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Köhler's Medizinal-Pflanzen in naturgetreuen Abbildungen mit kurz erläuterndem Texte : Atlas zur Pharmacopoea germanica, austriaca, belgica, danica, helvetica, hungarica, rossica, suecica, Neerlandica, British pharmacopoeia, zum Codex medicamentarius, sowie zur Pharmacopoeia of the United States of America - Gürke, M. (Max) 1854 -1911 (Fr. Eugen Köhler, 1898)

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Leaflets of Philippine botany (Oriental Printing Co, 1911)

Leaflets of Philippine botany (Oriental Printing Co, 1913)

Leaflets of Philippine botany (Oriental Printing Co, 1914)

Leaflets of Philippine botany (Oriental Printing Co, 1915)

Leaflets of Philippine botany (Oriental Printing Co, 1920)

Leaflets of Philippine botany (Oriental Printing Co, 1938)

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A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations - Pammel, L. H. (Louis Hermann), 1862 -1931 (The Torch Press, 1911)

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