University of St. Andrews. Library. Beveridge Collection, F. W. L. Sladen
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 Bumble-bee by F. W. L. Sladen Fellow of the Entomological Society of London, Asst. Entomologist for Apiculture, Division of Entomology, Department of Agriculture, Canada; Author of The Humble-Bee
