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b. d. walsh (1808-1869)

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View Bibliography of the more important contributions to American economic entomology By United States. Bureau of Entomology.
Cover of Bibliography of the more important contributions to American economic entomology by united states. bureau of entomology.

Bibliography of the more important contributions to American economic entomology

By United States. Bureau of Entomology.

View Bibliography of the more important contributions to American economic entomology By United States. Bureau of Entomology.,Nathan Banks,Samuel Henshaw
Cover of Bibliography of the more important contributions to American economic entomology by united states. bureau of entomology.,nathan banks,samuel henshaw

Bibliography of the more important contributions to American economic entomology

By United States. Bureau of Entomology.,Nathan Banks,Samuel Henshaw

View Benjamin Dann Walsh, Illinois' first state entomologist By William F. Steinbacher-Kemp

Benjamin Dann Walsh, Illinois' first state entomologist

Benjamin Dann Walsh, Illinois' first state entomologist

By William F. Steinbacher-Kemp