10 BULLETIN 601, U. S. DEPARTMENT OF AGRICULTURE. 
usually made it easy to distinguish the precooled from the non- 
precooled lots. The heads in the precooled hampers were usually 
level with the top of the hampers upon arrival at the market, while 
those in comparable nonprecooled hampers, because of shriveling 
and general decay, usually had sunk several inches below the top. 
HOLDING LOTS. 
The results of the inspection of sixteen experimental lots held in 
the refrigerator car at Palmetto are given in Tables III and IV and 
are shown in figures 8 and 9, respectively. 
PRECOOLED NON PRECOOLED 
AFTER SIX DAYS IN ICED CAR 
percentage CAREFULLY CUT percentage 
ioo 90 80 70 SO SO 40 30 20 10 O 10 20 30 40 50 60 70 60 90 100 
U984 PRIME 90.0C 
"lllllllllllliiiiliiiiiiiiliiiiiiiiiiiiilniillmoQ MARKETABLE lonoillllllllllilllllilllliiiliiiiiiiiiiiiiinin 
0.0 WORTHLESS 0.0 
COMMERCIAL 
I —1 70.9 PRIME 40.1 1 1 
!iinminiiniiHiiiniiniiiiiiurrrmn 99.s MARKETABLE 93.3HHHIIlllHlllllllllllllllllllllllllllin 
H.5 WORTHLESS 6-7« 
THREE DAYS AFTER WITHDRAWAL (repacked lots) 
CAREFULLY CUT 
365.6 PRIME 32.2C 
Ii iiiiii i i i i i ini ii i i ii i iiiii i nmi iiiii ii 900 MARKETABLE 87.3|||| MllllllllllllllllllllllllMllllllll 
flBSiO.O WORTHLESS I27M 
COMMERCIAL 
CZTDI5.8 PRIME 3.4D 
lll l llll l lll ll ll l l ! MH I IIIMI I III 75& MARKETABLE 51 31 1111 1 11 1 1111111 11 11 1 1 ) 
BHBBB24.4 WO R T HLES S 4&-7HMUILIIJHBIIIIUI 
Fig. 8.— Diagram illustrating the percentages of prime, marketable, and worthless lettuce upon with- 
drawal from the car and three days later in precooled and in nonprecooled commercially cut and carefully 
cut lettuce held at Palmetto, Fla., season of 1913-14. 
At the first inspection of the experimental lots held in Palmetto, 
one half of the lettuce in each basket was removed and inspected, 
the lower half being left undisturbed. The inspected half was then 
repacked and the whole basket held until three days later, when 
the two halves were inspected and recorded separately under the 
headings "Repacked" and " Undisturbed." This was done in order 
to learn what effect removal from the basket and handling while 
on the market had upon the lettuce. As is brought out in Table 
III, there is very little difference in the effect of the two methods, 
such difference as there is favoring the lettuce that was removed 
and repacked. Apparently moderate handling has little or no 
