Poe denied the charges and wrote that he would sue over the allegation: "This charge is infamous, and I shall prosecute for it, as soon as I settle my accounts with the 'Mirror.'" As he explained the book: "I wrote it in conjunction with Professor Thomas Wyatt, and Professor McMultrie... my name being put to the work, as best known and most likely to aid its circulation. I wrote the Preface and Introduction, and translated from Cuvier, the accounts of the animals, etc. "All" School-books are necessarily made in a similar way." A second edition appeared in 1840 with Poe's name on the title page, but the 1845 edition appeared without it.