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Start Over You searched for: Catalog Issue Year Decade 1930 - 1939 Remove constraint Catalog Issue Year Decade: 1930 - 1939 Sudoc Stem A 56.11 Remove constraint Sudoc Stem: A 56.11

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41. Cocooning rack; by Rodney Cecil.

44. Mites. Cell for rearing mites; by A. C. Davis.