26 BULLETIN 274, U. S. DEPARTMENT OF AGRICULTURE, 
the beneficial effects of precooling, bring out most strongly the im- 
portance of careful handling. 
PRECOOLING EXPERIMENTS IN THE SEASON OF 1912. 
During the season of 1912 the precooling investigations were con- 
tinued, and carefully handled as well as commercially handled ber- 
ries were used. The fruit was shipped to Grand Forks, N. Dak., 
as in the case of the handling investigations previously noted. Un- 
fortunately, owing to market conditions a number of precooled and 
check cars were diverted and did not reach the inspection point. 
The data, while not as comprehensive as desirable, are nevertheless 
consistent with the results of the 1911 season and are considered 
sufficiently conclusive to warrant final deductions being made. 
As in the season of 1911, more beneficial results were obtained from 
careful handling than from precooling alone. The results, however, 
bring out clearly the fact that precooling with proper handling is 
of great service and value in the preservation of fruits like red 
PRECOOLED 
NON PRECOOLED 
FER CENT DECAY PER CENT DECAY 
is ied = ° ° S 10 5 20 25 30 3s 4° as so 
|FOUR DAYS IN CAR! I ; 
B10) «ON WITHDRAWAL 0.0 
0.0 ONEDAYLATER 1.1 J 
_SIX DAYS IN CAR _ 
0.0 ONWITHDRAWAL 0.2 I 
5.7. ONE DAY LATER 12.6 [II 
EIGHT DAYS IN CAR 
0.0 ON WITHDRAWAL 4.8 (BH 
[0] 39 ONE DAY LATER 18.6 [I 
Fic. 22.—Diagram illustrating the percentage of decay in precooled and nonprecooled 
carefully handled red raspberries shipped from Puyallup, Wash., to Grand Forks, 
N. Dak., season of 1912. 
raspberries in maximum good condition while in transit. Table 6 
and Figure 22 show the results of the carefully handled precooled 
and nonprecooled shipments. 
TABLE 6.—Decay in carefully handled red raspberries shipped to Grand Forks, 
N. Dak., under ordinary icing, with and without precooling, in 1912. 
Decay on withdrawal. Decay 1 day after with- 
drawal. 
Time in iced ear. [N N 
Nonpre- Nonpre- 
Precooled. cooled! Precooled. cooled. 
Per cent. | Percent. | Percent. | Per cent. 
1.0 0 0 
OSS: foo ca ak eae end Fe ee ee ee es sg! 
CONUS tes a ke ee oe ne eee = ee On od 2 5.7 12.6 
SOaVEs. oa ose eae, Eee ae ee ee ae 0 | 4.8 3.9 18.6 
The precooled carefully handled berries showed practically no 
decay on withdrawal after four, six, and eight days in the car, ex- 
cept 1 per cent after four days. This is an apparent discrepancy, 
but it is easily accounted for when one considers that it is impossi- 
ble to use the same lots for inspection more than once. The non- 
