A slightly advanced case of common sheep scab (Psoroptes communis ovis). Illustration for Bureau of Animal Industry Bulletin 21, Plate 1.

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Citation

Unknown. undated. “A slightly advanced case of common sheep scab (Psoroptes communis ovis). Illustration for Bureau of Animal Industry Bulletin 21, Plate 1..” Special Collections, USDA National Agricultural Library. Accessed June 18, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/8085.