12 
BULLETIN 1290, U. S. DEPARTMENT OF AGRICULTURE 
From the above it is evident that there was more rot in the oranges 
shipped under ventilation than in those under refrigeration. There 
was, however, no large amount of rot in the fruit shipped under ven- 
tilation on this trip. 
Further data as to the value of refrigeration in preventing rot in 
oranges transported from San Juan to Xew York were obtained by 
comparing the extent of the rot in a certain lot of fruit shipped 
under refrigeration on this steamer with an exactly comparable lot 
85° 
85° 
80° ]L 
/— \ /SO 
80° 
75° v\ 
Outside: A 
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75° 
70° | 
2* 
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\ 70° 
65° "7A> 
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'7 
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\ 65° 
60° 
h 60° 
55° 
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AM. P.m. 
A.M. ' R M. 
A.M.' RM, 
AM.' RM. 
A.M. R M. 
1st DAY 
2o DAY 
3D DAY 
4TH DAY 
5th DAY 
SEPT 28 
SEPT 29 
SEPT 30 
OCT 1 
OCT 2 
Fig. 7. — Average fruit temperature of fruit loaded at San Juan only and air 
temperature on No. 1 lietween-decks and the outside air and sea-water tem- 
peratures on the first trip 
shipped under ventilation on another ship. The fruit, under re- 
frigeration arrived in New York with no appreciable rot, while that 
shipped without refrigeration showed 22 per cent of decay on ar- 
rival. These two lots consisted of 1,000 boxes or more, and the usual 
market inspections of both indicate a very appreciable benefit to 
the fruit from refrigeration. 
The dunnage test and refrigeration of the compartments will be 
considered later. 
THE SECOND TRIP 
On the second trip the temperature-measuring instruments were 
again placed in Nos. 1 and 2 between-decks. There was. in addition 
to the fruit in the refrigerated compartment, a considerable quantity 
on deck and under ventilation in the holds, making possible further 
