There are plenty of 20th and 21st century reprints. This copy is in its original binding.
The cover has a closed 3cm tear running downwards from top of spine - see photos. The endpapers are sunned and the first has the author's name written in pencil and in full:'[Eneas Sweetland] Dallas'. There are pencil mark ups on the title page and preceding page - see photo.
And there are few more mark ups on the text pages (five at a quick rough count). The book's 294 pages are tightly bound and otherwise extremely clean with no foxing, no tears and no folds. There is a 5cm tear where the endpaper has come away from the inside back page - see photo. All the pages have gold/gilt edges. Wikipedia mentions this book in its biography of Dallas: His first publication in which he proved his mastery of this line of investigation was entitled Poetics, an Essay on Poetry, a work which he produced in 1852, while he resided in London. A very nice copy of this extremely rare first edition.