The ornithological works of Arthur, ninth Marquis of Tweeddale This book, "The ornithological works of Arthur, ninth Marquis of Tweeddale", by Arthur Hay Tweeddale, is a replication of a book originally published before 1881. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.