30 
BULLETIN IT. U. S. DEPARTMENT OF AGRICULTURE. 
on the inside of the barrel next to .the side wall of the car. half war 
between the bunker and door, showed a gradual rise of temperature, 
G reaching 36.5° F. (2.2° C.) . It is interesting to note that on account 
of the wet floor the poultry in the bottom half of the barrel was some- 
times 2 or 3 degrees warmer than that in the top half. The poultry 
hi the middle portion of the car. away from the side walls, was likewise 
gradually increasing in temperature (J), but lagged far behind the 
temperature of the air in the car. The air in the car became warmer 
85 
75 
65 
55 
45 
35 
( 
25 
75 
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asg^^^^^s^^^ y^^^ 
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Wf HOURS 
r 
6p.m. 6am. 6p.m. 6a., 
6pm. 6am. 6p.m. 6a.m. 
Fig. 15. — Temperatures in large cars with 2 inches of insulation on roof. 
during the day and again colder at night (III. XT). Even the tem- 
perature inside the poultry barrel along the side of the car was notice- 
ably influenced (V. G) by the warm atmosphere during the day. 
CONCLUSIONS. 
The chemical data obtained by analyzing well-handled, dry-packed, 
dressed poultry after transportation in refrigerator cars indicate that 
the condition of this commodity is greatly influenced by the tempera- 
tures prevailing in the car throughout the transit period. The rail- 
roads have recognized that "dairy freight/' which includes dressed 
poultry, eggs, and butter, requires refrigerator service for the greater 
