Fox, C., Pym, H. N., Mill, J. S., & Holloway, J. (1882). Memories of old friends: Being extracts from the journals and letters of Caroline Fox, of Penjerrick, Cornwall, from 1835 to 1871 : to which are added fourteen original letters from John Stuart Mill, never before published (Third edition.). Smith, Elder and Co..

Fox, Caroline, et al. Memories of Old Friends: Being Extracts from the Journals and Letters of Caroline Fox, of Penjerrick, Cornwall, from 1835 to 1871 : To Which Are Added Fourteen Original Letters from John Stuart Mill, Never Before Published. Third edition. Smith, Elder and Co., 1882.