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  1. British butterflies and moths /
    By: Westell, W. Percival (William Percival),
    Publication info: [London] :Chapman & Dodd,[192-?]
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  2. British insects (general). Illustrated by Doris Meyer.
    By: Westell, W. Percival (William Percival),
    Publication info: [London]Chapman & Dodd[1922-23?]
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  3. British mammals /
    By: Westell, W. Percival (William Percival),
    Publication info: [London] :Chapman & Dodd,[n.d.]
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  4. British reptiles, amphibians, and fresh-water fisches,
    By: Westell, W. Percival (William Percival),
    Publication info: [London]Chapman, Chapman & Dodd[n.d.]
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  5. British reptiles, amphibians, and fresh-water fishes /
    By: Westell, W. Percival (William Percival),
    Publication info: [London] :Chapman & Dodd,[192-?]
    Holding Institution: Smithsonian Libraries
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  6. Country rambles. Being a field naturalist's and country lover's note book for a year.
    By: Westell, W. Percival (William Percival),
    Publication info: London,H.J. Drane[1903]
    Holding Institution: University of California Libraries (archive.org)
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  7. The early life of the young cuckoo /
    By: Westell, W. Percival (William Percival),
    Publication info: London :Thomas Burleigh,1902.
    Holding Institution: Smithsonian Libraries
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  8. Nature stalking for boys : through field-glass, stereoscope and camera /
    By: Westell, W. Percival (William Percival),
    Publication info: London :J.M. Dent & Sons,1909.
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  9. Trees & shrubs of the British Isles, native & acclimatised,
    By: Cooper, Charles Samuel. - Westell, W. Percival (William Percival),
    Publication info: London,J. M. Dent;1909.
    Holding Institution: Wellesley College Library (archive.org)
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  10. Trees and shrubs of the British Isles; native and acclimatised,
    By: Cooper, Charles Samuel - Westell, W. Percival (William Percival),
    Publication info: LondonDent1909
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  11. A year with nature
    By: Westell, W. Percival (William Percival),
    Publication info: 1900
    Holding Institution: University of California Libraries (archive.org)
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