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Two samples of popcorn before and after popping, showing difference in expansibility.

Image (illustration or photograph) for this item, linking to higher res image.

Citation

Unknown. “Two samples of popcorn before and after popping, showing difference in expansibility..” Special Collections, USDA National Agricultural Library. Accessed September 19, 2026, https://www.nal.usda.gov/exhibits/speccoll/items/show/467.