106 REPORT OF NATIONAL MUSEUM, 1921. 
from selected stock grown by him. This exhibit represents an in- 
dustry that is gaining in importance in the United States, and is 
deserving of more recognition. 
The importance of the closer utilization of wood as a conserva- 
tion measure, and the practicability of laminated wood construction 
in the manufacture of a number of articles subject to severe usage, 
is shown by a series of 23 specimens of built-up airplane wing 
ribs, tenpins, duckpins, and shoe lasts, which were received by trans- 
fer from the Forest Products Laboratory at Madison, Wis. 
A moth-proof cedar chest was presented by the Piedmont Red 
Cedar Chest Co., of Statesville, N. C. This chest, designed and 
built especially for exhibition in the National Museum, is devoid of 
all brass trimmings, save the keyhole plate, and is finished with a 
high wax polish, so that nothing has been added to detract from 
the simple beauty of the wood itself. 
As accessions of importance other than those mentioned under 
textiles, medicine, and wood technology, there should be mentioned 
the transfer from the States Relations Service of the Department 
of Agriculture, of an exhibit of over 100 examples of canned fruits, 
vegetables, fish, and meats, which has attracted the attention of large 
numbers of visitors. This appetizing array of canned foods was 
put up by children according to the coldpack method, and repre- 
sents a selection from the jars winning prizes in 17 State contests 
between members of boys and girls canning clubs. The 10 best 
jars entered in each State contest were selected by the State club 
leader, and sent to Washington for exhibition in the National 
Museum, as an additional honor to the youthful prize winners. These 
examples of an important work in food conservation, now being 
carried on by children all over the United States, represent a great 
advance in canning methods, and show that home-put-up foodstuffs 
which can be shipped about from local to State fairs, and across 
the country to Washington, for exhibition under severe conditions 
of light and heat, well deserve the attention they have received in the 
section of foods. 
Fifteen large charts, showing graphically the composition and 
fuel value of important articles of food, were added to the section of 
foods, by transfer from the Department of Agriculture. They serve 
to further explain the models of 100 calorie portions, and the exhibits 
showing the principal classes of foods, which were mentioned in a 
previous report. : 
The importance of dehydration as a means of conserving a local 
surplus of fresh foods, and of avoiding many transportation difficul- 
ties, is brought to mind by a series of 22 specimens of dehydrated 
California fruits and vegetables, contributed by the Caladero Prod- 
ucts Co., Atascadero, Calif. 
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