Edited by F.J. Chittenden. Original paper covers. Includes articles on Darwin as an ecologist (Professor Henslow), The Hereditary Characteristics in the Potato (Dr Redcliffe Salaman) and Ferns (H.B. May). Octavo-quarto border in size. Condition: Paper covers chipped and worn, with tears to spine strip, binding firm. Contents clean, although the earlier pages are somewhat bumped or dog-eared.