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Glue

Glue is the product of hydrolysis of proteins, usually originating from animals. The waste products of slaughterhouses (hide clippings, hoofs[?], etc.) are the source of most commercial glues.

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Flapper

... short hair for women. Actresses mimicked the style, and even cartoon characters such as Betty Boop and Minnie Mouse got into the act. Despite its popularity, the ...