On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection Letter" from Darwin to Asa Gray. This was the first announcement of the Darwin – Wallace theory of evolution by natural selection; the papers appeared in print on 20 August 1858. The presentation of the papers spurred Darwin to write a condensed "abstract" of his "big book" on "Natural Selection". This was published in November 1859 as "On the Origin of Species". On the voyage of the "Beagle" the young Charles Darwin took a break between graduating and starting his career as a clergyman to study the natural history of South America, an interest he had developed at the University
The Man Who Wrote Frankenstein Shelley as shown by several letters. "The Man Who Wrote Frankenstein" includes a favorable review of "Shelley's Fiction" (1998) by Phyllis Zimmerman, a book in which Zimmerman argues for Percy Bysshe Shelley's authorship of "Frankenstein", and a short bibliography of books and articles about Percy Bysshe Shelley and "Frankenstein". Lauritsen praises poet Edmund Blunden's "" (1946), calling it the best short biography about Percy Bysshe Shelley. "The Man Who Wrote Frankenstein" was first published in 2007 by Pagan Press. "The Man Who Wrote Frankenstein" was praised by the critic Camille Paglia, who wrote in "Salon" that "Lauritsen assembles an overwhelming