The botany of the Roraima expedition of 1884 This book, "The botany of the Roraima expedition of 1884", by Im Thurn, is a replication of a book originally published before 1887. 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.