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32. Bee diseases: a problem in economic entomology
33. Fifty years among the bees
34. Historical notes on the causes of bee diseases
35. Queen-rearing in England: with notes on a scent producing organ in the worker-bee and how pollen is collected by the honey-bee and the bumble-bee.
36. A thousand answers to beekeeping questions
37. Natural history of the honeybee: or, Are bees reflex machines?
38. The utilization of carbohydrates by honeybees
39. Variation and correlation in the appendages of the honeybee
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