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Appendix culture;" Hamet, "Cours Complet d'Apiculture;" De Bauvoys, "Guide de l'Apiculteur;" Pollmann, "Die Biene und ihre Zucht;" Jeker, Kramer, and Theiler, "Der Schweizerische Bienenvater;" S. Simmins, "A Modern Bee Farm;" F. W. Vogel, "Die Honigbiene und die Vermehrung der Bienvölker;" Baron A. Von Berlepsch, "Die Biene und ihre Frucht," etc.

F. Cheshire, "Bees and Bee-keeping" (vol. i.—Scientific); T. W. Cowan, "The Honey-bee;" J. Perez, "Les Abeilles;" Girard, "Manuel d'Apiculture" (Les Abeilles, Organes et Fonctions); Schuckard, "British Bees;" Kirby and Spence, "Introduction to Entomology;" Girdwoyn, "Anatomie et Physiologie de l'Abeille;" F. Cheshire, "Diagrams on the Anatomy of the Honey-bee;" Gunderach, "Die Naturgeschichte der Honigbiene;" L. Buchner, "Geistesleben der Thiere;" O. Bütschli, "Zur Entwicklungsgeschichte der Biene;" J. D. Haviland, "The Social Instincts of Bees, their Origin and Natural Selection."

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