DR. T. J. JENKIN, who succeeds Sir George Stapledon at Aberystwyth as professor of agriculture and as director of the Plant Breeding Station, has been associated with the Station from its very early days, and prior to that was adviser in agricultural botany at the University College of North Wales, Bangor. At this time he also worked on seed testing and collaborated with Sir George Stapledon. His early work at Aberystwyth included rust resistance trials with wheat, but his attention was soon concentrated on the genetics and breeding of grasses, of which work he was in charge. For years he has devoted himself to the varied aspects of grass improvement, including the problems correlated with self- and cross-fertilization in the more economic species, carrying on comprehensive experiments in connexion with the artificial hybridization of grasses. His work on inter-specific and inter-generic crosses with the grasses opens up many possibilities for the future of grassland improvement.