSIT, BALTIMORE 
“O-AlR )TO GHICAGO & FETURN 
—=——-COPRN GN TRACK, 174 
“AUR )BALTIHORE YARDS 
OF: 
TEMPERATURE 
Fic, 4.—Diagram showing the loss in the weight of the corn, the average temperature of 
the corn in each of four cars in transit from Baltimore to Chicago and return, and 
also the mean daily air temperature through which the cars passed, as compared 
with the same factors on the four duplicate cars of corn held on the track at Balti- 
more in the third experiment. 
deterioration was due almost entirely to the high moisture content of 
the corn, which became hot in the cars as a result of fermentation 
and the development of molds. On March 22 the average tempera- 
ture of the corn in each of the two cars was approximately 55° F. 
At the end of the experiment the average temperature of the corn in 
the car that remained on the track: at Baltimore had increased to 
