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出版U.S. Department of Agriculture, 1917
URLhttp://books.google.com.hk/books?id=bZ9_AQAACAAJ&hl=&source=gbs_api
註釋"Never before have women faced such an opportunity for service as they now have in producing and conserving foods. Not only must home demands be met, but also provision must be made for those people whose production of food has been interrupted by the war. Already response to the appeals for production has been made to increasing the acreage of gardens in town and country. The responsibility of wisely utilizing the yield rests largely upon the women and girls in their homes. Canning will furnish an important means of conservation. Few more important contributions to national welfare can be made than that represent by adding to the home food supply, thus making more commercial products available for export. The use of an abundant supply of fruits and green vegetables is at all times essential to health. Since these are so abundant at certain seasons as actually to be wasted and at other times very expensive and difficult to obtain, it s important to preserve quantities of perishable fruits and vegetables during the growing season for use during the winter. The problem of furnishing an adequate and economical supply of food often is to be solved only by such conservation. In addition, the need for variety int he diet is met most easily by preserving the surplus. Owing to present conditions it is imperative not only to produce and preserve supplies of food, but also to plan in advance to select the most economical method for keeping the various products." -- p. [2]