Darwin from Descent of Man to Emotions under Domestication" which went on sale on 30 January 1868. He now published his ideas on human evolution and on how beautiful but apparently impractical features could have evolved in "The Descent of Man, and Selection in Relation to Sex". After revising "The Origin of Species" as the definitive 6th edition, his major works on species culminated in "The Expression of the Emotions in Man and Animals". This period was followed by extensive work on insectivorous plants and research into worms. Despite Darwin's concerns that his children were weakened as his wife Emma Darwin was his cousin or had inherited
The Man Who Wrote Frankenstein that while he argues that Mary Shelley was not well educated enough to have written "Frankenstein", his argument fails because "it is not a good, let alone a great novel and hardly merits the attention it has been given." Lauritsen replied that "Frankenstein" "is a radical and disturbing work, containing some of the most beautiful prose in the English language ... a profound and moving masterpiece, fully worthy of its author, Percy Bysshe Shelley." "The Man Who Wrote Frankenstein" received positive reviews from Jim Herrick in "Gay Humanist Quarterly", Hubert Kennedy in "The Guide", and Douglas Sadownick in "The Gay