REFRIGERATION OF DRESSED POULTRY IN TRANSIT. 
25 
beginning of the haul, but failed to hold. Samples from this position 
fall, by chemical analysis, into group 1, Table 2. The efficiency of 
the car is represented by 1.05. 
Figure 13, c, d, of cars belonging to type C, are the records of 
Experiments 2085 and 2099, respectively. Experiment 2085, with 
an outside temperature averaging 72° F. (22.2° C), gave an efficiency 
of 1.01; Experiment 2099, with the atmosphere averaging 61° F. 
(16.1° C), is represented by 1.02. The analyses of the poultry 
carried at the bunker ends of these cars are found in group 2, Table 2. 
Figure 13,e,f, pre- 
sents records of sam- 
ples belonging to 
Group III, figure 1. 
The cars were of 
The records illustrate the 
g^^mn 
o o~ | e o 
m=^m 
type D 
effect of long service on cars which 
were at one time excellent refrigerators. 
These two cars are of a very old series 
of this type and seem to have lost 
their efficiency through the continual 
wear and tear to which they are sub- 
jected. Their efficiency was 0.56 and 
0.87, respectively, as compared with 
1.19, the average for their type. The 
atmospheric temperatures averaged 
70° F. (21.1° C.) and 77° F. (25° C), 
respectively. The goods at the bunker 
end of these cars show the effects of 
high temperatures, as may be seen by 
reference to group 3 
of Table 2, or column 
3 of figure 2. 
Figure 13, g, \ 
shows records of ship- 
ments which yielded samples of Group IV, figure 1. The cars 
were of type B, efficiency, 0.60 in each case. The records shown 
as figure 13, g, were made in a comparatively new car, when 
the outside temperature averaged 74° F. (23.3° C). It was 
possible to reduce the bunker to a low temperature at the begin- 
ning, but as soon as the car started on the trip the temperature 
began to rise and never receded. The temperature at the center 
was never low. The records in figure 13, 7^, were both high at all 
times. This was an older car of type B. The outside temperature 
averaged 73° F. (22.7° C), with a maximum variation of 17° F. 
The differences between bunker end and center are practicallv lost 
i 
Fig. 10.— Wire basket bunker used in type C car. 
