LONDON.—Ten public lectures on “Science and the Empire: the Exploitation of Plants,” arranged in cooperation with the Imperial Studies Committee, will be delivered at University College during the term which opened on Monday. The introductory lecture on January 22 will be by Prof. F. W. Oliver, and the remaining lectures are to be as follows:—Plant food and soil problems. Prof. W. B. Bottomley; Timber production in Britain, Dr. E. J., Salisbury; Cotton, Dr. W. Lawrence Balls; Tea-making, Dr. S. E. Chandler; The plant as healer, Dr. E. N. Thomas; Tropical exploitation, with esoecial reference to rubber. Dr.” J. C. Willis; Vegetable dyes, Dr. “S. M. Baker; Diseases of plants, Dr. H. C. I. Gwynne-Vaughan; Coal, Dr. Marie C.'Stopes. All these lectures are open to the public without fee.