On the Origin of Species more recent study by science historian John van Wyhe has determined that the idea that Darwin delayed publication only dates back to the 1940s, and Darwin's contemporaries thought the time he took was reasonable. Darwin always finished one book before starting another. While he was researching, he told many people about his interest in transmutation without causing outrage. He firmly intended to publish, but it was not until September 1854 that he could work on it full-time. His 1846 estimate that writing his "big book" would take five years proved optimistic. An 1855 paper on the "introduction" of species, written
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