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Leland Ossian Howard. Process print, 1911.

A history of applied entomology : (somewhat anecdotal) / (with 51 plates) by L.O. Howard.

Mosquitoes : how they live; how they carry disease; how they are classified; how they may be destroyed / by L.O. Howard.

A fifty-year sketch history of medical entomology and its relation to public health / L.O. Howard.

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

Some miscellaneous results of the work of the Division of Entomology / prepared under the direction of L.O. Howard.

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Leland Ossian Howard

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Mosquitoes : how they live; how they carry disease; how they are classified; how they may be destroyed / by L.O. Howard.

A history of applied entomology : (somewhat anecdotal) / (with 51 plates) by L.O. Howard.

A fifty-year sketch history of medical entomology and its relation to public health / L.O. Howard.

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

Some miscellaneous results of the work of the Division of Entomology / prepared under the direction of L.O. Howard.