Dec. 15,1923 
Control of Apple Scald 
527 
the average where two or three unoiled ones were used inside an oiled 
one is somewhat higher. The results indicate that the efficiency of the 
oiled wrappers in scald control was decreased by placing unoiled wrappers 
between them and the apples. This decrease, however, is extremely 
small when compared with die percentage of scald on the untreated fruit. 
Oil determinations were made on the wrappers that had been used in 
the above experiments, and the results are reported in Table V. All 
percentages are based on the dry weight of the oiled paper. 
TabIvB IV .—Effect of unoiled wrappers inside of oiled ones 
Variety, locality, and period of storage. 
Grimes Golden, Rockville, Md., 
Sept. 6, 1922, to Jan. 12, 1923.. 
Grimes Golden, Wenatchee, 
Wash.,Sept. 13, 1922 to Feb. 
* 7 > 1923. 
York Imperial, Arlington, Va., 
Sept. 12,1922, to Jan. 29,1923. 
York Imperial, Woodside, Del., 
Sept. 21,1922, to Feb. 26,1923. 
York Imperial, Rockville, Md., 
Oct. 2, 1922, to Feb. 17, 1923... 
York Imperial, Wenatchee, 
Wash., Oct. 23, 1922, to Apr. 
1923. . : . 
Stayman Wmesap, Woodside, 
Del., Sept. 28, 1922, to Feb. 
26, 1923. 
Stayman Winesap, Wenatchee, 
Wash., Oct. 25, 1922, to Mar. 
I 7 > 1923. 
Rome Beauty, Wenatchee., 
Wash., Oct. 10, 1922, to May 
25. 1923. 
White Pearmain, Wenatchee, 
Wash., Oct. 12,1922, to Apr. 3, 
1923. 
Oiled wrap¬ 
per used. 
No. 3a. . 
No. 13a. 
No. 3a.. 
No. 13.. 
No. 11.. 
No. 4... 
(No. 3a.. 
No. 11.. 
No. 12.. 
No. J3.. 
No. 13a. 
Average results. 
Percentage of scald. 
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49 
36 
65 
46 
40 
51 
53 
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The fresh oiled wrappers averaged 0.3574 gm. of oil per wrapper 
and those that had been used outside of one unoiled wrapper averaged 
0.2539 gm. per wrapper, making an average loss during storage of 0.1035 
gm. per wrapper. Of this loss, 0.0678 gm. passed over to the unoiled 
wrappers, and if the movement to the liners was approximately as great 
as where single wrappers were used the remaining 0.0357 gm. is fully 
accounted for in loss to the liners. In the experiments where two 
unoiled wrappers were used inside the oiled one the fresh oiled 
wrappers had 0.4097 gm. of oil per wrapper, the used ones 0.3062 gm, 
and the unoiled ones after use a total of 0.0836 gm., leaving but 0.0199 
