original: his travel writings and his extensive diaries and correspondence have also been published .
simplifications: his writings from his travels , large amounts of diaries and letters have been published as well . his travel writings , many diaries and letters have also been published . his travel writings and his many diaries and letters have also been published . his travel writings and his extensive diaries and correspondence . his travel writings and his many diaries and letters have also been published . his travel writings , diaries and correspondence have been published . his travel writings and his extensive diaries and correspondence have also been published . his travel writings , his many diaries and his letters with others have also been published .