The house fly : disease carrier an account of its dangerous activities and of the means of destroying it / by L. O. Howard.

  • Howard, L. O. (Leland Ossian), 1857-1950
Date:
1912

Licence: In copyright

Credit: The house fly : disease carrier an account of its dangerous activities and of the means of destroying it / by L. O. Howard. Source: Wellcome Collection.

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