32 BULLETIN 274, TJ. S. DEPAKTMENT OF AGRICULTTJKE. 



cent of decay, respectively, at the end of 4 and 8 day transit periods, 

 with 13.8 per cent of decay and 36.4 per cent of decay at the re- 

 spective market-holding inspections. 



CAREFULLY HANDLED COMMERCIALLY HANDLED 

 PRECOOLED NON-PRECOOLED 



PER CENT DECAY PER CEA/T DECAY 



1 ' 1 



1 FOUR DAYS IN CAR 1 ' 1 1 ' ' 1 



| 1.0 ON WITHDRAWAL 7.4 H2SS3 



0.0 ONE DAY LATER 13.8 I IIIIIII1IIIIIIII1 1 



SIX DAYS IN CAR 



0.0 ON WITHDRAWAL 11.9 BSMlMUBM 



"■■: ■■:.-l' : ;|1':>! 1 | 5.7 ONE DAY LATER 25.5 Iwhi: .'SIM 



EIGHT DAYS IN CAR 





Mill 3.9 ONE DAY LATER 36.4 1' : 'V ! -"I 





Fig. 24. — Diagram illustrating the percentage of decay in carefully handled precooled 

 red raspberries in comparison with commercially handled nonprecooled red raspberries 

 shipped from Puyallup, Wash., to Grand Forks, N. Dak., season of 1912. 



DECAY IN TOP AND BOTTOM CRATES. 



The temperature effect is again strikingly emphasized in a com- 

 parison of decay in the top and bottom crates in a refrigerator car. 

 It has been conclusively demonstrated that there is a marked differ- 



PRECOOLED NON PRECOOLED 



PEP C£AJT DECAY PE/? CEA/7" DECAY 





1 1 FOUR DAYS IN CAR 1 ' 1 ' 



E*3 2.6 BOTTOM TIER 5.5 BUM 



1 ' 1 



1 ' 1 



illllllllllltti 5.6 TOP TIER 9.4 lllllllllllllillllllllllllll 



SIX DAYS IN CAR 



PH 3.0 BOTTOM TIER 9 6 BBBBB 



■■■III 6.5 TOP TIER 14.2 IlIIllllllIIIIIIIllHIUIIII 



EIGHT DAYS IN CAR 



Ulllllllli:^.:; 1 ::■ I I5.S TOP TIER 28.1 |,7 • ' ; 



■III 1 







Fig. 25. — Diagram illustrating the percentage of decay on withdrawal in bottom and 

 top tiers in precooled and nonprecooled commercially handled red raspberries shipped 

 from Puyallup, Wash., to Grand Forks, N. Dak., season of 1912. 



ence in temperature at the bottom and the top of the load in an iced 

 car. This difference is usually more than 10 degrees and less than 20 

 degrees. In the nonprecooled lots the bottom crates showed 5.5 per 

 cent of decajf and the top crates of the same fruit 9.4 per cent of 

 decay at the end of four days. A study of Table IX and figure 25 



