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The romance of bird life : being an account of the education, courtship, sport and play, journeys, fishing, fighting, piracy, domestic and social habits, instinct, strange friendships and other interesting aspects of the life of birds - Lea, John. (Seeley & Co, 1909)

Roosevelt in Africa. Containing also a complete history and study of wild animals of the world, with thrilling and exciting experiences of hunters of big game - Seymour, Frederick H. A. (1909)

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The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1895)

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The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

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Supplément au dictionnaire de l'Académie, ainsi qu'a la plupart des autres lexiques français, contenant les termes appropriés aux arts et aux sciences et les mots nouveaux consacrés par l'usage (Masson, 1827)

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