SHRINKAGE OP SHELLED CORN IN CARS IN TRANSIT. 



11 



Table VI. — Weight of corn, in each car immediately after loading on March 

 2, 1.911, and the shrinkage, or loss in weight, together with the moisture con- 

 tent at time of loading and, the average temperature of the corn at time of 

 loading and unloading. 



Lot 

 No. 



Car designation and movement. 



Moisture 

 content 

 of corn 

 when 

 loaded. 



Net corn 

 in car 

 when 



loaded. 



Shrinkage or loss 

 in weight. 



Pounds. 



Per cent. 



Average tempera- 

 ture of corn when- 



Loaded. 



Un- 

 loaded. 



I Car 1-C, transit, Baltimore to Chi- 

 cago and return 

 Car 1-B, held on track in Baltimore 

 yards 



I Car 2-C, transit, Baltimore to Chi- 

 cago and return 

 Car 2-B , held on track in Baltimore 

 yards 



I Car 3-C, transit, Baltimore to Chi- 

 cago and return 

 Car 3-B, held on track in Baltimore 

 yards 



I Car 4-C, transit, Baltimore to Chi- 

 cago and return 

 Car 4-B , held on track in Baltimore 

 yards 



Per cent. 

 21.6 



19.9 



17.4 



Pounds. 

 67, 170 

 67, 200 

 66, 970 

 66, 740 

 56, 600 

 56, 350 

 66, 580 

 66,250 



390 

 400 

 160 

 175 

 130 

 130 

 100 

 70 



0.58 

 .59 

 .24 

 .26 

 .23 

 .23 

 .15 

 .11 



>F. 



40.8 

 40.0 

 40.0 

 40.0 

 40.0 

 40.0 

 40.0 

 40.0 



'F. 



112.0 

 109.7 

 41.5 

 41.5 

 40.7 

 40.5 

 41.3 

 41.3 



As shown in Table VI and figure 4, the shrinkage, or loss in weight, 

 of the corn varied according to the moisture content. The corn 

 containing 21.6 per cent of moisture lost 0.58 of 1 per cent when en 

 route from Baltimore to Chicago and return, while the duplicate car 

 of corn held on the track at Baltimore showed a shrinkage in weight 

 of 0.59 of 1 per cent. The car of corn which contained 19.9 per cent 

 of moisture lost 0.21 of 1 per cent in transit, while the duplicate lot 

 in the car which was held on the track at Baltimore showed a loss of 

 0.26 of 1 per cent. The corn from lot ISTo. 3, containing 17.1 per cent 

 of moisture, showed the same shrinkage in transit as the car of corn 

 which remained on the track at Baltimore — 0.23 of 1 per cent. The 

 corn from lot No. 1, containing 14.1 per cent of moisture, showed 0.15 

 of 1 per cent loss in weight while on the car in transit, as against 0.11 

 of 1 per cent loss on the corn in the duplicate car at Baltimore. 



In this experiment the losses in weight were practically the same 

 on the cars of corn in transit as on the cars held at Baltimore. By 

 consulting the temperature records shown in figure 4 it will be seen 

 that there was not such a marked difference in the air temperatures 

 at Baltimore and at western points during the third experiment as 

 occurred in. the second experiment, which is illustrated in figure 3, 

 page 9. The air temperature through which the cars passed en 

 route from Baltimore to Chicago and return was lower on several 

 days than the air temperature at Baltimore, but this difference oc- 

 curred only for three or four days at most, and on several days the 

 air temperature surrounding the cars in transit was higher than the 

 air temperature at Baltimore. The difference between the air tem- 

 perature at Baltimore and at western points during this experiment 



