Papers of Professor Frederick Gugenheim Gregory, [1918-1959], comprising notebooks, [1918-1957], with some correspondence, notably concerning nutrition of plants, assimilation, respiration, stomata, metabolism, plant growth, auxins; pencil and watercolour botanical drawings; citation for the award of the Royal medal, 1957; printed papers, 1921-1957; Journal of Experimental Botany, 1957; correspondence.