Idem, " Degeneration, a Chapter in Darwinism," 1878, reprinted in the Advancement of Science (Macmillan, 1890); 20.
Several of the works of "Carmen Sylva" were written in collaboration with Mite Kremnitz, one of her maids of honour, who was born at Greifswald in 1857, and married Dr Kremnitz of Bucharest; these were published between 1881 and 1888, in some cases under the pseudonyms Dito et Idem, and includes the novel Aus zwei Welten (Leipzig, 1884), Anna Boleyn (Bonn, 1886), a tragedy, In der Irre (Bonn, 1888), a collection of short stories, &c. Edleen Vaughan, or Paths of Peril, a novel (London, 1894), and Sweet Hours, poems (London, 1904), were written in English.
The Habitant Was Separated From Oldworld Changes Two Centuries Ago By Difference Of Place And Circumstances, While He Has Hitherto Been Safeguarded From Many New World Changes By The Segregative Influences Of Race, Religion, Language And Custom; And So His Folk Lore Still Remains The Intimate Alter Et Idem Of What It Was In The Days Of The Great Pioneers.
The words "Ipse vero aeternum est resurrecturus, at idem futurus Tolandus nunquam" seem to indicate his adherence to the pantheistic creed expounded in the Pantheisticon.
The origins of the word are from the Latin root ' idem ', implying sameness and continuity.