Originally published in 1949, this book is concerned with the various collaborations between John Hobhouse, Lord Byron and Ugo Foscolo, which occurred around the fourth canto of Childe Harold's Pilgrimage. The text is based on documents which were previously unpublished and, in so far as possible, these documents are allowed to speak for themselves, with some additional explication where necessary. A notes section is provided at the end of the text. This book will be of value to anyone with an interest in Byron's poetry and Romantic literature in general.