Search Results - Howard, L.O. (Leland Ossian)

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  1. 1
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    Mosquitoes and fleas / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1896
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  2. 2
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    The Mexican cotton-boll weevil (Anthonomus grandis Boh.) / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1897
    Government Document Book

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  3. 3
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    Larger Corn Stalk-Borer (Diatraea Saccharalis Fab.) / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1896
    Government Document Book

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  4. 4
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    General work against insects which defoliate shade trees in cities and towns / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1896
    Government Document Book

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  5. 5
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    The principal household insects of the United States / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1899
    Government Document Book

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  6. 6
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    The grass and grain joint-worm flies and their allies : a consideration of some North American phytophagic Eurytominæ / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1896
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  7. 7
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    Revision of the Aphelininæ of North America : a subfamily of hymenopterous parasites of the family Chalcididæ / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1895
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  8. 8
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    A study in insect parasitism : a consideration of the parasites of the white-marked tussock moth, with an account of their habits and interrelations, and with descriptions of new s... by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1897
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  9. 9
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    Insects affecting the cotton plant / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1897
    Government Document Book

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  10. 10
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    Technical results from the Gipsy moth parasite laboratory. by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1916
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  11. 11
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    Legislation against injurious insects : a compilation of the laws and regulations in the United States and British Columbia / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1895
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  12. 12
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    Box-elder plant-bug (Leptocoris trivittatus Say.) / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1898
    Government Document Book

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  13. 13
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    How insects affect health in rural districts / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1902
    Government Document Book

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  14. 14
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    Hydrocyanic-acid gas against household insects / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1907
    Government Document Book

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  15. 15
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    Remedies and preventives against mosquitoes / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1919
    Government Document Book

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  16. 16
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    The mosquitoes of North and Central America and the West Indies / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1912
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  17. 17
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    Remedial work against the Mexican cotton-boll weevil / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1898
    Government Document Book

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  18. 18
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    The yellow-fever mosquito / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1913
    Government Document Book

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  19. 19
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    The insect book : a popular account of the bees, wasps, ants, grasshoppers, flies and other North American insects exclusive of the butterflies, moths and beetles; with full life h... by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1902
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  20. 20
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    Mosquito remedies and preventives / by Howard, L. O. (Leland Ossian), 1857-1950

    Published 1932
    Government Document Book

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